KR101658188B1 - Gas cylinder with cable - Google Patents

Gas cylinder with cable Download PDF

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Publication number
KR101658188B1
KR101658188B1 KR1020100003571A KR20100003571A KR101658188B1 KR 101658188 B1 KR101658188 B1 KR 101658188B1 KR 1020100003571 A KR1020100003571 A KR 1020100003571A KR 20100003571 A KR20100003571 A KR 20100003571A KR 101658188 B1 KR101658188 B1 KR 101658188B1
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KR
South Korea
Prior art keywords
holder
spindle
cable
taper
taper holder
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KR1020100003571A
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Korean (ko)
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KR20100129128A (en
Inventor
허송
김완수
김진태
Original Assignee
주식회사 삼홍사
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Application filed by 주식회사 삼홍사 filed Critical 주식회사 삼홍사
Priority to KR1020100003571A priority Critical patent/KR101658188B1/en
Publication of KR20100129128A publication Critical patent/KR20100129128A/en
Priority to PCT/KR2011/000273 priority patent/WO2011087307A2/en
Application granted granted Critical
Publication of KR101658188B1 publication Critical patent/KR101658188B1/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder

Abstract

The present invention relates to a gas cylinder having a cable, and more particularly, to a gas cylinder having a cable with improved operational reliability and product durability by not twisting the cable even when the chair is rotated.
The present invention relates to a spindle which reciprocates up and down according to a height adjustment; A cylinder mounted inside the spindle and filled with gas; A piston member for vertically dividing the inside of the cylinder; A pipe holder for sealing the upper end of the cylinder; A gas opening / closing pin disposed inside the pipe holder and controlling the entry / exit of gas filled in the cylinder; A release arm disposed to be capable of contacting one end of the gas opening / closing pin and controlling opening / closing of the gas opening / closing pin; A tapered holder having the release arm housed therein and disposed inside the spindle; And a rotation guide member interposed between the taper holder and the spindle for guiding rotation of the taper holder so that the taper holder is rotatable with respect to the spindle.

Description

Gas cylinder with cable

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable gas cylinder, and more particularly, to a cable gas cylinder equipped with a cable, which improves operational reliability and product durability by not twisting the cable even when the chair rotates.

The gas cylinder is a mechanism used between the seat and the chair base to adjust the height of the seat. In addition, the cable gas cylinder can be applied to various other apparatuses such as a shock buffer mechanism of a vehicle, as well as adjusting the height of a chair seat.

The general construction of the conventional gas cylinder is disclosed in Korean Patent Application No. 10-1998-0028313, entitled " Device for controlling the height of a gas cylinder type chair, " filed by the applicant of the present invention, The structure is clear.

However, in the conventional gas cylinder, since the gas opening / closing pin needs to be operated up and down by a separate handle formed on the lower side of the seat of the chair, it is inconvenient for the user to bend the waist and operate the handle in order to operate the handle There was a dot.

In order to solve such inconveniences, Korean Patent Application No. 10-1998-0026546, entitled " Chair height control member ", which has already been patented by the applicant of the present invention, Can be illustrated.

The above-mentioned "height adjustment member for a chair" is a gas cylinder operated by a cable. The gas cylinder is further provided with a separate button which is arranged in parallel with a certain structure exemplified by an armrest of a chair, And that the gas cylinder can be operated up and down by depressing the button.

With this configuration, the user can adjust the height of the chair by a simple operation of pressing the button by hand without bending the waist.

However, such a conventional "chair height adjusting member" has the following problems. First, since the mechanism is complicated and a large number of various parts are used, the fastening process of the parts is not easy, and there is a problem that the manufacturing cost increases because a large number of parts are used. In addition, since it has a complicated structure, there is a problem that frequent breakdown occurs when it is used repeatedly and continuously. Also, there is a problem that a cable is twisted by a user rotating a chair, resulting in a decrease in operation reliability of the product, and further, a failure occurs in the product.

SUMMARY OF THE INVENTION It is an object of the present invention to propose a cable gas cylinder in which a cable is not twisted even if a chair rotates, thereby improving operational reliability.

Another object of the present invention is to provide a cable gas cylinder which enables a user to more conveniently operate a cable gas cylinder and can perform a fastening operation simply at a production site. It is also an object of the present invention to propose a cable gas cylinder capable of further lowering the manufacturing cost.

The present invention relates to a spindle which reciprocates up and down according to a height adjustment; A cylinder mounted inside the spindle and filled with gas; A piston member for vertically dividing the inside of the cylinder; A pipe holder for sealing the upper end of the cylinder; A gas opening / closing pin disposed inside the pipe holder and controlling the entry / exit of gas filled in the cylinder; A release arm disposed to be capable of contacting one end of the gas opening / closing pin and controlling opening / closing of the gas opening / closing pin; A tapered holder having the release arm housed therein and disposed inside the spindle; And a rotation guide member interposed between the taper holder and the spindle for guiding rotation of the taper holder so that the taper holder is rotatable with respect to the spindle, And a support member interposed between the tapered holders, wherein the tapered holder and the support member are in point contact on one end face including the central axis of the cylinder.

In the present invention, the inner diameter of the rotation guide member may be formed to be larger than the outer diameter of the taper holder.

delete

In the present invention, it is possible to further include a ball disposed between the release arm and the gas opening / closing pin.

In the present invention, the rotation guide member may include a first bearing interposed between an inner side of an upper end of the spindle and the taper holder, and a second bearing interposed between the taper holder and the pipe holder.

Here, the first bearing and the second bearing may be ball bearings or thrust bearings.

In the present invention, the rotation guide member may include a support member interposed between an inner surface of an upper end of the spindle and the taper holder, and a bearing interposed between the taper holder and the pipe holder.

The rotation guide member may include a support member interposed between the inner surface of the upper end of the spindle and the taper holder, a ball housing interposed between the taper holder and the pipe holder, and a ball accommodated in the ball housing, . ≪ / RTI >

Here, the taper holder and the support member may be in point contact.

In the present invention, the rotation guide member may include: a support member interposed between the taper holder and the spindle; a first washer interposed between the inner side of the upper end of the spindle and the taper holder; A ball housing interposed between the holders, and a ball received in the ball housing.

Here, the second housing may further include a second washer interposed between the ball housing and the taper holder.

The present invention may further include a friction reducing member interposed between the taper holder and the rotation guide member.

In the present invention, one end of the release arm is fixed by a pin, so that the release arm can rotate about the pin.

In the present invention, it may include a cable or a lever which is pulled by an external force to control the rotation of the release arm.

Here, as the cable or the lever rotates, the release arm and the taper holder can rotate together with the cable or the lever.

According to the present invention, since the taper holder is rotatably formed, even if the chair rotates, the cable is not twisted, and thus the operation reliability and durability of the product are improved.

In addition, the user can more conveniently operate the cable gas cylinder, and an effect of simple tightening operation can be obtained at the production site.

Further, the reliability and stability of the operation of the gas cylinder can be further increased, and the manufacturing cost of the gas cylinder can be further lowered.

1 is a cross-sectional view of a cable gas cylinder according to a first embodiment of the present invention.
Fig. 2 is a view for explaining the operation of the present invention, in which an external force is not applied to the gas opening / closing pin. Fig.
Fig. 3 is a view for explaining the operation of the present invention, in which an external force is applied to the gas opening / closing pin. Fig.
4 is a cross-sectional view of a cable gas cylinder according to a second embodiment of the present invention.
5 is a cross-sectional view of a cable gas cylinder according to a third embodiment of the present invention.
6 is a cross-sectional view of a cable gas cylinder according to a fourth embodiment of the present invention.
7 is a cross-sectional view of a cable gas cylinder according to a fifth embodiment of the present invention.
8 is a cross-sectional view of a cable gas cylinder according to a sixth embodiment of the present invention.
9 is a cross-sectional view of a cable gas cylinder according to a seventh embodiment of the present invention.
10 is a cross-sectional view of a cable gas cylinder according to an eighth embodiment of the present invention.
11 is a cross-sectional view of a cable gas cylinder according to a ninth embodiment of the present invention.
12 is a sectional view of a cable gas cylinder according to a tenth embodiment of the present invention.
13 is a cross-sectional view of a cable gas cylinder according to another embodiment of the present invention.
14 is a cross-sectional view of a cable gas cylinder according to another embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It should be understood, however, that there is no intention to limit the scope of the present invention to the embodiment shown, and that other embodiments falling within the scope of the present invention may be easily devised by adding, Can be proposed.

1 is a cross-sectional view of a cable gas cylinder according to a first embodiment of the present invention.

1, a cable gas cylinder 100 according to a first embodiment of the present invention includes a hollow tube-shaped base tube 110, a hollow tube (not shown) inserted into the hollow portion of the base tube 110, A sleeve 145 inserted into the contact surface between the base tube 110 and the spindle 120 to smoothly move up and down the spindle 120, And a bushing 117 and a hollow tube-shaped cylinder 140 formed on the inner peripheral surface of the spindle 120.

The cable gas cylinder 100 of the present invention includes a piston 130 contacting the inner circumferential surface of the cylinder 140 and separating the gas filling space inside the cylinder 140 into the upper chamber 161 and the lower chamber 162, And a piston rod 135 having one end fixed to the piston 130 and extending downward and the other end fixed to the lower end of the base tube 110. The other end of the piston rod 135 is connected to the base tube 110, 110) of the fastening clip (137).

The cable gas cylinder 100 of the present invention includes a pipe holder 152 that seals the upper portion of the cylinder 140 and a pipe holder 152 which is mounted through the center of the pipe holder 152, An orifice 153 formed in the pipe holder 152 and through which the gas filled in the cylinder 140 enters and exits when the opening and closing pin 151 descends, And at least one O-ring 154 interposed in the contact surface between the outer circumferential surface of the cylinder 152 and the inner circumferential surface of the spindle 120 and / or the cylinder 140.

In detail, a gas chamber 160 having a predetermined length is formed in the cylinder 140, and nitrogen gas is injected into the gas chamber 160. Here, the gas chamber 160 is divided into the upper chamber 161 and the lower chamber 162 by the piston 130. The volume of the upper chamber 161 and the lower chamber 162 is changed by the reciprocating movement of the spindle 120. Meanwhile, the upper chamber 161 and the lower chamber 162 are maintained at a pressure P2 higher than the atmospheric pressure P1. Between the cylinder 140 and the spindle 120 is formed a gas flow path 163 through which gas flows between the upper chamber 161 and the lower chamber 162.

The cable gas cylinder 100 according to the first embodiment of the present invention includes a taper holder 180 further formed on the upper side of the pipe holder 152 and a taper holder 180 fixed to the taper holder 180 and the spindle 120 A rotation guide member 190 interposed between the taper holder 180 and the release arm 170 accommodated in the taper holder 180 so as to be rotatable with respect to the spindle 120, A release arm 170 which is pressed by the taper holder 180 and guided by the taper holder 180 so that the stop position and movement of the release arm 170 and the cable 165 for operating the release arm 170 are provided.

Here, the base tube 110, the spindle 120, the cylinder 140, the release arm 170, the taper holder 180, the pipe holder 152, the rotation guide member 190, A metal material can be used so as not to be damaged by the stress applied by the weight of the user who uses the chair. However, it can not be said that the material is limited by metal, and even if plastic is used, there is no restriction on its use.

One end of the cable 165 may be connected to the release arm 170 and the other end may be connected to a predetermined button. Illustratively, the button structure of the prior art, which is installed in the armrest portion of the chair, can be equally used. One end of the cable 165 may be connected to the release arm 170 and the other end may be connected to a predetermined lever. However, the button structure or lever structure formed at the other end of the cable 165 is merely exemplary, and the structure for pulling the cable 165 is not limited to the structure in which the cable 165 can be pulled within a predetermined length, It is also said that another cable pulling structure is known which is not a field related to a cable gas cylinder but is already known. Further, a cable holder 166 fixed to the upper end of the taper holder 180 is further formed to guide the position of the cable 165.

On the other hand, the release arm 170 is rotated around a predetermined rotation center axis so that the gas opening / closing pin 151 is operated. In particular, the release arm 170 does not include the fixed shaft structure as a predetermined center axis for fixing the position thereof or fixing the rotation center shaft, but is formed in a predetermined space formed inside the taper holder 180 The position can be specified only by the inserted operation. The lower side of the release arm 170 is supported by the gas opening / closing pin 151.

Further, the taper holder 180 accommodates the release arm 170 in the inner space, and is disposed at the upper end of the spindle 120. In detail, the operation of inserting the release arm 170 into the inside of the taper holder 180 ends the installation process of the release arm 170, and the operation of the release arm 170 is also sufficiently possible without any limitation.

Meanwhile, the rotation guide member 190 is formed in a hollow cylindrical shape, and the taper holder 180 is coupled to the space inside the rotation guide member 190. In other words, the rotation guide member 190 is fitted to the upper end of the inner peripheral surface of the spindle 120, and the taper holder 180 is fitted to the inner circumferential surface of the rotation guide member 190. Preferably, the outer diameter of the taper holder 180 may be smaller than the inner diameter of the rotation guide member 190. Accordingly, when the chair is rotated and the direction of the cable 165 is changed, the taper holder 180 and the release arm 170 therein can be rotated while being guided by the rotation guide member 190.

The cable 165 inserted into the release arm 170 and fixed to the release arm 170 is fixed to the end of the release arm 170 after being passed through the release arm 170 or by a stopper 167 And is placed in the release arm 170.

The taper holder 180 can be rotated together with the cable 165 according to the rotation of the cable 165 connected to the taper holder 180. [ Therefore, there is an effect that the cable 165 is prevented from being twisted.

The cable gas cylinder 100 according to the first embodiment of the present invention is provided with a rotation guide member 190 so that the taper holder 180 and the release arm 170 accommodated therein are moved relative to the spindle 120 And is rotatable.

In detail, in the gas cylinder having the conventional cable, since the release arm and the taper holder with the cable and the cable are not rotated with respect to the spindle, if the user rotates the chair, the cable is twisted, And there has been a problem that the product is broken down. Also, when the chair is used, the coupling part between the tilt mechanism and the spindle may be idle, and the cable is also twisted. Further, if the release arm and the taper holder are not rotated with respect to the spindle, there is a problem that the assembly of the product is not easy.

The cable gas cylinder 100 according to the first embodiment of the present invention is installed between the taper holder 180 and the spindle 120 and between the taper holder 180 and the pipe holder 152, The taper holder 180 and the release arm 170 accommodated in the taper holder 180 are rotatable with respect to the spindle 120. [ Here, the rotation guide member 190 may have a hollow cylindrical shape. At this time, the outer diameter of the rotation guide member 190 may be formed to be slightly smaller than the inner diameter of the sleeve 120 and slightly larger than the outer diameter of the taper holder 180. That is, a slight gap may be formed between the rotation guide member 190 and the taper holder 180, so that the taper holder 180 can rotate about the rotation guide member 190 . The height of the taper holder 180 is also slightly smaller than the height of the inner space of the rotation guide member 190. That is, the rotation guide member 190 is tightly coupled with the pipe holder 152, while a slight gap is formed between the taper holder 180 and the pipe holder 152, so that the rotation guide member 190 is not tightly coupled. This space allows the taper holder 180 to rotate relative to the rotation guide member 190.

The rotation guide member 190 is interposed between the spindle 120 and the taper holder 180 so that the rotation guide member 190 can be fixedly coupled to the spindle 120 and the pipe holder 152 The taper holder 180 and the release arm 170 accommodated therein can freely rotate in accordance with the rotation of the cable 165. [ Therefore, even if the chair rotates, the cable is not twisted, and the operation reliability and the durability of the product are improved.

Hereinafter, the operation of the cable gas cylinder according to the above configuration will be schematically described.

Fig. 2 is a view for explaining the operation of the present invention, in which an external force is not applied to the gas opening / closing pin. Fig.

2, when an external force is not applied by the user, the cable 165 is not pulled, and the release arm 170 is rotated counterclockwise around the rotation center 171. As shown in FIG. In this state, the gas pushing portion 172 does not press the gas opening / closing pin 151, and no gas flows between the upper chamber 161 and the lower chamber 162. Therefore, the up and down movement of the cable gas cylinder is stopped.

Fig. 3 is a view for explaining the operation of the present invention, in which an external force is applied to the gas opening / closing pin. Fig.

Referring to FIG. 3, when the user applies an external force to pull the cable 165 while sitting on a chair, the release arm 170 rotates clockwise around the rotation center 171, Closing pin 151 as shown in Fig. When the gas opening / closing pin 151 is pressed and lowered, a space is generated at the lower end of the pipe holder 152. The outer circumferential surface of the gas opening / closing pin 151 is formed with a depressed portion recessed at a predetermined depth. Thus, the gas in the upper chamber 161 moves upward along the space formed at the lower end of the pipe holder 152. The moved gas moves to the depressed portion and is moved to the gas flow path 163 formed between the spindle 120 and the cylinder 140 through the orifice 153. The gas moved downward along the gas passage 163 is moved to the lower chamber 162. Accordingly, the volume of the lower chamber 162 becomes larger than the volume of the upper chamber 161, and the spindle 120 is lowered. At the same time, the overall length of the cable gas cylinder is reduced, and the seat of the chair is moved downward.

Then, after the height of the chair seat is adjusted to the desired height, the external force pulling the cable 165 is removed. When the external force is removed, the gas opening / closing pin 151 is moved upward by the pressure applied by the high-pressure gas in the upper chamber 161, and the force is transmitted to the release arm 170 and the cable 165, Can be restored to the original position. On the other hand, as the gas opening / closing pin 151 is moved upward, the gas movement between the gas chambers 161 and 162 is stopped, and thus the position of the chair seat is fixed.

Meanwhile, as described above, one end of the cable 165 is connected to the release arm 170 and the taper holder 180, and the other end is connected to a predetermined button or lever. Illustratively, the button may be mounted on the armrest of the chair, and the lever may be mounted on the tilt mechanism of the chair seat.

In this case, when the user rotates the chair, the button provided on the armrest of the chair and the cable 165 connected to the button are rotated together. The taper holder 180 and the release arm 170 connected to the cable 165 may also be rotated while being guided by the rotation guide member 190. Therefore, the cable 165 can be prevented from being twisted.

(Second Embodiment)

4 is a cross-sectional view of a cable gas cylinder according to a second embodiment of the present invention.

The present embodiment is different from the first embodiment in that a ball 175 is further interposed between the release arm 170 and the gas opening and closing pin 151. [ That is, the release arm is not formed as a single member but consists of two members, that is, the release arm 170 and the ball 175, and the ball 175 is disposed at the contact portion with the gas opening and closing pin 151. According to such a configuration, friction between the release arm and the gas opening / closing pin is reduced, and the operation of the cable gas cylinder is further smoothened.

(Third Embodiment)

5 is a cross-sectional view of a cable gas cylinder according to a third embodiment of the present invention.

In this embodiment, the rotation guide member 210 is distinguished from the first embodiment in that two ball bearings 211 and 212 are provided. In detail, the first bearing 211 is interposed between the upper end of the spindle 120 and the upper end of the taper holder 180. The second bearing 212 is interposed between the upper end of the pipe holder 152 and the lower end of the taper holder 180. Here, the first bearing 211 and the second bearing 212 may all be ball bearings. The bearings 211 and 212 reduce the frictional force when the taper holder 180 rotates and can support the rotation shaft and be fixed at a fixed position. The rotation guide member 210 including the two ball bearings 211 and 212 can smoothly rotate the taper holder 180 with respect to the spindle 120.

(Fourth Embodiment)

6 is a cross-sectional view of a cable gas cylinder according to a fourth embodiment of the present invention.

In this embodiment, the rotation guide member 220 is distinguished from the first embodiment in that one ball bearing 221 and one thrust bearing 222 are provided. In detail, the first bearing 221 is interposed between the upper end of the spindle 120 and the upper end of the taper holder 180. The second bearing 222 is interposed between the upper end of the pipe holder 152 and the lower end of the taper holder 180. Here, the first bearing 211 may be a ball bearing, and the second bearing 212 may be a thrust bearing. By the bearings 221 and 222, the frictional force during rotation of the taper holder 180 can be reduced and the rotation shaft can be supported and fixed at a predetermined position. The rotation guide member 220 including the ball bearing 221 and the thrust bearing 222 can provide an effect that the rotation of the taper holder 180 with respect to the spindle 120 is smoothly performed.

(Fifth Embodiment)

7 is a cross-sectional view of a cable gas cylinder according to a fifth embodiment of the present invention.

In this embodiment, the rotation guide member 230 is distinguished from the first embodiment in that a support member 231 and a bearing 232 are provided. In detail, the support member 231 is formed in a substantially hollow cylindrical shape and intervenes between the upper end of the spindle 120 and the upper end of the taper holder 180. The bearing 232 is interposed between the upper end of the pipe holder 152 and the lower end of the taper holder 180. At this time, the end surface of the support member 231 is formed in a substantially "a" shape so that the contact surface with the taper holder 180 is minimized so that the taper holder 180 can be rotated with respect to the spindle 120. Meanwhile, the bearing 232 may be a ball bearing or a thrust bearing. With such a bearing 231, it is possible to reduce frictional force when the taper holder 180 is rotated and to fix the taper holder 180 at a fixed position by supporting the rotation shaft. The rotation guide member 230 including the support member 231 and the bearing 232 can provide the effect that the rotation of the taper holder 180 with respect to the spindle 120 is smoothly performed.

(Sixth Embodiment)

8 is a cross-sectional view of a cable gas cylinder according to a sixth embodiment of the present invention.

The present embodiment is distinguished from the first embodiment in that the rotation guide member 250 is provided with the support member 251, the ball housing 252, the ball 253 and the washer 254. In detail, the support member 251 is formed in a generally hollow cylindrical shape and interposed between the upper end of the spindle 120 and the upper end of the taper holder 180. At this time, the cross section of the support member 251 is formed in a substantially "a" shape so that the contact surface with the taper holder 180 is minimized so that the taper holder 180 can rotate with respect to the spindle 120. Meanwhile, the ball housing 252 is interposed between the upper end of the pipe holder 152 and the lower end of the taper holder 180. At the upper end of the ball housing 252, a groove for receiving the ball 253 is formed, and a ball 253 is disposed in the groove. Although two balls 253 are shown in the drawing, the spirit of the present invention is not limited thereto, and various configurations may be possible according to specifications of the product. A washer 254 may be further formed between the ball housing 252 and the ball 253 and the taper holder 180. By the ball housing 252, the ball 253 and the washer 254, the frictional force during rotation of the taper holder 180 can be reduced and the rotation shaft can be supported and fixed at a fixed position. Also, the rotation guide member 250 can provide an effect that the rotation of the taper holder 180 with respect to the spindle 120 is smoothly performed.

(Seventh Embodiment)

9 is a cross-sectional view of a cable gas cylinder according to a seventh embodiment of the present invention.

In this embodiment, the rotation guide member 260 is provided with the support member 261, the first washer 262, the ball housing 263, the ball 264 and the second washer 265, 1 embodiment. In detail, the support member 261 is formed in a substantially hollow cylindrical shape and interposed between the spindle 120 and the taper holder 180. [ In other words, the support member 261 is fitted to the upper end of the inner surface of the spindle 120, and the taper holder 180 is fitted to the inner peripheral surface of the support member 261. Preferably, the outer diameter of the taper holder 180 may be smaller than the inner diameter of the support member 261. Therefore, when the chair is rotated and the direction of the cable is changed, the taper holder 180 and the release arm 170 therein can be rotated while being guided by the support member 261. [ Meanwhile, a first washer 262 may be further formed between the support member 261 and the upper end of the taper holder 180.

Meanwhile, the ball housing 263 is interposed between the upper end of the pipe holder 152 and the lower end of the taper holder 180. At an upper end of the ball housing 263, a groove for receiving the ball 264 is formed, and a ball 264 is disposed in the groove. Although two balls 264 are illustrated as being disposed in the drawing, the spirit of the present invention is not limited thereto, and various configurations may be possible according to the specification of the product. A second washer 265 may be further provided between the ball housing 263 and the ball 264 and the taper holder 180. By the ball housing 263, the ball 264 and the second washer 265, the frictional force during rotation of the taper holder 180 can be reduced and the rotation shaft can be supported and fixed at a predetermined position. Further, by the rotation guide member 260, the rotation of the taper holder 180 with respect to the spindle 120 can be smoothly performed.

(Eighth Embodiment)

10 is a cross-sectional view of a cable gas cylinder according to an eighth embodiment of the present invention.

The present embodiment is distinguished from the first embodiment in that a friction reducing member 272 is further interposed between the taper holder 180 and the rotation guide member 271. [ Here, as the friction reducing member 272, a ball may be used. That is, predetermined grooves are formed on the outer circumferential surface of the taper holder 180 and the inner circumferential surface of the corresponding rotation guide member 271, and a friction reducing member 272 such as a ball is received in the grooves. With such a configuration, friction between the taper holder 180 and the rotation guide member 271 is reduced, and the operation of the cable gas cylinder is further improved.

(Ninth Embodiment)

11 is a cross-sectional view of a cable gas cylinder according to a ninth embodiment of the present invention.

In this embodiment, the release arm 170 is fixed to the pin 280, so that the release arm 170 is configured to rotate about the pin 280, which is distinguished from the first embodiment described above. One end of the release arm 170 is fixed by the pin 280 and the pin 280 is fixed to the taper holder 180 so that the release arm 170 is rotated about the pin 280 . By such a configuration, the rotation path of the release arm 170 is clearly defined, so that the operation of the cable gas cylinder becomes more smooth.

(Tenth Embodiment)

12 is a sectional view of a cable gas cylinder according to a tenth embodiment of the present invention.

This embodiment is distinguished from the above-described first embodiment in that a lever 290 is provided instead of a cable. One end of the release arm 170 is connected to the lever 290 so that the release arm 170 is rotated around a predetermined rotation center axis by pushing and pulling the lever 290, Is operated. With this configuration, it is possible to obtain an effect that the operation of the cable gas cylinder becomes more smooth.

Although the present invention has been described with reference to the limited embodiments, various embodiments are possible within the scope of the present invention. It will also be understood that, although not described, equivalent means are also incorporated into the present invention. Therefore, the true scope of protection of the present invention should be defined by the following claims.

100: cable gas cylinder 110: base tube 120: spindle
140: cylinder 130: piston 135: piston rod
151: gas opening / closing pin 152: pipe holder 170: release arm
180: taper holder 190: rotation guide member

Claims (15)

A spindle reciprocating up and down according to the height adjustment;
A cylinder mounted inside the spindle and filled with gas;
A piston member for vertically dividing the inside of the cylinder;
A pipe holder for sealing the upper end of the cylinder;
A gas opening / closing pin disposed inside the pipe holder and controlling the entry / exit of gas filled in the cylinder;
A release arm disposed to be capable of contacting one end of the gas opening / closing pin and controlling opening / closing of the gas opening / closing pin;
A tapered holder having the release arm housed therein and disposed inside the spindle; And
And a rotation guide member interposed between the taper holder and the spindle for guiding rotation of the taper holder so that the taper holder is rotatable with respect to the spindle,
Wherein the rotation guide member further includes a support member interposed between an inner surface of an upper end portion of the spindle and the taper holder,
Wherein the taper holder and the support member are in point contact on one end face including the central axis of the cylinder. delete The method according to claim 1,
Wherein an inner diameter of the rotation guide member is formed to be larger than an outer diameter of the taper holder. The method according to claim 1,
And a ball disposed between the release arm and the gas opening / closing pin. The method according to claim 1,
Wherein the rotation guide member includes a first bearing interposed between an inner side of an upper end of the spindle and the taper holder and a second bearing interposed between the taper holder and the pipe holder. 6. The method of claim 5,
Wherein the first bearing and the second bearing are ball bearings or thrust bearings. The method according to claim 1,
Wherein the rotation guide member further includes a bearing interposed between the taper holder and the pipe holder. The method according to claim 1,
Wherein the rotation guide member further includes a ball housing interposed between the taper holder and the pipe holder, and a ball accommodated in the ball housing. delete The method according to claim 1,
The rotation guide member includes a first washer interposed between an inner side of an upper end of the spindle and the taper holder, a ball housing interposed between the taper holder and the pipe holder, and a ball accommodated in the ball housing Features a cable gas cylinder. 11. The method according to any one of claims 8 to 10,
And a second washer interposed between the ball housing and the taper holder. The method according to claim 1,
And a friction reducing member interposed between the taper holder and the rotation guide member. The method according to claim 1,
And one end of the release arm is fixed by a pin, so that the release arm rotates about the pin. The method according to claim 1,
And a cable or lever which is pulled by an external force to control the rotation of the release arm. 15. The method of claim 14,
And the release arm and the taper holder are rotated together with the cable or lever as the cable or lever rotates.
KR1020100003571A 2010-01-14 2010-01-14 Gas cylinder with cable KR101658188B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020100003571A KR101658188B1 (en) 2010-01-14 2010-01-14 Gas cylinder with cable
PCT/KR2011/000273 WO2011087307A2 (en) 2010-01-14 2011-01-14 Cable gas cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100003571A KR101658188B1 (en) 2010-01-14 2010-01-14 Gas cylinder with cable

Publications (2)

Publication Number Publication Date
KR20100129128A KR20100129128A (en) 2010-12-08
KR101658188B1 true KR101658188B1 (en) 2016-09-22

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WO2011087307A2 (en) 2011-07-21
KR20100129128A (en) 2010-12-08
WO2011087307A3 (en) 2011-12-01

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