JP3155913U - Connecting device between chair and table plate, and chair having table plate via this connecting device - Google Patents

Abstract

A table plate that is connected to an armrest of a chair and can be hanged between armrests by a human operation is detachable from the armrest as required, and the presence or absence of an auxiliary table is freely selected. Get a chair that can. A mounting plate 2 fixed to the back surface of the table plate and a locking body 3 that can be engaged with and disengaged from the armrest and can be rotated in the circumferential direction of the armrest are provided. A support hole 4 in which the hole diameter on the mounting surface side to the plate is larger than the hole diameter on the opposite surface side opposite to the mounting surface is provided, and the rotating plate rotatably supported by the support hole 4 is the mounting plate. The rotating plate 5 has an opening having the same thickness as the mounting plate 2, and the rotating plate 5 has an opening, and a locking body 3 having the same thickness as the mounting plate 2 is supported in the opening so as to be raised and lowered. The latch 3 is flush with the rotating plate 5 when the latch 3 is depressed in the opening. [Selection] Figure 1

Description

  The present invention relates to a connecting device used for attaching a table plate spanned between armrests to a chair having a pair of round bar-like armrests, and a chair having a table plate via the connecting device.

  Conventionally, a table board is attached to an armrest of a chair so that a seated person can perform a light work such as taking a note, or can take a meal with dishes. For example, in Patent Document 1, a table plate having legs that can be extended on the back side of a plate is provided on one armrest, and the table plate is connected by being rotatable around a direction along the longitudinal direction of the armrest. In addition, in Patent Documents 2 to 5, a table board arranged to hang down on the side of the armrest via a pivot or a multi-axis rotation shaft is placed on the knee or armrest of the person who is seated. There has also been proposed a device that draws out between the two.

Japanese Patent Laid-Open No. 10-262739 Japanese Unexamined Patent Publication No. 09-121978 Japanese Patent No. 3036294 JP 2002-209670 A JP 2007-068826 A

However, the conventional mechanism that connects the armrest and the table board of the chair so that the table board can be moved between the armrests can move to a position where the table board is placed between the armrests. Furthermore, there is a big problem that the table plate cannot be removed from the armrest.
Therefore, in view of the above circumstances, the present invention has an object to allow a table plate that is connected to an armrest of a chair and can be spanned between armrests by a human operation to be detached from the armrest as necessary. And it aims at providing the chair which can select freely the presence or absence of an auxiliary table.

  The present invention has been made in consideration of the above problems, and is an apparatus for connecting a round bar-shaped armrest of a chair and a table plate having a length that can be passed between the arm races, A mounting plate that is fixed to the back surface and a locking body that can be engaged with and disengaged from the armrest and that can rotate in the circumferential direction of the armrest, and the mounting plate has a circular hole that penetrates the mounting plate A support hole having a hole diameter on the mounting surface side to the table plate larger than a hole diameter on the opposite surface side opposite to the mounting surface is provided and is rotatably supported by the support hole. The rotating plate has the same thickness as the mounting plate and is flush with the mounting plate, and the rotating plate has an opening in which the locking body having the same thickness as the mounting plate can be raised and lowered. The locking body is rotated when the support body is lying in the opening. Providing a coupling device between the chairs and tables, characterized in that it comprises a structure comprising a plate flush, it is to solve the above problems.

  In the present invention, the rotating plate and the locking body are formed of a synthetic resin molding material, and the locking body is connected to the side of the opening of the rotating plate via a self hinge. Is good.

  Another idea is that a round bar-shaped armrest with a protruding end as a large-diameter portion is retractably stored in a pipe armrest cover, and left and right arm rests that extend and retract when the round bar-shaped armrest is inserted and removed. The arm rest is provided with a round bar-shaped armrest in the armrest cover of each armrest portion, and the armrest cover is provided with a chair so that the large-diameter portion of the armrest can be abutted against the tip of the armrest cover. The chair according to claim 1 or 2, wherein the latching body is sandwiched and held between the tip of the armrest cover and the large diameter portion of the armrest stored in the armrest cover. To solve the above problems.

  According to the coupling device of the present invention, the rotating plate supported rotatably on the mounting plate fixed to the table plate is provided with a simple structure in which a locking body for mounting on the armrest is provided so as to be undulated. The connecting device itself can be made inexpensively and does not raise the price of the chair. Furthermore, since the latching body is detachable from the armrest, when the table plate is not used, it can be removed and used as an ordinary chair. In addition, according to the chair of the present invention, each arm rest part has a round bar-shaped armrest, so that the table plate can be easily connected and arranged on the arm rest part side preferred by the user. It is what you play.

Next, the present invention will be described in detail based on the embodiment shown in FIGS.
In the figure, reference numeral 1 denotes a connecting device for connecting a round bar-shaped armrest 9 of a chair 8 and a table plate a having a length that can be passed between the arm races 9 as shown in FIGS. In order to obtain a chair 8 that can be used by connecting the table plate a spanning between the armrests 9 of the chair 8 to one armrest 9 via the connecting device 1 and placing it on the other armrest 9. It is the connection device for doing.

  As shown in FIG. 4, the connecting device 1 has a mounting plate 2 that is fixed to the table plate a by a known method so as to be flush with the back surface b on one end side of the back surface b of the table plate a. The locking device 3 is provided so as to be able to undulate at the central portion of the coupling device 1 and can be raised up to an angle perpendicular to the back surface b of the table plate a. The mounting plate 2 has a support hole 4 that is a circular hole penetrating in the center. A rotating plate 5 having the same thickness as that of the mounting plate 2 is rotatably disposed in the support hole 4 as a disk, and the rotating plate 5 is attached to the mounting hole 2 of the mounting hole 2 fixedly attached to the table plate a. The support hole 4 supports the rotating plate 5 so that the rotating plate 5 does not come out of the support hole 4 while being able to rotate in a state of being flush with 2.

  Specifically, the hole diameter of the support hole 4 on the side of the mounting surface 2a to the table plate a is on the opposite surface 2b (surface that is flush with the back surface of the table plate) side opposite to the mounting surface 2a. In the illustrated embodiment, the inner peripheral surface 4a of the support hole 4 is inclined, and the outer periphery of the rotating plate 5 corresponds to the inclined inner peripheral surface 4a. The surface 5a is also inclined, and the inner peripheral surface 4a of the support hole 4 and the outer peripheral surface 5a of the rotating plate 5 are in contact with each other in a slidable state. Since the rotating plate 5 only needs to be rotated by the support hole 4 while preventing the rotating plate 5 from coming out of the support hole 4, the inner peripheral surface 4a of the supporting hole 4 and the rotating plate that are in contact with each other. The outer peripheral surface 5a of the support plate 4 is not limited to an inclined surface, and the shape of the inner peripheral surface 4a of the support hole 4 is stepped as shown in FIG. A stepped shape may be used.

  The locking body 3 is provided on the rotating plate 5 described above. For example, as shown in FIGS. 1, 2, 4, and 5, the rotating plate 5 is formed in an opening 6 formed at the center of the rotating plate 5. The locking body 5 having the same thickness as that of the substantially C-shape is arranged to be undulated. The locking body 5 is connected to one side of the opening 6 via a self hinge 7. The locking body 5 is stored in the opening 6 by being tilted into the opening 6 with the self hinge 7 as a center of rotation. 5 (see FIG. 3), and when it is raised, it is provided to occur up to an angle that is perpendicular to the back surface b of the table plate a (see FIG. 5). Thus, in order to connect the locking body 3 and the rotating plate 5 via the self hinge 7 and the locking body 3 undulates around the self hinge 7, The plate 5 may be integrally formed with a synthetic resin material. Further, even the mounting plate 2 that supports the rotating plate 5 may be formed by synthetic resin molding.

  The locking body 3 has elasticity that expands between the end portions on the open side, and can be engaged with and disengaged from the armrest 9 of the chair 8 by opening between the end portions on the open side. Further, the substantially C-shaped gripping portion 3a of the locking body 3 has an inner peripheral shape that corresponds to the cross-sectional shape of the armrest 9 on which the gripping portion 3a is hung, and is rotatable in the circumferential direction of the armrest 9 Lock. Of course, after the locking body 3 is hooked on the armrest 9, the locking body 3 can move along the length of the armrest 9.

  As described above, the locking body 3 is detachably attached to the armrest 9 by opening between the end portions on the open side, but the armrest 9 is attached to the armrest 9 so that the latching body 3 can be easily latched and removed. A mounting groove 10 may be provided as shown in FIG.

  In the chair 8 having the table plate a to which the coupling device 1 is attached, the round bar-shaped armrest 9 is retractably stored in the armrest cover 11 made of a pipe, and expands and contracts by taking in and out the round bar-shaped armrest 9. Left and right arm rests 12 are provided, and the round bar-shaped armrest 9 has a large-diameter part 13 on the tip side. When the round bar-shaped armrests 9 of the arm rests 12 are stored, the tip of the armrest cover 11 is stored. The large-diameter portion 13 of the armrest 9 is provided so as to be able to abut. The state where the armrest 9 is retracted is shown in FIG.

  When assembling the table board a to the chair 8, the armrest 9 of the arm rest portion 12 is once pulled out and moved to the distal end side of the armrest 9 so that the locking body 3 of the coupling device 1 is inserted into the position of the mounting groove 10. Then, the armrest 9 is pushed into the armrest cover 11 again, and the grip portion 3a of the locking body 3 is sandwiched between the large-diameter portion 13 of the armrest 9 and the distal end portion 14 of the armrest cover 11 Hold. As a result, the locking body 3 can be securely held on the chair 8 side, and the table plate a can be arranged on the armrest 9 in the vertical direction next to the chair 8 via the connecting device 1 as shown in FIG. .

  Thereafter, as shown in FIGS. 11 and 12, the table plate a is moved to both the table plate a by performing the rotation of the locking body 3 in the circumferential direction of the armrest 9 and the rotation of the rotating plate 5 with respect to the mounting plate 2. It can be bridged between the armrests 9. In the table plate a, a concave groove 15 is provided in a portion corresponding to the other armrest 9 when the table plate a is spanned, and the large-diameter portion 13 of the other armrest 9 is drawn and positioned. It is designed so that the table plate a is stabilized by riding on two points of the arm rest portion 12 and the large-diameter portion 13 from which a part of the arm rest 9 is pulled out and the other armrest 9 is pulled out.

BRIEF DESCRIPTION OF THE DRAWINGS It shows one Example of the connection apparatus of the chair which concerns on this invention, and a table board, (a) is explanatory drawing which shows the opposing surface side on the opposite side to a mounting surface, (b) is (a) XX. Explanatory drawing which shows the cross section along a line, (c) is explanatory drawing which shows the cross section along the (a) YY line. It is explanatory drawing which shows the attachment surface side of one Example. FIG. 2 is a diagram illustrating a modification of the cross-sectional shape of the peripheral surface of the support hole and the cross-sectional shape of the peripheral surface of the rotating plate, and is an explanatory diagram illustrating a cross-section at the same portion as that of FIG. It is explanatory drawing which shows the state which attached one Example to the table board. Similarly, it is explanatory drawing which shows the state which one Example attached to the table board and caused the latching body. It is explanatory drawing which shows the example by which the installation groove | channel is provided in the armrest. It is explanatory drawing which shows the state which latched on the armrest in one Example. It is explanatory drawing which shows the state which stored the armrest. It is explanatory drawing which shows the chair which has stored the armrest. It is explanatory drawing which shows the state which extended | stretched one armrest and attached the table board. It is explanatory drawing which shows the state which raised the attached table board. It is explanatory drawing which shows the state which spanned the table board on the armrest.

DESCRIPTION OF SYMBOLS 1 ... Coupling device 2 ... Mounting plate 2a ... Mounting surface on the table plate side of mounting plate 2b ... Opposite surface with respect to mounting surface 3 ... Locking body 3a ... Holding part 4 ... Support hole 5 ... Rotating plate 6 ... Opening 7 ... Self Hinge 8 ... chair 9 ... armrest 10 ... mounting groove 12 ... arm rest part 13 ... large diameter part 14 ... tip of armrest cover a ... table plate

Claims (3)

A device for connecting a round bar-shaped armrest of a chair and a table plate having a length that can be passed between the arm races,
A mounting plate that is fixed to the back surface of the table plate, and a locking body that can be engaged with and disengaged from the armrest and that can rotate in the circumferential direction of the armrest, and the mounting plate includes the mounting plate. A through hole is provided, and a support hole having a hole diameter on the mounting surface side of the table plate larger than the hole diameter on the opposite surface side opposite to the mounting surface is provided, and the support hole rotates. The rotating plate that is freely supported has the same thickness as the mounting plate and is flush with the mounting plate, and the rotating plate has an opening, and the opening has the same thickness as the mounting plate. An apparatus for connecting a chair and a table board, wherein the body is supported so that it can be raised and lowered, and the locking body is flush with the rotating plate when the support body is lowered in the opening.   The chair and table board according to claim 1, wherein the rotating plate and the locking body are formed from a synthetic resin molding material, and the locking body is connected to the side of the opening of the rotating plate via a self hinge. Connecting device with. A round bar-shaped armrest with a protruding end as a large-diameter part is retractably stored in an armrest cover made of pipe, and left and right armrests that extend and retract when the roundbar-shaped armrest is inserted and removed. The armrest cover is a chair provided so that the large-diameter portion of the armrest can be abutted against the tip of the armrest cover when a round bar-shaped armrest is stored in the armrest cover,
The locking body in the coupling device according to claim 1 or 2, which is hooked on the round bar-shaped armrest, is sandwiched and held between the tip of the armrest cover and the large-diameter portion of the armrest stored in the armrest cover. Chair.

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