KR0140322Y1 - Armrest table - Google Patents

Abstract

The present invention relates to a table device for chairs, which allows the table placed on the armrest of the chair to be rotated upward or horizontally according to the user's convenience, making it easy to use and its structure is simple, long life and production cost. In order to make this reduction, the coupling member 31 of the coupling member 30 is coupled to the coupling member 20 fixed to one armrest of the chair by the first shaft pin 40 so as to rotate only in the 90 ° range and this connection The supporting surface 35 of the member is attached to the support member 50 by the second shaft pin 40 'so as to be rotated only in the 180 ° range, and the table is mounted on the support member.

Description

Chair table units

1 is an exploded perspective view of an embodiment of the present invention.

2 is a perspective view of the assembly.

3 is a perspective view of the installation state.

4 to 6 are excerpts of each part showing the state of use.

* Explanation of symbols for main parts of the drawings

20: coupling member 22: shaft pin hole

23: control protrusion 25: isolation

26,26 ': Fastener 30: Connecting member

31: bonding piece 32: elastic support plate

33,33 ': Shaft through hole 34,34': Jamming jaw

35: engaging surface 36: shaft pin hole

37: control protrusion 38: spacing adjustment screw

40,40 ': 1st, 2nd axis pin 41: Tightening screw

50: support member 51: mating surface

53: shaft through hole 54: obstruction protrusion

60: table

The present invention relates to a table device for chairs, and more specifically, it can be used as a table if it is placed on the armrest of the chair and rotates upward to become a horizontal state. For table devices.

In the past, the table was fixed to the armrest of the chair, which had a drawback of being inconvenient to use when it was not on the chair or when it happened, and the chairs could not overlap each other, thus occupying a lot of space during storage or transportation. There were also disadvantages such as being.

In addition, in order to solve these problems, it was devised to lay the table on the armrest in a rotational manner, but in this case, the structure is very complicated and there are many parts and assembly labor, so that the production cost increases, and the table is oriented in one direction. Rotation operation was very inconvenient because it was to be rotated only in this way. Also, this caused a phenomenon that the motor was forcibly rotated in the non-rotating direction. .

The present invention has been devised in view of the above-mentioned conventional points, and an object thereof is to provide a table device for a chair in which production cost is reduced and it is very convenient to use.

Another object of the present invention is to provide a table device for chairs with a long life.

This object of the present invention is achieved by providing a table device for a chair that is simple in structure, low in number of parts, and which can be rotated in both directions, and the table device is coupled between the fixings mounted on the armrests of the chair. The member, the connecting member which is condensed to the rotating material within the range of approximately 90 ° to the tip of the coupling member, and the supporting members that are condensed to the rotating material within the approximately 180 ° range to the engaging surface of the connecting member and the table is mounted It is composed.

The coupling member is provided with a coupling hole between the fixed cross section polygonal, and a control protrusion for controlling the rotation angle of the connection member.

The connection member has locking jaws caught by the control protrusion of the coupling member, and a control protrusion which controls the rotation angle of the support member.

The supporting member is provided with a locking protrusion caught on the control protrusion of the connecting member.

Therefore, when the coupling member is coupled between the fixed, the member is fixed without rotation, the connection member is fixed to the coupling member so that the rotation angle is controlled by the locking jaws caught on the control protrusion, the support member is caught on the control protrusion The rotation angle is controlled by the locking protrusion is controlled to the connection member and at the same time the connection member and the support member are to be rotated in different directions so that the table can be rotated in both directions.

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

Chair table device according to the embodiment of the present invention, the inlet is formed in the longitudinal direction so that the coupling opening 21 is inserted into the fixed seat 12 installed on the armrest 11 of the chair 10 to the rear end and the front end surface (20 ') the shaft pin hole 22 is installed through the coupling hole 21 in the center, the outer peripheral surface of the engaging member 20, the control protrusion 23 is formed to protrude in an arc, the front end surface of the coupling member (20) ') And the shaft through-hole 33 of the first shaft pin 40 to penetrate the shaft pin hole 22 is installed in the center of the elastic support plate 32 is coupled to the coupling portion 31 in surface contact with the coupling piece ( 31, both sides of the outer periphery of the control projections 23, the engaging projections 34, 34 'which are selectively caught on the control projections 231, 231' are projected and perpendicular to the coupling portion 31 Coupling surface (35) is provided with a shaft pin hole (36) drilled on the outer circumferential side of the shaft pin hole, the connecting member (30) protruding in an arc shape, and The engaging portion 52 of the control protrusion 37 is formed in a concave concavity in the front end portion 51, which is coupled to the engaging surface 35 of the connecting member, and through the shaft pin hole 36 is fastened to the center of the engaging portion. The through hole 53 of the second shaft pin 40 'is drilled and installed, and at the inner circumference, the locking jaws 541 and 541' at both ends of the control projections 371 and 371 'of the control protrusion 37 are optional. The engaging protrusion 54 is formed to protrude in an arc shape and the other side is composed of the supporting members 50 to install the table 60.

The coupling member 20 has a cylindrical shape, and the inner end surface of the coupling sphere 21 is formed to be the same polygonal shape as the fixing rod 12 to be fixed so as not to rotate.

And, on the outer circumferential surface, a support protrusion 24 supporting the inner portion of the coupling surface 35 of the connection member 30 protrudes in an arc shape.

In addition, the isolation section 25 is installed by cutting in the longitudinal direction from the rear end to the vicinity of the tip, and fastening pieces 26 and 26 'having fastening holes of the fastening screw 41 are protruded on both sides of the isolation section. .

Therefore, even if the inner diameter of the coupler 21 is slightly smaller than the outer diameter of the fixing rod 12, when the two are combined with each other, the isolation portion 25 is opened so that they are easily coupled, and after the coupling piece 26 When the fastening screw 41 is fastened to the fastening holes of the 26 ′, the gap between the isolation portions 25 is tightened, so that the coupling member 20 is firmly fixed to the fixed interval 12.

On the other hand, the control protrusion 23 protrudes such that the length of the protruding arc L is about 90 ° about the axis pin hole 22, that is, about one quarter of the circumference.

The outer end portion of the engaging piece 31 of the connecting member 30 is an arc of the same diameter as the circumference of the engaging member tip surface 20 ', and engaging projections 34 and 34' protruding from the outer circumferential surface of the engaging piece 31. ) Are installed to maintain approximately 180 ° spacing (l ').

Therefore, when the front end surface 20 'and the coupling piece 31 are coupled, the control protrusion 23 is positioned between the locking projections 34 and 34', and at this time, the protrusion length ℓ and the locking of the control protrusion are locked. By the gap l 'difference between the jaws 33 and 33', a space l '' of approximately 90 degrees is formed between them.

Accordingly, the connecting member 30 is rotated only within this space (l ''), and the locking jaw 34 at both ends of the control projections 231 and 231 'of the control protrusion 23 according to the rotation direction thereof. 34 'may be selectively hung.

In addition, since any one of the locking jaws 34 and 34 'forms a spiral sphere to fasten the spacing adjusting screw 38 thereto, the space between the locking jaws 34 and 34' depends on the fastening degree of the screw. By allowing l 'to be adjusted, the rotation range of this connecting member 30 is adjustable within 90 degrees.

The elastic support plate 32 is bent into a metal plate in the shape of a 'N', and the one end of the first shaft pin 40 coupled to the shaft through-hole 33 through the shaft pin hole 22 of the coupling member 20 through the riveting By fastening, the connecting member 30 and the engaging member 20 are condensed for rotation by this shaft pin.

In addition, the second end of the elastic support plate 32, the second shaft pin (40 ') to be coupled to the shaft through hole 53 of the support member 50 is installed by drilling the shaft through hole (33') in accordance with the shaft pin hole (36). One end of the axial pin hole 36 and the axial through hole 33 ′ by riveting and fastening, the support member 50 and the engaging surface 35 is condensed for rotation.

On the other hand, the control protrusion 37 causes the projected arc length f to be approximately 90 degrees, i.e., about one quarter of the circumference, around the shaft pin hole 36.

The radius of the coupling portion 52 to which the control protrusion 37 is coupled is equal to the radius between the shaft pin hole 36 and the control protrusion 37, so that the outer circumferential surface of the control protrusion 37 is coupled to the coupling portion 52. The circular arc length f 'of the locking protrusion 54 protruding from the inner circumferential surface of the engaging portion is approximately 90 ° with respect to the shaft through-hole 53, that is, one quarter of the circumference. Let it be enough.

Therefore, when the control protrusion 37 is coupled to the coupling portion 52, the inner circumferential surface of the coupling portion 52 is about 180 ° by the arc lengths f (f ') of the control protrusion and the locking protrusions 54. Space is left.

In other words, when the support member 50 is rotated, the locking projections 541 and 541 'at both ends of the locking protrusion 54 are controlled at both ends of the control protrusion 37 in accordance with the rotation direction. ), So that the supporting member 50 can be rotated only within a range of about 180 ° in a state of being stuck to the mating surface 35, since the movement interval of the filter is selectively filtered. do.

The chair table apparatus according to the embodiment of the present invention configured as described above has two types of operation methods when the table 60 is rotated upward to maintain the horizontal state. As shown in the imaginary line of FIG. 4A, in the state in which the table 60 is vertically folded close to the side of the chair 10, the connecting member 30 centering on the first shaft pin 40. Rotating upward, the support member 50 and the table 60 mounted on the member rotate upward together.

At this time, as shown in (b) of FIG. 4, the locking jaw 34 of the coupling pin 31 is hooked to the control jaw 231 ′ of the control protrusion 23, so that the connection member 30 has a gap therebetween. That is, it is only rotated upward by 90 ° and stopped.

In this case, the table 60 is in a horizontal state toward the outside of the chair 10, and then the armrest 11 as shown in FIG. 5 with the support member 50 centered on the second shaft pin 40 '. When rotated horizontally toward the inside of the table 60 is rotated together so that the table is placed horizontally in front of the upper portion of the chair 10 as shown in FIG.

Of course, at this time, as shown in (b) of FIG. 5, the locking projection 541 'of the locking protrusion 54 is hooked to the control protrusion 371, so that the supporting member 50 has a gap therebetween, that is, 180 °. The table rotates only at an angle and stops, so that the table 60 is placed to be suitable for use by the user sitting on the chair 10.

However, in the first operation method, when the table 60 is rotated upward, the table 60 may be raised to the side because the table 60 is raised to the side of the chair 10 when the table is initially raised in the vertical state. There must be enough space.

Meanwhile, in the second operation method, as shown in the imaginary line in FIG. The base member 50 is rotated upward with respect to the center to allow the table 60 to rotate upward in a vertical state.

In this case, the locking jaw 541 ′ of the locking protrusion 54 is caught by the control jaw 371 of the control protrusion 37 so that the support member 50 rotates upward only within the interval therebetween, that is, the 180 ° angle range. do.

Next, as shown in FIG. 6, when the connecting member 30 is rotated upward with respect to the first shaft pin 40, the supporting member 50 is in a horizontal state in a vertical state, and at this time, the locking jaw ( Since the 34 ') is caught by the control jaw 231', the connecting member 30 is rotated upward only within the interval therebetween, that is, the 90 ° angle range, so that the table 60 can be used as shown in FIG. It is to be placed horizontally above the chair 10 suitably.

On the other hand, when the table 60 is not used, the above two kinds of operation methods which were rotated upward for the use of the table may be operated in reverse order, so that the table 60 is brought downward to the side of the chair 10 so as to be in a vertical state. .

That is, in the first operation method, as shown in FIG. 5 (a), the support member 50 is rotated 180 degrees outward, and as shown in FIG. 4 (a), the table 60 has an inner side of the armrest 11. When rotated horizontally from the position to the outer position, and then rotate the connecting member 30 by 90 ° downward, the table 60 is in a vertical state and close to the side of the chair 10.

Of course, the support member 50 is rotated only by 180 ° in this process is the interval between the locking jaw 541 and the control jaw (71 ') to be caught when the support member is rotated to the outside Since it is 180 degrees, it is determined by these interval ranges.

In addition, since the distance between the locking jaw 34 'and the control jaw 231 in which the locking jaw is caught is 90 °, the connection member 30 rotates downward only by 90 °. do.

Meanwhile, in the second operation method, as shown in FIG. 6 (a), when the connecting member 30 is first rotated downward by 90 °, the supporting member 50 is erected vertically, and then, as shown in (b). When the support member 50 is rotated downward by 180 °, the table 60 is vertically close to the side of the chair 10.

As described above, the chair table apparatus according to the embodiment of the present invention which rotates the table upward or downward by the operation method has an advantage in that the structure is simple and the number of parts is small, thereby reducing the production cost.

Particularly, when the user wakes up from the chair, the user can push the table forward to rotate horizontally or upwardly, depending on convenience.

Claims (5)

Coupling is fixed to the armrest of one side of the chair and the shaft pin hole 22 is installed in the front center of the front end, and the outer peripheral surface of the engaging member (20) is formed in the arcuate protrusion 23 and the front and front surface of the coupling member The coupling piece 31 is coupled to the elastic support plate 32 formed with the shaft through hole 33 and the coupling surface 35 on which the shaft pin hole 36 is formed are integrally formed orthogonally to each other, On the outer circumferential surface, engaging jaws 34 and 34 ', which are selectively hung on both ends of the control protrusion 23, are formed to be separated at appropriate intervals, and the coupling surface 35 is formed on the circumference around the shaft pin hole 36. The control protrusion 37 is connected to the connecting member 30 and the shaft pin hole 22 and the shaft through-hole 35 formed to protrude in an arc shape to condense the connecting member 30 and the coupling member 20. The first shaft pin 40 and the coupling surface 51 which is surface-coupled with the coupling surface 35 is provided with a shaft through-hole 53 is installed through the through-hole On the circumference of the center, the locking protrusions 54, which are selectively caught at both ends of the control protrusion 37, are formed in an arc shape, and the support member 50, on which the table 60 is mounted, and the shaft pin hole ( And a second shaft pin (40 ') for binding the support member (50) and the connection member (30) by binding through the shaft (36) and the shaft through hole (53). The protrusion length (l) of the control protrusion 23 is about 90 ° about the circumference of the axial pin hole 22, and the distance between the locking projections 34 and 34 '. (L ') is approximately 180 degrees on the circumference centering on the shaft through-hole 33, and the protruding length f of the control protrusion 37 is approximately 90 degrees on the circumference around the axial pin hole 36. And the protrusion length (f ') of the locking portion (54) is approximately 90 degrees on the circumference around the shaft through-hole (53). The fastening piece according to claim 1, wherein the rear end portion of the coupling member (20) is formed with an insulated portion (25) cut in the longitudinal direction, and fastening holes of the fastening screw (41) fastening the gap between the isolated portions on both sides of the isolated portion. (26) (26 ') is a table device for chairs, characterized in that protruding. The chair table device according to claim 1 or 2, wherein the locking jaw (34) forms a spiral sphere to fasten the spacing adjusting screw (38) to the spiral sphere. The method of claim 1, wherein the elastic support plate 32 is formed by bending the metal plate in the shape of a letter, axial through-hole 33 at one end, the end of the second shaft pin (40 ') through the shaft through-hole A table device for chairs, characterized in that a 33 'installation is provided.