JP2001210280A - Tubular lamp device and electric apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tubular lamp device capable of supporting a plurality of tubular lamps (heaters) in parallel, if elongated with the flow of a current, while absorbing its elongation without applying stress thereto, and easy to mount on an apparatus, and an electric apparatus using the tubular lamp device. SOLUTION: The tubular lamp device A comprises a plurality of tubular lamps L1, L1 each having filaments 3 mounted and an inactive gas filled in envelopes 1 with crushed sealed portions 2, 2 formed at both ends and external lead-in wires 5, 5 led out of the crushed sealed portions 2, 2 at both ends along the tube axis, a base member 7A provided near the crushed sealed portions 2,,2, where the plurality of tubular lamps L1, L1 are arranged in parallel, and having through-holes 71, 71 formed through which the external lead-in wires 5, 5 led out of the crushed sealed portions 2, 2 are loosely inserted, and terminal members 6, 6 partly stored in a recessed portion 72 of the base member 7A and connected to the external guide-in wires 5, 5 at the outside of the recessed portion 72. The electric apparatus comprises using the tubular lamp device A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube-shaped light bulb device such as an incandescent light bulb used as a light source for illumination or exposure of a copying machine or an infrared light bulb used as a heat source for fixing or heating a copying machine. The present invention relates to an electric appliance device equipped with a tubular bulb.

[0002]

2. Description of the Related Art Tube-shaped incandescent light bulbs are used for floodlighting in studios and stadiums and for OA equipment such as copiers and printers, and for fixing, heating, cooking, and so on in copiers and printers. A tubular infrared light bulb is used for heating such as drying and baking.

[0003] Each of these tubular incandescent lamps and tubular infrared lamps is often used as a single lamp (book). Recently, however, a high illuminance for illumination or a high calorific value for heating has been demanded or the illuminance or It is required to be able to switch and adjust the amount of heat generated, and it is easy to design according to this, and existing ones can be used. Is being developed.

A specific means for arranging a plurality of tube-shaped bulbs in parallel is disclosed in, for example, Japanese Utility Model Laid-Open No. 3-92663.
It is described in Japanese Utility Model Laid-Open No. 3-94565, Japanese Utility Model Publication No. 5-2260, Japanese Utility Model Publication No. 5-27827, and the like.

In Japanese Utility Model Laid-Open Publication No. 3-92663, a flange-like projection is formed on the outer periphery of a base attached to both ends of a tubular heater lamp used in a fixing device. The outer portion of a cut line parallel to the diameter is removed to form a flat outer surface portion, and the two bases are tied up with a tape while the flat outer surface portions are in contact with each other to form a set. Have been.

However, this lamp requires a base for each lamp, and is inferior in durability because it is wound around a tape and tied.

[0007] Further, the temperature of the lamp rises considerably when energized, particularly in the case of a halogen bulb, to cause a halogen cycle. In addition, the infrared lamp emits heat rays and becomes high in temperature. Is used, but it expands in the tube axis direction with an increase in temperature. Therefore, when the heaters (lamps) are fixed, the heater (lamp) on one side is energized (lit), and when the heater (lamp) on the other side is de-energized (pointless), the difference in extension between the two heaters (lamps) is reduced. There is a possibility that the bondage may be greatly damaged.

In addition, Japanese Utility Model Laid-Open No. 3-94565 describes that a plurality of heaters are held by a connection holding member in addition to the heater ends.

When the heater (enclosed tube) is held at the intermediate portion, there is a possibility that the connecting and holding member shields the heat radiation and causes temperature unevenness (illuminance unevenness in the case of lighting).

In Japanese Utility Model Publication No. Hei 5-21260, the pinch seal portions (crush seal portions) of a plurality of tubular incandescent lamps having pinch seal portions (crush seal portions) formed at both ends are described. A lamp device is described in which a plurality of tubular incandescent lamps are accommodated and fixed in fitting recesses provided in a plurality of bases and connected in parallel.

In this lamp device, since the ends of a plurality of tubular incandescent lamps are fixed to the same base with an adhesive or the like, the lamp on one side is energized (lit) as described above,
When the other bulb is de-energized (no point), a large difference in elongation is applied between the two bulbs and a strain force is applied, causing destruction at the pinch seal portion (crush seal portion), the adhesive portion or the base portion of the bulb. And so on.

In Japanese Utility Model Publication No. 5-27827, the same end of a plurality of heater lamp bodies arranged in parallel is connected by one insulator having a contact portion corresponding to each heater lamp body. In addition, a heater lamp in which the plurality of heater lamp bodies and the insulator are integrated is described.

In the case of this heater lamp as well, since the flat portion (crush sealing portion) of the main body is fitted and integrated into the recess of the insulator, the heater on one side is energized in the same manner as described above.
If the heater on the other side is de-energized, there is a large difference in expansion and contraction between the two, and a strain force is applied to a flat portion (crushed sealing portion) and the like, and there is a possibility that destruction may occur from this portion.

Further, the sealing portion of the lamp (heater) is not limited to the lamp (heater) described in the above-mentioned publication, and the sealing portion of the lamp (heater) is heated from the surroundings, and when the glass tube is softened, the pressing die ( (Pincher) to form a crushed sealing portion (pinch seal portion) formed by pressing and crushing, and the pressing surface has a flat surface or a regular uneven portion.

The crushed sealing portion (pinch seal portion) is made of, for example, molybdenum in a ribbon shape having a thickness of about 20 μm and a width of about 2.0 mm which is thin to maintain airtightness. Metal foil is buried as an introduction conductor.

Molybdenum is frequently used as the metal as the introducing conductor, and if the shape is simply a round bar, it is hardly compatible with glass, and it is formed as an ultrathin foil so as to absorb the expansion and contraction difference between the two. . Also, the end of the coiled filament is welded directly or internally to the inside of the surrounding tube at one end of the metal foil, and a round bar-shaped external introduction wire made of molybdenum or tungsten is welded to the other end. Connected by

When the lamp (heater) is energized, the coil-shaped filament emits light or generates heat, so that radiant heat or conduction heat from the filament reaches the sealing portion, and the sealing portion also becomes hot.

In a lamp (heater) having such a sealing portion, the surface of a round bar-shaped external introduction wire is oxidized by outside air in a long period of time to reach a portion where the surface is buried in the sealing portion. As the temperature of the sealing portion rises as described above due to the current flowing to the lamp and the energization of the lamp, the degree of oxidation of the external introduction line is further accelerated.

When the oxidation of the external introduction wire proceeds, the connected metal foil having a small heat capacity is oxidized, and as the oxidation of the metal foil proceeds, the contact resistance between the metal foil and the introduction wire increases, When the metal foil becomes too thin to withstand the current and melts, the metal foil melts down, the adhesion between the metal foil and the glass decreases, the leakage occurs due to peeling, or the crack occurs in the sealing part due to thermal distortion. This may cause the lamp (heater) to have a short life.

In particular, when a base is joined so as to cover the sealing portion, or when the sealing portion is fitted into the concave portion of the insulator, the temperature of the sealing portion further rises and the above-mentioned sealing portion is formed. Such defects often occur.

[0021]

In view of the above-mentioned circumstances, the present inventor has made various investigations in order to solve the above-mentioned problems, and has found that the base of a tube-shaped light bulb (heater) is crush-sealed at the end of the surrounding tube. Even if a plurality of tube-shaped bulbs (heaters) are energized and stretched by energizing, they can absorb the expansion and contraction of the bulbs and keep them without applying stress to the surrounding tube, etc. It is an object of the present invention to provide a tube-shaped light bulb device that can be easily attached to or connected to a device, and an electric appliance using the light bulb device.

[0022]

According to a first aspect of the present invention, there is provided a tubular light bulb device in which a coil-shaped filament and an inert gas are sealed inside a tubular envelope, and crush-sealed at both ends. And a plurality of tube-shaped light bulbs in which an external introduction line connected to the filament from the crushable sealing portion is drawn out along the tube axis, and a crush-sealing in which the plurality of tube-shaped light bulbs are arranged in parallel. A base member formed of a heat-resistant electrical insulator having an insertion hole provided in the vicinity of the stop portion and having an insertion hole through which an external lead-out line derived from each of the crushable sealing portions is loosely inserted, and connected to the insertion hole of the base member; And a terminal member connected to the external introduction line outside the concave portion.

Since the base member is interposed between the end face of the crushed sealing portion on one side of each bulb and the terminal member with a gap therebetween, each tube-shaped bulb can be slightly moved without being fixed and can be energized when electricity is supplied. Even if it extends, it can absorb this and does not affect other bulbs arranged in parallel. Also, this base member
The terminal member connected to the external lead-in is prevented from coming off.

Further, since the crushed sealing portion is not covered with a base or an adhesive or the like and the base member is outside the sealing portion, the heat radiating property is good, and the oxidization of the external lead-in line and the metal foil connected thereto is good. Is suppressed.

The tube-shaped light bulb referred to in the present invention refers to a tube-shaped incandescent light bulb that emits visible light and a tube-shaped infrared light bulb (also referred to as a heater) that emits heat rays. In addition, the number of tube lamps to be attached to one set of tube lamp devices is two or more (units) or more.
It may be.

Further, the base member may be provided on at least one end side of the sealing portion so that it can cope with thermal expansion and contraction. Also, the left and right ends of the base member may be different from each other instead of having the same form. Further, the material of the base member is formed of a heat-resistant electrical insulator such as ceramics or glass, and the shape is not limited to a rectangular parallelepiped.

According to a second aspect of the present invention, there is provided a tube-shaped light bulb device in which a coil-shaped filament and an inert gas are sealed inside a tube-shaped envelope, and crush-sealed portions are formed at both ends, and the tube-shaped envelope is formed. A plurality of tube-shaped light bulbs led out from the crushed sealing part along the tube axis to the external introduction line connected to the filament,
A plurality of tube-shaped light bulbs are provided in the vicinity of the crushed sealing portion arranged in parallel, a recess accommodating the tip portion of each one side of the crushed sealing portion, and an external lead-in line connected to the recess. A base member made of a heat-resistant electric insulator having an insertion hole through which a play hole is inserted, and a terminal member connected to the external introduction wire at a position outside the insertion hole of the base member. .

In the case where a recess for accommodating the tip of the crushable sealing portion is provided on the side surface of the base member, the base member is interposed with a gap between the end face of the crushing sealing portion and the terminal member. Accordingly, the same operation as that of the tube-type bulb device according to the first aspect is achieved.

According to a third aspect of the present invention, there is provided a tube-shaped light bulb device in which a coil-shaped filament and an inert gas are sealed inside a tube-shaped envelope, and a crushed sealing portion is formed at both ends, and this is formed. A plurality of tube-shaped light bulbs led out from the crushed sealing part along the tube axis to the external introduction line connected to the filament,
A plurality of tube-shaped light bulbs are provided in the vicinity of the crushed sealing portion arranged in parallel, a recess accommodating the tip portion of each one side of the crushed sealing portion, and an external lead-in line connected to the recess. A base member made of a heat-resistant electrical insulator having an insertion hole through which a play is inserted, and a part thereof is accommodated in a recess provided in connection with the insertion hole of the base member, and the external introduction wire is provided outside the recess. And a terminal member connected thereto.

A concave portion for accommodating a tip portion of a crushable sealing portion is provided on a side surface of the base member, and a concave portion for accommodating a part of a terminal member is provided on a surface opposite to the concave portion. It has the same effect as the tubular light bulb device.

In the tube-type light bulb device according to a fourth aspect of the present invention, each of the external introduction lines derived from the crushable sealing portion on one side of the plurality of tube-shaped surrounding tubes is connected to a common terminal member. It is characterized by having.

A plurality of light bulbs can be easily lit (heated) alone, in parallel or in series.

[0033] The tube-shaped light bulb device according to claim 5 of the present invention is characterized in that the terminal member is formed of a plate or a linear body.

The terminal member serving as the terminal portion is a specification of the light bulb device,
Various types such as a plate-like body and a linear body can be selected according to the purpose and shape.

According to a sixth aspect of the present invention, in the electric appliance apparatus according to the first aspect, the support member and the base member or the terminal member at both ends are supported by the support member. It is characterized by comprising a light bulb and a power supply member from a power supply connected to a terminal member of the tubular light bulb.

The electric apparatus is used for lighting studios and stadiums using visible light, for exposing OA equipment such as copiers and printers, or for fixing OA equipment such as copiers and printers using infrared rays, ovens and the like. It can be used as various heating devices for cooking utensils such as heaters, for heating stoves and kotatsu, and for drying and baking in various manufacturing industries.

Further, in these electric appliances, the tube-shaped bulb device may be used in combination with a reflector, a guard or the like as required.

[0038]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show a tubular light bulb device A.
FIG. 1 is a front view, FIG. 2 is an enlarged front view of a right end in FIG. 1 which is a main part, and FIGS.
2 (d) shows the base member in FIG. 2; FIG. 2 (a) is a left side view, FIG. 2 (b) is a front view, FIG. 2 (c) is a right side view, FIG.
Is a top (bottom) view.

In the drawing, L1 and L1 denote tube lamps (for visible light emission or infrared radiation) having the same rating and the same shape of two lamps (books). On both ends of a heat-resistant and electrically insulating tubular envelope (bulb) 1 made of a transparent quartz glass tube, a crush seal portion (pinch seal portion) formed by pressing with a metal mold from opposite directions is formed. A coil-shaped filament 3 is provided inside the envelope 1.

The filament 3 has a plurality of coil-shaped portions 31 formed by winding a tungsten wire, and coarsely or linearly flying portions 32 between the coil-shaped portions 31,.
, And leg portions 33, 33 at both ends, and are supported by a plurality of support members 35,.

In addition, an inert gas such as argon Ar or nitrogen N ₂ together with a trace amount of a halogen substance, for example, a mixture of bromine Br and chlorine Cl, is filled in the outer tube 1 at a normal temperature of 25 ° C. by about 0.9 × 10 3. It is sealed under a pressure of ⁵ Pa (Pascal).

Metal foils 4 and 4 made of molybdenum foil or the like are hermetically sealed in the crushed sealing portions 2 and 2, and one end of the metal foil 4 has a leg portion at the end of the filament 3. Reference numeral 33 is connected by means of welding or the like, and the other end is connected to the external lead-in wire 5 made of molybdenum or tungsten wire, which is led out in a direction substantially along the pipe axis outside the envelope 2 by the same means. To form tube lamps L1 and L1.

In this embodiment, the tube-shaped bulb L1 is arranged in parallel with a plurality of lamps (books), here two lamps (books). A terminal plate 6, which forms a rectangular terminal member formed by plating nickel on a stainless steel, nickel or iron plate by means such as welding at the tip end, is connected (S is a welding point in the figure, and this welding point is one point). However, the present invention is not limited to this.

In FIG. 1 (the same applies to the following figures), the extending directions of the left and right terminal plates 6,... Are changed, but this is a power supply line or a terminal block (neither is shown). It can be arbitrarily selected according to the connection and attachment to the cable, and both sides may be in the same direction. Also, in the drawing, 61,... Are through holes formed to be used for connecting the terminal plates 6,.

7A, 7A are the crush-sealed portions 2, 2;
Is a rectangular parallelepiped base member made of an electrically insulating ceramic such as steatite, which is disposed outside the end of the base member. The base member 7A is led out from the crushable sealing portion 2 substantially parallel to the tube axis. Two introduction line insertion holes 71, 71 through which the external introduction lines 5, 5 having a diameter larger than the outer diameters of the external introduction lines 5, 5 play with play and the introduction line insertion holes 7 are provided.
Concave portions 72, 72 having a width larger than the sum of the thickness of the terminal plate 6 and the outer diameter of the external lead-in wire 5 are provided in connection with the terminal plates 1, 71 so that a part of the terminal plates 6, 6 can be accommodated with play. ing.

The terminal plate 6 is partially accommodated in the concave portion 72 of the base member 7A, and a connection portion (welding point S) with the external introduction wire 5 is located outside the base member 7A. ing. Although not shown, the base member 7A may be formed with a through hole or an uneven portion for attachment to a terminal block (not shown) or the like.

In manufacturing the tubular light bulb device A, the external lead-in wire 5 led out of the crushable sealing portion 2 is inserted into the insertion hole 71 of the base member 7A, and then the terminal plate 6 is inserted into the concave portion 7A.
2, the external introduction wire 5 is arranged on the terminal plate 6, and the overlapped portion S near the tip of the external introduction wire 5 protruding from the concave portion 72 is connected by spot welding or the like. Mechanical and electrical connections can be made.

The connection between the terminal plate 6 and the external lead-in line 5 is made by connecting one surface of the base member 7A to the end surface of the crush-sealing portion 2 and the other surface in the concave portion 72 to the end surface of the terminal plate 6. It is important that the gap be formed with a small gap between them, and by forming this gap, the base member 7A can be slightly moved without being fixed. Further, the base member 7A is prevented from coming off by the terminal plate 6 connected to the external introduction wire 5.

Then, the two tube lamps L1 and L1 arranged side by side are integrated by passing through the base members 7A and 7A close to the outer ends of the respective sealing portions 2 and 2 on both sides. Can be configured.

The tube-shaped light bulb device A includes a base member 7
A is fixed to a mounting member (not shown) or the like using a through-hole formed in A, and when electricity is supplied to each terminal plate 6, which constitutes each terminal member, the external introduction line 5 of each of the tubular lamps L1, L1. , 5- The coiled filament 3 emits light (heats in the case of an infrared light bulb) via the metal foils 4 and 4, and the two-tube light bulbs L1 and L1 emit predetermined light (heat ray emission in the case of an infrared light bulb). I do.

According to this embodiment, two lamp lamps L1 and L1 can be simultaneously turned on (heat generation) with a simple structure of the terminal members, and the size of one lamp lamp can be increased. In the case of two tube lamps L1 and L1 whose output is divided into halves compared to the output light bulb, the outer diameter of the coiled filament can be reduced, so that the time required to reach a predetermined light emission can be reduced. The time required to emit the predetermined temperature can be shortened, that is, the rising characteristics can be improved.

Further, the energization of the tube-shaped light bulb device A is continued, and the outer tubes 1, 1 of the tube-shaped light bulbs L1, L1 are extended by thermal expansion, and the external lead-in line led out from the sealing portion 2. 5 and 5 also extend and extend in the axial direction of the tube. At this time, the surrounding pipe 1 is a base member 7A that is not completely fixed in the pipe axis direction.
The base member 7A is movably in contact with the terminal plate 6 with a small gap therebetween or in a slight contact state.

Therefore, each of the tube lamps L1, L
1, the outer pipes 1, 1, the external lead wires 5, 5 and the terminal plate 6,
6 is connected to the base member 7A with a margin even if it is expanded by thermal expansion, and is not completely fixed in the tube axis direction. Since no stress is applied to the wires 2 and the external introduction wires 5 and 5, these breakage can be prevented.

The holding of the bulb-shaped lamps L1, L1 is achieved by using the base members 7A, 7A at both ends into which the external introduction wires 5, 5 are loosely inserted.
The terminal plates 6 and 6 that are in contact with the inner wall of the insertion hole 71 of 7A and that are connected to the ends of the external introduction wires 5 and 5 are partially in contact with the inner wall portions of the concave portions 72 and 72. The light bulb L1 can be securely and safely supported.

Further, since the crushed sealing portions 2 and 2 are not covered with a base or an adhesive or the like and the base member 7A is outside the sealing portion 2, the heat dissipation is good, and the external introduction wire 5 and the Oxidation of the metal foil 4 to be connected is suppressed, so that short life can be prevented.

Further, in FIG.
1 may be energized and the other bulb L1 may be de-energized. In such a case, the difference between the two bulbs L1 and L1 is large. Is not fixed, so no stress is applied,
Damage can be prevented.

FIGS. 4 to 6 show a second embodiment of the tube-type bulb device B of the present invention. FIG. 4 is a front view and FIG.
FIG. 6 is an enlarged front view of the right end in FIG.
(A)-(d) show the base member in FIG. 5, and FIG.
Is a left side view, FIG. (B) is a front view, FIG. (C) is a right side view,
FIG. 4D is an upper (lower) view, and the same parts as those in the first embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof is omitted.

The point of difference between the tube-shaped bulb device B of the second embodiment and the tube-shaped bulb device A of the first embodiment is a base member 7B. That is, the rectangular parallelepiped base member 7B is provided with the sealing portions 2 and 2 of the two tubular lamps L1 and L2.
The end portions 21 and 21 are provided on the surface where the end portions 21 and 21 face each other.
Are provided at two places with a predetermined space therebetween. Also, two introduction line insertion holes 71, 71 communicating with the recesses 73, 73 and allowing the external introduction lines 5, 5 having a diameter larger than the outer diameter of the external introduction lines 5, 5 to pass through with play are provided in the base member 7B. Are provided to pass through.

In the tube-shaped bulb device B, the external introduction lines 5, 5 of the two tube-shaped bulbs L1, L2 are connected to the base member 7B.
Of the base member 7B are accommodated in the recesses 73, 73 of the base member 7B, and the introduction line insertion holes on the opposite surface side. Terminal plates 6 and 6 can be connected to external introduction wires 5 and 5 projecting from 71 and 71 by welding.

The tube lamps L1 and L2 are held by the front end portions 21 and 21 of the crushable sealing portions 2 and 2 at the base members 7 at both ends.
B, 7B contact the inner wall portions of the recesses 73, 73,
Since the external introduction lines 5 and 5 are in contact with the inner wall portion of the insertion hole 71, the tube-shaped lamps L1 and L2 can be supported securely and safely.

Then, when electricity is supplied to the tube lamp device B, the surrounding tubes 1, 1 and the external introduction wires 5, 5 of the tube lamps L1, L2 are extended by thermal expansion and extended in the axial direction of the tube. At this time, is the distal end portion 21 of the crushed sealing portion 2 of the outer tube 1 abutted on the inner wall portion of the recess 73, and its end face is slightly separated from the inner wall portion of the recess 73 of the base member 7B? Alternatively, in a slight contact state, the opposite surface of the base member 7B has a slight gap with the terminal plate 6 or is in a light contact state.

Therefore, each of the tube-shaped bulbs L1, L
2 outer pipes 1,1, external introduction wires 5,5 and terminal plate 6,
6 is connected to the base member 7B with a margin even if expanded by thermal expansion, and is not completely fixed in the tube axis direction, and thus is similar to that described in the first embodiment. Since no stress is applied to the outer tubes 1 and 1, the sealing portions 2 and the external introduction wires 5 and 5, there is an effect that the breakage thereof can be prevented.

FIGS. 7A to 7C show modifications of the base member shown in FIGS. 4 to 6, wherein FIG. 7A is a left side view, FIG. 7B is a front view, and FIG. (c) is an upper (lower) view. FIG. 7 shows a rectangular parallelepiped base member 7.
The recesses in which the ends 21 of the sealing portions 2, 2 of the two lamp bulbs L 1, L 2 formed on the surface facing the crushing sealing portion 2 of C are cutout portions 74, 74. It was done.

Even if the recesses for accommodating the end portions 21 of the crushed sealing portions 2 and 2 are the cutout portions 74 and 74 having two open surfaces, most of the inner wall surfaces of the cutout portions 74 and 74 are provided. In addition, the external introduction wires 5, 5 inserted into the introduction wire insertion holes 71, 71 can hold the tube-shaped bulbs L1, L2 in the tube axis direction, and have the same operation and effect as described in the second embodiment. Can play.

FIGS. 8 and 9 show a third embodiment of the tube-shaped light bulb device C of the present invention. FIG. 8 is an enlarged front view of a right end portion which is a main part of the tube-shaped light bulb device C. , FIG.
(D) shows the base member in FIG. 8, (a) is a left side view, (b) is a front view, (c) is a right side view, (d)
Is an upper (lower) side view, and the same portions as those in the first and second embodiments shown in FIGS. 1 to 7 are denoted by the same reference numerals and description thereof is omitted.

The tube lamp devices A and B of the first and second embodiments of the tube lamp device D of the third embodiment.
Is a base member 7D.

That is, the rectangular parallelepiped base member 7D
Are two tube-shaped bulbs L1, as shown in an enlarged manner in FIG.
On the surface facing the ends 21 and 21 of the sealing portions 2 and 2 of L1,
Recesses 73, 73 for accommodating the end portions 21, 21 with a gentle gap therebetween are provided at two locations with a predetermined interval.

On the opposite surface having the recesses 73, 73, a part of the terminal plates 6, 6 is provided with play at two places separated by a predetermined distance as shown in an enlarged view in FIG. Concave portions 72, 72 having a width larger than a value obtained by adding the thickness of the terminal plate 6 to be accommodated and the outer diameter of the external introduction wire 5 are provided.

The recesses 73 and 73 and the recesses 7
Two introduction line insertion holes 71, 71 through which the outside introduction lines 5, 5 having a diameter larger than the outer diameter of the outside introduction lines 5, 5 are passed with play so that they communicate with each other, are penetrated. It is provided.

Further, in this tube-shaped bulb device D, the external introduction wires 5, 5 of the two tube-shaped bulbs L1, L1 are connected to the recesses 73, 73, the introduction wire insertion holes 71, 71 and the recessed portion 7 of the base member 7D.
2 and 72, and the respective crush seal portions 2 and 2 are accommodated in the recesses 73 and 73, and the recesses 7 on the opposite surface side.
The terminal plates 6, 6 can be connected to the tips of the external introduction wires 5, 5 projecting from the terminals 2, 72 by welding.

In the tubular light bulb device D according to the third embodiment, the holding of the two bulb-shaped light bulbs L1 and L1 is performed by using the front end portions 21 and 21 of the crushable sealing portions 2 and 2 at both ends. Member 7
B, 7B, the terminal plates 6, 6 which are in contact with the inner wall portions of the recesses 73, 73 and which are connected to the tips of the external introduction wires 5, 5 respectively.
Since the portions also contact the inner wall portions of the concave portions 72, 72, the tube-shaped light bulbs L1, L1 can be supported more reliably and safely.

In connecting the external introduction wires 5 and 5 to the terminal plates 6 and 6, one surface of the base member 7D is the end surface of the crush sealing portions 2 and 2 and the other surface is the terminal plate 6 and 6, the base member 7D can be moved slightly without being fixed by forming this gap. In the first and second embodiments, the base member 7D can be moved slightly. The same operational effects as described above can be obtained.

In the first to third embodiments shown in FIGS. 1 to 9, the base members 7A, 7B, 7
Although the crushable sealing portions 2 and 2 of the tube lamps L1 and L2 correspond to the longitudinal direction of C and 7D in the direction in which the crushed surfaces overlap, the configuration may be as shown in FIGS. 10 and 11.

FIGS. 10 and 11 show a fourth embodiment of a tube-type electric bulb device E according to the present invention. FIG.
FIGS. 11A to 11D show the base member in FIG.
1 (a) is a left side view, FIG. 1 (b) is a front view, FIG. 1 (c) is a right side view, and FIG. 1 (d) is an upper (lower) view. The same parts as those in the third embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the tube lamp device E shown in the fourth embodiment, the crushing surfaces of the crushing sealing portions 2, 2 of the two tube lamps L1, L1 are straight in the longitudinal direction of the base member 7E. Since they correspond to each other on the line, they have the same operation and effects as described in the first to third embodiments, and the thickness of the crushable sealing portion 2 is smaller than the width of the crushable surface. This has the advantage that the base member 7E can be made smaller.

In the first to fourth embodiments shown in FIGS. 1 to 11, the terminal member 6 connected to the external lead-in line 5 is described as a terminal plate.
13 and FIG.

FIG. 12 is an enlarged front view of the right end of the main part showing a fifth embodiment of the tubular light bulb device F of the present invention. FIG. 13 is a sectional view of the tubular light bulb device G of the present invention. FIG. 14 is an enlarged front view of a right end portion of a main part according to the sixth embodiment, and the same parts as those in the first to fourth embodiments shown in FIGS. The description is omitted.

In the tubular light bulb device F shown in the fifth embodiment, the terminal member 6 connected to the external lead-in line 5 is not welded, but the convex piece 62 of the terminal member 6A made of a plate-like metal is bent to be bent. The introduction line 5 is held or crimped. In addition, a double connection such as welding may be used. In this case, the gap between the front and rear surfaces of the base member 7B can be easily formed by adjusting the space between the outer surface of the base member 7B and the tip of the convex piece 62.

Further, in the tubular light bulb device G shown in the sixth embodiment, the terminal member connected to the external introduction wire 5 is an electric wire 6B such as a cord, and the connection shown in the upper part of FIG. The core wire 63 is connected by welding so as to intersect with the external introduction wire 5 projecting from the member 7B in the pipe axis direction. In this case, the gap between the front and rear surfaces of the base member 7B can be easily formed by adjusting the space between the outer surface of the base member 7B and the sheath of the electric wire 6B.

The connection shown in the lower part of FIG. 13 is made by bending and winding a plate-shaped metal piece 64 along the external lead-in wire 5 protruding from the base member 7B in the tube axis direction with the core wire 63 of the electric wire 6B. Things. In addition, a double connection such as welding may be used. In this case, the gap between the front and rear surfaces of the base member 7B is
It can be easily formed by adjusting the distance between the outer surface and the core wire 63 or the plate-shaped metal piece 64.

In the first to sixth embodiments shown in FIGS. 1 to 13, the external introduction lines 5,... Derived from the crush-sealing portions 2, 2 at both ends of each of the tubular lamps L1, L2. Although the terminal members 6,... Are connected to the individual members, the external introduction lines 5,... Derived from the crush sealing portions 2, 2 at one end may be common as shown in FIG. 14 and FIG.

FIG. 14 is a front view showing a seventh embodiment of the tube-shaped light bulb device H of the present invention, and FIG. 15 is a front view showing an eighth embodiment of the tube-shaped light bulb device J of the present invention. FIG. 1 above
The same parts as those of the first to sixth embodiments shown in FIG. 13 are denoted by the same reference numerals, and the description thereof will be omitted.

The tubular light bulb devices H and J shown in the seventh and eighth embodiments have two external introduction wires projecting from one side (right side in the drawing) of the crush sealing portions 2. 5 and 5 are connected to a common terminal member 8.

In the case of FIG. 14, the base member can be omitted by increasing the thickness of the terminal member 8 or the like. In addition, in the case of FIG. 15, since the base member 7B is provided, the holding force of the bulb is large, and the terminal member 8 can be reduced.

Then, the tube-shaped light bulb devices H and J having this configuration
Means that one of the external introduction lines 5 and 5 is short-circuited, and the other terminal members 6 and 6 and the common terminal member 8 on the other side are energized to turn on the two tube lamps L1 and L2. (Heat generation), or by energizing the terminal member 8 common to the terminal member 6 of one of the tube lamps L1 to light (heat) one lamp of the tube lamp L1 or the terminal members 6 on the other side. By energizing for six times, the two bulb-shaped bulbs L1 and L2 can be lit in series (heat generation), and various changed outputs can be obtained.

FIG. 16 is an explanatory view of an electric appliance using a tubular light bulb device in which two tubular infrared light bulbs (books) are set, here, for example, a main part of a toner fixing device mounted on an electronic copying machine. Reference numerals 9U and 9D in the drawing denote long rollers arranged to face each other up and down. These rollers 9U and 9D are made of a tubular body 91 made of aluminum or iron and having a surface covered with silicone rubber or Teflon 92.

Further, on the substantially central axis in the rollers 9U and 9D, the above-mentioned tube-shaped bulb device A, which has the same output as the conventional one lamp but separates the output into two lamps, is a supporting member (not shown). ), And when electricity is supplied through a terminal member from a power supply member (not shown) connected to a power supply unit, the filaments of the tubular lamps L1 and L1 generate heat and both rollers 9
U and 9D constitute a heating device for fixing the toner in which the temperature rises.

When the copy paper 94 onto which the toner 93 is transferred in a predetermined distribution state from a transfer drum (not shown) or the like is fed between the rollers 9U and 9D rotating in the direction of the arrow, the copy paper 94 and the toner are transferred. Are heated from above and below, and after the heated toner 93 is melted, the copy paper 94 is melted.
It is fixed on the top and drawn as a predetermined character or pattern 95 or the like.

Further, the toner fixing device mounted on the copying machine does not always apply the rated voltage to the tube-shaped bulb device A in order to suppress power consumption, and the rated voltage is intermittently supplied only during the copying operation. However, since the tube-shaped light bulb device A of the present invention uses two light bulbs having a smaller filament diameter and a smaller diameter than the conventional one, the lamps 9U and 9D have good fast heat performance. The heat-up (heating) time is shorter than that of conventional products, and the speed of copying operation can be increased.

Further, in the tubular light bulb devices H and J shown in FIGS. 14 and 15, since the outputs of the light bulbs can be changed, the outputs of a plurality of the light bulbs are not the same, and the coils shown in FIGS. The coiled filaments 3 having different ratings with different lengths of the shape portions 31,... May be used.

As described above, the tube lamps L1 and L having different ratings are used.
2 is used for lighting that uses visible light, which requires dimming, etc. It is also used for exposure and fixing in copiers, etc., in accordance with the size of the paper or rises from preheating. It can be used when performing a short time.

Further, the tube lamps L1, L1 in the tube lamp device A are provided.
Since the crushed sealing portion of L1 is not covered with a base or the like, it has good heat dissipation and does not cause an excessive rise in temperature, so that the short life of the light bulbs L1 and L1 can be prevented.

The present invention is not limited to the above embodiment. For example, the material of the envelope constituting the tube-shaped light bulb is not limited to quartz glass, but may be hard glass such as alumina silicate glass, and the introduction conductor hermetically sealed in the crushed sealing portion is molybdenum or the like. Not only the metal foil but also a linear body may be used as long as the airtightness with glass can be maintained.

Further, the base member provided at the end of the tube-shaped light bulb device can be adapted to thermal expansion and contraction as long as it is provided at at least one end, so that it may be provided on only one side. In addition, when the base members are disposed at both ends, the base members on the left and right sides are not of the same form but different in form, for example, different base members from the appropriate base members 7A to 7E described in the above embodiment. You can choose and use it.

The number of light bulbs to be attached to the tube-type bulb device is not limited to two, but may be two or more. May be formed according to the number of lamps (lines). In addition, the tube-shaped light bulb device can be easily fixed to a terminal block or a mounting table by utilizing a base member or a terminal member.

Further, the tube-shaped bulb device is used for lighting studios and stadiums using visible light, for exposing OA equipment such as copying machines and printers, or for fixing OA equipment such as copying machines and printers using infrared rays. It can be used as a heating device for various electric appliances such as ovens and heaters for cooking utensils, heating for stoves and kotatsu, and various other manufacturing industries.

Furthermore, in these electric appliance devices, the tube-shaped light bulb device may be used in combination with a reflector, a guard, and the like as necessary.

[0098]

According to the first to third aspects of the present invention, since the tube-shaped light bulb is not completely fixed by a base or an adhesive, a stress is applied to the surrounding tube, the sealing portion and the external introduction line. The base member is outside the sealing part, so heat dissipation is good, and oxidation of the external lead wire and the metal foil connected to it is suppressed, preventing the occurrence of short life. can do.

Further, since a plurality of tube-shaped bulbs are used, the outer diameter of the coiled filament can be reduced, and the rising (heating) characteristics thereof can be improved. Further, the present invention provides a tube-shaped light bulb device having various advantages of improved quality such as reliable and safe writing and electrical connection of a tube-shaped light bulb with a base member and a terminal member having a simple structure. Can be provided.

According to the fourth aspect of the present invention, a plurality of bulbs can be easily lit (heated) alone, in parallel, or in series.

Further, according to the fifth aspect of the present invention, the terminal member serving as the terminal portion can be variously selected from a plate-like body and a linear body according to the specification, purpose, shape, and the like of the light bulb device.

Further, according to the sixth aspect of the present invention, it is possible to provide various electric appliances using a tube-shaped bulb apparatus having a simple mounting structure for lighting and heating and having a long life.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a tubular light bulb device A of the present invention.

FIG. 2 is an enlarged front view of a right end in FIG. 1 which is a main part.

3A and 3B show a base member in FIG. 2, wherein FIG. 3A is a left side view, FIG. 3B is a front view, FIG. 3C is a right side view, and FIG.
Is a top (bottom) view.

FIG. 4 is a front view showing a second embodiment of the tube-type bulb device B of the present invention.

5 is an enlarged front view of a right end in FIG. 4, which is a main part.

6 (a) is a left side view, FIG. 6 (b) is a front view, FIG. 6 (c) is a right side view, and FIG.
Is a top (bottom) view.

7 shows a modification of the base member shown in FIGS. 4 to 6, wherein FIG. 7 (a) is a left side view, FIG. 7 (b) is a front view, and FIG. 7 (c) is an upper (lower) view. .

FIG. 8 is an enlarged front view of a right end showing a main part of a third embodiment of the tubular light bulb device C of the present invention.

9 (a) is a left side view, FIG. 9 (b) is a front view, FIG. 9 (c) is a right side view, and FIG. 9 (d) shows a base member in FIG.
Is a top (bottom) view.

FIG. 10 is a front view showing a fourth embodiment of the tube-type electric bulb device E of the present invention.

11 (a) is a left side view, FIG. 11 (b) is a front view, FIG. 11 (c) is a right side view, and FIG. 11 (d) is an upper (lower) view. It is.

FIG. 12 is an enlarged front view of a right end portion showing a main part of a fifth embodiment of the tubular light bulb device F of the present invention.

FIG. 13 is an enlarged front view of a right end showing a main part of a sixth embodiment of the tubular light bulb device G of the present invention.

FIG. 14 is a front view showing a tube-type bulb device H according to a seventh embodiment of the present invention.

FIG. 15 is a front view showing an eighth embodiment of the tube-type bulb device J of the present invention.

FIG. 16 is an explanatory diagram showing a main part of a toner fixing device mounted on an electronic copying machine which is an electric apparatus according to an embodiment of the present invention.

[Explanation of symbols]

 A, B, C, D, E, F, G, H, J: tubular light bulb device L1, L2: tubular light bulb 1: tubular envelope (bulb) 2: crush sealing portion 3: coiled filament 4: Metal foil 5: External introduction wire 6, 6A: Terminal member (terminal plate) 6B: Terminal member (linear body) 7A to 7E: Base member 71: External introduction wire insertion hole 72: Recess 73: Recess 8: Common terminal members

Claims (6)

[Claims] A coil-shaped filament and an inert gas are sealed inside a tubular envelope, and a crushed sealing portion is formed at both ends, and an external introduction wire connected to the filament from the crushed sealing portion is provided. A plurality of tube-shaped light bulbs led out along the tube axis; and a plurality of tube-shaped light bulbs provided in the vicinity of a crushed sealing portion in which the plurality of tube-shaped light bulbs are arranged in parallel, and an outside led out from each one side of the crushed sealing portion A base member made of a heat-resistant electrical insulator having an insertion hole into which the introduction wire is loosely inserted; a part of which is accommodated in a recess provided in connection with the insertion hole of the base member, and the outside is provided outside the recess. And a terminal member connected to the lead-in wire. 2. A coil-shaped filament and an inert gas are sealed inside a tubular envelope, and a crushed sealing portion is formed at both ends, and an external introduction wire connected to the filament from the crushed sealing portion is provided. A plurality of tube-shaped light bulbs led out along the tube axis; and a plurality of these tube-shaped light bulbs are provided in the vicinity of a crushed sealing portion arranged in parallel, and a tip end of each one side of the crushed sealing portion is provided. A base member made of a heat-resistant electrical insulator having a recess to be accommodated and an insertion hole connected to the recess and through which an external introduction line is loosely inserted; and the external introduction line at a position outside the insertion hole of the base member. And a connected terminal member. 3. A coil-shaped filament and an inert gas are sealed in the inside of the tubular outer tube, and a crushed sealing portion is formed at both ends, and an external introduction wire connected to the filament from the crushed sealing portion is provided. A plurality of tube-shaped light bulbs led out along the tube axis; and a plurality of these tube-shaped light bulbs are provided in the vicinity of a crushed sealing portion arranged in parallel, and a tip end of each one side of the crushed sealing portion is provided. A base member made of a heat-resistant electrical insulator having a recess to be accommodated and an insertion hole connected to the recess and through which an external introduction wire is loosely inserted; and a recess provided in connection with the insertion hole of the base member. And a terminal member connected to the external lead-in outside the concave portion. 4. A plurality of bulb-shaped light bulbs, each of which has an external lead-in extending from a crushable sealing portion on one side thereof is connected to a common terminal member. A tube light bulb device according to one of the preceding claims. 5. The tube-type bulb device according to claim 1, wherein the terminal member is formed of a plate or a linear body. 6. A tube-shaped light bulb device according to claim 1, wherein a base member or a terminal member at both ends is supported by the support member; and a terminal member of the tube-shaped light bulb. A power supply member from a power supply to be connected;