JP2009183522A - Reclining device - Google Patents

Reclining device Download PDF

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JP2009183522A
JP2009183522A JP2008027362A JP2008027362A JP2009183522A JP 2009183522 A JP2009183522 A JP 2009183522A JP 2008027362 A JP2008027362 A JP 2008027362A JP 2008027362 A JP2008027362 A JP 2008027362A JP 2009183522 A JP2009183522 A JP 2009183522A
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wedge
reclining device
support
support hole
locking spring
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JP5298554B2 (en
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Atsutaka Mihashi
篤敬 三橋
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Toyota Boshoku Corp
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Toyota Boshoku Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a reclining device which has a structure of reducing a sound made when an unlocking member contacts with a wedge and has a constitution wherein a locking spring hardly comes off from the wedge. <P>SOLUTION: The reclining device 1 includes an outer tooth member 2 having outer teeth 2a and inner tooth member 3 having inner teeth 3a larger in number than the outer teeth 2a. By fitting the outer teeth 2a and the inner teeth 3a, the outer tooth member 2 and the inner tooth member 3 rotate relative to each other while eccentrically intermeshing with each other. The device has a support hole 2c formed in the outer tooth member 2, a support projecting part 3d formed in the inner tooth member 3 and getting into the support hole 2c, the wedge 4 provided between the support hole 2c and the support projecting part 3d, a locking spring 5 which pushes the wedge 4 between the wall surface of the support hole 2c and the support projecting part 3d, and the unlocking member 6 pushing the wedge 4 against the locking spring 5. Between the unlocking member 6 and the wedge 4, a resilient member 7 formed separately from the locking spring 5 and easing a shock of the unlocking member 6 to the wedge 4. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、シートバックとシートクッションの間に設けられ、これらを角度調整可能に連結するリクライニング装置に関する。特に無段階で角度調整することのできるリクライニング装置に関する。   The present invention relates to a reclining device that is provided between a seat back and a seat cushion and connects them so that the angle can be adjusted. In particular, the present invention relates to a reclining device capable of adjusting the angle steplessly.

従来、無段階で角度調整することのできるリクライニング装置が知られている（特許文献１参照）。この種のリクライニング装置は、外周面に外歯を有する外歯部材と、内周面に外歯よりも数の多い内歯を有する内歯部材を有しており、外歯と内歯を噛合わせることでこれら両歯部材が偏心した状態で噛合い、外歯部材が内歯部材に対して自転しつつ公転することで、両歯部材の相対的な回転角度が変化する。その結果、シートバックがシートクッションに対して角度調整される。   2. Description of the Related Art Conventionally, a reclining device that can adjust an angle steplessly is known (see Patent Document 1). This type of reclining device has an external tooth member having external teeth on the outer peripheral surface and an internal tooth member having internal teeth having a larger number of external teeth on the inner peripheral surface, and bites the external teeth and internal teeth. By combining these teeth, the both tooth members are engaged in an eccentric state, and the outer tooth member revolves while rotating with respect to the inner tooth member, whereby the relative rotation angle of both tooth members changes. As a result, the angle of the seat back is adjusted with respect to the seat cushion.

また外歯部材には、略中央に支持穴が形成されており、支持穴には、内歯部材の略中央に円筒状に形成された支持突部が突入される。そして支持穴と支持突部の間に円弧状の楔が設置され、楔をロック用ばねによって支持穴の壁面と支持突部の間に押し込むことで、両歯部材が回転不能になる。そしてロック解除部材によって楔をロック用ばねに抗して押すことで両歯部材が相対回転可能なロック解除状態になる。このロック解除部材は、ロック用ばねに向けて突出する突起を有しており、ロック用ばねは、その突起に当る抵抗受部を有している。したがってロック解除部材を回動させると、突起がロック用ばねの抵抗受部からばね力を受ける。そのため楔に当った瞬間にロック解除部材の回動トルクが急激に大きくなることが防止され得る。かくしてロック解除部材の操作性が向上したり、ロック解除部材が楔に当る際における音を小さくしたりすることができる。
特開平７−２８４４２３号公報 Further, the outer tooth member has a support hole formed substantially at the center, and a support protrusion formed in a cylindrical shape is inserted into the support hole approximately at the center of the inner tooth member. Then, an arcuate wedge is installed between the support hole and the support protrusion, and both the toothed members cannot be rotated by pushing the wedge between the wall surface of the support hole and the support protrusion by a locking spring. Then, by pushing the wedge against the locking spring by the unlocking member, the both tooth members are brought into the unlocked state in which the two tooth members can be rotated relative to each other. The lock release member has a protrusion protruding toward the lock spring, and the lock spring has a resistance receiving portion that hits the protrusion. Therefore, when the unlocking member is rotated, the protrusion receives a spring force from the resistance receiving portion of the locking spring. Therefore, it is possible to prevent the turning torque of the unlocking member from increasing suddenly at the moment of hitting the wedge. Thus, the operability of the unlocking member can be improved, and the sound when the unlocking member hits the wedge can be reduced.
JP-A-7-284423

しかしロック用ばねは、ロック解除部材の突起から力を受けて変形するのみならず、ロック解除部材によって楔が押された際にも変形する。そのためロック用ばねの変形量が多くなって、ロック用ばねが楔から外れるおそれがあった。そこで本発明は、ロック解除部材が楔に当る際の音を小さくする構造を有し、かつロック用ばねが楔から外れ難い構成を有するリクライニング装置を提供することを課題とする。   However, the locking spring is not only deformed by receiving a force from the protrusion of the unlocking member, but also deformed when the wedge is pushed by the unlocking member. As a result, the amount of deformation of the locking spring increases, and the locking spring may come off the wedge. Therefore, an object of the present invention is to provide a reclining device having a structure that reduces the sound when the unlocking member hits the wedge, and has a configuration in which the locking spring is difficult to come off the wedge.

前記課題を解決するために本発明は、各請求項に記載の通りの構成を備えるリクライニング装置であることを特徴とする。すなわち請求項１に記載の発明によると、偏心した状態で噛合いつつ相対的に回転する外歯部材と内歯部材の両歯部材を有している。そして両歯部材の一方の略中央位置に形成された支持穴と、両歯部材の他方の略中央位置に形成されかつ支持穴に突入する支持突部と、これら支持穴と支持突部の間に設けられる楔と、楔を支持穴の壁面と支持突部との間に押し込むことで両歯部材を回転不能にロックするロック用ばねと、ロック用ばねに抗して楔を押すことで両歯部材を相対回転可能にするロック解除部材を有している。そしてロック解除部材と楔の間には、ロック用ばねと別体に形成されかつロック解除部材の楔への衝撃を和らげる弾性部材が設けられている。   In order to solve the above-described problems, the present invention is a reclining device having a configuration as described in each claim. That is, according to the first aspect of the present invention, it has both the external tooth member and the internal tooth member that rotate relative to each other while meshing in an eccentric state. And a support hole formed at one approximately center position of both tooth members, a support protrusion formed at the other approximately center position of both tooth members and entering the support hole, and between the support holes and the support protrusions A wedge provided on the support hole, a locking spring that locks both tooth members in a non-rotatable state by pushing the wedge between the wall surface of the support hole and the support protrusion, and both the wedges by pressing the wedge against the lock spring. It has the unlocking member which makes a tooth member relatively rotatable. An elastic member is provided between the unlocking member and the wedge and is formed separately from the locking spring and softens the impact of the unlocking member on the wedge.

したがってロック解除する場合は、ロック解除部材が楔に向けて移動して弾性部材が弾性変形する。そのため弾性部材の弾性力によってロック解除部材の楔への衝撃が和らげられ、ロック解除部材と楔の間に生じ得る音を小さくすることができる。また弾性部材は、ロック用ばねと別体に形成されている。そのためロック用ばねは、衝撃和らげのために弾性変形することがなく、衝撃和らげのために大きく弾性変形して楔から外れてしまうことが防止され得る。   Therefore, when unlocking, the unlocking member moves toward the wedge and the elastic member is elastically deformed. Therefore, the impact of the unlocking member on the wedge is reduced by the elastic force of the elastic member, and the sound that can be generated between the unlocking member and the wedge can be reduced. The elastic member is formed separately from the lock spring. Therefore, the lock spring is not elastically deformed for impact reduction, and can be prevented from being greatly elastically deformed for impact reduction and coming off the wedge.

請求項２に記載の発明によると、弾性部材は、ロック用ばねよりも小さいばね力を有するばねで構成されている。したがってロック解除する場合は、ロック解除部材によって弾性部材が弾性変形し、続いてロック用ばねが弾性変形する。そのため二つのばね力によってスムーズな操作性を得ることができ、かつ好適にロック解除部材と楔の間に生じ得る音を小さくすることができる。   According to invention of Claim 2, the elastic member is comprised with the spring which has a spring force smaller than the spring for a lock | rock. Therefore, when the lock is released, the elastic member is elastically deformed by the lock releasing member, and then the lock spring is elastically deformed. Therefore, smooth operability can be obtained by the two spring forces, and the sound that can be preferably generated between the unlocking member and the wedge can be reduced.

請求項３に記載の発明によると、弾性部材は、支持穴と支持突部の間でかつ楔とロック解除部材の間に配設される。したがってこれらの隙間を利用して弾性部材を設置するために弾性部材が安定良く収まる。そして装置を大きくすることなく、弾性部材を設けることが可能である。   According to the third aspect of the present invention, the elastic member is disposed between the support hole and the support protrusion and between the wedge and the unlocking member. Therefore, since the elastic member is installed using these gaps, the elastic member can be stably accommodated. And it is possible to provide an elastic member without enlarging an apparatus.

請求項４に記載の発明によると、支持穴と支持突部の間に一対の円弧状の楔が設けられる。一対の楔の一端部間をロック用ばねによって離間する方向に付勢する。一対の楔の他端部間にロック解除部材の楔押部が配設される。そして楔押部と各楔との間に弾性部材が設けられる。したがってリクライニング装置は、ロック解除部材をいずれの方向に回動させてもロック解除され得る。そしていずれの回動方向においても弾性部材が弾性変形するため、ロック解除部材と楔の間に生じ得る音を小さくすることができる。   According to the fourth aspect of the present invention, a pair of arcuate wedges are provided between the support hole and the support protrusion. The pair of wedges is biased in a direction away from each other by a locking spring. A wedge pressing portion of the unlocking member is disposed between the other ends of the pair of wedges. An elastic member is provided between the wedge pressing portion and each wedge. Therefore, the reclining device can be unlocked by rotating the unlocking member in any direction. Since the elastic member is elastically deformed in any rotation direction, the sound that can be generated between the lock release member and the wedge can be reduced.

（実施の形態１）
実施の形態１を図１〜４にしたがって説明する。乗物用シート１０は、図１に示すように車両等の乗物に搭載されるシートであって、シートクッション１１とシートバック１２を有している。シートクッション１１とシートバック１２は、フレーム１１ａ，１２ａを有している。そしてフレーム１１ａ、１２ａの間には、シートバック１２をシートクッション１１に対して角度調整可能に連結するためのリクライニング装置１が設けられている。 (Embodiment 1)
The first embodiment will be described with reference to FIGS. As shown in FIG. 1, the vehicle seat 10 is a seat mounted on a vehicle such as a vehicle, and includes a seat cushion 11 and a seat back 12. The seat cushion 11 and the seat back 12 have frames 11a and 12a. A reclining device 1 for connecting the seat back 12 to the seat cushion 11 so as to be adjustable in angle is provided between the frames 11a and 12a.

リクライニング装置１は、図２，３に示すように外歯部材２と内歯部材３とこれらを回動可能に取付けるかしめリング８を有している。外歯部材２は、外周面に外歯２ａを有する環状本体２ｂと、フランジ２ｄを有している。環状本体２ｂの中心には、円孔状の支持穴２ｃが形成されている。フランジ２ｄは、環状本体２ｂの側部に一体に設けられ、環状本体２ｂよりも大きな径を有する環形状を有している。フランジ２ｄには、フレーム１１ａの取付孔１１ａ１に嵌合される複数の取付凸部２ｅが形成されている。   As shown in FIGS. 2 and 3, the reclining device 1 includes an outer tooth member 2, an inner tooth member 3, and a caulking ring 8 that rotatably attaches these members. The external tooth member 2 has an annular main body 2b having external teeth 2a on the outer peripheral surface and a flange 2d. A circular support hole 2c is formed at the center of the annular main body 2b. The flange 2d is provided integrally with a side portion of the annular main body 2b and has an annular shape having a larger diameter than the annular main body 2b. The flange 2d is formed with a plurality of mounting projections 2e that are fitted into the mounting holes 11a1 of the frame 11a.

内歯部材３は、図２，３に示すように内周面に内歯３ａを有する環状本体３ｂと、底体３ｃを有している。環状本体３ｂの内周径は、外歯部材２の環状本体２ｂの外周径よりも大きく、内歯３ａの数は、外歯２ａの数よりも多い。したがって内歯部材３の内周側に外歯部材２の環状本体２ｂが偏心した状態で設置されて、数個の外歯２ａが数個の内歯３ａに噛合う。したがって外歯部材２が内歯部材３に対して自転しつつ公転することで、外歯部材２と内歯部材３の相対的な回転角度が変化する。これによりシートクッション１１とシートバック１２の間の相対角度を変化させることができる。   As shown in FIGS. 2 and 3, the internal tooth member 3 includes an annular main body 3b having internal teeth 3a on the inner peripheral surface and a bottom body 3c. The inner peripheral diameter of the annular main body 3b is larger than the outer peripheral diameter of the annular main body 2b of the outer tooth member 2, and the number of inner teeth 3a is larger than the number of outer teeth 2a. Therefore, the annular main body 2b of the external tooth member 2 is installed in an eccentric state on the inner peripheral side of the internal tooth member 3, and several external teeth 2a mesh with the several internal teeth 3a. Therefore, when the external tooth member 2 revolves while rotating with respect to the internal tooth member 3, the relative rotation angle of the external tooth member 2 and the internal tooth member 3 changes. Thereby, the relative angle between the seat cushion 11 and the seat back 12 can be changed.

内歯部材３の底体３ｃは、図２，３に示すように環状本体３ｂの側部に一体に設けられ、環状本体３ｂよりも小さな径を有する円盤形状を有している。底体３ｃには、フレーム１２ａに形成された取付孔１２ａ１に嵌合される複数の取付凸部３ｅが形成されている。底体３ｃの中央位置には、円筒状の支持突部３ｄが形成されている。支持突部３ｄは、外歯部材２の支持穴２ｃに突出される。   As shown in FIGS. 2 and 3, the bottom body 3c of the internal tooth member 3 is provided integrally with the side portion of the annular main body 3b and has a disk shape having a smaller diameter than the annular main body 3b. The bottom body 3c is formed with a plurality of mounting projections 3e that are fitted into mounting holes 12a1 formed in the frame 12a. A cylindrical support protrusion 3d is formed at the center of the bottom body 3c. The support protrusion 3 d protrudes into the support hole 2 c of the external tooth member 2.

支持穴２ｃと支持突部３ｄは、図４に示すように外歯部材２と内歯部材３が偏心した状態で噛合うために偏心する。したがって支持穴２ｃと支持突部３ｄの間には、広い隙間部（図４上側）と狭い隙間部（図４下側）が形成される。そして内歯部材３と外歯部材２は、図３，４に示すようにかしめリング８のかしめ部８ａを折り曲げることで回転可能に連結される。   As shown in FIG. 4, the support hole 2 c and the support protrusion 3 d are eccentric because the external tooth member 2 and the internal tooth member 3 mesh with each other in an eccentric state. Therefore, a wide gap (upper side in FIG. 4) and a narrow gap (lower side in FIG. 4) are formed between the support hole 2c and the support protrusion 3d. The inner tooth member 3 and the outer tooth member 2 are rotatably connected by bending the caulking portion 8a of the caulking ring 8 as shown in FIGS.

楔４は、図３，４に示すように円弧状であって、支持穴２ｃと支持突部３ｄの間に設置される。楔４は、一端部に掛止部４ａを有しており、他端部に先細り部４ｂを有している。先細り部４ｂは、先端ほど細く、支持穴２ｃと支持突部３ｄの狭い隙間側に向けて食い込み得る構成になっている。掛止部４ａは、他方の楔４に向けて突出しており、ロック用ばね５の掛止部５ａが掛け止められる。   The wedge 4 has an arc shape as shown in FIGS. 3 and 4, and is installed between the support hole 2c and the support protrusion 3d. The wedge 4 has a hooking portion 4a at one end and a tapered portion 4b at the other end. The tapered portion 4b is thinner toward the tip, and is configured to bite toward the narrow gap between the support hole 2c and the support protrusion 3d. The latching portion 4a protrudes toward the other wedge 4, and the latching portion 5a of the locking spring 5 is latched.

ロック用ばね５は、図３，４に示すように円弧状であって、両端部に掛止部５ａを有している。このロック用ばね５は、弾性変形されつつ掛止部５ａが楔４に掛け止められることで一対の楔４の一端部間を離間する方向に楔４を付勢し、先細り部４ｂを支持穴２ｃの壁面と支持突部３ｄとの間に押し込む。したがって楔４によって外歯２ａと内歯３ａのバックラッシュが０になり、外歯部材２と内歯部材３が相互に回転不能になる。これによりリクライニング装置１がロック状態になって、シートバック１２がシートクッション１１に対してロックされる。   As shown in FIGS. 3 and 4, the lock spring 5 has an arc shape and has latching portions 5 a at both ends. The lock spring 5 is elastically deformed and the latching portion 5a is latched on the wedge 4 to urge the wedge 4 in a direction to separate one end portion of the pair of wedges 4, and the tapered portion 4b is supported in the support hole. It pushes in between the wall surface of 2c, and the support protrusion 3d. Therefore, the backlash between the outer teeth 2a and the inner teeth 3a is reduced to 0 by the wedge 4, and the outer teeth member 2 and the inner teeth member 3 cannot rotate relative to each other. As a result, the reclining device 1 is locked, and the seat back 12 is locked to the seat cushion 11.

リクライニング装置１は、図３，４に示すようにロックを解除するためのロック解除部材６を有している。ロック解除部材６は、取付軸部６ａとスプライン軸部６ｄとフランジ部６ｂを有している。取付軸部６ａは、円柱状であって、内歯部材３の支持突部３ｄの中心孔に挿通される。スプライン軸部６ｄは、取付軸部６ａの軸線上に延びており、外周面に軸方向に延出する溝を有している。そしてスプライン軸部６ｄには、図示省略のモータや操作レバーなどがスプライン嵌合される。   The reclining device 1 has a lock release member 6 for releasing the lock as shown in FIGS. The lock release member 6 has an attachment shaft portion 6a, a spline shaft portion 6d, and a flange portion 6b. The attachment shaft portion 6 a is cylindrical and is inserted through the center hole of the support protrusion 3 d of the internal tooth member 3. The spline shaft portion 6d extends on the axis of the mounting shaft portion 6a, and has a groove extending in the axial direction on the outer peripheral surface. A motor, an operation lever, etc. (not shown) are spline-fitted to the spline shaft portion 6d.

フランジ部６ｂは、図３，４に示すように取付軸部６ａとスプライン軸部６ｄの間位置に形成されている。フランジ部６ｂは、円盤形状であって、楔４を覆うことで楔４が支持穴２ｃから脱落することを防止する。フランジ部６ｂの外歯部材２側の面には、楔押部６ｃが突設されている。楔押部６ｃは、フランジ部６ｂの外周に沿う円弧形状を有しており、支持穴２ｃと支持突部３ｄの間に回動可能に設置される。   As shown in FIGS. 3 and 4, the flange portion 6b is formed at a position between the mounting shaft portion 6a and the spline shaft portion 6d. The flange portion 6b has a disk shape and covers the wedge 4 to prevent the wedge 4 from falling off the support hole 2c. On the surface of the flange portion 6b on the external tooth member 2 side, a wedge pressing portion 6c is projected. The wedge pressing portion 6c has an arc shape along the outer periphery of the flange portion 6b, and is rotatably installed between the support hole 2c and the support protrusion 3d.

楔押部６ｃと楔４の間には、図３，４に示すように弾性部材７が設置される。弾性部材７は、屈曲された板ばねであって、支持穴２ｃの壁面と支持突部３ｄの間で、かつ楔押部６ｃと楔４の間の隙間に収められる。そして弾性部材７は、ロック用ばね５のばね力よりも小さいばね力を有している。   As shown in FIGS. 3 and 4, an elastic member 7 is installed between the wedge pressing portion 6 c and the wedge 4. The elastic member 7 is a bent leaf spring, and is accommodated in the gap between the wall surface of the support hole 2 c and the support protrusion 3 d and between the wedge pressing portion 6 c and the wedge 4. The elastic member 7 has a spring force smaller than the spring force of the lock spring 5.

したがってモータや操作レバーによってロック解除部材６を回転させると、楔押部６ｃが支持穴２ｃと支持突部３ｄの間に沿って回転する。そして弾性部材７の一つが弾性変形して、弾性部材７を介して楔４がロック解除部材６から力を受ける。そして楔４は、ロック用ばね５を弾性変形させつつ支持穴２ｃの壁面と支持突部３ｄに押し込まれた状態から解除される。これによりリクライニング装置１がロック解除状態になる。   Therefore, when the lock release member 6 is rotated by the motor or the operation lever, the wedge pressing portion 6c rotates along the space between the support hole 2c and the support protrusion 3d. One of the elastic members 7 is elastically deformed, and the wedge 4 receives a force from the lock releasing member 6 through the elastic member 7. The wedge 4 is released from the state where it is pushed into the wall surface of the support hole 2c and the support protrusion 3d while elastically deforming the lock spring 5. As a result, the reclining device 1 enters the unlocked state.

さらにロック解除部材６を回転させると、一方の楔４が他方の楔４を押す。これにより他方の楔４が支持穴２ｃの壁面を押し、外歯部材２が内歯部材３に対して自転しつつ公転する。その結果、外歯部材２と内歯部材３の相対角度が変化する。そして所定の相対角度になった後に、ロック解除部材６に付与していた力を解放することで、ロック用ばね５の付勢力によって一対の楔４が支持穴２ｃの壁面と支持突部３ｄの間に押し込まれる。これによりリクライニング装置１がロック状態になる。かくしてリクライニング装置１によってシートバック１２とシートクッション１１の相対角度が無段階で調整され得る。   When the unlocking member 6 is further rotated, one wedge 4 pushes the other wedge 4. As a result, the other wedge 4 presses the wall surface of the support hole 2 c, and the outer tooth member 2 revolves while rotating with respect to the inner tooth member 3. As a result, the relative angle between the outer tooth member 2 and the inner tooth member 3 changes. Then, after the predetermined relative angle is reached, the force applied to the unlocking member 6 is released, so that the pair of wedges 4 are moved between the wall surface of the support hole 2c and the support protrusion 3d by the biasing force of the lock spring 5. It is pushed in between. Thereby, the reclining apparatus 1 will be in a locked state. Thus, the relative angle between the seat back 12 and the seat cushion 11 can be adjusted steplessly by the reclining device 1.

以上のように、ロック解除部材６と楔４の間には、図４に示すようにロック用ばね５と別体に形成されかつロック解除部材６の楔４への衝撃を和らげる弾性部材７が設けられている。したがってロック解除する場合は、ロック解除部材６が楔４に向けて移動して弾性部材７が弾性変形する。そのため弾性部材７の弾性力によってロック解除部材６の楔４への衝撃が和らげられ、ロック解除部材６と楔４の間に生じ得る音を小さくすることができる。また弾性部材７は、ロック用ばね５と別体に形成されている。そのためロック用ばね５は、衝撃和らげのために弾性変形することがなく、衝撃和らげのために大きく弾性変形して楔４から外れてしまうことが防止され得る。   As described above, between the lock release member 6 and the wedge 4, as shown in FIG. 4, the elastic member 7 is formed separately from the lock spring 5 and reduces the impact of the lock release member 6 on the wedge 4. Is provided. Therefore, when unlocking, the unlocking member 6 moves toward the wedge 4 and the elastic member 7 is elastically deformed. Therefore, the impact of the unlocking member 6 on the wedge 4 is reduced by the elastic force of the elastic member 7, and the sound that can be generated between the unlocking member 6 and the wedge 4 can be reduced. The elastic member 7 is formed separately from the lock spring 5. Therefore, the lock spring 5 is not elastically deformed for impact reduction, and it can be prevented that the lock spring 5 is greatly elastically deformed for impact reduction and detached from the wedge 4.

また弾性部材７は、ロック用ばね５よりも小さいばね力を有するばねで構成されている。したがってロック解除する場合は、ロック解除部材６によって弾性部材７が弾性変形し、続いてロック用ばね５が弾性変形する。そのため二つのばね力によってスムーズな操作性を得ることができ、かつ好適にロック解除部材６と楔４の間に生じ得る音を小さくすることができる。   The elastic member 7 is configured by a spring having a smaller spring force than the lock spring 5. Therefore, when the lock is released, the elastic member 7 is elastically deformed by the lock releasing member 6, and then the lock spring 5 is elastically deformed. Therefore, smooth operability can be obtained by the two spring forces, and the sound that can be preferably generated between the unlocking member 6 and the wedge 4 can be reduced.

また弾性部材７は、図４に示すように支持穴２ｃと支持突部３ｄの間でかつ楔４とロック解除部材６の間に配設される。したがってこれらの隙間を利用して弾性部材７を設置するために弾性部材７が安定良く収まる。そして装置を大きくすることなく、弾性部材７を設けることが可能である。   The elastic member 7 is disposed between the support hole 2c and the support protrusion 3d and between the wedge 4 and the lock release member 6 as shown in FIG. Therefore, since the elastic member 7 is installed using these gaps, the elastic member 7 can be stably stored. And it is possible to provide the elastic member 7 without enlarging an apparatus.

またリクライニング装置１は、図４に示すように一対の楔４と、一対の弾性部材７を有している。したがってリクライニング装置１は、ロック解除部材６をいずれの方向に回動させてもロック解除され得る。そしていずれの回動方向においても弾性部材７が弾性変形するため、ロック解除部材６と楔４の間に生じ得る音を小さくすることができる。   The reclining device 1 includes a pair of wedges 4 and a pair of elastic members 7 as shown in FIG. Therefore, the reclining device 1 can be unlocked by rotating the unlocking member 6 in any direction. Since the elastic member 7 is elastically deformed in any rotation direction, the sound that can be generated between the lock release member 6 and the wedge 4 can be reduced.

また弾性部材７は、図４に示すようにロック状態において楔４と楔押部６ｃの両方に当接している。したがってロック状態からロック解除状態にする際において、楔４と楔押部６ｃの間には、常に弾性部材７の弾性力が発生する。したがってロック解除部材６の操作トルクが急激に変化することが防止され得る。そしてロック解除部材６が空回りすることによる操作性の悪化を防止することができる。   As shown in FIG. 4, the elastic member 7 is in contact with both the wedge 4 and the wedge pressing portion 6c in the locked state. Therefore, when changing from the locked state to the unlocked state, the elastic force of the elastic member 7 is always generated between the wedge 4 and the wedge pressing portion 6c. Therefore, it is possible to prevent the operating torque of the unlocking member 6 from changing suddenly. And the deterioration of operativity by the lock release member 6 idling can be prevented.

（実施の形態２）
実施の形態２は、実施の形態１とほぼ同様に形成されている。しかし実施の形態２は、図４に示す弾性部材７に代えて図５に示す弾性部材１７を有している点において実施の形態１と相違している。実施の形態２の弾性部材１７は、図５に示すようにコイルばねであって、支持穴２ｃの壁面と支持突部３ｄの間であって、かつ楔押部６ｃと楔４の間に設置される。そして弾性部材１７のばね力は、ロック用ばね５のばね力よりも小さくなるように設定されている。 (Embodiment 2)
The second embodiment is formed in substantially the same manner as the first embodiment. However, the second embodiment is different from the first embodiment in that the elastic member 17 shown in FIG. 5 is provided instead of the elastic member 7 shown in FIG. The elastic member 17 according to the second embodiment is a coil spring as shown in FIG. 5, and is installed between the wall surface of the support hole 2 c and the support protrusion 3 d and between the wedge pressing part 6 c and the wedge 4. Is done. The spring force of the elastic member 17 is set to be smaller than the spring force of the lock spring 5.

（実施の形態３）
実施の形態３は、実施の形態１とほぼ同様に形成されている。しかし実施の形態３は、図４に示す弾性部材７に代えて図６に示す弾性部材１８を有している点において実施の形態１と相違している。実施の形態３の弾性部材７は、弾性力のある樹脂またはゴムから形成されており、係合部６ｃ１を有している。係合部６ｃ１は、楔押部６ｃの端部に形成された係合部６ｃ１に係合される。そして弾性部材７は、楔押部６ｃとともに支持穴２ｃの壁面と支持突部３ｄの間で、かつ楔押部６ｃと楔４の間に設置される。 (Embodiment 3)
The third embodiment is formed in substantially the same manner as the first embodiment. However, the third embodiment is different from the first embodiment in that the elastic member 18 shown in FIG. 6 is provided instead of the elastic member 7 shown in FIG. The elastic member 7 according to the third embodiment is made of an elastic resin or rubber and has an engaging portion 6c1. The engaging portion 6c1 is engaged with an engaging portion 6c1 formed at the end of the wedge pressing portion 6c. The elastic member 7 is installed between the wedge pressing portion 6 c and the wall surface of the support hole 2 c and the support protrusion 3 d, and between the wedge pressing portion 6 c and the wedge 4.

（他の実施の形態）
本発明は、実施の形態１〜３に限定されず、以下の形態等であっても良い。
（１）すなわち実施の形態１〜３の支持穴２ｃは、外歯部材２に形成され、支持突部３ｄは、内歯部材３に形成されていた。しかし支持穴が内歯部材に形成され、支持突部が外歯部材に形成される形態であっても良い。
（２）実施の形態１〜３は、一対の楔４と一対の弾性部材７，１７，１８を有していた。しかし楔と弾性部材を一つずつ有する形態であっても良い。
（３）実施の形態１〜３の弾性部材７，１７，１８は、支持穴２ｃの壁面と支持突部３ｄの間に設置されていた。しかし支持穴２ｃの外において楔押部６ｃと楔４を連結する弾性部材であっても良い。
（４）上記実施の形態のリクライニング装置１は、乗物用シート１０に限定されず、種々なタイプの椅子およびシートに用いても良い。
（５）上記実施の形態３は、楔押部６ｃに弾性部材１８が取付けられていた。しかし楔側に弾性部材が取付けられる形態であっても良い。 (Other embodiments)
The present invention is not limited to the first to third embodiments, and may be the following forms.
(1) That is, the support holes 2 c of the first to third embodiments are formed in the external tooth member 2, and the support protrusion 3 d is formed in the internal tooth member 3. However, the support hole may be formed in the internal tooth member, and the support protrusion may be formed in the external tooth member.
(2) The first to third embodiments have a pair of wedges 4 and a pair of elastic members 7, 17, 18. However, it may be a form having one wedge and one elastic member.
(3) The elastic members 7, 17, and 18 of the first to third embodiments are installed between the wall surface of the support hole 2c and the support protrusion 3d. However, it may be an elastic member that connects the wedge pressing portion 6c and the wedge 4 outside the support hole 2c.
(4) The reclining device 1 of the above embodiment is not limited to the vehicle seat 10 and may be used for various types of chairs and seats.
(5) In the third embodiment, the elastic member 18 is attached to the wedge pressing portion 6c. However, a configuration in which the elastic member is attached to the wedge side may be employed.

乗物用シートの側面図である。It is a side view of a vehicle seat. リクライニング装置の分解斜視図とフレームの一部斜視図である。It is an exploded perspective view of a reclining device, and a partial perspective view of a frame. リクライニング装置の分解斜視図である。It is a disassembled perspective view of a reclining apparatus. リクライニング装置の断面図である。It is sectional drawing of a reclining apparatus. 図４に相当する実施の形態２のリクライニング装置の断面図である。It is sectional drawing of the reclining apparatus of Embodiment 2 corresponded in FIG. 図４に相当する実施の形態３のリクライニング装置の断面図である。It is sectional drawing of the reclining apparatus of Embodiment 3 corresponded in FIG.

符号の説明Explanation of symbols

１…リクライニング装置
２…外歯部材
２ａ…外歯
２ｃ…支持穴
３…内歯部材
３ａ…内歯
３ｄ…支持突部
４…楔
５…ロック用ばね
６…ロック解除部材
６ｃ…楔押部
７，１７，１８…弾性部材
８…かしめリング
１０…乗物用シート
１１…シートクッション
１２…シートバック

DESCRIPTION OF SYMBOLS 1 ... Reclining device 2 ... External tooth member 2a ... External tooth 2c ... Support hole 3 ... Internal tooth member 3a ... Internal tooth 3d ... Support protrusion 4 ... Wedge 5 ... Locking spring 6 ... Lock release member 6c ... Wedge pushing part 7 , 17, 18 ... elastic member 8 ... caulking ring 10 ... vehicle seat 11 ... seat cushion 12 ... seat back

Claims (4)

シートバックとシートクッションの間に設けられ、これらを角度調整可能に連結するリクライニング装置であって、
外周面に外歯を有する外歯部材と、内周面に前記外歯よりも数が多い内歯を有する内歯部材を有し、前記外歯と前記内歯を噛合わせることで前記外歯部材と前記内歯部材の両歯部材が偏心した状態で噛合いつつ相対的に回転し、
前記両歯部材の一方の略中央位置に形成された支持穴と、前記両歯部材の他方の略中央位置に形成されかつ前記支持穴に突入する支持突部と、これら支持穴と支持突部の間に設けられる楔と、前記楔を前記支持穴の壁面と前記支持突部との間に押し込むことで前記両歯部材を回転不能にロックするロック用ばねと、前記ロック用ばねに抗して前記楔を押すことで前記両歯部材を相対回転可能にするロック解除部材とを有し、
前記ロック解除部材と前記楔の間には、前記ロック用ばねと別体に形成されかつ前記ロック解除部材の前記楔への衝撃を和らげる弾性部材が設けられていることを特徴とするリクライニング装置。 A reclining device that is provided between a seat back and a seat cushion and connects them so that the angle can be adjusted,
An external tooth member having external teeth on the outer peripheral surface, an internal tooth member having internal teeth having a larger number than the external teeth on the internal peripheral surface, and the external teeth by meshing the external teeth with the internal teeth Rotating relatively while engaging both the member and the internal teeth member in an eccentric state,
A support hole formed at one approximately central position of the both tooth members; a support protrusion formed at the other approximately center position of the both tooth members and entering the support hole; and the support holes and the support protrusions A wedge provided between the locking member, a locking spring that locks both the tooth members in a non-rotatable state by pushing the wedge between the wall surface of the supporting hole and the supporting projection, and resists the locking spring. A lock release member that allows the both tooth members to rotate relative to each other by pushing the wedge.
A reclining device, characterized in that an elastic member is provided between the unlocking member and the wedge, which is formed separately from the locking spring and softens the impact of the unlocking member on the wedge. 請求項１に記載のリクライニング装置であって、
弾性部材は、ロック用ばねよりも小さいばね力を有するばねで構成されていることを特徴とするリクライニング装置。 The reclining device according to claim 1,
The reclining device, wherein the elastic member is constituted by a spring having a smaller spring force than the locking spring. 請求項１または２に記載のリクライニング装置であって、
弾性部材は、支持穴と支持突部の間でかつ楔とロック解除部材の間に配設されていることを特徴とするリクライニング装置。 The reclining device according to claim 1 or 2,
The reclining device, wherein the elastic member is disposed between the support hole and the support protrusion and between the wedge and the unlocking member. 請求項１〜３のいずれか一つに記載のリクライニング装置であって、
支持穴と支持突部の間に一対の円弧状の楔が設けられ、
前記一対の楔の一端部間をロック用ばねによって離間する方向に付勢し、
前記一対の楔の他端部間にロック解除部材の楔押部が配設され、
前記楔押部と前記各楔との間に弾性部材が設けられることを特徴とするリクライニング装置。


The reclining device according to any one of claims 1 to 3,
A pair of arcuate wedges are provided between the support hole and the support protrusion,
Energizing the pair of wedges in the direction away from each other by a locking spring,
A wedge pressing portion of the unlocking member is disposed between the other ends of the pair of wedges,
A reclining device, wherein an elastic member is provided between the wedge pressing portion and each wedge.


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Publication number Priority date Publication date Assignee Title
KR101073457B1 (en) 2010-03-30 2011-10-17 현대다이모스(주) A reclinning devece for seats for vehicles
JP2013504465A (en) * 2009-09-10 2013-02-07 カイペル ゲーエムベーハー アンド カンパニー カーゲー Vehicle seat attachment
WO2014209047A1 (en) * 2013-06-27 2014-12-31 주식회사다스 Recliner of vehicle seat
KR20190036880A (en) * 2017-09-28 2019-04-05 주식회사다스 Recliner of vehicle seet

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DE10134355A1 (en) * 2001-07-14 2003-01-30 Faurecia Autositze Gmbh & Co Inclination adjusting system for car seat back comprises mounting on seat cushion and mounting on back connected by eccentric, undulating spring, into which rollers are fitted, being mounted between them
JP2007054153A (en) * 2005-08-23 2007-03-08 Imasen Electric Ind Co Ltd Smooth tilt operation device in reclining mechanism of automobile seat
JP2007061120A (en) * 2005-08-29 2007-03-15 Imasen Electric Ind Co Ltd Reclining unit for automotive seat

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Publication number Priority date Publication date Assignee Title
DE10134355A1 (en) * 2001-07-14 2003-01-30 Faurecia Autositze Gmbh & Co Inclination adjusting system for car seat back comprises mounting on seat cushion and mounting on back connected by eccentric, undulating spring, into which rollers are fitted, being mounted between them
JP2007054153A (en) * 2005-08-23 2007-03-08 Imasen Electric Ind Co Ltd Smooth tilt operation device in reclining mechanism of automobile seat
JP2007061120A (en) * 2005-08-29 2007-03-15 Imasen Electric Ind Co Ltd Reclining unit for automotive seat

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013504465A (en) * 2009-09-10 2013-02-07 カイペル ゲーエムベーハー アンド カンパニー カーゲー Vehicle seat attachment
KR101073457B1 (en) 2010-03-30 2011-10-17 현대다이모스(주) A reclinning devece for seats for vehicles
WO2014209047A1 (en) * 2013-06-27 2014-12-31 주식회사다스 Recliner of vehicle seat
CN104583002A (en) * 2013-06-27 2015-04-29 达世株式会社 Recliner of vehicle seat
KR20190036880A (en) * 2017-09-28 2019-04-05 주식회사다스 Recliner of vehicle seet
KR101970139B1 (en) * 2017-09-28 2019-04-22 주식회사 다스 Recliner of vehicle seet

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