KR200377414Y1 - Apparatus to stand and support seat plate of chair - Google Patents

Abstract

Disclosed is a seat or standing support device for a chair which is configured to be automatically folded at the same time as a theater or auditorium chair, but prevents the generation of noise while making the folding operation slow and stable.

The present invention is a chair made of a seat plate on which a seat cushion is provided on a seat frame provided with a cushioning member, and a back plate and a side plate supporting the seat plate and the backrest, wherein one side of the seat frame can adjust the rotational speed by hydraulic pressure. The hydraulic rotating mechanism is fixed so that its rotating shaft is drawn out to the outside of the seat frame, and on the opposite side of the hydraulic rotating mechanism fixing part of the seat frame, the support protrusion protrudes outwardly in the same horizontal position as the rotating shaft position of the hydraulic rotating mechanism. When unfolding the seat plate, the seat plate can be developed at high speed for convenience, and when it rises from the seat plate, the seat plate is slowly folded, so that stability can be achieved in the folding operation of the seat plate as well as the process of folding or unfolding the seat plate. No noise at all.

Description

Standing plate standing support device of chair {Apparatus to stand and support seat plate of chair}

The present invention relates to a seat plate standing support device for a chair, and more particularly, to configure a theater or auditorium chair to be automatically folded at the same time as standing, but to prevent the occurrence of noise while the folding operation is made slowly and stably. .

As is well known, the chair is composed of a seat plate, a backrest, an armrest, and the like, and a cushioning material may be added to the seatboard, the backrest, etc. to provide more comfort.

Among the chairs used in the theater or auditorium, the built-in chairs are usually fixed to the floor, and the seat plate is kept folded so that the chair can be folded and used automatically. It is normal.

Accordingly, in order to give the chair a function to be automatically folded, conventionally, the rear sides of the chair are rotatably fixed to both sides of the chair by the shaft and the hinge to both side plates extending integrally from the armrest of the chair, and the weight is coupled to the lower surface of the rear end. When the free state to the upper side, that is, when the user stands up was configured to automatically be folded by the weight of the weight.

However, since the folding operation of the folding chair by the weight body depends on the friction force between the shaft and the hinge and the weight of the weight body, it is designed in consideration of this during the initial manufacturing, but when the lubrication is not properly performed during use, the folding chair The operation is not smooth and a lot of squeaky noise is generated, the elastic force of the members are insufficient to stretch or fold the operation is not natural, there was a problem that the noise due to the collision between the members is increased.

In view of this point, in recent years, the spring is formed on the hinge part or one side of the seat plate so that the seat plate is forcibly folded by the force of the spring in the free state, but the speed is very high when the seat plate is folded by the spring elasticity. Since the folding operation is inevitably fast, it may not be stable and may cause a dangerous situation. In addition, the folding operation of the seat may cause noise due to vibration from the spring.

The present invention has been proposed in view of this point, and the hydraulic rotating mechanism is fixed to one side of the seat frame for supporting the seat cushion to pull out the rotating shaft of the hydraulic rotating mechanism to the outside, so that the support protrusion is formed to protrude from the opposite side. When the seat plate is unfolded by the hydraulic rotating mechanism, rapid deployment is possible, and when the pressure applied to the seat plate is released, the seat plate is slowly and stably folded to ensure safety and stand up support of the chair seat which can prevent noise during folding operation. It is to provide a device.

Hereinafter, the present invention will be described in detail with reference to the embodiments presented.

1 is a perspective view of a seat frame according to the present invention, Figure 2 is a detailed view of the hydraulic rotating mechanism according to the present invention, Figure 3 is an operation explanatory view of the hydraulic rotating mechanism during the rotation of the seat plate according to the present invention, Figure 3a Is a state when the seat plate is unfolded, and FIG. 3B is a state when the pressure is applied to the seat plate.

As shown, a general auditorium or theater chair has a seat plate 100, a backrest (not shown), a seat plate 100 and a seat cushion 120 mounted on a seat frame 110 provided with a cushioning member. It consists of a side plate (not shown) for supporting the backrest, one side of the seat frame 110 forming a feature of the present invention so that the hydraulic rotating mechanism 200 is drawn out of the rotation shaft 201 of the seat frame 110 It is fixed, on the opposite side is made to be fixed so that the support protrusion 111 protrudes outward.

At this time, the hydraulic rotating mechanism 200 applied to the present invention, the cylinder 203 and the oil passage 204 communicating with one side is formed in the body 202 filled with oil, respectively, the inside of the cylinder 203 The piston 205 is provided to move in the left and right direction, one side of the piston 205 is provided with a compression spring 206, the oil passage 207 and the valve 208 inside the piston 205 is elastically In the lower portion of the piston 205, a gear gear 209 is formed, and a pinion gear 210 is provided on the rotation shaft 201, and is gear-coupled with the gear gear 209, and an oil passage 204 is provided therein. It is configured to move the oil to the space on the opposite side of the cylinder 203 through the coupling portion, in addition to any method can be applied if the way to adjust the rotational speed by hydraulic pressure, such a hydraulic rotary mechanism is generally hinged door Or floor hinge It is the same principle as the applied hydraulic rotating mechanism.

Reference numeral 211 in the drawing represents a compression spring that elastically supports the valve 208, 212 represents an O-ring sealing between the piston 205 and the cylinder 203.

When the chair configured as described above does not apply any pressure for the first time, the seat plate 100 remains in a folded state, and when the user lowers the seat plate 100, the rotating shaft 201 of the hydraulic rotating mechanism 200 is rotated, When the rotating shaft 201 is rotated, the piston 205 moves in the direction of compressing the compression spring 206 and the valve 208 is completely opened so that the oil can be released at a high speed so that the seat plate 100 can be unfolded at a high speed. .

When the user rises from the chair, ie when the pressure applied to the chair is released, all the members are free and the compression spring 206 returns to its original position in the compressed state, pushing the piston 205 by the repulsive force, When the piston 205 is returned to its original position by the compression spring 206, the valve 208 is pushed and closed by the rear compression spring 211, so the oil passes through the oil passage 204, The gear coupling portion is gradually moved to the space on the opposite side of the cylinder 203, and through the gentle movement of the oil, the seat plate 100 is slowly folded to the original position.

Therefore, even if the user gets up from the chair, the seat plate 100 is stably folded to extend its life, and there is no fear of harming the user, and the spring may be applied to the hydraulic rotating mechanism 200. Since the oil is filled in the hydraulic rotating mechanism 200, no noise is generated during the operation.

As described above, in the present invention, when the seat plate is unfolded, the valve blocking the oil is opened, and the oil moves at a high speed, so that the seat plate can be deployed at a high speed, so that the convenience of use can be achieved. Since the oil is gradually folded in accordance with the movement speed of the seat plate, the stability of the folding operation can be achieved, as well as the advantage that no noise is generated during the folding or unfolding of the seat plate.

1 is a perspective view of a seat frame according to the present invention.

2 is a detailed view of a hydraulic rotating mechanism according to the present invention.

3 is an explanatory view of the operation of the hydraulic rotating mechanism during the rotation of the seat plate according to the present invention,

3A is a state when the seat plate is unfolded.

Figure 3b is a state when the pressure was released to the seat plate.

*** Explanation of symbols for the main parts of the drawing ***

100: seat 110: seat frame

111: support protrusion 120: seat cushion

200: hydraulic rotating mechanism 201: rotating shaft

202: body 203: cylinder

204,207: Oil passage 205: Piston

206,211: compression spring 208: valve

209: Lex Gear 210: Pinion Gear

212: O-ring

Claims (2)

In the chair consisting of a seat plate 100, the back plate and the side plate for supporting the seat plate 100 and the backrest, the seat cushion 120 is placed on the seat frame 110 provided with a buffer member, One side of the seat frame 110 is fixed to the hydraulic rotation mechanism 200 that can adjust the rotational speed by the hydraulic shaft so that the rotating shaft 201 is drawn out of the seat frame 110, the seat frame 110 And a support protrusion 111 protrudes outwardly in the same direction as the position of the rotation shaft 201 of the hydraulic rotating mechanism 200 on the opposite side of the fixed portion of the hydraulic rotating mechanism 200). The method of claim 1, The hydraulic rotating mechanism 200, A cylinder 203 and an oil passage 204 communicating with one side thereof are respectively formed in the body 202 filled with oil, and the piston 205 is provided in the cylinder 203 so as to move in left and right directions. Compression springs 206 are provided at one side of the piston 205, and an oil passage 207 and a valve 208 are formed inside the piston 205, and a lower gear is located below the piston 205. 209 is formed, and the pinion gear 210 is provided on the rotating shaft 201 to be gear-engaged with the rack gear 209, the oil passage 204 through the gear engaging portion the cylinder 203 A standing plate standing support of the chair, characterized in that configured to move the oil to the opposite space.