JP6105102B2

JP6105102B2 - Angle adjustment bracket and sofa

Info

Publication number: JP6105102B2
Application number: JP2016013464A
Authority: JP
Inventors: 洋一永谷
Original assignee: Koyo Giken KK
Current assignee: Koyo Giken KK
Priority date: 2015-02-23
Filing date: 2016-01-27
Publication date: 2017-03-29
Anticipated expiration: 2036-01-27
Also published as: CN205866463U; JP2016154844A

Description

本発明は、角度調整金具及びソファーに関する。 The present invention relates to an angle adjusting bracket and a sofa.

従来、第１部材・第２部材を一方向へ相対的揺動可能としつつ、浮動くさび部材のくさび作用により、第１部材・第２部材の他方向への相対的揺動を規制する角度調整金具が提案されてきた（特許文献１参照）。 Conventionally, the first member and the second member can be relatively swung in one direction, and the angle adjustment for restricting the relative swiveling of the first member and the second member in the other direction by the wedge action of the floating wedge member. A metal fitting has been proposed (see Patent Document 1).

特許第５５１４７５３号公報Japanese Patent No. 5514753

しかし、特許文献１記載の角度調整金具は、浮動くさび部材が、弾発板ばね部材の弾発付勢力によって常時ギア部に押し付けられていた。このため、第１部材に対して第２部材を一方向に揺動させる場合に、浮動くさび部材がギア部を乗り越えるとき、浮動くさび部材の歯面がギア部に衝突し、カチカチという騒音が発生していた。
例えば、本願の図１０に示すソファーは、背部４６の上縁にヘッドレスト部４８が角度調整金具３によって取付けられている。そして、ヘッドレスト部４８の傾斜角度を調整する場合、座部４７に座る人の耳元で、角度調整金具３からカチカチという騒音が鳴ると、耳障りであるという欠点があった。
また、座椅子や（折畳み式）ベッド等であっても同様である。起立・傾倒作動を行う背部，ヘッドレスト部，傾動床部等の傾斜角度を調整する場合に、これらを揺動可能に枢支する角度調整金具から、カチカチ等の騒音が発生すると、耳障りであるといった問題もあった。 However, in the angle adjusting bracket described in Patent Document 1, the floating wedge member is always pressed against the gear portion by the elastic urging force of the elastic leaf spring member. For this reason, when the second member is swung in one direction with respect to the first member, when the floating wedge member gets over the gear portion, the tooth surface of the floating wedge member collides with the gear portion, and noise such as a ticking is generated. Was.
For example, in the sofa shown in FIG. 10 of the present application, the headrest portion 48 is attached to the upper edge of the back portion 46 by the angle adjustment fitting 3. And when adjusting the inclination angle of the headrest part 48, there was a fault that it would be harsh if the tick of the angle adjusting bracket 3 was heard from the ear of a person sitting on the seat part 47.
The same applies to a seat chair or a (foldable) bed. When adjusting the inclination angle of the back part, headrest part, tilting floor part, etc. that perform standing and tilting operations, if noise such as ticks is generated from the angle adjustment bracket that pivots these, it is harsh There was also a problem.

そこで、本発明は、揺動操作する際に、カチカチという騒音の発生を低減した角度調整金具を提供することを目的とする。
また、座部に座る人の耳元で耳障りな騒音を発生することなく、ヘッドレスト部の角度調整を行えるソファーを提供することを他の目的とする。 Therefore, an object of the present invention is to provide an angle adjusting bracket that reduces the generation of tick noise when swinging.
It is another object of the present invention to provide a sofa that can adjust the angle of the headrest without causing annoying noise at the ears of the person sitting on the seat.

本発明に係る角度調整金具は、くさび面（８）を有する第１部材（１）と、ギア部（４）を有する第２部材（２）と、を揺動可能に枢結し、上記くさび面（８）と上記ギア部（４）との間に形成されたくさび形空間内に移動自在に配設され、かつ、上記ギア部（４）に噛合可能な歯面（７）を有する浮動くさび部材（６）を具備し、上記第１部材（１）に対する上記第２部材（２）の一方向（Ａ）への相対的揺動を可能とし、他方向（Ｂ）への相対的揺動を規制する角度調整金具に於て、
上記一方向（Ａ）への揺動の際に、上記浮動くさび部材（６）の上記歯面（７）と上記ギア部（４）とを非接触に遊離して保持する非接触遊離保持手段（１０）を備えたものである。 Angle-adjustable hinge according to the present invention includes a first member having a wedge surface (8) (1), a gear unit and a second member having a (4) (2), swingably pivotally connected to said wedge A float having a tooth surface (7) which is movably disposed in a wedge-shaped space formed between the surface (8) and the gear portion (4) and which can mesh with the gear portion (4). A wedge member (6) is provided, and the second member (2) can be relatively swung in one direction (A) with respect to the first member (1) and can be swung in the other direction (B). In the angle adjustment bracket that regulates the movement,
Non-contact free holding means for holding the tooth surface (7) and the gear part (4) of the floating wedge member (6) in a non-contact manner when swinging in the one direction (A). (10) is provided.

また、上記非接触遊離保持手段は、上記第２部材との連れ廻り摩擦力によって小角度の範囲で回動するくさび作動部材を備え、
上記第１部材に対する上記第２部材の上記一方向（Ａ）への揺動によって、上記くさび作動部材が上記浮動くさび部材の上記歯面を上記ギア部から非接触に遊離して非接触遊離状態とし、
さらに、上記他方向（Ｂ）への上記小角度の揺動によって、上記第１部材側に形成されたくさび面と上記ギア部との間に上記浮動くさび部材を押し込んで、該浮動くさび部材の上記歯面と上記ギア部とを噛合状態とし、該浮動くさび部材のくさび作用により、上記第１部材に対する上記第２部材の上記他方向（Ｂ）への相対的揺動を規制するように構成されたものである。 In addition, the non-contact free holding means includes a wedge operating member that rotates in a small angle range due to the accompanying frictional force with the second member,
By the swinging of the second member with respect to the first member in the one direction (A), the wedge actuating member releases the tooth surface of the floating wedge member from the gear portion in a non-contact manner and in a non-contact free state. age,
Further, by the small angle swing in the other direction (B), the floating wedge member is pushed between the gear surface and the wedge surface formed on the first member side, and the floating wedge member The tooth surface and the gear portion are engaged with each other, and the relative swinging of the second member relative to the first member in the other direction (B) is restricted by the wedge action of the floating wedge member. It has been done.

そして、上記非接触遊離保持手段は、上記第２部材との連れ廻り摩擦力によって小角度の範囲で回動するくさび作動部材を備え、
上記第１部材に対する上記第２部材の上記一方向（Ａ）への揺動によって、上記くさび作動部材が上記浮動くさび部材の上記歯面を上記ギア部から非接触に遊離して非接触遊離状態とし、
さらに、上記他方向（Ｂ）への上記小角度の揺動によって、上記第１部材側に形成されたくさび面と上記ギア部との間に上記浮動くさび部材を押し込んで、該浮動くさび部材の上記歯面と上記ギア部とを噛合状態とし、該浮動くさび部材のくさび作用により、上記第１部材に対する上記第２部材の上記他方向（Ｂ）への相対的揺動を規制するように構成されたものであってもよい。 The non-contact free holding means includes a wedge operating member that rotates in a small angle range due to the accompanying frictional force with the second member,
By the swinging of the second member with respect to the first member in the one direction (A), the wedge actuating member releases the tooth surface of the floating wedge member from the gear portion in a non-contact manner and in a non-contact free state. age,
Further, by the small angle swing in the other direction (B), the floating wedge member is pushed between the gear surface and the wedge surface formed on the first member side, and the floating wedge member The tooth surface and the gear portion are engaged with each other, and the relative swinging of the second member relative to the first member in the other direction (B) is restricted by the wedge action of the floating wedge member. It may be what was done.

さらに、上記くさび作動部材は、上記第２部材に摺接して上記連れ廻り摩擦力を発生させる摺接部を有しているものである。 Further, the wedge actuating member has a sliding contact portion that slides on the second member and generates the accompanying frictional force.

また、本発明に係るソファーは、背部（４６）の上縁に、請求項１ないし４のいずれか１項に記載の角度調整金具（３）を介してヘッドレスト部（４８）を取付けて、該ヘッドレスト部（４８）の起立方向（Ａ）への揺動を可能としつつ、傾倒方向（Ｂ）への揺動を規制可能としたソファーに於て、
上記角度調整金具（３）が、ギア部（３４）と、該ギア部（３４）に噛合可能な歯面（３７）を有する上記浮動くさび部材（６）の一つである規制用小ギア部材（３６）とを具備し、上記ヘッドレスト部（４８）が上記起立方向（Ａ）に揺動する際には、上記角度調整金具（３）の上記ギア部（３４）と上記歯面（３７）を非接触遊離状態に保持する一方、上記傾倒方向（Ｂ）への所定小角度の引返し操作によって、上記角度調整金具（３）の上記ギア部（３４）と上記歯面（３７）とを噛合状態とし、上記ヘッドレスト部（４８）の姿勢を保持するように構成されたものである。 The sofa according to the present invention has a headrest part (48) attached to the upper edge of the back part (46) via the angle adjusting bracket (3) according to any one of claims 1 to 4, In the sofa that enables swinging in the tilting direction (B) while allowing swinging in the standing direction (A) of the headrest part (48),
The angle adjusting metal fitting (3) is a small gear member for regulation which is one of the floating wedge member (6) having a gear portion (34) and a tooth surface (37) meshable with the gear portion (34). (36), and when the headrest portion (48) swings in the standing direction (A), the gear portion (34) and the tooth surface (37) of the angle adjustment fitting (3). Is held in a non-contact free state, and the gear portion (34) of the angle adjustment fitting (3) and the tooth surface (37) are engaged with each other by a turning operation of a predetermined small angle in the tilting direction (B). In this state, the posture of the headrest portion (48) is maintained.

本発明の角度調整金具によれば、浮動くさび部材の歯面とギア部との噛合により、滑らず確実に、所望の角度で第１部材・第２部材を静止可能である。そして、第１部材・第２部材の角度を調整する場合に、浮動くさび部材の歯面とギア部とを非接触で遊離した状態に保持でき、静粛に揺動できる。
即ち、浮動くさび部材の歯面とギア部との衝突で発生していたカチカチという騒音の発生を防止できる。 According to the angle adjusting bracket of the present invention, the first member and the second member can be stationary at a desired angle without failing to slip by meshing between the tooth surface of the floating wedge member and the gear portion. And when adjusting the angle of a 1st member and a 2nd member, the tooth surface of a floating wedge member and a gear part can be hold | maintained in the non-contact free state, and can rock | fluctuate quietly.
That is, it is possible to prevent the generation of ticking noise that has occurred due to the collision between the tooth surface of the floating wedge member and the gear portion.

また、本発明のソファーによれば、座部に座る人の耳元で耳障りなカチカチという騒音の発生を防止でき、ヘッドレスト部を静かに揺動できるという効果がある。 Moreover, according to the sofa of this invention, generation | occurrence | production of the noise which is harsh at the ear of the person sitting on a seat part can be prevented, and there exists an effect that a headrest part can be rock | fluctuated quietly.

本発明に係る角度調整金具の第１実施形態を示した断面側面図である。It is the cross-sectional side view which showed 1st Embodiment of the angle adjustment metal fitting which concerns on this invention. 本発明に係る角度調整金具の第１実施形態を示した断面側面図である。It is the cross-sectional side view which showed 1st Embodiment of the angle adjustment metal fitting which concerns on this invention. 本発明に係る角度調整金具の第１実施形態を示した断面側面図である。It is the cross-sectional side view which showed 1st Embodiment of the angle adjustment metal fitting which concerns on this invention. 本発明に係る角度調整金具の第１実施形態を示した断面側面図である。It is the cross-sectional side view which showed 1st Embodiment of the angle adjustment metal fitting which concerns on this invention. 本発明に係る角度調整金具の第１実施形態を示した断面側面図である。It is the cross-sectional side view which showed 1st Embodiment of the angle adjustment metal fitting which concerns on this invention. 本発明に係る角度調整金具の第１実施形態を示した断面側面図である。It is the cross-sectional side view which showed 1st Embodiment of the angle adjustment metal fitting which concerns on this invention. くさび作動部材の拡大側面図である。It is an enlarged side view of a wedge operation member. 要部拡大断面側面図である。It is a principal part expanded sectional side view. 図７のＣ−Ｃ断面図である。It is CC sectional drawing of FIG. 本発明のソファーを示した斜視図である。It is the perspective view which showed the sofa of this invention. 他のくさび作動部材の拡大側面図である。It is an enlarged side view of another wedge action member. くさび作動部材を内面側から見た要部拡大斜視図である。It is the principal part expansion perspective view which looked at the wedge action | operation member from the inner surface side. 図１１のＤ−Ｄ断面図である。It is DD sectional drawing of FIG. 本発明に係る角度調整金具の第２実施形態を示す斜視図である。It is a perspective view which shows 2nd Embodiment of the angle adjustment metal fitting which concerns on this invention. 第２実施形態の分解斜視図である。It is a disassembled perspective view of 2nd Embodiment. 第２実施形態を異なる角度から見た分解斜視図である。It is the disassembled perspective view which looked at 2nd Embodiment from a different angle. 第２実施形態に係る対面壁部の斜視図である。It is a perspective view of the facing wall part which concerns on 2nd Embodiment. 第２実施形態に係る浮動くさび部材を示す斜視図である。It is a perspective view which shows the floating wedge member which concerns on 2nd Embodiment. 第２実施形態に係るくさび作動部材の斜視図である。It is a perspective view of the wedge action member concerning a 2nd embodiment. 第２実施形態に係るくさび作動部材の正面図である。It is a front view of the wedge action member concerning a 2nd embodiment. 他のくさび作動部材を示す斜視図である。It is a perspective view which shows another wedge action | operation member. 他のくさび作動部材を示す正面図である。It is a front view which shows another wedge action | operation member. 第２実施形態からカバーを外した状態を示す部分拡大斜視図である。It is a partial expansion perspective view which shows the state which removed the cover from 2nd Embodiment. 図２３から対面壁部を外した状態を示す部分拡大斜視図である。It is a partial expansion perspective view which shows the state which removed the facing wall part from FIG. 任意の構成部品を組み付けた状態を示す正面図である。It is a front view which shows the state which assembled | attached arbitrary components. 第２実施形態の縦断面図である。It is a longitudinal cross-sectional view of 2nd Embodiment. 第２実施形態の部分横断面図である。It is a partial cross-sectional view of 2nd Embodiment. 第２実施形態の操作方法を説明するための断面側面図である。It is a cross-sectional side view for demonstrating the operation method of 2nd Embodiment. 図２８に続く操作方法を説明するための断面側面図である。It is a cross-sectional side view for demonstrating the operation method following FIG. 図２９に続く操作方法を説明するための断面側面図である。FIG. 30 is a cross-sectional side view for explaining the operation method following FIG. 29. 図３０に続く操作方法を説明するための断面側面図である。It is a cross-sectional side view for demonstrating the operation method following FIG. 図３１に続く操作方法を説明するための断面側面図である。FIG. 32 is a cross-sectional side view for explaining the operation method following FIG. 31.

以下、本発明に係る角度調整金具の実施形態を、添付図面に基づいて説明する。
図１に示すように、第１実施形態に係る角度調整金具３は、第１部材１と、ギア部４を有する第２部材２と、ギア部４に噛合可能な歯面７を有する浮動くさび部材６と、を配設している。そして、第１部材１と第２部材２とは、枢結軸２４によって軸心Ｌを中心として揺動可能に組み付けられている。 Hereinafter, an embodiment of an angle adjusting bracket according to the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, the angle adjusting bracket 3 according to the first embodiment includes a first member 1, a second member 2 having a gear portion 4, and a floating wedge having a tooth surface 7 meshable with the gear portion 4. The member 6 is disposed. The first member 1 and the second member 2 are assembled so as to be swingable about the axis L by the pivot shaft 24.

本発明に係る角度調整金具３は、ソファー、座椅子、（折畳み式）ベッド等に適用可能である。より具体的には、起立・傾倒作動を行うヘッドレスト部、背部、傾動床部等の揺動自在な枢支部に適用可能である。 The angle adjusting bracket 3 according to the present invention can be applied to a sofa, a chair, a (foldable) bed, and the like. More specifically, the present invention can be applied to swingable pivotal support portions such as a headrest portion, a back portion, and a tilting floor portion that perform standing and tilting operations.

浮動くさび部材６は、一面側が歯面７とされ、他面側が当接面９とされている。上記当接面９は、第１部材１側に形成されたくさび面８に当接する。そして、図１に示すように、浮動くさび部材６は、当接面９がくさび面８に当接し、かつ、歯面７とギア部と４が噛合する場合に、くさび作用により、第１部材１に対して第２部材２が図中矢印Ｂ方向へ揺動することを阻止する。 The floating wedge member 6 has a tooth surface 7 on one side and a contact surface 9 on the other side. The contact surface 9 contacts a wedge surface 8 formed on the first member 1 side. As shown in FIG. 1, the floating wedge member 6 includes the first member by the wedge action when the abutment surface 9 abuts on the wedge surface 8 and the tooth surface 7 meshes with the gear portion 4. The second member 2 is prevented from swinging in the direction of arrow B in FIG.

第１部材１は、一対の対面壁部１７，１７と取付部１８とを一体化したものである。対面壁部１７，１７には、枢結軸２４が挿通されているとともに、くさび形窓部５が形成されている。くさび形窓部５は、円弧状のくさび面８を有し、浮動くさび部材６をギア部４から離間させた状態で収納するための退避空間１５を有している。くさび形窓部５は、くさび面８がギア部４に次第に接近するように形成されている。このため、くさび面８とギア部４の外周歯面とによって、図１の側面視で時計回り方向に縮小するくさび形空間が形成され、このくさび形空間に浮動くさび部材６が移動自在に配設されている。 The first member 1 is obtained by integrating a pair of facing wall portions 17, 17 and an attachment portion 18. A pivot shaft 24 is inserted through the facing walls 17 and 17, and a wedge-shaped window 5 is formed. The wedge-shaped window portion 5 has an arc-shaped wedge surface 8 and a retreat space 15 for accommodating the floating wedge member 6 in a state of being separated from the gear portion 4. The wedge-shaped window portion 5 is formed so that the wedge surface 8 gradually approaches the gear portion 4. For this reason, the wedge surface 8 and the outer peripheral tooth surface of the gear portion 4 form a wedge-shaped space that shrinks clockwise in a side view of FIG. 1, and the floating wedge member 6 is movably arranged in the wedge-shaped space. It is installed.

第２部材２は、２枚のギア板部４５，４５と、取付部１９とを、一体化したものである。そして、相互に平行に配置した２枚のギア部４，４は、第１部材１の対面壁部１７，１７の間に装入される。ギア板部４５，４５の円弧状外周縁部に、例えば、中心角が１００°〜１２０°を成す範囲にわたって形成されている。図例では、浮動くさび部材６の歯面７に５本〜６本の歯が形成されている。そして、上記歯面７とギア部４とは左右幅方向の２箇所で噛合しているとともに、歯面７の全ての歯がギア部４に同時に噛合している。ギア部４の始端部・終端部には、突起部１４，１４が配設されている。ギア板部４５，４５には、枢結軸２４が挿通されている。なお、浮動くさび部材６の歯面７には、１３本〜２０本の歯が形成されていても良い。また、ギア部４には、４０本以上の歯、より好ましくは４５本〜６５本の歯が形成されていても良い。これにより、角度調整段数は４０段以上とすることができる。 The second member 2 is obtained by integrating two gear plate portions 45 and 45 and the attachment portion 19. The two gear portions 4, 4 arranged in parallel with each other are inserted between the facing wall portions 17, 17 of the first member 1. For example, the center angle of the gear plate portions 45, 45 is formed over a range of 100 ° to 120 °. In the illustrated example, five to six teeth are formed on the tooth surface 7 of the floating wedge member 6. The tooth surface 7 and the gear portion 4 are meshed at two locations in the left-right width direction, and all the teeth on the tooth surface 7 are meshed with the gear portion 4 simultaneously. Protrusions 14 and 14 are disposed at the start and end portions of the gear portion 4. The pivot shaft 24 is inserted through the gear plate portions 45, 45. Note that 13 to 20 teeth may be formed on the tooth surface 7 of the floating wedge member 6. Moreover, the gear part 4 may be formed with 40 or more teeth, more preferably 45 to 65 teeth. Thereby, the number of angle adjustment steps can be 40 steps or more.

図２に示すように、第１部材１に対して第２部材２を図中矢印Ａ方向へ（相対的に）揺動することができる。そして、第２部材２をＡ方向に揺動する際に、浮動くさび部材６をギア部４から非接触に遊離して保持するための非接触遊離保持手段１０を設けてある。 As shown in FIG. 2, the second member 2 can be swung (relatively) in the direction of arrow A in the drawing with respect to the first member 1. Then, when the second member 2 is swung in the A direction, non-contact free holding means 10 is provided for holding the floating wedge member 6 free from the gear portion 4 in a non-contact manner.

非接触遊離保持手段１０は、第２部材２との連れ廻り摩擦力によって、軸心Ｌ廻りに小角度の範囲で回動するくさび作動部材（作動プレート）１１を備えている。
くさび作動部材１１は、枢結軸２４が挿通される孔部２１を有している。そして、くさび作動部材１１は、ギア板部４５，４５の間に装入された状態で、第１部材１，第２部材２に枢結軸２４を介して一体に枢結されている。
図７に示すように、くさび作動部材１１には、浮動くさび部材６を移動自在に保持する開口窓部２０が形成されている。開口窓部２０は、孔部２１の中心点（軸心Ｌ）から見て外側に円弧面２２を有するとともに、円弧面２２の一端縁と鋭角φを成すテーパー面２３を有している。くさび作動部材１１の外側面には、凹部２５が形成されている。 The non-contact free-holding means 10 includes a wedge operating member (operating plate) 11 that rotates around a shaft center L in a small angle range by a frictional force with the second member 2.
The wedge operating member 11 has a hole 21 through which the pivot shaft 24 is inserted. The wedge operating member 11 is pivotally coupled to the first member 1 and the second member 2 via the pivot shaft 24 while being inserted between the gear plate portions 45, 45.
As shown in FIG. 7, the wedge operating member 11 is formed with an opening window 20 for holding the floating wedge member 6 movably. The opening window portion 20 has an arc surface 22 on the outer side when viewed from the center point (axis L) of the hole portion 21 and a tapered surface 23 that forms an acute angle φ with one end edge of the arc surface 22. A concave portion 25 is formed on the outer surface of the wedge operating member 11.

図１〜図６に於て、第１部材１とくさび作動部材１１との間に板ばね部材１６が介設されている。板ばね部材１６は、長手方向中間部に凸部１３を有し、長手方向両端部が第１部材１に支持されている。板ばね部材１６は、凸部１３がくさび作動部材１１の凹部２５に対応するように配設されている。このため、図１および図２に示すように、凸部１３が凹部２５に摺接しつつ、くさび作動部材１１と第２部材２とが連れ廻り摩擦力によって一緒に回動する。一方、図４および図５に示すように、凸部１３が凹部２５から離脱するとともに、くさび作動部材１１の外側面に圧接した状態では、くさび作動部材１１と第２部材２とが連れ廻り摩擦力によって一緒に回動しない。 1 to 6, a leaf spring member 16 is interposed between the first member 1 and the wedge operating member 11. The leaf spring member 16 has a convex portion 13 in the middle portion in the longitudinal direction, and both end portions in the longitudinal direction are supported by the first member 1. The leaf spring member 16 is disposed so that the convex portion 13 corresponds to the concave portion 25 of the wedge operating member 11. Therefore, as shown in FIGS. 1 and 2, the wedge operating member 11 and the second member 2 are rotated together by the frictional force while the convex portion 13 is in sliding contact with the concave portion 25. On the other hand, as shown in FIG. 4 and FIG. 5, when the convex portion 13 is detached from the concave portion 25 and is in pressure contact with the outer surface of the wedge operating member 11, the wedge operating member 11 and the second member 2 are accompanied by friction. Do not rotate together by force.

図７および図９に示すように、くさび作動部材１１は、第２部材２に摺接して連れ廻り摩擦力を発生させる摺接部１２を有している。
くさび作動部材１１は、一対の側壁部２７，２７が連結部２８によって連結されている。摺接部１２は、くさび作動部材１１の側壁部２７，２７の一部を外方に突出（膨出）させている。摺接部１２は、孔部２１の周囲に複数個配設されている。摺接部１２は、くさび作動部材１１の側壁部２７，２７をコ字状に切欠いて舌片２９を形成し、この舌片２９を板ばね状に曲げ起こして形成されている（図９）。また、平行な一対のスリットを形成して、スリットの内側を三角山状に隆起させても良い（図示省略）。くさび作動部材１１は、複数の摺接部１２が、第２部材２のギア板部４５，４５の内面に圧接して連れ廻り摩擦力を発生させる。この連れ廻り摩擦力により、第２部材２とくさび作動部材１１とが共廻りする。 As shown in FIGS. 7 and 9, the wedge operating member 11 has a sliding contact portion 12 that slides on the second member 2 to generate a rotating frictional force.
The wedge operating member 11 has a pair of side wall portions 27 and 27 connected by a connecting portion 28. The sliding contact portion 12 protrudes (bulges) a part of the side wall portions 27 of the wedge operating member 11 outward. A plurality of sliding contact portions 12 are arranged around the hole portion 21. The sliding contact portion 12 is formed by notching the side wall portions 27, 27 of the wedge operating member 11 in a U shape to form a tongue piece 29, and bending the tongue piece 29 into a leaf spring shape (FIG. 9). . Further, a pair of parallel slits may be formed, and the inside of the slit may be raised in a triangular mountain shape (not shown). In the wedge operating member 11, the plurality of sliding contact portions 12 are brought into pressure contact with the inner surfaces of the gear plate portions 45, 45 of the second member 2 to generate a rotating frictional force. Due to the accompanying frictional force, the second member 2 and the wedge operating member 11 rotate together.

図１１ないし図１３に示すように、くさび作動部材１１には、孔部２１の周縁部に波状内環部３１と波状外環部３２とを設けても良い。
図１２および図１３に示すように、波状外環部３２は、側壁部２７との連結残部３０を残して断続的な（複数の）円弧状スリット３５を設け、ついで、円弧状スリット３５の内側を湾曲させることにより、複数の隆起部３３を形成してある。波状内環部３１は、隆起部３３との連結部３８を残して断続的な（複数の）円弧状スリット３９を設け、ついで、円弧状スリット３９の内側を凸状に盛り上げ、外方に突出させることにより、複数の摺接部１２を形成してある。波状内環部３１と波状外環部３２とは、弾性変形が可能である。このため、摺接部１２が弾性変形し、第２部材２のギア板部４５，４５の内面に圧接し、適度な連れ廻り摩擦力を発生させる。この結果、くさび作動部材１１と第２部材２とは連れ廻り摩擦力によって共廻りする。 As shown in FIGS. 11 to 13, the wedge operating member 11 may be provided with a waved inner ring part 31 and a waved outer ring part 32 at the peripheral edge of the hole 21.
As shown in FIGS. 12 and 13, the wave-shaped outer ring portion 32 is provided with intermittent (a plurality of) arc-shaped slits 35, leaving a connection remaining portion 30 with the side wall portion 27, and then the inner side of the arc-shaped slit 35. A plurality of raised portions 33 are formed by curving. The wavy inner ring portion 31 is provided with intermittent (a plurality of) arc-shaped slits 39 leaving a connecting portion 38 with the raised portion 33, and then the inside of the arc-shaped slit 39 is raised in a convex shape and protrudes outward. By doing so, a plurality of sliding contact portions 12 are formed. The wavy inner ring portion 31 and the wavy outer ring portion 32 can be elastically deformed. For this reason, the sliding contact portion 12 is elastically deformed and pressed against the inner surfaces of the gear plate portions 45 and 45 of the second member 2 to generate an appropriate accompanying frictional force. As a result, the wedge actuating member 11 and the second member 2 rotate together due to the accompanying frictional force.

上述した本発明の角度調整金具の使用方法（作用）について説明する。
図１から図２に示すように、第１部材１に対して第２部材２を矢印Ａ方向へ揺動させる折畳み操作Ｍ_０を行う。これにより、くさび作動部材１１と第２部材２とが連れ廻り摩擦力によって（図の反時計回りに）共廻りする。このため、浮動くさび部材６は、くさび作動部材１１のテーパー面２３に上端面を押される。この結果、浮動くさび部材６は、くさび形窓部５（くさび形空間）内で下方へ移動しながら、くさび形窓部５の誘導勾配面２６に摺接し、ギア部４から離反する方向へ小さく移動する。浮動くさび部材６は、くさび形窓部５（くさび形空間）の下部でくさび面８寄りに配設される。このため、歯面７とギア部４との間に僅かな隙間が生じ、非接触遊離状態となる（図８参照）。非接触遊離状態では、浮動くさび部材６とギア部４とは当接せず、音を発生することなく、静粛に第２部材２が一方向Ａに揺動する。浮動くさび部材６は、くさび作動部材１１のテーパー面２３と、くさび形窓部５の誘導勾配面２６と、くさび面８とによって形成される略扇形の空間に保持される。そして、くさび作動部材１１と第２部材２との間に連れ廻り摩擦力が発生している限り、浮動くさび部材６が上方からくさび作動部材１１に押圧され、浮動くさび部材６とギア部４とは噛合しない。
つまり、折畳み操作Ｍ_０をしている間は、浮動くさび部材６をガタつかせることなく保持し、浮動くさび部材６の歯面７とギア部４とは非接触遊離状態に保たれる。 The use method (action) of the angle adjusting bracket of the present invention described above will be described.
As shown in FIGS. 1 to 2, a folding operation M ₀ for swinging the second member 2 in the direction of arrow A is performed on the first member 1. As a result, the wedge operating member 11 and the second member 2 are rotated together by the frictional force (counterclockwise in the figure). Therefore, the upper end surface of the floating wedge member 6 is pushed by the tapered surface 23 of the wedge operating member 11. As a result, the floating wedge member 6 slidably contacts the guide gradient surface 26 of the wedge-shaped window portion 5 while moving downward in the wedge-shaped window portion 5 (wedge-shaped space), and becomes smaller in the direction away from the gear portion 4. Moving. The floating wedge member 6 is disposed near the wedge surface 8 at the lower part of the wedge-shaped window portion 5 (wedge-shaped space). For this reason, a slight gap is generated between the tooth surface 7 and the gear portion 4, and a non-contact free state is obtained (see FIG. 8). In the non-contact free state, the floating wedge member 6 and the gear portion 4 do not come into contact with each other, and the second member 2 swings in one direction A silently without generating sound. The floating wedge member 6 is held in a substantially fan-shaped space formed by the tapered surface 23 of the wedge operating member 11, the guiding gradient surface 26 of the wedge-shaped window portion 5, and the wedge surface 8. As long as the frictional force is generated between the wedge operating member 11 and the second member 2, the floating wedge member 6 is pressed against the wedge operating member 11 from above, and the floating wedge member 6, the gear portion 4, Does not mesh.
That is, during the folding operation M ₀ , the floating wedge member 6 is held without rattling, and the tooth surface 7 of the floating wedge member 6 and the gear portion 4 are kept in a non-contact free state.

次に、図３に示すように、折畳み操作Ｍ_０の途中で、第１部材１に対して第２部材２を矢印Ｂ方向へ揺動させるべく引返し操作Ｍ_１を行うと、くさび作動部材１１と第２部材２とが連れ廻り摩擦力によって（図の時計回りに）共廻りする。くさび作動部材１１は、浮動くさび部材６の下端面を下方から押し上げて、浮動くさび部材６をくさび形窓部５（くさび形空間）の上部へ移動させる。このため、浮動くさび部材６の歯面７とギア部４とが噛合状態となる。浮動くさび部材６は、くさび面８とギア部４との間の次第に狭くなる空間に押し込まれ、くさび作用により、第２部材２のＢ方向への揺動を規制する。この結果、第１部材１と第２部材２との傾斜角度は維持（固定保持）される。
図３に示す噛合状態では、浮動くさび部材６の歯面７とギア部４との噛合により、滑ることなく確実に第１部材１と第２部材２との傾斜角度を停止保持する。 Next, as shown in FIG. 3, when the reversing operation M ₁ is performed to swing the second member 2 in the arrow B direction with respect to the first member 1 in the middle of the folding operation M ₀ , the wedge actuating member 11. And the second member 2 are rotated together by the frictional force (clockwise in the figure). The wedge actuating member 11 pushes up the lower end surface of the floating wedge member 6 from below to move the floating wedge member 6 to the upper portion of the wedge-shaped window portion 5 (wedge-shaped space). For this reason, the tooth surface 7 of the floating wedge member 6 and the gear part 4 are in meshing state. The floating wedge member 6 is pushed into a gradually narrowing space between the wedge surface 8 and the gear portion 4 and restricts the swinging of the second member 2 in the B direction by the wedge action. As a result, the inclination angle between the first member 1 and the second member 2 is maintained (fixed and held).
In the meshing state shown in FIG. 3, the inclination angle between the first member 1 and the second member 2 is surely stopped and held without slipping by meshing between the tooth surface 7 of the floating wedge member 6 and the gear portion 4.

そして、図４に示すように、折畳み操作Ｍ_０によって第２部材２をさらにＡ方向に揺動させ、起立状の最終折畳位置Ｐ_０とする。これにより、一方の突起部１４が浮動くさび部材６の上端面を押圧し、くさび形窓部５（くさび形空間）の下部の退避空間１５に浮動くさび部材６を移動させる。この際、くさび作動部材１１は、浮動くさび部材６の下端面に押され、図２の非接触遊離状態から（図の反時計回りに）さらに回動する。これを退避状態と呼ぶ。退避状態下では、浮動くさび部材６が退避空間１５に収納され、かつ、くさび作動部材１１が板ばね部材１６の凸部１３に係止している。従って、第２部材２をＢ方向へ揺動しても、くさび作動部材１１は板ばね部材１６の凸部１３に係止しているので、第２部材２とくさび作動部材１１とは共廻りしない。このため、ギア部４と歯面７との噛合が解除された状態を保ち、第１部材１に対して第２部材２はＢ方向への揺動が可能となる。 Then, as shown in FIG. 4, the folding operation M ₀ is swung further direction A second member 2, the upright shape of the final folding position P _0. Thereby, one protrusion 14 presses the upper end surface of the floating wedge member 6, and moves the floating wedge member 6 to the retreat space 15 below the wedge-shaped window portion 5 (wedge-shaped space). At this time, the wedge operating member 11 is pushed by the lower end surface of the floating wedge member 6 and further rotates from the non-contact free state in FIG. 2 (counterclockwise in the figure). This is called a retracted state. Under the retracted state, the floating wedge member 6 is accommodated in the retracted space 15, and the wedge operating member 11 is locked to the convex portion 13 of the leaf spring member 16. Therefore, even if the second member 2 is swung in the B direction, the wedge operating member 11 is locked to the convex portion 13 of the leaf spring member 16, so that the second member 2 and the wedge operating member 11 rotate together. do not do. For this reason, the state in which the gear portion 4 and the tooth surface 7 are disengaged is maintained, and the second member 2 can swing in the B direction with respect to the first member 1.

次に、図５に示すように、展開操作Ｍ_２によって第２部材２をＢ方向へ揺動すると、第１部材１に対して第２部材２が直線状となる最終展開位置Ｐ_１（図６参照）の直前で、他方の突起部１４が浮動くさび部材６の下端面に当接する。
そして、図５および図６に示すように、第２部材２を少し強くＢ方向へ押すと、突起部１４が浮動くさび部材６の下端面を押圧するので、退避空間１５から上方へ浮動くさび部材６が移動する。この際、浮動くさび部材６の移動に伴って、浮動くさび部材６の上端面がくさび作動部材１１のテーパー面２３を押し上げるので、くさび作動部材１１が図の時計回りに回動する。くさび作動部材１１は、板ばね部材１６との係止状態が解除され、第２部材２との摩擦力によって共廻りする。このため、浮動くさび部材６がくさび形窓部５（くさび形空間）の上部へ移動し、浮動くさび部材６の歯面７とギア部４とが噛合状態となる。 Next, as shown in FIG. 5, when the second member 2 is swung in the B direction by the unfolding operation M ₂ , the final unfolding position P ₁ where the second member 2 is linear with respect to the first member ₁ (FIG. 6), the other protrusion 14 comes into contact with the lower end surface of the floating wedge member 6.
Then, as shown in FIGS. 5 and 6, when the second member 2 is pushed slightly in the B direction, the protrusion 14 presses the lower end surface of the floating wedge member 6, so that the wedge member floats upward from the retreat space 15. 6 moves. At this time, as the floating wedge member 6 moves, the upper end surface of the floating wedge member 6 pushes up the tapered surface 23 of the wedge operating member 11, so that the wedge operating member 11 rotates clockwise in the figure. The wedge operating member 11 is released from the locked state with the leaf spring member 16 and rotates together by the frictional force with the second member 2. For this reason, the floating wedge member 6 moves to the upper part of the wedge-shaped window portion 5 (wedge-shaped space), and the tooth surface 7 of the floating wedge member 6 and the gear portion 4 are engaged.

図１０に示すように、背部４６の上縁に角度調整金具３を介してヘッドレスト部４８を取付けてある。このため、上記角度調整金具３は、ヘッドレスト部４８の起立方向Ａへの揺動を可能としつつ、傾倒方向Ｂへの揺動を規制するソファーに使用するのに好適である。
図８に示すように、角度調整金具３が、ギア部３４と、ギア部３４に噛合可能な歯面３７を有する規制用小ギア部材３６（浮動くさび部材６）とを、具備している。
図１０に於て、ヘッドレスト部４８が起立方向Ａに揺動する際には、角度調整金具３のギア部３４と歯面３７とが非接触遊離状態に保持される。そして、ヘッドレスト部４８に傾倒方向Ｂへの所定小角度の引返し操作を行うことにより、角度調整金具３のギア部３４と歯面３７とが噛合状態となり、ヘッドレスト部４８の姿勢が保持される。 As shown in FIG. 10, a headrest portion 48 is attached to the upper edge of the back portion 46 via the angle adjustment fitting 3. Therefore, the angle adjusting bracket 3 is suitable for use in a sofa that allows the headrest portion 48 to swing in the standing direction A while restricting swinging in the tilting direction B.
As shown in FIG. 8, the angle adjustment fitting 3 includes a gear portion 34 and a regulating small gear member 36 (floating wedge member 6) having a tooth surface 37 that can mesh with the gear portion 34.
In FIG. 10, when the headrest portion 48 swings in the standing direction A, the gear portion 34 and the tooth surface 37 of the angle adjustment fitting 3 are held in a non-contact free state. Then, when the headrest portion 48 is turned back by a predetermined small angle in the tilt direction B, the gear portion 34 and the tooth surface 37 of the angle adjustment fitting 3 are engaged with each other, and the posture of the headrest portion 48 is maintained.

なお、本発明は、設計変更可能であって、例えば、くさび形窓部５を有さずに、代りに、浮動くさび部材６の当接面９を押圧する板片状部材等を用いることも自由である。
また、くさび作動部材１１は、開口窓部２０を有さずに、浮動くさび部材６の上端面・下端面を押圧する上下一対の当接面を有する形状であれば良く、板片状部材を用いる等、デザインや寸法比率を自由に変更可能である。 In the present invention, the design can be changed. For example, a plate-like member that presses the contact surface 9 of the floating wedge member 6 may be used instead of the wedge-shaped window portion 5. Be free.
The wedge operating member 11 may have a shape having a pair of upper and lower abutting surfaces that press the upper end surface and the lower end surface of the floating wedge member 6 without having the opening window portion 20. The design and dimensional ratio can be freely changed, such as using.

以上のように、本発明に係る角度調整金具は、第１部材１と、ギア部４を有する第２部材２とを、揺動可能に枢結し、ギア部４に噛合可能な歯面７を有する浮動くさび部材６を具備し、第１部材１に対する第２部材２の一方向Ａへの相対的揺動を可能とし、他方向Ｂへの相対的揺動を規制する角度調整金具３である。そして、一方向Ａへの揺動の際に浮動くさび部材６の歯面７とギア部４とを非接触に遊離して保持する非接触遊離保持手段１０を設けた。このため、浮動くさび部材６の歯面７とギア部４との噛合により、滑らず確実に、所望の角度で第１部材１・第２部材２を静止可能である。また、第１部材１・第２部材２の角度調整の際に、浮動くさび部材６の歯面７とギア部４とが非接触に遊離した非接触遊離状態に保持でき、静粛に揺動できる。即ち、従来、浮動くさび部材とギア部とが衝突することで発生していたカチカチ音の発生を防止できる。 As described above, in the angle adjusting bracket according to the present invention, the first member 1 and the second member 2 having the gear portion 4 are pivotably connected so that the tooth surface 7 that can mesh with the gear portion 4 is engaged. An angle adjustment fitting 3 that includes a floating wedge member 6 having the following structure, enables relative swinging of the second member 2 in one direction A with respect to the first member 1, and restricts relative swinging in the other direction B: is there. And the non-contact free holding | maintenance means 10 which provided the tooth surface 7 of the floating wedge member 6 and the gear part 4 in a non-contact manner and held at the time of swinging in one direction A was provided. For this reason, the first member 1 and the second member 2 can be kept stationary at a desired angle without slipping by the engagement between the tooth surface 7 of the floating wedge member 6 and the gear portion 4. Further, when the angle of the first member 1 and the second member 2 is adjusted, the tooth surface 7 of the floating wedge member 6 and the gear portion 4 can be held in a non-contact free state where they are released in a non-contact manner, and can be rocked quietly. . In other words, it is possible to prevent the occurrence of a ticking sound that has conventionally occurred due to the collision between the floating wedge member and the gear portion.

また、非接触遊離保持手段１０は、第２部材２との連れ廻り摩擦力によって小角度の範囲で回動するくさび作動部材１１を備え、第１部材１に対する第２部材２の一方向Ａへの揺動によって、くさび作動部材１１が浮動くさび部材６の歯面７をギア部４から非接触に遊離して非接触遊離状態とする。さらに、他方向Ｂへの小角度の揺動によって、第１部材１側に形成されたくさび面８とギア部４との間に浮動くさび部材６を押し込んで、浮動くさび部材６の歯面７とギア部４とを噛合状態とすることにより、浮動くさび部材６のくさび作用により、第１部材１に対する第２部材２の他方向Ｂへの相対的揺動を規制する。このため、浮動くさび部材６の歯面７とギア部４との噛合により、滑らず確実に、所望の角度で第１部材１・第２部材２の姿勢を保持できる。また、第２部材２を一方向Ａへ揺動する間は、浮動くさび部材６の歯面７とギア部４とを、非接触に遊離した非接触遊離状態に確実に保持できる。 Further, the non-contact free holding means 10 includes a wedge operating member 11 that rotates in a small angle range due to the accompanying frictional force with the second member 2, and is in one direction A of the second member 2 relative to the first member 1. By swinging, the wedge actuating member 11 releases the tooth surface 7 of the floating wedge member 6 from the gear portion 4 in a non-contacting state, thereby bringing it into a non-contact free state. Further, the swinging wedge member 6 is pushed between the gear surface 4 and the wedge surface 8 formed on the first member 1 side by the small-angle swing in the other direction B, and the tooth surface 7 of the floating wedge member 6 is pushed. By engaging the gear portion 4 with the gear portion 4, the relative swinging of the second member 2 in the other direction B with respect to the first member 1 is restricted by the wedge action of the floating wedge member 6. For this reason, by the meshing of the tooth surface 7 of the floating wedge member 6 and the gear portion 4, the posture of the first member 1 and the second member 2 can be reliably held at a desired angle without slipping. Further, while the second member 2 is swung in one direction A, the tooth surface 7 and the gear portion 4 of the floating wedge member 6 can be reliably held in a non-contact free state that is free from contact.

また、くさび作動部材１１は、第２部材２に摺接して連れ廻り摩擦力を発生させる摺接部１２を有している。このため、くさび作動部材１１と第２部材２とが確実に共廻りする。この結果、浮動くさび部材６の歯面７とギア部４とを、非接触遊離状態と噛合状態とに切換えることができる。この結果、第１部材１と第２部材２を適度な摩擦抵抗力で揺動させることができる。 In addition, the wedge operating member 11 has a sliding contact portion 12 that slides on the second member 2 and generates a frictional force. For this reason, the wedge operating member 11 and the second member 2 are reliably rotated together. As a result, the tooth surface 7 of the floating wedge member 6 and the gear portion 4 can be switched between the non-contact free state and the meshing state. As a result, the first member 1 and the second member 2 can be swung with an appropriate frictional resistance.

また、本発明に係るソファーは、背部４６の上縁に角度調整金具３によってヘッドレスト部４８を取付けて、ヘッドレスト部４８の起立方向Ａへの揺動を可能としつつ、傾倒方向Ｂへの揺動を規制可能としてある。そして、角度調整金具３が、ギア部３４と、ギア部３４に噛合可能な歯面３７を有する規制用小ギア部材３６とを、具備している。このため、ヘッドレスト部４８が起立方向Ａに揺動する際には、角度調整金具３のギア部３４と歯面３７とを非接触遊離状態に保持する。そして、ヘッドレスト部４８に傾倒方向Ｂへ所定小角度の引返し操作を行うことにより、角度調整金具３のギア部３４と歯面３７とを噛合状態とし、ヘッドレスト部４８の姿勢を保持する。したがって、ヘッドレスト部４８が起立方向Ａに揺動する際に、耳元で耳障りな騒音が発生するのを防止でき、ヘッドレスト部４８を静かに揺動できる。 Further, the sofa according to the present invention has the headrest portion 48 attached to the upper edge of the back portion 46 by the angle adjusting bracket 3 so that the headrest portion 48 can swing in the standing direction A while swinging in the tilt direction B. Can be regulated. The angle adjusting bracket 3 includes a gear portion 34 and a regulating small gear member 36 having a tooth surface 37 that can mesh with the gear portion 34. For this reason, when the headrest portion 48 swings in the standing direction A, the gear portion 34 and the tooth surface 37 of the angle adjustment fitting 3 are held in a non-contact free state. Then, the headrest portion 48 is turned back in the tilt direction B by a predetermined small angle, whereby the gear portion 34 and the tooth surface 37 of the angle adjustment fitting 3 are brought into an engaged state, and the posture of the headrest portion 48 is maintained. Therefore, when the headrest portion 48 swings in the standing direction A, it is possible to prevent annoying noise from being generated at the ear, and the headrest portion 48 can be gently swinged.

本発明に係る角度調整金具３の第２実施形態は、図１４ないし図３２に示すように、第１部材５０と、第２部材６０と、浮動くさび部材７０と、非接触遊離保持手段８０と、第１，第２カバー９０，９２と、を備え、枢結軸９４を介し、軸心Ｌを中心として揺動可能に一体化されている。 As shown in FIGS. 14 to 32, the second embodiment of the angle adjustment fitting 3 according to the present invention includes a first member 50, a second member 60, a floating wedge member 70, and a non-contact free holding means 80. The first and second covers 90 and 92 are integrated with each other so as to be swingable about the axis L through a pivot shaft 94.

上記第１部材５０は、図１５および図１６に示すように、取付部５１と、上記取付部５１の一端部を挟持し、かつ、平行に対向する一対の対面壁部５２，５３と、を備えている。そして、上記取付部５１に上記対面壁部５２，５３が２本のリベット５４，５４でかしめ固定されている。
なお、固定方法は前述のかしめ固定に限らず、例えば、ボルトナットあるいは溶接で固定してもよい。また、取付部５１と対面壁部５２，５３とのいずれか一方に、突出し加工で嵌合突起を設ける一方、残る他方に嵌合孔を設けて一体化してもよい。 As shown in FIGS. 15 and 16, the first member 50 includes an attachment portion 51 and a pair of facing wall portions 52, 53 that sandwich one end portion of the attachment portion 51 and face each other in parallel. I have. The facing wall portions 52 and 53 are caulked and fixed to the mounting portion 51 with two rivets 54 and 54.
The fixing method is not limited to the above-described caulking, and may be fixed by, for example, bolts and nuts or welding. In addition, one of the attachment portion 51 and the facing wall portions 52 and 53 may be provided with a fitting protrusion by protruding processing, and a fitting hole may be provided on the other side to be integrated.

上記対面壁部５２，５３は鏡面対称に形成され、その一方側に軸孔５６を設けてあるとともに、その他方側の内向面に位置規制ピン５７を突設してある（図１７）。そして、対面壁部５２，５３は、上記軸孔５６と位置規制ピン５７との間に、くさび形窓部５８を設けてある。なお、上記位置規制ピン５７は、突出し加工で形成してもよく、別体の金属製ピンを取り付けて形成してもよい。 The facing wall portions 52 and 53 are formed mirror-symmetrically, have a shaft hole 56 on one side, and project a position restricting pin 57 on the inward surface on the other side (FIG. 17). The facing wall portions 52 and 53 are provided with a wedge-shaped window portion 58 between the shaft hole 56 and the position restricting pin 57. The position regulating pin 57 may be formed by protruding processing, or may be formed by attaching a separate metal pin.

上記位置規制ピン５７は、図２７に示すように、一対の対面壁部５２，５３に、同一軸心上に位置するようにそれぞれ配置されている。そして、上記位置規制ピン５７は、後述するくさび作動部材８１の板ばね部材８３をガイドすることにより、上記くさび作動部材８１のガタツキを防止する。また、上記板ばね部材８３に係止することにより、上記くさび作動部材８１を位置規制する。 As shown in FIG. 27, the position restricting pins 57 are disposed on the pair of facing walls 52 and 53 so as to be positioned on the same axis. The position restricting pin 57 prevents rattling of the wedge operating member 81 by guiding a leaf spring member 83 of the wedge operating member 81 described later. Further, by locking the leaf spring member 83, the position of the wedge operating member 81 is regulated.

上記くさび形窓部５８は、図１７に示すように、円弧状のくさび面５８ａを有している。そして、上記くさび面５８ａは、後述する第２部材６０のギア部６６に次第に接近するように形成されている（図２５）。また、上記くさび形窓部５８は、浮動くさび部材７０をギア部６６から離間させた状態で収納するための退避空間５８ｂを有している。さらに、上記くさび形窓部５８は、上記退避空間５８ｂに連続する誘導勾配面５８ｃを形成してある。
そして、図２５に示すように、くさび面５８ａとギア部６６の外周歯面とによって、時計回り方向に沿って縮小するくさび形空間が形成される。上記くさび形空間内には、後述する浮動くさび部材７０が移動自在に組み込まれる。 As shown in FIG. 17, the wedge-shaped window portion 58 has an arcuate wedge surface 58a. And the said wedge surface 58a is formed so that it may approach gradually the gear part 66 of the 2nd member 60 mentioned later (FIG. 25). The wedge-shaped window portion 58 has a retreat space 58b for storing the floating wedge member 70 in a state of being separated from the gear portion 66. Further, the wedge-shaped window portion 58 forms a guide gradient surface 58c continuous with the retreat space 58b.
As shown in FIG. 25, a wedge-shaped space that decreases along the clockwise direction is formed by the wedge surface 58 a and the outer peripheral tooth surface of the gear portion 66. A floating wedge member 70, which will be described later, is movably incorporated in the wedge-shaped space.

上記第２部材６０は、図１５および図１６に示すように、取付部６１と、上記取付部６１の一端部を挟持し、かつ、平行に対向する一対のギア板部６２，６３と、を備えている。そして、上記取付部６１に上記ギア板部６２，６３が２本のリベット６４，６４でかしめ固定されている。なお、固定方法は前述のかしめ固定に限らず、例えば、ボルトナットあるいは溶接で固定してもよい。また、取付部６１とギア板部６２，６３とのいずれか一方に、突出し加工で嵌合突起を設ける一方、残る他方に嵌合孔を設けて一体化してもよい。 As shown in FIGS. 15 and 16, the second member 60 includes an attachment portion 61 and a pair of gear plate portions 62 and 63 that sandwich one end portion of the attachment portion 61 and face each other in parallel. I have. The gear plate portions 62 and 63 are caulked and fixed to the mounting portion 61 with two rivets 64 and 64. The fixing method is not limited to the above-described caulking, and may be fixed by, for example, bolts and nuts or welding. Further, either one of the attachment portion 61 and the gear plate portions 62 and 63 may be provided with a fitting projection by protruding processing, and a fitting hole may be provided on the other and integrated.

上記ギア板部６２，６３は、鏡面対称に形成され、枢結軸９４を挿通するための軸孔６５，６５をそれぞれ有する。また、上記ギア板部６２，６３は、その一端側の円弧状外周縁部に、例えば、中心角１００°〜１２０°の範囲でギア部６６を形成してある。さらに、上記ギア部６６の始端部には押下げ用突起部６７が設けられている。また、上記ギア部６６の終端部には押上げ用突起部６８が設けられている。
そして、第２部材６０の２枚のギア板部６２，６３は、上記第１部材５０の対面壁部５２，５３の間に装入され、後述する枢結軸９４を介して揺動可能に連結される。 The gear plate portions 62 and 63 are formed in mirror symmetry and have shaft holes 65 and 65 through which the pivot shaft 94 is inserted. Further, the gear plate portions 62 and 63 are formed with a gear portion 66 in the arcuate outer peripheral edge portion on one end side, for example, in the range of a central angle of 100 ° to 120 °. Further, a pressing projection 67 is provided at the start end of the gear portion 66. A push-up projection 68 is provided at the end of the gear portion 66.
The two gear plate portions 62 and 63 of the second member 60 are inserted between the facing wall portions 52 and 53 of the first member 50, and can swing through a pivot shaft 94 described later. Connected.

本実施形態では、上記第１，第２部材５０，６０を３枚の構成部品でそれぞれ形成することが開示されているが、必ずしもこれに限らない。上記第１，第２部材５０，６０は、例えば、鏡面対称に形成した２枚の構成部品を重ね合わせ、溶接、カシメ固定、ボルトナット、あるいは、嵌合突起等を利用して一体化してもよい。 In the present embodiment, it is disclosed that the first and second members 50 and 60 are formed by three components, but the present invention is not necessarily limited thereto. For example, the first and second members 50 and 60 may be formed by superimposing two components formed mirror-symmetrically and using welding, caulking, bolts, nuts, or fitting protrusions. Good.

上記浮動くさび部材７０は、図１８に示すように、一面側が当接面７１とされ、他面側が歯面７２とされている。上記当接面７１は、図２８に示すように、第１部材５０側に形成されたくさび面５８ａに当接する。そして、浮動くさび部材７０は、当接面７１がくさび面５８ａに当接し、かつ、歯面７２とギア部６６とが噛合する場合に、くさび作用により、第１部材５０に対する第２部材６０の図中矢印Ｂ方向へ揺動を阻止する。 As shown in FIG. 18, the floating wedge member 70 has a contact surface 71 on one surface side and a tooth surface 72 on the other surface side. As shown in FIG. 28, the abutment surface 71 abuts on a wedge surface 58a formed on the first member 50 side. When the contact surface 71 contacts the wedge surface 58a and the tooth surface 72 and the gear portion 66 are engaged with each other, the floating wedge member 70 has a wedge action so that the second member 60 is in contact with the first member 50. Oscillation is prevented in the direction of arrow B in the figure.

なお、図２４に示すように、浮動くさび部材７０の歯面７２に５本〜６本の歯が形成されている。この歯面７２とギア部６６とは、左右幅方向の２箇所で噛合し、かつ、歯面７２の全ての歯がギア部６６に同時に噛合している。
また、例えば、浮動くさび部材７０の歯面７２に１３本〜２０本の歯を形成し、ギア部６６に４０本以上の歯、より好ましくは４５本〜６５本の歯を形成してもよい。これにより、角度調整段数を４０段以上としてもよい。 Note that, as shown in FIG. 24, 5 to 6 teeth are formed on the tooth surface 72 of the floating wedge member 70. The tooth surface 72 and the gear portion 66 are meshed at two locations in the left-right width direction, and all the teeth on the tooth surface 72 are meshed with the gear portion 66 simultaneously.
Further, for example, 13 to 20 teeth may be formed on the tooth surface 72 of the floating wedge member 70, and 40 or more teeth, more preferably 45 to 65 teeth may be formed on the gear portion 66. . Thereby, the number of angle adjustment steps may be 40 or more.

上記非接触遊離保持手段８０は、図１５および図１６に示すように、第２部材６０との連れ廻り摩擦力によって、軸心Ｌ廻りに小角度の範囲で回動するくさび作動部材（作動プレート）８１を備えている。 As shown in FIGS. 15 and 16, the non-contact free holding means 80 is a wedge operating member (actuating plate) that rotates around the axis L in a small angle range due to the accompanying frictional force with the second member 60. 81).

上記くさび作動部材８１は、図１９および図２０に示すように、１枚の金属板をプレス加工で打ち抜き、折り重ねて形成されている。そして、上記くさび作動部材８１は、その中央に設けた開口窓部８２と、上記開口窓部８２の一方側に設けた一対の板ばね部材８３，８３と、上記開口窓部８２の他方側に設けた軸孔８４と、を有している。また、上記くさび作動部材８１は、ギア板部６２，６３の間に装入された状態で第２部材６０と共に揺動可能に支持されている。 As shown in FIGS. 19 and 20, the wedge operating member 81 is formed by punching and folding a single metal plate by press working. The wedge operating member 81 includes an opening window 82 provided at the center thereof, a pair of leaf spring members 83 and 83 provided on one side of the opening window 82, and the other side of the opening window 82. And a provided shaft hole 84. The wedge operating member 81 is supported so as to be swingable together with the second member 60 while being inserted between the gear plate portions 62 and 63.

上記開口窓部８２は、浮動くさび部材７０を移動自在に保持するためのものであり、中心点（軸心Ｌ）から見て外側に円弧面８２ａを有している。上記円弧面８２ａは、その一端縁に鋭角φを成すテーパー面８２ｂを有している。また、上記円弧面８２ａは、その他端縁に段部８２ｃを設けてある。 The opening window 82 is for holding the floating wedge member 70 so as to be movable, and has an arcuate surface 82a on the outer side when viewed from the center point (axis L). The arc surface 82a has a tapered surface 82b having an acute angle φ at one end edge thereof. The arc surface 82a is provided with a stepped portion 82c at the other edge.

上記板ばね部材８３は、上記くさび作動部材８１の他方側縁部に沿って縦長のスリットを設け、切り残した部分を略直角にそれぞれ曲げ起こして形成されている。このため、板ばね部材８３は、長手方向の両端部がくさび作動部材８１に連結されている。
また、上記板ばね部材８３は、長手方向の中間部に外方に突出する凸部８３ａを有している。そして、上記板ばね部材８３は、上記凸部８３ａの一方側の基部に係止用凹部８３ｂを形成してある。この係止用凹部８３ｂに位置規制ピン５７が係止することにより、くさび作動部材８１が、第２部材６０との連れ廻り摩擦力によって回動しないように位置規制される。また、上記板ばね部材８３は、上記凸部８３ａの他方側にガイド用凹部８３ｃを形成してある。上記ガイド用凹部８３ｃ内に位置規制ピン５７が位置している場合は、上記位置規制ピン５７に上記板ばね部材８３がガイドされながら、くさび作動部材８１が第２部材６０と一緒に連れ廻り摩擦力によって回動する。
なお、上記位置規制ピン５７は、上記ガイド用凹部８３ｃにガイドされていればよく、常に摺接している必要はない。
また、上記板バネ部ばね８３必ずしも一対、設ける必要はなく、片側１枚であってもよい。 The leaf spring member 83 is formed by providing a vertically long slit along the other side edge portion of the wedge operating member 81 and bending and raising the left uncut portions substantially at right angles. For this reason, the leaf spring member 83 is connected to the wedge operating member 81 at both ends in the longitudinal direction.
Further, the leaf spring member 83 has a convex portion 83a projecting outward at an intermediate portion in the longitudinal direction. The leaf spring member 83 is formed with a locking recess 83b at the base on one side of the protrusion 83a. When the position restricting pin 57 is engaged with the engaging recess 83b, the position of the wedge operating member 81 is restricted so as not to rotate due to the accompanying frictional force with the second member 60. The leaf spring member 83 has a guide recess 83c on the other side of the protrusion 83a. When the position restricting pin 57 is located in the guide recess 83 c, the wedge operating member 81 is rotated together with the second member 60 while the leaf spring member 83 is guided by the position restricting pin 57. It rotates by force.
The position restricting pin 57 only needs to be guided by the guide recess 83c, and does not always need to be in sliding contact.
Further, the pair of leaf springs 83 need not necessarily be provided as a pair, but may be provided on one side.

上記軸孔８４は、後述する枢結軸９４を挿通するためのものである。そして、上記軸孔８４の周縁部に摺接部として波状環部８５を設けてある。波状環部８５は複数の隆起部８５ａを有している。上記隆起部８５ａは、軸孔８４の周縁部に連結残部８５ｂを残して不連続な（複数の）円弧状スリット８５ｃを設け、ついで、上記円弧状スリット８５ｃの内側部分を板厚方向に湾曲させて形成されている。
そして、上記波状環部８５は弾性変形するので、隆起部８５ａが、第２部材６０のギア板部６２，６３の内向面に弾性的に圧接する。このため、くさび作動部材８１と第２部材６０との間に適度な連れ廻り摩擦力が発生する。この結果、上記連れ廻り摩擦力によってくさび作動部材８１と第２部材６０とが共廻りする。 The shaft hole 84 is for inserting a pivot shaft 94 described later. A wave ring 85 is provided at the peripheral edge of the shaft hole 84 as a sliding contact portion. The wavy ring portion 85 has a plurality of raised portions 85a. The raised portion 85a is provided with a discontinuous (several) arc-shaped slit 85c leaving a connection remaining portion 85b at the peripheral edge of the shaft hole 84, and then the inner portion of the arc-shaped slit 85c is bent in the thickness direction. Is formed.
The wavy ring portion 85 is elastically deformed, so that the raised portion 85 a is elastically pressed against the inward surfaces of the gear plate portions 62 and 63 of the second member 60. For this reason, an appropriate accompanying frictional force is generated between the wedge operating member 81 and the second member 60. As a result, the wedge actuating member 81 and the second member 60 rotate together by the accompanying frictional force.

なお、上記くさび作動部材８１は、図２１および図２２に示すように、上記波状環部８５の内周縁部に環状摺接部８６を設けておいてもよい。上記環状摺接部８６を設けることにより、上記波状環部８５が補強され、耐久性が向上するとともに、揺動動作が円滑かつ安定するという利点がある。 The wedge actuating member 81 may be provided with an annular slidable contact portion 86 at the inner peripheral edge portion of the wavy ring portion 85 as shown in FIGS. 21 and 22. By providing the annular sliding contact portion 86, there is an advantage that the wavy ring portion 85 is reinforced, durability is improved, and swinging operation is smooth and stable.

また、くさび作動部材８１は、前述の実施形態に限らず、１枚の金属板に貫通孔およびスリットを設けることにより、開口窓部８２と、上記開口窓部８２の一方側に軸孔８４と、上記開口窓部８２の他方側に板ばね部材８３と、を切削加工で形成してもよい。 Further, the wedge operating member 81 is not limited to the above-described embodiment, and by providing a through hole and a slit in one metal plate, the opening window 82 and the shaft hole 84 on one side of the opening window 82 are provided. The leaf spring member 83 may be formed on the other side of the opening window 82 by cutting.

第１，第２カバー９０，９２は、上記浮動くさび部材７０の脱落を防止するためのものである。そして、第１，第２カバー９０，９２は、上記第１部材５０の対面壁部５２，５３の外周面を被覆する正面形状を有するとともに、軸孔９１，９３をそれぞれ備えている。 The first and second covers 90 and 92 are for preventing the floating wedge member 70 from falling off. The first and second covers 90 and 92 have a front shape covering the outer peripheral surfaces of the facing wall portions 52 and 53 of the first member 50, and are provided with shaft holes 91 and 93, respectively.

次に、前述の構成部品の組み付け方法について説明する。
一体化した第２部材６０のギア板部６２，６３の間にくさび作動部材８１を挿入して位置決めする。そして、第１部材５０の対面壁部５２，５３の間に、上記ギア板部６２，６３およびくさび作動部材８１を挿入して位置決めする。さらに、上記対面壁部５２に第１カバー９０を位置決めした後、軸孔９１，５６，６５，８４，６５，５６に枢結軸９４を挿通して仮止めする。ついで、対面壁部５３のくさび形窓部５８から浮動くさび部材７０を開口窓部８２におよび対面壁部５２のくさび形窓部５８に挿入する。そして、第２カバー９２の軸孔９３を枢結軸９４に嵌合し、上記浮動くさび部材７０の脱落を防止する。最後に、枢結軸９４の両端をかしめることにより、前述の構成部品を連結一体化する。 Next, a method for assembling the above-described components will be described.
A wedge operating member 81 is inserted and positioned between the gear plate portions 62 and 63 of the integrated second member 60. Then, the gear plate portions 62 and 63 and the wedge operating member 81 are inserted and positioned between the facing wall portions 52 and 53 of the first member 50. Further, after positioning the first cover 90 on the facing wall 52, the pivot shaft 94 is inserted into the shaft holes 91, 56, 65, 84, 65, 56 and temporarily fixed. Next, the floating wedge member 70 is inserted from the wedge-shaped window portion 58 of the facing wall portion 53 into the opening window portion 82 and into the wedge-shaped window portion 58 of the facing wall portion 52. Then, the shaft hole 93 of the second cover 92 is fitted to the pivot shaft 94 to prevent the floating wedge member 70 from falling off. Finally, the above-mentioned components are connected and integrated by caulking both ends of the pivot shaft 94.

次に、第２実施形態に係る角度調整金具３の使用方法について説明する。
図２８に示すように、第１部材５０に対して第２部材６０を矢印Ｂ方向に倒すと、浮動くさび部材７０の歯面７２とギア部６６とが噛合状態になる。また、浮動くさび部材７０は、くさび面５８ａとギア部６６との間に形成される次第に狭くなる空間に押し込まれる。このため、浮動くさび部材７０は、くさび作用により、第２部材６０のＢ方向への揺動を規制し、第１部材５０と第２部材６０との傾斜角度が維持（固定保持）される。
すなわち、図２８に示す噛合状態では、浮動くさび部材７０の歯面７２とギア部６６との噛合により、第２部材６０が滑ることなく、第１部材５０と第２部材６０との傾斜角度を確実に保持する。 Next, the usage method of the angle adjustment metal fitting 3 which concerns on 2nd Embodiment is demonstrated.
As shown in FIG. 28, when the second member 60 is tilted with respect to the first member 50 in the direction of arrow B, the tooth surface 72 of the floating wedge member 70 and the gear portion 66 are brought into an engaged state. Further, the floating wedge member 70 is pushed into a gradually narrowing space formed between the wedge surface 58 a and the gear portion 66. Therefore, the floating wedge member 70 restricts the swinging of the second member 60 in the B direction by the wedge action, and the inclination angle between the first member 50 and the second member 60 is maintained (fixed and held).
That is, in the meshing state shown in FIG. 28, the second member 60 does not slip due to the meshing between the tooth surface 72 of the floating wedge member 70 and the gear portion 66, and the inclination angle between the first member 50 and the second member 60 is increased. Hold securely.

逆に、第２部材を矢印Ａ方向に揺動させると、図２９に示すように、波状環部８５のバネ力に基づいて生じる連れ廻り摩擦力により、第２部材６０と一緒にくさび作動部材８１が共廻りを開始する。このため、浮動くさび部材７０は、くさび形窓部５８内で下方へ移動する。そして、浮動くさび部材７０の上端面がくさび作動部材８１のテーパー面８２ｂに押される。このため、浮動くさび部材７０は、くさび形窓部５８の誘導勾配面５８ｃを摺接しながら、ギア部６６から離反する方向へ小さく移動する。そして、浮動くさび部材７０はくさび形窓部５８の下部でくさび面５８ａ寄りに移動する。この結果、歯面７２とギア部６６との間に微小な隙間が生じ、浮動くさび部材７０は非接触遊離状態となる（図２９）。非接触遊離状態では、浮動くさび部材７０は、くさび形窓部５８の誘導勾配面５８ｃと、くさび作動部材８１のテーパー面８２ｂと、段部８２ｃと、の３点によって支持されている。非接触遊離状態では、浮動くさび部材７０とギア部６６とが接触することがないので、耳障りなカチカチ音が生ぜず、第２部材６０が矢印Ａ方向に静かに揺動する。また、くさび作動部材８１と第２部材６０との間に連れ廻り摩擦力が発生する間、浮動くさび部材７０はくさび作動部材８１に上方から押圧されるので、歯面７２とギア部６６とが噛み合うことはない。
すなわち、矢印Ａ方向に第２部材６０を揺動する操作を行っている間は、浮動くさび部材７０はガタツキを生じることなく保持され、浮動くさび部材７０の歯面７２とギア部６６との非接触状態を保持する。 Conversely, when the second member is swung in the direction of arrow A, as shown in FIG. 29, the wedge operating member together with the second member 60 is caused by the accompanying frictional force generated based on the spring force of the waved ring portion 85. 81 starts co-rotation. For this reason, the floating wedge member 70 moves downward in the wedge-shaped window portion 58. Then, the upper end surface of the floating wedge member 70 is pushed by the tapered surface 82 b of the wedge operating member 81. Therefore, the floating wedge member 70 moves small in the direction away from the gear portion 66 while slidingly contacting the guide gradient surface 58c of the wedge-shaped window portion 58. Then, the floating wedge member 70 moves toward the wedge surface 58 a at the lower part of the wedge-shaped window portion 58. As a result, a minute gap is generated between the tooth surface 72 and the gear portion 66, and the floating wedge member 70 is brought into a non-contact free state (FIG. 29). In the non-contact free state, the floating wedge member 70 is supported by three points: a guide gradient surface 58c of the wedge-shaped window portion 58, a tapered surface 82b of the wedge operation member 81, and a step portion 82c. In the non-contact free state, the floating wedge member 70 and the gear portion 66 do not come into contact with each other, so that an unpleasant ticking sound is not generated and the second member 60 is gently swung in the direction of arrow A. Further, while the frictional force is generated between the wedge operating member 81 and the second member 60, the floating wedge member 70 is pressed against the wedge operating member 81 from above, so that the tooth surface 72 and the gear portion 66 are connected. There is no meshing.
That is, during the operation of swinging the second member 60 in the direction of arrow A, the floating wedge member 70 is held without rattling, and the tooth surface 72 of the floating wedge member 70 and the gear portion 66 are not in contact with each other. Maintain contact.

図３０に示すように、第２部材６０を更に矢印Ａ方向に揺動させ、一方の押下げ用突起部６７で浮動くさび部材７０の上端面を押圧すると、くさび作動部材８１が共廻りするとともに、浮動くさび部材７０がくさび作動部材８１を押し下げる。このため、くさび作動部材８１に設けた板ばね部材８３の凸部８３ａが位置規制ピン５７を乗り越える。この結果、位置規制ピン５７が係止用凹部８３ｂに係止する。そして、浮動くさび部材７０の下端面が退避空間５８ｂに収納され、退避状態となる。
退避状態下では、浮動くさび部材７０が退避空間５８ｂ内に収納され、かつ、板ばね部材８３の係止用凹部８３ｂが位置規制ピン５７に係止している。このため、第２部材６０をＢ方向へ揺動しても、位置規制ピン５７に係止する板ばね部材８３のばね力で、ギア部６６と歯面７２とが噛合していない状態を保つ。この結果、くさび作動部材８１は共廻りせず、第１部材５０に対して第２部材６０はＢ方向に自由に揺動できる。 As shown in FIG. 30, when the second member 60 is further swung in the direction of arrow A and the upper end surface of the floating wedge member 70 is pressed by one pressing projection 67, the wedge operating member 81 rotates together. The floating wedge member 70 pushes down the wedge actuating member 81. Therefore, the convex portion 83 a of the leaf spring member 83 provided on the wedge operating member 81 gets over the position restricting pin 57. As a result, the position restricting pin 57 is locked to the locking recess 83b. Then, the lower end surface of the floating wedge member 70 is accommodated in the retreat space 58b and is in a retreated state.
Under the retracted state, the floating wedge member 70 is accommodated in the retracting space 58 b, and the locking recess 83 b of the leaf spring member 83 is locked to the position restricting pin 57. For this reason, even if the second member 60 is swung in the B direction, the state in which the gear portion 66 and the tooth surface 72 are not engaged with each other is maintained by the spring force of the leaf spring member 83 that is locked to the position restriction pin 57. . As a result, the wedge operating member 81 does not rotate together, and the second member 60 can freely swing in the B direction with respect to the first member 50.

次に、図３２に示すように、第２部材６０を矢印Ｂ方向へ揺動すると、第１部材５０に対して第２部材６０が直線状となる最終展開位置の直前で、押上げ用突起部６８が浮動くさび部材７０の下端面に当接する。
そして、第２部材６０を少し強く矢印Ｂ方向へ揺動すると、押上げ用突起部６８が浮動くさび部材７０の下端面を押し上げ、退避空間５８ｂから浮動くさび部材７０を上方へ移動させる。この際、浮動くさび部材７０の移動に伴って、浮動くさび部材７０の上端面がくさび作動部材８１のテーパー面８２ｂを押し上げる。このため、くさび作動部材８１が軸心Ｌを中心として図３２の時計回りに回動する。この結果、板ばね部材８３の係止用凹部８３ｂと位置規制ピン５７との係止状態が解除され、位置規制ピン５７が板ばね部材８３のガイド用凹部８３ｃに変位する。そして、くさび作動部材８１と第２部材６０との摩擦力により、両者は共廻りする。この結果、浮動くさび部材７０がくさび形窓部５８（くさび形空間）の上部へ移動し、浮動くさび部材７０の歯面７２とギア部６６とが噛合状態となる。 Next, as shown in FIG. 32, when the second member 60 is swung in the direction of arrow B, the push-up protrusion immediately before the final deployment position where the second member 60 is linear with respect to the first member 50. The portion 68 contacts the lower end surface of the floating wedge member 70.
When the second member 60 is slightly swung in the arrow B direction, the push-up projection 68 pushes up the lower end surface of the floating wedge member 70 and moves the floating wedge member 70 upward from the retreat space 58b. At this time, as the floating wedge member 70 moves, the upper end surface of the floating wedge member 70 pushes up the tapered surface 82 b of the wedge operating member 81. For this reason, the wedge operating member 81 rotates about the axis L in the clockwise direction of FIG. As a result, the locked state between the locking recess 83 b of the leaf spring member 83 and the position restricting pin 57 is released, and the position restricting pin 57 is displaced to the guide recessed portion 83 c of the leaf spring member 83. Then, due to the frictional force between the wedge operating member 81 and the second member 60, both rotate together. As a result, the floating wedge member 70 moves to the upper part of the wedge-shaped window portion 58 (wedge-shaped space), and the tooth surface 72 of the floating wedge member 70 and the gear portion 66 are engaged.

なお、本実施形態では、第１部材５０に対して第２部材６０が直線状（１８０度）となった位置を、最終展開位置としているが、必ずしもこれに限らない。ギア部６６を設ける中心角の範囲を適宜選択することにより、例えば、第１部材５０に対して第２部材６０が１２０度の角度を形成した位置を、最終展開位置としてもよい。 In the present embodiment, the position where the second member 60 is linear (180 degrees) with respect to the first member 50 is defined as the final deployed position, but is not necessarily limited thereto. For example, a position where the second member 60 forms an angle of 120 degrees with respect to the first member 50 may be set as the final deployed position by appropriately selecting a range of the central angle at which the gear portion 66 is provided.

ついで、第２部材６０を、再度、矢印Ａ方向に揺動させると、波状環部８５のバネ力に基づく連れ廻り摩擦力により、第２部材６０と一緒にくさび作動部材８１が共廻りを開始する。このため、浮動くさび部材７０は、くさび形窓部５８内で下方へ移動する。そして、浮動くさび部材７０の上端面がくさび作動部材８１のテーパー面８２ｂに押される。このため、浮動くさび部材７０は、くさび形窓部５８の誘導勾配面５８ｃを摺接しながら、ギア部６６から離反する方向へ小さく移動する。この結果、浮動くさび部材７０はくさび形窓部５８の下部でくさび面５８ａ寄りに配置されるので、歯面７２とギア部６６との間に微小な隙間が生じ、再び、浮動くさび部材７０は非接触遊離状態となる（図２９）。したがって、カチカチ音は発生しない。そして、第２部材６０を矢印Ｂ方向に揺動させると、浮動くさび部材７０の歯面７２とギア部６６とが噛合状態になる。さらに、浮動くさび部材７０は、くさび面５８ａとギア部６６との間に形成される次第に狭くなる空間に押し込まれる。このため、浮動くさび部材７０は、くさび作用により、第２部材６０のＢ方向への揺動を規制し、第１部材５０と第２部材６０との傾斜角度は維持（固定保持）され、図２８に図示された状態に戻る。 Next, when the second member 60 is swung again in the direction of arrow A, the wedge operating member 81 starts rotating together with the second member 60 due to the rotational frictional force based on the spring force of the wave-shaped ring portion 85. To do. For this reason, the floating wedge member 70 moves downward in the wedge-shaped window portion 58. Then, the upper end surface of the floating wedge member 70 is pushed by the tapered surface 82 b of the wedge operating member 81. Therefore, the floating wedge member 70 moves small in the direction away from the gear portion 66 while slidingly contacting the guide gradient surface 58c of the wedge-shaped window portion 58. As a result, since the floating wedge member 70 is disposed near the wedge surface 58a at the lower portion of the wedge-shaped window portion 58, a minute gap is generated between the tooth surface 72 and the gear portion 66, and the floating wedge member 70 is again formed. It will be in a non-contact free state (FIG. 29). Therefore, there is no ticking sound. And if the 2nd member 60 is rock | fluctuated in the arrow B direction, the tooth surface 72 and the gear part 66 of the floating wedge member 70 will be in a meshing state. Further, the floating wedge member 70 is pushed into a gradually narrowing space formed between the wedge surface 58 a and the gear portion 66. For this reason, the floating wedge member 70 restricts the swinging of the second member 60 in the direction B by the wedge action, and the inclination angle between the first member 50 and the second member 60 is maintained (fixed and held). Return to the state illustrated in FIG.

本発明に係る角度調整金具は、前述の実施形態に限らず、ソファー以外の家具等に使用してもよい。 The angle adjusting bracket according to the present invention is not limited to the above-described embodiment, and may be used for furniture other than the sofa.

１第１部材
２第２部材
３角度調整金具
４ギア部
６浮動くさび部材
７歯面
８くさび面
１０非接触遊離保持手段
１１くさび作動部材（作動プレート）
１２摺接部
３４ギア部
３６規制用小ギア部材
３７歯面
４６背部
４８ヘッドレスト部
５０第１部材
５１取付部
５２対面壁部
５３対面壁部
５６軸孔
５７位置規制ピン
５８くさび形窓部
５８ａくさび面
５８ｂ退避空間
５８くさび形窓部
５９誘導勾配面
６０第２部材
６１取付部
６２ギア板部
６３ギア板部
６４リベット
６５軸孔
６６ギア部
６７押下げ用突起部
６８押上げ用突起部
７０浮動くさび部材
７１当接面
７２歯面
８０非接触遊離保持手段
８１くさび作動部材
８２開口窓部
８２ａ円弧面
８２ｂテーパー面
８２ｃ段部
８３板ばね部材
８３ａ凸部
８３ｂ係止用凹部
８３ｃガイド用凹部
８４軸孔
８５波状環部（摺接部）
８６環状摺接部
９０第１カバー
９１軸孔
９２第２カバー
９３軸孔
９４枢結軸
Ｌ軸心
Ａ一方向（起立方向）
Ｂ他方向（傾倒方向） DESCRIPTION OF SYMBOLS 1 1st member 2 2nd member 3 Angle adjustment metal fitting 4 Gear part 6 Floating wedge member 7 Tooth surface 8 Wedge surface 10 Non-contact free holding means 11 Wedge action member (action plate)
12 sliding contact portion 34 gear portion 36 small gear member for restriction 37 tooth surface 46 back portion 48 headrest portion 50 first member 51 mounting portion 52 facing wall portion 53 facing wall portion 56 shaft hole 57 position restricting pin 58 wedge-shaped window portion 58a wedge Surface 58b Retraction space 58 Wedge-shaped window portion 59 Guide gradient surface 60 Second member 61 Mounting portion 62 Gear plate portion 63 Gear plate portion 64 Rivet 65 Shaft hole 66 Gear portion 67 Push-down projection portion 68 Push-up projection portion 70 Floating Wedge member 71 Abutting surface 72 Tooth surface 80 Non-contact free holding means 81 Wedge actuating member 82 Open window portion 82a Arc surface 82b Tapered surface 82c Stepped portion 83 Leaf spring member 83a Protruding portion 83b Locking recess portion 83c Guide recess portion 84 Shaft Hole 85 Wavy ring part (sliding contact part)
86 Annular sliding contact portion 90 First cover 91 Shaft hole 92 Second cover 93 Shaft hole 94 Pivoting shaft L Shaft center A One direction (standing direction)
B Other direction (tilt direction)

Claims

A first member (1) having a wedge surface (8) and a second member (2) having a gear portion (4) are pivotably pivoted, and the wedge surface (8) and the gear portion ( 4) and a floating wedge member (6) having a tooth surface (7) which is movably disposed in a wedge-shaped space formed between the gear portion and the gear portion (4), An angle adjusting bracket that enables relative swing in one direction (A) of the second member (2) relative to the first member (1) and restricts relative swing in the other direction (B). And
Non-contact free holding means for holding the tooth surface (7) and the gear part (4) of the floating wedge member (6) in a non-contact manner when swinging in the one direction (A). (10) An angle adjustment fitting (3) characterized by comprising.

The non-contact free holding means (10) includes a wedge actuating member (11) that rotates in a small angle range due to the accompanying frictional force with the second member (2),
As the second member (2) swings in the one direction (A) relative to the first member (1), the wedge actuating member (11) turns the tooth surface (7) of the floating wedge member (6). Is released from the gear part (4) in a non-contact state, and is brought into a non-contact free state.
Furthermore, the floating wedge member is interposed between the wedge surface (8) formed on the first member (1) side and the gear portion (4) by the small-angle swing in the other direction (B). (6) is pushed in so that the tooth surface (7) of the floating wedge member (6) and the gear portion (4) are engaged with each other, and the wedge action of the floating wedge member (6) causes the first member to be engaged. The angle adjusting bracket (3) according to claim 1, configured to restrict relative swinging of the second member (2) in the other direction (B) with respect to (1).

The non-contact free holding means (80) includes a wedge actuating member (81) that rotates in a small angle range due to the accompanying frictional force with the second member (60),
As the second member (60) swings in the one direction (A) with respect to the first member (50), the wedge actuating member (81) turns the tooth surface (72) of the floating wedge member (70). Is released from the gear part (66) in a non-contact state, and is brought into a non-contact free state.
Further, the floating wedge member is interposed between the wedge surface (58a) formed on the first member (50) side and the gear portion (66) by swinging the small angle in the other direction (B). (70) is pushed in so that the tooth surface (72) of the floating wedge member (70) and the gear portion (66) are engaged with each other, and the first member is moved by the wedge action of the floating wedge member (70). The angle adjusting bracket (3) according to claim 1, configured to restrict relative swinging of the second member (60) in the other direction (B) with respect to (50).

The said wedge action | operation member (11, 81) has a sliding contact part (12, 85) which slidably contacts with the said 2nd member (2, 60) and generates the said accompanying frictional force. The angle adjusting bracket (3) described in 1.

A headrest part (48) is attached to the upper edge of the back part (46) via the angle adjusting bracket (3) according to any one of claims 1 to 4, and the headrest part (48) is erected in an upright direction ( A sofa that can swing in the tilt direction (B) while allowing swinging in A).
The angle adjusting metal fitting (3) is a small gear member for regulation which is one of the floating wedge member (6) having a gear portion (34) and a tooth surface (37) meshable with the gear portion (34). (36), and when the headrest portion (48) swings in the standing direction (A), the gear portion (34) and the tooth surface (37) of the angle adjustment fitting (3). Is held in a non-contact free state, and the gear portion (34) of the angle adjustment fitting (3) and the tooth surface (37) are engaged with each other by a turning operation of a predetermined small angle in the tilting direction (B). A sofa configured to be in a state and to maintain the posture of the headrest portion (48).