Abstrict
A radiant electric heater is disclosed having an auxiliary reflector
in front of a halogen lamp. The heater includes a ceramic base defined
with clampling grooves for directly clamping terminals of the halogen
lamp. The auxiliary reflector has a concave surface outline which
faces a curved front end of the halogen lamp. The heater also includes
a fastening member having one end which is affixed to the auxiliary
reflector and the other end which is affixed to a center portion
of the safety grill.
Claims
What is claimed is:
1. A radiant electric heater, including a reflector, heat generation
means disposed on the reflector, and a safety grill coupled to a
front end of the reflector, comprising: a ceramic base defined with
clamping grooves for directly clamping terminals of a halogen lamp
serving as the heat generation means, the ceramic base receiving
radiant heat from the halogen lamp, being indirectly heated by the
radiant heat and irradiating far infrared rays; an auxiliary reflector
arranged in front of the halogen lamp and having a concave surface
outline which faces a curved front end of the halogen lamp, for
primarily reflecting heat rays toward the reflector, the auxiliary
reflector possessing a size capable of covering the curved front
end of the halogen lamp; and a fastening member having one end which
is affixed to the auxiliary reflector and the other end which is
affixed to a center portion of the safety grill.
2. A radiant electric heater, including a reflector, heat generation
means disposed on the reflector, and a safety grill coupled to a
front end of the reflector, comprising: a ceramic base defined with
clamping grooves for directly clamping terminals of a halogen lamp
serving as the heat generation means, the ceramic base receiving
radiant heat from the halogen lamp, being indirectly heated by the
radiant heat and irradiating far infrared rays; an auxiliary reflector
arranged in front of the halogen lamp and having a concave surface
outline which faces a curved front end of the halogen lamp, for
primarily reflecting heat rays toward the reflector, the auxiliary
reflector possessing a size capable of covering the curved front
end of the halogen lamp and being applied on a front surface thereof
with a ceramic coating layer; a fastening member having one end
which is affixed to the auxiliary reflector and the other end which
is affixed to a center portion of the safety grill; and clampers
loosely accommodated, along with the terminals of the halogen lamp,
in the clamping grooves of the ceramic base, for rendering a shock-absorbing
characteristic to the halogen lamp; each damper comprising a pair
of leg portions accommodated in the clamping groove in such a way
as to absorb shock, each separated by a predetermined distance from
the terminal of the halogen lamp, and having one ends fixed to the
ceramic base, and a clamping band portion integrally joined to the
other ends of the leg portions and having a diameter which is less
than an interval measured between the leg portions, for clamping
a portion of the halogen lamp, which portion is adjacent to the
terminal.
Description BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electric heater, and more particularly,
the present invention relates to a radiant electric heater in which
terminals of a halogen lamp are clamped with respect to a ceramic
base secured to a reflector, and an auxiliary reflector is arranged
in front of the halogen lamp, so that a heat reflection efficiency
and durability of the radiant electric heater are improved.
2. Description of the Related Art
With the improvement of living standards, as a room heating arrangement,
electric heaters have widely been used throughout the world, in
place of oil heaters. In order to meet diverse market demand, various
kinds of electric heaters have been developed.
As is well known in the art, a basic principle of an electric heater
is to warm surrounding air with heat generated by applying a current
to a heating wire which is disposed in a space delimited by a safety
guard or grill. The electric heater is provided with appurtenances
or its associated elements for efficiently radiating heat generated
from the heating wire. As a typical example, an electric heater,
in which a reflection plate prepared by bending a quadrangular thin
metal sheet is placed behind the heating wire, has been pervaded,
but a satisfactory effect is not obtained. This type of electric
heater has a problem in that heat cannot be transferred to a desired
far distance. In the case that a large current is applied to the
electric heater to transfer heat to the desired far distance, dangers
of overheating and electrical fire may be accompanied. On the contrary,
in the case that a small current is applied to the electric heater
to avoid any possible accident, it is difficult to generate a sufficient
amount of heat.
In order to cope with the problem involved in the above-mentioned
conventional electric heater, in Korean Utility Model Laid-open
Publication No. 98-61527, there is disclosed a radiant electric
heater capable of transferring an appropriate amount of heat to
a desired far distance to warm room air to a sufficient degree.
In such a radiant electric heater, a semi-spherical or parabolic
reflector is arranged behind a heating wire, and a diameter of a
heating wire mounting member on which the heating wire is wound
is gradually decreased toward a rear end of the heater, so that
heat is not diffused toward all directions but concentrated in a
narrow range, and thereby, can be transferred to the desired far
distance.
Concretely speaking with reference to FIGS. 1 and 2, a radiant
electric heater 1 largely comprises a heating part 10 including
a heating wire 12, and a support part 20. The support part 20 has
a support base 21 in which main circuits for controlling operation
of the radiant electric heater 1 are built in. A power control knob
22 for power supply or power cut-off, a temperature adjustment knob
23 for adjusting a temperature of the heating wire 12, a power connection
indicator lamp 24, a safety switch 29 for cutting off power supply
to the heating wire 12 when the heater 1 is tilted, and an alarm
lamp 25 for calling attention to dangerous tilting of the heater
1, and so forth, are installed on rear and front portions of the
support base 21.
The heating part 10 is connected to a support column 26 of the
support base 21 via a retractable rod 27. By pressing a height adjustment
button 28, the retractable rod 27 can be retracted into or extended
from the support column 26. That is, an overall height of the radiant
electric heater 1 can be adjusted as desired.
Referring to FIG. 2 which is a partial side cross-sectional view
illustrating the heating part 10 of the heater 1, the heating part
10 includes the heating wire 12 which is wound around a heating
wire mounting member 11 having a predetermined configuration, a
reflector 13 which is arranged behind the heating wire 12, a safety
grill 14 which is coupled to the reflector 13 and defines a front
contour of the entire heating part 10, and a support case 15 which
is connected to a rear end of the reflector 13. The heating wire
12 is connected to the reflector 13 by the medium of a bracket 16,
and a heat sensor 17 is fixed to a front surface of the reflector
13 at a predetermined location.
In the construction of the radiant electric heater 1, as stated
above, unlike the first-mentioned conventional electric heater in
which heat is diffused toward all directions, heat rays emitted
from the heating wire 12 and designated by the reference character
a are concentrated in a predetermined range C due to the presence
of the reflector 13. As a consequence, heat can be transferred to
a desired far distance. At this time, due to the fact that the heat
rays a do not remain around the heating part 10 including the heating
wire 12 but are emitted through a reflecting function of the reflector
13, the safety grill 14 is prevented from being overheated.
A maximum heat ray convergence can be accomplished in the case
where the reflector 13 has a semi-spherical surface outline such
as seen in a conventional concave mirror, or a parabolic surface
outline having substantially a concave center portion.
The heating wire mounting member 11, around which the heating wire
12 is wound and which is made of a heat-resistant material such
as a ceramic, and the like, has a configuration of a truncated cone
which is gradually decreased in its diameter toward a rear end thereof.
Due to this fact, all heat rays a from the heating wire 12 are directed
toward the reflector 13, and therefore, it is possible to prevent
any of the heat rays a from diffusing out of the predetermined range
C. The heating wire mounting member 11 may have a configuration
of a polygonal pyramid such as a trigonal pyramid, etc. Hence, it
is sufficient that the heating wire mounting member 11 has a diameter
which is gradually decreased in a rearward direction.
While this type of radiant electric heater 1 exhibits an increased
heat efficiency, it still suffers from defects in that, since the
heating wire 12 for generating heat is shaped in the form of a coil,
the heating wire 12 is likely to be corroded when it is used for
a lengthy period of time, and thereby, durability of the heater
1 can be deteriorated and fire can be caused. Further, because the
heating wire 12 is directly wound around the heating wire mounting
member 11 made of a ceramic, as the ceramic which directly receives
heat is overheated, a far infrared ray irradiation efficiency can
be lowered.
SUMMARY OF THE INVENTION
Accordingly, the present invention has been made in an effort to
solve the problems occurring in the related art, and an object of
the present invention is to provide a radiant electric heater which
utilizes as its heat source (that is, heat generation means) a halogen
lamp, and in which an auxiliary reflector is arranged in front of
the halogen lamp in a safety grill, so that a heat reflection efficiency
is improved due to additional heat reflection by the auxiliary reflector
and a far infrared ray irradiation efficiency is improved because
a ceramic base receives radiant heat from the halogen lamp in such
a way as not to be overheated.
Another object of the present invention is to provide a radiant
electric heater in which terminals of a halogen lamp are clamped
in clamping grooves defined in a ceramic base to simplify a clamping
work, a front surface of an auxiliary reflector is coated with a
ceramic to improve a far infrared ray irradiation efficiency, and
each terminal and a clamper therefor are commonly accommodated in
each clamping groove to improve a shock-absorbing characteristic.
To these ends, in the present invention, a halogen lamp is utilized
as heat generation means, and an auxiliary reflector is spacedly
arranged in front of the halogen lamp to allow transfer of an increased
amount of radiant heat. The auxiliary reflector is fastened with
respect to a safety grill to ease an assembling work. A front surface
of the auxiliary reflector is coated with a ceramic to improve a
far infrared ray irradiation efficiency. Terminals of the halogen
lamp are accommodated and clamped in clamping grooves defined in
a ceramic base. The ceramic base does not directly receive heat
generated from the halogen lamp but indirectly receives radiant
heat emitted therefrom to improve a far infrared ray irradiation
efficiency.
In order to achieve the first object, according to one aspect of
the present invention, there is provided a radiant electric heater,
including a reflector, heat generation means disposed on the reflector,
and a safety grill coupled to a front end of the reflector, comprising:
a ceramic base defined with clamping grooves for directly clamping
terminals of a halogen lamp serving as the heat generation means,
the ceramic base receiving radiant heat from the halogen lamp, being
indirectly heated by the radiant heat and irradiating far infrared
rays, the ceramic base being secured to a center portion of the
reflector; an auxiliary reflector spacedly arranged in front of
the halogen lamp and having a concave surface outline which faces
a curved front end of the halogen lamp, for primarily reflecting
heat rays toward the reflector, the auxiliary reflector possessing
a size capable of covering the curved front end of the halogen lamp;
and a fastening member having one end which is affixed to the auxiliary
reflector and the other end which is affixed to a center portion
of the safety grill.
In order to achieve the second object, according to another aspect
of the present invention, there is provided a radiant electric heater,
including a reflector, heat generation means disposed on the reflector,
and a safety grill coupled to a front end of the reflector, comprising:
a ceramic base defined with clamping grooves for directly clamping
terminals of a halogen lamp serving as the heat generation means,
the ceramic base receiving radiant heat from the halogen lamp, being
indirectly heated by the radiant heat and irradiating far infrared
rays; an auxiliary reflector spacedly arranged in front of the halogen
lamp and having a concave surface outline which faces a curved front
end of the halogen lamp, for primarily reflecting heat rays toward
the reflector, the auxiliary reflector possessing a size capable
of covering the curved front end of the halogen lamp and being applied
on a front surface thereof (opposing to a reflecting surface) with
a ceramic coating layer; a fastening member having one end which
is affixed to the auxiliary reflector and the other end which is
affixed to a center portion of the safety grill; and dampers loosely
accommodated, along with the terminals of the halogen lamp, in the
clamping grooves of the ceramic base; each damper comprising a pair
of leg portions accommodated in the clamping groove, each separated
by a predetermined distance from the terminal of the halogen lamp,
and having one ends fixed to the ceramic base, and a clamping band
portion integrally joined to the other ends of the leg portions
and having a diameter which is less than an interval measured between
the leg portions, for clamping a portion of the halogen lamp, which
portion is adjacent to the terminal.
BRIEF DESCRIPTION OF THE DRAWINGS
The above objects, and other features and advantages of the present
invention will become more apparent after a reading of the following
detailed description when taken in conjunction with the drawings,
in which:
FIG. 1 is a front view illustrating a conventional electric heater;
FIG. 2 is a partial side cross-sectional view of FIG. 1;
FIG. 3 is a front view illustrating a radiant electric heater in
accordance with a first embodiment of the present invention;
FIG. 4 is a side cross-sectional view taken along the line A--A
of FIG. 3;
FIG. 5 is a partial transverse cross-sectional view of FIG. 4;
FIG. 6 is a side cross-sectional view illustrating a radiant electric
heater in accordance with a second embodiment of the present invention;
FIG. 7 is a partial enlarged cross-sectional view of FIG. 6; and
FIG. 8 is a transverse cross-sectional view taken along the line
B--B of FIG. 7.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
Reference will now be made in greater detail to a preferred embodiment
of the invention, an example of which is illustrated in the accompanying
drawings. Wherever possible, the same reference numerals will be
used throughout the drawings and the description to refer to the
same or like parts.
FIG. 3 is a front view illustrating a radiant electric heater in
accordance with a first embodiment of the present invention; FIG.
4 is a side cross-sectional view taken along the line A--A of FIG.
3; and FIG. 5 is a partial transverse cross-sectional view of FIG.
4. The radiant electric heater according to the present invention
includes a reflector 30, a halogen lamp 40 disposed on the reflector
30 and serving as heat generation means, and a safety grill 31 coupled
to a front end of the reflector 30. The radiant electric heater
according to the present invention further includes a ceramic base
50, an auxiliary reflector 60, and a fastening member 32. The ceramic
base 50 is secured to the reflector 30 to permit power supply to
the halogen lamp 40. The ceramic base 50 is defined with clamping
grooves 51 for clamping terminals 42 which are formed at free portions
of the halogen lamp 40 having a U-shaped configuration. The auxiliary
reflector 60 is spacedly arranged in front of the halogen lamp 40
to face a curved front end of the halogen lamp 40, and functions
to primarily reflect heat rays toward the reflector 30. The fastening
member 32 has one end which is affixed to the auxiliary reflector
60 and the other end which is affixed to a center portion of the
safety grill 31.
The halogen lamp 40 is clamped to the ceramic base 50 serving as
a halogen lamp fixing plate, in a manner such that the halogen lamp
40 is electrically insulated from the reflector 30, and is supplied
with power through wires 44. The ceramic base 50 is brought into
contact with the reflector 30, and a size of the ceramic base 50
can be adjusted. In FIG. 4, the reference numeral 51 designates
the clamping grooves for clamping the halogen lamp 40 with respect
to the ceramic base 50, 52 screws for securing the ceramic base
50 to the reflector 30, and 33 a grip grasped upon moving the radiant
electric heater. It is desirable that the grip 33 is integrally
formed on an upper surface of a support case 34 for supporting the
reflector 30 in a rear position.
The auxiliary reflector 60 is spacedly arranged in front of the
halogen lamp 40, and has a concave surface which faces the curved
front end of the halogen lamp 40, in a manner such that heat generated
by the halogen lamp 40 can be primarily reflected toward the reflector
30 while being prevented from being diffused outward.
In the radiant electric heater according to the present invention,
by driving the screws 52 through threaded holes defined in the ceramic
base 50 into the reflector 30, the ceramic base 50 serving as the
halogen lamp fixing plate is secured to the reflector 30 by means
of the screws 52. The terminals 42 of the halogen lamp 40 are accommodated
in the clamping grooves 51 of the ceramic base 50 and then, connected
with power lines (not shown), respectively. At this time, the clamping
grooves 51 are defined to have slits on their bottom surfaces, in
a manner such that both free portions of the halogen lamp 40 which
are adjacent to the terminals 42 are accommodated in the clamping
grooves 51, and the terminals 42 are fitted through the slits, respectively.
In this connection, it is to be readily understood from the drawings
that each of the free portions has a circular cross-section and
each terminal 42 has a flattened configuration. The fastening member
32 is affixed at the other end thereof to the center portion of
the safety grill 31 (by welding, screws, etc.) which is coupled
to the front end of the reflector 30. The auxiliary reflector 60
is joined to the one end of the fastening member 32 in a manner
such that the concave surface of the auxiliary reflector 60 faces
the curved front end of the halogen lamp 40. Of course, it is to
be noted that the auxiliary reflector 60 is spaced apart from the
curved front end of the halogen lamp 40 not to be brought into contact
therewith. In the radiant electric heater according to the present
invention, constructed as described above, if power is supplied
to the halogen lamp 40 by manipulating an adjustment knob 35, the
halogen lamp 40 generates heat. One part of heat rays (designated
by the reference symbol H1), which are emitted from the halogen
lamp 40, are directly applied to the reflector 30 thereby to provide
radiant heat to a user. The other part of the heat rays (designated
by the reference symbol H2), which are emitted from the halogen
lamp 40, are primarily reflected on the auxiliary reflector 60 and
then secondarily reflected on the reflector 30 to provide additional
radiant heat to the user. That is to say, as can be readily seen
from FIG. 2, in the conventional art, only the heat rays H1 initially
directed toward the reflector can be reflected by the reflector.
However, in the present invention, in addition to the heat rays
H1, the heat rays H2, which are emitted outward in a state wherein
they are not reflected by the reflector 30, are redirected toward
the reflector 30 by the presence of the auxiliary reflector 60.
As a consequence, in the present invention, since an overall amount
of heat rays reflected from the reflector 30 is significantly increased
in comparison with the case of the conventional art, a heat generation
efficiency is markedly improved. At this time, due to the fact that
the auxiliary reflector 60 defines the concave surface which faces
the halogen lamp 40, the radiant heat is not diffused and instead
concentrated on the reflector 30, whereby a heat reflection efficiency
is also increased.
Also, because the auxiliary reflector 60 is spacedly arranged in
front of the halogen lamp 40, it is possible to prevent access of
a child to the halogen lamp 40, using an elongate object such as
a chop stick, whereby the halogen lamp 40 is protected against damage
or breakage. Further, since the ceramic base 50 is secured to the
reflector 30 at a reduced height in comparison with the conventional
structure, installation can be easily implemented.
Moreover, in the present invention, the one part of the heat rays
emitted from the halogen lamp 40 is primarily reflected on the auxiliary
reflector 60 and then secondarily reflected on the reflector 30.
In this way, the heat rays emitted from the halogen lamp 40 are
applied to the ceramic base 50 as indirect radiant heat rays. Thus,
while, in the conventional art as shown in FIG. 1 and 2, the heating
wire 12 is directly wound around the heating wire mounting member
11 and thereby overheated to about 700.degree. C., in the present
invention, far infrared rays designated by the reference symbol
al are irradiated under a low temperature of no greater than 300.degree.
C. due to the indirect radiant heat (that is, since the ceramic
base 50 does not directly receive heat from the halogen lamp 40
but receives indirect radiant heat). Hence, in consideration of
the fact that a far infrared ray irradiation efficiency is increased
under a low temperature rather than a high temperature, the present
invention achieves an improved far infrared ray irradiation efficiency.
In addition, because a difference between maximum and minimum temperatures
is small, it is possible to prevent the ceramic base 50 from being
thermally damaged, whereby durability of the entire radiant electric
heater is enhanced.
FIG. 6 is a side cross-sectional view illustrating a radiant electric
heater in accordance with a second embodiment of the present invention;
and FIG. 7 is a partial enlarged cross-sectional view of FIG. 6.
In this second embodiment of the present invention, a front surface
of the auxiliary reflector 60 is applied with a ceramic coating
layer 61, the ceramic base 50 is defined with the clamping grooves
51 for clamping the halogen lamp 40, and halogen lamp dampers 70
and the terminals 42 of the halogen lamp 40 are simultaneously accommodated
in the clamping grooves 51 in such a way as to absorb vibration
or shock.
In one example, each damper 70 comprises a pair of leg portions
71 and a clamping band portion 72. The leg portions 71 are accommodated
in the clamping groove 51 and fitted through a bottom wall of the
clamping groove 51 to be securely placed therein. Each leg portion
71 is separated by a predetermined distance D from a flattened surface
43 of the terminal 42 of the halogen lamp 40. The leg portions 71
have one ends fixed to the ceramic base 50. The clamping band portion
72 is integrally joined to the other ends of the leg portions 71
to define a ring-shaped configuration. The clamping band portion
72 functions to clamp a portion of the halogen lamp 40, which portion
is adjacent to the terminal 42. Each leg portion 71 is separated
from the terminal 42 of the halogen lamp 40 by the predetermined
distance D so as to be capable of absorbing shock. To clamp the
halogen lamp 40, the clamping band portion 72 defines an opening
73 and has a clamping tongue 74. The reference numeral 41 designates
a glass tube of the halogen lamp 40, 45 halogen gas, and 46 a heating
coil. The one ends of the leg portions 71 are fitted through the
bottom wall of each clamping groove 51 and then bent outward to
form fixing lips 75.
FIG. 8 is a transverse cross-sectional view taken along the line
B--B of FIG. 7. The clamping grooves 51 of the ceramic base 50 are
defined in a manner such that the terminals 42 of the halogen lamp
40 and the dampers 70 can be simultaneously accommodated therein.
Each leg portion 71 of the clamper 70 is separated from the flattened
surface 43 of the terminal 42 of the halogen lamp 40 by the predetermined
distance D, as shown in FIG. 7. As described above, the one ends
of the leg portions 71 are bent outward after being fitted through
the bottom wall of the clamping groove 51, to form the fixing lips
75.
In this second embodiment of the present invention, as for operation
of the radiant electric heater, since it is the same as in the first
embodiment, detailed explanation thereof shall be omitted. In this
second embodiment, since the ceramic coating layer 61 is formed
on the front surface of the auxiliary reflector 60, far infrared
rays a2 are irradiated from the ceramic coating layer 61 in addition
to the far infrared rays al from the ceramic base 50, whereby a
far infrared ray irradiation efficiency is improved. Further, due
to the fact that each of the leg portions 71 of the clamper 70 is
separated from the flattened surface 43 of the terminal 42 of the
halogen lamp 40 the predetermined distance D, the leg portions 71
can absorb vibration of the halogen lamp 40 even when shock is externally
exerted to the halogen lamp 40. To enable this vibration absorbing
function, the clamping groove 51 has a diameter which is greater
than a diameter r1 of the halogen lamp 40. Of course, by the fact
that an interval measured between the leg portions 71 is decreased
at the other ends of the leg portions 71 to allow the leg portions
71 to be integrated with the clamping band portion 72 having the
ring-shaped configuration for clamping the portion of the halogen
lamp 40, which portion is adjacent to the terminal 42, the leg portions
71 primarily absorb, at the other ends of them, shock externally
applied to the halogen lamp 40. In other words, when the halogen
lamp 40 are vibrated (for example, in a direction represented by
the reference symbol d1 or d2), although the clamping hand portion
72 is also vibrated together with the halogen lamp 40, this vibration
is absorbed by the leg portions 71, whereby an improved shock-absorbing
characteristic is obtained in the halogen lamp 40. When the terminals
42 are vibrated in a direction represented by the reference symbol
e1 or e2 in FIG. 8, since the flattened surface 43 has a width which
is the same as the diameter r1 of the halogen lamp 40, the flattened
portion 43 can absorb shock along its widthwise direction. Namely,
if the halogen lamp 40 is moved in the direction represented by
the reference symbol d1 or d2, while the terminal 42 has a narrow
shock absorbing area, the leg portions 71 of the damper 70 can reliably
absorb shock. In this case, shock absorption by the leg portions
71 is enabled due to the fact that the clamping band portion 72
having the ring-shaped configuration for clamping the halogen lamp
40 is integrally formed with the other ends of the leg portions
71. Therefore, shock externally applied to the halogen lamp 40 is
dispersed through the clamping band portion 72 over the leg portions
71, and according to this, the halogen lamp 40 can have a satisfactory
shock-absorbing characteristic. While it was described in the above
description that the halogen lamp has the U-shaped configuration,
a person skilled in the art will readily understood that the present
invention is not limited to the illustrated configuration of the
halogen lamp but may have a diversity of configurations including
an 11-shaped or cross-shaped one. The 11-shaped configuration means
that the two halogen lamps are arranged in parallel.
As apparent from the above description, the radiant electric heater
according to the present invention provides advantages in that,
since a halogen lamp is utilized as heat generation means and clamped
with respect to a ceramic base, installation of the halogen lamp
can be easily implemented. Also, since radiant heat from the halogen
lamp is applied to the ceramic base, a far infrared ray irradiation
efficiency can be improved under a relatively low temperature, whereby
an improved hyperthermic therapy effect can be rendered to a user.
Further, by the fact that an auxiliary reflector is spacedly arranged
in front of the halogen lamp in such a way as to ease an assembling
work, a heat reflection efficiency is improved due to additional
heat reflection by the auxiliary reflector. Moreover, by coating
a front surface of the auxiliary reflector with a ceramic, a far
infrared ray irradiation efficiency can be further improved. Furthermore,
due to the fact that the halogen lamp is clamped with respect to
the ceramic base by dampers in clamping grooves defined in the ceramic
base and each of a pair of leg portions of each clamper is separated
from the halogen lamp by a predetermined distance, a shock-absorbing
characteristic of the halogen lamp can be improved. In addition,
since a clamping band portion is integrally formed with the pair
of leg portions in a manner such that each terminal of the halogen
lamp is clamped by the clamping band portion to be capable of absorbing
shock, the halogen lamp is kept from being damaged or broken into
pieces, whereby durability and operational reliability of the entire
radiant electric heater are improved.
In the drawings and specification, there have been disclosed typical
preferred embodiments of the invention and, although specific terms
are employed, they are used in a generic and descriptive sense only
and not for purposes of limitation, the scope of the invention being
set forth in the following claims. |