JP5213691B2 - Universal joint - Google Patents

Universal joint Download PDF

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JP5213691B2
JP5213691B2 JP2008326136A JP2008326136A JP5213691B2 JP 5213691 B2 JP5213691 B2 JP 5213691B2 JP 2008326136 A JP2008326136 A JP 2008326136A JP 2008326136 A JP2008326136 A JP 2008326136A JP 5213691 B2 JP5213691 B2 JP 5213691B2
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pair
mounting
shaft
rotating shaft
universal joint
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JP2010144916A (en
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博文 藤本
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Simotec Co Ltd
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Simotec Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • F16C11/103—Arrangements for locking frictionally clamped

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Description

本発明は、二つの部品の一方を他方に回動自在に連結する自在継手に関する。   The present invention relates to a universal joint that rotatably connects one of two parts to the other.

従来、二つの部品の一方を他方に回動自在に連結する自在継手は公知となっている。例えば、このような自在継手の一種としてユニバーサルジョイントが広く知られている。
ユニバーサルジョイントは、駆動軸に連結された駆動側ヨークと、従動軸に連結された従動側ヨークと、駆動側ヨークと従動側ヨークとを回動可能に連結するクロスピンと、を備えている。
このクロスピンは、第一軸と、第一軸に直交する第二軸と、を有し、第一軸の両端部は駆動側ヨークに回動可能に軸支され、第二軸の両端部は従動側ヨークに回動可能に軸支されている。
ユニバーサルジョイントは、駆動側ヨークおよび従動側ヨークがクロスピンを介して相
互に回動しながら、駆動軸の駆動力を従動軸に伝達することが可能である。 Conventionally, universal joints that pivotably connect one of two parts to the other are known. For example, a universal joint is widely known as a kind of such a universal joint.
The universal joint includes a drive side yoke connected to the drive shaft, a driven side yoke connected to the driven shaft, and a cross pin that rotatably connects the drive side yoke and the driven side yoke.
This cross pin has a first axis and a second axis orthogonal to the first axis, and both ends of the first axis are pivotally supported by the drive side yoke, and both ends of the second axis are The driven yoke is pivotally supported so as to be rotatable.
The universal joint can transmit the driving force of the driving shaft to the driven shaft while the driving side yoke and the driven side yoke rotate with respect to each other via the cross pin.

しかし、ユニバーサルジョイントは、駆動側・従動側ヨークのうち、一方のヨークが他方のヨークに対して任意の角度で回動した状態でその回動姿勢を保持することを意図するものではない。   However, the universal joint is not intended to hold the rotating posture in a state where one of the driving side and driven side yokes is rotated at an arbitrary angle with respect to the other yoke.

また、ノート型パソコンにおいて、ディスプレイ装置をキーボード本体に開閉可能に取り付けるヒンジの技術が公知となっている（例えば、特許文献１参照）。
特許文献１に記載されているチルトヒンジは、ディスプレイ装置をキーボード本体に回動自在に連結するものであって、キーボード本体に取り付けられるホルダーと、ディスプレイ装置に取り付けられ、ホルダーに回動可能に軸支されるシャフトと、ホルダーとシャフトとの間に制動力を発生させることによりシャフトがホルダーに対して回動することを規制する制動部材と、を備えている。
この制動部材は、シャフトの軸方向に付勢力を付与する皿ばねと、皿ばねの付勢力を調整する締付ナットと、を備えている。特許文献１に記載されているチルトヒンジは、皿ばねが弾性変形することにより、皿ばねの付勢力に応じた摩擦力が発生して、シャフトの回動を規制することが可能である。 In addition, a hinge technique for attaching a display device to a keyboard body so as to be openable and closable in a notebook personal computer is known (see, for example, Patent Document 1).
The tilt hinge described in Patent Document 1 is to connect the display device to the keyboard main body so as to be rotatable. The tilt hinge is attached to the keyboard main body, and is attached to the display device. And a braking member that restricts rotation of the shaft relative to the holder by generating a braking force between the holder and the shaft.
The braking member includes a disc spring that applies an urging force in the axial direction of the shaft, and a tightening nut that adjusts the urging force of the disc spring. The tilt hinge described in Patent Document 1 can regulate the rotation of the shaft by generating a frictional force according to the urging force of the disc spring by elastically deforming the disc spring.

しかしながら、前記ユニバーサルジョイントにおいて、駆動側・従動側ヨークとクロスピントの回動連結部に、前記チルトヒンジに係る制動部材を単に組み込もうとすると、前記回動連結部が大きくなり、ひいてはユニバーサルジョイント自体が大きくなる。
特開２００５−１０６１３９号公報 However, in the universal joint, if the braking member related to the tilt hinge is simply incorporated into the rotational connection portion of the drive side / driven side yoke and the cross focus, the rotational connection portion becomes large, and consequently the universal joint itself. Becomes larger.
JP 2005-106139 A

本発明は以上の如き状況に鑑みてなされたものであり、姿勢保持可能、かつコンパクトな自在継手を提供する。   The present invention has been made in view of the situation as described above, and provides a compact universal joint capable of maintaining a posture.

本発明の解決しようとする課題は以上のとおりであり、次にこの課題を解決するための手段を説明する。   The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

すなわち、請求項１においては、
第一連結対象物を第二連結対象物に回動自在に連結する自在継手であって、
前記第一連結対象物に取り付けられる第一取付部材と、
前記第二連結対象物に取り付けられる第二取付部材と、
前記第一取付部材と前記第二取付部材とを回動可能に連結する連結部材と、を備え、
前記連結部材は、
前記第一取付部材に回動可能に軸支される第一回動軸部材と、
前記第一回動軸部材に直交するとともに、前記第二取付部材に回動可能に軸支される前記第二回動軸部材と、
前記第一回動軸部材と前記第一取付部材との間に制動力を発生させることにより前記第一取付部材が前記連結部材に対して前記第一回動軸部材の軸回りに回動することを規制する第一制動部材と、
前記第二回動軸部材と前記第二取付部材との間に制動力を発生させることにより前記第二取付部材が前記連結部材に対して前記第二回動軸部材の軸回りに回動することを規制する第二制動部材と、を備え、
前記第一取付部材は、
前記第一連結対象物に取り付けられる第一取付部と、
前記第一取付部に所定の間隔を空けて設けられ、前記第一回動軸部材の両端部を回動可能に軸支する一対の第一軸支部と、を有し、
前記第二取付部材は、
前記第二連結対象物に取り付けられる第二取付部と、
前記第二取付部に所定の間隔を空けて設けられ、前記第二回動軸部材の両端部を回動可能に軸支する一対の第二軸支部と、を有し、
前記一対の第一軸支部の間隔は、前記一対の第二軸支部の間隔よりも大きく、
前記第一取付部には、前記第一取付部材が前記第一回動軸部材の軸回りに回動したときに前記第二回動軸部材の軸端部を収容する切欠部が形成されるものである。 That is, in claim 1,
A universal joint for rotatably connecting the first connection object to the second connection object,
A first attachment member attached to the first connection object;
A second attachment member attached to the second connection object;
A connecting member that rotatably connects the first mounting member and the second mounting member;
The connecting member is
A first rotating shaft member pivotally supported by the first mounting member;
The second rotation shaft member that is orthogonal to the first rotation shaft member and is rotatably supported by the second mounting member;
By generating a braking force between the first rotating shaft member and the first mounting member, the first mounting member rotates about the axis of the first rotating shaft member with respect to the connecting member. A first braking member that regulates,
By generating a braking force between the second rotating shaft member and the second mounting member, the second mounting member rotates about the axis of the second rotating shaft member with respect to the connecting member. A second braking member that regulates ,
The first mounting member is
A first attachment portion attached to the first connection object;
A pair of first shaft support portions that are provided at a predetermined interval in the first mounting portion and pivotally support both end portions of the first rotation shaft member;
The second mounting member is
A second attachment portion attached to the second connection object;
A pair of second shaft support portions that are provided at a predetermined interval in the second mounting portion and pivotally support both end portions of the second rotation shaft member;
An interval between the pair of first shaft support portions is larger than an interval between the pair of second shaft support portions,
Wherein the first mounting portion, the cutout portion for accommodating the shaft end portion of the second pivot shaft member Ru is formed when the first mounting member is rotated about the axis of the first pivot shaft member Is.

請求項２においては、
前記第一制動部材は、
前記第一回動軸部材の軸方向に付勢力を付与する第一付勢部材と、
前記第一付勢部材の付勢力を調整する第一付勢力調整部材と、を備え、
前記第二制動部材は、
前記第二回動軸部材の軸方向に付勢力を付与する第二付勢部材と、
前記第二付勢部材の付勢力を調整する第二付勢力調整部材と、を備えるものである。 In claim 2,
The first braking member is
A first biasing member that applies a biasing force in the axial direction of the first rotation shaft member;
A first biasing force adjusting member that adjusts the biasing force of the first biasing member,
The second braking member is
A second biasing member that applies a biasing force in the axial direction of the second rotating shaft member;
And a second urging force adjusting member that adjusts the urging force of the second urging member.

請求項３においては、
前記第一付勢部材は、
前記第一回動軸部材に嵌装される第一ばね座金または第一波形座金であり、
前記第二付勢部材は、
前記第二回動軸部材に嵌装される第二ばね座金または第二波形座金であるものである。 In claim 3,
The first biasing member is
A first spring washer or a first wave washer fitted to the first rotating shaft member;
The second biasing member is
A second spring washer or a second corrugated washer fitted to the second rotating shaft member.

請求項４においては、
前記第一回動軸部材の軸心と前記第二回動軸部材の軸心とは、同一平面内に配置されるものである。 In claim 4 ,
The axis of the first rotating shaft member and the axis of the second rotating shaft member are arranged in the same plane.

請求項５においては、
前記連結部材は、
前記第一回動軸部材および前記第二回動軸部材を支持する支持部材を備えるものである。 In claim 5 ,
The connecting member is
A support member for supporting the first rotation shaft member and the second rotation shaft member is provided.

請求項６においては、
前記支持部材の形状は一端が開口されるとともに他端が閉塞された筒状であり、
前記第一回動軸部材は一対の第一軸片からなり、
前記第二回動軸部材は一対の第二軸片からなり、
前記一対の第一軸片および前記一対の第二軸片は前記支持部材の外周面から突出し、
前記支持部材の筒状の周面に設けられた一対の第一軸片の軸線は互いに一直線となり、
前記支持部材の筒状の周面に設けられた一対の第二軸片の軸線は互いに一直線となるものである。 In claim 6 ,
The shape of the support member is a cylindrical shape with one end opened and the other end closed,
The first rotating shaft member is composed of a pair of first shaft pieces,
The second rotating shaft member is composed of a pair of second shaft pieces,
The pair of first shaft pieces and the pair of second shaft pieces protrude from the outer peripheral surface of the support member,
The axes of the pair of first shaft pieces provided on the cylindrical peripheral surface of the support member are aligned with each other,
The axes of the pair of second shaft pieces provided on the cylindrical peripheral surface of the support member are aligned with each other.

請求項７においては、
前記支持部材は、
略四角形の中央板および前記中央板の四片からそれぞれ延設される四つの端板を有する略十字形の金属板を出発材とし、
前記金属板の四つの端板を前記中央板との境界部分で前記中央板に対して略垂直に折り曲げることにより成形されるものである。 In claim 7 ,
The support member is
Starting from a substantially cross-shaped metal plate having a substantially square central plate and four end plates respectively extending from four pieces of the central plate,
The four end plates of the metal plate are formed by being bent substantially perpendicular to the central plate at a boundary portion with the central plate.

請求項８においては、
前記支持部材の形状は両端が開口された筒状であり、
前記第一回動軸部材は一対の第一軸片からなり、
前記第二回動軸部材は一対の第二軸片からなり、
前記一対の第一軸片および前記一対の第二軸片は前記支持部材の外周面から突出し、
前記支持部材の筒状の周面に設けられた一対の第一軸片の軸線は互いに一直線となり、
前記支持部材の筒状の周面に設けられた一対の第二軸片の軸線は互いに一直線となるものである。 In claim 8 ,
The shape of the support member is a cylindrical shape with both ends opened,
The first rotating shaft member is composed of a pair of first shaft pieces,
The second rotating shaft member is composed of a pair of second shaft pieces,
The pair of first shaft pieces and the pair of second shaft pieces protrude from the outer peripheral surface of the support member,
The axes of the pair of first shaft pieces provided on the cylindrical peripheral surface of the support member are aligned with each other,
The axes of the pair of second shaft pieces provided on the cylindrical peripheral surface of the support member are aligned with each other.

請求項９においては、
前記第一回動軸部材に巻回され、一端部が前記連結部材に係止され、かつ他端部が前記第一取付部材に係止される第一捩りばねを備えるものである。 In claim 9 ,
A first torsion spring wound around the first rotating shaft member, having one end locked to the connecting member and the other end locked to the first mounting member is provided.

請求項１０においては、
前記第二回動軸部材に巻回され、一端部が前記連結部材に係止され、かつ他端部が前記第二取付部材に係止される第二捩りばねを備えるものである。 In claim 10 ,
A second torsion spring wound around the second rotating shaft member, having one end locked to the connecting member and the other end locked to the second mounting member is provided.

請求項１１においては、
前記第一連結対象物に取り付けられ、前記第一連結対象物と前記第一取付部材との間に配置される第三取付部材と、
前記第三取付部材を前記第一取付部材に回動可能に軸支する第三回動軸部材と、
前記第三取付部材と前記第一取付部材との間に制動力を発生させることにより前記第三取付部材が前記第一取付部材に対して前記第三回動軸部材の軸回りに回動することを規制する第三制動部材と、を備えるものである。 In claim 11 ,
A third attachment member attached to the first connection object, and disposed between the first connection object and the first attachment member;
A third rotating shaft member that pivotally supports the third mounting member on the first mounting member;
By generating a braking force between the third mounting member and the first mounting member, the third mounting member rotates about the third rotation shaft member with respect to the first mounting member. And a third braking member that regulates this.

請求項１２においては、
前記第二連結対象物に取り付けられ、前記第二連結対象物と前記第二取付部材との間に配置される第四取付部材と、
前記第四取付部材を前記第二取付部材に回動可能に軸支する第四回動軸部材と、
前記第四取付部材と前記第二取付部材との間に制動力を発生させることにより前記第四取付部材が前記第二取付部材に対して前記第四回動軸部材の軸回りに回動することを規制する第四制動部材と、を備えるものである。 In claim 12 ,
A fourth attachment member attached to the second connection object, and disposed between the second connection object and the second attachment member;
A fourth rotating shaft member that pivotally supports the fourth mounting member to the second mounting member;
By generating a braking force between the fourth mounting member and the second mounting member, the fourth mounting member rotates around the axis of the fourth rotating shaft member with respect to the second mounting member. And a fourth braking member that restricts this.

本発明の効果として、以下に示すような効果を奏する。   As effects of the present invention, the following effects can be obtained.

請求項１においては、第一連結対象物および第二連結対象物の一方を他方に対して回動可能に連結できるとともに、第一連結対象物および第二連結対象物の一方が他方に対して回動することを規制可能であるため、姿勢保持可能な自在継手をコンパクトに構成することが可能である。
また、自在継手のサイズを大きくすることなく、自在継手の回動角を大きくすることが可能であるため、回動角が大きな自在継手をコンパクトに構成することが可能である。 In claim 1, one of the first connection object and the second connection object can be rotatably connected to the other, and one of the first connection object and the second connection object is connected to the other. Since it is possible to restrict the rotation, a universal joint capable of maintaining a posture can be configured in a compact manner.
In addition, since the rotation angle of the universal joint can be increased without increasing the size of the universal joint, a universal joint having a large rotation angle can be configured compactly.

請求項２においては、連結対象物の重量に応じて制動力を調整することが可能であるため、連結対象物が重い場合でも制動力を大きくすることにより、姿勢保持が可能である。   According to the second aspect of the present invention, the braking force can be adjusted according to the weight of the connection target. Therefore, even when the connection target is heavy, the posture can be maintained by increasing the braking force.

請求項３においては、付勢部材を小さな部品で構成することが可能であるため、自在継手をコンパクトに構成することが可能である。   According to the third aspect of the present invention, since the urging member can be composed of small parts, the universal joint can be configured compactly.

請求項４においては、第一連結対象物および第二連結対象物の間の軸間距離を詰めることが可能であるため、自在継手をコンパクトに構成することが可能である。 According to the fourth aspect of the present invention, since the inter-axis distance between the first connection object and the second connection object can be reduced, the universal joint can be configured compactly.

請求項５においては、連結部材が第一回動軸部材および第二回動軸部材を支持する機能を有することにより、連結部材とは別に第一回動軸部材および第二回動軸部材を支持する専用の部材を設ける必要がないため、自在継手をコンパクトに構成することが可能である。 In claim 5 , the connecting member has a function of supporting the first rotating shaft member and the second rotating shaft member, so that the first rotating shaft member and the second rotating shaft member are separated from the connecting member. Since it is not necessary to provide a dedicated member to support, the universal joint can be configured compactly.

請求項６においては、支持部材を筒状部材で構成できるため、支持部材の形状を簡素化することが可能であるとともに、筒状部材の他端が閉塞されているため、支持部材の強度を向上することが可能である。 In claim 6 , since the support member can be formed of a cylindrical member, the shape of the support member can be simplified, and the other end of the cylindrical member is closed, so that the strength of the support member is increased. It is possible to improve.

請求項７においては、支持部材を折り曲げて成形できるため、支持部材を簡単に製造可能である。 According to the seventh aspect , since the support member can be bent and molded, the support member can be easily manufactured.

請求項８においては、支持部材を筒状部材で構成できるため、支持部材の形状を簡素化することが可能である。 According to the eighth aspect of the present invention , since the support member can be composed of a cylindrical member, the shape of the support member can be simplified.

請求項９においては、連結対象物の重量が大きい場合であっても連結対象物の回動を規制可能であるため、連結対象物を所望の姿勢で確実に支持できる。 In the ninth aspect , since the rotation of the connection object can be restricted even when the weight of the connection object is large, the connection object can be reliably supported in a desired posture.

請求項１０においては、連結対象物の重量が大きい場合であっても連結対象物の回動を規制可能であるため、連結対象物を所望の姿勢で確実に支持できる。 In the tenth aspect , since the rotation of the connection object can be restricted even when the weight of the connection object is large, the connection object can be reliably supported in a desired posture.

請求項１１においては、連結対象物が第一回動軸部材の軸回りおよび第二回動軸部材の軸回りの二方向に加えて第三回動軸部材の軸回りにも回動可能であるとともに、連結対象物の回動を規制可能であるため、姿勢の自由度が高く、かつ姿勢保持可能な自由継手を構成することが可能である。 In the eleventh aspect , the object to be connected can be rotated about the axis of the third rotating shaft member in addition to the two directions of the axis of the first rotating shaft member and the axis of the second rotating shaft member. In addition, since the rotation of the connection object can be restricted, it is possible to configure a free joint that has a high degree of freedom in posture and can hold the posture.

請求項１２においては、連結対象物が第一回動軸部材の軸回りおよび第二回動軸部材の軸回りの二方向に加えて第四回動軸部材の軸回りにも回動可能であるとともに、連結対象物の回動を規制可能であるため、姿勢の自由度が高く、かつ姿勢保持可能な自由継手を構成することが可能である。 According to a twelfth aspect of the present invention, the object to be connected can be rotated about the axis of the fourth rotating shaft member in addition to the two directions around the axis of the first rotating shaft member and the axis of the second rotating shaft member. In addition, since the rotation of the connection object can be restricted, it is possible to configure a free joint that has a high degree of freedom in posture and can hold the posture.

次に、発明を実施するための最良の形態を説明する。   Next, the best mode for carrying out the invention will be described.

先ず、本発明の第一実施例に係る自由継手１００について、図１から図１１により説明する。
図１に示すように、第一実施例に係る自由継手１００は、ディスプレイ装置２を取付部材３に回動自在に連結するものである。 First, a free joint 100 according to a first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the free joint 100 according to the first embodiment connects the display device 2 to the mounting member 3 so as to be rotatable.

ディスプレイ装置２は、自由継手１００により取付部材３に連結されるものであり、本発明に係る第一連結対象物の実施の一形態である。
ディスプレイ装置２は、画像を表示可能な装置を指す。ディスプレイ装置の具体例としては、ブラウン管方式、プラズマ方式、液晶方式、あるいは有機ＥＬ（Ｏｒｇａｎｉｃ Ｅｌｅｃｔｒｏ―Ｌｕｍｉｎｅｓｃｅｎｃｅ）方式等の種々のテレビジョン、パーソナルコンピュータ要のディスプレイ（ＣＲＴ、液晶ディスプレイ等）が挙げられる。 The display device 2 is connected to the attachment member 3 by a free joint 100, and is an embodiment of the first connection object according to the present invention.
The display device 2 refers to a device that can display an image. Specific examples of the display device include various televisions such as a cathode ray tube system, a plasma system, a liquid crystal system, or an organic EL (Organic Electro-Luminescence) system, and displays (CRT, liquid crystal display, etc.) necessary for a personal computer.

取付部材３は、自由継手１００によりディスプレイ装置２に連結されるものであり、本発明に係る第二連結対象物の実施の一形態である。   The attachment member 3 is connected to the display device 2 by a free joint 100, and is an embodiment of the second connection object according to the present invention.

「第一連結対象物」および「第二連結対象物」は、それぞれ自由継手により連結される
二つの物品の一方および他方を指す。なお、「第一連結対象物」および「第二連結対象物」のいずれか一方が固定構造物あるいは地面でもよい。
なお、本発明に係る第一連結対象物はディスプレイ装置２に限定されるものではなく、本発明に係る第二連結対象物は取付部材３に限定されるものではない。
本発明に係る第一連結対象物および第二連結対象物の組み合わせの例としては、（ａ）スピーカー、プロジェクター、ディスプレイ装置（液晶ディスプレイ、プラズマディスプレイ等）、鏡等を含む群の中から選択された一つ、および、（ｂ）建物の構成要素（壁、柱、梁等）、家具その他の調度品（例えば、テレビジョン、ＤＶＤレコーダ等のＡＶ機器を収納する棚）、ディスプレイ装置を床面あるいは地面に自立させるためのスタンドその他の構造物を含む群の中から選択された一つ、の組み合わせが挙げられる。 “First connection object” and “second connection object” refer to one and the other of two articles that are connected by a free joint, respectively. One of the “first connection object” and the “second connection object” may be a fixed structure or the ground.
The first connection object according to the present invention is not limited to the display device 2, and the second connection object according to the present invention is not limited to the attachment member 3.
Examples of the combination of the first connection object and the second connection object according to the present invention are selected from the group including (a) a speaker, a projector, a display device (liquid crystal display, plasma display, etc.), a mirror, and the like. And (b) building components (walls, columns, beams, etc.), furniture and other furnishings (for example, shelves for storing AV equipment such as televisions, DVD recorders, etc.), display devices on the floor Or the combination of one selected from the group containing the stand and other structures for making it stand on the ground is mentioned.

図１から図３に示すように、自由継手１００は、ディスプレイ装置２に取り付けられる第一取付ブラケット１０と、取付部材３に取り付けられる第二取付ブラケット２０と、第一取付ブラケット１０と第二取付ブラケット２０とを回動可能に連結する連結ブラケット３０と、を備える。   As shown in FIGS. 1 to 3, the free joint 100 includes a first mounting bracket 10 that is mounted on the display device 2, a second mounting bracket 20 that is mounted on the mounting member 3, and the first mounting bracket 10 and the second mounting. And a connecting bracket 30 that rotatably connects the bracket 20.

図４に示すように、第一取付ブラケット１０は、第一基板１１と、一対の第一側板１２・１２と、を有する。   As shown in FIG. 4, the first mounting bracket 10 includes a first substrate 11 and a pair of first side plates 12 and 12.

第一基板１１は、ディスプレイ装置２に取り付けられる部分である。第一基板１１は、略長方形状の板状部材である。第一基板１１のディスプレイ装置２に対向する側の面は、ディスプレイ装置２に取り付けられる取付面１１１とされる。第一基板１１の四隅部には、ボルト等を貫装するための複数の貫通孔が形成される。第一基板１１の一対の長辺には、一対の切欠部１１２・１１２がそれぞれ形成される。第一基板１１の一対の短辺には、一対の第一側板１２・１２の一辺がそれぞれ連なる。   The first substrate 11 is a part attached to the display device 2. The first substrate 11 is a substantially rectangular plate member. A surface of the first substrate 11 facing the display device 2 is an attachment surface 111 attached to the display device 2. In the four corners of the first substrate 11, a plurality of through holes for penetrating bolts and the like are formed. A pair of notches 112 and 112 are formed on the pair of long sides of the first substrate 11, respectively. One side of the pair of first side plates 12, 12 is connected to the pair of short sides of the first substrate 11.

本実施例では、第一基板１１の一対の短辺となる部分から一対の第一側板１２・１２が第一基板１１の板面に対して平行に突出する一枚の金属板が成形された後、第一基板１１の一対の短辺となる部分と一対の第一側板１２・１２との境界線にて、第一基板１１の板面と一対の第一側板１２・１２の板面とが略垂直を成すように金属板が折り曲げられることにより、第一取付ブラケット１０が構成される。   In the present embodiment, a single metal plate is formed in which the pair of first side plates 12 and 12 protrudes in parallel with the plate surface of the first substrate 11 from the portions that become the pair of short sides of the first substrate 11. Thereafter, at the boundary line between the pair of short sides of the first substrate 11 and the pair of first side plates 12 and 12, the plate surface of the first substrate 11 and the plate surfaces of the pair of first side plates 12 and 12 The first mounting bracket 10 is configured by bending the metal plate so that is substantially vertical.

一対の切欠部１１２・１１２は、第一基板１１の板面に垂直な方向から見たときに略「半円形状」となる。一対の切欠部１１２・１１２は、第一基板１１の一対の長辺において略中央部にそれぞれ配置される。   The pair of notches 112 and 112 are substantially “semicircular” when viewed from the direction perpendicular to the plate surface of the first substrate 11. The pair of notches 112 and 112 are respectively disposed at substantially central portions on the pair of long sides of the first substrate 11.

一対の第一側板１２・１２は、所定の間隔（図３に示す間隔Ｄ１）を空けて第一基板１１の一対の短辺にそれぞれ連なっている。一対の第一側板１２・１２の板面は互いに平行となるとともに、第一基板１１の板面に対して一対の第一側板１２・１２の板面は直交する。つまり、一対の第一側板１２・１２および第一基板１１は、第一基板１１の短手方向から見たときに略「コ」の字形となる。   The pair of first side plates 12 and 12 are respectively connected to the pair of short sides of the first substrate 11 with a predetermined interval (interval D1 shown in FIG. 3). The plate surfaces of the pair of first side plates 12 and 12 are parallel to each other, and the plate surfaces of the pair of first side plates 12 and 12 are orthogonal to the plate surface of the first substrate 11. That is, the pair of first side plates 12 and 12 and the first substrate 11 have a substantially “U” shape when viewed from the short side of the first substrate 11.

なお、一対の第一側板１２・１２の構造は略同一であるため、以下の説明では、一方の第一側板１２を中心に説明し、他方の第一側板１２については必要な場合にのみ説明する。   In addition, since the structure of a pair of 1st side plate 12 * 12 is substantially the same, in the following description, it demonstrates centering on one 1st side plate 12, and only demonstrates the other 1st side plate 12 only when needed. To do.

第一側板１２は、第一基板１１の取付面１１１とは反対方向に延出される。第一側板１２の具体的な形状は、第一基板１１の短辺の両端部から互いに対向する二辺が平行に延出され、さらに、第一基板１１の短辺中央部に向かって所定の角度で傾斜しながら延出された後、この二辺の延出先端部が丸みを帯びた状態で結合する形状である。   The first side plate 12 extends in the direction opposite to the mounting surface 111 of the first substrate 11. The specific shape of the first side plate 12 is such that two sides facing each other are extended in parallel from both ends of the short side of the first substrate 11, and further, a predetermined shape is directed toward the center of the short side of the first substrate 11. After extending while inclining at an angle, the extending tips of the two sides are joined in a rounded state.

第一側板１２の延出先端部には、係止溝１２１が形成される。第一側板１２において係止溝１２１から取付面１１１方向に所定の間隔を空けた部分には、ボルト等を貫装するための貫通孔１２２が形成される。一対の貫通孔１２２・１２２の中心は、一対の第一側板１２・１２の板面に垂直な方向から見たときに互いに一致する。貫通孔１２２から取付面１１１方向に所定の間隔を空けた第一側板１２には、係止孔１２３が形成される。   A locking groove 121 is formed at the extending tip of the first side plate 12. A through-hole 122 for penetrating a bolt or the like is formed in a portion of the first side plate 12 spaced from the locking groove 121 in the direction of the mounting surface 111 by a predetermined distance. The centers of the pair of through holes 122 and 122 coincide with each other when viewed from the direction perpendicular to the plate surfaces of the pair of first side plates 12 and 12. A locking hole 123 is formed in the first side plate 12 spaced a predetermined distance from the through hole 122 in the direction of the mounting surface 111.

なお、本実施例に係る第一取付ブラケット１０は、一枚の板状部材を折り曲げて成形（プレス加工）したものであるが、本発明に係る第一取付部材は、例えば複数の部材を溶接あるいはネジ止め等により組み合わせたものでもよい。   The first mounting bracket 10 according to the present embodiment is formed by bending (pressing) a single plate-like member, but the first mounting member according to the present invention welds, for example, a plurality of members. Alternatively, a combination of screws may be used.

図５に示すように、第二取付ブラケット２０は、一対の第二基板２１・２１と、一対の第二側板２２・２２と、を有する。   As shown in FIG. 5, the second mounting bracket 20 includes a pair of second substrates 21 and 21 and a pair of second side plates 22 and 22.

一対の第二基板２１・２１は、それぞれ取付部材３に取り付けられる部分である。一対の第二基板２１・２１の取付部材３に対向する側の面は、取付部材３に取り付けられる一対の取付面２１１・２１１とされる（図１参照）。一対の第二基板２１・２１は、それぞれ略長方形状の板状部材である。一対の第二基板２１・２１は、長辺の一辺同士を互いに対向するように所定の隙間を空けて配置される。一対の第二基板２１・２１において、互いに対向する一対の長辺とは反対側の長辺（以下「反対向する長辺」という。）と一対の短辺とが成す四隅部には、ボルト等を貫装するための複数の貫通孔が形成される。一対の第二基板２１・２１において一対の反対向する長辺には、一対の第二側板２２・２２の一辺がそれぞれ連なる。   The pair of second substrates 21 and 21 are portions attached to the attachment member 3, respectively. The surface of the pair of second substrates 21 and 21 facing the mounting member 3 is a pair of mounting surfaces 211 and 211 that are mounted on the mounting member 3 (see FIG. 1). Each of the pair of second substrates 21 and 21 is a substantially rectangular plate member. The pair of second substrates 21 and 21 are arranged with a predetermined gap so that one side of the long side faces each other. In the pair of second substrates 21, 21, bolts are provided at four corners formed by a long side opposite to the pair of long sides facing each other (hereinafter referred to as “long side opposite to each other”) and a pair of short sides. A plurality of through holes are formed for penetrating the like. One side of the pair of second side plates 22, 22 is connected to the pair of oppositely opposed long sides of the pair of second substrates 21, 21.

本実施例では、一対の第二基板２１・２１の反対向する長辺となる部分から一対の第二側板２２・２２が一対の第二基板２１・２１の板面に対して平行に突出する二枚の金属板が成形された後、一対の第二基板２１・２１の反対向する長辺となる部分と一対の第二側板２２・２２との境界線にて、一対の第二基板２１・２１の板面と一対の第二側板２２・２２の板面とが略垂直を成すように金属板が折り曲げられることにより、第二取付ブラケット２０が構成される。   In the present embodiment, the pair of second side plates 22, 22 protrudes in parallel with the plate surfaces of the pair of second substrates 21, 21 from the opposite long sides of the pair of second substrates 21, 21. After the two metal plates are formed, the pair of second substrates 21 at the boundary line between the pair of second substrates 21 and 21 and the pair of second side plates 22 and 22 that are opposite long sides of the pair of second substrates 21 and 21. The second mounting bracket 20 is configured by bending the metal plate so that the plate surface of 21 and the plate surfaces of the pair of second side plates 22 and 22 are substantially perpendicular.

一対の第二側板２２・２２は、所定の間隔（図３に示す間隔Ｄ２）を空けて一対の第二基板２１・２１の反対向側の長辺にそれぞれ連なる。ここで、図３に示すように、第二取付ブラケット２０における一対の第二側板２２・２２の間隔Ｄ２は、第一取付ブラケット１０における一対の第一側板１２・１２の間隔Ｄ１よりも小さい。つまり、第一取付ブラケット１０における一対の第一側板１２・１２の間隔Ｄ１は、第二取付ブラケット２０における一対の第二側板２２・２２の間隔Ｄ２よりも大きい。   The pair of second side plates 22 and 22 are connected to the long sides on the opposite side of the pair of second substrates 21 and 21 with a predetermined interval (interval D2 shown in FIG. 3). Here, as shown in FIG. 3, the distance D2 between the pair of second side plates 22 and 22 in the second mounting bracket 20 is smaller than the distance D1 between the pair of first side plates 12 and 12 in the first mounting bracket 10. That is, the distance D1 between the pair of first side plates 12 and 12 in the first mounting bracket 10 is larger than the distance D2 between the pair of second side plates 22 and 22 in the second mounting bracket 20.

一対の第二側板２２・２２の板面は互いに平行となるとともに、一対の第二基板２１・２１の板面に対して一対の第二側板２２・２２の板面は直交する。つまり、一対の第二側板２２・２２および一対の第二基板２１・２１は、一対の第二基板２１・２１の長手方向から見たときに略「コ」の字形となる。   The plate surfaces of the pair of second side plates 22 and 22 are parallel to each other, and the plate surfaces of the pair of second side plates 22 and 22 are orthogonal to the plate surfaces of the pair of second substrates 21 and 21. That is, the pair of second side plates 22 and 22 and the pair of second substrates 21 and 21 have a substantially “U” shape when viewed from the longitudinal direction of the pair of second substrates 21 and 21.

なお、一対の第二側板２２・２２の構造は略同一であるため、以下の説明では、一方の第二側板２２を中心に説明し、他方の第二側板２２については必要な場合にのみ説明する。   In addition, since the structure of a pair of 2nd side plates 22 and 22 is substantially the same, in the following description, it demonstrates centering around the 1st 2nd side plate 22, and only demonstrates the other 2nd side plate 22 only when it is required. To do.

図５に示すように、第二側板２２は、第二基板２１の取付面２１１とは反対方向に延出される。第二側板２２の具体的な形状は、一対の第二基板２１・２１の反対向する長辺の両端部から互いに対向する二辺が第二基板２１の長辺中央部に向かって所定の角度で傾斜しながら延出された後、この二辺の延出先端部が第二基板２１の長辺中央部に向かって屈曲されて、第二基板２１の長辺と平行な一辺を成して結合する形状である。   As shown in FIG. 5, the second side plate 22 extends in the direction opposite to the mounting surface 211 of the second substrate 21. The specific shape of the second side plate 22 is such that two sides facing each other from the opposite ends of the pair of second substrates 21, 21 are at a predetermined angle toward the center of the long side of the second substrate 21. After extending while tilting, the extending tip portions of the two sides are bent toward the central portion of the long side of the second substrate 21 to form one side parallel to the long side of the second substrate 21. It is a shape to join.

第二側板２２の延出先端部には、係止溝２２１が形成される。第二側板２２において係止溝２２１から取付面２１１方向に所定の間隔を空けた部分には、ボルト等を貫装するための貫通孔２２２が形成される。一対の貫通孔２２２・２２２の中心は、一対の第二側板２２・２２の板面に垂直な方向から見たとき互いに一致する。貫通孔２２２から取付面２１１方向に所定の間隔を空けた第二側板２２には、係止孔２２３が形成される。   A locking groove 221 is formed at the extending tip of the second side plate 22. A through hole 222 for penetrating a bolt or the like is formed in a portion of the second side plate 22 that is spaced from the locking groove 221 in the direction of the mounting surface 211 by a predetermined distance. The centers of the pair of through holes 222 and 222 coincide with each other when viewed from the direction perpendicular to the plate surfaces of the pair of second side plates 22 and 22. A locking hole 223 is formed in the second side plate 22 that is spaced from the through hole 222 in the direction of the mounting surface 211.

なお、本実施例に係る第二取付ブラケット２０は、板状部材を折り曲げて成形（プレス加工）したものであるが、本発明に係る第二取付部材は、例えば複数の部材を溶接あるいはネジ止め等により組み合わせたものでもよい。また、本実施例に係る一対の第二基板２１・２１は、二枚の板状部材を組み合わせたものであるが、本発明に係る第二取付部は、一枚の板状部材で構成してもよい。   The second mounting bracket 20 according to the present embodiment is formed by bending (pressing) a plate-like member, but the second mounting member according to the present invention is, for example, welded or screwed with a plurality of members. A combination of these may be used. Moreover, although a pair of 2nd board | substrates 21 and 21 which concern on a present Example combine two plate-shaped members, the 2nd attachment part which concerns on this invention comprises a single plate-shaped member. May be.

図６に示すように、連結ブラケット３０は、基板３１と、一対の長側板３２・３２と、一対の短側板３３・３３と、を有している。
基板３１は本発明に係る金属板の中央板の実施の一形態であり、一対の長側板３２・３２および一対の短側板３３・３３を合わせたものは本発明に係る四つの端板の実施の一形態であり、基板３１、一対の長側板３２・３２および一対の短側板３３・３３を合わせたものは本発明に係る支持部材の実施の一形態である。 As shown in FIG. 6, the connection bracket 30 includes a substrate 31, a pair of long side plates 32 and 32, and a pair of short side plates 33 and 33.
The substrate 31 is an embodiment of the central plate of the metal plate according to the present invention, and the combination of the pair of long side plates 32 and 32 and the pair of short side plates 33 and 33 is an embodiment of the four end plates according to the present invention. A combination of the substrate 31, the pair of long side plates 32 and 32, and the pair of short side plates 33 and 33 is an embodiment of the support member according to the present invention.

基板３１、一対の長側板３２・３２、および一対の短側板３３・３３は、いずれも略長方形状の板状部材である。基板３１の一対の長辺に一対の長側板３２・３２の長辺がそれぞれ連なるとともに、基板３１の一対の短辺に一対の短側板３３・３３の長辺がそれぞれ連なる。   The substrate 31, the pair of long side plates 32, 32, and the pair of short side plates 33, 33 are all substantially rectangular plate members. The long sides of the pair of long side plates 32 and 32 are connected to the pair of long sides of the substrate 31, respectively, and the long sides of the pair of short side plates 33 and 33 are connected to the pair of short sides of the substrate 31, respectively.

本実施例では、基板３１の一対の長辺となる部分から一対の長側板３２・３２が基板３１の板面に対して平行に突出するとともに、基板３１の一対の短辺となる部分から一対の短側板３３・３３が基板３１の板面に対して平行に突出する一枚の金属板（略十字形）が出発材として成形された後、基板３１の一対の長辺となる部分との境界線にて一対の長側板３２・３２が基板３１の板面に直交する一の方向に折り曲げられるとともに、基板３１の一対の短辺となる部分との境界線にて一対の短側板３３・３３が基板３１の板面に直交する一の方向に折り曲げられることにより、本発明に係る支持部材の実施の一形態が成形される。
つまり、基板３１、一対の長側板３２・３２、および一対の短側板３３・３３を合わせたものは、これらの境界部分を折り曲げることにより「一端が開口されるとともに他端が閉塞された筒状」となる。 In this embodiment, the pair of long side plates 32 and 32 protrudes in parallel with the plate surface of the substrate 31 from the pair of long side portions of the substrate 31 and the pair of long side plates 32 and 32 protrudes from the pair of short side portions of the substrate 31. The short side plates 33 and 33 are formed as a starting material from a single metal plate (substantially cross-shaped) projecting parallel to the plate surface of the substrate 31, and then a pair of long sides of the substrate 31 are formed. The pair of long side plates 32, 32 are bent in one direction perpendicular to the plate surface of the substrate 31 at the boundary line, and the pair of short side plates 33, 32 are formed at the boundary line with the pair of short sides of the substrate 31. One embodiment of the support member according to the present invention is formed by bending 33 in one direction orthogonal to the plate surface of the substrate 31.
In other words, the combination of the substrate 31, the pair of long side plates 32 and 32, and the pair of short side plates 33 and 33 is formed by bending the boundary portion so that “one end is opened and the other end is closed. "

一対の長側板３２・３２の板面は互いに平行となる。一対の長側板３２・３２の略中央部には、ボルト等を貫装するための一対の貫通孔３２１・３２１が形成される。一対の貫通孔３２１・３２１の中心は、基板３１の短手方向から見たときに互いに一致する。   The plate surfaces of the pair of long side plates 32 and 32 are parallel to each other. A pair of through-holes 321 and 321 for penetrating bolts and the like are formed at substantially central portions of the pair of long side plates 32 and 32. The centers of the pair of through holes 321 and 321 coincide with each other when viewed from the short direction of the substrate 31.

一対の短側板３３・３３の板面は互いに平行となる。一対の短側板３３・３３の略中央部には、ボルト等を貫装するための一対の貫通孔３３１・３３１が形成される。一対の貫通孔３３１・３３１の中心は、基板３１の長手方向から見たときに互いに一致する。   The plate surfaces of the pair of short side plates 33 and 33 are parallel to each other. A pair of through holes 331 and 331 for penetrating bolts and the like are formed at substantially the center of the pair of short side plates 33 and 33. The centers of the pair of through holes 331 and 331 coincide with each other when viewed from the longitudinal direction of the substrate 31.

本実施例では、一対の貫通孔３２１・３２１の中心と一対の貫通孔３３１・３３１の中心とは、同一平面内に配置される。一対の貫通孔３２１・３２１の中心同士を結ぶ線と一対の貫通孔３３１・３３１の中心同士を結ぶ線とは、基板３１の板面に垂直な方向から見たときに互いに直交する。   In the present embodiment, the centers of the pair of through holes 321 and 321 and the centers of the pair of through holes 331 and 331 are arranged in the same plane. A line connecting the centers of the pair of through holes 321 and 321 and a line connecting the centers of the pair of through holes 331 and 331 are orthogonal to each other when viewed from a direction perpendicular to the plate surface of the substrate 31.

なお、本実施例に係る連結ブラケット３０は「一端が開口されるとともに他端が閉塞された略直方体形状」に構成されるものであるが、本発明に係る連結部材はこれに限定されない。例えば、連結部材の形状が「一端が開口されるとともに他端が閉塞された略円柱形状（一端が開口された円筒形状）」でも良く、「略枠状（両端が開口された角筒状）」でも良く、「略環状（両端が開口された円筒状）」でもよい。
ただし、連結部材の強度をより向上させる観点からは、「両端が開口された筒状（円筒状、角筒状を含む）」よりも「一端が開口されるとともに他端が閉塞された筒状（円筒状、角筒状を含む）」であることが望ましい。 In addition, although the connection bracket 30 which concerns on a present Example is comprised in "the substantially rectangular parallelepiped shape by which one end was opened and the other end was obstruct | occluded," the connection member which concerns on this invention is not limited to this. For example, the shape of the connecting member may be “substantially columnar shape with one end opened and the other end closed (cylindrical shape with one end opened)” or “substantially frame shape (square tube shape with both ends opened)” Or “substantially annular (cylindrical with both ends opened)”.
However, from the viewpoint of further improving the strength of the connecting member, “a cylindrical shape in which one end is opened and the other end is closed” rather than a “cylindrical shape in which both ends are open (including a cylindrical shape and a square cylindrical shape)”. (Including cylindrical and rectangular tube shapes) "is desirable.

図７から図９に示すように、連結ブラケット３０は、一対の第一回動ボルト３４・３４と、一対の第二回動ボルト３５・３５と、一対の第一制動部材３６・３６と、一対の第二制動部材３７・３７と、を備える。
一対の第一回動ボルト３４・３４は本発明に係る第一軸部材の実施の一形態であるとともに本発明に係る一対の第一軸片の実施の一形態である。
一対の第二回動ボルト３５・３５は本発明に係る第二軸部材の実施の一形態であるとともに本発明に係る一対の第二軸片の実施の一形態である。 As shown in FIGS. 7 to 9, the connecting bracket 30 includes a pair of first rotating bolts 34, 34, a pair of second rotating bolts 35, 35, a pair of first braking members 36, 36, A pair of second braking members 37.
The pair of first rotating bolts 34 and 34 is an embodiment of the first shaft member according to the present invention and an embodiment of the pair of first shaft pieces according to the present invention.
The pair of second rotating bolts 35 and 35 is an embodiment of the second shaft member according to the present invention and an embodiment of the pair of second shaft pieces according to the present invention.

図７および図９に示すように、一対の第一回動ボルト３４・３４は、第一取付ブラケット１０に回動可能に軸支される。一対の第一回動ボルト３４・３４は、いずれも頭部３４１と、頭部３４１から延設される軸部３４２と、を有する。一対の第一回動ボルト３４・３４の軸部３４２・３４２は、それぞれ連結ブラケット３０の一対の短側板３３・３３の貫通孔３３１・３３１、および第一取付ブラケット１０の一対の第一側板１２・１２の貫通孔１２２・１２２に貫装される。一対の軸部３４２・３４２は、一対の第一側板１２・１２に回動可能に軸支される。一対の第一側板１２・１２から突出する一対の軸部３４２・３４２の端部には、一対の雄ねじ部３４２Ａ・３４２Ａが形成される。   As shown in FIGS. 7 and 9, the pair of first rotating bolts 34 and 34 are pivotally supported by the first mounting bracket 10 so as to be rotatable. Each of the pair of first rotation bolts 34 and 34 has a head 341 and a shaft portion 342 extending from the head 341. The shaft portions 342 and 342 of the pair of first rotating bolts 34 and 34 are respectively connected to the through holes 331 and 331 of the pair of short side plates 33 and 33 of the connection bracket 30 and the pair of first side plates 12 of the first mounting bracket 10. -It penetrates in 12 through-holes 122-122. The pair of shaft portions 342 and 342 are rotatably supported by the pair of first side plates 12 and 12. A pair of male screw portions 342A and 342A are formed at the ends of the pair of shaft portions 342 and 342 protruding from the pair of first side plates 12 and 12, respectively.

一対の第一制動部材３６・３６は、一対の第一回動ボルト３４・３４と第一取付ブラケット１０との間に制動力を発生させることにより第二取付ブラケット２０が連結ブラケット３０に対して一対の第一回動ボルト３４・３４の軸回りに回動することを規制する。   The pair of first braking members 36, 36 generates a braking force between the pair of first rotating bolts 34, 34 and the first mounting bracket 10, so that the second mounting bracket 20 is applied to the connection bracket 30. The rotation of the pair of first rotation bolts 34 and 34 around the axis is restricted.

ここで、「第一回動ボルト３４の軸回り」とは、第一回動ボルト３４を軸方向から見たときに、第一回動ボルト３４の軸心を中心にした円周方向を指す。   Here, “around the axis of the first rotation bolt 34” refers to a circumferential direction around the axis of the first rotation bolt 34 when the first rotation bolt 34 is viewed from the axial direction. .

なお、一対の第一制動部材３６・３６の構造は略同一であるため、以下の説明では、一方の制動部材３６を中心に説明し、他方の制動部材３６については必要な場合にのみ説明する。   In addition, since the structure of a pair of 1st braking members 36 and 36 is substantially the same, in the following description, it demonstrates focusing on one braking member 36, and demonstrates only the other braking member 36 only when needed. .

第一制動部材３６は、第一波形座金３６１と、第一ナット３６２と、ワッシャ３６３〜３６７と、を備える。   The first braking member 36 includes a first corrugated washer 361, a first nut 362, and washers 363 to 367.

第一波形座金３６１は、第一回動ボルト３４の軸方向に付勢力を付与する。第一波形座金３６１は、第一ナット３６２と第一側板１２との間に配置される。第一波形座金３６１は、第一回動ボルト３４の軸回りに回動可能に第一回動ボルト３４に嵌装される。   The first corrugated washer 361 applies an urging force in the axial direction of the first rotating bolt 34. The first corrugated washer 361 is disposed between the first nut 362 and the first side plate 12. The first corrugated washer 361 is fitted to the first rotating bolt 34 so as to be rotatable about the axis of the first rotating bolt 34.

第一ナット３６２は、第一波形座金３６１の付勢力を調整する。第一ナット３６２は、第一回動ボルト３４の雄ねじ部３４２Ａに螺挿される。つまり、第一ナット３６２が締緩されることにより、第一波形座金３６１の付勢力が任意に設定される。第一ナット３６２と第一波形座金３６１との間には、ワッシャ３６３が配置されるとともに、第一波形座金３６１と第一側板１２との間には、ワッシャ３６４が配置される。   The first nut 362 adjusts the urging force of the first corrugated washer 361. The first nut 362 is screwed into the male thread portion 342A of the first rotation bolt 34. That is, when the first nut 362 is tightened or loosened, the urging force of the first corrugated washer 361 is arbitrarily set. A washer 363 is disposed between the first nut 362 and the first corrugated washer 361, and a washer 364 is disposed between the first corrugated washer 361 and the first side plate 12.

ワッシャ３６３は、第一回動ボルト３４の軸回りに回動不可能に第一回動ボルト３４に嵌装される。   The washer 363 is fitted to the first rotation bolt 34 so that it cannot rotate about the axis of the first rotation bolt 34.

ワッシャ３６４は、第一回動ボルト３４の軸回りに回動不可能に第一回動ボルト３４に嵌装される。ワッシャ３６４には、第一波形座金３６１の付勢力が付与される。ワッシャ３６４の付勢方向は、第一回動ボルト３４の軸方向において第一側板１２側方向である。ワッシャ３６４と第一側板１２との間には、ワッシャ３６５が配置される。   The washer 364 is fitted to the first rotation bolt 34 so as not to rotate about the axis of the first rotation bolt 34. The washer 364 is applied with the biasing force of the first corrugated washer 361. The urging direction of the washer 364 is the first side plate 12 side direction in the axial direction of the first rotating bolt 34. A washer 365 is disposed between the washer 364 and the first side plate 12.

ワッシャ３６５は係止片３６５Ａを有し、第一回動ボルト３４に嵌装される。第一回動ボルト３４に嵌装されたワッシャ３６５は係止片３６５Ａによって第一側板１２の係止溝１２１に係止されるため、ワッシャ３６５および第一取付ブラケット１０は一体的に第一回動ボルト３４の軸回りに回動する。ワッシャ３６５とワッシャ３６４との間には、第一波形座金３６１の付勢力によって摩擦力が発生する。つまり、この摩擦力は連結ブラケット３０が第一取付ブラケット１０に対して一対の第一回動ボルト３４・３４の軸回りに回動することを規制する制動力となる。第一側板１２と短側板３３との間には、ワッシャ３６６が配置される。   The washer 365 has a locking piece 365 </ b> A and is fitted to the first rotating bolt 34. Since the washer 365 fitted to the first rotating bolt 34 is locked in the locking groove 121 of the first side plate 12 by the locking piece 365A, the washer 365 and the first mounting bracket 10 are integrally formed in the first time. It rotates around the axis of the dynamic bolt 34. A frictional force is generated between the washer 365 and the washer 364 by the urging force of the first corrugated washer 361. That is, this frictional force becomes a braking force that restricts the connection bracket 30 from rotating about the axis of the pair of first rotation bolts 34 and 34 with respect to the first mounting bracket 10. A washer 366 is disposed between the first side plate 12 and the short side plate 33.

ワッシャ３６６は係止片３６６Ａを有し、第一回動ボルト３４に嵌装される。第一回動ボルト３４に嵌装されたワッシャ３６６は係止片３６６Ａによって第一側板１２の係止孔１２３に係止されるので、ワッシャ３６６および第一取付ブラケット１０は一体的に第一回動ボルト３４の軸回りに回動する。ワッシャ３６６と短側板３３との間には、ワッシャ３６７が配置される。   The washer 366 has a locking piece 366 </ b> A and is fitted to the first rotation bolt 34. Since the washer 366 fitted to the first rotating bolt 34 is locked in the locking hole 123 of the first side plate 12 by the locking piece 366A, the washer 366 and the first mounting bracket 10 are integrated together in the first time. It rotates around the axis of the dynamic bolt 34. A washer 367 is disposed between the washer 366 and the short side plate 33.

ワッシャ３６７は、第一回動ボルト３４の軸回りに回動不可能に第一回動ボルト３４に嵌装される。ワッシャ３６７とワッシャ３６６との間には、第一波形座金３６１の付勢力によって摩擦力が発生する。つまり、この摩擦力は連結ブラケット３０が第二取付ブラケット２０に対して一対の第一回動ボルト３４・３４の軸回りに回動することを規制する制動力となる。   The washer 367 is fitted to the first rotation bolt 34 so as not to rotate about the axis of the first rotation bolt 34. A frictional force is generated between the washer 367 and the washer 366 by the urging force of the first corrugated washer 361. That is, this frictional force becomes a braking force that restricts the connection bracket 30 from rotating about the axis of the pair of first rotation bolts 34 and 34 with respect to the second mounting bracket 20.

なお、本実施例に係る一対の第一回動ボルト３４・３４は、別々に構成された二本のボルトを組み合わせて構成されるものであるが、本発明に係る第一回動軸部材は、一本の軸部材で構成してもよい。
また、本発明に係る第一付勢部材は、本実施例に係る一対の第一波形座金３６１・３６１に限定されず、例えばばね座金等であってもよい。 In addition, although a pair of 1st rotation bolt 34 * 34 which concerns on a present Example is comprised combining two bolts comprised separately, the 1st rotation shaft member which concerns on this invention is comprised. , You may comprise with one shaft member.
Further, the first urging member according to the present invention is not limited to the pair of first corrugated washers 361 and 361 according to the present embodiment, and may be, for example, a spring washer or the like.

図８および図９に示すように、一対の第二回動ボルト３５・３５は、第二取付ブラケット２０に回動可能に軸支される。一対の第二回動ボルト３５・３５は、一対の第一回動ボルト３４・３４に直交する。一対の第二回動ボルト３５・３５は、いずれも頭部３５１と、頭部３５１から延設される軸部３５２と、を有する。一対の第二回動ボルト３５・３５の一対の軸部３５２・３５２は、それぞれ連結ブラケット３０の一対の長側板３２・３２の貫通孔３２１・３２１、および第二取付ブラケット２０の一対の第二側板２２・２２の貫通孔２２２・２２２に貫装される。一対の軸部３５２・３５２は、一対の第二側板２２・２２に回動可能に軸支される。一対の第二側板２２・２２から突出する一対の軸部３５２・３５２の端部には、一対の雄ねじ部３５２Ａ・３５２Ａが形成される。   As shown in FIGS. 8 and 9, the pair of second rotating bolts 35, 35 are pivotally supported by the second mounting bracket 20 so as to be rotatable. The pair of second rotation bolts 35 and 35 are orthogonal to the pair of first rotation bolts 34 and 34. Each of the pair of second rotating bolts 35 and 35 includes a head 351 and a shaft portion 352 extending from the head 351. The pair of shaft portions 352 and 352 of the pair of second rotating bolts 35 and 35 are respectively connected to the through holes 321 and 321 of the pair of long side plates 32 and 32 of the connection bracket 30 and the pair of second portions of the second mounting bracket 20. The through holes 222 and 222 of the side plates 22 and 22 are inserted. The pair of shaft portions 352 and 352 are pivotally supported by the pair of second side plates 22 and 22 so as to be rotatable. A pair of male screw portions 352A and 352A are formed at the ends of the pair of shaft portions 352 and 352 protruding from the pair of second side plates 22 and 22, respectively.

一対の第二制動部材３７・３７は、一対の第二回動ボルト３５・３５と第二取付ブラケット２０との間に制動力を発生させることにより第二取付ブラケット２０が連結ブラケット３０に対して一対の第二回動ボルト３５・３５の軸回りに回動することを規制する。   The pair of second braking members 37, 37 generates a braking force between the pair of second rotating bolts 35, 35 and the second mounting bracket 20, so that the second mounting bracket 20 acts on the connection bracket 30. The rotation of the pair of second rotation bolts 35 and 35 around the axis is restricted.

ここで、「第二回動ボルト３５の軸回り」とは、第二回動ボルト３５を軸方向から見たときに、第二回動ボルト３５の軸心を中心にした円周方向を指す。   Here, “around the axis of the second rotating bolt 35” refers to a circumferential direction around the axis of the second rotating bolt 35 when the second rotating bolt 35 is viewed from the axial direction. .

なお、一対の第二制動部材３７・３７の構造は略同一であるため、以下の説明では、一方の制動部材３７を中心に説明し、他方の制動部材３７については必要な場合にのみ説明する。   In addition, since the structure of a pair of 2nd braking members 37 and 37 is substantially the same, in the following description, it demonstrates focusing on one braking member 37, and demonstrates only the other braking member 37 only when needed. .

第二制動部材３７は、第二波形座金３７１と、第二ナット３７２と、ワッシャ３６３〜３６７と、を備える。   The second braking member 37 includes a second corrugated washer 371, a second nut 372, and washers 363 to 367.

第二波形座金３７１は、第二回動ボルト３５の軸方向に付勢力を付与する。第二波形座金３７１は、第二ナット３７２と第二側板２２との間に配置される。第二波形座金３７１は、第二回動ボルト３５の軸回りに回動可能に第二回動ボルト３５に嵌装される。   The second corrugated washer 371 applies an urging force in the axial direction of the second rotating bolt 35. The second corrugated washer 371 is disposed between the second nut 372 and the second side plate 22. The second corrugated washer 371 is fitted to the second rotating bolt 35 so as to be rotatable around the axis of the second rotating bolt 35.

第二ナット３７２は、第二波形座金３７１の付勢力を調整する。第二ナット３７２は、第二回動ボルト３５の雄ねじ部３５２Ａに螺挿される。つまり、第二ナット３７２が締緩されることにより、第二波形座金３７１の付勢力が任意に設定される。第二ナット３７２と第二波形座金３７１との間には、ワッシャ３７３が配置されるとともに、第二波形座金３７１と第二側板２２との間には、ワッシャ３７４が配置される。   The second nut 372 adjusts the urging force of the second corrugated washer 371. The second nut 372 is screwed into the male thread portion 352 </ b> A of the second rotation bolt 35. That is, the biasing force of the second corrugated washer 371 is arbitrarily set by tightening or loosening the second nut 372. A washer 373 is disposed between the second nut 372 and the second corrugated washer 371, and a washer 374 is disposed between the second corrugated washer 371 and the second side plate 22.

ワッシャ３７３は、第二回動ボルト３５の軸回りに回動不可能に第二回動ボルト３５に嵌装される。   The washer 373 is fitted to the second rotation bolt 35 so that it cannot rotate about the axis of the second rotation bolt 35.

ワッシャ３７４は、第二回動ボルト３５の軸回りに回動不可能に第二回動ボルト３５に嵌装される。ワッシャ３７４には、第二波形座金３７１の付勢力が付与される。ワッシャ３７４の付勢方向は、第二回動ボルト３５の軸方向において第二側板２２側方向である。ワッシャ３７４と第二側板２２との間には、ワッシャ３７５が配置される。   The washer 374 is fitted to the second rotation bolt 35 so as not to rotate about the axis of the second rotation bolt 35. The washer 374 is applied with the urging force of the second corrugated washer 371. The urging direction of the washer 374 is the second side plate 22 side direction in the axial direction of the second rotating bolt 35. A washer 375 is disposed between the washer 374 and the second side plate 22.

ワッシャ３７５は、第二側板２２の係止溝２２１に係止する係止片３７５Ａを有し、第二回動ボルト３５に嵌装される。
第二回動ボルト３５に嵌装されたワッシャ３７５は係止片３７５Ａによって第二側板２２の係止溝２２１に係止されるため、ワッシャ３７５および第二取付ブラケット２０は一体的に第二回動ボルト３５の軸回りに回動する。ワッシャ３７５とワッシャ３７４との間には、第二波形座金３７１の付勢力によって摩擦力が発生する。つまり、この摩擦力は連結ブラケット３０が第二取付ブラケット２０に対して一対の第二回動ボルト３５・３５の軸回りに回動することを規制する制動力となる。第二側板２２と長側板３２との間には、ワッシャ３７６が配置される。 The washer 375 has a locking piece 375 </ b> A that is locked in the locking groove 221 of the second side plate 22, and is fitted to the second rotating bolt 35.
Since the washer 375 fitted to the second rotating bolt 35 is locked in the locking groove 221 of the second side plate 22 by the locking piece 375A, the washer 375 and the second mounting bracket 20 are integrally formed in the second time. It rotates around the axis of the dynamic bolt 35. A frictional force is generated between the washer 375 and the washer 374 by the biasing force of the second corrugated washer 371. That is, this frictional force is a braking force that restricts the connection bracket 30 from rotating about the axis of the pair of second rotation bolts 35 and 35 with respect to the second mounting bracket 20. A washer 376 is disposed between the second side plate 22 and the long side plate 32.

ワッシャ３７６は、第二側板２２の係止孔２２３に係止する係止片３７６Ａを有し、第二回動ボルト３５に嵌装される。
第二回動ボルト３５に嵌装されたワッシャ３７６は係止片３７６Ａによって第二側板２２の係止孔２２３に係止されるので、ワッシャ３７６および第二取付ブラケット２０は一体的に第二回動ボルト３５の軸回りに回動する。ワッシャ３７６と長側板３２との間には、ワッシャ３７７が配置される。 The washer 376 has a locking piece 376 </ b> A that locks in the locking hole 223 of the second side plate 22, and is fitted to the second rotating bolt 35.
Since the washer 376 fitted to the second rotating bolt 35 is locked in the locking hole 223 of the second side plate 22 by the locking piece 376A, the washer 376 and the second mounting bracket 20 are integrally formed in the second time. It rotates around the axis of the dynamic bolt 35. A washer 377 is disposed between the washer 376 and the long side plate 32.

ワッシャ３７７は、第二回動ボルト３５の軸回りに回動不可能に第二回動ボルト３５に嵌装される。ワッシャ３７７とワッシャ３７６との間には、第二波形座金３７１の付勢力によって摩擦力が発生する。つまり、この摩擦力は連結ブラケット３０が第二取付ブラケット２０に対して一対の第二回動ボルト３５・３５の軸回りに回動することを規制する制動力となる。   The washer 377 is fitted to the second rotation bolt 35 so that it cannot rotate about the axis of the second rotation bolt 35. A frictional force is generated between the washer 377 and the washer 376 by the urging force of the second corrugated washer 371. That is, this frictional force is a braking force that restricts the connection bracket 30 from rotating about the axis of the pair of second rotation bolts 35 and 35 with respect to the second mounting bracket 20.

なお、本実施例に係る一対の第二回動ボルト３５・３５は、別々に構成された二本のボルトを組み合わせて構成されるものであるが、本発明に係る第二回動軸部材は、一本の軸部材で構成してもよい。
また、本発明に係る第二付勢部材は、本実施例に係る一対の第二波形座金３７１・３７１に限定されず、例えばばね座金等であってもよい。 In addition, although a pair of 2nd rotation bolt 35 * 35 which concerns on a present Example is comprised combining two bolts comprised separately, the 2nd rotation shaft member which concerns on this invention is comprised. , You may comprise with one shaft member.
The second urging member according to the present invention is not limited to the pair of second corrugated washers 371 and 371 according to the present embodiment, and may be, for example, a spring washer or the like.

このように構成される自由継手１００では、図１０および図１１に示すように第一取付ブラケット１０は、一対の第一回動ボルト３４・３４の軸回り（本実施例では水平方向）に回動するとともに（図１０参照）、第二取付ブラケット２０は、一対の第二回動ボルト３５・３５の軸回り（本実施例では鉛直方向）に回動する（図１１参照）。   In the free joint 100 configured as described above, as shown in FIGS. 10 and 11, the first mounting bracket 10 is rotated about the axis of the pair of first rotating bolts 34 and 34 (in the horizontal direction in this embodiment). While moving (see FIG. 10), the second mounting bracket 20 rotates around the axis of the pair of second rotating bolts 35 and 35 (in the vertical direction in this embodiment) (see FIG. 11).

ここで、図１０に示すように、第一取付ブラケット１０が一対の第一回動ボルト３４・３４の軸回りに回動したとき、一対の第二回動ボルト３５・３５の軸部３５２・３５２の端部および一対の第二ナット３７２・３７２は、一対の切欠部１１２・１１２に収容される。これにより、第一取付ブラケット１０の回動角を大きくすることが可能となり、ひいては自在継手１の回動角を大きくすることが可能である。   Here, as shown in FIG. 10, when the first mounting bracket 10 is rotated around the axis of the pair of first rotating bolts 34, 34, the shaft portions 352 of the pair of second rotating bolts 35, 35 are arranged. The end of 352 and the pair of second nuts 372 and 372 are accommodated in the pair of notches 112 and 112. As a result, the rotation angle of the first mounting bracket 10 can be increased, and as a result, the rotation angle of the universal joint 1 can be increased.

なお、本実施例に係る一対の切欠部１１２・１１２は、第一基板１１の板面に垂直な方向から見たときに略「半円形状」となるものであるが、本発明に係る切欠部の形状はこれに限定されず、孔あるいは長孔（溝）であってもよい。
すなわち、本発明に係る切欠部の形状は、第二回動部材および第二制動部材が第一取付部に接触（干渉）することを防止することが可能な形状であればよい。 The pair of notches 112 and 112 according to the present embodiment is substantially “semicircular” when viewed from the direction perpendicular to the plate surface of the first substrate 11. The shape of the part is not limited to this, and may be a hole or a long hole (groove).
That is, the shape of the notch according to the present invention may be any shape that can prevent the second rotating member and the second braking member from contacting (interfering) with the first mounting portion.

以上のように本発明の一実施例に係る自由継手１００、第一連結対象物となるディスプレイ装置２を第二連結対象物となる取付部材３に回動自在に連結する自在継手１であって、ディスプレイ装置２に取り付けられる第一取付部材となる第一取付ブラケット１０と、取付部材３に取り付けられる第二取付部材となる第二取付ブラケット２０と、第一取付ブラケット１０と第二取付ブラケット２０とを回動可能に連結する連結部材となる連結ブラケット３０と、を備え、連結ブラケット３０は、第一取付ブラケット１０に回動可能に軸支される第一回動軸部材となる一対の第一回動ボルト３４・３４と、一対の第一回動ボルト３４・３４に直交するとともに、第二取付ブラケット２０に回動可能に軸支される第二回動軸部材となる一対の第二回動ボルト３５・３５と、一対の第一回動ボルト３４・３４と第一取付ブラケット１０との間に制動力を発生させることにより第一取付ブラケット１０が連結ブラケット３０に対して一対の第一回動ボルト３４・３４の軸回りに回動することを規制する一対の第一制動部材３６・３６と、一対の第二回動ボルト３５・３５と第二取付ブラケット２０との間に制動力を発生させることにより第二取付ブラケット２０が連結ブラケット３０に対して一対の第二回動ボルト３５・３５の軸回りに回動することを規制する一対の第二制動部材３７・３７と、を備えるものである。   As described above, the free joint 100 according to one embodiment of the present invention is a universal joint 1 that rotatably connects the display device 2 that is the first connection object to the mounting member 3 that is the second connection object. The first mounting bracket 10 serving as a first mounting member mounted on the display device 2, the second mounting bracket 20 serving as the second mounting member mounted on the mounting member 3, the first mounting bracket 10 and the second mounting bracket 20. And a connecting bracket 30 serving as a connecting member that is rotatably connected to each other, and the connecting bracket 30 is a pair of first rotating shaft members that are pivotally supported by the first mounting bracket 10. A pair of second rotation shafts 34 and 34 and a pair of second rotation shaft members that are orthogonal to the pair of first rotation bolts 34 and 34 and are pivotally supported by the second mounting bracket 20. Times By generating a braking force between the bolts 35, 35, the pair of first rotating bolts 34, 34, and the first mounting bracket 10, the first mounting bracket 10 is paired with the connection bracket 30. A braking force is applied between the pair of first braking members 36, 36 that restrict the rotation of the dynamic bolts 34, 34 around the axis, and the pair of second rotating bolts 35, 35 and the second mounting bracket 20. A pair of second braking members 37 and 37 for restricting the second mounting bracket 20 from rotating about the axis of the pair of second rotating bolts 35 and 35 with respect to the connecting bracket 30 by being generated. Is.

このような構成により、ディスプレイ装置２を取付部材３に対して回動可能に連結できるとともに、ディスプレイ装置２が取付部材３に対して回動することを規制可能であるため、姿勢保持可能な自在継手１をコンパクトに構成することが可能である。   With such a configuration, the display device 2 can be connected to the attachment member 3 so as to be rotatable, and the display device 2 can be restricted from rotating with respect to the attachment member 3. The joint 1 can be configured compactly.

そして、一対の第一制動部材３６・３６は、一対の第一回動ボルト３４・３４の軸方向に付勢力を付与する第一付勢部材となる一対の第一波形座金３６１・３６１と、一対の第一波形座金３６１・３６１の付勢力を調整する第一付勢力調整部材となる一対の第一ナット３６２・３６２と、を備え、一対の第二制動部材３７・３７は、一対の第二回動ボルト３５・３５の軸方向に付勢力を付与する第二付勢部材となる一対の第二波形座金３７１・３７１と、一対の第二波形座金３７１・３７１の付勢力を調整する第二付勢力調整部材となる一対の第二ナット３７２・３７２と、を備えるものである。   The pair of first braking members 36 and 36 are a pair of first corrugated washers 361 and 361 serving as a first biasing member that applies a biasing force in the axial direction of the pair of first rotating bolts 34 and 34. A pair of first nuts 362 and 362 serving as a first biasing force adjusting member that adjusts a biasing force of the pair of first corrugated washers 361 and 361, and the pair of second braking members 37 and 37 is a pair of first nuts A pair of second corrugated washers 371 and 371 serving as a second biasing member that imparts a biasing force in the axial direction of the two rotating bolts 35 and 35, and a pair of second corrugated washers 371 and 371 for adjusting the biasing force. And a pair of second nuts 372 and 372 serving as two urging force adjusting members.

このような構成により、ディスプレイ装置２の重量に応じて制動力を調整することが可能であるため、ディスプレイ装置２が重い場合でも制動力を大きくすることにより、姿勢保持が可能である。   With such a configuration, the braking force can be adjusted according to the weight of the display device 2, so that even when the display device 2 is heavy, the posture can be maintained by increasing the braking force.

また、第一付勢部材は、一対の第一回動ボルト３４・３４に嵌装される一対の第一波形座金３６１・３６１であり、第二付勢部材は、一対の第二回動ボルト３５・３５に嵌装される一対の第二波形座金３７１・３７１である。   The first urging member is a pair of first corrugated washers 361 and 361 fitted to the pair of first rotating bolts 34 and 34, and the second urging member is a pair of second rotating bolts. A pair of second corrugated washers 371 and 371 fitted to 35 and 35.

このような構成により、付勢部材を小さな部品である一対の第一波形座金３６１・３６１および一対の第二第二波形座金３７１・３７１で構成することが可能であるため、自在継手１をコンパクトに構成することが可能である。   With such a configuration, the urging member can be composed of a pair of first corrugated washers 361 and 361 and a pair of second corrugated washers 371 and 371, which are small parts. It is possible to configure.

さらに、第一取付ブラケット１０は、ディスプレイ装置２に取り付けられる第一取付部となる第一基板１１と、第一基板１１に所定の間隔Ｄ１を空けて設けられ、一対の第一回動ボルト３４・３４の両端部を回動可能に軸支する一対の第一軸支部となる第一側板１２・１２と、を有し、第二取付ブラケット２０は、取付部材３に取り付けられる第二取付部となる一対の第二基板２１・２１と、一対の第二基板２１・２１に所定の間隔Ｄ２を空けて設けられ、一対の第二回動ボルト３５・３５の両端部を回動可能に軸支する一対の第二軸支部となる第二側板２２・２２と、を有し、一対の第一側板１２・１２の間隔Ｄ１は、一対の第二側板２２・２２の間隔Ｄ２よりも大きく、第一基板１１には、第一取付ブラケット１０が一対の第一回動ボルト３４・３４の軸回りに回動したときに一対の第二回動ボルト３５・３５の軸端部を収容する一対の切欠部１１２・１１２が、第一基板１１に形成されるものである。   Furthermore, the first mounting bracket 10 is provided with a first substrate 11 serving as a first mounting portion to be mounted on the display device 2 and a predetermined distance D1 between the first substrate 11 and a pair of first rotating bolts 34. The first side plates 12 and 12 serving as a pair of first shaft support portions that pivotally support both end portions of 34, and the second mounting bracket 20 is a second mounting portion that is attached to the mounting member 3. The pair of second substrates 21 and 21 and the pair of second substrates 21 and 21 are provided with a predetermined distance D2, and both ends of the pair of second rotation bolts 35 and 35 are pivotable. A pair of second side plates 22 and 22 that serve as a pair of second shaft support portions, and a distance D1 between the pair of first side plates 12 and 12 is larger than a distance D2 between the pair of second side plates 22 and 22, A first mounting bracket 10 has a pair of first rotating bolts on the first substrate 11. A pair of cutout portions 112, 112 to accommodate the shaft end portions of the pair of second pivot bolt 35, 35 when pivoted about the axis 34, 34 is intended to be formed on the first substrate 11.

このような構成により、自在継手１のサイズを大きくすることなく、自在継手１の回動角を大きくすることが可能であるため、回動角が大きな自在継手１をコンパクトに構成することが可能である。   With such a configuration, it is possible to increase the rotation angle of the universal joint 1 without increasing the size of the universal joint 1, so that the universal joint 1 having a large rotation angle can be configured compactly. It is.

そして、一対の第一回動ボルト３４・３４の軸心と一対の第二回動ボルト３５・３５の軸心とは、同一平面内に配置されるものである。   The axis of the pair of first rotation bolts 34 and 34 and the axis of the pair of second rotation bolts 35 and 35 are arranged in the same plane.

このような構成により、一対の第一回動ボルト３４・３４と一対の第二回動ボルト３５・３５との軸間距離を詰めることが可能であるため、自在継手１をコンパクトに構成することが可能である。   With such a configuration, the distance between the axes of the pair of first rotation bolts 34 and 34 and the pair of second rotation bolts 35 and 35 can be reduced, so that the universal joint 1 is configured to be compact. Is possible.

また、連結ブラケット３０は、一対の第一回動ボルト３４・３４および一対の第二回動ボルト３５・３５を支持する支持部材となる、基板３１、一対の長側板３２・３２および一対の短側板３３・３３を合わせたものを備えるものである。   The connecting bracket 30 is a support member that supports the pair of first rotating bolts 34 and 34 and the pair of second rotating bolts 35 and 35, and includes a substrate 31, a pair of long side plates 32 and 32, and a pair of short plates. A combination of side plates 33 and 33 is provided.

このような構成により、連結ブラケット３０が一対の第一回動ボルト３４・３４および一対の第二回動ボルト３５・３５を支持する機能を有することにより、連結ブラケット３０とは別に一対の第一回動ボルト３４・３４および一対の第二回動ボルト３５・３５を支持する専用の部材を設ける必要がないため、自在継手１をコンパクトに構成することが可能である。   With such a configuration, the connection bracket 30 has a function of supporting the pair of first rotation bolts 34 and 34 and the pair of second rotation bolts 35 and 35, so that the pair of first rotation bolts 35 and 35 is separated from the connection bracket 30. Since it is not necessary to provide a dedicated member for supporting the rotating bolts 34 and 34 and the pair of second rotating bolts 35 and 35, the universal joint 1 can be configured compactly.

さらに、支持部材の形状は一端が開口されるとともに他端が閉塞された筒状であり、第一回動軸部材は一対の第一軸片となる一対の第一回動ボルト３４・３４からなり、第二回動軸部材は一対の第二軸片となる一対の第二回動ボルト３５・３５からなり、一対の第一回動ボルト３４・３４および一対の第二回動ボルト３５・３５は支持部材の外周面から突出し、支持部材の筒状の周面に設けられた一対の第一回動ボルト３４・３４の軸線は互いに一直線となり、支持部材の筒状の周面に設けられた一対の第二回動ボルト３５・３５の軸線は互いに一直線となるものである。   Further, the shape of the support member is a cylindrical shape with one end opened and the other end closed, and the first rotation shaft member is formed from a pair of first rotation bolts 34 and 34 that form a pair of first shaft pieces. The second rotation shaft member is composed of a pair of second rotation bolts 35 and 35 that form a pair of second shaft pieces, and the pair of first rotation bolts 34 and 34 and the pair of second rotation bolts 35 and 35. 35 protrudes from the outer peripheral surface of the support member, and the axes of the pair of first rotating bolts 34 and 34 provided on the cylindrical peripheral surface of the support member are aligned with each other, and are provided on the cylindrical peripheral surface of the support member. The axes of the pair of second rotating bolts 35 and 35 are aligned with each other.

このような構成により、支持部材を筒状部材で構成できるため、支持部材の形状を簡素化することが可能であるとともに、筒状部材の他端が閉塞されているため、支持部材の強度を向上することが可能である。   With such a configuration, since the support member can be configured by a cylindrical member, the shape of the support member can be simplified, and the other end of the cylindrical member is closed, so that the strength of the support member can be increased. It is possible to improve.

そして、支持部材は、略四角形の中央板となる基板３１および基板３１の四片からそれぞれ延設される四つの端板となる一対の長側板３２・３２および一対の短側板３３・３３を有する略十字形の金属板を出発材とし、金属板の四つの一対の長側板３２・３２および一対の短側板３３・３３を基板３１との境界部分で基板３１に対して略垂直に折り曲げることにより成形されるものである。   The support member includes a substrate 31 serving as a substantially square central plate, a pair of long side plates 32 and 32 and a pair of short side plates 33 and 33 serving as four end plates respectively extending from four pieces of the substrate 31. By using a substantially cross-shaped metal plate as a starting material, and bending a pair of long side plates 32 and 32 and a pair of short side plates 33 and 33 of the metal plate substantially perpendicular to the substrate 31 at the boundary with the substrate 31 It is to be molded.

このような構成により、支持部材を折り曲げて成形できるため、支持部材を簡単に製造可能である。   With such a configuration, since the support member can be bent and molded, the support member can be easily manufactured.

また、支持部材の形状は両端が開口された筒状であり、第一回動軸部材は一対の第一軸片となる一対の第一回動ボルト３４・３４からなり、第二回動軸部材は一対の第二軸片となる一対の第二回動ボルト３５・３５からなり、一対の第一回動ボルト３４・３４および一対の第二回動ボルト３５・３５は支持部材の外周面から突出し、支持部材の筒状の周面に設けられた一対の第一回動ボルト３４・３４の軸線は互いに一直線となり、支持部材の筒状の周面に設けられた一対の第二回動ボルト３５・３５の軸線は互いに一直線となるものである。   The support member has a cylindrical shape with both ends opened, and the first rotation shaft member includes a pair of first rotation bolts 34 and 34 that form a pair of first shaft pieces. The member includes a pair of second rotating bolts 35 and 35 that form a pair of second shaft pieces, and the pair of first rotating bolts 34 and 34 and the pair of second rotating bolts 35 and 35 are outer peripheral surfaces of the support member. The axis of the pair of first rotating bolts 34 and 34 provided on the cylindrical peripheral surface of the support member is aligned with each other, and a pair of second rotary provided on the cylindrical peripheral surface of the support member The axes of the bolts 35 and 35 are aligned with each other.

このような構成により、支持部材を筒状部材で構成できるため、支持部材の形状を簡素化することが可能である。   With such a configuration, since the support member can be configured by a cylindrical member, the shape of the support member can be simplified.

なお、本実施例に係る第一取付ブラケット１０、第二取付ブラケット２０、および連結ブラケット３０は、いずれも金属材料により構成されるものであるが、本発明に係る第一取付部材、第二取付部材、および連結部材を構成する材料は、金属材料に限定されず、例えば樹脂材料、木材、セラミック等でもよい。   Note that the first mounting bracket 10, the second mounting bracket 20, and the connection bracket 30 according to the present embodiment are all made of a metal material, but the first mounting member and the second mounting according to the present invention. The material constituting the member and the connecting member is not limited to a metal material, and may be, for example, a resin material, wood, ceramic, or the like.

次に、本発明の第二実施例に係る自由継手２００について、図１２により説明する。
なお、図１２において、第一実施例と同一符号の部材は第一実施例と略同一構成であるため詳細な説明は省略する。 Next, a free joint 200 according to a second embodiment of the present invention will be described with reference to FIG.
In FIG. 12, members having the same reference numerals as those in the first embodiment have substantially the same configurations as those in the first embodiment, and thus detailed description thereof is omitted.

図１２に示すように、第二実施例に係る自由継手２００は、第二回動軸部材３８と、第二回動軸部材３８に巻回される捩りばね３９と、を備える。   As shown in FIG. 12, the free joint 200 according to the second embodiment includes a second rotating shaft member 38 and a torsion spring 39 wound around the second rotating shaft member 38.

第二回動軸部材３８は、第二取付ブラケット２０に回動可能に軸支される。第二回動軸部材３８は、一対の第一回動ボルト３４・３４に直交する。
第二回動軸部材３８は、軸部３８１と、一対のボルト部３８２・３８２と、を有する。 The second rotation shaft member 38 is pivotally supported by the second mounting bracket 20 so as to be rotatable. The second rotation shaft member 38 is orthogonal to the pair of first rotation bolts 34 and 34.
The second rotation shaft member 38 includes a shaft portion 381 and a pair of bolt portions 382 and 382.

軸部３８１は、連結ブラケット３０の一対の長側板３２・３２の間に架け渡される。軸部３８１の断面形状は、軸方向から見たときに円形状である。
一対のボルト部３８２・３８２は、それぞれ連結ブラケット３０の一対の長側板３２・３２の貫通孔３２１・３２１、および第二取付ブラケット２０の一対の第二側板２２・２２の貫通孔２２２・２２２に貫装される。
一対のボルト部３８２・３８２には、一対の第二制動部材３７・３７を構成する第二波形座金３７１、第二ナット３７２、およびワッシャ３７３〜３７７がそれぞれ設けられる。
一対のボルト部３８２・３８２の端部は、第二取付ブラケット２０の一対の第二側板２２・２２の貫通孔２２２・２２２から突出する。
一対のボルト部３８２・３８２の端部には、一対の雄ねじ部３８２Ａ・３８２Ａがそれぞれ形成される。一対の雄ねじ部３８２Ａ・３８２Ａには、一対の第二ナット３７２・３７２がそれぞれ螺挿される。 The shaft portion 381 is bridged between the pair of long side plates 32 and 32 of the connection bracket 30. The cross-sectional shape of the shaft portion 381 is circular when viewed from the axial direction.
The pair of bolt portions 382 and 382 are respectively inserted into the through holes 321 and 321 of the pair of long side plates 32 and 32 of the connection bracket 30 and the through holes 222 and 222 of the pair of second side plates 22 and 22 of the second mounting bracket 20. Intruded.
The pair of bolt portions 382 and 382 are provided with a second corrugated washer 371, a second nut 372, and washers 373 to 377 constituting the pair of second braking members 37 and 37, respectively.
The ends of the pair of bolt portions 382 and 382 protrude from the through holes 222 and 222 of the pair of second side plates 22 and 22 of the second mounting bracket 20.
A pair of male screw portions 382A and 382A are formed at the ends of the pair of bolt portions 382 and 382, respectively. A pair of second nuts 372 and 372 are screwed into the pair of male screw portions 382A and 382A, respectively.

捩りばね３９は、第二回動軸部材３８の軸回りに付勢力を付与する。捩りばね３９は、第二回動軸部材３８の軸部３８１に巻回される。捩りばね３９の一端部３９１は、連結ブラケット３０の基板３１の板面に係止される。捩りばね３９の他端部３９２は、略「Ｌ」字形に折り曲げられて第二取付ブラケット２０の第二基板２１の取付面２１１に係止される。第二取付ブラケット２０の第二基板２１には、捩りばね３９の他端部３９２が差し込まれる差込孔２１１Ａが開口される。   The torsion spring 39 applies a biasing force around the axis of the second rotation shaft member 38. The torsion spring 39 is wound around the shaft portion 381 of the second rotation shaft member 38. One end 391 of the torsion spring 39 is locked to the plate surface of the substrate 31 of the connection bracket 30. The other end 392 of the torsion spring 39 is bent into a substantially “L” shape and is locked to the mounting surface 211 of the second substrate 21 of the second mounting bracket 20. An insertion hole 211 </ b> A into which the other end 392 of the torsion spring 39 is inserted is opened in the second substrate 21 of the second mounting bracket 20.

このような構成により、第二取付ブラケット２０が連結ブラケット３０に対して第二回動軸部材３８の軸回りに回動すると、第二取付ブラケット２０が回動する方向とは反対方向の捩りばね３９の付勢力が第二取付ブラケット２０に作用して、第二取付ブラケット２０の回動が規制される。   With such a configuration, when the second mounting bracket 20 rotates around the axis of the second rotation shaft member 38 with respect to the connection bracket 30, the torsion spring in the direction opposite to the direction in which the second mounting bracket 20 rotates. The urging force of 39 acts on the second mounting bracket 20 to restrict the rotation of the second mounting bracket 20.

ここで、本実施例に係る連結ブラケット３０の一対の長側板３２・３２のうち、一方の長側板３２は、「基板３１、他方の長側板３２、および一対の短側板３３・３３が連なって構成される部材」（以下「連結ブラケット本体」という。）とは、別部材とされる。つまり、一方の長側板３２は、前記連結ブラケット本体に対して、着脱可能とされる。
一方の長側板３２の基板３１側の端部は、基板３１の板面に沿って折り曲げられて他方の長側板３２の方向に延出される。つまり、一方の長側板３２の断面形状は、長側板３２の長手方向から見たときに略「Ｌ」字形である。一方の長側板３２と基板３１とは、対向する互いの板面同士を合わせた状態でネジ等により固定される。 Here, of the pair of long side plates 32 and 32 of the connection bracket 30 according to the present embodiment, one long side plate 32 is “the substrate 31, the other long side plate 32, and the pair of short side plates 33 and 33 are connected. The “member to be configured” (hereinafter referred to as “connecting bracket body”) is a separate member. That is, one long side plate 32 can be attached to and detached from the connecting bracket body.
The end of one long side plate 32 on the substrate 31 side is bent along the plate surface of the substrate 31 and extends in the direction of the other long side plate 32. That is, the cross-sectional shape of one long side plate 32 is substantially “L” shape when viewed from the longitudinal direction of the long side plate 32. One long side plate 32 and the substrate 31 are fixed with screws or the like in a state where the opposing plate surfaces are aligned.

このような構成により、前記連結ブラケット本体に第二回動軸部材３８を組み付けてから、これに一方の長側板３２を組み付ける（あるいは、一方の長側板３２に第二回動軸部材３８を組み付けてから、これに前記連結ブラケット本体を組み付ける）ことができるため、連結ブラケット３０に第二回動軸部材３８を容易に組み付けることが可能である。   With such a configuration, the second rotation shaft member 38 is assembled to the connecting bracket body, and then one long side plate 32 is assembled to the second rotation shaft member 38 (or the second rotation shaft member 38 is assembled to the one long side plate 32. Since the connecting bracket body can be assembled to the connecting bracket 30, the second rotating shaft member 38 can be easily assembled to the connecting bracket 30.

以上のように本発明の第二の実施例に係る自由継手２００は、第二回動軸部材３８に巻回される捩りばね３９を備え、捩りばね３９の一端部３９１は、連結ブラケット３０に係止されるとともに、捩りばね３９の他端部３９２は、第二取付ブラケット２０に係止され、捩りばね３９は、第二取付ブラケット２０が連結ブラケット３０に対して第二回動軸部材３８の軸回りに回動することを規制するものである。
このような構成により、第二取付ブラケット２０に取り付けられる連結対象物の重量が大きい場合であっても連結対象物の回動を規制可能であるため、連結対象物を所望の姿勢で確実に支持できる。 As described above, the free joint 200 according to the second embodiment of the present invention includes the torsion spring 39 wound around the second rotating shaft member 38, and one end 391 of the torsion spring 39 is connected to the connection bracket 30. While being locked, the other end 392 of the torsion spring 39 is locked to the second mounting bracket 20, and the second mounting bracket 20 is connected to the second rotation shaft member 38 with respect to the connection bracket 30. The rotation about the axis is restricted.
With such a configuration, even when the weight of the connection target attached to the second mounting bracket 20 is large, the rotation of the connection target can be restricted, so that the connection target is reliably supported in a desired posture. it can.

なお、本実施例においては、捩りばね３９を第二回動軸部材に巻回するように構成したが、本発明はこれに限定されない。すなわち、第一回動軸部材に巻回され、一端部が連結部材に係止され、かつ他端部が第一取付部材に係止される捩りばねを具備する構成としてもよい。   In the present embodiment, the torsion spring 39 is wound around the second rotating shaft member, but the present invention is not limited to this. That is, it is good also as a structure which comprises the torsion spring wound by the 1st rotating shaft member, one end part being latched by a connection member, and the other end part latching by a 1st attachment member.

次に、本発明の第三実施例に係る自由継手３００について、図１３により説明する。
なお、図１３において、第一実施例と同一符号の部材は第一実施例と略同一構成であるため詳細な説明は省略する。 Next, a free joint 300 according to a third embodiment of the present invention will be described with reference to FIG.
In FIG. 13, members having the same reference numerals as those in the first embodiment have substantially the same configurations as those in the first embodiment, and thus detailed description thereof is omitted.

図１３に示すように、第三実施例に係る自由継手３００は、第三取付ブラケット４１と、第三回動ボルト４２と、第三制動部材４３と、を備える。   As shown in FIG. 13, the free joint 300 according to the third embodiment includes a third mounting bracket 41, a third rotating bolt 42, and a third braking member 43.

自由継手３００は図１に示す自由継手１００とは異なり、第三取付ブラケット４１が連結対象物（図１に示すディスプレイ装置２）に取り付けられる。
つまり、第一実施例に係る自由継手１００では、第一取付ブラケット１０が連結対象物（図１に示すディスプレイ装置２）に直接取り付けられているのに対し、本実施例に係る自由継手３００では、第一取付ブラケット１０が第三取付ブラケット４１を介して連結対象物に取り付けられる。 The free joint 300 is different from the free joint 100 shown in FIG. 1 in that a third mounting bracket 41 is attached to a connection object (the display device 2 shown in FIG. 1).
That is, in the free joint 100 according to the first embodiment, the first mounting bracket 10 is directly attached to the connection object (the display device 2 shown in FIG. 1), whereas in the free joint 300 according to the present embodiment. The first mounting bracket 10 is attached to the connection object via the third mounting bracket 41.

第三取付ブラケット４１は、略四角形状の板面を有する板状部材である。第三取付ブラケット４１のディスプレイ装置２（図１参照）に対向する側の面は、ディスプレイ装置２に取り付けられる取付面４１１とされる。
なお、第三取付ブラケット４１の板面の形状は、略四角形状に限定するものではなく、連結対象物に取付可能な形状であればよい。 The third mounting bracket 41 is a plate-like member having a substantially square plate surface. The surface of the third mounting bracket 41 facing the display device 2 (see FIG. 1) is a mounting surface 411 that is mounted on the display device 2.
Note that the shape of the plate surface of the third mounting bracket 41 is not limited to a substantially square shape, and may be any shape that can be attached to the connection object.

第三回動ボルト４２は、本発明に係る第三回動軸部材の実施の一形態である。第三回動ボルト４２は、第三取付ブラケット４１と第一取付ブラケット１０との間に配置される。第三回動ボルト４２は、第一回動ボルト３４に直交する。
第三回動ボルト４２は、頭部４２１と、一対の軸部４２２・４２２と、を有する。 The third rotating bolt 42 is an embodiment of the third rotating shaft member according to the present invention. The third rotation bolt 42 is disposed between the third mounting bracket 41 and the first mounting bracket 10. The third rotation bolt 42 is orthogonal to the first rotation bolt 34.
The third rotation bolt 42 has a head 421 and a pair of shaft portions 422 and 422.

一対の軸部４２２・４２２は、頭部４２１を挟んで第三取付ブラケット４１側と第一取付ブラケット１０側とにそれぞれ突出する。一対の軸部４２２・４２２の端部には、一対の雄ねじ部４２２Ａ・４２２Ａがそれぞれ形成される。   The pair of shaft portions 422 and 422 project to the third mounting bracket 41 side and the first mounting bracket 10 side with the head portion 421 interposed therebetween. A pair of male screw portions 422A and 422A are formed at the ends of the pair of shaft portions 422 and 422, respectively.

なお、以下の説明では一対の軸部４２２のうち頭部４２１を挟んで第三取付ブラケット４１側に突出する軸部４２２を「第三取付ブラケット４１側の軸部４２２」と称し、頭部４２１を挟んで第一取付ブラケット１０側に突出する軸部４２２を「第一取付ブラケット１０側の軸部４２２」と称する。   In the following description, of the pair of shaft portions 422, the shaft portion 422 that protrudes toward the third mounting bracket 41 with the head portion 421 interposed therebetween is referred to as a “shaft portion 422 on the third mounting bracket 41 side”. A shaft portion 422 that protrudes toward the first mounting bracket 10 with a pinch therebetween is referred to as a “shaft portion 422 on the first mounting bracket 10 side”.

第三取付ブラケット４１側の軸部４２２には、第三取付ブラケット４１が軸部４２２の軸心方向に移動可能に取り付けられる。本実施例では第三取付ブラケット４１は、第三回動ボルト４２の軸回りに回動不可能に第三取付ブラケット４１側の軸部４２２に嵌装される。
第一取付ブラケット１０側の軸部４２２には、第一取付ブラケット１０が回動可能に軸支される。 The third mounting bracket 41 is attached to the shaft portion 422 on the third mounting bracket 41 side so as to be movable in the axial direction of the shaft portion 422. In the present embodiment, the third mounting bracket 41 is fitted to the shaft portion 422 on the third mounting bracket 41 side so as not to rotate around the axis of the third rotating bolt 42.
The first mounting bracket 10 is rotatably supported on the shaft portion 422 on the first mounting bracket 10 side.

第三制動部材４３は、第三回動ボルト４２と第一取付ブラケット１０との間に制動力を発生させることにより第三取付ブラケット４１が連結ブラケット３０に対して第三回動ボルト４２の軸回りに回動することを規制する。   The third braking member 43 generates a braking force between the third rotating bolt 42 and the first mounting bracket 10, so that the third mounting bracket 41 is connected to the connection bracket 30 with the axis of the third rotating bolt 42. Regulates turning around.

ここで、「第三回動ボルト４２の軸回り」とは、第三回動ボルト４２を軸方向から見たときに、第三回動ボルト４２の軸心を中心にした円周方向を指す。   Here, “around the axis of the third rotation bolt 42” refers to a circumferential direction around the axis of the third rotation bolt 42 when the third rotation bolt 42 is viewed from the axial direction. .

第三制動部材４３は、一対の第三ナット４３１・４３１と、第三波形座金４３２と、ワッシャ４３３〜４３６と、を備える。   The third braking member 43 includes a pair of third nuts 431 and 431, a third corrugated washer 432, and washers 433 to 436.

一対の第三ナット４３１・４３１は、第三回動ボルト４２の一対の軸部４２２・４２２に形成された一対の雄ねじ部４２２Ａ・４２２Ａに螺挿される。第三取付ブラケット４１側の軸部４２２（雄ねじ部４２２Ａ）に螺挿された第三ナット４３１を締緩することにより、第三取付ブラケット４１を第三回動ボルト４２に対して着脱することが可能である。   The pair of third nuts 431 and 431 are screwed into a pair of male screw portions 422A and 422A formed on the pair of shaft portions 422 and 422 of the third rotating bolt 42, respectively. The third mounting bracket 41 can be attached to and detached from the third rotating bolt 42 by tightening or loosening the third nut 431 screwed into the shaft portion 422 (male thread portion 422A) on the third mounting bracket 41 side. Is possible.

第三波形座金４３２は、第三回動ボルト４２の軸方向に付勢力を付与する。第三波形座金４３２は、第一取付ブラケット１０側の軸部４２２（雄ねじ部４２２Ａ）に螺挿された第三ナット４３１と、第一取付ブラケット１０の第一基板１１との間に配置される。第三波形座金４３２は、第三回動ボルト４２の軸回りに回動可能に第一取付ブラケット１０側の軸部４２２に嵌装される。
第三波形座金４３２の付勢力は、第一取付ブラケット１０側の軸部４２２（雄ねじ部４２２Ａ）に螺挿された第三ナット４３１を締緩することにより任意に設定される。
第三波形座金４３２と第一取付ブラケット１０側の軸部４２２（雄ねじ部４２２Ａ）に螺挿された第三ナット４３１との間には、ワッシャ４３３が配置されるとともに、第三波形座金４３２と第一基板１１との間には、ワッシャ４３４が配置される。 The third corrugated washer 432 applies a biasing force in the axial direction of the third rotating bolt 42. The third corrugated washer 432 is disposed between the third nut 431 screwed into the shaft portion 422 (male screw portion 422A) on the first mounting bracket 10 side and the first substrate 11 of the first mounting bracket 10. . The third corrugated washer 432 is fitted to the shaft portion 422 on the first mounting bracket 10 side so as to be rotatable around the axis of the third rotation bolt 42.
The biasing force of the third corrugated washer 432 is arbitrarily set by tightening or loosening the third nut 431 screwed into the shaft portion 422 (male screw portion 422A) on the first mounting bracket 10 side.
A washer 433 is disposed between the third corrugated washer 432 and the third nut 431 screwed into the shaft portion 422 (male thread portion 422A) on the first mounting bracket 10 side, and the third corrugated washer 432 and A washer 434 is disposed between the first substrate 11 and the first substrate 11.

ワッシャ４３３は、第三回動ボルト４２の軸回りに回動不可能に第一取付ブラケット１０側の軸部４２２に嵌装される。   The washer 433 is fitted to the shaft portion 422 on the first mounting bracket 10 side so as not to rotate about the axis of the third rotation bolt 42.

ワッシャ４３４は、第三回動ボルト４２の軸回りに回動不可能に第一取付ブラケット１０側の軸部４２２に嵌装される。ワッシャ４３４には、第三波形座金４３２の付勢力が付与される。ワッシャ４３４の付勢方向は、第三回動ボルト４２の軸方向において第三取付ブラケット４１側方向である。ワッシャ４３４と第一基板１１との間には、ワッシャ４３５が配置される。   The washer 434 is fitted to the shaft portion 422 on the first mounting bracket 10 side so as not to rotate about the axis of the third rotation bolt 42. The washer 434 is applied with the urging force of the third corrugated washer 432. The urging direction of the washer 434 is the third mounting bracket 41 side direction in the axial direction of the third rotating bolt 42. A washer 435 is disposed between the washer 434 and the first substrate 11.

ワッシャ４３５は、係止片４３５Ａを有し、第一取付ブラケット１０側の軸部４２２に嵌装される。第一取付ブラケット１０側の軸部４２２に嵌装されたワッシャ４３５は係止片４３５Ａによって第一基板１１の係止孔１１２に係止されるため、ワッシャ４３５および第一取付ブラケット１０は一体的に第三回動ボルト４２の軸回りに回動する。ワッシャ４３５とワッシャ４３４との間には、第三波形座金４３２の付勢力によって摩擦力が発生する。つまり、この摩擦力は第三取付ブラケット４１が第一取付ブラケット１０に対して第三回動ボルト４２の軸回りに回動することを規制する制動力となる。第三回動ボルト４２の頭部４２１と第一基板１１との間には、ワッシャ４３６が配置される。   The washer 435 has a locking piece 435A and is fitted to the shaft portion 422 on the first mounting bracket 10 side. Since the washer 435 fitted to the shaft portion 422 on the first mounting bracket 10 side is locked to the locking hole 112 of the first substrate 11 by the locking piece 435A, the washer 435 and the first mounting bracket 10 are integrated. Then, it rotates about the axis of the third rotation bolt 42. A frictional force is generated between the washer 435 and the washer 434 by the urging force of the third corrugated washer 432. That is, this frictional force becomes a braking force that restricts the third mounting bracket 41 from rotating about the axis of the third rotation bolt 42 with respect to the first mounting bracket 10. A washer 436 is disposed between the head 421 of the third rotation bolt 42 and the first substrate 11.

ワッシャ４３６は、第三回動ボルト４２の軸回りに回動不可能に第一取付ブラケット１０側の軸部４２２に嵌装される。   The washer 436 is fitted to the shaft portion 422 on the first mounting bracket 10 side so as not to rotate about the axis of the third rotation bolt 42.

以上のように本発明の第三の実施例に係る自由継手３００は、第一連結対象物となるディスプレイ装置２に取り付けられ、ディスプレイ装置２と第一取付部材となる第一取付ブラケット１０との間に配置される第三取付部材となる第三取付ブラケット４１と、第三取付ブラケット４１に取り付けられるとともに、第一回動軸部材となる第一回動ボルト３４に直交して第一取付ブラケット１０に回動可能に軸支される第三回動軸部材となる第三回動ボルト４２と、第三回動ボルト４２と第一取付ブラケット１０との間に制動力を発生させることにより第三取付ブラケット４１が第一取付ブラケット１０に対して第三回動ボルト４２の軸回りに回動することを規制する第三制動部材４３と、を備えるものである。
このような構成により、第一連結対象物となるディスプレイ装置２が第一回動ボルト３４の軸回りおよび第二回動ボルト３５の軸回りの二方向に加えて第三回動ボルト４２の軸回りにも回動可能であるとともに、第一連結対象物となるディスプレイ装置２の回動を規制可能であるため、姿勢の自由度が高く、かつ姿勢保持可能な自由継手３００を構成することが可能である。 As described above, the free joint 300 according to the third embodiment of the present invention is attached to the display device 2 serving as the first connection object, and the display device 2 and the first mounting bracket 10 serving as the first mounting member. A third mounting bracket 41 serving as a third mounting member disposed between the first mounting bracket 41 and a first mounting bracket which is mounted on the third mounting bracket 41 and perpendicular to the first rotating bolt 34 serving as the first rotating shaft member. The third rotation bolt 42 is a third rotation shaft member that is pivotally supported by the first rotation shaft 10, and the braking force is generated between the third rotation bolt 42 and the first mounting bracket 10. And a third braking member 43 that restricts the three mounting brackets 41 from rotating about the axis of the third rotating bolt 42 with respect to the first mounting bracket 10.
With such a configuration, the display device 2 serving as the first connection object is attached to the axis of the third rotation bolt 42 in addition to the two directions around the axis of the first rotation bolt 34 and the axis of the second rotation bolt 35. It is possible to configure the free joint 300 having a high degree of freedom in posture and being capable of maintaining the posture because the rotation of the display device 2 serving as the first connection object can be restricted while being able to turn around. Is possible.

なお、本実施例においては第三取付ブラケット４１を第一取付ブラケット１０に取り付けたが、本発明はこれに限定されず、第三取付ブラケット４１と略同一構造の第四取付部材を第二取付ブラケット２０に取り付ける構成でもよい。例えば、第二連結対象物に取り付けられ、第二連結対象物と第二取付部材との間に配置される第四取付部材と、第四取付部材を第二取付部材に回動可能に軸支する第四回動軸部材と、第四取付部材と第二取付部材との間に制動力を発生させることにより第四取付部材が第二取付部材に対して第四回動軸部材の軸回りに回動することを規制する第四制動部材と、を備える構成にしてもよい。   In the present embodiment, the third mounting bracket 41 is mounted on the first mounting bracket 10, but the present invention is not limited to this, and a fourth mounting member having substantially the same structure as the third mounting bracket 41 is mounted on the second mounting bracket. The structure attached to the bracket 20 may be sufficient. For example, a fourth attachment member that is attached to the second connection object and disposed between the second connection object and the second attachment member, and the fourth attachment member is pivotally supported by the second attachment member. A fourth rotating shaft member that generates a braking force between the fourth mounting member and the second mounting member, whereby the fourth mounting member rotates about the fourth rotating shaft member relative to the second mounting member. And a fourth braking member that restricts the rotation of the second braking member.

ディスプレイ装置と取付部材とを連結した状態の第一実施例に係る自在継手を示した平面図。The top view which showed the universal joint which concerns on the 1st Example of the state which connected the display apparatus and the attachment member. 自在継手を示した斜視図。The perspective view which showed the universal joint. 自在継手を示した正面図。The front view which showed the universal joint. 第一取付ブラケットを示した斜視図。The perspective view which showed the 1st attachment bracket. 第二取付ブラケットを示した斜視図。The perspective view which showed the 2nd mounting bracket. 連結ブラケットを示した斜視図。The perspective view which showed the connection bracket. 図３におけるＡ―Ａ’断面図。FIG. 4 is a cross-sectional view taken along line A-A ′ in FIG. 3. 図３におけるＢ―Ｂ’断面図。FIG. 4 is a cross-sectional view along B-B ′ in FIG. 3. 第一・第二回動ボルトおよび第一・第二制動部材を示した斜視図。The perspective view which showed the 1st, 2nd rotation bolt and the 1st, 2nd braking member. 第一取付ブラケットが回動した状態の自在継手を示した平面図。The top view which showed the universal joint in the state which the 1st mounting bracket rotated. 第二取付ブラケットが回動した状態の自在継手を示した側面図。The side view which showed the universal joint of the state which the 2nd mounting bracket rotated. 第二実施例に係る自由継手を示した断面図。Sectional drawing which showed the free joint which concerns on 2nd Example. 第三実施例に係る自由継手を示した平面図。The top view which showed the free joint which concerns on a 3rd Example.

２ ディスプレイ装置（第一連結対象物）
３ 取付部材（第二連結対象物）
１０ 第一取付ブラケット（第一取付部材）
１１ 第一基板（第一取付部）
１２ 第一側板（第一軸支部）
２０ 第二取付ブラケット（第二取付部材）
２１ 第二基板（第二取付部）
２２ 第二側板（第二軸支部）
３０ 連結ブラケット（連結部材）
３１ 基板（中央板）
３２ 長側板（端板）
３３ 短側板（端板）
３４ 第一回動ボルト（第一回動軸部材、第一軸片）
３５ 第二回動ボルト（第二回動軸部材、第二軸片）
３６ 第一制動部材
３７ 第二制動部材
３８ 第二回動軸部材
３９ 捩りばね
４１ 第三取付ブラケット（第三取付部材）
４２ 第三回動ボルト（第三回動軸部材）
４３ 第三制動部材
１００ 自在継手
１１２ 切欠部
２００ 自由継手
３００ 自由継手
３６１ 第一波形座金（第一付勢部材）
３６２ 第一ナット（第一付勢力調整部材）
３７１ 第二波形座金（第二付勢部材）
３７２ 第二ナット（第二付勢力調整部材）
３９１ 捩りばねの一端部
３９２ 捩りばねの他端部
2 Display device (first connected object)
3 Mounting member (second connection object)
10 First mounting bracket (first mounting member)
11 First board (first mounting part)
12 First side plate (first shaft support)
20 Second mounting bracket (second mounting member)
21 Second board (second mounting part)
22 Second side plate (second shaft support)
30 Connection bracket (connection member)
31 Substrate (center plate)
32 Long side plate (end plate)
33 Short side plate (end plate)
34 First rotation bolt (first rotation shaft member, first shaft piece)
35 Second turning bolt (second turning shaft member, second shaft piece)
36 First brake member 37 Second brake member 38 Second rotating shaft member 39 Torsion spring 41 Third mounting bracket (third mounting member)
42 Third rotation bolt (third rotation shaft member)
43 Third braking member 100 Universal joint 112 Notch 200 Free joint 300 Free joint 361 First corrugated washer (first biasing member)
362 First nut (first biasing force adjusting member)
371 Second corrugated washer (second biasing member)
372 Second nut (second biasing force adjusting member)
391 One end of torsion spring 392 The other end of torsion spring

Claims (12)

第一連結対象物を第二連結対象物に回動自在に連結する自在継手であって、
前記第一連結対象物に取り付けられる第一取付部材と、
前記第二連結対象物に取り付けられる第二取付部材と、
前記第一取付部材と前記第二取付部材とを回動可能に連結する連結部材と、を備え、
前記連結部材は、
前記第一取付部材に回動可能に軸支される第一回動軸部材と、
前記第一回動軸部材に直交するとともに、前記第二取付部材に回動可能に軸支される前記第二回動軸部材と、
前記第一回動軸部材と前記第一取付部材との間に制動力を発生させることにより前記第一取付部材が前記連結部材に対して前記第一回動軸部材の軸回りに回動することを規制する第一制動部材と、
前記第二回動軸部材と前記第二取付部材との間に制動力を発生させることにより前記第二取付部材が前記連結部材に対して前記第二回動軸部材の軸回りに回動することを規制する第二制動部材と、を備え、
前記第一取付部材は、
前記第一連結対象物に取り付けられる第一取付部と、
前記第一取付部に所定の間隔を空けて設けられ、前記第一回動軸部材の両端部を回動可能に軸支する一対の第一軸支部と、を有し、
前記第二取付部材は、
前記第二連結対象物に取り付けられる第二取付部と、
前記第二取付部に所定の間隔を空けて設けられ、前記第二回動軸部材の両端部を回動可能に軸支する一対の第二軸支部と、を有し、
前記一対の第一軸支部の間隔は、前記一対の第二軸支部の間隔よりも大きく、
前記第一取付部には、前記第一取付部材が前記第一回動軸部材の軸回りに回動したときに前記第二回動軸部材の軸端部を収容する切欠部が形成される自在継手。 A universal joint for rotatably connecting the first connection object to the second connection object,
A first attachment member attached to the first connection object;
A second attachment member attached to the second connection object;
A connecting member that rotatably connects the first mounting member and the second mounting member;
The connecting member is
A first rotating shaft member pivotally supported by the first mounting member;
The second rotation shaft member that is orthogonal to the first rotation shaft member and is rotatably supported by the second mounting member;
By generating a braking force between the first rotating shaft member and the first mounting member, the first mounting member rotates about the axis of the first rotating shaft member with respect to the connecting member. A first braking member that regulates,
By generating a braking force between the second rotating shaft member and the second mounting member, the second mounting member rotates about the axis of the second rotating shaft member with respect to the connecting member. A second braking member that regulates ,
The first mounting member is
A first attachment portion attached to the first connection object;
A pair of first shaft support portions that are provided at a predetermined interval in the first mounting portion and pivotally support both end portions of the first rotation shaft member;
The second mounting member is
A second attachment portion attached to the second connection object;
A pair of second shaft support portions that are provided at a predetermined interval in the second mounting portion and pivotally support both end portions of the second rotation shaft member;
An interval between the pair of first shaft support portions is larger than an interval between the pair of second shaft support portions,
Wherein the first mounting portion, the cutout portion for accommodating the shaft end portion of the second pivot shaft member Ru is formed when the first mounting member is rotated about the axis of the first pivot shaft member Universal joint. 前記第一制動部材は、
前記第一回動軸部材の軸方向に付勢力を付与する第一付勢部材と、
前記第一付勢部材の付勢力を調整する第一付勢力調整部材と、を備え、
前記第二制動部材は、
前記第二回動軸部材の軸方向に付勢力を付与する第二付勢部材と、
前記第二付勢部材の付勢力を調整する第二付勢力調整部材と、を備える請求項１に記載の自在継手。 The first braking member is
A first biasing member that applies a biasing force in the axial direction of the first rotation shaft member;
A first biasing force adjusting member that adjusts the biasing force of the first biasing member,
The second braking member is
A second biasing member that applies a biasing force in the axial direction of the second rotating shaft member;
The universal joint according to claim 1, further comprising a second biasing force adjusting member that adjusts a biasing force of the second biasing member. 前記第一付勢部材は、
前記第一回動軸部材に嵌装される第一ばね座金または第一波形座金であり、
前記第二付勢部材は、
前記第二回動軸部材に嵌装される第二ばね座金または第二波形座金である請求項１または請求項２に記載の自在継手。 The first biasing member is
A first spring washer or a first wave washer fitted to the first rotating shaft member;
The second biasing member is
The universal joint according to claim 1 or 2, wherein the universal joint is a second spring washer or a second corrugated washer fitted to the second rotating shaft member. 前記第一回動軸部材の軸心と前記第二回動軸部材の軸心とは、同一平面内に配置される請求項１から請求項３までのいずれか一項に記載の自在継手。 4. The universal joint according to claim 1 , wherein the axis of the first rotation shaft member and the axis of the second rotation shaft member are arranged in the same plane. 5. 前記連結部材は、
前記第一回動軸部材および前記第二回動軸部材を支持する支持部材を備える請求項１から請求項４までのいずれか一項に記載の自在継手。 The connecting member is
The universal joint as described in any one of Claims 1-4 provided with the supporting member which supports said 1st rotating shaft member and said 2nd rotating shaft member. 前記支持部材の形状は一端が開口されるとともに他端が閉塞された筒状であり、
前記第一回動軸部材は一対の第一軸片からなり、
前記第二回動軸部材は一対の第二軸片からなり、
前記一対の第一軸片および前記一対の第二軸片は前記支持部材の外周面から突出し、
前記支持部材の筒状の周面に設けられた一対の第一軸片の軸線は互いに一直線となり、
前記支持部材の筒状の周面に設けられた一対の第二軸片の軸線は互いに一直線となる請求項５に記載の自在継手。 The shape of the support member is a cylindrical shape with one end opened and the other end closed,
The first rotating shaft member is composed of a pair of first shaft pieces,
The second rotating shaft member is composed of a pair of second shaft pieces,
The pair of first shaft pieces and the pair of second shaft pieces protrude from the outer peripheral surface of the support member,
The axes of the pair of first shaft pieces provided on the cylindrical peripheral surface of the support member are aligned with each other,
The universal joint according to claim 5 , wherein the axes of the pair of second shaft pieces provided on the cylindrical peripheral surface of the support member are aligned with each other. 前記支持部材は、
略四角形の中央板および前記中央板の四片からそれぞれ延設される四つの端板を有する略十字形の金属板を出発材とし、
前記金属板の四つの端板を前記中央板との境界部分で前記中央板に対して略垂直に折り曲げることにより成形される請求項６に記載の自在継手。 The support member is
Starting from a substantially cross-shaped metal plate having a substantially square central plate and four end plates respectively extending from four pieces of the central plate,
The universal joint according to claim 6 , wherein the four end plates of the metal plate are formed by bending substantially perpendicularly to the central plate at a boundary portion with the central plate. 前記支持部材の形状は両端が開口された筒状であり、
前記第一回動軸部材は一対の第一軸片からなり、
前記第二回動軸部材は一対の第二軸片からなり、
前記一対の第一軸片および前記一対の第二軸片は前記支持部材の外周面から突出し、
前記支持部材の筒状の周面に設けられた一対の第一軸片の軸線は互いに一直線となり、
前記支持部材の筒状の周面に設けられた一対の第二軸片の軸線は互いに一直線となる請求項７に記載の自在継手。 The shape of the support member is a cylindrical shape with both ends opened,
The first rotating shaft member is composed of a pair of first shaft pieces,
The second rotating shaft member is composed of a pair of second shaft pieces,
The pair of first shaft pieces and the pair of second shaft pieces protrude from the outer peripheral surface of the support member,
The axes of the pair of first shaft pieces provided on the cylindrical peripheral surface of the support member are aligned with each other,
The universal joint according to claim 7 , wherein the axes of the pair of second shaft pieces provided on the cylindrical peripheral surface of the support member are aligned with each other. 前記第一回動軸部材に巻回され、一端部が前記連結部材に係止され、かつ他端部が前記第一取付部材に係止される第一捩りばねを備える請求項１から請求項８までのいずれか一項に記載の自在継手。 Wherein the first pivot shaft member wound wound on one end portion is engaged with the connecting member, and claims from claim 1, further comprising a first torsion spring and the other end portion is engaged with the first mounting member 9. The universal joint according to any one of up to 8 . 前記第二回動軸部材に巻回され、一端部が前記連結部材に係止され、かつ他端部が前記第二取付部材に係止される第二捩りばねを備える請求項１から請求項９までのいずれか一項に記載の自在継手。 It said second pivot shaft member wound wound on one end portion is engaged with the connecting member, and claims from claim 1, further comprising a second torsion spring the other end is engaged with the second mounting member The universal joint according to any one of 9 to 9 . 前記第一連結対象物に取り付けられ、前記第一連結対象物と前記第一取付部材との間に配置される第三取付部材と、
前記第三取付部材を前記第一取付部材に回動可能に軸支する第三回動軸部材と、
前記第三取付部材と前記第一取付部材との間に制動力を発生させることにより前記第三取付部材が前記第一取付部材に対して前記第三回動軸部材の軸回りに回動することを規制する第三制動部材と、を備える請求項１から請求項１０までのいずれか一項に記載の自在継手。 A third attachment member attached to the first connection object, and disposed between the first connection object and the first attachment member;
A third rotating shaft member that pivotally supports the third mounting member on the first mounting member;
By generating a braking force between the third mounting member and the first mounting member, the third mounting member rotates about the third rotation shaft member with respect to the first mounting member. A universal joint according to any one of claims 1 to 10 , further comprising a third braking member that regulates this. 前記第二連結対象物に取り付けられ、前記第二連結対象物と前記第二取付部材との間に配置される第四取付部材と、
前記第四取付部材を前記第二取付部材に回動可能に軸支する第四回動軸部材と、
前記第四取付部材と前記第二取付部材との間に制動力を発生させることにより前記第四取付部材が前記第二取付部材に対して前記第四回動軸部材の軸回りに回動することを規制する第四制動部材と、を備える請求項１から請求項１１までのいずれか一項に記載の自在継手。 A fourth attachment member attached to the second connection object, and disposed between the second connection object and the second attachment member;
A fourth rotating shaft member that pivotally supports the fourth mounting member to the second mounting member;
By generating a braking force between the fourth mounting member and the second mounting member, the fourth mounting member rotates around the axis of the fourth rotating shaft member with respect to the second mounting member. The universal joint as described in any one of Claim 1-11 provided with the 4th braking member which regulates this.
JP2008326136A 2008-12-22 2008-12-22 Universal joint Expired - Fee Related JP5213691B2 (en)

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