furniture

Abstract

To prevent, in a tall chair having a footrest stand used for a tall table, damage to both the chair and table when the chair is suddenly stored in the tall table and the leg support pillar crashes against a horizontal bar of the tall table while maintaining stability of the body of a user in a use state.SOLUTION: A footrest stand 11 is fixed to a leg support pillar 2 of a leg device 1. A horizontal bar 12 of a tall table 9 is positioned at a slightly lower position than the footrest stand 11. A buffer ring 23 of synthetic resin is attached directly below the footrest stand 11 so as to abut against the horizontal bar 12. Even when a chair is suddenly stored in the tall table 9 and the leg device 1 abuts against the horizontal bar 12, a damage therebetween can be prevented and an impact noise can be reduced. Since the footrest stand 11 is positioned on the horizontal bar 12, even when the footrest stand 11 and the horizontal bar 12 are vertically superposed in a use state of the chair, a user can apply weight to the footrest stand 11 and thus excellent stability of the chair can be achieved.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a chair suitable for use at a high table or high counter that is at a height where a person can stand, and to a piece of furniture having the chair. [Background technology]

[0002] In recent years, the use of high tables has become more common in offices as a way of diversifying working styles. High tables are, for example, 900 to 1200 mm high, and can be used by people standing on the floor or sitting on a high chair with a raised seat.

[0003] Using a high table while standing on the floor has the advantage of improving work efficiency through improving the worker's health by improving blood circulation and preventing deterioration of posture, but whether the work is done while standing or sitting on a high chair, using a high table has the advantage of improving workability by raising the head position and widening the field of vision.

[0004] A normal table (desk) is around 700mm high, and a person sits on the chair with their feet on the floor, but the high chairs used for high tables have seats higher than normal chairs, so the feet of a person sitting on them do not reach the floor. Therefore, ring-shaped or disc-shaped footrests are attached to the leg supports.

[0005] An example is disclosed in Patent Document 1, in which cushioning material is attached to the outer periphery of the footrest to prevent the outer periphery from being damaged during transportation, etc., or to prevent the footrest from hitting a person and causing injury when the chair is moved.

[0006] On the other hand, footrests have traditionally been provided in children's chairs. As an example, Patent Document 2 discloses that in a chair where a footrest is attached to the leg support in a height-adjustable manner, the height of the footrest is maintained by attaching a number of ring bodies to the leg support and supporting the group of ring bodies at the leg base. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Utility Model Registration No. 3125837 [Patent Document 2] JP 2010-279413 A Summary of the Invention [Problem to be solved by the invention]

[0008] Now, in the case of a high table, a horizontal beam is placed under the table so that this beam can function as a footrest on which a person can place one foot when working while standing, or as reinforcement.

[0009] Furthermore, in the past, no particular attention was paid to the relationship between the cross member and the chair, and as a result, when the chair was stored inside the high table, there was a risk that the footrest would hit the cross member or the leg support would hit the cross member, which could result in damage to the cross member or the footrest or leg support.

[0010] In this regard, if the height of the cross member and the footrest are the same, this can be addressed by providing cushioning material around the outer periphery of the footrest, as in Patent Document 1, but in this case there is the problem that the chair cannot be stored deep inside the high table.

[0011] On the other hand, if the cross member is positioned higher than the footrest, when the seat is partially stored inside the high table, the seated person's feet will rest on the cross member and they will not be able to put their weight on the footrest, which may compromise the stability of the chair.

[0012] On the other hand, if the cross member is positioned below the footrest, the chair can be stored deep inside the high table, and even if the footrest and the cross member overlap in a plan view when the chair is in use, a person can place their feet on the footrest, which has the advantage that the stability of the chair can be maintained by placing their body weight on the footrest.

[0013] If the cross member is located below the footrest, it is possible to use the ring body of Patent Document 2 as a cushioning material; however, in Patent Document 2, the group of rings is fitted into the entire leg support below the footrest, which may spoil the aesthetic appearance.

[0014] The present invention has been made to improve this current situation. [Means for solving the problem]

[0020] The present invention teeth, "It consists of a high table that is about 900mm or higher so that a person can work upright, and a chair (high chair) that can be used while sitting on the high table." This is a combination furniture. "The chair is equipped with a leg device having a leg support erected from the center of a leg base with casters, a seat supported by the upper end of the leg support, and a footrest fixed to a mid-height portion of the leg support for a seated person to place their feet on, The high table includes a horizontal member that is positioned below the footrest when the chair is moved toward the inside of the table, A buffer ring is disposed concentrically with the leg support directly below the footrest of the chair to prevent mutual damage when it collides with the cross member of the high table, and the outer surface of the leg support is exposed between the buffer ring and the leg base. It has the following characteristics: may be in the form of a stay or a plate. Effect of the Invention

[0021] In the present invention, a chair Cross member for high table Even if you move it vigorously towards the Cross member It does not come into direct contact with the Cross member Therefore, Cross member This prevents the leg supports from being scratched or the paint from peeling off, and also reduces impact noise. Cross member Because it is separated vertically Chair There is no problem with storing the child deep inside the high table. Furthermore, the shock-absorbing ring is located directly below the footrest and is difficult to see from the outside, so the aesthetic appearance is not impaired.

[0022] Furthermore, the footrest is horizontal. Material Since the footrest is located on the top, the footrest is horizontal when the chair is in use. Materials and Even when the chairs are stacked on top of each other, the feet can be placed on the footrest, so the weight of the chair can be placed on the footrest. of Can be stabilized do.

[0023] In claim 1, it is possible to attach a shock absorbing ring to the leg support, but it is not preferable to apply shock to the leg support via the shock absorbing ring. In particular, if the leg support is a gas cylinder, it is advisable to avoid applying shock to the leg support in order to ensure the accuracy of operation.

[0024] feetProviding a shock-absorbing ring on the tube of the stand is advantageous in terms of protecting the leg support, since it prevents shock from being applied directly to the leg support. Also, when a shock-absorbing ring is attached to the leg support, since the leg support is generally a commercially available product, it is necessary to weld the support member to attach the shock-absorbing ring, which is time-consuming, but since the footrest is a dedicated product and can be processed in various ways, it is also easy to process the material.

[0025] When attaching the buffer ring to the tube of the footrest, it is possible to fix it with a screw, for example. Person in charge By using a mounting method that uses a dowel, the buffer ring can be easily mounted with a single touch.

[0026] If the footrest rotates relative to the leg support, the seated person's body becomes unstable, which is undesirable. In an embodiment By adopting this configuration, the footrest is fixed to the leg support by the headless bolt so that it cannot rotate, thereby ensuring the stability of the body of the seated person. Embodiment In the , the shock-absorbing ring is attached using the tapped hole for supporting the footrest on the leg support, which simplifies the structure. Another advantage is that even if the headless bolt becomes loose, the engaging claw can prevent the headless bolt from coming off.

[0027] And, in the present invention, The cross member of the high table can be made lower than the footrest of the chair, and a shock-absorbing ring can be provided to prevent damage to each other, improving the commercial value of both the high table and the chair. In this case, a shock-absorbing material such as a resin edge can be provided on the front of the cross member. Ha As a means of solving the problems related to tables and chairs, it is also possible to provide a cushioning material only to the cross members, and this configuration can be an independent invention. In this case, the cushioning material of the cross members can provide a cushioning effect when a person puts their foot on it, and also has the effect of preventing shoes from slipping down. [Brief description of the drawings]

[0028] [Figure 1]1A is a perspective view of a chair according to an embodiment, FIG. 1B is a perspective view of a chair according to an embodiment, and FIG. 1C is a side view of the chair. [Diagram 2] 1A is a perspective view of the main part seen from below, and FIG. [Diagram 3] FIG. 1B is a perspective view of the buffer ring as viewed from above, and FIG. 1C is a perspective view of the buffer ring as viewed from below. [Figure 4] 4 is a cross-sectional view of the main part as seen from the IV-IV direction in FIG. 3(B). [Diagram 5] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] (1).Basic structure Next, an embodiment of the present invention will be described with reference to the drawings. As shown in Fig. 1, the chair comprises a leg device 1 with casters, a frame-shaped seat support 3 provided at the upper end of a leg support 2 constituting the leg device 1, and a seat 4 and a backrest 5 supported by the seat support 3.

[0030] The leg device 1 is equipped with a leg base 6 having multiple branch rods extending radially, with casters attached to the tip of each branch rod, and a leg support 2 erected in the center of the leg base 6. The leg support 2 is composed of a gas cylinder in which an outer tube 7 and an inner tube 8 are fitted together so as to be able to expand and contract. The outer tube 7 is fixed to the leg base 6, and a seat support 3 is fitted onto the upper end of the inner tube 8.

[0031] The chair is used for high table 9 where a person can stand and work, but since the top plate 10 of high table 9 is about 900 to 1200 mm high and the feet of the person sitting on it do not reach the floor, a disk-shaped footrest 11 for the feet of the person sitting on is attached to the outer tube 7 of the gas cylinder. It goes without saying that the height of seat 4 can be adjusted by operating lever 8a shown in Figure 1(B) to unlock the gas cylinder.

[0032] In addition, on the high table 9, a plate-shaped cross member 12, on which a person can place one foot when standing to work and which also functions as a reinforcement member, is arranged in a long orientation in the width direction. The cross member 12 is slightly lower in height than the footrest 11 of the chair, and is arranged slightly further back than the tabletop 10. The tabletop 10 is supported by left and right legs, and the cross member 12 is also mounted on the left and right legs. Some high tables 9 have a tabletop 10 whose height can be adjusted, but even in this case, the height of the cross member 12 is constant.

[0033] As described above, the footrest 11 is formed in a disk shape, and the upper surface is formed with a cross-shaped reinforcing ridge 13. However, the reinforcing ridge 13 is gently inclined so that it becomes lower as it moves away from the leg support 2, so that the footrest 11 has a substantially triangular shape with a horizontal lower side in a side view. 11 units Even though the horizontal member 12 of the high table 9 is thin, the strength can be ensured by the reinforcing protrusions 13. of The upper surface of the footrest 11 and the upper surface of the footrest 11 can be set at a similar height. And, The footrest 11 has four window holes 14 in the center thereof, each of which is sandwiched between adjacent reinforcing ridges 13.

[0034] As clearly shown in Figure 4, the footrest 11 is formed with a cylindrical portion 15 that protrudes downward, and the cylindrical portion 15 is fitted into the outer tube 7 of the gas cylinder via a bushing 16 made of synthetic resin. The cylindrical portion 15 and the bushing 16 are supported so as not to be able to fall by a support ring 17 that is fixed to the outer tube 7 of the gas cylinder by welding. In addition, an outward flange 18 is formed at the upper end of the bushing 16, and this flange 18 is fitted into a step portion 19 formed on the footrest 11.

[0035] Four tapped holes 20 are formed in the lower part of the tube part 15 of the footrest 11, spaced 90° apart in the circumferential direction, and headless bolts (flat screws) 21 screwed into the tapped holes 20 are braced against the outer tube 7. Therefore, the bushing 16 has four relief holes 22 through which the headless bolts 21 pass. Note that the number of tapped holes 20 and headless bolts 21 is not limited to four, and the number and positions can be set arbitrarily, such as providing them in two locations spaced 180° apart in the circumferential direction, or providing them in three locations spaced 120° apart.

[0036] (2) Buffer ring A shock-absorbing ring 23 made of synthetic resin is fitted from below into the cylindrical portion 15 of the footrest 11 at a height position corresponding to the front surface of the cross member 12 of the high table 9. The outer diameter of the shock-absorbing ring 23 is smaller than that of the footrest 11, and a stepped-down small-diameter portion 24 is formed in the cylindrical portion 15. In the external fitting state Therefore, the outer circumferential surface of the buffer ring 23 is integrally continuous with the cylindrical portion 15. The entire outer surface is exposed. In addition, the buffer ring 23 will not move upward and become detached.

[0037] In addition, the buffer ring 23 protrudes downwardly beyond the tubular portion 15, and at its lower part, an inward flange 25 is formed which abuts or is close to the outer peripheral surface of the support ring 17 provided on the leg device 1, and below the inward flange 25, a number of reinforcing ribs 26 are formed which are connected to the inward flange 25.

[0038] The buffer ring 23 is formed with four engagement claws 27 that engage with the tapped holes 20 of the tube portion 15 of the footrest 11. The engagement claws 27 are formed in a hollowed-out state by forming slits in the buffer ring 23, and have inward hook portions 27a formed at the upper ends. The upper surfaces of the hook portions 27a are downwardly inclined, while notches 28 for guiding the engagement claws 27 are formed in the lower surface of the tube portion 15 of the footrest 11 below each of the tapped holes 20. As shown in FIG. 4, the notches 28 are formed with inclined guide surfaces 28a that stabilize the upward movement of the engagement claws 27.

[0039] In assembling the chair, the buffer ring 23 is fitted in advance into the outer cylinder 7 of the leg support 2, and the footrest 11 and the bush 16 are fitted from above into the outer cylinder 7 of the leg device 1 in a mutually fitted or separated state. When fitting the footrest 11 and the bush 16 separately, the footrest 11 is fitted first, and then the bush 16 is fitted.

[0040] Then, with the footrest 11 and bushing 16 supported by the support ring 17 so that they cannot fall off, headless bolts 21 are screwed into each tapped hole 20 from the outside to fix the footrest 11 to the outer cylinder 7 of the leg support 2 so that it cannot rotate, and then the buffer ring 23 is moved upward and fitted into the cylinder portion 15 of the footrest 11, and each engagement claw 27 is engaged with each tapped hole 20. In other words, each engagement claw 27 is deformed by retracting outward once and then deforms back due to elastic force so that the hook portion fits into the tapped hole 20, thereby holding the buffer ring 23 so that it cannot fall off.

[0041] And because the buffer ring 23 is at the same height as the cross member 12 of the high table 9, even if a chair is swiftly stored inside the high table 9 as shown in Figures 4 and 5, the leg support 2 will not directly hit the cross member 12, and the shock is absorbed by the buffer ring 23 made of synthetic resin. This prevents the cross member 12 from being damaged and reduces the impact noise. It is preferable to attach a protective material such as rubber to the front of the cross member 12 by adhesive or the like (the protective material may be configured to cover the upper surface of the cross member 12 as well).

[0042] In the above embodiment, the buffer ring 23 is engaged with the tubular portion 15 using the engagement claws 27, but it is also possible to fix the inward flange 25 to the underside of the tubular portion 15 with screws. Alternatively, the buffer ring 23 can be made of rubber and attached to the tubular portion 15 or the leg support 2 using its elasticity.

[0043] The buffer ring 23 can also be attached to the tube portion 15 of the footrest 11 or the outer tube 7 of the leg support 2 in a height-adjustable manner. The buffer ring 23 can also be configured in two parts and the two parts can be overlapped to form a ring body. In this case, the buffer ring 23 does not need to be fitted into the leg support in advance. When the support ring 17 is fixed to the leg support 2 as in the embodiment, the buffer ring 23 can also be locked to the support ring 17. [Industrial Applicability]

[0044] The present invention can be embodied in a chair for a high table, and therefore has industrial applicability. [Explanation of symbols]

[0045] 1 leg device 2 leg support (gas cylinder) 4 seats 7. Outer tube of leg support 8. Inner tube of leg support 9 High Table 10. Top plate 11 Footrest 12 Cross member of high table 15 Cylinder part 16. Bush 20 Tapped holes 21 Headless bolt (flat head) 22 Relief hole 23 Buffer ring 27 Engagement Claw

Claims

[Claim 1] The apparatus comprises a high table having a height of about 900 mm or more so that a person can work while standing upright, and a chair that can be used while sitting on the high table, The chair is provided with a leg device having a leg support erected from the center of a leg base with casters, a seat supported by the upper end of the leg support, and a footrest fixed to an intermediate height portion of the leg support for a seated person to place their feet on, The high table includes a horizontal member that is positioned below the footrest when the chair is moved toward the inside of the table, A buffer ring is disposed concentrically with the leg support directly below the footrest of the chair to prevent mutual damage when the footrest collides with the cross member of the high table, and the outer surface of the leg support is exposed between the buffer ring and the leg base. furniture.

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