KR860002985Y1 - Tipping-up chair - Google Patents

Abstract

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Description

Relief elasticity of chair seat

1 is an exploded perspective view showing the structure of the present invention.

2 is a longitudinal cross-sectional view of the engaged state.

3 is an inner side view showing the operating state of the seat plate.

* Explanation of symbols for main parts of the drawings

10 side plate 11 rotation ring

12, 13, 21, 22: limiting protrusions 14, 15: support protrusions

16, 26: projecting end 16 ', 26': inserting demand

17, 14: connection bolt hole 20: rotation side

23: semi-circular protrusion 24: curved ball

25: spring stopping jaw 30: spring

31, 32: engaging piece 33: spring case

40: support 41: protrusion end

43: support end 44: space part

The present invention relates to a resilient elastic device of the chair seat is configured to stand up automatically when a person sits on the seat plate of the chair. Conventionally, there was a relief device using the spring, but the spring was installed on the connection center shaft to make the spring springy when the seat was rotated, so the rotation was not smooth due to the mutual contact surface, and the surface of the connecting shaft to which the spring contacted was weakened. .

The present invention corrects this drawback, and the central rotation axis and the coupling axis are configured separately, and the rotation axis is coupled to the joint shaft by the bowl axis, and the lower side is coupled by the bolt axis to fix the side plate and the support, and the rotation side of the seat plate sandwiched therebetween Rotate the bay 90 ° so that the outward engaging pieces, which are both ends of the spring inserted between the rotating side and the support, are caught on both sides of the supporting end of the support. When the load is rotated and removed after the rotation, the spring is elastically standing upright.

Restriction protrusions 12, 13 and support protrusions 14, 15 are formed at the inner side of the upper and inner spaces at right angles, respectively, and the protrusions 16 at the center are required to insert a bowl (A). 16 ') is provided in the side plate 10 rotating bow (11) in which the bottom bolt hole 17 is perforated at the bottom thereof, the outer plate is rotated 90 degrees to the limiting projections of the side plate to correspond to the limiting projection of the side plate (21), (22) is protruded, the center of the projection (26) is inserted into the ball insertion request (26 '), the lower portion of the boring hole (24) is inserted into the connecting bolt inserted into the inner semi-circular projection (23) And the rotation side portion 20 of the seat stock holder in which the spring catching jaw 25 of the lower portion is protruded, and the spring 30 having the opposite ends 31 and 32 facing outwardly so that both ends thereof are bent at right angles. 33) and a semi-circular request 41 'into which the semicircular projection of the rotation side part is inserted into the inner central projection end 41, and the connecting bolt hole 42 is formed at the bottom thereof. And the lower end " "It is formed by coupling the support 40 with the space 44 and the support end 43 to which the spring engaging jaw of the rotation side is rotated by the bolt B as a bolt B through the ball hole. ) Is a rubber packing that prevents the impact of the restricting protrusions 22 and 13 when the rotating side of the seat plate is rotated by the spring force.

The present invention having such a structure is installed on the side plate and the mandrel to be rotated to separate the top and bottom of the seat plate to the center rotation side and the bolt coupling shaft, respectively, but the center rotation axis is the bowl insertion request (16) of the central protrusion 16 of the side plate 10 'A' and the shaft of the bowl (A) in the bowl (A) and the rotating part (20) as the semicircular protrusion (23 ') and the semicircular protrusion (41) of the support (40), respectively. The coupling shaft connects the connection bolt hole (7) of the side plate, which is the lower part of the center rotation axis of each of these parts, and the connection bolt hole (42) at the support of the curved hole (24) of the abduction side as a bolt (B). The support is fixed so that only the rotational side is rotated therebetween, and the outwardly engaging pieces 31 and 32 of the spring inserted between the rotational side and the support thus joined are caught on both sides of the lower support end 43 of the support. Since the spring is caught at the lower part when the rotary part rotates downward The outwardly engaging piece (23) of the spring (25) hangs down while giving elasticity to the spring, and when it is released, it is returned to its original state by the elasticity of the spring. The seat plate rotation degree is limited to the limiting projections 12 and 13 of the side plate rotation ring 11 by restricting the limiting projections 21 and 22 of the rotation part, so that accurate rotation of 90 ° is achieved.

Claims (1)

Restriction protrusions 12 and 13 and support protrusions 14 and 15 are formed on the upper inner side, respectively, and the protrusions 14 and 15 are respectively formed on the inner side of the upper side. 16 ') is provided in the rotary ring 11 of the side plate 10, the bottom of the connection bolt hole 17 is bored on the lower side, the outer side of the limiting plate 21 to correspond to the limiting projection of the side plate to rotate the 90 °, (22) is protruded, the center of the projection (26), the hole insertion request (26 ') is provided in the bottom, the lower end of the curved hole (24) for the connection bolt is inserted and the inner semi-circular projection (23) And the rotation side portion 20 of the seat stock holder with the spring catching jaw 25 protruding from the lower end, and the spring 30 and the spring case in which both ends are bent at right angles so that the outward catching pieces 31 and 32 face each other. (33), and a semicircular request (41 ') into which the semicircular projection of the rotating part is inserted into the central protrusion (41) of the inner side is provided, and a connection bolt hole (42) is drilled in the lower portion thereof. And the lower end " Relief and resilience device of the chair seat plate is formed by engaging the support portion 40, which is formed in the form of a spring 44 and the support end 43 to be rotated by the spring engaging jaw of the rotating part through the coupling bolt ball as a bolt B. .