JP4475141B2 - Incandescent lamp and heating unit - Google Patents

Incandescent lamp and heating unit Download PDF

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JP4475141B2
JP4475141B2 JP2005051033A JP2005051033A JP4475141B2 JP 4475141 B2 JP4475141 B2 JP 4475141B2 JP 2005051033 A JP2005051033 A JP 2005051033A JP 2005051033 A JP2005051033 A JP 2005051033A JP 4475141 B2 JP4475141 B2 JP 4475141B2
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incandescent lamp
sealing
power supply
arc tube
tube
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JP2006236833A (en
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雅俊 下中
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Ushio Denki KK
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Description

本発明は、複写機などOA機器の熱源に用いられる白熱ランプと、この白熱ランプを用いた加熱ユニットに関するものである。   The present invention relates to an incandescent lamp used as a heat source for office automation equipment such as a copying machine, and a heating unit using the incandescent lamp.

従来、この種の白熱ランプの一例としては、例えば図6に示すものがある。この白熱電球1aは、管型の石英ガラス製の発光管2aの内部に、フィラメント3aが配置されており、フィラメント3aの両端部は、発光管2aの両端の圧潰された封止部4aに埋設されたモリブデン製の金属箔5aに接続されており、金属箔5aの他端には外部リード棒6aが接続され、この外部リード棒6aが封止部4aから突出している。
そして、両端の外部リード棒6aには、管軸方向に伸びる板状端子7aが接続されており、この板状端子7aには、ビス止め用の貫通孔70aがそれぞれ設けられている。
Conventionally, an example of this type of incandescent lamp is shown in FIG. In this incandescent lamp 1a, a filament 3a is arranged inside a tube-shaped quartz glass arc tube 2a, and both ends of the filament 3a are embedded in a crushed sealing portion 4a at both ends of the arc tube 2a. An external lead bar 6a is connected to the other end of the metal foil 5a, and the external lead bar 6a protrudes from the sealing portion 4a.
The external lead rods 6a at both ends are connected to plate terminals 7a extending in the tube axis direction. The plate terminals 7a are provided with through holes 70a for screwing.

この白熱ランプ1aは、加熱ローラの熱源として利用されるものであり、図7に示すように、白熱ランプ1aは、加熱ローラRに内蔵されて、加熱ローラRの両端開口から板状端子7aが突出し、ランプ取付部材Tの壁部T1に板状端子7aが貫通孔70aに貫通されるビス(不図示)によって固定されるものである。
そして、白熱ランプ1aのフィラメント3aが存在する領域が有効発熱領域L1であり、この領域L1から発生する熱によって加熱ローラRを加熱するものである。
The incandescent lamp 1a is used as a heat source for the heating roller. As shown in FIG. 7, the incandescent lamp 1a is built in the heating roller R, and the plate-like terminals 7a are provided from the openings at both ends of the heating roller R. The plate-like terminal 7a is fixed to the wall portion T1 of the lamp mounting member T by a screw (not shown) that passes through the through hole 70a.
And the area | region where the filament 3a of the incandescent lamp 1a exists is the effective heat_generation | fever area | region L1, and the heating roller R is heated with the heat | fever generate | occur | produced from this area | region L1.

実用新案登録第2605942号Utility model registration No. 2605942

近年、複写機などOA機器の小型化が要求されており、図7に示す加熱ユニットによれば、ランプ取付部材Tの位置によって決まる板状端子7aの貫通孔70aの中心同士の離間距離である固定距離Lを短くする傾向にある。
一方、加熱ローラRの軸方向(長手方向)の長さは、A3、B4サイズなど紙サイズの規格があり短くすることができないものである。
In recent years, there has been a demand for downsizing of office automation equipment such as copying machines, and according to the heating unit shown in FIG. 7, the distance between the centers of the through-holes 70a of the plate-like terminal 7a is determined by the position of the lamp mounting member T. The fixed distance L tends to be shortened.
On the other hand, the length of the heating roller R in the axial direction (longitudinal direction) cannot be shortened due to paper size standards such as A3 and B4 sizes.

この結果、白熱ランプ1aは、両端に管軸方向に伸びる板状端子7aを有するものであり、板状端子7aの貫通孔70aとランプ取付部材Tとの位置関係により、白熱ランプ1aの発光管2aが長いものは利用できず、必然的に、発光管2aの封止部4aの一部が加熱ローラR内に位置する構造となっている。   As a result, the incandescent lamp 1a has plate-like terminals 7a extending in the tube axis direction at both ends, and the arc tube of the incandescent lamp 1a depends on the positional relationship between the through hole 70a of the plate-like terminal 7a and the lamp mounting member T. The long 2a cannot be used, and a part of the sealing portion 4a of the arc tube 2a is necessarily located in the heating roller R.

このような構造の加熱ユットの場合、加熱ローラRの両端部の内部には、封止部4aが存在するのみで、熱源となるフィラメント3aが存在せず、加熱ローラRの両端部は白熱ランプ1aの有効発熱領域L1から外れた位置になってしまう。
この結果、加熱ローラRの両端部の加熱程度が低く両端部の温度が上がらず、ローラ表面の温度が均一にならないという問題があった。
In the case of the heating unit having such a structure, only the sealing portion 4a exists inside the both ends of the heating roller R, and the filament 3a serving as a heat source does not exist, and both ends of the heating roller R are incandescent lamps. It will be in a position outside the effective heat generation area L1 of 1a.
As a result, there is a problem that the degree of heating at both ends of the heating roller R is low and the temperature at both ends does not rise, and the temperature on the roller surface does not become uniform.

更には、封止部4aが加熱ローラR内に位置することにより、封止部4aの温度が上昇しやすく、封止部4aに埋設された金属箔が酸化しやすく、金属箔が酸化し体積が膨張して封止部4aが破壊される恐れがあった。   Furthermore, since the sealing part 4a is located in the heating roller R, the temperature of the sealing part 4a is likely to rise, the metal foil embedded in the sealing part 4a is easily oxidized, and the metal foil is oxidized and has a volume. May expand and the sealing portion 4a may be destroyed.

本発明は、このような問題を解決するためになされたものであって、白熱ランプの両側に設けられた板状端子の形状を変えることにより、板状端子間に存在する有効発熱領域が長い白熱ランプを提供することができ、さらに、この白熱ランプを組み込んだ加熱ユニットにおいては、加熱ローラの両端部を確実に加熱することができローラ表面温度を均一にでき、しかも、白熱ランプの封止部が破損しない長い使用寿命を得ることができる加熱ユニットを提供することにある。   The present invention has been made to solve such a problem, and by changing the shape of the plate-like terminals provided on both sides of the incandescent lamp, the effective heat generation region existing between the plate-like terminals is long. An incandescent lamp can be provided. Further, in a heating unit incorporating the incandescent lamp, both ends of the heating roller can be reliably heated, the roller surface temperature can be made uniform, and the incandescent lamp can be sealed. An object of the present invention is to provide a heating unit capable of obtaining a long service life in which a portion is not damaged.

請求項1に記載の白熱ランプは、管型の発光管の管軸に沿ってフィラメントが配置され、発光管の両端の圧潰された封止部から突出する外部リード棒に導電性の板状端子が接続された白熱ランプにおいて、前記板状端子は、前記外部リード棒と接続される接続部と、当該接続部に続き発光管の管軸から離間する方向に伸びる中継部と、当該中継部に続き封止部と対向する位置に設けられた給電固定部を有し、前記給電固定部は、前記封止部の幅広の封止面と対向する位置に形成され、当該給電固定部を含む面と前記封止部の幅広の封止面を含む面が平行になっており、前記給電固定部には、ビス止め用孔または切り欠きが形成されていることを特徴とする。
The incandescent lamp according to claim 1, wherein a filament is disposed along a tube axis of a tube-type arc tube, and a conductive plate-like terminal is connected to an external lead rod protruding from a crushed sealing portion at both ends of the arc tube. In the incandescent lamp, the plate-like terminal is connected to the external lead rod, to the connecting portion, to the relay portion extending in a direction away from the tube axis of the arc tube, and to the relay portion. A power supply fixing portion provided at a position facing the sealing portion, and the power supply fixing portion is formed at a position facing the wide sealing surface of the sealing portion and includes the power supply fixing portion. And a plane including a wide sealing surface of the sealing portion are parallel to each other, and a screw fixing hole or a notch is formed in the power supply fixing portion .

請求項2に記載の加熱ユニットは、管型の発光管の管軸に沿ってフィラメントが配置され、発光管の両端の圧潰された封止部から突出する外部リード棒に導電性の板状端子が接続された白熱ランプと、前記白熱ランプが内蔵される円筒状の加熱ローラと、前記加熱ローラの両端開口の近傍に設けられたランプ取付部材と、よりなる加熱ユニットにおいて、前記板状端子は、前記外部リード棒と接続される接続部と、当該接続部に続き発光管の管軸から離間する方向に伸びる中継部と、当該中継部に続き封止部と対向する位置に設けられた給電固定部を有し、前記給電固定部は、前記封止部の幅広の封止面と対向する位置に形成され、当該給電固定部を含む面と前記封止部の幅広の封止面を含む面が平行になっており、前記給電固定部には、ビス止め用孔または切り欠きが形成されており、前記ランプ取付部材は、当該白熱ランプの封止部を受容する空間を形成するための壁部を有し、前記給電固定部のビス止め用孔または切り欠きにビスを貫通させて、当該給電固定部と前記壁部が対向した状態で固定されていることを特徴とする。
The heating unit according to claim 2, wherein a filament is arranged along a tube axis of a tube-type arc tube, and a conductive plate-like terminal is connected to an external lead rod protruding from a crushed sealing portion at both ends of the arc tube. In the heating unit comprising: an incandescent lamp connected to each other; a cylindrical heating roller in which the incandescent lamp is built; and a lamp mounting member provided in the vicinity of both end openings of the heating roller. A connecting portion connected to the external lead rod; a relay portion extending in a direction away from the tube axis of the arc tube following the connecting portion; and a power supply provided at a position facing the sealing portion following the relay portion. A fixing portion, and the power supply fixing portion is formed at a position facing the wide sealing surface of the sealing portion, and includes a surface including the power supply fixing portion and a wide sealing surface of the sealing portion. The surfaces are parallel, and the feed fixing part Retaining hole or notch is formed, the lamp mounting member has a wall portion for forming a space for receiving a sealing portion of the incandescent lamp, screwing holes of the power feed fixing portion or A screw is passed through the notch, and the power supply fixing portion and the wall portion are fixed in a state of facing each other.

本発明によれば、白熱ランプの封止部から突出する外部リード棒に板状端子が取り付けられており、板状端子は、外部リード棒と接続される接続部と、接続部に続き発光管の管軸から離間する方向に伸びる中継部と、中継部に続き封止部と対向する位置に設けられた給電固定部を有し、給電固定部は封止部と空間的に重なる位置にビス止め用孔または切り欠きが形成されているので、板状端子間に存在する有効発熱領域が長い白熱ランプとなる。   According to the present invention, the plate-like terminal is attached to the external lead rod protruding from the sealing portion of the incandescent lamp, and the plate-like terminal is connected to the external lead rod and the arc tube following the connection portion. A relay portion extending in a direction away from the tube axis, and a power feeding fixing portion provided at a position facing the sealing portion following the relay portion, and the power feeding fixing portion is screwed at a position spatially overlapping the sealing portion. Since the stop holes or notches are formed, the incandescent lamp has a long effective heat generation area existing between the plate-like terminals.

さらに、この貫通孔を用いて白熱ランプを加熱ユニットのランプ取付部材に固定する構造であるので、白熱ランプの発光管の外径より突出する部分の長さも短くすることができる。   Further, since the incandescent lamp is fixed to the lamp mounting member of the heating unit using the through hole, the length of the portion protruding from the outer diameter of the arc tube of the incandescent lamp can be shortened.

また、この白熱ランプを組み込んだ加熱ユニットにおいては、白熱ランプの封止部とランプ取付部材が干渉しないので、封止部を加熱ローラの外部の取付部材の位置に存在させることができ、発光管を長くして封止部を加熱ローラの外に出すことができ、白熱ランプの有効発熱領域を加熱ローラの長さに合わせることができ、加熱ローラの端部を確実に加熱することができ、ローラ表面温度を均一にできる。
さらには、白熱ランプの封止部を加熱ローラの外に出すことができ、封止部の破損を防止して長い使用寿命を得ることができる加熱ユニットとなる。
Further, in the heating unit incorporating the incandescent lamp, since the sealing portion of the incandescent lamp and the lamp mounting member do not interfere with each other, the sealing portion can be present at the position of the mounting member outside the heating roller. The sealing part can be taken out of the heating roller by extending the length, the effective heating area of the incandescent lamp can be adjusted to the length of the heating roller, and the end of the heating roller can be reliably heated, The roller surface temperature can be made uniform.
Furthermore, the sealing part of the incandescent lamp can be taken out of the heating roller, and the heating unit can be obtained in which the sealing part is prevented from being damaged and a long service life can be obtained.

本発明の白熱ランプを、図1を用いて説明する。
図1(a)は白熱ランプの平面図、図1(b)は、白熱ランプの側面図である。
白熱ランプ1は、管型石英ガラス製の発光管2の内部に、タングステン製のフィラメント3が配置されており、フィラメント3の両端部は、発光管2の両端の圧潰された封止部4に埋設されたモリブデン製の金属箔5に接続されており、金属箔5の他端にはモリブデン製の外部リード棒6が接続され、この外部リード棒6が封止部4から突出している。
この発光管2の両端に形成された外部リード棒6には、図示しない外部電源に電気的に接続される導電性であるSUS製の板状端子7が接続され、この板状端子7には、この白熱ランプ1を組込むたとえば複写機などの加熱ユニットの取付部材(図示せず)にビス止めするためのビス止め用の貫通孔70がそれぞれ設けられている。
The incandescent lamp of the present invention will be described with reference to FIG.
FIG. 1A is a plan view of the incandescent lamp, and FIG. 1B is a side view of the incandescent lamp.
In the incandescent lamp 1, a tungsten filament 3 is arranged inside an arc tube 2 made of tubular quartz glass, and both ends of the filament 3 are connected to the crushed sealing portions 4 at both ends of the arc tube 2. An external lead rod 6 made of molybdenum is connected to the other end of the metal foil 5 and the external lead rod 6 protrudes from the sealing portion 4.
The external lead rod 6 formed at both ends of the arc tube 2 is connected to a conductive SUS plate terminal 7 electrically connected to an external power source (not shown). Screw fixing through holes 70 are provided for fixing screws to a mounting member (not shown) of a heating unit such as a copying machine in which the incandescent lamp 1 is incorporated.

この白熱ランプ1は、図1(b)に示すように、白熱ランプ1を後述する加熱ユニットの取付部材に取り付けるための板状端子7の貫通孔70中心同士の間の離間距離を固定距離Lとし、Lは255mmであり、フィラメント3が存在する領域を有効発熱領域L1とし、L1は220mmである。   As shown in FIG. 1B, the incandescent lamp 1 has a fixed distance L between the centers of the through holes 70 of the plate-like terminal 7 for attaching the incandescent lamp 1 to a mounting member of a heating unit described later. L is 255 mm, the region where the filament 3 is present is the effective heat generation region L1, and L1 is 220 mm.

なお、図7に示す従来の白熱ランプを用いた加熱ユニットで説明すると、従来の白熱ランプの場合、固定距離Lは本願発明の白熱ランプと同じ255mm、有効発熱領域L1は199mmであり、従来では固定距離Lに対する有効発光領域L1が占める割合は78%であるが、図1に示す本願発明の白熱ランプの場合、固定距離Lに対する有効発光領域L1が占める割合は86%であり、本願発明の白熱ランプは板状端子間に存在する有効発熱領域が長いものとなる。   The heating unit using the conventional incandescent lamp shown in FIG. 7 will be described. In the case of the conventional incandescent lamp, the fixed distance L is 255 mm, which is the same as the incandescent lamp of the present invention, and the effective heat generation area L1 is 199 mm. The ratio of the effective light emitting area L1 to the fixed distance L is 78%, but in the case of the incandescent lamp of the present invention shown in FIG. 1, the ratio of the effective light emitting area L1 to the fixed distance L is 86%. The incandescent lamp has a long effective heat generation area between the plate terminals.

図2(a)は本発明の白熱ランプの一端部の斜視図、図2(b)は本発明の白熱ランプを組み込んだ本発明の加熱ユニットの説明図である。
板状端子7は、厚み0.3mmの板状体を所定の形状に折り曲げ加工して成型されており、外部リード棒6に接続される接続部71と、この接続部71に続き発光管2の管軸Xから離間する方向に伸びる中継部72と、この中継部72に続き封止部4と対向する位置に給電固定部73を有する構造である。
2A is a perspective view of one end portion of the incandescent lamp of the present invention, and FIG. 2B is an explanatory diagram of the heating unit of the present invention incorporating the incandescent lamp of the present invention.
The plate-like terminal 7 is formed by bending a plate-like body having a thickness of 0.3 mm into a predetermined shape. The connection portion 71 is connected to the external lead rod 6, and the arc tube 2 is connected to the connection portion 71. The relay portion 72 extends in a direction away from the tube axis X, and the power supply fixing portion 73 is provided at a position facing the sealing portion 4 following the relay portion 72.

詳細に説明すると、給電固定部73は、前記封止部4の幅広の封止面41と対向する位置に形成され、当該給電固定部73を含む面と前記封止部4の幅広の封止面41を含む面が平行になっている。
また、前記給電固定部73には、前述した白熱ランプ1を加熱ユニットのランプ取付部材Tにビス止めするためのビス止め用の貫通孔70が形成されている。
More specifically, the power feeding fixing portion 73 is formed at a position facing the wide sealing surface 41 of the sealing portion 4, and the surface including the power feeding fixing portion 73 and the wide sealing of the sealing portion 4. The plane including the plane 41 is parallel.
In addition, a screw fixing through-hole 70 for screwing the above-mentioned incandescent lamp 1 to the lamp mounting member T of the heating unit is formed in the power supply fixing portion 73.

図2(b)に示すように、本発明の加熱ユニットは、加熱ユニットを構成する基台Kに白熱ランプ1を取り付けるためのランプ取付部材Tが取付られている。
この基台Kは適宜の構造で加熱ローラRも取付られている。
As shown in FIG. 2 (b), the heating unit of the present invention is provided with a lamp mounting member T for mounting the incandescent lamp 1 on a base K constituting the heating unit.
The base K has an appropriate structure and has a heating roller R attached thereto.

ランプ取付部材Tは、白熱ランプ1の封止部4を受容する空間T0を形成するための壁部T1を有し、板状端子7の給電固定部73が壁部T1に対向するように、空間T0に封止部4をスライド挿入し、その状態で貫通孔70にビスBを捩じ込むことにより、白熱ランプ1をランプ取付部材Tに取り付け固定するものである。
なお、白熱ランプ1の他端側も、板状端子7とランプ取付部Tの構造が同じであり、説明は省略する。
The lamp mounting member T has a wall portion T1 for forming a space T0 for receiving the sealing portion 4 of the incandescent lamp 1, and the feed fixing portion 73 of the plate-like terminal 7 is opposed to the wall portion T1. The incandescent lamp 1 is attached and fixed to the lamp attachment member T by slidingly inserting the sealing portion 4 into the space T0 and screwing the screw B into the through hole 70 in this state.
The other end side of the incandescent lamp 1 also has the same structure of the plate-like terminal 7 and the lamp mounting portion T, and the description thereof is omitted.

図3は、本発明の加熱ユニットの概略説明図であり、加熱ローラRの軸方向(長手方向)の長さは図7に示す加熱ローラと同じ長さの230mmである。
図3に示すように、白熱ランプ1の両端の板状端子7が、接続部71と、発光管の管軸から離間する方向に伸びる中継部72と、封止部4と対向する位置に設けられた給電固定部73を有する構造であり、給電固定部73が封止部4と干渉せず空間的に重なる構造となっているので、給電固定部73の貫通孔70の中心同士の離間距離である固定距離Lを従来と同じ255mmとすることができる。
FIG. 3 is a schematic explanatory view of the heating unit of the present invention. The length of the heating roller R in the axial direction (longitudinal direction) is 230 mm, which is the same length as the heating roller shown in FIG.
As shown in FIG. 3, the plate-like terminals 7 at both ends of the incandescent lamp 1 are provided at positions facing the connection portion 71, the relay portion 72 extending in a direction away from the tube axis of the arc tube, and the sealing portion 4. Since the power supply fixing portion 73 has a structure in which the power supply fixing portion 73 does not interfere with the sealing portion 4 and spatially overlaps, the distance between the centers of the through holes 70 of the power supply fixing portion 73 The fixed distance L can be set to 255 mm, which is the same as the conventional distance.

そして、ランプ取付部材Tの空間T0に封止部4が挿入され、ランプ取付部材Tと封止部4が干渉しない構造であるので、封止部4をランプ取付部材Tの位置にまでもってくることができ、つまり、発光管2を長くして封止部4を加熱ローラRの外に出すことができる。   Since the sealing portion 4 is inserted into the space T0 of the lamp mounting member T and the lamp mounting member T and the sealing portion 4 do not interfere with each other, the sealing portion 4 is brought to the position of the lamp mounting member T. That is, the arc tube 2 can be lengthened and the sealing portion 4 can be taken out of the heating roller R.

この結果、白熱ランプ1の有効発熱領域L1が加熱ローラRの軸方向の長さと略等しくなり、加熱ローラRの両端部を確実に加熱することができローラ表面温度を均一にできる。   As a result, the effective heat generation area L1 of the incandescent lamp 1 becomes substantially equal to the length of the heating roller R in the axial direction, so that both ends of the heating roller R can be reliably heated and the roller surface temperature can be made uniform.

さらに、封止部4が加熱ローラRの外部に露出した構造であるので、封止部4が過度に加熱されることがなく、封止部4内の金属箔の温度上昇が抑制され封止部4が破損することなく、長寿命の加熱ユニットとなる。   Furthermore, since the sealing portion 4 is exposed to the outside of the heating roller R, the sealing portion 4 is not excessively heated, and the temperature rise of the metal foil in the sealing portion 4 is suppressed and sealed. The part 4 becomes a long-life heating unit without being damaged.

図4は、本発明の白熱ランプの一端側部分の拡大断面図である。
図4に示すように、板状端子7は、接続部71を有し、この接続部71は封止部4から伸び出した外部リード棒6の端部60で当接した状態で管軸Xと直交する方向に折り返され中継部72が形成され、さらに封止部4の封止面41と並行であって発光管2の中心側に向けて折り返され封止部4と空間的に重なり封止面41と対向する位置にくるように給電固定部73が形成されている。
FIG. 4 is an enlarged cross-sectional view of one end portion of the incandescent lamp of the present invention.
As shown in FIG. 4, the plate-like terminal 7 has a connection portion 71, and the connection portion 71 is in contact with the end portion 60 of the external lead rod 6 extending from the sealing portion 4. The relay portion 72 is formed in a direction orthogonal to the direction of the arc, and is further folded toward the center side of the arc tube 2 in parallel with the sealing surface 41 of the sealing portion 4 so as to overlap and seal the sealing portion 4 spatially. A feed fixing portion 73 is formed so as to be at a position facing the stop surface 41.

この結果、給電固定部73の発光管2の管軸Xからの垂直方向の離間距離H1は、図4中、破線で示す外部リード棒6の端部60で管軸Xと直交する方向に折り返されただけの仮想の給電固定部72bの発光管の管軸Xからの垂直方向の離間距離H2に比べ、小さくでき、白熱ランプ1の発光管2の外径より突出する部分の長さも短くすることができる。   As a result, the vertical separation distance H1 of the feed fixing portion 73 from the tube axis X of the arc tube 2 is folded back in the direction orthogonal to the tube axis X at the end 60 of the external lead bar 6 indicated by a broken line in FIG. Compared to the vertical distance H2 from the tube axis X of the arc tube of the imaginary power supply fixing portion 72b, the length of the portion protruding from the outer diameter of the arc tube 2 of the incandescent lamp 1 can be shortened. be able to.

図5は、板状端子の様々な他の例を示すものであり、白熱ランプの封止部側の一部も合わせて図示している。
図5(a)〜(n)に示すように、全ての板状端子7は、接続部71に封止部4から突出する外部リード棒6が接続されており、給電固定部73が封止部4と対向する位置に設けられている。
具体的には、図5(a)〜(j)、(l)(m)は、給電固定部73が封止部4の幅広の封止面41と対向する位置にくるように設けられており、図5(k)(n)は、給電固定部73が封止部4の幅狭の封止面42と対向する位置にくるように設けられている。
さらに、ビス止め用の貫通孔70または切り欠き700が封止部4と空間的に重なるように、給電固定部73に形成されている。
この結果、図5に示す板状端子7を用いた白熱ランプ1は、白熱ランプの両端に形成された板状端子間に渡って効率よく有効発熱領域を形成することができる。
FIG. 5 shows various other examples of the plate-like terminal, and also shows a part on the sealing portion side of the incandescent lamp.
As shown in FIGS. 5A to 5N, all the plate-like terminals 7 are connected to the connecting portion 71 with the external lead rod 6 protruding from the sealing portion 4, and the power feeding fixing portion 73 is sealed. It is provided at a position facing the portion 4.
Specifically, in FIGS. 5A to 5J, (l), and (m), the power feeding fixing portion 73 is provided at a position facing the wide sealing surface 41 of the sealing portion 4. 5 (k) and 5 (n), the power feeding fixing portion 73 is provided at a position facing the narrow sealing surface 42 of the sealing portion 4.
Further, a screw fixing through-hole 70 or a notch 700 is formed in the power supply fixing portion 73 so as to spatially overlap the sealing portion 4.
As a result, the incandescent lamp 1 using the plate-like terminal 7 shown in FIG. 5 can efficiently form an effective heat generation region across the plate-like terminals formed at both ends of the incandescent lamp.

本発明の白熱ランプの説明図である。It is explanatory drawing of the incandescent lamp of this invention. 本発明の白熱ランプの一端側部分と本発明の加熱ユニットの説明図である。It is explanatory drawing of the one end side part of the incandescent lamp of this invention, and the heating unit of this invention. 本発明の加熱ユニットの説明図である。It is explanatory drawing of the heating unit of this invention. 本発明の白熱ランプの板状端子の説明図である。It is explanatory drawing of the plate-shaped terminal of the incandescent lamp of this invention. 本発明の白熱ランプの他の実施例の説明図である。It is explanatory drawing of the other Example of the incandescent lamp of this invention. 従来の白熱ランプの説明図である。It is explanatory drawing of the conventional incandescent lamp. 従来の加熱ユニットの説明図である。It is explanatory drawing of the conventional heating unit.

符号の説明Explanation of symbols

1 白熱ランプ
2 発光管
3 フィラメント
4 封止部
41 封止面
5 金属箔
6 外部リード棒
7 板状端子
70 貫通孔
71 接続部
72 中継部
73 給電固定部
T ランプ取付部材
T1 壁部
R 加熱ローラ
DESCRIPTION OF SYMBOLS 1 Incandescent lamp 2 Arc tube 3 Filament 4 Sealing part 41 Sealing surface 5 Metal foil 6 External lead rod 7 Plate terminal 70 Through-hole 71 Connection part 72 Relay part 73 Feeding fixing part T Lamp mounting member T1 Wall part R Heating roller

Claims (2)

管型の発光管の管軸に沿ってフィラメントが配置され、発光管の両端の圧潰された封止部から突出する外部リード棒に導電性の板状端子が接続された白熱ランプにおいて、
前記板状端子は、前記外部リード棒と接続される接続部と、当該接続部に続き発光管の管軸から離間する方向に伸びる中継部と、当該中継部に続き封止部と対向する位置に設けられた給電固定部を有し、
前記給電固定部は、前記封止部の幅広の封止面と対向する位置に形成され、当該給電固定部を含む面と前記封止部の幅広の封止面を含む面が平行になっており、
前記給電固定部には、ビス止め用孔または切り欠きが形成されていることを特徴とする白熱ランプ。
In an incandescent lamp in which a filament is arranged along the tube axis of a tube-type arc tube, and a conductive plate-like terminal is connected to external lead rods protruding from the crushed sealing portions at both ends of the arc tube,
The plate-like terminal is connected to the external lead rod, connected to the connecting portion, extends in a direction away from the tube axis of the arc tube, and is positioned to face the sealing portion following the connecting portion. Having a power supply fixing part provided in
The power feeding fixing portion is formed at a position facing the wide sealing surface of the sealing portion, and a surface including the power feeding fixing portion and a surface including the wide sealing surface of the sealing portion are parallel to each other. And
An incandescent lamp characterized in that a screw fixing hole or notch is formed in the power supply fixing portion .
管型の発光管の管軸に沿ってフィラメントが配置され、発光管の両端の圧潰された封止部から突出する外部リード棒に導電性の板状端子が接続された白熱ランプと、
前記白熱ランプが内蔵される円筒状の加熱ローラと、
前記加熱ローラの両端開口の近傍に設けられたランプ取付部材と、
よりなる加熱ユニットにおいて、
前記板状端子は、前記外部リード棒と接続される接続部と、当該接続部に続き発光管の管軸から離間する方向に伸びる中継部と、当該中継部に続き封止部と対向する位置に設けられた給電固定部を有し、
前記給電固定部は、前記封止部の幅広の封止面と対向する位置に形成され、当該給電固定部を含む面と前記封止部の幅広の封止面を含む面が平行になっており、
前記給電固定部には、ビス止め用孔または切り欠きが形成されており、
前記ランプ取付部材は、当該白熱ランプの封止部を受容する空間を形成するための壁部を有し、
前記給電固定部のビス止め用孔または切り欠きにビスを貫通させて、当該給電固定部と前記壁部が対向した状態で固定されていることを特徴とする加熱ユニット。
An incandescent lamp in which a filament is arranged along the tube axis of a tube-type arc tube, and a conductive plate-like terminal is connected to an external lead rod protruding from a crushed seal at both ends of the arc tube;
A cylindrical heating roller containing the incandescent lamp;
A lamp mounting member provided in the vicinity of both end openings of the heating roller;
A heating unit comprising:
The plate-like terminal is connected to the external lead rod, connected to the connecting portion, extends in a direction away from the tube axis of the arc tube, and is positioned to face the sealing portion following the connecting portion. Having a power supply fixing part provided in
The power feeding fixing portion is formed at a position facing the wide sealing surface of the sealing portion, and a surface including the power feeding fixing portion and a surface including the wide sealing surface of the sealing portion are parallel to each other. And
A screw fixing hole or notch is formed in the power supply fixing portion,
The lamp mounting member has a wall portion for forming a space for receiving the sealing portion of the incandescent lamp,
A heating unit, wherein a screw is passed through a screw fixing hole or notch of the power supply fixing portion, and the power supply fixing portion and the wall portion are fixed in a facing state.
JP2005051033A 2005-02-25 2005-02-25 Incandescent lamp and heating unit Active JP4475141B2 (en)

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