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Chair counterbalanced by mortar

A mortar and seat technology, used in theaters, auditoriums or similar places for chairs, chairs, applications, etc., can solve the problems of complex surface treatment of metal ingots, affecting the overall appearance of the seat, and the color of the plastic seat cannot be unified. , to achieve the effect of small flipping force, easy flipping and simple production

Active Publication Date: 2010-07-21
ZHEJIANG DAFENG SPORTS EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the torsion spring of the seat in the above-mentioned prior art has a large turn-over force, a fast bounce speed, relatively loud noise generated by turn-over, and the torsion spring will appear twisting, breaking and other faults during turn-over. The service life is short, or it is difficult to cooperate with the hollow plastic seat caused by the counterweight of the metal casting, the metal parts are exposed outside the bottom of the plastic seat, the gap is uneven, the surface treatment of the metal ingot is complicated, and the color of the plastic seat is not uniform. The degree of fading of plastic and metal on outdoor venues is different. Over time, it will seriously affect the overall appearance of the seat. In addition, the use of metal cast weights instead of torsion springs has disadvantages such as higher product costs. An alternative configuration is provided. Heavy method: Mortar counterweight to achieve the effect of flipping. Its characteristics are: small turning force, light sound, long service life, no failure, simple materials, and low cost

Method used

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  • Chair counterbalanced by mortar
  • Chair counterbalanced by mortar
  • Chair counterbalanced by mortar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] like Figure 3(A) to Figure 3(E) Shown, a kind of seat with mortar counterweight, is the seat with mortar counterweight of hollow plastic, comprises seat seat 1, rotating shaft 2, left connecting plate 3, right connecting plate 4, mortar counterweight 5, The rotating shaft 2 runs through the plastic seat transversely, at the bottom of about 1 / 3 of the length of the plastic seat, and the left connecting plate 3 and the right connecting plate 4 respectively pass through both ends of the rotating shaft 2 and are fixedly connected with both sides of the plastic seat 1 , the rotating shaft 2 is rotationally connected with the plastic seat and the left and right connecting plates, and the mortar counterweight 5 is solidified mortar, located at the bottom of the hollow plastic seat 1, accounting for about 1 / 6 of the height of the seat.

[0040] The freshly mixed wet mortar is injected into the bottom of the plastic seat through the notch of the shaft hole of the plastic seat by...

Embodiment 2

[0042] According to the seat structure of Example 1, cut out shaft holes according to the positioning on both sides of the hollow plastic seat, add 200 kg of water according to 30 kg of cement, 70 kg of coarse sand, and 1 kg of glass fiber, and take 2.1+0.1 kg of the mortar that has been stirred and put it into a measuring cup Put it into the hopper in a certain amount, inject it into the bottom of the plastic seat through an electric screw grouting machine, about 1 / 6 of the height of the plastic seat, and pre-embed the screw to connect with the plastic case, and then put it vertically in a fixed position to dry, about 20 Hours later, the mortar changes from slurry to solid, achieving the effect of counterweight.

[0043] Pass the prepared shaft through the shaft hole of the plastic seat that has been successfully counterweighted, and then pass the left and right connecting plates through the shaft to connect with the plastic seat, and the assembly of the entire seat assembly i...

Embodiment 3-11

[0050] The raw material formula of described mortar counterweight block is as follows according to weight (unit: kg); Inject the bottom of plastic seat, the ratio of the height h formed by mortar counterweight block and the height of plastic seat is shown in the table below:

[0051]

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PUM

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Abstract

The invention discloses a chair counterbalanced by mortar, which is a hollow chair counterbalanced by mortar and relates to the field of chair equipment. the chair of the invention comprises a chair seat shell, a rotating shaft and 2 connecting plates, wherein the rotating shaft transversely penetrates in a position 1 / 3 of the length of a plastic seat near to the lower part of the chair seat shell; the 2 connecting plates is arranged at the two ends of the rotating shaft in a penetrated way and are positioned at two sides of the chair seat shell; the rotating shaft is rotatably connected with the chair seat shell and the 2 connecting plates, the chair seat shell comprises a bottom part of the chair seat shell; solidified mortar is in the bottom part of the chair seat shell, wherein the raw material formula of the mortar counterbalancing weight comprises the following components in mass percent: 25-35% of cement, 64-74% of coarse sand and 0.5-1.5% of glass fiber; and the height of the mortar counterbalancing weight is 1 / 5-1 / 7 of the height of the chair seat shell. Compared with the prior art, the invention has the beneficial effects of small turning and putting force, light sound, elegant appearance, simple manufacturing, durable use, fastness of surface and long service life, the material requested is the cheap mortar, the production cost is reduced, and an internal turning and putting mechanism can not be damaged due to frequent use.

Description

technical field [0001] The invention relates to a seat with mortar counterweight, in particular to a hollow seat with mortar counterweight for large stadiums and large studios. Background technique [0002] Large-scale stadiums are often used to hold various important sports events such as football and basketball; large studios are also often used to hold important performances and record large-scale programs, and have high requirements on the appearance and quality of the plastic folding seats used. As shown in Figure 1 (A), (B), (C) and (D), the original hollow seat is turned over by a torsion spring mechanism. The sitting feeling is comfortable, but its disadvantage is that a shaft runs through 1 / 3 of the length of the plastic seat, and a torsion spring is sleeved on the shaft, and the seat is turned over by the torsion spring. The torsion spring of the seat has a large turning force and a fast bounce speed, and the noise generated by turning over is relatively loud, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47C1/121
Inventor 丰岳
Owner ZHEJIANG DAFENG SPORTS EQUIP
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