JP2013112065A - Reclining device - Google Patents

Reclining device Download PDF

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JP2013112065A
JP2013112065A JP2011258026A JP2011258026A JP2013112065A JP 2013112065 A JP2013112065 A JP 2013112065A JP 2011258026 A JP2011258026 A JP 2011258026A JP 2011258026 A JP2011258026 A JP 2011258026A JP 2013112065 A JP2013112065 A JP 2013112065A
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sun gear
plate
wedge
shaped space
restriction
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Yasukazu Oki
靖和 沖
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Delta Kogyo Co Ltd
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Delta Kogyo Co Ltd
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Priority to JP2011258026A priority Critical patent/JP2013112065A/en
Priority to US13/679,240 priority patent/US8579756B2/en
Priority to EP12193667.8A priority patent/EP2596984A1/en
Priority to CN201210484063XA priority patent/CN103129420A/en
Publication of JP2013112065A publication Critical patent/JP2013112065A/en
Pending legal-status Critical Current

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  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a reclining device that makes internal teeth of a plate and a planetary gear hardly cause a rattle and enables a seat back to be reliably kept in a fixed state, even when a force is applied to the seat back.SOLUTION: An inner peripheral wall 50 of a first holding member 5a holding the planetary gear 3 and a wedge-shaped space section part 44 of a sun gear 4 make a wedge-shaped space 48 formed by being partitioned between the inner peripheral wall and the wedge-shaped space section part. When the first holding member 5a is turned with respect to the sun gear 4, a regulation member 7 arranged in the wedge-shaped space 48 regulates the rotation of the first holding member 5a with respect to the sun gear 4 by being urged by an urging member 8 in the direction of making an entry into a narrow part 48b of the wedge-shaped space 48.

Description

本発明は、自動車等のシートのリクライニング装置に関するものである。   The present invention relates to a reclining device for a seat such as an automobile.

従来から、自動車等のシートのリクライニング装置は知られており、例えば特許文献1に開示されたものがある。この特許文献1に開示された装置は、互いに同軸上で回動自在に支持され且つその対向する円孔内に内ギア部を有するベースプレート(第1プレート)及びアームプレート(第2プレート)と、これら両プレートの回動軸上に設けられた制御ギアと、この制御ギアの周囲でこの制御ギアと前記各プレートの内ギア部とに噛合した状態で配置され且つその軸心位置にボス部が突設されている複数個の遊星ギアと、これら各遊星ギアをそれぞれ所定の公転軌道位置で回動自在に保持する保持体とを備え、この保持体を、前記各遊星ギアのボス部にその回動を許容した状態で接し且つこれらの遊星ギアを前記各プレート円孔内の内ギア部に噛合させるように放射方向に付勢する形状をもってばね材により形成したものである。このようにして、両プレートの内歯と遊星ギアとがバックラッシ等によるがたつきを生じ難いものにし、ベースプレートとアームプレートとのがたつきを抑えるようにしている。   Conventionally, reclining devices for seats of automobiles and the like are known, and for example, there is one disclosed in Patent Document 1. The apparatus disclosed in Patent Document 1 is a base plate (first plate) and an arm plate (second plate) that are rotatably supported coaxially with each other and have internal gear portions in opposite circular holes, A control gear provided on the rotating shafts of these plates, and a boss portion disposed around the control gear in mesh with the control gear and the inner gear portion of each plate. A plurality of projecting planetary gears and a holding body that rotatably holds the planetary gears at predetermined revolving orbit positions, and the holding bodies are attached to the bosses of the planetary gears. It is formed of a spring material that has a shape that is in contact with rotation and allows the planetary gears to be urged in a radial direction so as to mesh with the inner gear portions in the plate circular holes. In this way, the internal teeth of the two plates and the planetary gears are less likely to cause rattling due to backlash or the like, and the rattling between the base plate and the arm plate is suppressed.

実開平5−1335号公報Japanese Utility Model Publication No.5-1335

しかしながら、特許文献1に記載のようなばね材からなる保持体で遊星ギアを放射方向に付勢しても、例えば保持体の付勢力以上の力がシ−トバックにかかると遊星ギアが保持体の付勢力に抗して径内側に移動して両プレートの内歯と遊星ギアとがたつきを生じる場合がある。その一方、保持体の付勢力を強くすると、遊星ギアの回動抵抗が大きくなってしまい、円滑に回動できなくなってしまう。従って、特許文献1に記載のようなばね材からなる保持体を用いた方法ではプレートの内歯と遊星ギアとのがたつきを十分に抑え難いという問題点がある。   However, even if the planetary gear is urged in the radial direction by a holding body made of a spring material as described in Patent Document 1, for example, if a force greater than the urging force of the holding body is applied to the seatback, the planetary gear is held by the holding body. In some cases, the inner teeth of the two plates and the planetary gears may rattle by moving inwardly against the urging force. On the other hand, if the urging force of the holding body is increased, the rotation resistance of the planetary gear increases and the rotation cannot be performed smoothly. Therefore, the method using the holding body made of a spring material as described in Patent Document 1 has a problem that it is difficult to sufficiently suppress the rattling between the internal teeth of the plate and the planetary gear.

又、特許文献1に記載のものにおいては、シ−トバックに繰り返し後傾倒方向の力がかかった状態が続くと、その力でプレートの内歯を遊星ギアが少しずつ徐々に転がり動く場合があり、その結果、シ−トバックがシートクッションに対して徐々に倒れ動いて固定状態に維持し難い場合がある。   Moreover, in the thing of patent document 1, if the state where the force of the tilting direction was applied to the seat back repeatedly is continued, the planetary gear may gradually roll the inner teeth of the plate little by little by the force. As a result, the seat back may gradually fall with respect to the seat cushion and be difficult to maintain in a fixed state.

本発明は、シ−トバックに力がかかった場合に、プレートの内歯と遊星ギアとのがたつきが生じ難く、シ−トバックを確実に固定状態に維持できるリクライニング装置の提供を目的とする。   An object of the present invention is to provide a reclining device in which rattling between the inner teeth of the plate and the planetary gear hardly occurs when force is applied to the seat back, and the seat back can be reliably maintained in a fixed state. .

上記課題を解決するため、本発明は、第1プレートと、前記第1プレートに対して回動可能な第2プレートと、前記第1プレート及び第2プレートの夫々に設けられた内歯に噛合した複数の遊星ギアと、前記遊星ギアと噛合した太陽ギアとを備えたリクライニング装置であって、前記遊星ギアを回動可能に保持するとともに、前記太陽ギアに対して回動可能に配設された内周壁を有する保持部材と、前記保持部材の太陽ギアに対する回動を規制する規制部材とを備え、前記太陽ギアは、前記保持部材の内周壁と対向した楔状空間区画部を備え、前記楔状空間区画部は、前記内周壁と当該楔状空間区画部とによってそれらの間に、幅広部と前記幅広部よりも幅狭な幅狭部とを有する楔状空間が区画形成されるように構成され、前記規制部材は、前記楔状空間に移動可能に配設されているとともに、付勢部材により前記幅狭部に食い込む方向に付勢されて前記保持部材の前記太陽ギアに対する回動を規制できるように構成されていることを特徴とするリクライニング装置を提供する。   In order to solve the above-described problems, the present invention is engaged with a first plate, a second plate that is rotatable with respect to the first plate, and internal teeth provided on each of the first plate and the second plate. A reclining device comprising a plurality of planetary gears and a sun gear meshed with the planetary gear, wherein the reclining device rotatably holds the planetary gear and is rotatably arranged with respect to the sun gear. A holding member having an inner peripheral wall and a regulating member for restricting the rotation of the holding member with respect to the sun gear, the sun gear including a wedge-shaped space partitioning portion facing the inner peripheral wall of the holding member, and the wedge shape The space partition portion is configured such that a wedge-shaped space having a wide portion and a narrow portion narrower than the wide portion is defined between the inner peripheral wall and the wedge-shaped space partition portion. The regulating member is It is arranged so as to be movable in the wedge-shaped space, and is configured to be urged by the urging member in a direction to bite into the narrow portion and to restrict the rotation of the holding member with respect to the sun gear. A reclining device is provided.

この構成によれば、例えば第1プレートをシートのシートバックに、第2プレートをシートのシートクッションに、夫々取り付けた状態で、シートバックに後傾倒方向の力がかかって第1プレートが回動し始め、付勢部材により遊星ギアを介して太陽ギアが保持部材に対して回動し始めると、規制部材が楔状空間における幅狭部側に相対的に移動し幅狭部に食い込ませるように入り込ませることができる。   According to this configuration, for example, with the first plate attached to the seat back of the seat and the second plate attached to the seat cushion of the seat, the first plate rotates by applying a force in the backward tilt direction to the seat back. When the sun gear starts to rotate with respect to the holding member via the planetary gear by the biasing member, the regulating member moves relative to the narrow portion side in the wedge-shaped space and bites into the narrow portion. You can get in.

又、規制部材を幅狭部に食い込ませるように入り込ませることで、保持部材と太陽ギアとが夫々規制部材から互いに遠ざかる方向の反力を受け、その反力によって、保持部材は、保持した遊星ギアを第1プレート及び第2プレート夫々の内歯に押し付け、遊星ギアと第1プレート及び第2プレート夫々の内歯との両者間に隙間が無い状態にできる。又、反力を受けた太陽ギアは、他の遊星ギアを第1プレート及び第2プレート夫々の内歯に押し付け、他の遊星ギアと第1プレート及び第2プレート夫々の内歯との両者間に隙間が無い状態にできる。従って、遊星ギアと第1プレート及び第2プレート夫々の内歯とのがたつきを防止できる。   Further, by allowing the regulating member to penetrate into the narrow portion, the holding member and the sun gear receive reaction forces in directions away from the regulating member, and the reaction member causes the holding planet to hold the planet. The gear can be pressed against the internal teeth of the first plate and the second plate so that there is no gap between the planetary gear and the internal teeth of the first plate and the second plate. The sun gear that has received the reaction force presses the other planetary gears against the inner teeth of the first plate and the second plate, and between the other planetary gears and the inner teeth of the first plate and the second plate. There can be no gap. Therefore, rattling between the planetary gear and the internal teeth of the first plate and the second plate can be prevented.

又、遊星ギアが第1プレート及び第2プレート夫々の内歯に押し付けられることで、遊星ギアが第1プレート及び第2プレートの内歯を少しずつ徐々に転がり動くようなことを防止でき、保持部材を確実に固定状態に維持できる。   In addition, the planetary gear is pressed against the inner teeth of the first plate and the second plate, so that the planetary gear can be prevented from gradually rolling the inner teeth of the first plate and the second plate. The member can be reliably maintained in a fixed state.

又、楔状空間の規制部材は、付勢部材によって幅狭部側に付勢されているため、規制部材が保持部材に連動して幅広部側に移動するのを防止でき、確実に幅狭部側に相対的に移動させることができる。   Further, since the restricting member in the wedge-shaped space is urged toward the narrow portion by the urging member, the restricting member can be prevented from moving to the wide portion side in conjunction with the holding member, and the narrow portion is surely secured. Can be moved relatively to the side.

他の一態様では、上記リクライニング装置において、前記太陽ギアを回動操作する太陽ギア操作部材と、前記規制部材による前記規制を解除する規制解除凸部とを、更に備え、前記規制解除凸部は、前記太陽ギア操作部材による前記太陽ギアの回動操作に際し前記付勢部材の付勢力に抗して前記規制部材を前記幅狭部から前記幅広部へ押圧移動させて前記規制を解除し得るように構成されている。   In another aspect, the reclining device further includes a sun gear operation member that rotates the sun gear, and a restriction release protrusion that releases the restriction by the restriction member, wherein the restriction release protrusion is When the sun gear is rotated by the sun gear operation member, the restriction member can be released from the narrow part to the wide part against the urging force of the urging member by releasing the restriction. It is configured.

この構成によれば、楔状空間の規制部材は、付勢部材によって幅狭部側に付勢されているため、規制部材が保持部材に連動して幅広部側に移動するのを防止でき、確実に幅狭部側に相対的に移動させることができる。   According to this configuration, since the restricting member in the wedge-shaped space is urged toward the narrow portion by the urging member, the restricting member can be prevented from moving toward the wide portion in conjunction with the holding member. Can be moved relatively to the narrow portion side.

又、例えば着座者が太陽ギア操作部材を操作し太陽ギアを回動操作してシートバックを前又は後に傾倒操作する場合に、太陽ギアの回動に際して規制解除凸部が規制部材を幅狭部から幅広部へ押圧移動させるため、規制部材が幅狭部に入り込んで太陽ギアが回動操作し難くなるようなことを防止でき、太陽ギア操作部材によって太陽ギアを円滑に回動操作できる。   Further, for example, when the seated person operates the sun gear operation member to rotate the sun gear and tilts the seat back forward or backward, the restriction release convex portion makes the restriction member a narrow portion when the sun gear rotates. Therefore, it is possible to prevent the sun gear from being difficult to rotate because the restricting member enters the narrow portion, and the sun gear can be smoothly rotated by the sun gear operating member.

他の一態様では、上記リクライニング装置において、前記太陽ギア操作部材は、前記太陽ギアを押圧して回動させる押圧操作部を備え、前記規制解除凸部は、前記太陽ギア操作部材による前記太陽ギアの回動操作に際し、前記押圧操作部が前記太陽ギアを押圧する前に前記規制部材を前記幅狭部から前記幅広部へ押圧移動させ得るように構成されている。   In another aspect, in the reclining device, the sun gear operation member includes a pressing operation unit that presses and rotates the sun gear, and the restriction release convex portion is the sun gear by the sun gear operation member. When the rotation operation is performed, the restricting member can be pressed and moved from the narrow portion to the wide portion before the pressing operation portion presses the sun gear.

この構成によれば、例えば着座者が太陽ギア操作部材を操作し太陽ギアを回動操作してシートバックを傾倒操作する場合に、押圧操作部が太陽ギアを押圧する前に規制部材を幅狭部から幅広部へ押圧移動させるため、規制部材が規制部材の幅狭部に入り込んで太陽ギアが回動操作し難くなるようなことを防止でき、太陽ギア操作部材によって太陽ギアを円滑に回動操作できる。   According to this configuration, for example, when the seated person operates the sun gear operation member to rotate the sun gear and tilts the seat back, the restricting member is narrowed before the pressing operation unit presses the sun gear. Since the pressure member is moved from the wide part to the wide part, it can be prevented that the restricting member enters the narrow part of the restricting member and the sun gear is difficult to rotate, and the sun gear is smoothly rotated by the sun gear operating member. Can be operated.

他の一態様では、上記いずれかのリクライニング装置において、前記規制部材は、その軸心部に係止用孔を有する円筒状のものから構成され、前記付勢部材は、リング状の付勢部材本体と、前記付勢部材本体の第1端に設けられ前記太陽ギアに係止された太陽ギア係止片と、前記付勢部材本体の第2端に設けられ前記規制部材の係止用孔に係止された規制部材係止片とを備えている。   In another aspect, in any one of the above reclining devices, the restriction member is formed of a cylindrical member having a locking hole in an axial center portion thereof, and the biasing member is a ring-shaped biasing member. A main body, a sun gear locking piece provided at the first end of the biasing member main body and locked to the sun gear, and a locking hole for the restriction member provided at the second end of the biasing member main body. And a restricting member locking piece locked to the head.

この構成によれば、付勢部材の規制部材係止部を、規制部材における軸心部に設けた係止用孔に係止するため、規制部材が付勢部材から離れることがなく、規制部材を付勢部材によって確実に幅狭部の方向に付勢できる。   According to this configuration, since the restricting member locking portion of the biasing member is locked in the locking hole provided in the shaft center portion of the restricting member, the restricting member is not separated from the biasing member. Can be reliably urged in the direction of the narrow portion by the urging member.

本発明は、シ−トバックに力がかかった場合に、プレートの内歯と遊星ギアとのがたつきが生じ難く、しかも、シ−トバックを確実に固定状態に維持できるリクライニング装置を提供しえたものである。   The present invention can provide a reclining device in which rattling between the inner teeth of the plate and the planetary gear hardly occurs when force is applied to the seat back, and the seat back can be reliably maintained in a fixed state. Is.

本発明のリクライニング装置を装着した自動車用シートの一実施形態の側面図である。It is a side view of one embodiment of a car seat equipped with a reclining device of the present invention. 本発明の一実施形態のリクライニング装置の要部の分解斜視図である。It is a disassembled perspective view of the principal part of the reclining apparatus of one Embodiment of this invention. 図2のリクライニング装置の組付け状態の内部構造を表した説明図である。It is explanatory drawing showing the internal structure of the assembly | attachment state of the reclining apparatus of FIG. 図3のIV−IV線断面図である。It is the IV-IV sectional view taken on the line of FIG. 図3のV−V線断面図である。It is the VV sectional view taken on the line of FIG. 左方側からの太陽ギア操作部材の斜視図である。It is a perspective view of the sun gear operation member from the left side. 図3における規制部材と規制解除凸部との位置関係を示す説明図である。It is explanatory drawing which shows the positional relationship of the control member and control cancellation | release convex part in FIG. 図7の状態から太陽ギア操作部材が時計方向に回動して規制解除凸部が規制部材に当接した状態の上記位置関係を示す説明図である。It is explanatory drawing which shows the said positional relationship of the state which the sun gear operation member rotated clockwise from the state of FIG. 7, and the restriction release convex part contact | abutted to the restriction member. 図8の状態から、更に太陽ギア操作部材が回動して太陽ギア操作部材の押圧操作部が太陽ギアの第1被押圧操作部に当接した状態の上記位置関係を示す説明図である。It is explanatory drawing which shows the said positional relationship of the state which the sun gear operation member further rotated from the state of FIG. 8, and the press operation part of the sun gear operation member contacted the 1st to-be-pressed operation part of the sun gear. 図9の状態から太陽ギア操作部材が回動した状態の上記位置関係を示す説明図である。It is explanatory drawing which shows the said positional relationship of the state which the sun gear operation member rotated from the state of FIG.

以下、本発明を実施するための形態について、図面を参照しながら詳細に説明する。図1は、本発明のリクライニング装置を装着した自動車用シートの一実施形態の側面図、図2は、本発明の一実施形態のリクライニング装置の要部の分解斜視図、図3は、図2のリクライニング装置の組付け状態の内部構造の説明図、図4は、図3のIV−IV線断面図、図5は、図3のV−V線断面図である。   Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of an embodiment of an automobile seat equipped with the reclining device of the present invention, FIG. 2 is an exploded perspective view of a main part of the reclining device of an embodiment of the present invention, and FIG. FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. 3, and FIG. 5 is a cross-sectional view taken along the line V-V of FIG.

本発明のリクライニング装置10は、この実施形態では、図1に示すように自動車用シート100に用いられるように構成されている。この実施形態のリクライニング装置10は、図2〜図6に示すように第1プレート1と、第2プレート2と、複数の遊星ギア3a〜3cと、太陽ギア4と、遊星ギア3a〜3cを保持した保持部材5a、5bと、太陽ギア4を回動操作する太陽ギア操作部材6と、保持部材5a、5bの回動を規制する規制部材7と、規制部材7を付勢する付勢部材8と、規制部材7による規制を解除する規制解除凸部9(図6参照)とを備えている。   In this embodiment, the reclining device 10 of the present invention is configured to be used in an automobile seat 100 as shown in FIG. As shown in FIGS. 2 to 6, the reclining device 10 of this embodiment includes a first plate 1, a second plate 2, a plurality of planetary gears 3 a to 3 c, a sun gear 4, and planetary gears 3 a to 3 c. The holding members 5a and 5b that are held, the sun gear operation member 6 that rotates the sun gear 4, the restriction member 7 that restricts the rotation of the holding members 5a and 5b, and the biasing member that biases the restriction member 7 8 and a restriction release convex part 9 (see FIG. 6) for releasing the restriction by the restriction member 7.

第1プレート1は、中心部に第1プレート用孔11を有するリング板状のものから構成されている。この第1プレート用孔11を区画した内周部には、全周に渡って第1プレート用内歯12が設けられている。この実施形態では、第1プレート用内歯12は、38個の歯から構成されている。   The 1st plate 1 is comprised from the ring plate-shaped thing which has the hole 11 for 1st plates in the center part. A first plate internal tooth 12 is provided over the entire inner periphery of the first plate hole 11. In this embodiment, the first plate internal teeth 12 are composed of 38 teeth.

又、第1プレート1の右側面には、受容部13が設けられている。受容部13は、第1プレート1の右側面から所定の深さで、円形状に窪まされるようにして形成されている。   A receiving portion 13 is provided on the right side surface of the first plate 1. The receiving portion 13 is formed to be recessed in a circular shape at a predetermined depth from the right side surface of the first plate 1.

このように構成された第1プレート1は、この実施形態では、シート100のシートバック102(図1参照)に固定的に取り付けられる。   In this embodiment, the first plate 1 configured as described above is fixedly attached to the seat back 102 (see FIG. 1) of the seat 100.

第2プレート2は、第1プレート1と略同形状のもので、中心部に第2プレート用孔21を有するリング板状のものから構成されており、第2プレート用孔21を区画した内周部には、全周に渡って第2プレート用内歯22が設けられている。この実施形態では、第2プレート用内歯22は、35個の歯から構成されている。   The second plate 2 has substantially the same shape as the first plate 1 and is formed of a ring plate shape having a second plate hole 21 at the center, and the second plate hole 21 is partitioned. The peripheral portion is provided with second plate internal teeth 22 over the entire circumference. In this embodiment, the second plate internal teeth 22 are composed of 35 teeth.

又、第2プレート2の右側面には、凹部23が設けられている。この凹部23は、第2プレート2の右側面から所定の深さで、円形状に窪まされるようにして形成されている。   Further, a concave portion 23 is provided on the right side surface of the second plate 2. The recess 23 is formed in a circular shape with a predetermined depth from the right side surface of the second plate 2.

また、第2プレート2の左側面には、嵌合部24が設けられている。この嵌合部24は、第2プレート2の左側面から所定量、突出させるようにして、上記第1プレート1の受容部13に回動自在に嵌まり込み得るように形成されている。   A fitting portion 24 is provided on the left side surface of the second plate 2. The fitting portion 24 is formed to protrude from the left side surface of the second plate 2 by a predetermined amount so that the fitting portion 24 can be rotatably fitted into the receiving portion 13 of the first plate 1.

この嵌合部24が、第1プレート1の受容部13に嵌まり込むことにより、第1プレート1の第1プレート用内歯12と第2プレート2の第2プレート用内歯22との夫々の中心が位置合わせされて同心になるようになっている。   When the fitting portion 24 is fitted into the receiving portion 13 of the first plate 1, each of the first plate internal teeth 12 of the first plate 1 and the second plate internal teeth 22 of the second plate 2. The center of is aligned and concentric.

このように構成された第2プレート2は、この実施形態では、シート100のシートクッション101に固定的に取り付けられる。   In this embodiment, the second plate 2 configured in this manner is fixedly attached to the seat cushion 101 of the seat 100.

遊星ギア3a〜3cは、この実施形態では、同一構成を採る3つから構成されている。各遊星ギア3a〜3cは、10個の歯を有するギア部31と、ギア部31の軸方向の両側夫々に、軸方向に突設された軸部32とを備えている。   In this embodiment, the planetary gears 3a to 3c are configured by three having the same configuration. Each of the planetary gears 3a to 3c includes a gear portion 31 having ten teeth, and shaft portions 32 projecting in the axial direction on both sides of the gear portion 31 in the axial direction.

保持部材は、図2の遊星ギア3a〜3cの右側に配設された第1保持部材5aと、図2の第1プレート1の左側に配設され第1保持部材5aとほぼ同構成を採る第2保持部材5bとの2つから構成されている。第1保持部材5aは、円形状の内周壁50を有するリング板状のものから構成されており、3つの軸保持孔51と、3つの連結部材挿通孔52とを備えている。   The holding member has substantially the same configuration as the first holding member 5a disposed on the right side of the planetary gears 3a to 3c in FIG. 2 and the first holding member 5a disposed on the left side of the first plate 1 in FIG. It is comprised from two with the 2nd holding member 5b. The first holding member 5 a is formed of a ring plate shape having a circular inner peripheral wall 50, and includes three shaft holding holes 51 and three connecting member insertion holes 52.

軸保持孔51は、上記遊星ギア3a〜3c夫々の軸部32を回動自在に保持する軸保持部としてのもので、夫々は、保持部材本体50における中心から所定長さ(半径)の位置に周方向に沿って等間隔に配設されている。   The shaft holding hole 51 serves as a shaft holding portion that rotatably holds the shaft portion 32 of each of the planetary gears 3a to 3c. Each of the shaft holding holes 51 is a position having a predetermined length (radius) from the center of the holding member main body 50. Are arranged at equal intervals along the circumferential direction.

連結部材挿通孔52は、第1保持部材5aと第2保持部材5bとを連結する連結部材52aを通すためのもので、夫々は、保持部材本体50における軸保持孔51と略同じ半径位置であって隣接する2つの軸保持孔51の間に配設されている。   The connecting member insertion hole 52 is for passing the connecting member 52a that connects the first holding member 5a and the second holding member 5b, and each has a substantially same radial position as the shaft holding hole 51 in the holding member main body 50. Therefore, it is disposed between two adjacent shaft holding holes 51.

上記のように構成された第1保持部材5aは第2プレート2の凹部23内に回動可能に、第2保持部材5bは第1プレート1の左方側に、夫々配設され、その状態で、夫々の軸保持孔51に遊星ギア3a〜3cの軸部32が通されているとともに、夫々の連結部材挿通孔52に連結部材52aが通されている。   The first holding member 5a configured as described above is rotatable in the recess 23 of the second plate 2, and the second holding member 5b is disposed on the left side of the first plate 1, respectively. The shaft portions 32 of the planetary gears 3 a to 3 c are passed through the shaft holding holes 51, and the connecting members 52 a are passed through the connecting member insertion holes 52.

この状態で、図3〜図5に示すように遊星ギア3a〜3c夫々のギア部31が第1プレート1の第1プレート用内歯12及び第2プレート2の第2プレート用内歯22に噛合し、第1保持部材5aの回動に伴い遊星ギア3a〜3c夫々が回動駆動する。   In this state, as shown in FIGS. 3 to 5, the gear portions 31 of the planetary gears 3 a to 3 c are respectively connected to the first plate internal teeth 12 of the first plate 1 and the second plate internal teeth 22 of the second plate 2. The planetary gears 3a to 3c are driven to rotate as the first holding member 5a rotates.

次に、太陽ギア4について説明する。太陽ギア4は、図2に示すように、この実施形態では、ギア部41と、ギア部41から突設された凸部43と、中心部を軸方向に貫通するように設けられた軸挿通孔42とを備えている。   Next, the sun gear 4 will be described. As shown in FIG. 2, in this embodiment, the sun gear 4 has a gear portion 41, a convex portion 43 protruding from the gear portion 41, and a shaft insertion provided so as to penetrate the center portion in the axial direction. Hole 42.

ギア部41は、外周に、上記遊星ギア3a〜3c夫々のギア部31と噛合する複数の歯を備えている。この実施形態では、16個の歯を備えたものとされている。   The gear portion 41 includes a plurality of teeth on the outer periphery that mesh with the gear portions 31 of the planetary gears 3a to 3c. In this embodiment, 16 teeth are provided.

凸部43は、ギア部41の図2の右端面から右方に所定量、軸挿通孔42を囲むように突出して略筒状に形成されている。この凸部43の外周には、図7に示すように、楔状空間区画部44と、楔状空間区画部44の周方向の両側夫々に設けられた2つの被押圧操作部45a、45bと、バネ係止部46とが設けられている。   The convex portion 43 protrudes so as to surround the shaft insertion hole 42 by a predetermined amount from the right end surface of the gear portion 41 in FIG. 2 and is formed in a substantially cylindrical shape. As shown in FIG. 7, on the outer periphery of the convex portion 43, there are a wedge-shaped space partition portion 44, two pressed operation portions 45 a and 45 b provided on both sides in the circumferential direction of the wedge-shaped space partition portion 44, and a spring A locking portion 46 is provided.

楔状空間区画部44は、図7に示すように第1保持部材5aの内周壁50の径内側に配設されて内周壁50と互いに径方向に対向しており、ギア部41の中心Oからの距離Lが、周方向の図7の反時計方向側(一方側)に漸次大きくなるように形成されている。   As shown in FIG. 7, the wedge-shaped space partition portion 44 is disposed on the inner diameter side of the inner peripheral wall 50 of the first holding member 5 a and is opposed to the inner peripheral wall 50 in the radial direction, and from the center O of the gear portion 41. The distance L is gradually increased to the counterclockwise direction (one side) in FIG. 7 in the circumferential direction.

被押圧操作部は、第1被押圧操作部45aと、第1被押圧操作部45a反統計方向側に配設された第2被押圧操作部45bとから構成されている。   The pressed operation unit includes a first pressed operation unit 45a and a first pressed operation unit 45b disposed on the counter-statistical direction side of the first pressed operation unit 45a.

バネ係止部46は、第2被押圧操作部45bと楔状空間区画部44との間に、凸部43の外周面から径内側に所定の幅で溝状に窪まされるようにして形成されている。   The spring locking portion 46 is formed between the second pressed operation portion 45b and the wedge-shaped space partitioning portion 44 so as to be recessed in a groove shape with a predetermined width from the outer peripheral surface of the convex portion 43 to the inside of the diameter. ing.

そして、この太陽ギア4は、図3〜図5に示すように上記3つの遊星ギア3a〜3cの径内側に、太陽ギア4のギア部41と遊星ギア3a〜3c夫々のギア部31とが噛合するようにして遊星ギア3a〜3c及び保持部材5a、5bと回動可能になるように配設されている。   As shown in FIGS. 3 to 5, the sun gear 4 includes a gear portion 41 of the sun gear 4 and a gear portion 31 of each of the planetary gears 3 a to 3 c inside the diameters of the three planetary gears 3 a to 3 c. The planetary gears 3a to 3c and the holding members 5a and 5b are arranged so as to be rotatable so as to mesh with each other.

又、この状態で、楔状空間区画部44は、図7に示すように第1保持部材5aの内周壁50の径内側に配設されて内周壁50と互いに径方向に対向しており、楔状空間区画部44と内周壁50とによってそれらの間に楔状空間48が区画形成されている。   In this state, as shown in FIG. 7, the wedge-shaped space partition portion 44 is disposed on the inner side of the inner peripheral wall 50 of the first holding member 5a and is opposed to the inner peripheral wall 50 in the radial direction. A wedge-shaped space 48 is defined between the space partition 44 and the inner peripheral wall 50.

この楔状空間48は、幅広部48aと、幅広部48aの周方向の図7の反時計方向側(一方側)に配設され幅広部48aよりも幅の狭い幅狭部48bと、幅広部48aと幅狭部48bとの間に両者を連通するように配設され幅広部48aから幅狭部48b側に漸次幅が狭くなる連通路48cとを備えている。   The wedge-shaped space 48 includes a wide portion 48a, a narrow portion 48b that is disposed on the counterclockwise direction side (one side) in FIG. 7 in the circumferential direction of the wide portion 48a, and a narrow portion 48b that is narrower than the wide portion 48a, and a wide portion 48a. And the narrow portion 48b are provided so as to communicate with each other between the wide portion 48a and the narrow portion 48b.

次に、太陽ギア操作部材6について説明する。太陽ギア操作部材6は、図2に示すように円板状のものから構成されており、図6に示すように、第1保持部材5a側の左側面における下方側に設けられた押圧操作部61と、中心部にあけられた四角形状の軸連結孔64とを備えている。   Next, the sun gear operation member 6 will be described. The sun gear operation member 6 is formed of a disc-shaped member as shown in FIG. 2, and as shown in FIG. 6, a pressing operation portion provided on the lower side of the left side surface on the first holding member 5a side. 61 and a rectangular shaft coupling hole 64 provided in the center.

押圧操作部61は、左側面から左方側に所定量だけ突出するように形成されている。この押圧操作部61は、その第1端に、第1保持部材5aの第1被押圧操作部45aと当接する第1当接部61aを、その第2端に、第1保持部材5aの第2被押圧操作部45bと当接する第2当接部61bを、夫々備えている。   The pressing operation unit 61 is formed so as to protrude from the left side surface to the left side by a predetermined amount. The pressing operation portion 61 has a first contact portion 61a that contacts the first pressed operation portion 45a of the first holding member 5a at its first end, and a first contact portion 61a of the first holding member 5a at its second end. 2 A second abutting portion 61b that abuts on the pressed operation portion 45b is provided.

このように構成された太陽ギア操作部材6は、回動軸65を介して操作ダイヤル66に回動不能に連結されている。   The sun gear operation member 6 configured in this manner is connected to the operation dial 66 through the rotation shaft 65 so as not to rotate.

詳しくは、シート100のシートバック102とシートクッション101との連結部に、それらに対して回動可能に配設された四角柱状の回動軸65が設けられている。この回動軸65は、図2に示すようにその第1端65aが第2保持部材5b、第1プレート1の第1プレート用孔11、第2プレート2の第2プレート用孔21、及び太陽ギア4の軸挿通孔42に順次、回動可能に通されている。又、それらに通された第1端65aが、太陽ギア操作部材6の軸連結孔64に回動不能に挿通されている。   Specifically, a quadrangular columnar rotation shaft 65 is provided at a connecting portion between the seat back 102 and the seat cushion 101 of the seat 100 so as to be rotatable with respect to them. As shown in FIG. 2, the rotating shaft 65 has a first end 65 a having a second holding member 5 b, a first plate hole 11 in the first plate 1, a second plate hole 21 in the second plate 2, and The sun gear 4 is sequentially passed through the shaft insertion hole 42 so as to be rotatable. Further, the first end 65a passed through them is inserted through the shaft coupling hole 64 of the sun gear operation member 6 so as not to rotate.

更に、その軸連結孔64に通された回動軸65の第1端65aが、図2に示す操作ダイヤル66に回動不能に連結され、操作ダイヤル66の回動に伴う回動軸65の回動によって太陽ギア操作部材6が回動するようになっている。   Further, the first end 65a of the rotation shaft 65 passed through the shaft connection hole 64 is non-rotatably connected to the operation dial 66 shown in FIG. The sun gear operating member 6 is rotated by the rotation.

又、この状態で、図7に示すように太陽ギア操作部材6の押圧操作部61は、第1保持部材5aの内周壁50と太陽ギア4の凸部43の外周との間に形成された間隙40における第1保持部材5aの第1被押圧操作部45aと第2被押圧操作部45bとの間に配設されている。そして、第1当接部61aと第1保持部材5aの第1被押圧操作部45aとが対向し、第2当接部61bと第1保持部材5aの第2被押圧操作部45bとが対向している。   Further, in this state, as shown in FIG. 7, the pressing operation portion 61 of the sun gear operation member 6 is formed between the inner peripheral wall 50 of the first holding member 5 a and the outer periphery of the convex portion 43 of the sun gear 4. The first holding member 5a in the gap 40 is disposed between the first pressed operation portion 45a and the second pressed operation portion 45b. The first contact portion 61a and the first pressed operation portion 45a of the first holding member 5a are opposed to each other, and the second contact portion 61b and the second pressed operation portion 45b of the first holding member 5a are opposed to each other. doing.

次に、規制部材7について説明する。この実施形態では、図2、図7に示すように軸心部に係止用孔71を有する円筒状のローラから構成されている。規制部材7の外径は、楔状空間48の幅広部48aの幅よりも小さく、幅狭部48bの幅よりも大きく設定されている。   Next, the regulating member 7 will be described. In this embodiment, as shown in FIG. 2 and FIG. 7, it is composed of a cylindrical roller having a locking hole 71 in the axial center. The outer diameter of the restricting member 7 is set smaller than the width of the wide portion 48a of the wedge-shaped space 48 and larger than the width of the narrow portion 48b.

そして、この規制部材7は、楔状空間48内に、幅広部48aから幅狭部48bに移動可能に配設されている。   The regulating member 7 is disposed in the wedge-shaped space 48 so as to be movable from the wide portion 48a to the narrow portion 48b.

次に、付勢部材8について説明する。この付勢部材8は、図2、図7に示すようにほぼリング状の付勢部材本体81と、付勢部材本体81の第1端に設けられた太陽ギア係止片82と、付勢部材本体81の第2端に設けられた規制部材係止片83とを備えている。   Next, the urging member 8 will be described. As shown in FIGS. 2 and 7, the urging member 8 includes a substantially ring-shaped urging member main body 81, a sun gear locking piece 82 provided at the first end of the urging member main body 81, And a regulating member locking piece 83 provided at the second end of the member main body 81.

付勢部材本体81の第1端には、その第1端から付勢部材本体81の径内側に折り曲げられた第1支持片81aが設けられている。又、付勢部材本体81の第2端には、その第2端から付勢部材本体81の径内側に折り曲げられた第2支持片81bが設けられている。   The first end of the urging member main body 81 is provided with a first support piece 81 a that is bent from the first end to the inside of the urging member main body 81. The second end of the biasing member main body 81 is provided with a second support piece 81 b that is bent from the second end to the inside of the biasing member main body 81.

太陽ギア係止片82は、第1支持片81aから折り曲げられて付勢部材本体81の軸方向と同方向に延ばされている。一方、規制部材係止片83は、第2支持片81bから折り曲げられて付勢部材本体81の軸方向と同方向、即ち太陽ギア係止片82と平行に延ばされている。   The sun gear locking piece 82 is bent from the first support piece 81 a and extends in the same direction as the axial direction of the biasing member main body 81. On the other hand, the restricting member locking piece 83 is bent from the second support piece 81 b and extends in the same direction as the axial direction of the biasing member main body 81, that is, parallel to the sun gear locking piece 82.

そして、このように構成された付勢部材8の付勢部材本体81は、図2に示すように太陽ギア操作部材6の右側方側に配設され、付勢部材8の太陽ギア係止片82及び規制部材係止片83は、太陽ギア操作部材6に設けられた長孔62に右方側から通されている。   The biasing member main body 81 of the biasing member 8 configured as described above is disposed on the right side of the sun gear operating member 6 as shown in FIG. 82 and the restricting member locking piece 83 are passed through the long hole 62 provided in the sun gear operating member 6 from the right side.

また、その長孔62に通された太陽ギア係止片82は、太陽ギア4のバネ係止部46に入れられ、これにより、太陽ギア係止片82がバネ係止部46に係止されている。   The sun gear locking piece 82 passed through the long hole 62 is put into the spring locking portion 46 of the sun gear 4, whereby the sun gear locking piece 82 is locked to the spring locking portion 46. ing.

また、長孔62に通された規制部材係止片83は、規制部材7の係止用孔71に入れられており、これにより、規制部材係止片83が規制部材7に係止されているとともに、規制部材7を幅狭部48bの方向に付勢している。   Further, the restricting member locking piece 83 passed through the long hole 62 is put in the locking hole 71 of the restricting member 7, whereby the restricting member locking piece 83 is locked to the restricting member 7. In addition, the regulating member 7 is urged in the direction of the narrow portion 48b.

次に、規制解除凸部9について説明する。この規制解除凸部9は、この実施形態では、図6に示すように太陽ギア操作部材6に連結された板状片から構成されている。詳しくは、この規制解除凸部9は、太陽ギア操作部材6の左側面から太陽ギア4側の左方側に所定量だけ突出するようにして、太陽ギア操作部材6の左側面に一体的に形成されている。   Next, the restriction release convex portion 9 will be described. In this embodiment, the restriction release convex portion 9 is composed of a plate-like piece connected to the sun gear operation member 6 as shown in FIG. Specifically, the restriction release convex portion 9 is integrated with the left side surface of the sun gear operation member 6 so as to protrude from the left side surface of the sun gear operation member 6 to the left side of the sun gear 4 side by a predetermined amount. Is formed.

そして、この規制解除凸部9は、図3、図7に示すように、上記間隙40内における規制部材7の側方側に、周方向に移動可能に配設されている。   As shown in FIGS. 3 and 7, the restriction release convex portion 9 is disposed on the side of the restriction member 7 in the gap 40 so as to be movable in the circumferential direction.

又、規制解除部9と規制部材7との間に形成される隙間t1は、上記太陽ギア操作部材6の第1押圧操作部61aと第1保持部材5aの第1被押圧操作部45aとの間に形成される隙間t2よりも小さくなるように設定されている。   Further, the gap t1 formed between the restriction release portion 9 and the restriction member 7 is between the first pressing operation portion 61a of the sun gear operation member 6 and the first pressed operation portion 45a of the first holding member 5a. It is set to be smaller than the gap t2 formed therebetween.

次に、以上のように構成されたリクライニング装置の動作について説明する。   Next, the operation of the reclining device configured as described above will be described.

このリクライニング装置10が組み込まれたシート100のシートバック102に、図1に示すように、後傾倒方向(X方向)の力がかかり、シートバック102に固定された第1プレート1が図3の時計方向に回動しようとする力がかかると、楔状空間48内の規制部材7が付勢部材8よって楔状空間48の幅狭部48bに付勢されているため、規制部材7が幅狭部48bに食い込む。これにより、楔状空間48を区画形成した太陽ギア4と第1保持部材5aとが夫々規制部材7から互いに遠ざかるような反力を受け、この反力によって保持部材5aに保持した遊星ギア3a〜3cの内の少なくとも1つの軸部32(図3では、上側の遊星ギア3aの軸部32)を第1プレート1及び第2プレート2の径方向外側に押圧する。   As shown in FIG. 1, a force in the backward tilt direction (X direction) is applied to the seat back 102 of the seat 100 in which the reclining device 10 is incorporated, and the first plate 1 fixed to the seat back 102 is shown in FIG. When a force to rotate in the clockwise direction is applied, the regulating member 7 in the wedge-shaped space 48 is urged by the urging member 8 to the narrow portion 48b of the wedge-shaped space 48. Cut into 48b. As a result, the sun gear 4 and the first holding member 5a that define the wedge-shaped space 48 receive reaction forces that move away from the regulating member 7, and the planetary gears 3a to 3c that are held by the holding member 5a by this reaction force. At least one shaft portion 32 (the shaft portion 32 of the upper planetary gear 3a in FIG. 3) is pressed outward in the radial direction of the first plate 1 and the second plate 2.

この押圧により、その遊星ギア3aのギア部31が第1プレート1の内歯12及び第2プレート2の内歯22に押し付けられ、その結果、遊星ギア3aのギア部31と第2プレート2の内歯22とのバックラッシ分のガタがなくなる。   By this pressing, the gear portion 31 of the planetary gear 3a is pressed against the inner teeth 12 of the first plate 1 and the inner teeth 22 of the second plate 2, and as a result, the gear portions 31 of the planetary gear 3a and the second plate 2 The backlash with the internal teeth 22 is eliminated.

又、上記反力を受けた太陽ギア4は、上記第1保持部材5aに押圧された遊星ギアとは異なる遊星ギア(図3では、左下側及び右下側夫々の遊星ギア3b、3c)のギア部31を太陽ギア4のギア部41が、第1プレート1及び第2プレート2の径方向外側に押圧する。   The sun gear 4 that has received the reaction force is a planetary gear different from the planetary gear pressed by the first holding member 5a (the planetary gears 3b and 3c on the lower left side and the lower right side in FIG. 3). The gear part 41 of the sun gear 4 presses the gear part 31 outward in the radial direction of the first plate 1 and the second plate 2.

この押圧により、それらの遊星ギア3b、3cのギア部31が第1プレート1の内歯12及び第2プレート2の内歯22に押し付けられ、その結果、遊星ギア3のギア部31と第1プレート1の内歯12及び第2プレート2の内歯22とのバックラッシ分のガタがなくなる。従って、シートバック102がガタつくようなことがなくなる。   By this pressing, the gear portions 31 of the planetary gears 3b and 3c are pressed against the inner teeth 12 of the first plate 1 and the inner teeth 22 of the second plate 2, and as a result, the gear portions 31 of the planetary gear 3 and the first gear 1 Backlash between the internal teeth 12 of the plate 1 and the internal teeth 22 of the second plate 2 is eliminated. Therefore, the seat back 102 does not rattle.

一方、例えば着座者の意思でシートバック102を任意な角度に後傾倒する場合は、着座者が操作ダイヤル66(図2に図示)を把持して、図3の時計方向に回動操作する。   On the other hand, for example, when the seat back 102 is tilted rearward to an arbitrary angle with the intention of the seated person, the seated person holds the operation dial 66 (shown in FIG. 2) and rotates it clockwise in FIG.

これにより、回動軸65の回動によって太陽ギア操作部材6が同方向に回動する。その回動によって、図8に示すように、第1押圧操作部61aが太陽ギア4の第1被押圧操作部45aに当接するよりも先に規制解除凸部9が規制部材7に当接する。そして、太陽ギア操作部材6が更に回動すると、規制解除部9が規制部材7を付勢部材8の付勢力に抗して押圧し楔状空間48の幅広部48aに移動させる。   Thereby, the sun gear operation member 6 is rotated in the same direction by the rotation of the rotation shaft 65. As a result of the rotation, as shown in FIG. 8, the restriction release convex portion 9 comes into contact with the restriction member 7 before the first press operation portion 61 a comes into contact with the first pressed operation portion 45 a of the sun gear 4. When the sun gear operation member 6 further rotates, the restriction release unit 9 presses the restriction member 7 against the urging force of the urging member 8 and moves it to the wide part 48 a of the wedge-shaped space 48.

この状態で、規制部材7による規制が解除された状態になり、太陽ギア4が第1保持部材5aに対して回動可能状態になる。又、この規制解除状態で、図9に示すように第1押圧操作部61aが太陽ギア4の第1被押圧操作部45aに当接する。   In this state, the restriction by the restriction member 7 is released, and the sun gear 4 is rotatable with respect to the first holding member 5a. Moreover, in this restriction release state, as shown in FIG. 9, the first pressing operation portion 61 a comes into contact with the first pressed operation portion 45 a of the sun gear 4.

この状態から、更に太陽ギア操作部材6が回動すると、規制解除凸部9が第1楔状空間48の幅広部48aに移動させた状態に維持しながら、第1押圧操作部61aが太陽ギア4の第1被押圧操作部45aを図9の時計方向に押圧する。   When the sun gear operation member 6 further rotates from this state, the first pressing operation portion 61a is moved to the sun gear 4 while maintaining the state where the restriction release convex portion 9 is moved to the wide portion 48a of the first wedge-shaped space 48. The first pressed operation portion 45a is pressed clockwise in FIG.

その押圧によって、太陽ギア4が回動し、それに伴い太陽ギア4に噛合した遊星ギア3a〜3cが回動して遊星ギア3a〜3cのギア部31が第1プレート1の内歯12及び第2プレート2の内歯22に沿って転がる。その際、第1プレート1の内歯12の数が第2プレート2の内歯22の数よりも多いために、第1プレート1が第2プレート2に対して時計方向に回動し、シートバック102を適宜後傾倒させることができる。   Due to the pressing, the sun gear 4 is rotated, and accordingly, the planetary gears 3a to 3c meshed with the sun gear 4 are rotated so that the gear portion 31 of the planetary gears 3a to 3c is connected to the inner teeth 12 and the first gears of the first plate 1. 2 Roll along the internal teeth 22 of the plate 2. At that time, since the number of the inner teeth 12 of the first plate 1 is larger than the number of the inner teeth 22 of the second plate 2, the first plate 1 rotates clockwise with respect to the second plate 2, and the sheet The back 102 can be tilted rearward as appropriate.

一方、シートバック102を任意な角度に前傾倒させる場合は、着座者が操作ダイヤル66(図2に図示)を把持して、上記とは反対方向の図3の反時計方向(Y方向)に回動操作する。   On the other hand, when the seat back 102 is tilted forward to an arbitrary angle, the seated person holds the operation dial 66 (shown in FIG. 2) and moves in the counterclockwise direction (Y direction) in FIG. 3 opposite to the above. Rotate.

これにより、回動軸65の回動によって太陽ギア操作部材6が同方向に回動する。その回動によって、図10に示すように、第2押圧操作部61bが太陽ギア4の第2被押圧操作部45bに当接する。そして、太陽ギア操作部材6が更に回動すると、第2押圧操作部61bが太陽ギア4の第2被押圧操作部45bを反時計方向に押圧する。   Thereby, the sun gear operation member 6 is rotated in the same direction by the rotation of the rotation shaft 65. By the rotation, as shown in FIG. 10, the second pressing operation portion 61 b comes into contact with the second pressed operation portion 45 b of the sun gear 4. And if the sun gear operation member 6 further rotates, the 2nd press operation part 61b will press the 2nd pressed operation part 45b of the sun gear 4 counterclockwise.

その押圧によって、太陽ギア4が回動し、それに伴い太陽ギア4に噛合した遊星ギア3a〜3cが回動して遊星ギア3a〜3cのギア部31が第1プレート1の内歯12及び第2プレート2の内歯22に沿って転がる。その際、第1プレート1の内歯12の数が第2プレート2の内歯22の数よりも多いために、第1プレート1が第2プレート2に対して反時計方向に回動し、シートバック102を適宜前傾倒させることができる。   Due to the pressing, the sun gear 4 is rotated, and accordingly, the planetary gears 3a to 3c meshed with the sun gear 4 are rotated so that the gear portion 31 of the planetary gears 3a to 3c is connected to the inner teeth 12 and the first gears of the first plate 1. 2 Roll along the internal teeth 22 of the plate 2. At that time, since the number of the internal teeth 12 of the first plate 1 is larger than the number of the internal teeth 22 of the second plate 2, the first plate 1 rotates counterclockwise with respect to the second plate 2, The seat back 102 can be appropriately tilted forward.

尚、太陽ギア4の上記反時計方向の回動に際して、楔状空間48内の規制部材7は、幅広部48aに相対移動するため、太陽ギア4の上記反時計方向の回動が規制されることがない。   In addition, when the sun gear 4 rotates in the counterclockwise direction, the regulating member 7 in the wedge-shaped space 48 moves relative to the wide portion 48a, so that the rotation of the sun gear 4 in the counterclockwise direction is restricted. There is no.

以上、上記実施形態のリクライニング装置は、次のように把握することもできる。即ち、第1プレートと、前記第1プレートに対して回動可能な第2プレートと、前記第1プレート及び第2プレートの夫々に設けられた内歯に噛合した複数の遊星ギアと、前記遊星ギアと噛合した太陽ギアとを備えたリクライニング装置であって、前記太陽ギアは、前記遊星ギアを回動可能に保持した保持部材の当該太陽ギアに対する回動を規制する規制部材を配設するための楔状空間の一部を区画する楔状空間区画部を備えていることを特徴とするリクライニング装置である。   As mentioned above, the reclining apparatus of the said embodiment can also be grasped | ascertained as follows. That is, a first plate, a second plate rotatable with respect to the first plate, a plurality of planetary gears meshed with internal teeth provided on each of the first plate and the second plate, and the planet A reclining device comprising a sun gear meshed with a gear, wherein the sun gear is provided with a restricting member for restricting the rotation of the holding member holding the planetary gear with respect to the sun gear. It is a reclining apparatus provided with the wedge-shaped space division part which divides a part of wedge-shaped space of this.

このようにして太陽ギアは楔状空間の一部を区画する楔状空間区画部を備えている構成とすることで、楔状空間の形成を容易なものにできる。   In this way, the sun gear is configured to have a wedge-shaped space partitioning section that partitions a part of the wedge-shaped space, whereby the formation of the wedge-shaped space can be facilitated.

1 第1プレート
2 第2プレート
3a、3b、3c 遊星ギア
4 太陽ギア
5a 第1保持部材(保持部材)
6 太陽ギア操作部材
7 規制部材
8 付勢部材
9 規制解除凸部
44 楔状空間区画部
48 楔状空間
48a 幅広部
48b 幅狭部
10 リクライニング装置
DESCRIPTION OF SYMBOLS 1 1st plate 2 2nd plate 3a, 3b, 3c Planetary gear 4 Sun gear 5a 1st holding member (holding member)
6 Sun gear operation member 7 Restriction member 8 Biasing member 9 Restriction release convex part 44 Wedge-like space partition part 48 Wedge-like space 48a Wide part 48b Narrow part 10 Reclining device

Claims (4)

第1プレートと、前記第1プレートに対して回動可能な第2プレートと、前記第1プレート及び第2プレートの夫々に設けられた内歯に噛合した複数の遊星ギアと、前記遊星ギアと噛合した太陽ギアとを備えたリクライニング装置であって、
前記遊星ギアを回動可能に保持するとともに、前記太陽ギアに対して回動可能に配設された内周壁を有する保持部材と、前記保持部材の太陽ギアに対する回動を規制する規制部材とを備え、
前記太陽ギアは、前記保持部材の内周壁と対向した楔状空間区画部を備え、
前記楔状空間区画部は、前記内周壁と当該楔状空間区画部とによってそれらの間に、幅広部と前記幅広部よりも幅狭な幅狭部とを有する楔状空間が区画形成されるように構成され、
前記規制部材は、前記楔状空間に移動可能に配設されているとともに、付勢部材により前記幅狭部に食い込む方向に付勢されて前記保持部材の前記太陽ギアに対する回動を規制できるように構成されていることを特徴とするリクライニング装置。
A first plate, a second plate rotatable with respect to the first plate, a plurality of planetary gears meshed with internal teeth provided on each of the first plate and the second plate, and the planetary gears, A reclining device with a sun gear engaged,
A holding member having an inner peripheral wall rotatably arranged with respect to the sun gear, and a regulating member for restricting rotation of the holding member with respect to the sun gear; Prepared,
The sun gear includes a wedge-shaped space partition portion facing the inner peripheral wall of the holding member,
The wedge-shaped space partition portion is configured such that a wedge-shaped space having a wide portion and a narrow portion narrower than the wide portion is defined between the inner peripheral wall and the wedge-shaped space partition portion. And
The restricting member is movably disposed in the wedge-shaped space, and is urged in a direction to bite into the narrow portion by the urging member so that the rotation of the holding member with respect to the sun gear can be restricted. A reclining device characterized by being configured.
前記太陽ギアを回動操作する太陽ギア操作部材と、前記規制部材による前記規制を解除する規制解除凸部とを、更に備え、
前記規制解除凸部は、前記太陽ギア操作部材による前記太陽ギアの回動操作に際し前記付勢部材の付勢力に抗して前記規制部材を前記幅狭部から前記幅広部へ押圧移動させて前記規制を解除し得るように構成されていることを特徴とする請求項1記載のリクライニング装置。
A sun gear operation member that rotates the sun gear, and a restriction release convex part that releases the restriction by the restriction member,
The restriction release convex part moves the restriction member from the narrow part to the wide part against the urging force of the urging member when the sun gear is rotated by the sun gear operation member. The reclining device according to claim 1, wherein the reclining device is configured to release the restriction.
前記太陽ギア操作部材は、前記太陽ギアを押圧して回動させる押圧操作部を備え、
前記規制解除凸部は、前記太陽ギア操作部材による前記太陽ギアの回動操作に際し、前記押圧操作部が前記太陽ギアを押圧する前に前記規制部材を前記幅狭部から前記幅広部へ押圧移動させ得るように構成されていることを特徴とする請求項2記載のリクライニング装置。
The sun gear operation member includes a pressing operation unit that presses and rotates the sun gear,
When the sun gear is rotated by the sun gear operation member, the restriction release convex portion moves the restriction member from the narrow portion to the wide portion before the pressing operation portion presses the sun gear. The reclining device according to claim 2, wherein the reclining device is configured to be able to be made.
前記規制部材は、その軸心部に係止用孔を有する円筒状のものから構成され、
前記付勢部材は、リング状の付勢部材本体と、前記付勢部材本体の第1端に設けられ前記太陽ギアに係止された太陽ギア係止部と、前記付勢部材本体の第2端に設けられ前記規制部材の係止用孔に係止された規制部材係止部とを備えていることを特徴とする請求項1〜3の何れか一項に記載のリクライニング装置。
The restricting member is composed of a cylindrical member having a locking hole in its axial center,
The biasing member includes a ring-shaped biasing member main body, a sun gear locking portion provided at a first end of the biasing member main body and locked to the sun gear, and a second of the biasing member main body. The reclining device according to any one of claims 1 to 3, further comprising a regulating member locking portion provided at an end and locked in a locking hole of the regulating member.
JP2011258026A 2011-11-25 2011-11-25 Reclining device Pending JP2013112065A (en)

Priority Applications (4)

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JP2011258026A JP2013112065A (en) 2011-11-25 2011-11-25 Reclining device
US13/679,240 US8579756B2 (en) 2011-11-25 2012-11-16 Reclining mechanism
EP12193667.8A EP2596984A1 (en) 2011-11-25 2012-11-21 Reclining mechanism
CN201210484063XA CN103129420A (en) 2011-11-25 2012-11-23 Reclining mechanism

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Citations (8)

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Publication number Priority date Publication date Assignee Title
US3893206A (en) * 1974-04-10 1975-07-08 Ferro Mfg Corp Seat reclining assembly
JPS5690151U (en) * 1980-12-02 1981-07-18
JPH02104326A (en) * 1988-10-14 1990-04-17 Kumaki Nobuyoshi Speed reduction device for rotary brush
JP2000225032A (en) * 1999-02-04 2000-08-15 Fuji Kiko Co Ltd Seat adjusting device
US20030173810A1 (en) * 2002-03-14 2003-09-18 Lee Won Young Seat reclining device for vehicle
JP2004218656A (en) * 2003-01-09 2004-08-05 Imasen Electric Ind Co Ltd Reduction gear and reclining device
JP2006034967A (en) * 2004-07-27 2006-02-09 Fisher Dynamics Corp Constantly engaged rotary recliner mechanism
JP2011125425A (en) * 2009-12-16 2011-06-30 Toyota Boshoku Corp Connecting device of vehicle seat

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893206A (en) * 1974-04-10 1975-07-08 Ferro Mfg Corp Seat reclining assembly
JPS5690151U (en) * 1980-12-02 1981-07-18
JPH02104326A (en) * 1988-10-14 1990-04-17 Kumaki Nobuyoshi Speed reduction device for rotary brush
JP2000225032A (en) * 1999-02-04 2000-08-15 Fuji Kiko Co Ltd Seat adjusting device
US20030173810A1 (en) * 2002-03-14 2003-09-18 Lee Won Young Seat reclining device for vehicle
JP2004218656A (en) * 2003-01-09 2004-08-05 Imasen Electric Ind Co Ltd Reduction gear and reclining device
JP2006034967A (en) * 2004-07-27 2006-02-09 Fisher Dynamics Corp Constantly engaged rotary recliner mechanism
JP2011125425A (en) * 2009-12-16 2011-06-30 Toyota Boshoku Corp Connecting device of vehicle seat

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