JP4017501B2 - Automatic folding chair with elbow-mounted cup holder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic folding chair that is provided in a theater or the like, and the seat automatically jumps when a seated person leaves the seat, and more particularly to an automatic folding chair with an elbow-mounted cup holder.
[0002]
[Prior art]
As the automatic folding chair in which the seat automatically jumps when the seated person leaves the seat, the one used in the rollback chair stand type 0 that has been manufactured and sold by the applicant of the present application is widely known (for example, Non-Patent Document 1).
[0003]
This automatic folding chair has a seat pivoted so as to be able to jump up and down on the left and right columns, and a lower end portion on both sides pivoted on the rear ends of both sides of the seat and a link member on the left and right columns. The spine is connected to the seat via the link member and the spine, and the elbow jumping up in conjunction with the springing up of the seat.
[0004]
In this automatic folding chair, when a seated person stands up and the seat can jump up, the back that is connected to the support post via the link member and tilted backward is lowered by its own weight, but the back of the link member is lowered. Tilt to stand upright and push down the rear end of the seat, so that the seat jumps up. The elbow is urged by the elastic member so as to come into contact with the link member that tilts in conjunction with the springing up of the seat, so that the elbow jumps up in conjunction with the springing up of the seat.
[0005]
[Non-Patent Document 1]
“Public Seating Products Catalog”, Kotobuki Co., Ltd., May 1, 1996, No. 149, p. 117
[0006]
[Problems to be solved by the invention]
By the way, about the said conventional automatic folding chair, it is strongly desired to provide a cup holder in the elbow for the convenience of a seated person.
[0007]
However, in the above-mentioned conventional automatic folding chair, the elbow jumps up in conjunction with the springing up of the seat. When the seated person stood up and the seat jumped up, the cup holder jumped up with the elbow and the cup placed in the cup holder jumped up, and the drink in the cup spilled.
[0008]
[Means for solving the problems and their functions and effects]
SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic folding chair that advantageously solves the above-mentioned problems, and the automatic folding chair with an elbow-mounted cup holder according to the present invention is a seat that is pivotally supported so as to be able to jump up. And an elbow that is coupled to the seat and jumps in conjunction with the springing of the seat, and a cup holder attached to the elbow, and is supported by the elbow and coupled to the support column. In addition, a protruding member is provided which projects inward of the cup holder in conjunction with the elbow jumping up and regulates the elbow jumping up when the projection is restricted.
[0009]
In such an automatic folding chair with an elbow-mounted cup holder, the elbow is lowered to a substantially horizontal use position in conjunction with the seat being lowered to the sitting position, and the cup holder attached to the elbow When the cup is placed on the cup, even if the protruding member tries to protrude inside the cup holder, the cup restricts the protrusion of the protruding member. And by this protrusion restriction | limiting, a protrusion member restrict | limits the elbow jumping up.
[0010]
Therefore, according to the automatic folding chair with an elbow-mounted cup holder of the present invention, even when a seated person stands up when a cup containing a drink is placed in the cup holder mounted on the elbow, the cup protrudes from the protruding member. Since the protrusion member restricts the jumping of the elbow by the protrusion restriction, it is possible to prevent the cup holder from jumping up together with the elbow and spilling the drink in the cup placed in the cup holder.
[0011]
In the present invention, the projecting member may restrict the springing of the seat as well as the elbow of the elbow, but the elbow is connected to the seat and is tilted in conjunction with the springing of the seat. The protrusion member may be biased by an elastic member so as to allow the link member to tilt by directly restricting the jumping of the elbow. Since the link member can tilt even if the elbow bounce is restricted, the seat can bounce, so the force that regulates the protrusion of the protruding member only needs to be limited to restrict the bounce of the elbow, so the cup is made of paper or thin Even in the case of a relatively weak material such as plastic, the elbow bounce can be sufficiently restricted.
[0012]
And in this invention, the said protrusion member may be connected with the said support | pillar via the said elastic member, and if it carries out like this, the connection of the protrusion member to a support | pillar can be performed easily and cheaply. .
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 (a) and 1 (b) are a side view and a front view showing an embodiment of an automatic folding chair with an elbow-mounted cup holder of the present invention in a state in which the seat is flipped up, FIG. 2 (a), (B) and (c) are a side view, a front view and a plan view showing an automatic folding chair with an elbow-mounted cup holder of the above embodiment in a sitting state, and FIGS. 3 (a) and (b) are the above embodiments. 4A and 4B are side sectional views showing the elbow of the automatic folding chair with an elbow mounting type cup holder in a state where the elbow is raised up and a perspective view seen from the direction of the arrow A. FIGS. It is the side part sectional view which shows the elbow of an automatic folding chair with a type | mold cup holder in use condition, and the perspective view seen from the arrow B direction.
[0014]
The automatic folding chair with an elbow-mounted cup holder of this embodiment can be used alone or as a connecting chair for a moving seat, etc. As shown in FIGS. 1 and 2, the axis extending in the left-right direction of the chair The seat 2 is pivotally supported by the left and right support columns 1 so as to be pivotable around C, and the lower end portions of both sides are pivotally supported by the rear ends of both sides of the seat 2 and the left and right support columns. The back 4 connected to the middle part of both sides via the link member 3, and the elbow 5 connected to the seat 2 via the link member 3 and the back 4 and jumping up in conjunction with the springing up of the seat 2. Be prepared.
[0015]
As shown in FIGS. 3 and 4, the elbow 5 is pivotally supported on the upper end portion of the support column 1 via a horizontal shaft 6, and the rear side of the upper end portion of the support column 1 (FIG. 3). , 4 is on the right side), one end of a coil spring 7 as an elastic member is screwed, and the other end of the coil spring 7 comes into contact with the back surface of the elbow 5 so that the elbow 5 is illustrated by the elastic force of the coil spring 7. In 3 and 4, it always energizes so that it may rotate clockwise. A rubber stopper 8 is provided on the back surface of the elbow 5, and the rotation of the elbow 5 due to the elastic force of the coil spring 7 is restricted by the contact of the stopper 8 with the upper end of the link member 3. .
[0016]
Further, a cup holder 9 formed by bending a steel bar into a ring shape, for example, is attached and fixed to the elbow 5 here so as to protrude forward from the front end portion of the elbow 5. A protruding member 10 formed by bending the character is supported so as to be slidable in the front-rear direction of the elbow 5, and the other end of the coil spring 7 is attached to the linear rear end 10 a of the protruding member 10. Thus, the protruding member 10 is connected to the upper end portion of the column 1 via the coil spring 7.
[0017]
Therefore, when the elbow 5 jumps up to the jumping position shown in FIG. 3 (a), the tip 10b of the protruding member 10 that goes out from the tip of the elbow 5 and bends shortly as shown in FIG. 3 (b). When the elbow 5 descends to a substantially horizontal use position shown in FIG. 4 (a), the head moves forward to the projecting position projecting inward of the cup holder 9 to the vicinity of the center of the ring portion 9a of the cup holder 9 as shown in FIG. 4 (b). As shown, the cup holder 9 retreats to the retreat position aligned with the ring portion 9a in the circumferential direction. In other words, the swinging of the elbow 5 between the jumping position and the use position and the forward / backward movement of the projecting member 10 are mechanically linked, and when the projecting member 10 is moved forward / backward, the elbow 5 springs up. Swing between position and use position.
[0018]
In the automatic folding chair of this embodiment, when a person is seated on the seat 2, as shown in FIG. 2, the back 4 connected to the column 1 via the link member 3 is the rear end of the seat 2. When the seat member rises and the seat 2 can jump up as shown in FIG. 1, the link member 3 is lowered with its own weight as shown in FIG. 3 is tilted so that the back is lowered and stands substantially vertically and the rear end of the seat 2 is pushed down, so that the seat 2 jumps up.
[0019]
The elbow 5 is urged by the coil spring 7 so as to come into contact with the upper end of the link member 3 from above. Therefore, when a person is seated on the seat 2, the elbow 5 is positioned substantially horizontally as shown in FIG. When the seated person stands up, when the cup is not placed in the ring portion 9a of the cup holder 9, the seat 2 jumps up as shown by the solid line in FIG.
[0020]
On the other hand, while a person is seated on the seat 2 and the elbow 5 and the ring portion 9a of the cup holder 9 are positioned substantially horizontally as shown in FIG. 2, the cup 11 is placed in the ring portion 9a of the cup holder 9. When the seated person stands up in this state, the link member 3 tilts backward as shown by the phantom line in FIG. 4A in conjunction with the jumping up of the seat 2, but the tip 10b of the projecting member 10 is shown in FIG. As shown in FIG. 4 (a), the advancement is prevented by the cup 11, and the retracted position shown in FIG. 4 (b) is stopped. By interlocking, the projecting member 10 resists the urging force of the coil spring 7 and keeps the elbow 5 away from the link member 3 as shown in FIG.
[0021]
Therefore, according to the automatic folding chair of this embodiment, when the cup 11 is placed in the ring portion 9a of the cup holder 9, even if the seated person stands up and the seat 2 jumps up, the elbow 5 regulates the jumping up. Therefore, it is possible to prevent the cup holder 9 from jumping up with the elbow 5 and spilling the drink in the cup 11 placed in the cup holder 9.
[0022]
Moreover, according to the automatic folding chair of this embodiment, the elbow 5 is urged by the coil spring 7 so as to come into contact with the link member 3 that is connected to the seat 2 and tilts in conjunction with the springing of the seat 2 from above. Since the protruding member 10 directly restricts the jumping of the elbow 5 by the mechanical interlock as described above, the tilting of the link member 3 is allowed. Therefore, even if the protruding member 10 restricts the jumping of the elbow 5, the link member 3 tilts. Since the seat 2 can jump up, the force that regulates the projection of the projecting member 10 can be reduced only by regulating the jump of the elbow 5, so the cup 11 is relatively weak such as paper or thin plastic. However, the jumping of the elbow 5 can be sufficiently restricted.
[0023]
Further, according to the automatic folding chair of this embodiment, since the protruding member 10 is connected to the support column 1 via the coil spring 7, the connection structure of the protruding member 10 to the support column 1 is used as a dedicated member such as a connection member. It can be configured easily and inexpensively without using the.
[0024]
Although the present invention has been described based on the illustrated examples, the present invention is not limited to the above-described example. For example, the cup holder may be formed integrally with the elbow, and the protruding member may be a tongue-shaped piece. The projecting member may be connected to the support through a dedicated member such as a connection member, and the spine may be fixed to the support. Further, when a strong cup is used, the elbow may be mechanically interlocked with the seat (that is, when the elbow is stopped, the elbow is stopped).
[Brief description of the drawings]
FIGS. 1A and 1B are a side view and a front view, respectively, showing an embodiment of an automatic folding chair with an elbow-mounted cup holder according to the present invention in a state in which the seat is flipped up.
FIGS. 2A, 2B, and 2C are a side view, a front view, and a plan view showing an automatic folding chair with an elbow-mounted cup holder of the above embodiment in a sitting state in which a seated person is omitted. .
FIGS. 3A and 3B are a side sectional view showing a state where the elbow of the automatic folding chair with an elbow mounting type cup holder of the above embodiment is flipped up, and a perspective view seen from the direction of arrow A; FIGS. .
FIGS. 4A and 4B are a side sectional view showing the elbow of the automatic folding chair with an elbow mounting type cup holder of the above embodiment in use and a perspective view seen from the direction of arrow B. FIGS.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Seat 3 Link member 4 Back 5 Elbow 6 Shaft 7 Coil spring 8 Stopper 9 Cup holder 9a Ring part 10 Protruding member 10a Rear end part 10b Front end part 11 Cup

Claims (3)

A seat that is pivotally supported so as to be able to jump up to the column,
An elbow that is connected to the seat and springs up in conjunction with the springing up of the seat;
A cup holder attached to the elbow;
In an automatic folding chair comprising
Providing a protruding member that is supported by the elbow and that is coupled to the column and projects inward of the cup holder in conjunction with the elbow bounce, and restricts the elbow bounce when the projection is restricted. Features an automatic folding chair with an elbow-mounted cup holder. The elbow is biased by an elastic member so as to come into contact with the link member that is connected to the seat and tilts in conjunction with the springing of the seat,
2. The automatic folding chair with an elbow-mounted cup holder according to claim 1, wherein the protruding member allows the link member to tilt by directly restricting the jumping of the elbow. 3. 3. The automatic folding chair with an elbow-mounted cup holder according to claim 2, wherein the protruding member is connected to the support through the elastic member.

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