JP3160966U - A device that turns the armchair of an office chair back - Google Patents

Abstract

An apparatus for turning an armrest of an office chair back, which can store the chair under a desk, is provided. A device for turning an armchair of an office chair backward, wherein a limit member is fixed to an upper end portion of a support post of an armrest, and the armrest is fixedly coupled with the limit member through a positioning member, and then the armrest is positioned. An elastic contact ball that can be pivotally attached between the member and the limit member and can be fitted into a plurality of localization holes provided at predetermined positions of the limit member on the armrest at the same time. [Selection] Figure 7

Description

  The present invention relates to the design of a device for turning the armchair of an office chair backward, and in particular, the armrest can be swung and adjusted left and right at different angles. The present invention relates to a seat that can be stored neatly on a desk.

  When an armchair is installed in a general office chair, most of the armrests adopt a fixed design, but there are also designs that are equipped with an up and down adjustment of the height on the armrest, and further slide control back and forth or swing control to the left and right Can also be done. Its purpose is that people of different heights can obtain an optimal and comfortable support for the arm of the person sitting through the adjusting action of the armrests.

  However, no matter how much the height of the armrest is adjusted, it hits the desk and the chair does not fit under the desk, so that the activity space is disturbed and cluttered.

  In order to improve the problem that the armrest of the chair does not fit under the desk by hitting the desk, the armrest of the chair provided by the present invention can be adjusted so that it can be rotated backwards. The room is not obstructed, so the chair can be stored under the desk.

  The technical method that the present invention adopts to solve this technical problem is that a limit member is fixed to the upper end of the armrest column, and the armrest is fixed to the limit member through the positioning member and then fixed. An elastic contact ball that is pivotally attached between the member and the limit member and can be fitted into a plurality of localization holes provided at predetermined positions of the limit member at the same time on the armrest is installed.

  For this reason, according to the above-described present invention, when the armrest is turned forward, the armrest can be rotated 180 degrees by rotating the armrest backward, in addition to being able to adjust the swing of the left and right angles by a predetermined angle. By turning it backward, the armrest does not hit the desk, and after the seat surface and legs of the chair are placed under the desk and stored, the space becomes even wider and organized.

  Therefore, the present invention can be fully understood and implemented by combining the following embodiments with the accompanying drawings.

It is a figure which shows the solid of this invention. It is a figure which shows the armrest decomposition | disassembly of this invention. It is a figure which shows another armrest decomposition | disassembly of this invention. It is an armrest side surface sectional drawing of this invention. It is a local enlarged view of A location of FIG. It is an overhead view of armrest angle swing of the present invention. It is a figure which shows the case where the armrest of this invention is turned back. FIG. 8 is a locally enlarged view of a portion B in FIG. 7.

  A description will be given with reference to FIGS. An armrest strut 1 is provided on each side of the chair of the present invention, an armrest 2 with an armrest cover 23 is installed at the upper end of each armrest strut 1, a limit member 3 is fixed on the top of the armrest strut 1, and A pivot portion 31 is protruded at the center of the limit member 3, and a rotation space 32 is further provided within a predetermined angle range of the outer periphery of the limit member 3. At the same time, stop portions 33 and 34 are formed at both ends of the rotation space 32, respectively. Is done. In addition, an abutment locking portion 21 that can be inserted into the rotation space 32 is provided at a predetermined position substantially outside the connecting portion between the armrest 2 and the armrest strut 1, and the pivot portion 31 can be penetrated in the center of the connecting portion. After the shaft hole 20 is provided and the pivot portion 31 penetrates the shaft hole 20, it is fastened to the positioning member 4, and the armrest 2 is interposed between the limit member 3 and the positioning member 4, so that the armrest 2 is pivoted. Rotating motion is performed with 31 as a fulcrum.

  Further, a stereotaxic hole 40 is provided in each of different positions on the front side and the back side of the bottom surface of the stereotaxic member 4, and at the same time, the stereotactic member 4 is provided with a concave groove 22 in the corresponding armrest 2. The spring 5 and the contact ball 6 are provided inside, and the contact ball 6 is pushed up via the spring 5 so that the contact ball 6 is elastically fitted into one of the localization holes 40, and thus the armrest 2. It is possible to receive a localization when the is shaken at a predetermined angle.

  Therefore, description will be made with reference to FIG. In a normal use state in which the armrest 2 is directed forward, the contact ball 6 can be fitted into different localization holes 40 by swinging inward or outward to make the armrest 2 tilted inward or outward. When the armrest 2 is shaken inward, the abutment locking portion 21 also hits the stop portion 33 of the limit member 3, thereby preventing the armrest 2 from being continuously swung inward. To do. In addition, when the armrest 2 is swung 180 degrees outward, the contact locking portion 21 can hit the location of the stop portion 34 of the limit member 3, and the contact ball 6 is further positioned behind the stereotaxic member 4. 7 and FIG. 8, after turning the armrest 2 backward, there is a space above the front seat surface of the chair, so that the seat surface and legs are It can be stored under the desk, increasing the activity space and further organizing the space.

DESCRIPTION OF SYMBOLS 1 Armrest support | pillar 2 Armrest 20 Shaft hole 21 Contact locking part 22 Recessed groove 3 Limit member 31 Axis part 32 Rotating space 33 Stop part 34 Stop part 4 Positioning member 40 Positioning hole 5 Spring 6 Contact ball

Claims (2)

It is a device that turns the armrest of the office chair backward, and an armrest that can be swung at the upper end of the armrest post is installed,
A localization member having a limit member fixed at the upper end of the armrest strut, a pivot portion protruding from the center of the limit member, and a plurality of localization holes recessed at predetermined angular positions on both the front and rear sides of the bottom surface Tighten the member to the upper end of the pivot part,
The armrest shaft is pivotally attached to the pivot portion of the limit member, interposed between the limit member and the localization member, and any one of the localization holes provided with a localization member at a predetermined position corresponding to the localization member is fitted. A device that turns the armrest of an office chair backward, characterized by installing an elastic contact ball that can be used.   Abutment locking portions are projected at predetermined positions on the bottom surface of the armrest, rotation spaces are provided within a predetermined angular range of the outer periphery of the limit member, and stop portions are formed at both ends of the rotation space, respectively. The apparatus for turning an armrest of an office chair backward according to claim 1, wherein the contact locking portion of the office chair can turn in the rotation space, and the contact locking portion can be restrained by the stop portion.

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