JP6415340B2

JP6415340B2 - Lift lock device

Info

Publication number: JP6415340B2
Application number: JP2015015584A
Authority: JP
Inventors: 泰昭大野; 佐藤　勝彦; 勝彦佐藤
Original assignee: Ishiguro Manufacturing Co Ltd
Current assignee: Ishiguro Manufacturing Co Ltd
Priority date: 2015-01-29
Filing date: 2015-01-29
Publication date: 2018-10-31
Anticipated expiration: 2035-01-29
Also published as: JP2016138437A

Description

本発明は、被取付物を設置面に対して昇降させるためのリフトロック装置に関する。 The present invention relates to a lift lock device for moving an attached object up and down with respect to an installation surface.

従来、この種のリフトロック装置としては、接地部材を昇降操作する右レバー部材および左レバー部材がハンドル部材に接続され、ハンドル部材を下側に押動して右レバー部材および左レバー部材を一方向へ回動させることにより、接地部材が下降し、ハンドル部材を上側に押動して右レバー部材および左レバー部材を他方向へ回動させることにより、接地部材が上昇する構成のものが知られている（例えば、特許文献１参照。）。 Conventionally, in this type of lift lock device, a right lever member and a left lever member for raising and lowering a grounding member are connected to a handle member, and the handle member is pushed downward to connect the right lever member and the left lever member together. It is known that the grounding member is lowered by rotating in the direction, and the grounding member is lifted by pushing the handle member upward and rotating the right lever member and the left lever member in the other direction. (For example, refer to Patent Document 1).

特開２０１１−１３９７７０号公報JP 2011-139770 A

しかしながら、上述の特許文献１の構成では、被取付物の片側でのみハンドル部材による操作が可能であり、比較的大きな被取付物に取り付けられた場合には、操作しにくい場合が考えられる。 However, in the configuration of the above-described Patent Document 1, it is possible to operate the handle member only on one side of the attached object, and it may be difficult to operate when attached to a relatively large attached object.

また、接地部材を上昇させるには、例えば足のつま先や手の指等でハンドル部材を上側に押動し右レバー部材および左レバー部材を回動させる必要があるため、例えばパーテーション等のように下端部と設置面との隙間が比較的小さくなる被取付物に取り付けられた場合には、操作しにくい場合が考えられる。 Further, in order to raise the grounding member, for example, it is necessary to push the handle member upward with a toe or a finger of a hand and rotate the right lever member and the left lever member. When attached to a to-be-attached object from which a clearance gap between a lower end part and an installation surface becomes comparatively small, the case where it is difficult to operate can be considered.

本発明はこのような点に鑑みなされたもので、操作性を向上できるリフトロック装置を提供することを目的とする。 This invention is made in view of such a point, and it aims at providing the lift lock apparatus which can improve operativity.

請求項１に記載されたリフトロック装置は、被取付物を設置面に対して昇降させるリフトロック装置であって、被取付物に固定される取付部材と、この取付部材に対して上下方向に移動可能に取り付けられた接地部材と、取付部材に対して接地部材を上方へ移動させる方向に付勢する付勢部材と、取付部材および接地部材の一方側において、取付部材に対する接地部材の移動を操作する第１の操作部材と、取付部材および接地部材の他方側において、取付部材に対する接地部材の移動を操作する第２の操作部材と、付勢部材の付勢力に抗して取付部材に対し接地部材を下方へ移動させた状態を保持する保持手段とを具備し、第１の操作部材は、取付部材に回動可能に取り付けられ一部が接地部材に当接されたレバー部と、取付部材および接地部材の一方側に位置するようにレバー部に設けられた操作部とを有し、第２の操作部材は、取付部材に回動可能に取り付けられ一部が接地部材に当接されたレバー部と、取付部材および接地部材の他方側に位置するようにレバー部に設けられた操作部とを有し、取付部材に対して接地部材が上方へ移動した状態では、第１の操作部材および第２の操作部材のいずれか一方の操作部を押し下げレバー部を一方向に回動させることにより接地部材が取付部材に対して下方へ移動した状態になって被取付物が設置面から離間し、接地部材が取付部材に対して下方へ移動した状態が保持手段にて保持され、接地部材が取付部材に対して下方へ移動した状態では、第１の操作部材および第２の操作部材のうちのレバー部が一方向に回動している方の操作部を押し込んで保持手段による保持を解除することにより、付勢部材の付勢力で接地部材が取付部材に接近するように上方へ移動して被取付物が設置面に接触するものである。 The lift lock device according to claim 1 is a lift lock device which raises and lowers the attachment object with respect to the installation surface, and an attachment member fixed to the attachment object and a vertical direction with respect to the attachment member. A grounding member that is movably attached, a biasing member that biases the grounding member in a direction in which the grounding member is moved upward relative to the mounting member, and a movement of the grounding member relative to the mounting member on one side of the mounting member and the grounding member. The first operating member to be operated, the second operating member for operating the movement of the grounding member relative to the mounting member on the other side of the mounting member and the grounding member, and the mounting member against the biasing force of the biasing member Holding means for holding the state in which the grounding member is moved downward, and the first operating member is pivotally attached to the mounting member and partly abutted against the grounding member; Member and grounding And a second operating member that is rotatably attached to the mounting member and a part of which is in contact with the grounding member. And an operating portion provided on the lever portion so as to be positioned on the other side of the mounting member and the grounding member, and in a state where the grounding member has moved upward with respect to the mounting member, the first operating member and the first operating member By pressing down one of the operation members of 2 and turning the lever part in one direction, the grounding member is moved downward with respect to the attachment member, and the attached object is separated from the installation surface, The state in which the grounding member has moved downward with respect to the mounting member is held by the holding means, and in the state in which the grounding member has moved downward with respect to the mounting member, of the first operating member and the second operating member Operation when the lever is rotating in one direction By releasing the push is maintained by the holding means, in which the attached matter moves upward into contact with the installation surface as the ground member by the urging force of the urging member approaches the mounting member.

請求項２に記載されたリフトロック装置は、請求項１記載のリフトロック装置において、保持手段は、レバー部に設けられた係合部と、接地部材に設けられ被係合部とを有し、レバー部を一方向に回動させて係合部と被係合部とが係合されることにより、接地部材が取付部材に対して下方へ移動した状態を保持するものである。 The lift lock device according to claim 2 is the lift lock device according to claim 1, wherein the holding means includes an engaging portion provided in the lever portion and an engaged portion provided in the grounding member. By rotating the lever part in one direction and engaging the engaging part and the engaged part, the grounding member is held in a state of moving downward relative to the mounting member.

本発明によれば、取付部材および接地部材における一方側にて取付部材に対する接地部材の移動を操作可能な第１の操作部材と、取付部材および接地部材における他方側にて取付部材に対する接地部材の移動を操作可能な第２の操作部材とを具備し、接地部材を取付部材に対して下方へ移動させる際、および、接地部材を取付部材に対して上方へ移動させる際のいずれも操作部を押し下げるように操作できるため、操作性を向上できる。 According to the present invention, the first operating member capable of operating the movement of the grounding member relative to the mounting member on one side of the mounting member and the grounding member, and the grounding member relative to the mounting member on the other side of the mounting member and the grounding member. A second operating member operable to move, and when the grounding member is moved downward with respect to the mounting member and when the grounding member is moved upward with respect to the mounting member, the operating portion is provided. Since it can be operated to push down, the operability can be improved.

本発明の一実施の形態に係るリフトロック装置が被取付物に取り付けられた状態を示す斜視図である。It is a perspective view which shows the state in which the lift lock apparatus which concerns on one embodiment of this invention was attached to the to-be-attached object. （ａ）は、被取付物に取り付けられたリフトロック装置の通常状態を示す側面図であり、（ｂ）は、被取付物に取り付けられたリフトロック装置のロック状態を示す側面図である。(A) is a side view which shows the normal state of the lift lock apparatus attached to the to-be-attached object, (b) is a side view which shows the lock state of the lift lock apparatus attached to the to-be-attached object. リフトロック装置の構成を示す斜視図である。It is a perspective view which shows the structure of a lift lock apparatus. 同上リフトロック装置の分解した状態を示す斜視図である。It is a perspective view which shows the state which the lift lock apparatus same as the above decomposed | disassembled. （ａ）は、リフトロック装置の通常状態を示す正面図であり、（ｂ）は、リフトロック装置のロック状態を示す正面図である。(A) is a front view which shows the normal state of a lift lock apparatus, (b) is a front view which shows the lock state of a lift lock apparatus. （ａ）は、リフトロック装置の通常状態を示す背面図であり、（ｂ）は、リフトロック装置のロック状態を示す背面図である。(A) is a rear view which shows the normal state of a lift lock apparatus, (b) is a rear view which shows the lock state of a lift lock apparatus. （ａ）は、リフトロック装置の通常状態を示す断面図であり、（ｂ）は、リフトロック装置のロック状態を示す断面図である。(A) is sectional drawing which shows the normal state of a lift lock apparatus, (b) is sectional drawing which shows the lock state of a lift lock apparatus.

以下、本発明の一実施の形態の構成について図面を参照しながら詳細に説明する。 Hereinafter, the configuration of an embodiment of the present invention will be described in detail with reference to the drawings.

図１において、１はリフトロック装置であり、このリフトロック装置１は、例えば下部にキャスター２が設けられたパーテーションの脚部等の被取付物３に取り付けられて、被取付物３をその設置面に対して昇降させて接離させる。 In FIG. 1, reference numeral 1 denotes a lift lock device. The lift lock device 1 is attached to an attachment 3 such as a leg portion of a partition having a caster 2 provided at a lower portion thereof, and the attachment 3 is installed therein. Move up and down against the surface.

すなわち、図２（ａ）に示すように被取付物３のキャスター２が二点鎖線で示す設置面に接触した通常状態から、リフトロック装置１によって被取付物３を設置面から上昇させることにより、図２（ｂ）に示すようにキャスター２を設置面から離間させて、キャスター２をいわゆるロック状態にできる。 That is, as shown in FIG. 2A, the lift 3 is lifted from the installation surface by the lift lock device 1 from the normal state where the caster 2 of the attachment 3 is in contact with the installation surface indicated by the two-dot chain line. As shown in FIG. 2 (b), the caster 2 can be separated from the installation surface, and the caster 2 can be brought into a so-called locked state.

また、ロック状態では、リフトロック装置１による被取付物３を設置面に向かって下降させることにより、図２（ａ）に示すようにキャスター２が設置面に接触しロック状態が解除されて通常状態となる。 In the locked state, the object 3 to be attached by the lift lock device 1 is lowered toward the installation surface, so that the caster 2 comes into contact with the installation surface and the locked state is released as shown in FIG. It becomes a state.

このようなリフトロック装置１は、図３および図４に示すように、被取付物３に固定される取付部材４に対して、接地部材５が上下方向に移動可能に組み付けられている。 As shown in FIGS. 3 and 4, the lift lock device 1 is assembled such that the grounding member 5 is movable in the vertical direction with respect to the attachment member 4 fixed to the attachment 3.

また、取付部材４には、取付部材４および接地部材５の一方側において取付部材４に対する接地部材５の移動を操作する第１の操作部材６と、この第１の操作部材６とは反対側である取付部材４および接地部材５の他方側において取付部材４に対する接地部材５の移動を操作する第２の操作部材７が取り付けられている。 The attachment member 4 includes a first operation member 6 for operating the movement of the grounding member 5 relative to the attachment member 4 on one side of the attachment member 4 and the grounding member 5, and the opposite side of the first operation member 6. A second operating member 7 for operating the movement of the grounding member 5 relative to the mounting member 4 is attached to the other side of the mounting member 4 and the grounding member 5.

すなわち、リフトロック装置１は、第１の操作部材６および第２の操作部材７のうちのいずれかを操作することにより、図５（ａ）に示すように、取付部材４に対し接地部材５が接近するように上方へ移動して接地部材５が設置面から離間する通常状態と、図５（ｂ）に示すように、取付部材４に対し接地部材５が離間するように下方へ移動して接地部材５が設置面に接触するロック状態とに変更可能である。 That is, the lift lock device 1 operates one of the first operating member 6 and the second operating member 7 to operate the grounding member 5 with respect to the mounting member 4 as shown in FIG. As shown in FIG. 5 (b), the grounding member 5 moves downward so that the grounding member 5 moves away from the installation surface. Thus, the grounding member 5 can be changed to a locked state in which the grounding member 5 comes into contact with the installation surface.

また、取付部材４および接地部材５は、付勢手段としてのばね８により、取付部材４に対して接地部材５が上方へ移動する方向、すなわち取付部材４と接地部材５とが接近する方向に付勢されている。したがって、リフトロック装置１は、ロック状態から通常状態となるようにばね８にて付勢されている。 Further, the mounting member 4 and the grounding member 5 are moved in a direction in which the grounding member 5 moves upward with respect to the mounting member 4 by a spring 8 as an urging means, that is, in a direction in which the mounting member 4 and the grounding member 5 approach each other. It is energized. Therefore, the lift lock device 1 is biased by the spring 8 so as to change from the locked state to the normal state.

取付部材４は、被取付物３の取り付け箇所に固定される天面部11と、この天面部11の下側に一体に設けられた枠部12とを有している。 The attachment member 4 includes a top surface portion 11 that is fixed to the attachment location of the attachment 3 and a frame portion 12 that is integrally provided below the top surface portion 11.

天面部11は、被取付物３の取り付け箇所の形状に対応するように、例えば長手方向および幅方向を有する矩形板状に成形される。 The top surface portion 11 is formed, for example, in a rectangular plate shape having a longitudinal direction and a width direction so as to correspond to the shape of the attachment location of the attachment 3.

枠部12における一側、すなわち天面部11の幅方向の一方に対応する側には、第１の組付部13が設けられている。この第１の組付部13は、接地部材５が移動可能に組み付けられるとともに、組み付けられた接地部材５の移動方向をガイドする。 A first assembly portion 13 is provided on one side of the frame portion 12, that is, on the side corresponding to one side in the width direction of the top surface portion 11. The first assembling portion 13 is assembled so that the grounding member 5 is movable, and guides the moving direction of the assembled grounding member 5.

また、枠部12における他側、すなわち天面部11の幅方向の他方に対応する側には、第２の組付部14が設けられている。この第２の組付部14には、第１の操作部材６および第２の操作部材７が回動可能に組み付けられる。 A second assembly portion 14 is provided on the other side of the frame portion 12, that is, the side corresponding to the other side in the width direction of the top surface portion 11. The first operating member 6 and the second operating member 7 are rotatably mounted on the second assembly portion 14.

第１の組付部13は、図４ないし図７に示すように、天面部11の下側面の幅方向の略中央において長手方向の全長にわたって設けられた板状の背面部15と、天面部11の下側面の長手方向の一端部において背面部15の一端部から天面部11の幅方向の一方側に設けられた板状の側面部16と、天面部11の下側面の長手方向の他端部において背面部15の他端部から天面部11の幅方向の一方側に設けられた板状の側面部17とを有している。 As shown in FIGS. 4 to 7, the first assembly portion 13 includes a plate-like back surface portion 15 provided over the entire length in the longitudinal direction at a substantially center in the width direction of the lower surface of the top surface portion 11, and the top surface portion. 11 in the longitudinal direction of the lower surface of the lower surface 11 and the plate-shaped side surface 16 provided on one side in the width direction of the top surface portion 11 from one end of the back surface portion 15; At the end portion, a plate-like side surface portion 17 provided on one side in the width direction of the top surface portion 11 from the other end portion of the back surface portion 15 is provided.

また、第１の組付部13は、図６に示すように、側面部16における背面部15とは反対側の端部の下側の一部から内側へ向かって突出した板状の突出片部18と、側面部17における背面部15とは反対側の端部の下側の一部から内側へ向かって突出した板状の突出片部19と、背面部15の下端部における中心に位置し第２の組付部14とは反対側へ突出してばね８の一端側を固定可能な板状の底面部20とを有している。 Further, as shown in FIG. 6, the first assembling portion 13 is a plate-like projecting piece projecting inward from a part of the side portion 16 on the side opposite to the back surface portion 15 from the lower side. Part 18, a plate-like projecting piece 19 projecting inward from a part of the lower side of the side part 17 opposite to the back part 15, and the center of the lower part of the back part 15 It has a plate-like bottom surface portion 20 that protrudes opposite to the second assembly portion 14 and can fix one end side of the spring 8.

すなわち、第１の組付部13は、突出片部18と突出片部19とが離間し、側面部16の背面部15とは反対側の端部における突出片部18より上側と側面部17の背面部15とは反対側の端部における突出片部19より上側とが離間し、側面部16と底面部20とが離間し、側面部17と底面部20とが離間して、内部が空洞の略箱状に成形されている。 That is, the first assembling part 13 has the protruding piece part 18 and the protruding piece part 19 separated from each other, and the side part 17 is located above the protruding piece part 18 at the end of the side part 16 opposite to the back part 15. The upper side of the projecting piece portion 19 at the end opposite to the back surface portion 15 is spaced apart, the side surface portion 16 and the bottom surface portion 20 are separated, the side surface portion 17 and the bottom surface portion 20 are separated, and the interior is It is shaped like a hollow box.

第２の組付部14は、背面部15の略中心部から天面部11の幅方向の他方側へ突出し第１の操作部材６および第２の操作部材７を軸支するためのボス21を有している。 The second assembly portion 14 protrudes from the substantially central portion of the back surface portion 15 to the other side in the width direction of the top surface portion 11 and has a boss 21 for supporting the first operation member 6 and the second operation member 7. Have.

ボス21は、図７に示すように、背面部15に一体に形成された円筒状の大径部22と、この大径部22の先端に設けられ外径が大径部22の外径より小径である円筒状の小径部23とを有している。 As shown in FIG. 7, the boss 21 has a cylindrical large-diameter portion 22 formed integrally with the back surface portion 15, and the outer diameter of the boss 21 provided at the tip of the large-diameter portion 22 is larger than the outer diameter of the large-diameter portion 22. A cylindrical small-diameter portion 23 having a small diameter.

また、ボス21の内部には、大径部22から小径部23にわたって、ねじ24を螺着可能な雌ねじ部25が設けられている。 Further, inside the boss 21, a female screw portion 25 to which a screw 24 can be screwed is provided from the large diameter portion 22 to the small diameter portion 23.

第２の組付部14には、背面部15から突出し、ボス21に軸支された第１の操作部材６および第２の操作部材７を支持する支持部26が設けられている。 The second assembly portion 14 is provided with a support portion 26 that protrudes from the back surface portion 15 and supports the first operation member 6 and the second operation member 7 that are pivotally supported by the boss 21.

この支持部26は、ボス21より天面部11における長手方向の外側に位置し天面部11に対して傾斜した傾斜面27aを有する外側支持部27と、これら外側支持部27間でボス21の上方に位置し円弧状の円弧面28aを有する内側支持部28とを有している。 This support portion 26 is located outside the boss 21 in the longitudinal direction of the top surface portion 11 and has an outer support portion 27 having an inclined surface 27a inclined with respect to the top surface portion 11, and above the boss 21 between these outer support portions 27. And an inner support portion 28 having an arcuate arc surface 28a.

接地部材５は、取付部材４に対して下方へ移動した状態にて下側面が設置面に接触する板状の底部31と、この底部31から上方に立設され第１の組付部13内で摺動可能な摺動部32とを有している。 The grounding member 5 has a plate-like bottom 31 whose lower surface contacts the installation surface in a state of moving downward with respect to the mounting member 4, and stands upward from the bottom 31, in the first assembly 13. And a sliding portion 32 that can slide.

底部31は、長手方向および幅方向を有する略矩形板状の基板部31aと、この基板部31aの下側に設けられ基板部31aより小さい略矩形板状の接地部31bとを有している。 The bottom portion 31 includes a substantially rectangular plate-shaped substrate portion 31a having a longitudinal direction and a width direction, and a substantially rectangular plate-shaped grounding portion 31b provided below the substrate portion 31a and smaller than the substrate portion 31a. .

また、基板部31aの上面には、長手方向の略中央において幅方向に沿って延びる凹状の被係合部としての係合溝部33が設けられている。 Further, on the upper surface of the substrate portion 31a, an engagement groove portion 33 is provided as a concave engaged portion extending along the width direction at a substantially center in the longitudinal direction.

摺動部32は、第１の組付部13の内部の空洞部分の形状および大きさに対応した矩形板状の摺動天板部32aと、この摺動天板部32aの一端部側から下側へ一体に設けられた摺動側板部32bと、摺動天板部32aの他端側から下側へ一体に設けられた摺動側板部32cとを有している。 The sliding portion 32 includes a rectangular plate-like sliding top plate portion 32a corresponding to the shape and size of the hollow portion inside the first assembly portion 13, and one end side of the sliding top plate portion 32a. It has a sliding side plate portion 32b provided integrally on the lower side, and a sliding side plate portion 32c provided integrally on the lower side from the other end side of the sliding top plate portion 32a.

これら摺動側板部32bと摺動側板部32cとは互いに離間しており、この離間距離は、第１の組付部13における底部31の幅寸法に対応している。 The sliding side plate portion 32b and the sliding side plate portion 32c are separated from each other, and the separation distance corresponds to the width dimension of the bottom portion 31 in the first assembly portion 13.

摺動天板部32aの下側面における摺動側板部32bと摺動側板部32cとの間には、下側へ突出しばね８の他端側を固定可能な突出部34が設けられている。 Between the sliding side plate portion 32b and the sliding side plate portion 32c on the lower side surface of the sliding top plate portion 32a, a protruding portion 34 that protrudes downward and can fix the other end side of the spring 8 is provided.

そして、第１の組付部13に接地部材５が組み付けられた状態では、図６に示すように、摺動天板部32aが第１の組付部13の空洞内において底部31より上方に配置され、摺動部32の摺動側板部32bと摺動側板部32cとの間に第１の組付部13の底部31が配置されている。 In the state where the grounding member 5 is assembled to the first assembly portion 13, the sliding top plate portion 32 a is located above the bottom portion 31 in the cavity of the first assembly portion 13 as shown in FIG. 6. The bottom portion 31 of the first assembly 13 is disposed between the sliding side plate portion 32b and the sliding side plate portion 32c of the sliding portion 32.

また、図６（ａ）および図７（ａ）に示すように接地部材５が取付部材４に対して上方へ移動し底部31と摺動天板部32aとが離間した通常状態にて、ばね８の一端側が底部31に固定され、他端側が突出部34に固定されている。 Further, as shown in FIGS. 6 (a) and 7 (a), in the normal state in which the grounding member 5 moves upward with respect to the mounting member 4 and the bottom portion 31 and the sliding top plate portion 32a are separated from each other, the spring One end of 8 is fixed to the bottom 31 and the other end is fixed to the protrusion 34.

そのため、図６（ｂ）および図７（ｂ）に示すように、接地部材５が取付部材４に対して下方で移動し底部31と摺動天板部32aとが接近したロック状態では、ばね８が収縮する。 Therefore, as shown in FIGS. 6B and 7B, in the locked state in which the grounding member 5 moves downward with respect to the mounting member 4 and the bottom 31 and the sliding top plate 32a approach each other, the spring 8 contracts.

すなわち、ロック状態では、取付部材４および接地部材５は、収縮したばね８の復元力により、底部31と摺動天板部32aとが離間し取付部材４に対して接地部材５が上方へ移動する方向に付勢され、通常状態となるように付勢されている。 That is, in the locked state, the mounting member 4 and the grounding member 5 are separated from the bottom 31 and the sliding top plate 32a by the restoring force of the contracted spring 8, and the grounding member 5 moves upward with respect to the mounting member 4. It is energized in the direction to perform, and is energized so as to be in a normal state.

第１の操作部材６および第２の操作部材７は、取付部材４に回動可能に取り付けられるレバー部41と、このレバー部41の先端に設けられた板状の操作部としての押圧部42とを有している。 The first operation member 6 and the second operation member 7 include a lever portion 41 that is rotatably attached to the attachment member 4, and a pressing portion 42 as a plate-like operation portion provided at the tip of the lever portion 41. And have.

なお、第１の操作部材６の押圧部42は、取付部材４および接地部材５の一方側に位置するようにレバー部41の先端に設けられ、第２の操作部材７の押圧部42は、取付部材４および接地部材５の他方側に位置するようにレバー部41の先端に設けられている。 The pressing portion 42 of the first operating member 6 is provided at the tip of the lever portion 41 so as to be positioned on one side of the mounting member 4 and the grounding member 5, and the pressing portion 42 of the second operating member 7 is It is provided at the tip of the lever portion 41 so as to be positioned on the other side of the mounting member 4 and the grounding member 5.

レバー部41は、第２の組付部14に回動可能に軸支される軸支部43と、この軸支部43の先端側に一体に形成された当接部44とを有している。 The lever portion 41 includes a shaft support portion 43 that is pivotally supported by the second assembly portion 14 and a contact portion 44 that is integrally formed on the distal end side of the shaft support portion 43.

軸支部43は、基端部45の外周面45aが内側支持部28の円弧面28aに倣った円弧状に形成されている。 The shaft support portion 43 is formed in an arc shape in which the outer peripheral surface 45a of the base end portion 45 follows the arc surface 28a of the inner support portion 28.

また、軸支部43の基端部45より先端側に位置する先端部46は、図５（ａ）に示すように通常状態にて取付部材４の支持部26側となる一側面46aが外側支持部27の傾斜面27aに倣った形状に成形されている。 Further, as shown in FIG. 5 (a), the distal end portion 46 located on the distal end side of the proximal end portion 45 of the shaft support portion 43 is supported on the outer side by one side surface 46a which is the support portion 26 side of the mounting member 4 in the normal state. The portion 27 is shaped to follow the inclined surface 27a.

そして、図５（ａ）に示す通常状態では、基端部45の外周面45aが内側支持部28の円弧面28aに沿って配置され、かつ、先端部46の一側面46aが外側支持部27の傾斜面27aに沿って配置される。 5A, the outer peripheral surface 45a of the base end portion 45 is disposed along the arc surface 28a of the inner support portion 28, and one side surface 46a of the distal end portion 46 is the outer support portion 27. Are arranged along the inclined surface 27a.

また、通常状態からロック状態にするためにレバー部41を一方向へ回動させると、基端部45の外周面45aが内側支持部28の円弧面28aに沿って回動し、先端部46の一側面46aが外側支持部27の傾斜面27aから離間する。 Further, when the lever portion 41 is rotated in one direction in order to change from the normal state to the locked state, the outer peripheral surface 45a of the base end portion 45 rotates along the circular arc surface 28a of the inner support portion 28, and the distal end portion 46 One side surface 46 a is separated from the inclined surface 27 a of the outer support portion 27.

基端部45の中心部には円形状に貫通した孔部47が設けられており、この孔部47は、軸方向の一方側に位置する大径部48と、軸方向の他方側に位置し大径部48より小径の小径部49とを有している。 A hole 47 penetrating in a circular shape is provided at the center of the base end 45, and this hole 47 is located on the large-diameter portion 48 located on one side in the axial direction and on the other side in the axial direction. The large-diameter portion 48 has a small-diameter portion 49 smaller than the large-diameter portion 48.

大径部48は、内径がボス21の大径部22の外径およびねじ24の頭部より大径となっている。 The large diameter portion 48 has an inner diameter larger than the outer diameter of the large diameter portion 22 of the boss 21 and the head of the screw 24.

小径部49は、内径がボス21の大径部22の外径およびねじ24の頭部より小径で、かつ、ボス21の小径部23の外径よりやや大径となっている。 The small diameter portion 49 has an inner diameter smaller than the outer diameter of the large diameter portion 22 of the boss 21 and the head of the screw 24 and slightly larger than the outer diameter of the small diameter portion 23 of the boss 21.

そして、第２の操作部材７の大径部48の内部にボス21の大径部22が位置し、第２の操作部材７の小径部49の内部にボス21の小径部23が位置し、第１の操作部材６の小径部49の内部にボス21の小径部23が位置した状態にて、ねじ24がボス21の雌ねじ部25に螺着されることにより、第１の操作部材６および第２の操作部材７が取付部材４に回動可能に軸支される。 The large diameter portion 22 of the boss 21 is located inside the large diameter portion 48 of the second operation member 7, and the small diameter portion 23 of the boss 21 is located inside the small diameter portion 49 of the second operation member 7, When the small diameter portion 23 of the boss 21 is positioned inside the small diameter portion 49 of the first operation member 6, the screw 24 is screwed to the female screw portion 25 of the boss 21, thereby the first operation member 6 and The second operating member 7 is pivotally supported by the mounting member 4 so as to be rotatable.

当接部44は、軸支部43から一体成形された基部51と、この基部51に対して屈曲するように一体成形された先端部52とを有しており、これら基部51と先端部52とで平面視で略Ｌ字状に構成されている。 The contact portion 44 includes a base portion 51 integrally formed from the shaft support portion 43 and a tip portion 52 integrally formed so as to be bent with respect to the base portion 51. The base portion 51 and the tip portion 52 Thus, it is configured in a substantially L shape in plan view.

基部51は、図５（ａ）に示すように通常状態において外側支持部27側となる一側面53の一部が、軸支部43から連続した傾斜状の上面53aを構成する。この上面53aは、通常状態において外側支持部27の傾斜面27aに倣った形状となっている。 As shown in FIG. 5A, the base 51 forms an inclined upper surface 53 a in which a part of one side surface 53 on the outer support portion 27 side in a normal state is continuous from the shaft support portion 43. The upper surface 53a has a shape that follows the inclined surface 27a of the outer support portion 27 in a normal state.

また、基部51において一側面53とは反対側の他側面54は、一部が平坦に成形された平坦面54aを有しており、この平坦面54aが通常状態において接地部材５に当接する。 Further, the other side surface 54 of the base 51 opposite to the one side surface 53 has a flat surface 54a that is partly formed flat, and this flat surface 54a contacts the grounding member 5 in a normal state.

先端部52は、図５（ｂ）に示すロック状態にて接地部材５に当接する当接面55が平坦に成形されている。また、先端部52における通常状態で当接面55とは反対側である内側に位置する傾斜面56は、平面視で当接面55に対して傾斜状に成形されている。そして、このような先端部52の先端に押圧部42が固定して設けられている。 The tip portion 52 has a flat contact surface 55 that contacts the grounding member 5 in the locked state shown in FIG. In addition, the inclined surface 56 located on the inner side, which is the opposite side of the contact surface 55 in the normal state in the distal end portion 52, is formed to be inclined with respect to the contact surface 55 in plan view. The pressing portion 42 is fixedly provided at the tip of the tip 52.

基部51の他側面54と先端部52の当接面55との間には、当接面55に対して凸状の係合部としての係合突起部57が設けられている。この係合突起部57は、レバー部41を一方向に回動させることにより接地部材５の係合溝部33と係合可能であり、係合溝部33と係合突起部57とが係合されることにより保持手段58が構成される。 Between the other side surface 54 of the base portion 51 and the contact surface 55 of the tip portion 52, an engagement protrusion 57 as a convex engagement portion with respect to the contact surface 55 is provided. The engaging protrusion 57 can be engaged with the engaging groove 33 of the grounding member 5 by rotating the lever 41 in one direction, and the engaging groove 33 and the engaging protrusion 57 are engaged. Thus, the holding means 58 is configured.

そして、図５（ｂ）に示すようにレバー部41を一方向に回動させたロック状態では、レバー部41の当接面55が接地部材５の上面に当接するとともに、係合溝部33と係合突起部57とが係合して、接地部材５が取付部材４に対して下方へ移動したロック状態が保持される。 5B, in the locked state where the lever portion 41 is rotated in one direction, the contact surface 55 of the lever portion 41 contacts the upper surface of the grounding member 5, and the engagement groove portion 33 and The locked state in which the grounding member 5 has moved downward relative to the mounting member 4 is maintained by engaging with the engaging protrusion 57.

次に、上記一実施の形態の動作および作用等を説明する。 Next, the operation and action of the above embodiment will be described.

被取付物３に取り付けられ通常状態となっているリフトロック装置１をロック状態にする際には、第１の操作部材６および第２の操作部材７のうちのいずれか一方、例えば第１の操作部材６の押圧部42を、例えば手の指や足のつま先や指等で押し込む。 When the lift lock device 1 that is attached to the attachment 3 and is in a normal state is brought into the locked state, one of the first operation member 6 and the second operation member 7, for example, the first operation member 7 The pressing portion 42 of the operation member 6 is pushed in with, for example, a finger of a hand, a toe of a foot or a finger.

押圧部42を押し込むと、図５（ａ）および（ｂ）に示すように、当接部44が接地部材５の基板部31aに当接しながらレバー部41が一方向へ回動する。 When the pressing portion 42 is pushed in, as shown in FIGS. 5A and 5B, the lever portion 41 rotates in one direction while the contact portion 44 contacts the substrate portion 31a of the grounding member 5.

レバー部41が一方向へ回動すると、当接部44が接地部材５の基板部31a上を摺動して、当接部44における当接面55が接地部材５の上面に当接するとともに、係合突起部57が係合溝部33に係合する。 When the lever portion 41 rotates in one direction, the contact portion 44 slides on the substrate portion 31a of the grounding member 5, and the contact surface 55 of the contact portion 44 contacts the upper surface of the grounding member 5, The engaging protrusion 57 is engaged with the engaging groove 33.

このようなレバー部41の回動により、接地部材５は、ばね８の付勢力に抗して取付部材４に対して離間するように下方へ移動して、接地部材５の接地部31bが設置面に接触したロック状態となる。また、係合突起部57と係合溝部33との係合力により、接地部材５が取付部材４に対して下降した状態が保持される。 By such rotation of the lever portion 41, the grounding member 5 moves downward so as to be separated from the mounting member 4 against the biasing force of the spring 8, and the grounding portion 31b of the grounding member 5 is installed. The locked state comes into contact with the surface. Further, the state in which the grounding member 5 is lowered with respect to the mounting member 4 is maintained by the engaging force between the engaging protrusion 57 and the engaging groove 33.

そして、接地部材５が設置面に接触することにより、被取付物３が設置面から上昇して離間し、キャスター２が設置面に対して作用しないロック状態となる。 Then, when the grounding member 5 comes into contact with the installation surface, the attachment 3 is lifted away from the installation surface and the caster 2 is locked against the installation surface.

一方、ロック状態から通常状態にする際には、第１の操作部材６および第２の操作部材７のうちのレバー部41が一方向に回動している方、すなわち図５（ｂ）における第１の操作部材６の押圧部42を、例えば手の指や足のつま先さらに一方向へやや押し込んで、レバー部41を一方向へやや回動させる。 On the other hand, when changing from the locked state to the normal state, the lever portion 41 of the first operating member 6 and the second operating member 7 is rotating in one direction, that is, in FIG. The pressing portion 42 of the first operation member 6 is slightly pushed in one direction, for example, a finger or a toe of the hand, to slightly rotate the lever portion 41 in one direction.

ロック状態のレバー部41を一方向に回動させることにより、係合突起部57が係合溝部33を一方向側へ乗り越えるように移動して係合突起部57と係合溝部33との係合が解除される。 By rotating the lever 41 in the locked state in one direction, the engagement protrusion 57 moves so as to get over the engagement groove 33 in one direction, and the engagement protrusion 57 and the engagement groove 33 are engaged. The match is released.

係合突起部57と係合溝部33との係合が解除されると、押圧部42を押圧する力を弱めることで、ばね８の付勢力によって、取付部材４と接地部材５とが接近するように取付部材４に対して接地部材５が上方に移動するとともに、レバー部41が一方向とは反対方向である他方向へ回動する。 When the engagement between the engagement protrusion 57 and the engagement groove 33 is released, the attachment member 4 and the grounding member 5 approach each other by the biasing force of the spring 8 by weakening the force that presses the pressing portion 42. Thus, the grounding member 5 moves upward with respect to the mounting member 4, and the lever portion 41 rotates in the other direction, which is opposite to one direction.

また、接地部材５が取付部材４に対して上方へ移動することにより、被取付物３のキャスター２が設置面に接触した通常状態となる。 Moreover, when the grounding member 5 moves upward with respect to the attachment member 4, the caster 2 of the attachment 3 is brought into a normal state in contact with the installation surface.

すなわち、リフトロック装置１は、通常状態からロック状態への切り換え操作およびロック状態から通常状態への切り換え操作のいずれも、押圧部42を押圧する動作で行える、いわゆるプッシュ・プッシュ式の構成である。 That is, the lift lock device 1 has a so-called push-push type configuration in which both the switching operation from the normal state to the locking state and the switching operation from the lock state to the normal state can be performed by pressing the pressing portion 42. .

そして、上記リフトロック装置１によれば、取付部材４および接地部材５における一方側にて取付部材４に対する接地部材５の移動を操作可能な第１の操作部材６と、取付部材４および接地部材５における他方側にて取付部材４に対する接地部材５の移動を操作可能な第２の操作部材７とを備えているため、取付部材４および接地部材５の両側から取付部材４に対する接地部材５の移動を操作できる。 According to the lift lock device 1, the first operating member 6 capable of operating the movement of the grounding member 5 relative to the mounting member 4 on one side of the mounting member 4 and the grounding member 5, the mounting member 4 and the grounding member. 5 is provided with a second operating member 7 capable of operating the movement of the grounding member 5 with respect to the mounting member 4 on the other side, so that the grounding member 5 with respect to the mounting member 4 from both sides of the mounting member 4 and the grounding member 5 is provided. Can move.

すなわち、例えばリフトロック装置１がパーテーション等のように反対側へのアクセスが遮られるような比較的大きな被取付物３に取り付けられた場合であっても、例えば特許文献１等のような片側のみで操作する構成のように操作するために被取付物３の反対側へ回り込む必要がなく、被取付物３の両側からリフトロック装置１による昇降を操作できるため、操作性を向上できる。 That is, for example, even when the lift lock device 1 is attached to a relatively large attachment 3 such as a partition that prevents access to the opposite side, only one side such as Patent Document 1 is used. Therefore, it is not necessary to go around to the opposite side of the attachment 3 in order to operate as in the configuration of the operation, and the lifting / lowering by the lift lock device 1 can be operated from both sides of the attachment 3 so that the operability can be improved.

また、接地部材５を取付部材４に対して下方へ移動させてロック状態にする際、および、接地部材５を取付部材４に対して上方へ移動させて通常状態にする際のいずれも、押圧部42を押し下げるようにプッシュ・プッシュ式で操作できるため、例えばパーテーション等のように下端部と設置面との隙間が比較的小さい被取付物３であっても、被取付物３と設置面との隙間に手の指や足のつま先を引っ掛けて操作する必要がなく、押圧部42に対して力を作用させやすいので、操作性を向上できる。 Both when the grounding member 5 is moved downward with respect to the mounting member 4 to be in a locked state and when the grounding member 5 is moved upward with respect to the mounting member 4 to be in a normal state. Since it can be operated by a push-push method so as to push down the portion 42, for example, even if the attachment 3 has a relatively small gap between the lower end and the installation surface, such as a partition, the attachment 3 and the installation surface Therefore, it is not necessary to hang a finger or a toe of the hand in the gap, and it is easy to apply a force to the pressing portion 42, so that the operability can be improved.

したがって、比較的大きな被取付物３や設置面との隙間が比較的小さい被取付物３であっても、昇降操作する際の操作性が良好である。 Therefore, even if the attachment 3 is relatively large and the attachment 3 having a relatively small gap with the installation surface, the operability during the lifting operation is good.

保持手段58は、係合溝部33と係合突起部57とを有し、レバー部41を一方向に回動させて係合溝部33と係合突起部57とを係合させるだけで接地部材５が取付部材４に対して下方へ移動した状態を保持できるため、簡単な構成で設計できるとともに、操作が簡単である。 The holding means 58 has an engagement groove portion 33 and an engagement projection portion 57, and by simply rotating the lever portion 41 in one direction to engage the engagement groove portion 33 and the engagement projection portion 57, the grounding member Since it can hold | maintain the state which 5 moved below with respect to the attachment member 4, while being able to design with a simple structure, operation is easy.

なお、上記一実施の形態では、第１の操作部材６と第２の操作部材７とは、取付部材４および接地部材５に対して互いに反対側に配置された構成としたが、このような構成には限定されず、取付部材４および接地部材５に対して互いに異なる方向に配置された構成であれば、想定される用途に応じて設計可能である。 In the above embodiment, the first operating member 6 and the second operating member 7 are arranged on the opposite sides with respect to the mounting member 4 and the grounding member 5. The configuration is not limited, and the design can be made according to the intended use as long as the configuration is arranged in different directions with respect to the attachment member 4 and the grounding member 5.

保持手段58は、係合溝部33と係合突起部57とが係合することにより接地部材５が取付部材４に対して下方へ移動した状態を保持する構成としたが、このような構成には限定されず、ばね８の付勢に抗して接地部材５が取付部材４に対して下方へ移動した状態を保持できる構成であればよい。 The holding means 58 is configured to hold the state in which the grounding member 5 has moved downward with respect to the mounting member 4 by the engagement of the engagement groove 33 and the engagement protrusion 57. Is not limited as long as the grounding member 5 can maintain the state in which the grounding member 5 has moved downward relative to the mounting member 4 against the bias of the spring 8.

レバー部41の先端に押圧部42が設けられた構成としたが、このような構成には限定されず、取付部材４および接地部材５の一方側または他方側で操作可能であれば、レバー部41に対する押圧部42の位置は適宜設計できる。 The pressing portion 42 is provided at the tip of the lever portion 41. However, the present invention is not limited to such a configuration, and the lever portion can be operated as long as it can be operated on one side or the other side of the mounting member 4 and the grounding member 5. The position of the pressing portion 42 with respect to 41 can be designed as appropriate.

１リフトロック装置
３被取付物
４取付部材
５接地部材
６第１の操作部材
７第２の操作部材
８付勢手段としてのばね
33 被係合部としての係合溝部
41 レバー部
42 操作部としての押圧部
57 係合部としての係合突起部
58 保持手段 DESCRIPTION OF SYMBOLS 1 Lift lock apparatus 3 To-be-attached object 4 Mounting member 5 Grounding member 6 1st operation member 7 2nd operation member 8 Spring as a biasing means
33 Engaging groove as engaged part
41 Lever part
42 Pressing part as operating part
57 Engagement projection as engagement part
58 Holding means

Claims

A lift lock device that raises and lowers an object to be installed with respect to an installation surface,
A mounting member fixed to the mounted object;
A grounding member attached to the attachment member so as to be movable in the vertical direction;
A biasing member that biases the grounding member in a direction to move upward with respect to the mounting member;
A first operating member for operating movement of the grounding member relative to the mounting member on one side of the mounting member and the grounding member;
A second operating member for operating movement of the grounding member relative to the mounting member on the other side of the mounting member and the grounding member;
Holding means for holding the state in which the grounding member is moved downward with respect to the mounting member against the urging force of the urging member;
The first operating member includes a lever portion rotatably attached to the mounting member and a part of which is in contact with the grounding member, and an operation provided on the lever portion so as to be positioned on one side of the mounting member and the grounding member. And
The second operation member includes a lever portion rotatably attached to the attachment member and a part of which is in contact with the grounding member, and an operation provided on the lever portion so as to be positioned on the other side of the attachment member and the grounding member. And
In a state where the grounding member is moved upward with respect to the mounting member, the grounding member is mounted by pushing down one of the first operating member and the second operating member and rotating the lever portion in one direction. The attached object is separated from the installation surface in a state of moving downward with respect to the member,
The state in which the grounding member has moved downward relative to the mounting member is held by the holding means,
In a state where the grounding member has moved downward with respect to the mounting member, the lever portion of the first operation member and the second operation member pushes in the operation portion in which the lever portion rotates in one direction and is held by the holding means. By releasing the holding, the grounding member is moved upward by the urging force of the urging member so that the attachment object comes into contact with the installation surface.

The holding means has an engaging portion provided in the lever portion and an engaged portion provided in the grounding member, and the lever portion is rotated in one direction to engage the engaging portion and the engaged portion. The lift lock device according to claim 1, wherein the grounding member is held in a state of being moved downward relative to the mounting member by being combined.