JP2003106036A - Supporting apparatus for member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a supporting apparatus for a member capable of not only moving up and down the member such as a door or the like having a simple configuration and a small exerting force but also of adequately performing balance adjustment between a force given and an exerting force given to a force-applying apparatus when moving a certain member. SOLUTION: The supporting apparatus 3 can support a door 2 in a manner moving it up and down and is equipped with a supporting arm 4 holding the door 2 in a manner moving it up and down by performing a rotating operation, a gas spring 5 for giving a force to the supporting arm 4 by resisting against the gravity when moving the door 2 up and down, and an adjusting mechanism 6 capable of varying a distance between an acting point O of the gas spring 5 acting to a support arm 4 and a falcrum of rotation F of the supporting arm 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support device for a member such as a door that supports a movable member so that the member can be moved well.

[0002]

2. Description of the Related Art For example, there is one in which a vertically movable door is provided at a position for closing an opening provided in a furniture body such as storage furniture, and the opening is opened and closed by vertically moving the door. As a supporting device for supporting the door so as to be vertically movable, a supporting arm for supporting the door so as to be vertically movable by performing a rotating operation, and a force that resists gravity against the door when the door is vertically moved. And a gas spring that imparts

[0003]

However, with such a structure, for example, when opening the opening, the force exerted by the gas spring to easily move the door upward with a small operation force. If you set a large
On the contrary, when closing the opening, it was necessary to move the door downward with a large operating force against the applied force of the gas spring. Thus, in the conventional case, when moving a movable member such as a door, it is difficult to move in the opposite direction if too much emphasis is placed on easy movement in the direction in which the force is applied by the gas spring. On the contrary, it is difficult to adjust the balance between the applied force of the gas spring and the operating force, because it is difficult to move in the opposite direction when the gas spring is easily moved in the direction against the applied force of the gas spring.

Therefore, the present invention provides a supporting device for a member having a simple structure and capable of favorably adjusting the balance between the applied force of a force applying member which is a gas spring and the operating force when moving the member. To aim.

[0005]

That is, the present invention is for movably supporting a member such as a door, and a support for movably supporting the member by performing a rotating operation, Between a force imparting member that imparts a force to the support when moving the member, an action point of the force imparting member that acts on the support when moving the member, and a rotation fulcrum of the support. It is a supporting device for a member including an adjusting mechanism capable of changing a distance.

With such a structure, for example,
When the member is moved in the direction in which the force is applied by the force applying member, the point of action is applied at a position separated from the rotation fulcrum of the support body to resist the force of the force applying member. When moving in the direction, by applying the action point at a position close to the rotation fulcrum of the support, the member can be smoothly moved with a small operating force in any case by the principle of leverage. it can. in this way,
By changing the distance between the action point and the rotation fulcrum by the adjustment mechanism, the balance between the applied force of the force application member and the operation force when moving the member is well adjusted, and the movement of the member is smooth. It becomes possible to do it.

As a preferable member supporting device in the case where the member is opened and closed with respect to the opening, a supporting body for supporting the member so as to be opened and closed with respect to the opening by performing a rotating operation, A force imparting member that imparts a force to the support when the member is opened and closed with respect to the opening, an action point of the force imparting member that acts on the support when the member is opened and closed with respect to the opening, and the support. And an adjusting mechanism capable of changing the distance from the rotation fulcrum.

[0008] A preferable member supporting device in the case where the member can move up and down includes a support for supporting the member up and down by rotating operation, and a support for moving the member up and down. A force applying member that applies a force against gravity to the support, and a distance between an action point of the force applying member that acts on the support when the member is moved up and down and a rotation fulcrum of the support. And a control mechanism that can be changed.

When the member is moved or opened / closed with respect to the opening, in order to allow the member to be moved or opened / closed with a small operation force, the adjusting mechanism has a direction in which the member is given a force by the force giving member. When moving the action point at a position spaced from the rotation fulcrum of the support, when moving the member in a direction against the force of the force applying member, the action point It is desirable that it be operated at a position close to the rotation fulcrum of the support.

When the member is moved up and down, it can be moved with a small operation force when it is moved upward, and it can be moved with a small operation force when it is moved downward. However, when the member is moved upward, the point of action can be applied at a position separated from the rotation fulcrum of the support, and when the member is moved downward, the point of action is It is desirable to be able to act at a position close to the fulcrum of rotation of the body.

In order to perform the above-mentioned action with a simple structure, the adjusting mechanism guides the action point so that the position with respect to the rotation fulcrum can be changed, and the action point moves in the guide portion. It is desirable to provide cam means for guiding to move to a predetermined position.

As a preferred embodiment of the cam means, the cam means is movable in the cam groove and a cam groove for guiding the action point so as to move to a predetermined position in the guide portion. And a guide shaft inserted so that the action point is set on the guide shaft.

As a preferred embodiment of the cam groove, when the cam groove moves the member in the direction in which the force is applied by the force applying member, the action point is moved to a position away from the rotation fulcrum. A first cam groove element for moving,
A second cam groove element for moving the point of action to a position approaching the rotation fulcrum when the member is moved in a direction against the force of the force applying member is exemplified. .

In particular, as a preferred embodiment of the cam groove when moving the member up and down, the cam groove moves the point of action to a position away from the rotation fulcrum when moving the member upward. A first cam groove element for moving the member and a second cam groove element for moving the action point to a position approaching the rotation fulcrum when the member is moved downward. Is mentioned.

Further, in this case, the point of action is allowed to enter from one side of the first cam groove element or the second cam groove element to the other side, but once to the other side. It is desirable to provide a latching means for prohibiting the entering action point from returning to one side.

In a preferred embodiment, the force applying member is a gas spring.

As a concrete embodiment, the member is a door which can be moved up and down.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

In the present embodiment, the case where the member supporting apparatus of the present invention is applied to a storage furniture A as shown in FIG. 1 will be described. Although not specifically shown, the storage furniture A is used by being supported on the upper end side of a pillar standing up from a top plate of a desk or the like, or by being attached to the front surface of the panel. It is used at a relatively high position which takes a mode.

As shown in FIGS. 1 to 3, the storage furniture A is a box-shaped furniture body 1 having an opening on the front side, a closing position P (see FIG. 2) for closing the opening, and the opening. The door 2 provided so as to be movable up and down so as to obtain the opening position Q (see FIG. 3) for opening the door, and the left and right sides of the furniture body 1 are paired so as to support the door 2 so as to be movable vertically. The supporting device 3 is provided.

The supporting device 3 will be described in detail below.

The supporting device 3 is, as shown in FIGS.
A support arm 4 as a support for supporting the door 2 so as to be vertically movable with respect to the furniture main body 1 by performing a rotating operation;
A gas spring 5 that is a force applying member that applies a force against gravity to the support arm 4 when the door 2 is moved up and down.
And the gas spring 5 acting on the support arm 4.
An adjusting mechanism 6 capable of changing the ratio of the leverage applied to the support arm 4 when the door 2 is moved up and down by changing the distance between the action point O of the above and the rotation fulcrum F of the support arm 4. It is equipped with.

In the present embodiment, when the adjusting mechanism 6 moves the door 2 upward, the operating point O can be operated at a position separated from the rotation fulcrum F of the support arm 4. At the same time, when the door 2 is moved downward, the point of action O can be made to act at a position close to the rotation fulcrum F of the support arm 4.
By moving the distance between the rotation fulcrum F and the rotation fulcrum F, the lever ratio is changed so that a small operating force is required not only when the door 2 is moved upward but also when it is moved downward.

The support arm 4 extends from the base portion 41 located on the upper end portion side at the closed position P of the door 2 and the lower end portion side of the base portion 41 so as to form a substantially inverted L shape in a side view. , An arm portion 42 whose front end portion is attached to the lower end portion side of the back surface of the door 2 by an appropriate means. The base portion 41 is attached to a part of the furniture main body 1 via a rotation axis p so as to be rotatable in forward and reverse directions.
The rotation fulcrum F of the support arm 4 is the rotation axis p.
It is almost the same as the axis of.

The gas spring 5 is a well-known one in which a valve (not shown) opens and closes so that the projecting and retracting shaft 52 can expand and contract only when an operating end (not shown) provided at an appropriate position is pushed. In the present embodiment, the thrust shaft 52 is always applied with a force in the extending direction while the operation end is constantly pressed. The gas spring 5 has a base end portion 5a.
A bracket 51 provided on the side is attached to a part of the furniture main body 1 via a rotation axis q so as to be rotatable in forward and reverse directions.
Further, the projecting and retracting shaft 52 can be projected and retracted from the tip portion 5b side to perform the expansion and contraction operation.

The adjusting mechanism 6 guides the action point O so that the position with respect to the rotation fulcrum F can be changed, and the action point O moves in the guide groove 7 to a predetermined position. And a cam means 8 for guiding the guide.

The guide groove 7 is provided in the base portion 41 of the support arm 4, one end portion 7a side of which is located near the rotation fulcrum F of the rotary shaft p, and the other end portion 7b side thereof is formed. It extends so as to be a position separated from the rotation fulcrum F.

The cam means 8 comprises a cam groove 81 provided on the inner surfaces of the left and right side walls of the furniture main body 1, and a guide shaft 82 guided in the cam groove 81.

The cam groove 81 is a concave groove forming three sides of a substantially triangular shape in a side view, and the first cam groove element 811 in which the guide shaft 82 moves when the door 2 moves upward.
And a second cam groove element 812 that moves the guide shaft 82 when the door 2 moves downward, and a third cam groove element that connects the first and second cam groove elements 811 and 812. And 813. These first to third cam groove elements 811 to 813 are provided so as to communicate with each other.

The first cam groove element 811 has a substantially partial arc shape extending in the vertical direction. The guide shaft 82 is provided near the upper end of the first cam groove element 811.
Of the first cam groove element 811 is allowed to enter the second cam groove element 812 from the first cam groove element 811. Latching means 9 is provided to prohibit returning to the element 811 side. The latch means 9 is rotatably attached to the inner side surfaces of the left and right side walls of the furniture body 1 in the forward and reverse directions on the base end 91a side, and at the steady position I as shown in FIGS. The latch pawl 91 is positioned on the opening end side near the upper end side of the first cam groove element 811 on the 91b side.
And a rotation shaft 92 for rotatably attaching the base end portion 91a side of the latch claw 91 to a part of the furniture main body 1. The latch claw 91 is set so as to always return to the steady position I by using gravity after the rotation, but it is held at the steady position I by using a holding means (not shown) or the like. Has been done. When the guide shaft 82 enters the second cam groove element 812 from the first cam groove element 811, the latch means 9 rotates upward to allow passage of the guide shaft 82. Second cam groove element 812
When trying to return to the first cam groove element 811, it does not move from the steady position I and prohibits its entry. That is, when the door 2 is moved upward, the latch means 9 causes the guide shaft 82 to move within the first cam groove element 811 so that the action point O acts on the position separated from the rotation fulcrum F. Are regulated to move. On the other hand, when the door 2 is moved downward, the guide shaft 82 is regulated so as to move in the second cam groove element 812 so that the point of action O acts on the position near the rotation fulcrum F. is doing.

The second cam groove element 812 has a substantially partial arc shape extending in a substantially vertical direction.

The third cam groove element 813 extends substantially in the front-rear direction, and the front end side, which is the side communicating with the first cam groove element 811, communicates with the second cam groove element 812 side. It is slightly inclined so as to be located below the rear end portion which is the side to perform. Further, on the front end side of the third cam groove element 813, when the door 2 is moved upward, the guide shaft 82 is prevented from returning to the inside of the third cam groove element 813. Prohibition means are provided.

The guide shaft 82 is a substantially columnar member provided on the tip end side of the projecting and retracting shaft 52 of the gas spring 5 with its axial direction substantially aligned with the horizontal direction, and one end portion 82 thereof.
After passing through the guide groove 7 of the support arm 4 on the a side, it is movably inserted into the cam groove 81.

Next, the operation when the door 2 is moved up and down will be described.

First, as shown in FIG. 2, when the door 2 is in the closed position P, the guide shaft 82 provided on the tip end side of the projecting and retracting shaft 52 of the gas spring 5 has the third cam groove element. 813 is held at the initial position S1 on the front end side. When the door 2 is moved upward to open the opening from this state, the support arm 4 makes the rotation axis p the rotation fulcrum F as shown in phantom lines in FIG. Rotating around, the guide shaft 82 enters into the first cam groove element 811. When the door 2 is further lifted upward, the guide shaft 82 hits the latch claw 91 as shown in FIG. 6, but the latch claw 91 rotates counterclockwise, that is, upward in a side view, and The guide shaft 82 is allowed to move further upward in the first cam groove element 811. When the door 2 is further moved upward, the guide shaft 82 enters the second cam groove element 812, and the door 2 is in the open position Q as shown in FIGS. 3 and 7. At this time, the latch claw 91 rotates from the position shown by the imaginary line in FIG. 7 to the steady position I shown by the solid line, and the guide shaft 82 is prohibited from returning back into the first cam groove element 811 again. . When the door 2 is moved upward in this way, the point of action O acts at a position separated from the rotation fulcrum F, as shown in FIG. Note that this FIG.
[FIG. 3] sequentially shows movements of the action point O and the rotation fulcrum F when the door 2 is moved upward from the closed position P to the open position Q.

Next, the door 2 is moved from the open position Q to the closed position.
The case of moving to P will be described. That is, when the door 2 is moved downward in order to close the opening from the open position Q as shown in FIGS. 3 and 7, the support arm 4 moves the rotation axis p as shown in FIG. Is rotated counterclockwise in a side view, and the guide shaft 82 moves downward inside the second cam groove element 812. Then, as shown in FIG. 10, the guide shaft 82
However, the door 2 is in the closed position P at a position where the door 2 enters the rear end side of the third cam groove element 813. The gas spring 5 is set so that the initial state is such that the projecting and retracting shaft 52 extends farther from the rotation axis q than the position shown in FIG. Accordingly, the guide shaft 82 moves forward inside the third cam groove element 813 and is held at the initial position S1 shown in FIG. When the door 2 is moved downward in this way, the point of action O is guided to a position close to the rotation fulcrum F, as shown in FIG. It should be noted that FIG. 11 sequentially shows the movement of the action point O and the rotation fulcrum F when the door 2 is moved downward from the open position Q to the closed position P.

With this structure, the adjusting mechanism 6 can change the distance between the action point O and the rotation fulcrum F to change the lever ratio of the support arm 4. It is possible to satisfactorily balance the applied force of the gas spring 5 and the operating force when the 2 is moved up and down. Particularly, in the present embodiment, when the adjustment mechanism 6 moves the door 2 upward, the point of action O can be set to a position separated from the rotation fulcrum F of the support arm 4, and the door 2 When moving down, the point of action O can be located close to the rotation fulcrum F of the support arm 4, so that it can move with a small operating force when moving up, based on the principle of leverage. Of course, even when the door is moved downward, the position of the action point is close to the rotation fulcrum, and gravity is added, so that the door can be moved with a small operation force. Further, the storage furniture A of the present embodiment is difficult to move downward because it is attached to a relatively high position such as a position where a shelf or the like is normally provided in furniture such as a desk or the front surface of a panel. With such a configuration, even when the door is moved downward, the door can be moved with a small operating force due to the movement of the action point and the gravity, and the effect of the present invention becomes more beneficial.

A guide groove 7 for guiding the operating point O so that the adjusting mechanism 6 can change the position with respect to the rotation fulcrum F.
And the cam means 8 for guiding the operating point O so as to move to the predetermined position in the guide groove 7, it is possible to perform the above-described operation with a simple configuration.

A cam groove 8 for guiding the operating point O so that the operating point O moves to a predetermined position in the guide groove 7.
1 and the guide shaft 82 inserted so as to be movable in the cam groove 81, and the action point O is set on the guide shaft 82. Therefore, the action point O is simple in structure. Can be properly guided to a predetermined position.

When the cam groove 81 moves the door 2 upward, the first cam groove element 811 for moving the operating point O to a position separated from the rotation fulcrum F and the door 2 are provided. Since it has a second cam groove element 812 for moving the operating point O to a position approaching the rotation fulcrum F when the operating point O is moved downward, the operating point O is properly located at a predetermined position. It is possible to guide you to.

Further, although the operating point O is allowed to enter from the first cam groove element 811 to the second cam groove element 812, the operating point O which once enters the second cam groove element 812 is allowed. Since the latch means 9 for prohibiting the return to the first cam groove element 811 side is provided, when the door 2 is moved downward, the action point O is always moved to the position approaching the rotation fulcrum F. Can be regulated.

Since the force applying member is the gas spring 5, the door 2 can be moved smoothly when it is moved up and down.

Of course, the structure of the present invention is not limited to the one described above. For example, the vertically movable member is not limited to the furniture door as described above,
It may be of any type as long as it can move up and down. Further, other configurations can be variously modified without departing from the spirit of the present invention.

[0044]

The present invention is carried out with the above-described structure and has the following effects.

That is, according to the present invention, the support member is moved when the member is moved by changing the distance between the point of action of the force applying member acting on the support member and the rotation fulcrum of the support member. Since it is equipped with an adjusting mechanism that can change the ratio of the leverage applied to the member, it is possible to favorably adjust the balance between the applying force of the force applying member and the operating force when moving the member.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention.

FIG. 2 is a side view schematically showing the configuration of the present invention when the door is in the closed position.

FIG. 3 is a side view schematically showing the configuration of the present invention when the door is in the open position.

FIG. 4 is a perspective view showing the main part.

FIG. 5 is an explanatory view of the same operation.

FIG. 6 is an explanatory view of the same operation.

FIG. 7 is an explanatory view of the same operation.

FIG. 8 is an explanatory view of the same operation.

FIG. 9 is an explanatory view of the same operation.

FIG. 10 is an explanatory view of the same operation.

FIG. 11 is an explanatory view of the same operation.

[Explanation of symbols]

2 ... Door 3 ... Supporting device 4 ... Support (support arm) 5: Force applying member (gas spring) 6 ... Adjusting mechanism 7 ... Guiding part (guiding groove) 8 ... Cam means 81 ... Cam groove 811 ... First cam groove element 812 ... Second cam groove element 82 ... Guide shaft 9 ... Latch means F ... Rotation fulcrum O ... point of action

Continued front page    F term (reference) 3J030 EA02 EA21                 3J062 AA45 AB27 AB32 AC07 BA11                       BA22 CG95

Claims (10)

[Claims] 1. A support device for a member for movably supporting a member such as a door, the support for movably supporting the member by performing a rotating operation, and a moving body for moving the member. A force applying member that applies a force to the support, and an adjusting mechanism that can change a distance between an action point of the force applying member that acts on the support when the member is moved and a rotation fulcrum of the support. And a supporting device for a member. 2. A support device for a member for supporting a member such as a door so as to be openable and closable with respect to the opening, and a supporting body for supporting the member so as to be openable and closable with respect to the opening by performing a rotating operation. A force applying member that applies a force to the support when opening and closing the member with respect to the opening; an action point of the force applying member that acts on the support when opening and closing the member with respect to the opening; A support device for a member, comprising: an adjusting mechanism capable of changing a distance between the support and a rotation fulcrum. 3. A support device for a member for supporting a member such as a door so that the member can move up and down, and a support for supporting the member so that the member can move up and down by performing a rotating operation, and the member can move up and down. Between a force applying member that applies a force against gravity to the support when it is moved, and an action point of the force applying member that acts on the support when the member is moved up and down and a rotation fulcrum of the support. And an adjusting mechanism capable of changing the distance of the member. 4. When the adjusting mechanism moves the member in the direction in which the force is applied by the force applying member, the action point acts at a position separated from the rotation fulcrum of the support, and When the member is moved in a direction against the force of the force applying member, the point of action is applied at a position close to the rotation fulcrum of the support body. A device for supporting the described member. 5. A guide part for guiding the action point so that the adjusting mechanism can change the position with respect to the rotation fulcrum, and a cam for guiding the action point to move to a predetermined position in the guide part. 5. A member supporting device according to claim 1, 2, 3 or 4, further comprising: 6. A cam means is provided with a cam groove for guiding the action point so as to move to a predetermined position in the guide portion, and a guide shaft inserted so as to be movable in the cam groove. The support device for a member according to claim 5, wherein the action point is set on the guide shaft. 7. A first groove for moving the action point to a position separated from the rotation fulcrum when the cam groove moves the member in the direction in which the force is applied by the force applying member.
Cam groove element and a second cam groove element for moving the point of action to a position approaching the rotation fulcrum when the member is moved in the direction against the force of the force applying member. 7. The member supporting device according to claim 6, wherein: 8. The operating point is allowed to enter from one side of the first cam groove element or the second cam groove element to the other side, but once the operating point enters the other side. 8. The member supporting device according to claim 7, further comprising latching means for prohibiting returning to one side. 9. The force applying member is a gas spring, and the force applying member is a gas spring.
A device for supporting the described member. 10. The member is a door that can be moved up and down, 1, 2, 3, 4, 5, 6, 7, 8 or 9.
A device for supporting the described member.