JP6904008B2

JP6904008B2 - Fixing device

Info

Publication number: JP6904008B2
Application number: JP2017070002A
Authority: JP
Inventors: 達也古山
Original assignee: Brother Industries Ltd
Current assignee: Brother Industries Ltd
Priority date: 2017-03-31
Filing date: 2017-03-31
Publication date: 2021-07-14
Anticipated expiration: 2037-03-31
Also published as: JP2018173460A

Description

本発明は、定着装置に関する。 The present invention relates to a fixing device.

従来、画像形成装置に備えられる定着装置において、複数のヒーターを備える定着装置が知られている。例えば、定着装置は、第１ヒーターと、第２ヒーターと、端子部材とを備える。端子部材には、第１ヒーターのリードと、第２ヒーターのリードとが接触する。端子部材は、ネジにより、定着装置のフレームに固定される（下記特許文献１参照。）。 Conventionally, as a fixing device provided in an image forming device, a fixing device including a plurality of heaters is known. For example, the fixing device includes a first heater, a second heater, and a terminal member. The lead of the first heater and the lead of the second heater come into contact with the terminal member. The terminal member is fixed to the frame of the fixing device by a screw (see Patent Document 1 below).

特開２０１１−１１２７９６号公報Japanese Unexamined Patent Publication No. 2011-112996

しかし、上記した特許文献１に記載の定着装置では、ネジにより、端子部材をフレームに対して押さえている。そのため、端子部材をフレームに対して安定に押さえることを考慮すると、ネジの径を小さくすることが困難である。そのため、ネジが挿入される穴を小さくすることも困難であり、端子部材の小型化を図ることが困難である。 However, in the fixing device described in Patent Document 1 described above, the terminal member is pressed against the frame by a screw. Therefore, it is difficult to reduce the diameter of the screw in consideration of stably pressing the terminal member with respect to the frame. Therefore, it is difficult to reduce the size of the hole into which the screw is inserted, and it is difficult to reduce the size of the terminal member.

そこで、本開示の目的は、端子部材の小型化や、端子部材の設計の自由度の向上を図ることができる定着装置を提供することにある。 Therefore, an object of the present disclosure is to provide a fixing device capable of downsizing the terminal member and improving the degree of freedom in designing the terminal member.

本発明の定着装置は、第１ヒーターと、第２ヒーターと、端子部材と、支持フレームと、押さえ部材とを備える。第１ヒーターは、第１ガラス管と、第１発熱体と、第１リードピンとを有する。第１発熱体は、第１ガラス管の内部に位置する。第１リードピンは、第１発熱体に電気的に接続される。第１リードピンは、第１ガラス管の端部から突出する。第２ヒーターは、第２方向において、第１ヒーターと並ぶ。第２方向は、第１ガラス管が延びる第１方向と直交する。第２ヒーターは、第２ガラス管と、第２発熱体と、第２リードピンとを有する。第２ガラス管は、第１方向に延びる。第２発熱体は、第２ガラス管の内部に位置する。第２リードピンは、第２発熱体に電気的に接続される。第２リードピンは、第２ガラス管の端部から突出する。端子部材は、第１リードピンおよび第２リードピンに電気的に接続される。端子部材には、第１リードピンおよび第２リードピンが固定されている。端子部材は、板形状を有する。端子部材は、貫通穴を有する。支持フレームは、端子部材の第１面を支持する。支持フレームは、貫通穴に挿入される突起を有する。押さえ部材は、端子部材の第１面の反対面である第２面を押さえる。押さえ部材は、端子部材に対して支持フレームの反対側に位置する。 The fixing device of the present invention includes a first heater, a second heater, a terminal member, a support frame, and a pressing member. The first heater has a first glass tube, a first heating element, and a first lead pin. The first heating element is located inside the first glass tube. The first lead pin is electrically connected to the first heating element. The first lead pin projects from the end of the first glass tube. The second heater is aligned with the first heater in the second direction. The second direction is orthogonal to the first direction in which the first glass tube extends. The second heater has a second glass tube, a second heating element, and a second lead pin. The second glass tube extends in the first direction. The second heating element is located inside the second glass tube. The second lead pin is electrically connected to the second heating element. The second lead pin projects from the end of the second glass tube. The terminal member is electrically connected to the first lead pin and the second lead pin. A first lead pin and a second lead pin are fixed to the terminal member. The terminal member has a plate shape. The terminal member has a through hole. The support frame supports the first surface of the terminal member. The support frame has protrusions that are inserted into the through holes. The pressing member presses the second surface, which is the opposite surface of the first surface of the terminal member. The pressing member is located on the opposite side of the support frame with respect to the terminal member.

このような構成によれば、端子部材は、貫通穴に支持フレームの突起が挿入されることによって、支持フレームに対して位置決めされている。この状態で、端子部材は、押さえ部材によって、支持フレームに対して押えられる。 According to such a configuration, the terminal member is positioned with respect to the support frame by inserting the protrusion of the support frame into the through hole. In this state, the terminal member is pressed against the support frame by the pressing member.

そのため、端子部材にネジが挿入される穴を設けて、端子部材を支持フレームに対してネジで固定する場合に比べて、端子部材における貫通穴が占める面積を低減することができる。 Therefore, the area occupied by the through hole in the terminal member can be reduced as compared with the case where the terminal member is provided with a hole into which the screw is inserted and the terminal member is fixed to the support frame with the screw.

その結果、端子部材の小型化や、端子部材の設計の自由度の向上を図ることができる。 As a result, it is possible to reduce the size of the terminal member and improve the degree of freedom in designing the terminal member.

本発明の定着装置によれば、端子部材の小型化や、端子部材の設計の自由度の向上を図ることができる。 According to the fixing device of the present invention, it is possible to reduce the size of the terminal member and improve the degree of freedom in designing the terminal member.

図１は、画像形成装置の概略構成図である。FIG. 1 is a schematic configuration diagram of an image forming apparatus. 図２は、本発明の定着装置を示し、図１のＡ−Ａ線に沿う断面図である。FIG. 2 shows the fixing device of the present invention and is a cross-sectional view taken along the line AA of FIG. 図３は、図２のＢ−Ｂ線に沿う断面図である。FIG. 3 is a cross-sectional view taken along the line BB of FIG. 図４Ａは、図３に示す押さえ部材の斜視図である。図４Ｂは、図３に示す押さえ部材を端子部材側から見た平面図である。FIG. 4A is a perspective view of the pressing member shown in FIG. FIG. 4B is a plan view of the pressing member shown in FIG. 3 as viewed from the terminal member side. 図５Ａは、第２実施形態を説明する説明図である。図５Ｂは、図５ＡのＣ−Ｃ線に沿う断面図である。FIG. 5A is an explanatory diagram illustrating a second embodiment. FIG. 5B is a cross-sectional view taken along the line CC of FIG. 5A. 図６は、第３実施形態を説明する説明図である。FIG. 6 is an explanatory diagram illustrating a third embodiment. 図７は、第４実施形態を説明する説明図である。FIG. 7 is an explanatory diagram illustrating a fourth embodiment.

１．画像形成装置の概略
本発明の定着装置１は、図１に示すように、画像形成装置１００に設けられる。以下、画像形成装置１００の概略について説明する。 1. 1. Outline of Image Forming Device The fixing device 1 of the present invention is provided in the image forming device 100 as shown in FIG. Hereinafter, the outline of the image forming apparatus 100 will be described.

画像形成装置１００は、感光ドラム１０１と、帯電器１０２と、レーザースキャンユニット１０３と、現像ローラ１０４と、転写ローラ１０５と、定着装置１と、給紙部１０６と、給紙トレイ１０７と、排紙トレイ１０８とを備える。 The image forming apparatus 100 includes a photosensitive drum 101, a charger 102, a laser scan unit 103, a developing roller 104, a transfer roller 105, a fixing device 1, a paper feeding unit 106, a paper feeding tray 107, and an ejection device. A paper tray 108 is provided.

帯電器１０２は、感光ドラム１０１の表面を帯電する。レーザースキャンユニット１０３は、帯電器１０２によって帯電された感光ドラム１０１の表面を露光する。これにより、感光ドラム１０１の表面には、静電潜像が形成される。現像ローラ１０４は、静電潜像が形成された感光ドラム１０１の表面にトナーを供給する。これにより、感光ドラム１０１の表面には、トナー像が形成される。給紙部１０６は、給紙トレイ１０７内の用紙を、感光ドラム１０１と転写ローラ１０５との間に供給する。転写ローラ１０５は、感光ドラム１０１の表面に形成されたトナー像を用紙に転写する。定着装置１は、トナー像が転写された用紙を加熱および加圧して、用紙にトナー像を定着させる。定着装置１を通過した用紙は、排紙トレイ１０８に排紙される。 The charger 102 charges the surface of the photosensitive drum 101. The laser scan unit 103 exposes the surface of the photosensitive drum 101 charged by the charger 102. As a result, an electrostatic latent image is formed on the surface of the photosensitive drum 101. The developing roller 104 supplies toner to the surface of the photosensitive drum 101 on which the electrostatic latent image is formed. As a result, a toner image is formed on the surface of the photosensitive drum 101. The paper feed unit 106 supplies the paper in the paper feed tray 107 between the photosensitive drum 101 and the transfer roller 105. The transfer roller 105 transfers the toner image formed on the surface of the photosensitive drum 101 to the paper. The fixing device 1 heats and pressurizes the paper on which the toner image is transferred to fix the toner image on the paper. The paper that has passed through the fixing device 1 is discharged to the output tray 108.

２．定着装置の詳細
図１から図３に示すように、定着装置１は、加熱ローラ２と、加圧ローラ３と、支持部材の一例としての支持フレーム４と、第１ヒーター５Ａと、第２ヒーター５Ｂと、端子部材６と、当接部材の一例としての押さえ部材７と、ネジ８とを備える。 2. Details of the Fixing Device As shown in FIGS. 1 to 3, the fixing device 1 includes a heating roller 2, a pressure roller 3, a support frame 4 as an example of a support member, a first heater 5A, and a second heater. It includes 5B, a terminal member 6, a pressing member 7 as an example of a contact member, and a screw 8.

２．１加熱ローラ
図１に示すように、加熱ローラ２は、トナー像が転写された用紙が加熱ローラ２と加圧ローラ３との間を通過するときに、その用紙を加熱する。加熱ローラ２は、第１方向に延びる回転軸線について回転可能である。 2.1 Heating roller As shown in FIG. 1, the heating roller 2 heats the paper on which the toner image is transferred when it passes between the heating roller 2 and the pressure roller 3. The heating roller 2 is rotatable about a rotation axis extending in the first direction.

２．２加圧ローラ
図１に示すように、加圧ローラ３は、トナー像が転写された用紙が加熱ローラ２と加圧ローラ３との間を通過するときに、その用紙を加圧する。加圧ローラ３は、加熱ローラ２と接触する。加圧ローラ３は、第１方向に延びる回転軸線について回転可能である。 2.2 Pressurizing roller As shown in FIG. 1, the pressurizing roller 3 pressurizes the paper on which the toner image is transferred when it passes between the heating roller 2 and the pressurizing roller 3. The pressurizing roller 3 comes into contact with the heating roller 2. The pressurizing roller 3 is rotatable about a rotation axis extending in the first direction.

２．３支持フレーム
図２に示すように、支持フレーム４は、定着装置１の外装を構成するフレームである。支持フレーム４は、加熱ローラ２および加圧ローラ３を収容する。支持フレーム４は、第１方向に延びる。支持フレーム４は、第１方向において、一端部４Ａと、他端部４Ｂとを有する。他端部４Ｂは、第１方向において、一端部４Ａから離れて位置する。支持フレーム４は、端子部材６を支持する。詳しくは、支持フレーム４の一端部４Ａは、端子部材６を支持する。図３に示すように、支持フレーム４は、端子部材６の第１面６Ａを支持する。言い換えると、支持フレーム４は、端子部材６の第１面６Ａに接触する。支持フレーム４は、突起１０を有する。 2.3 Support frame As shown in FIG. 2, the support frame 4 is a frame constituting the exterior of the fixing device 1. The support frame 4 accommodates the heating roller 2 and the pressurizing roller 3. The support frame 4 extends in the first direction. The support frame 4 has one end 4A and the other end 4B in the first direction. The other end 4B is located away from the one end 4A in the first direction. The support frame 4 supports the terminal member 6. Specifically, one end 4A of the support frame 4 supports the terminal member 6. As shown in FIG. 3, the support frame 4 supports the first surface 6A of the terminal member 6. In other words, the support frame 4 comes into contact with the first surface 6A of the terminal member 6. The support frame 4 has a protrusion 10.

突起１０は、端子部材６の第１面６Ａと交差する方向に延びる。好ましくは、突起１０は、端子部材６の第１面６Ａと直交する方向に延びる。突起１０は、第３方向に沿って延びる。第３方向は、端子部材６の厚み方向である。第３方向は、第１方向、および、後述する第２方向の両方と交差する方向に延びる。好ましくは、第３方向は、第１方向、および、後述する第２方向の両方と直交する方向に延びる。突起１０は、後述する端子部材６の貫通穴３２に挿入される。言い換えると、突起１０は、後述する端子部材６の貫通穴３２に嵌まる。 The protrusion 10 extends in a direction intersecting the first surface 6A of the terminal member 6. Preferably, the protrusion 10 extends in a direction orthogonal to the first surface 6A of the terminal member 6. The protrusion 10 extends along a third direction. The third direction is the thickness direction of the terminal member 6. The third direction extends in a direction that intersects both the first direction and the second direction described later. Preferably, the third direction extends in a direction orthogonal to both the first direction and the second direction described below. The protrusion 10 is inserted into the through hole 32 of the terminal member 6, which will be described later. In other words, the protrusion 10 fits into the through hole 32 of the terminal member 6 described later.

２．４第１ヒーター
図２に示すように、第１ヒーター５Ａは、加熱ローラ２を加熱する。第１ヒーター５Ａは、ハロゲンヒーターである。第１ヒーター５Ａは、加熱ローラ２の内部に位置する。第１ヒーター５Ａは、第１方向に延びる。第１ヒーター５Ａは、第１ガラス管１１と、第１発熱体１２と、第１リード部の一例としての第１リードピン１３とを有する。 2.4 First heater As shown in FIG. 2, the first heater 5A heats the heating roller 2. The first heater 5A is a halogen heater. The first heater 5A is located inside the heating roller 2. The first heater 5A extends in the first direction. The first heater 5A has a first glass tube 11, a first heating element 12, and a first lead pin 13 as an example of a first lead portion.

第１ガラス管１１は、内部に第１発熱体１２を収容する。第１ガラス管１１は、第１方向に延びる。第１ガラス管１１は、第１方向において、一端部１１Ａを有する。なお、第１ガラス管１１の一端部１１Ａは、実際には、矩形状に潰されたピンチシール部であるが、本実施形態では、その形状を省略している。 The first glass tube 11 houses the first heating element 12 inside. The first glass tube 11 extends in the first direction. The first glass tube 11 has one end 11A in the first direction. The one end portion 11A of the first glass tube 11 is actually a pinch seal portion crushed into a rectangular shape, but in the present embodiment, the shape is omitted.

第１発熱体１２は、第１ガラス管１１の内部に位置する。第１発熱体１２は、フィラメントである。第１発熱体１２は、第１方向に延びる。 The first heating element 12 is located inside the first glass tube 11. The first heating element 12 is a filament. The first heating element 12 extends in the first direction.

第１リードピン１３は、第１発熱体１２に電気的に接続される。第１リードピン１３は、第１ガラス管１１の一端部１１Ａから突出する。第１リードピン１３は、第１方向に延びる。 The first lead pin 13 is electrically connected to the first heating element 12. The first lead pin 13 projects from one end 11A of the first glass tube 11. The first lead pin 13 extends in the first direction.

２．５第２ヒーター
図２に示すように、第２ヒーター５Ｂは、第１ヒーター５Ａとともに、加熱ローラ２を加熱する。第２ヒーター５Ｂは、第１ヒーター５Ａと発熱領域が異なるハロゲンヒーターである。第２ヒーター５Ｂは、加熱ローラ２の内部に位置する。第２ヒーター５Ｂは、第１方向に延びる。第２ヒーター５Ｂは、第２方向において、第１ヒーター５Ａと並ぶ。第２方向は、第１方向と交差する。好ましくは、第２方向は、第１方向と直交する。第２ヒーター５Ｂは、第２ガラス管２１と、第２発熱体２２と、第２リード部の一例としての第２リードピン２３とを有する。 2.5 Second heater As shown in FIG. 2, the second heater 5B heats the heating roller 2 together with the first heater 5A. The second heater 5B is a halogen heater having a heat generation region different from that of the first heater 5A. The second heater 5B is located inside the heating roller 2. The second heater 5B extends in the first direction. The second heater 5B is aligned with the first heater 5A in the second direction. The second direction intersects the first direction. Preferably, the second direction is orthogonal to the first direction. The second heater 5B has a second glass tube 21, a second heating element 22, and a second lead pin 23 as an example of the second lead portion.

第２ガラス管２１は、内部に第２発熱体２２を収容する。第２ガラス管２１は、第１方向に延びる。第２ガラス管２１は、第１方向において、一端部２１Ａを有する。なお、第２ガラス管１１の一端部２１Ａは、実際には、矩形状に潰されたピンチシール部であるが、本実施形態では、その形状を省略している。 The second glass tube 21 houses the second heating element 22 inside. The second glass tube 21 extends in the first direction. The second glass tube 21 has one end 21A in the first direction. The one end portion 21A of the second glass tube 11 is actually a pinch seal portion crushed into a rectangular shape, but in the present embodiment, the shape is omitted.

第２発熱体２２は、第２ガラス管２１の内部に位置する。第２発熱体２２は、フィラメントである。第２発熱体２２は、第１方向に延びる。 The second heating element 22 is located inside the second glass tube 21. The second heating element 22 is a filament. The second heating element 22 extends in the first direction.

第２リードピン２３は、第２発熱体２２に電気的に接続される。第２リードピン２３は、第２ガラス管２１の端部から突出する。第２リードピン２３は、第１方向に延びる。 The second lead pin 23 is electrically connected to the second heating element 22. The second lead pin 23 projects from the end of the second glass tube 21. The second lead pin 23 extends in the first direction.

２．６端子部材
図２に示すように、端子部材６は、第１ヒーター５Ａおよび第２ヒーター５Ｂに電力を供給するために設けられる。端子部材６は、第１リードピン１３および第２リードピン２３に電気的に接続される。また、端子部材６は、図示しない外部のコネクタに電気的に接続される。端子部材６は、金属から作られる。端子部材６は、板形状を有する。端子部材６には、第１リードピン１３および第２リードピン２３が固定される。詳しくは、第１リードピン１３および第２リードピン２３は、端子部材６に溶接される。第１リードピン１３は、端子部材６に固定された状態で、第２方向において、後述する貫通穴３２に対して一方側に位置する。第２リードピン２３は、端子部材６に固定された状態で、第２方向において、貫通穴３２に対して他方側に位置する。端子部材６は、穴の一例としての貫通穴３２を有する。また、端子部材６は、接続部３１を備える。 2.6 Terminal member As shown in FIG. 2, the terminal member 6 is provided to supply electric power to the first heater 5A and the second heater 5B. The terminal member 6 is electrically connected to the first lead pin 13 and the second lead pin 23. Further, the terminal member 6 is electrically connected to an external connector (not shown). The terminal member 6 is made of metal. The terminal member 6 has a plate shape. The first lead pin 13 and the second lead pin 23 are fixed to the terminal member 6. Specifically, the first lead pin 13 and the second lead pin 23 are welded to the terminal member 6. The first lead pin 13 is located on one side of the through hole 32 described later in the second direction in a state of being fixed to the terminal member 6. The second lead pin 23 is located on the opposite side of the through hole 32 in the second direction while being fixed to the terminal member 6. The terminal member 6 has a through hole 32 as an example of the hole. Further, the terminal member 6 includes a connecting portion 31.

貫通穴３２には、支持フレーム４の突起１０（図３参照）が嵌まる。これにより、端子部材６は、支持フレーム４に対して、第１方向および第２方向において位置決めされる。貫通穴３２は、第１リードピン１３および第２リードピン２３が溶接された部分Ｗから離れて位置する。より詳しくは、貫通穴３２は、第１方向において、第１リードピン１３の先端Ｅ１に対して、第１ガラス管１１とは反対側に位置し、かつ、第２リードピン２３の先端Ｅ２に対して、第２ガラス管２１とは反対側に位置する。また、貫通穴３２は、第１方向において、第１リードピン１３の先端Ｅ１に対して、第１発熱体１２とは反対側に位置し、かつ、第２リードピン２３の先端Ｅ２に対して、第２発熱体２２とは反対側に位置する。また、貫通穴３２は、第２方向において、第１ガラス管１１の中心軸線Ａ１と、第２ガラス管２１の中心軸線Ａ２との間に位置する。貫通穴３２の径は、ネジ８の軸８Ａ（図３参照）の径よりも小さい。 The protrusion 10 (see FIG. 3) of the support frame 4 fits into the through hole 32. As a result, the terminal member 6 is positioned with respect to the support frame 4 in the first direction and the second direction. The through hole 32 is located away from the welded portion W of the first lead pin 13 and the second lead pin 23. More specifically, the through hole 32 is located on the opposite side of the first glass tube 11 with respect to the tip E1 of the first lead pin 13 in the first direction, and with respect to the tip E2 of the second lead pin 23. , Located on the opposite side of the second glass tube 21. Further, the through hole 32 is located on the side opposite to the first heating element 12 with respect to the tip E1 of the first lead pin 13 in the first direction, and is the second with respect to the tip E2 of the second lead pin 23. 2 Located on the opposite side of the heating element 22. Further, the through hole 32 is located between the central axis A1 of the first glass tube 11 and the central axis A2 of the second glass tube 21 in the second direction. The diameter of the through hole 32 is smaller than the diameter of the shaft 8A (see FIG. 3) of the screw 8.

接続部３１は、図示しない外部のコネクタに電気的に接続される。接続部３１は、第１方向において、貫通穴３２に対して、第１ヒーター５Ａおよび第２ヒーター５Ｂの反対側に位置する。 The connecting portion 31 is electrically connected to an external connector (not shown). The connecting portion 31 is located on the opposite side of the first heater 5A and the second heater 5B with respect to the through hole 32 in the first direction.

２．７押さえ部材
押さえ部材７は、図３に示すように、端子部材６を支持フレーム４に対して、突起１０が延びる方向において、位置決めする。詳しくは、押さえ部材７は、突起１０が延びる方向において、端子部材６の第１面６Ａの反対面である第２面６Ｂを押さえる。押さえ部材７は、突起１０が延びる方向において、端子部材６に対して支持フレーム４の反対側に位置する。押さえ部材７は、端子部材６を覆う。押さえ部材７は、端子部材６が、突起１０が延びる方向において、支持フレーム４から離れる方向に移動したときに、端子部材６と当たる。図４Ａに示すように、押さえ部材７は、第２方向に延びる。第２方向は、第１ヒーター５Ａと第２ヒーター５Ｂとが並ぶ方向である。第２方向は、第１方向と交差する。好ましくは、第２方向は、第１方向と直交する。押さえ部材７は、ネジ８によって、支持フレーム４に固定される。図３および図４Ｂに示すように、押さえ部材７は、第１接触部４１と、第２接触部４２とを有する。また、押さえ部材７は、挿入穴４３を有する。 2.7 Pressing member As shown in FIG. 3, the pressing member 7 positions the terminal member 6 with respect to the support frame 4 in the direction in which the protrusion 10 extends. Specifically, the pressing member 7 presses the second surface 6B, which is the opposite surface of the first surface 6A of the terminal member 6, in the direction in which the protrusion 10 extends. The pressing member 7 is located on the opposite side of the support frame 4 with respect to the terminal member 6 in the direction in which the protrusion 10 extends. The pressing member 7 covers the terminal member 6. The pressing member 7 hits the terminal member 6 when the terminal member 6 moves away from the support frame 4 in the direction in which the protrusion 10 extends. As shown in FIG. 4A, the pressing member 7 extends in the second direction. The second direction is the direction in which the first heater 5A and the second heater 5B are lined up. The second direction intersects the first direction. Preferably, the second direction is orthogonal to the first direction. The pressing member 7 is fixed to the support frame 4 by the screws 8. As shown in FIGS. 3 and 4B, the pressing member 7 has a first contact portion 41 and a second contact portion 42. Further, the pressing member 7 has an insertion hole 43.

第１接触部４１は、端子部材６に接触する。詳しくは、第１接触部４１は、端子部材６の第２面６Ｂに接触する。第１接触部４１は、押さえ部材７から端子部材６に向かって突出する。第１接触部４１は、図２に示すように、第２方向において、貫通穴３２に対して一方側に位置する。 The first contact portion 41 comes into contact with the terminal member 6. Specifically, the first contact portion 41 contacts the second surface 6B of the terminal member 6. The first contact portion 41 projects from the pressing member 7 toward the terminal member 6. As shown in FIG. 2, the first contact portion 41 is located on one side of the through hole 32 in the second direction.

第２接触部４２は、図３および図４Ｂに示すように、端子部材６に接触する。詳しくは、第２接触部４２は、端子部材６の第２面６Ｂに接触する。第２接触部４２は、押さえ部材７から端子部材６に向かって突出する。第２接触部４２は、図２に示すように、第２方向において、第１接触部４１に対して間隔を隔てて位置する。第２接触部４２は、第２方向において、貫通穴３２に対して他方側に位置する。 The second contact portion 42 contacts the terminal member 6 as shown in FIGS. 3 and 4B. Specifically, the second contact portion 42 contacts the second surface 6B of the terminal member 6. The second contact portion 42 projects from the pressing member 7 toward the terminal member 6. As shown in FIG. 2, the second contact portion 42 is located at a distance from the first contact portion 41 in the second direction. The second contact portion 42 is located on the opposite side of the through hole 32 in the second direction.

図３に示すように、挿入穴４３には、後述するネジ８の軸８Ａが挿入される。挿入穴４３は、端子部材６の外側に位置する。挿入穴４３の径は、端子部材６の貫通穴３２の径よりも大きい。 As shown in FIG. 3, the shaft 8A of the screw 8 described later is inserted into the insertion hole 43. The insertion hole 43 is located outside the terminal member 6. The diameter of the insertion hole 43 is larger than the diameter of the through hole 32 of the terminal member 6.

２．８ネジ
図３に示すように、ネジ８は、押さえ部材７を支持フレーム４に対して固定する。ネジ８は、軸８Ａと、頭８Ｂとを有する。軸８Ａの径は、端子部材６の貫通穴３２の径よりも大きい。頭８Ｂの径は、軸８Ａの径よりも大きく、かつ、挿入穴４３の径よりも大きい。 2.8 Screws As shown in FIG. 3, the screws 8 fix the pressing member 7 to the support frame 4. The screw 8 has a shaft 8A and a head 8B. The diameter of the shaft 8A is larger than the diameter of the through hole 32 of the terminal member 6. The diameter of the head 8B is larger than the diameter of the shaft 8A and larger than the diameter of the insertion hole 43.

３．作用効果
定着装置１によれば、図３に示すように、端子部材６は、貫通穴３２に支持フレーム４の突起１０が挿入されることによって、支持フレーム４に対して位置決めされている。この状態で、端子部材６は、押さえ部材７によって、支持フレーム４に対して押えられる。 3. 3. Action effect According to the fixing device 1, as shown in FIG. 3, the terminal member 6 is positioned with respect to the support frame 4 by inserting the protrusion 10 of the support frame 4 into the through hole 32. In this state, the terminal member 6 is pressed against the support frame 4 by the pressing member 7.

そのため、端子部材６にネジが挿入される穴を設けて、端子部材６を支持フレーム４に対してネジで固定する場合に比べて、端子部材６における貫通穴３２が占める面積を低減することができる。 Therefore, the area occupied by the through hole 32 in the terminal member 6 can be reduced as compared with the case where the terminal member 6 is provided with a hole into which the screw is inserted and the terminal member 6 is fixed to the support frame 4 with the screw. it can.

その結果、端子部材６の小型化や、端子部材６の設計の自由度の向上を図ることができる。 As a result, it is possible to reduce the size of the terminal member 6 and improve the degree of freedom in designing the terminal member 6.

４．第２実施形態
図５Ａおよび図５Ｂを参照して、第２実施形態について説明する。第２実施形態において、上記した第１実施形態と同様の部材には同様の符号を付し、その説明を省略する。 4. Second Embodiment The second embodiment will be described with reference to FIGS. 5A and 5B. In the second embodiment, the same members as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

第２実施形態では、押さえ部材７は、第１接触部５１と、第２接触部５２と、第３接触部５３とを有する。第１接触部５１、第２接触部５２および第３接触部５３は、第２方向において、互いに間隔を隔てて並ぶ。 In the second embodiment, the pressing member 7 has a first contact portion 51, a second contact portion 52, and a third contact portion 53. The first contact portion 51, the second contact portion 52, and the third contact portion 53 are arranged at intervals from each other in the second direction.

第１接触部５１は、端子部材６に接触する。第１接触部５１は、端子部材６の第２面６Ｂに接触する。第１接触部５１は、押さえ部材７から端子部材６に向かって突出する。第１接触部５１は、第２方向において、第１リードピン１３と第２リードピン２３との間に位置する。 The first contact portion 51 contacts the terminal member 6. The first contact portion 51 contacts the second surface 6B of the terminal member 6. The first contact portion 51 projects from the pressing member 7 toward the terminal member 6. The first contact portion 51 is located between the first lead pin 13 and the second lead pin 23 in the second direction.

第２接触部５２は、端子部材６に接触する。第２接触部５２は、端子部材６の第２面６Ｂに接触する。第２接触部５２は、押さえ部材７から端子部材６に向かって突出する。第２接触部５２は、第２方向において、第１リードピン１３に対して第１接触部５１の反対側に位置する。 The second contact portion 52 comes into contact with the terminal member 6. The second contact portion 52 contacts the second surface 6B of the terminal member 6. The second contact portion 52 projects from the pressing member 7 toward the terminal member 6. The second contact portion 52 is located on the opposite side of the first contact portion 51 with respect to the first lead pin 13 in the second direction.

第３接触部５３は、端子部材６に接触する。第３接触部５３は、端子部材６の第２面６Ｂに接触する。第３接触部５３は、押さえ部材７から端子部材６に向かって突出する。第３接触部５３は、第２方向において、第２リードピン２３に対して第１接触部５１の反対側に位置する。 The third contact portion 53 comes into contact with the terminal member 6. The third contact portion 53 contacts the second surface 6B of the terminal member 6. The third contact portion 53 projects from the pressing member 7 toward the terminal member 6. The third contact portion 53 is located on the opposite side of the first contact portion 51 with respect to the second lead pin 23 in the second direction.

第２実施形態においても、上記した第１実施形態と同様の作用効果を得ることができる。 Also in the second embodiment, the same effects as those in the first embodiment described above can be obtained.

５．第３実施形態
図６を参照して、第３実施形態について説明する。第３実施形態において、上記した第１実施形態と同様の部材には同様の符号を付し、その説明を省略する。 5. Third Embodiment The third embodiment will be described with reference to FIG. In the third embodiment, the same members as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

第３実施形態では、押さえ部材７は、接触部６１を有する。 In the third embodiment, the pressing member 7 has a contact portion 61.

接触部６１は、端子部材６に接触する。接触部６１は、端子部材６の第２面６Ｂ（図３参照）に接触する。接触部６１は、押さえ部材７から端子部材６に向かって突出する。接触部６１は、第１方向において、第１リードピン１３と貫通穴３２との間に位置し、かつ、第２リードピン２３と貫通穴３２との間に位置する。 The contact portion 61 contacts the terminal member 6. The contact portion 61 contacts the second surface 6B (see FIG. 3) of the terminal member 6. The contact portion 61 projects from the pressing member 7 toward the terminal member 6. The contact portion 61 is located between the first lead pin 13 and the through hole 32 in the first direction, and is located between the second lead pin 23 and the through hole 32.

第３実施形態においても、上記した第１実施形態と同様の作用効果を得ることができる。 Also in the third embodiment, the same effects as those in the first embodiment described above can be obtained.

６．第４実施形態
図７を参照して、第４実施形態について説明する。第４実施形態において、上記した第１実施形態と同様の部材には同様の符号を付し、その説明を省略する。 6. Fourth Embodiment The fourth embodiment will be described with reference to FIG. 7. In the fourth embodiment, the same members as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

第４実施形態では、貫通穴７１は、端子部材６の周縁部に位置する。詳しくは、貫通穴７１は、第２方向において、第２ガラス管２１の中心軸線Ａ２に対して、第１ガラス管１１の中心軸線Ａ１の反対側に位置する。すなわち、貫通穴７１は、第２方向において、第１ガラス管１１の中心軸線Ａ１と、第２ガラス管２１の中心軸線Ａ２との間に位置しない。また、貫通穴７１は、第２方向において、押さえ部材７の接触部７２と並ぶ。 In the fourth embodiment, the through hole 71 is located at the peripheral edge of the terminal member 6. Specifically, the through hole 71 is located on the opposite side of the central axis A1 of the first glass tube 11 with respect to the central axis A2 of the second glass tube 21 in the second direction. That is, the through hole 71 is not located between the central axis A1 of the first glass tube 11 and the central axis A2 of the second glass tube 21 in the second direction. Further, the through hole 71 is aligned with the contact portion 72 of the pressing member 7 in the second direction.

第４実施形態においても、上記した第１実施形態と同様の作用効果を得ることができる。 Also in the fourth embodiment, the same effects as those in the first embodiment described above can be obtained.

７．変形例
貫通穴３２は、第２方向において、第１リードピン１３と、第２リードピン２３との間に位置してもよい。 7. Modification example The through hole 32 may be located between the first lead pin 13 and the second lead pin 23 in the second direction.

また、端子部材６は、突起１０が嵌まる部分を有していればよい。突起１０が嵌まる部分は、貫通穴３２でなくてもよい。端子部材６は、貫通穴３２の代わりに、例えば、切欠きや、貫通していない穴を有してもよい。 Further, the terminal member 6 may have a portion into which the protrusion 10 fits. The portion where the protrusion 10 fits does not have to be the through hole 32. Instead of the through hole 32, the terminal member 6 may have, for example, a notch or a hole that does not penetrate.

また、押さえ部材７を支持フレーム４に固定する手段は、ネジ８に限らない。押さえ部材７は、例えば、スナップフィットなどの手段により、支持フレーム４に固定されてもよい。 Further, the means for fixing the pressing member 7 to the support frame 4 is not limited to the screw 8. The pressing member 7 may be fixed to the support frame 4 by means such as snap-fitting.

１定着装置
４支持フレーム
５Ａ第１ヒーター
５Ｂ第２ヒーター
６端子部材
６Ａ第１面
６Ｂ第２面
７押さえ部材
１０突起
１１第１ガラス管
１２第１発熱体
１３第１リードピン
２１第２ガラス管
２２第２発熱体
２３第２リードピン
３２貫通穴
４１第１接触部
４２第２接触部
５１第１接触部
５２第２接触部
５３第３接触部
６１接触部
７１貫通穴
７２接触部
Ａ１中心軸線
Ａ２中心軸線
Ｅ１先端
Ｅ２先端
Ｗ溶着部分 1 Fixing device 4 Support frame 5A 1st heater 5B 2nd heater 6 Terminal member 6A 1st surface 6B 2nd surface 7 Holding member 10 Protrusion 11 1st glass tube 12 1st heating element 13 1st lead pin 21 2nd glass tube 22 2nd heating element 23 2nd lead pin 32 through hole 41 1st contact part 42 2nd contact part 51 1st contact part 52 2nd contact part 53 3rd contact part 61 contact part 71 through hole 72 contact part A1 center axis A2 center Axis E1 Tip E2 Tip W Welded part

Claims

A first glass tube, a first heating element located inside the first glass tube, and a first lead pin electrically connected to the first heating element, from the end of the first glass tube. A first heater with a protruding first lead pin and
In the second direction orthogonal to the first direction in which the first glass tube extends, it is a second heater along with the first heater, and inside the second glass tube extending in the first direction and the inside of the second glass tube. A second heater having a second heating element located, a second lead pin electrically connected to the second heating element, and a second lead pin protruding from the end of the second glass tube.
A terminal member electrically connected to the first lead pin and the second lead pin, the terminal member to which the first lead pin and the second lead pin are fixed, a terminal member having a plate shape, and penetrating. Terminal members with holes and
A support frame that supports the first surface of the terminal member and has a protrusion to be inserted into the through hole.
A pressing member that presses the second surface of the terminal member, which is the opposite surface of the first surface, and is located on the opposite side of the support frame with respect to the terminal member.
Bei to give a,
The holding member is
A first contact portion that comes into contact with the terminal member and is located on one side of the through hole in the second direction.
A second contact portion that comes into contact with the terminal member, and is a second contact portion located on the opposite side of the through hole in the second direction.
A fixing device, characterized in that it has.

A first glass tube, a first heating element located inside the first glass tube, and a first lead pin electrically connected to the first heating element, from the end of the first glass tube. A first heater with a protruding first lead pin and
In the second direction orthogonal to the first direction in which the first glass tube extends, it is a second heater along with the first heater, and inside the second glass tube extending in the first direction and the inside of the second glass tube. A second heater having a second heating element located, a second lead pin electrically connected to the second heating element, and a second lead pin protruding from the end of the second glass tube.
A terminal member electrically connected to the first lead pin and the second lead pin, the terminal member to which the first lead pin and the second lead pin are fixed, a terminal member having a plate shape, and penetrating. Terminal members with holes and
A support frame that supports the first surface of the terminal member and has a protrusion to be inserted into the through hole.
A pressing member that presses the second surface of the terminal member, which is the opposite surface of the first surface, and is located on the opposite side of the support frame with respect to the terminal member.
With
The holding member is
A first contact portion that comes into contact with the terminal member and is located between the first lead pin and the second lead pin in the second direction.
A second contact portion that comes into contact with the terminal member and is located on the opposite side of the first contact portion with respect to the first lead pin in the second direction.
A third contact portion that comes into contact with the terminal member, and is a third contact portion located on the opposite side of the first contact portion with respect to the second lead pin in the second direction.
A fixing device, characterized in that it has.

A first glass tube, a first heating element located inside the first glass tube, and a first lead pin electrically connected to the first heating element, from the end of the first glass tube. A first heater with a protruding first lead pin and
In the second direction orthogonal to the first direction in which the first glass tube extends, it is a second heater along with the first heater, and inside the second glass tube extending in the first direction and the inside of the second glass tube. A second heater having a second heating element located, a second lead pin electrically connected to the second heating element, and a second lead pin protruding from the end of the second glass tube.
A terminal member electrically connected to the first lead pin and the second lead pin, the terminal member to which the first lead pin and the second lead pin are fixed, a terminal member having a plate shape, and penetrating. Terminal members with holes and
A support frame that supports the first surface of the terminal member and has a protrusion to be inserted into the through hole.
A pressing member that presses the second surface of the terminal member, which is the opposite surface of the first surface, and is located on the opposite side of the support frame to the terminal member.
With
The holding member is
A contact portion that comes into contact with the terminal member, is located on the opposite side of the first glass tube with respect to the tip of the first lead pin in the first direction, and is located at the tip of the second lead pin. On the other hand, it has a contact portion located on the opposite side of the second glass tube.
A fixing device, characterized in that, in the second direction, the length of the contact portion is longer than the distance between the first lead pin and the second lead pin.

The first lead pin is located on one side of the through hole in the second direction.
The fixing device according to any one of claims 1 to 3, wherein the second lead pin is located on the opposite side of the through hole in the second direction.

The through hole in the second direction, and the central axis of the first glass tube, characterized in that located between the central axis of the second glass tube, one of claims 1 to 4 The fixing device according to one item.

The through hole is located on the side opposite to the first glass tube with respect to the tip of the first lead pin in the first direction, and the second glass with respect to the tip of the second lead pin. The fixing device according to any one of claims 1 to 5, wherein the fixing device is located on the opposite side of the pipe.

The contact portion, in the first direction, located between the first lead pin and the through hole, and characterized by the Turkey be positioned between the through hole and the second lead pin, The fixing device according to claim 3.

The fixing device according to claim 3, wherein the through hole is aligned with the contact portion in the second direction.

The first lead pin and the second lead pin are welded to the terminal member and
The fixing device according to any one of claims 1 to 8 , wherein the through hole is located away from the welded portion of the first lead pin and the second lead pin.

The fixing device according to any one of claims 1 to 3 , wherein the through hole is located between the first lead pin and the second lead pin in the second direction. ..

A first heater having a first heating element extending in the first direction and a first lead portion electrically connected to the first heating element.
In the second direction, it is a second heater along with the first heater, and has a second heating element extending in the first direction and a second lead portion electrically connected to the second heating element. With a heater
A terminal member that is electrically connected to the first lead portion and the second lead portion, and is a terminal member to which the first lead portion and the second lead portion are fixed, and is a notch or a hole. With a terminal member
A support member that supports the terminal member and has a notch or a protrusion that fits into the hole.
A contact member that covers the terminal member, which is a contact member located on the opposite side of the support member with respect to the terminal member, and the terminal when the terminal member moves away from the support member. e Bei a contact member configured to impinge the member,
The contact member is
A first contact portion that comes into contact with the terminal member, and the first contact portion located on one side of the notch or the hole in the second direction.
A second contact portion that comes into contact with the terminal member, and is a second contact portion located on the other side of the notch or the hole in the second direction.
A fixing device, characterized in that it has.

A first heater having a first heating element extending in the first direction and a first lead portion electrically connected to the first heating element.
In the second direction, it is a second heater along with the first heater, and has a second heating element extending in the first direction and a second lead portion electrically connected to the second heating element. With a heater
A terminal member that is electrically connected to the first lead portion and the second lead portion, and is a terminal member to which the first lead portion and the second lead portion are fixed, and is a notch or a hole. With a terminal member
A support member that supports the terminal member and has a notch or a protrusion that fits into the hole.
A contact member that covers the terminal member, which is a contact member located on the opposite side of the support member with respect to the terminal member, and the terminal when the terminal member moves away from the support member. With a contact member configured to hit the member
With
The contact member is
A first contact portion that comes into contact with the terminal member and is located between the first lead portion and the second lead portion in the second direction.
A second contact portion that comes into contact with the terminal member and is located on the opposite side of the first contact portion with respect to the first lead portion in the second direction.
A third contact portion that comes into contact with the terminal member and is a third contact portion located on the opposite side of the first contact portion with respect to the second lead portion in the second direction.
A fixing device, characterized in that it has.

A first heater having a first heating element extending in the first direction and a first lead portion electrically connected to the first heating element.
In the second direction, it is a second heater along with the first heater, and has a second heating element extending in the first direction and a second lead portion electrically connected to the second heating element. With a heater
A terminal member that is electrically connected to the first lead portion and the second lead portion, and is a terminal member to which the first lead portion and the second lead portion are fixed, and is a notch or a hole. With a terminal member
A support member that supports the terminal member and has a notch or a protrusion that fits into the hole.
A contact member that covers the terminal member, which is a contact member located on the opposite side of the support member with respect to the terminal member, and the terminal when the terminal member moves away from the support member. With a contact member configured to hit the member
With
The contact member is
A contact portion that comes into contact with the terminal member, is located on the side opposite to the first heating element with respect to the tip of the first lead portion in the first direction, and is a contact portion of the second lead portion. It has a contact portion located on the opposite side of the second heating element with respect to the tip, and has a contact portion.
A fixing device, characterized in that, in the second direction, the length of the contact portion is longer than the distance between the first lead portion and the second lead portion.

The first lead portion is located on one side of the notch or the hole in the second direction.
The second lead portion according to any one of claims 11 to 13, wherein the second lead portion is located on the other side of the notch or the hole in the second direction. Fixing device.

The notch or the hole is located on the opposite side of the first heating element with respect to the tip of the first lead portion in the first direction, and is located at the tip of the second lead portion. The fixing device according to any one of claims 11 to 14 , wherein the fixing device is located on the side opposite to the second heating element.

The contact portion is located between the first lead portion and the notch or the hole in the first direction, and the second lead portion and the notch or the hole. It characterized the Turkey be positioned between the fixing device according to claim 13.

13. The fixing device according to claim 13, wherein the notch or the hole is aligned with the contact portion in the second direction.

The first lead portion and the second lead portion are welded to the terminal member, and the first lead portion and the second lead portion are welded to the terminal member.
The notch, or the hole, is any one of claims 11 to 17 , characterized in that the first lead portion and the second lead portion are located apart from the welded portion. The fixing device described.

Any of claims 11 to 13, wherein the notch or the hole is located between the first lead portion and the second lead portion in the second direction. The fixing device according to one item.