KR101679807B1 - Damper device with folding chair - Google Patents

Abstract

More particularly, the present invention relates to a chair folding apparatus having a damper function used in a retractable seat, and more particularly, to a chair folding apparatus having a main body 1, a main body 1, a lifting link 2, an operating lever 3, When the viewing chair is unfolded or folded through the structure of the lock plate 4, the locking link 5, the rotating plates 7 and 7 'and the damper cylinders 8 and 8' And it is an invention that enables the reception of the viewing chair to be performed quickly, accurately, and safely, especially in the folding (storage) operation of the retractable bleacher.

Description

[0001] Damper device with folding chair [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a folding apparatus for a viewing chair having a damper function, which is used in a retractable bleacher which is multi-tiered and folded and folded sequentially.

In general, the retractable seating table is composed of a mounting plate b2 positioned at a predetermined height by a support leg b1 and a plurality of viewing stalls a mounted on the upper surface of the mounting plate b2, (B1), (b2), (b3), and (b4) formed by connecting a plurality of unit grand stools (b1) And it is promoting efficient use of space in gymnasium, lecture hall, various theaters and event venues.

However, there was a great advantage in terms of space utilization as described above, but there was a lot of inconvenience and safety concerns in the use of the viewing chair because the folding function of the viewing chair composed of the unit seats was very poor, (In the above description, the names and reference numerals of the components constituting the retractable seats are the same as the names and reference marks shown in the drawings of the present invention). )

In detail, the conventional retractable grandstand comprises a plurality of viewing chairs on an installation board of a grandstand, and the installed base and the chair are interconnected by a hinge coupling means.

Therefore, in the conventional viewing chair, when the chair is folded unexpectedly, there is a high possibility of inconvenience of the use and safety. Especially when the various seats of the retractable seats are folded and stored in multiple stages, Since the viewing chair is folded strongly against the edge of the mounting plate of the upper unit, it has been pointed out that there is damage and damage due to mutual collision or strong folding and severe noise.

However, in order to solve the above problem, conventionally, prior to storing the grandstand in multi-tiers, the operator folded the viewing chair to prevent the above-mentioned mutual collision, which requires a lot of time and manpower, It fell very far.

Korean Patent Registration No. 0934128

An object of the present invention is to provide a folding device having a damper function as means for connecting an installation plate of a receptionist's chair to a viewing chair, And to ensure that the user's convenience and safety are maximized.

The apparatus for folding a viewing chair having a damper function according to the present invention as a means for solving the above problem comprises a main body 1, 1 'and a main body 1' having a rotation control hole 11 of the same shape, A lifting link 2 for lifting and lowering the transfer hole 21 of the central portion by a hinge to the inside of the main body 1 (1 ') and a sliding portion 31 at the upper end, An operation lever 3 coupled to an upper end of the ascending and descending link 2 and a lower end of the ascending and descending link 2 while coupling a central portion thereof with the hinge h into the body 1, A rotary link 4 for coupling the hinge h to the inside of the main body 1 and 1 'and a hinge h for connecting the center portion to the inside of the main body 1, 1' while hinging one end with the other end of the rotary link 4, And a spring (5) connected between one end of the lock link (5) and the main body (1) (1 ') to provide a certain elasticity to the lock link (5) 6), and (7 ') 7' constituting the lower leg 71 by positioning the lower leg 71 in the rotation control hole 11 of the main body 1 (1 ') while connecting the hinge (h) to the outer side of the main body 1 (1' And a viewing chair installation member 72 which is formed on the rotation plates 7 and 7 'so as to couple the viewing chair a to the outside of the main body 1 and 1' And a damper cylinder 8 connecting an end of the rotary shaft 81 to the rotary plates 7 and 7 '.

The present invention has the advantage of maximizing the ease of use and safety of a viewing chair from a retractable seating chair, and is particularly advantageous in that the folding for use of a viewing chair and the folding for storage are performed accurately at the most desirable angle, When the chair is opened and used, its unfolded state is firmly fixed, and there is an advantage that the safety of the user can be maximized.

Meanwhile, the present invention has a damper function as a folding device to reduce the folding speed when the viewing chair is folded so that it is very soft and slowly folded. This is because it prevents the safety accidents of nearby people that could occur due to the strong folding of the viewing chair, and also when the unit seats of the retractable seats are stored, the collision between the seats of the units and the seats and the strong folding of the seats Noise, and damage and damage caused by collision.

BRIEF DESCRIPTION OF THE DRAWINGS Fig.
2 is a partial side cross-sectional perspective view of the present invention,
3 is an operational example using the side sectional view of the present invention,
4 is a perspective view of the folded state of the present invention,
Fig. 5 is a view showing still another embodiment of the present invention,
FIG. 6 is a view showing a retractable bleacher to which the present invention is applied,
6 is a view showing a folded state of a retractable bleacher to which the present invention is applied.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

In the following description of the known technology, it is to be understood that the gist of the present invention may be blurred or abbreviated, and the same name shall be unified with one code.

The chair folding apparatus having a damper function according to the present invention includes a main body 1, a main body 1, a lifting link 2, an operating lever 3, a rotating link 4, (5), rotation plates (7) and (7 '), and damper cylinders (8) and (8').

To explain this in more detail,

1, the main body 1 or 1 'of the present invention has a rotation control hole 11 having the same shape as a surface and facing the rotation control hole 11 at regular intervals, And 11c are formed by connecting the engaging protrusions 11a and 11b with the curved embossing conveying path 11c while holding the engaging protrusions 11a and 11b on the upper and lower sides, respectively.

The lifting and lowering link 2 is positioned vertically on one side of the main body 1 and the main body 1 and the down link 2 is connected to the main body 1 by coupling the hinge h to the transfer hole 21 at the center, The transfer hole 21 is formed to have a predetermined length so that the ascending and descending link 2 is moved up and down from the hinge h by the length of the transfer hole 21. [ do.

The operation lever 3 is formed by forming a sliding part 31 at the upper end and connecting the lower end to the upper end of the ascending and descending link 2. The sliding part 31 is formed of an inclined surface or a curved surface .

The operating lever 3 is constituted by a roll 3 'which is coupled with the upper end of the lifting and lowering link 2 by a bearing as required.

The rotation link 4 is connected to the main body 1 or 1 'by being hinged to the central portion of the rotation link 4 horizontally at the central portion of the main body 1 or 1' The link (4) is characterized in that one end thereof is connected to the lower end of the ascending / descending link (2) and the hinge (h).

The locking link 5 is connected to the main body 1 or 1 'by being hinged to a central portion of the locking link 5 horizontally at the center of the main body 1, The link 5 is characterized in that one end thereof is hinged to the other end of the rotary link 4 and a lock groove 51 having a certain depth is formed at the other end.

The lock link 5 is formed with a coupling hole 52 having a predetermined length and connected to the rotary link 4 so as to be coupled with the hinge h so that rotation of the lock link 5 by the rotary link 4 And one side thereof is connected to the main body 1 (1 ') by a spring (6) to have a certain elasticity.

The rotary plates 7 and 7 'are provided on the outer side of the main body 1 and 1', respectively, while the center side is hinged, And the hook 71 is inserted into the locking groove 51 at the other end of the locking link 5 so as to be inserted into the rotation control hole 11, and a viewing chair installation portion 72 for joining the athletic chair a.

The lower ends of the damper cylinders 8 and 8 'are coupled to the lower outer side surfaces of the main body 1 and 1' and the ends of the cylinder rod 81 are connected to the upper portions of the rotating plates 7 and 7 ' .

Next, an embodiment of the present invention will be described.

First, a folding apparatus for a chair having a damper function according to the present invention is used as a conventional retractable bench (b) composed of multiple stages and sequentially opened and folded to provide a convenience and safety of the chair (a) to be.

In other words, as shown in FIG. 6, the conventional retractable seat (b) includes a mounting plate b2 positioned at a predetermined height by the support leg b1 and a plurality of mounting plates b2 disposed on the mounting plate b2 (B-1), (b-2), (b-3) and (b-4) constituting a plurality of unit grandstand seats (b- b-3) and (b-4) are sequentially deployed in a step-like fashion and each of the unfolded units is housed under the upper unit.

In the present invention, the lower end of the main body 1 (1 ') of the present invention is welded or bolted to one side edge of the mounting plate (b2) of the unit grandstand seats (b-1), The chair (a) is welded or bolted to the top of the plates 7 and 7 ', or the chair installation member 72 is further provided at the top of the rotation plates 7 and 7' So that the installation frame a1 of the viewing chair installation member 72 is inserted into the viewing chair installation member 72 and fixed.

2, the rotating plate 7 'is positioned vertically from one side of the main body 1 (1'), and at the same time, the legs 71 (71 ' Is engaged with the locking groove 51 at the other end of the locking link 5 while being caught by the locking protrusion 11b of the rotation control hole 11 formed in the main body 1 ) ≪ / RTI > 7 ').

The locked state of the rotating plates 7 and 7 'described above firmly maintains the unfolded state (usable state) of the chair (a) so as to provide convenience and safety for its use.

The other end of the lock link 5 is connected to the main body 1 and the spring 6 so that the lock groove 51 of the other end of the lock link 5 contacts the rotation plates 7 and 7 ' So that the strap 71 is firmly fitted and fixed.

For reference, the rotation control holes 11 formed in the main body 1 (1 ') are formed so that the upper and lower sides of the rotation control holes 11, that is, the rotation plates 7 and 7' And the upper end of the rotating plate 7 or 7 'on the upper side where the hangers 71 are positioned when the rotating plates 7 and 7' The hooks 71 are engaged with the upper and lower hooks 11a and 11b of the rotation control hole 11 when the rotation plates 7 and 7 ' So that it is interlocked with the jaws 11a and 11b so as not to deviate from a certain range (horizontal state or vertical state).

The above operation refers to the unfolded state of the chair (usable state), and the unfolded state of the chair (a) is firmly fixed with the rotation control hole 11 and the locking link 5 of the main body 1 (1 ' It is fixed and provides convenience and safety.

Meanwhile, the present invention is characterized in that, in addition to the unfolded state for use of the viewing chair (a), the retractable bleacher (b) for the purpose of utilizing space is provided with a plurality of unit viewstands (b1), (b2) Or manually folded and folded so that the viewing chair is automatically folded and stored simultaneously as shown in Fig.

Specifically, the retractable bleacher (b) has a plurality of unit grandstand seats (b1), (b2), (b3) and (b4) In the case of storage for space use, each of the above units should be stored under the unit.

Therefore, the present invention, which is installed at one side edge of the installation board b2 of the unit, is constructed such that, as shown in FIG. 6, in the process of accommodating one unit grandstand under the upper unit grandstand, The lever 3 is pushed downward in contact with the one side edge of the mounting plate of the upright unit grandstand and at the same time the ascending and descending link 2 connected to the operating lever 3 rotates the rotating link 4 at a predetermined angle .

The rotating link 4 connected to the lower end of the ascending / descending link 2 is hinged to the main body 1 or 1 'and rotated by seesaw operation. In addition, the operating lever 3 is provided at its central portion with a height adjusting hole 32 of a predetermined length so as to allow various adjustable fixing heights from the elevating and lowering links 2, The elevation adjustment hole 32 is formed to have a predetermined length so that the height of the operation lever 3 can be adjusted. This is for the purpose of appropriately adjusting the height of the operating lever 3 so that the upper end of the operating lever 3 can be easily contacted to the mounting plate b2 of the unit.

The operating lever 3 has a sliding portion 31 formed at an upper end thereof with an inclined surface or a curved surface so that the operating lever 3 can be easily pressed down by sliding contact with the mounting plate b2 of the unit grandstand, (3) is constituted by a roll (3 ') which is coupled with the up / down link (2) as required, so that the same operation as above can be performed.

When the operation lever 3 and the ascending and descending links 2 are rotated by pressing the rotating link 4 by the above operation, the locking link 5 connected to the other end of the rotating link 4 is rotated by the hinge h, While the other end locking groove 51 is disengaged from the bar 71 of the rotary plates 7 and 7 'so that the rotary plates 7 and 7' are unlocked.

Then, the rotation plates 7 and 7 ', which are locked by the above-mentioned action, are turned to one side by the center of gravity thereof, thereby forming the folding state of the viewing chair a.

When the bar 71 at the lower end of the rotation plate 7 or 7 'is released from the lock groove 51 of the lock link 5 as shown in FIG. 3, the main body 1 or 1' Shaped bar conveying path 11c formed in the rotation control hole 11 of the rotation control plate 11 and then engaged with the engagement step 11a on the upper side so that the rotation plates 7 and 7 '

When the rotary plates 7 and 7 'are rotated and have a folded state, the damper cylinders 8 and 8' are provided between the rotary plates 7 and 7 'and the main body 1' Are connected to each other to exert a damping force for the weight rotation of the rotating plates 7 and 7 'having the viewing chair a.

This is because the folding state of the viewing chair (a) and the rotating plate 7 (7 ') can be smoothly and slowly made, and the problem of the viewing chair which has been directly collapsed without any resistance, shock and noise, And to prevent safety accidents such as breakage.

Finally, when the unit grandstand is folded through a plurality of operations, the chair is accommodated between several unit grandstand as shown in FIG. 7, and the same effect as that of the conventional grandstand can be provided. In addition, the unfolding of the viewing chair is performed in reverse order by the spreading by the operator.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. That is, those skilled in the art will appreciate that many modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims. Accordingly, all such appropriate changes and modifications and equivalents may be resorted to, falling within the scope of the invention.

1,1 ': body 11: rotation control ball
11a, 11b: engaging chin 11c:
2: W / D link 21: Feeder
3: Operation lever 3 ': Roll
31: Sliding part 32: Height adjuster
4: rotating link 5: locking link
51: locking groove 52: engaging hole
6: spring 7, 7 ': rotating plate
71: leg 72: viewing chair installation member
a: viewing chair a1: installation frame
b: Retractable bleacher b1: Support leg
b2: Installation plate b-1, b-2, b-3, b-4:

Claims (3)

A main body 1 and a main body 1 having a rotation control hole 11 of the same shape and arranged at regular intervals and a transfer hole 21 at the center inside the main body 1 and 1 ' (2), a sliding portion (31) formed on an upper end thereof and a lower end connected to an upper end of the lifting link (2) A rotary link 4 connecting one end to the lower end of the ascending and descending link 2 with the hinge h while connecting the central portion thereof to the inside of the main body 1 ' A locking link 5 for hinging one end of the rotary link 4 to the other end of the hinge h while coupling the center of the locking link 5 to the hinge h, A spring 6 connected between the main body 1 and the main body 1 to provide a predetermined elasticity to the locking link 5 and a hinge h to the outer side of the main body 1, (71) in the rotation control hole (11) of the main body (1) (1 ') A viewing chair installation member 72 formed at the upper portion of the rotation plates 7 and 7 'for joining the viewing chair (a), a main body 1 And damper cylinders 8 and 8 'respectively installed at the outer sides of the cylinder rods 81 and connecting the ends of the cylinder rods 81 to the rotary plates 7 and 7' Folding chair.
The method according to claim 1,
The rotation control holes 11 are formed by connecting the engagement protrusions 11a and 11b with a curved engagement and conveyance path 11c while having engagement protrusions 11a and 11b on the upper and lower sides, A chair folding device having a damper function.
The method according to claim 1,
Wherein the slider (31) at the upper end of the operating lever (3) is formed of an inclined surface or a curved surface.

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