KR102258998B1 - Spring support device for table chair with automatic folding chair - Google Patents

Abstract

The present invention relates to a multi-person table installed in a dining room or lounge to automatically fold an unfolded chair. More specifically, a connecting support is coupled by a shaft bolt to a bracket mounted on a table frame. A thrust ball bearing is seated on an upper side of the connecting support. A compression torsion spring is inserted into a lower part of the connecting support. Between the bracket and the connecting support, a separate rotating stopper interfering with the lower part of the connecting support is coupled and formed. With a relatively simple configuration, a chair's elastic support device for a table with an automatically folding chair allows the chair to be easily rotated and unfolded and be automatically accommodated and rotated as in a conventional device, and thus the service life thereof is greatly extended. The chair's elastic support device can be simply constructed to increase productivity and contribute to mass production, thereby being very economical. When a user sits in the chair, the chair's elastic support device can maintain a state in which the chair is rotated and unfolded, with the weight of the user, so that the user can eat, study, or work in a more stable state, thereby being very efficient.

Description

Chair support device for automatic storage table chair {Spring support device for table chair with automatic folding chair}

The present invention relates to a multi-person table that is installed in a restaurant or a rest room to automatically fold a chair in a pulled out state, and more particularly, is rotated and pulled out by improving the structure of a chair holding device mounted on the frame of the table. It is about a chair support device for a table that not only makes the chair automatically fold to the lower side of the table more smoothly, but also fixes the unfolded and drawn out state when the user's load is applied to the pulled out chair so that the convenience of use is further improved.

In general, multi-person tables are provided in places used by a large number of people, such as restaurants and rest areas, and it is common for these multi-person tables to be equipped with individual chairs so that each person can sit down to eat food or perform various convenient activities. to be.

However, if the user does not clean up the table chair after using it, that is, if it is not moved to the lower part of the table, the chair is not only exposed messily but also causes inconvenience such as blocking the passage or causing interference. of manpower is input to perform the task of arranging the chair.

Accordingly, in recent years, in order to reduce the inconvenience or economic loss caused by the chair as described above, a table having an automatic folding chair that automatically folds to the lower side of the table when the chair in the drawn-out state is not in use is being used. When the user stands up after using the chair rotated by the user, the table is automatically folded to the lower side of the table, and a separate chair arrangement is unnecessary, so a very efficient feature is produced.

A table having such an automatic folding chair is installed on one side of the table top plate, a plurality of vertical support frames coupled to the lower end of the table top plate, and one side of the vertical support frame as shown in Korean Patent Registration No. 10-1080706. A tubular rotation support having a first cut-out groove on one side of the outer circumferential surface, as a cylindrical image in which a through hole is formed in the center of the bottom surface, is inserted inside the rotation support, a first space portion and a first space in the upper and lower portions of the rotation support 2 A bushing member forming a space portion, a chair member including a seat plate and a support member, an extension portion extending to the side of the support member, and the other end of the extension portion being bent downwardly in the first space portion of the rotation support A rotating part that is rotatably coupled, a connecting member that is formed to protrude downward of the rotating part and is coupled to pass through a through hole of the bushing member, and a protrusion having a second cut-out groove formed on one side of the lower end is formed, the rotating paper A first elastic member accommodated in the second space of the earth, having one end engaged with the first cut-out groove and the other end engaged with the second cut-out groove to apply an elastic force to the table top plate inward direction with respect to the rotating part. And an automatic folding chair-integrated table including a cap member coupled to the lower end of the pivot support has been devised and registered.

In addition, as in Patent Registration No. 10-1211838, an upper support fixed to the lower surface of the table, a lower support extending to the lower side of the upper support, and a horizontal support frame fixed horizontally between the upper and lower supports a table body consisting of; A rotating housing is installed on a fixing bracket in which an upper/lower support plate and a shaft coupling groove are formed at one end of the horizontal support frame, and a central shaft rod having an upper/lower screw fastening part formed inside the rotation housing is installed, and of the central shaft rod a rotation folding member consisting of a torsion spring having both ends fixed to the outer surface and the rotating housing, respectively, to prevent separation by an upper/lower cover, and a fastening nut fastened to the screw fastening portion of the central shaft rod; A first slip member by forming a slip gear part inside the rotating housing of the rotating folding member so that the elastic contact member provided on the central shaft is in contact with the slip gear unit, and the outer surface of the rotating housing is a connection frame by a buffer body A folding chair-integrated table composed of a chair with a chair support shaft capable of being raised and lowered has been devised and registered.

Next, as shown in Patent Registration No. 10-1180862, a chair elevating function that is installed on the chair leg and automatically elevates and lowers the chair up and down depending on the load of the chair, and an empty chair attached to the table support leg automatically folds under the table A chair automatic folding device for a chair-integrated table that integrated the folding function of Shiki into a single folding device has been devised and registered.

In addition, as shown in Patent Registration No. 10-1536339, the chair is rotated through the frame connecting the table and the chair while the chair is stored in the space under the table, unfolds out of the lower space, and automatically returns to the original position when the external force is removed A storage table, comprising: a table body provided with table legs; A rotary rod installed on the table leg and having a concave cam formed on the side thereof, a recovery disk inserted into the rotary rod so as to be elevating/lowering, male and female coupled to the concave cam, and a recovery spring for elastically supporting the recovery disk connection; and a seat plate comprising a seat plate and a seat plate leg provided under the seat plate, wherein the seat plate leg is connected to the rotating rod, wherein the rotating rod is rotatably installed and the restoration disk is installed such that rotation is suppressed. An automatic chair storage table has been devised and registered.

In addition, as shown in Patent Registration No. 10-2075533, a seat portion that provides a seating space for a user, a rotation coupling portion rotatably coupled to a table leg, and a rotation coupling portion provided in the rotation coupling portion for the user to sit on the seat portion A table comprising: a rotation limiting part for limiting rotation of the rotation coupling part with a load; and an elastic rotation connection part for connecting the seat part to the rotation limiting part so that the seat part rotates elastically while the user is seated on the seat part Automatic alignment chairs for connection have been devised and registered.

However, in the case of the conventional automatic folding table for chairs as described above, most of the chair support devices mounted on the table frame allow automatic storage of the chair from the rotation action by compression and release of the torsion spring, or a cam using the reaction force of the compression spring. It is configured so that the chair is automatically stored by the rotation of the device, so it has a problem in that assembly and productivity are extremely poor due to an unnecessarily complicated configuration.

In particular, in the case of the existing automatic chair storage table, the chair continuously shakes back and forth in the process of eating food or learning while sitting on a chair in a state of being rotated and withdrawn, which interferes with food intake or learning As a result, the chair is rotated by the forced pull-out force and the compression force of the spring is generated at the same time, and the inconvenience of use is very large due to the chair not being fixed.

In addition, in the case of infants and infants, if sufficient pressing force to overcome the return force of the spring cannot be maintained due to the light weight, the chair in the drawn-out state automatically returns to the end of the table by the force of the infant or infant's body being too close. It has a negative effect that causes discomfort.

Republic of Korea Patent 10-1080706 (Registered on Nov. 1, 2011) Republic of Korea Patent 10-1211838 (Registered on 2012.12.06.) Republic of Korea Patent 10-1180862 (Registered on Sep. 3, 2012) Republic of Korea Patent 10-1536339 (Registered on July 7, 2016) Republic of Korea Patent 10-2075533 (Registered on Feb. 4, 2020)

The present invention is an improvement of the above-mentioned problems, wherein a connecting support is formed by coupling a shaft bolt in a bracket mounted on a table frame, a thrust ball bearing is placed on the upper side of the connecting support, and a compression torsion is provided at the lower part of the connecting support. By inserting a spring, and forming a separately provided rotation stopper to interfere with the lower portion of the connection support between the bracket and the connection support,

A chair automatic storage table that allows the chair to rotate freely and automatically rotate when no load is applied to it, and to suppress the withdrawal rotation and automatic storage rotation while seated on the chair, so that the convenience of use is further improved. It is an object of the present invention to provide a tanji device for a chair.

The present invention for achieving the object as described above, a fixing bracket having horizontal bent portions at upper and lower ends, a connection support inserted inside the fixing bracket and formed with an arm coupling part projecting on one side, and an upper portion of the connection support A thrust ball bearing to be seated, a spring receiver coupled to the lower portion of the connection support, a compression torsion spring inserted into the spring from the lower side of the spring receiver, and a rotation stopper fixed on the lower horizontal bent part of the fixing bracket; It is composed of a shaft bolt coupled and fixed to the horizontal bent part through the connection support, the thrust ball bearing, the spring receiver, the compression torsion spring, and the rotation stopper,

One end is constrained in the connection support and the other end is raised so that the thrust ball bearing is in close contact with the bottom surface of the upper horizontal bent part by the elastic force of the compression torsion spring restrained by the rotation stopper, and the connection support is forced to rotate with respect to the fixing bracket. and automatic return rotation, and when the connecting support compresses the compression torsion spring by the load acting on the connecting support and descends, the stopper of the bottom surface of the spring receiver is placed in the radial locking groove on the rotation stopper, and the connecting support It is configured to prevent rotation of the .

The present invention is to greatly extend the service life because simple rotation withdrawal and automatic storage rotation of the chair are made with a relatively simple configuration, and it is very economical due to the contribution of productivity improvement and mass production due to the simplification of the configuration. And, when sitting in a chair, it is possible to maintain a state of rotation due to the user's weight, so that it is possible to eat or study or work in a more stable state, which is very effective.

1 is an overall perspective view of a table to which a chair tanji device according to the present invention is applied;
Figure 2 is a schematic exploded perspective view of a chair tanji device according to the present invention
3 is an exploded perspective view of the entire chair tanji device according to the present invention;
Figure 4 is an overall combined cross-sectional view of the chair tanji device according to the present invention
5 is an overall separated cross-sectional view of the chair tanji device according to the present invention
6 is a cross-sectional view showing the rotation state of the chair tanji device according to the present invention;
Figure 7 is a fixed state coupling cross-sectional view of the chair tanji device according to the present invention

Additional objects, features and advantages of the present invention may be more clearly understood from the following detailed description and accompanying drawings.

Prior to the detailed description of the present invention, the present invention is capable of various modifications and various embodiments, and the examples described below and shown in the drawings are intended to limit the present invention to specific embodiments. It should be understood as including all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

In addition, when a component is referred to as being "connected" or "connected" to another component, it may be directly connected or connected to the other component, but other components may exist in the middle. It should be understood that there is. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

Subsequently, terms used in the present specification are used only to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

In addition, terms such as "... unit", "... unit", "... module" described in the specification mean a unit that processes at least one function or operation, which is hardware, software, or hardware and It can be implemented as a combination of software.

In addition, in the description with reference to the accompanying drawings, the same reference numerals are assigned to the same components regardless of the reference numerals, and redundant descriptions thereof will be omitted. In describing the present invention, when it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall perspective view of a table to which a chair tanji device according to the present invention is applied, FIG. 2 is a schematic exploded perspective view of a chair tanji device according to the present invention, and FIG. 3 is an entire separated perspective view of the chair tanji device according to the present invention; Figure 4 is an overall combined cross-sectional view of the chair tanji device according to the present invention, Figure 5 is an overall separated sectional view of the chair tanji device according to the present invention.

First, the chair support device according to the present invention is mounted on the frame or support angle of various tables as in the prior art, and the chair with an automatic storage function is provided with a support arm extending from one side or the bottom surface of the chair to one side. As the support arm is fastened to the tanji device of the present invention, the chair in a state arbitrarily drawn out and deployed by an external force can be automatically accommodated to the lower side of the table by the spring restoring force.

Accordingly, the chair tanji device of the present invention includes a fixing bracket 110 having horizontal bent portions 111 and 111 ′ on the upper and lower ends, and an arm coupling part ( A connection support 120 on which 121 is protruded, a thrust ball bearing 130 seated on an upper portion of the connection support 120 , and a spring receiver 140 coupled to a lower portion of the connection support 120 , and the A compression torsion spring 150 inserted into the inside from the lower side of the spring receiver 140, a rotation stopper 160 fixed on the lower horizontal bent part 111' of the fixing bracket 110, and the connection support (120), the thrust ball bearing 130, the spring receiver 140, the compression torsion spring 150, and the rotation stopper 160, and the shaft bolt coupled and fixed to the horizontal bent part 111 and 111' ( 170) and a fastening nut 171.

Here, the fixing bracket 110 is for mounting the tanji device of the present invention to the table frame, and the connection support 120 connects the fixing bracket 110 and the chair support arm so that the support arm is It is for rotation from the fixing bracket 110, and the thrust ball bearing 130 is for a smoother and smoother rotation in the process of rotating the connection support 120 from the fixing bracket 110, and the spring receiver ( 140) is rotated together with the connection support 120 or rotated with the connection support 120 as the compression torsion spring 150 is inserted and fixed to the connection support 120 and is firmly fixed to the lower portion of the connection support 120 using a bolt or the like. It serves to stop the rotational state of the connecting support 120, and the rotation stopper 160 serves to restrict the rotation of the connecting support 120 so that the chair in the drawn-out state does not flow. The shaft bolt 170 and the fastening nut 171 of the connecting support 120 and the thrust ball bearing 130, the spring receiver 140, the compression torsion spring 150 and the rotation stopper 160 are the fixing bracket 110 ) to play a role in binding them to each other.

In particular, one end corresponding to the upper side of the compression torsion spring 150 is constrained in the connection support 120 and the other end corresponding to the lower side is constrained by the rotation stopper 160, so that When the connecting support 120 is raised so that the upper portion of the thrust ball bearing 130 is in close contact with the lower surface of the upper horizontal bent part 111 of the fixing bracket 110 due to the elevation of the connection support 120 by the lifting force, the fixing bracket ( The rotation of the connection support 120 with respect to 110) can be made, and when the connection support 120 is forcibly rotated by the user's artificial force, a torsional compression force for the compression torsion spring 150 is generated, and the When the artificial force of the connection support 120 is automatically returned to its original position by the restoring force of the compression torsion spring 150, it is rotated.

In addition, when a user is seated in a chair in a state of being rotated out and a load is applied to the connecting support 120 through the support arm of the chair, the connecting support 120 compresses the compression torsion spring 150 by this load. It is to descend, and the stop protrusions 141 and 141 ′ on the bottom surface of the spring receiver 140 coupled to the lower portion of the connection support 120 correspond to the radial locking grooves 161 and 161 ′ on the rotation stopper 160 . Rotation of the connection support 120 can be prevented while being seated in the locking grooves 161 and 161 ′ at a position where the connection support 120 can be rotated and lifted in the up and down directions. This will create a state of association.

At this time, a stopping protrusion 112 is formed to protrude to one side of the fixing bracket 110 as described above, and a stopping protrusion that interferes with one side of the stopping protrusion 112 on the outer surface of the connecting support 120 ( 122) is formed to protrude, and the rotation of the connection support 120 with respect to the fixing bracket 110 is limited by the interference between them. Due to this, the connecting support 120 is only possible to rotate one side in the direction to be drawn out from the table, and in the process of the connecting support 120 in the rotated out state is rotated back by the compression torsion spring 150, the locking protrusion 122 is The rotation of the connecting support 120 is stopped due to the interference of the stop protrusion 112 to the pole, that is, the chair at the lower side of the table can be continuously maintained in its original position.

In addition, a plurality of fitting holes 113 and 113' are formed in the fixing bracket 110 so that a separately provided buffer member 114 using the fitting holes 113 and 113' is coupled, but the buffer The member 114 is made of rubber or an elastic material such as silicone or urethane, and on one side of the buffer member 114, coupling protrusions 115 and 115' that are press-fitted into the fitting holes 113 and 113' protrude. On the other side, a vertical protrusion 116 that protrudes from the inner surface of the fixing bracket 110 is formed, so that the connection support 120 in a state of being forced out and rotated by the user is prior to the fixing bracket 110 in the return rotation process. By configuring the arm coupling portion 121 of the connecting support 120 to first contact the vertical protrusion 116, it is possible to prevent noise and the like caused by the collision of the metal material.

At this time, the buffer member 114 can be used in combination with only one side of the fixing bracket 110, as described above, and if necessary, it is coupled to both sides to prevent noise and buffer from both during withdrawal rotation or return rotation. It may be configured to perform an action.

Next, a separate bearing seating cap 123 having a shaft insertion hole 124 formed in the center is coupled to the upper end of the connecting support 120 as described above, and a seating groove formed on the upper surface of the bearing seating cap 123 is formed. In 125, the upper end of the thrust ball bearing 130 is inserted so as to protrude upward from the upper surface of the bearing anchor cap 123, and the thrust ball bearing 130 may be fixed to the bearing anchor cap 123. will be.

At this time, by simply inserting the thrust ball bearing 130 into the seating groove 125, the thrust ball bearing 130 is inserted into the shaft bolt 170 in the upper horizontal bent portion 111 of the fixing bracket 110. ) because the upper side of the block is maintained, a separate fixing means or fixing operation is unnecessary, and when the connecting support 120 having an upward elastic force continuously rises by the compression torsion spring 150, the thrust ball bearing 130 ) is rotated together, and the thrust ball bearing 130 is kept in contact with the lower surface of the upper horizontal bent portion 111 of the fixing bracket 110, so that the connecting support 120 is connected by the thrust ball bearing 130 to the fixing bracket ( 110), a smoother and smoother rotation can be achieved.

Next, a plurality of assembly holes 111a are formed through the lower horizontal bent portion 111 ′ of the fixing bracket 110 , and an assembly protrusion 162 corresponding to the assembly hole 111a is formed on the bottom surface of the rotation stopper 160 . ) to protrude downward, so that the rotation stopper 160 to the fixing bracket 110 is mutually coupled to each other by the coupling of the assembly protrusion 162 to the assembly hole 111a, and the rotation stopper (160) may also be firmly fixed to the fixing bracket 110, and may maintain a simple coupling state by the assembly hole 111a and the assembly protrusion 162 as described above, and the rotation stopper 160 is It will only need to maintain a non-rotating state from the fixing bracket (110).

In addition, the compression torsion spring 150 is formed through a radial spring fitting hole 142, 142' in the upper portion of the spring receiver 140 as described above, and is selected in one spring fitting hole 142, 142'. ) is inserted, and radial spring insertion holes 163 and 163' are formed in the rotation stopper 160, and the compression torsion spring 150 is selected as one spring insertion hole 163, 163'. ) is configured to be inserted, and the upper and lower coupling positions of the compression torsion spring 150 with respect to the radial spring fitting holes 142 and 142 ′ and the spring insertion holes 163 and 163 ′ as described above. Accordingly, the compression tension force of the compression torsion spring 150 may be increased or decreased.

Therefore, since it is possible to add or subtract the compression tension force, it is possible to easily adjust the pull-out rotational force and the automatic return force in consideration of the size or weight of the table or chair, and the compression torsion spring 150 during repeated and long-term use. ), even when the resilient force of the compression torsion spring 150 is weakened by using any one or both of the spring fitting holes 1420 (142') and the spring insertion holes 163 and 162' as described above. Since it will be possible to increase the tanji, it is very reasonable in terms of maintenance while maximizing the service life of the tanji.

Accordingly, the tanji device of the present invention maintains the state as shown in FIG. 6 in which the connecting support 120 is raised by the reaction force of the compression torsion spring 150 in a state where the weight of the user does not act on the chair. While the chair is kept in the lowered state, when the chair is pulled outward by the user's need, the connecting support 120 coupled with the chair support arm to the arm coupling part 121 is the shaft bolt 170. It rotates about the central axis, and the chair is drawn out according to the rotation of the connecting support 120 , and at the same time, a torsional compression force is generated in the compression torsion spring 150 .

In such a state, if the force pulling out the chair is removed, the chair will be rotated back to the lower side of the table by the restoring force of the compression torsion spring 150, and if necessary, the user sits on the chair and consumes food. I will be able to freely carry out my studies or work.

In addition, as described above, when the user sits on the chair and the weight is transferred to the connecting support 120 through the chair and the arm coupling part 121, as shown in FIG. 7, the connecting support 120 descends while the compression torsion It is to compress the spring 150 downward, and with the descent of the spring receiver 140 according to the descent of the connection support 120, the stopping protrusions 141 and 141 ' on the bottom surface of the spring receiver 140 are rotated with a stopper ( 160) is inserted into the locking grooves 161 and 161' on the top.

Accordingly, as the spring receiver 140 coupled to the connecting support 120 is suppressed from rotating by the rotation stopper 160, the entire chair including the connecting support 120 is prevented from rotating. As a result, the user can obtain a stable sitting state without shaking the chair.

In addition, when it is necessary to change the sitting posture or adjust the position of the chair, the weight acting on the chair is temporarily removed, that is, the connecting support 120 rises and a rotatable state is produced only by a momentary motion, so the chair can be moved quickly and conveniently. After adjusting the position, when the body weight is applied to the seat again, the connecting support 120 is again in a state of suppressing rotation, and the chair can also continuously maintain a fixed position.

Therefore, the tanji device of the present invention is more efficient because it simultaneously has a rotation locking or fixing function so that the chair in the rotation withdrawal state can maintain the withdrawal position together with the existing elastic rotation and automatic return function, and is more efficient than the conventional tanji device. It can be said that it is very innovative and efficient because it has a simplified configuration as well as excellent durability.

The configurations shown in the embodiments and drawings as described above are only the most preferred embodiment of the present invention and do not represent all the technical spirit of the present invention, so various equivalents and modifications that can replace them It should be understood that there may be examples.

110: fixing bracket 111,111': horizontal bent part
112: stop projection 113,113': fitting hole
114: buffer member 115, 115': coupling projection
116: vertical protrusion
120: connection support 121: arm coupling part
122: locking projection 123: bearing seat cap
124: shaft insertion hole 125: seating groove
130: thrust ball bearing
140: spring receiver 141,141': stopper
142,142' : spring fitting ball
150: compression torsion spring
160: rotation stopper 161,161': locking groove
162: assembly projection 163,163': spring insertion hole
170: shaft bolt 171: fastening nut

Claims (6)

A fixing bracket 110 having horizontal bent portions 111 and 111 ′ on the upper and lower sides, and a connection support 120 inserted inside the fixing bracket 110 and having an arm coupling part 121 projecting on one side. and a thrust ball bearing 130 seated on the upper portion of the connection support 120 , a spring receiver 140 coupled to a lower portion of the connection support 120 , and the inside from the lower side of the spring receiver 140 . A compression torsion spring 150 inserted into a rotation stopper 160 fixed on the lower horizontal bent portion 111 ′ of the fixing bracket 110 , the connecting support 120 and the thrust ball bearing 130 and It is composed of a spring receiver 140, a compression torsion spring 150, and a shaft bolt 170 that is coupled and fixed to the horizontal bent part 111 and 111' through the rotation stopper 160,
One end is constrained in the connection support 120 and the other end is constrained by the elastic force of the compression torsion spring 150 constrained to the rotation stopper 160 so that the thrust ball bearing 130 is in close contact with the bottom surface of the upper horizontal bent part 111 . The connection support 120 is raised so that the forced rotation and automatic return of the connection support 120 with respect to the fixing bracket 110 are made, and the connection support 120 by the load acting on the connection support 120 . When the compression torsion spring 150 is descended, the stop protrusions 141 and 141 ′ on the bottom surface of the spring receiver 140 are placed in the radial locking grooves 161 and 161 ′ on the rotation stopper 160 , and the A chair support device for an automatic chair storage table, characterized in that it is configured to prevent rotation of the connection support 120 .
The method of claim 1,
A stopping protrusion 112 is formed inside the fixing bracket 110 , and a blocking protrusion 122 that interferes with one side of the stopping protrusion 112 is formed on the outer surface of the connecting support 120 , thereby interfering with each other. A chair support device for an automatic chair storage table, characterized in that the rotation of the connection support 120 with respect to the fixing bracket 110 is restricted by the .
The method of claim 1,
A plurality of fitting holes 113 and 113' are formed in the fixing bracket 110 so that a buffer member 114 provided separately using the fitting holes 113 and 113' is coupled, but the buffer member ( In the 114, coupling protrusions 115 and 115' that are press-fitted into the fitting holes 113 and 113' on one side protrude and on the other side, a vertical protrusion 116 that protrudes from the inner surface of the fixing bracket 110. Auto chair, characterized in that the arm coupling portion 121 of the connection support 120 is first contacted with the vertical protrusion 116 prior to the fixing bracket 110 during the rotation of the connection support 120 . Chair support device for storage table.
The method of claim 1,
A separate bearing seating cap 123 having a shaft insertion hole 124 formed in the center is coupled to the upper end of the connecting support 120 , and the seating groove 125 formed on the upper surface of the bearing seating cap 123 has the above A chair support device for an automatic chair storage table, characterized in that the upper end of the thrust ball bearing 130 is inserted so as to protrude upward from the upper surface of the bearing seat cap 123 .
The method of claim 1,
A plurality of assembling holes 111a are formed through the lower horizontal bent portion 111 ′ of the fixing bracket 110 , and the assembly protrusions 162 corresponding to the assembly holes 111a are downwardly formed on the bottom surface of the rotation stopper 160 . A chair tanji for an automatic chair storage table, characterized in that by protruding, the rotation stopper 160 to the fixing bracket 110 is coupled to the fixing bracket 110 by the coupling of the assembly protrusion 162 to the assembly hole 111a. Device.
The method of claim 1,
The upper end of the compression torsion spring 150 is inserted into one selected spring fitting hole 142, 142' by penetrating the radial spring fitting hole 142, 142' in the upper portion of the spring receiver 140. The lower end of the compression torsion spring 150 is inserted into one selected spring insertion hole 163, 163' by forming radial spring insertion holes 163 and 163' in the rotation stopper 160. to be, but
The compression tension force of the compression torsion spring 150 according to the upper and lower coupling positions of the compression torsion spring 150 with respect to the radial spring fitting holes 142 and 142 ′ and the spring insertion holes 163 and 163 ′. A chair tanji device for an automatic storage table for chairs, characterized in that it is configured to be added or subtracted.

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