Office chair seat with adjustable inclination angle

Abstract

The invention relates to a device for an armchair seat, which is mounted between a seat and a base of an armchair and can be used in the furniture industry, in particular for producing an office chair seat with adjustable inclination. The inclination-adjustable office chair seat comprises a frame composed of two parts, a soft material is stretched between the two parts, and a first supporting piece and a second supporting piece are fixed on the frame through blind sleeves in a screw connection mode. Holes are formed in the two ends of the first supporting piece, the handle penetrates through the holes, an oval plate with holes is fixed beside the holes, a shaft is installed in the holes of the oval plate, and two longitudinal plates are fixed to the two ends of the shaft and connected with the first supporting piece and the second supporting piece. Holes are formed in the longitudinal plates, and the frame can be fixed to a chair base through bolt connection. The technical achievement aims to create the office chair which is simple and easy to use and has an adjustable inclination angle.

Description

Technical Field

[0001] The invention relates to a device for an armchair seat, which is installed between a seat and a base of the armchair and can be used in the furniture industry, in particular for manufacturing an office chair seat with adjustable inclination. Background Art

[0002] A device for adjusting the height and inclination of a car seat is known, comprising a seat cushion connected to a frame and a seat base, the seat base having a groove plate, the groove plate interacting with a spring clamp, the spring clamp being made of a bent crank-shaped rod, rotatably fixed to the frame, an intermediate frame rotatably mounted between the base and the seat cushion frame, the axes of these hinges being located in the longitudinal plane of the seat, the clamp being provided with hooks, and in addition, locking handles being located at both ends of these rods (patent certificate SU1044490A, IPCB60N1 / 06, published on September 30, 1983).

[0003] The disadvantages of this device are inconvenient operation and bulky design.

[0004] A device for changing the inclination angle of an armchair seat is known, suitable for fixing it between the seat and the chair support, the device comprising two three-shoulder double hinge elements of different sizes, each of which comprises a lower outer shoulder for fixing to the chair support, a lower hinge, a middle shoulder, an upper hinge and an upper outer shoulder, the upper outer shoulder is mounted to the seat through a fixing adapter, and comprises an arc plate for lifting the adjustment rod of the chair gas spring. In addition, the hinge arm of each three-shoulder double hinge element is made of a profile tube, and the hinge is in the form of a nut pair (patent RU220749U1, IPCA47C7 / 14, published on 2023.10.02).

[0005] The disadvantages of this device are complex structure and inconvenient operation. Summary of the invention

[0006] The purpose and technical achievement of the present invention is to provide an office chair seat which is simple to use and has an adjustable tilt angle.

[0007] To solve this problem, the present invention provides an office chair seat with adjustable tilt angle, which includes a frame consisting of two parts, a soft material is stretched between the two parts, the first and second support members are fixed to the two parts by blind sleeves with screws, the first support member is provided with holes at both ends, the handle passes through the holes, an elliptical plate with holes is fixed next to the holes, an axis is installed in the hole of the elliptical plate, two longitudinal plates are fixed at both ends of the axis, connecting the first and second support members, and holes are provided on the longitudinal plates for fixing the frame to the base of the chair by bolt connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A structural diagram of an office chair seat with a tilt angle adjustment device provided by the present invention. DETAILED DESCRIPTION

[0009] The essence of the invention is explained by a drawing showing the design of an office chair seat with a tilt angle adjustment device.

[0010] The seat of the office chair comprises a frame 1 consisting of two parts, between which a soft material is stretched (not shown). On the two parts of the frame, a first support 3 and a second support 4 are fixed by screws via blind sleeves 2 to form a rigid structure. On the first support 3, holes 5 are installed at both ends, through which handles 6 pass, and next to the holes an oval plate 7 is fixed, which is provided with a hole for mounting an axis 8. Two longitudinal plates 9 are fixed at both ends of the axis 8 to connect the first and second supports. The longitudinal plates are provided with holes, which can be fixed to the base of the chair by bolting (not shown).

[0011] The handle 6 forms a node with the shaft 8 fixed thereto for adjusting the inclination angle of the front part of the seat. When the handle 6 is turned, the oval plate 7 rotates, thereby changing the angle between the seat frame 1 and the longitudinal plate 9 connected to the chair base.

[0012] The proposed armchair seat with a tilt angle adjustment device is simple and reliable in design and easy to operate.

Claims

1. An office chair seat with adjustable tilt angle, characterized in that: The utility model comprises a frame composed of two parts, between which a soft material is stretched, and the first and second support members are fixed on the two parts by screw connection through blind sleeves, and holes are installed at both ends of the first support member, and the handle passes through the holes, and an oval plate is fixedly connected beside the holes, and a hole is provided on the oval plate, and an axle is installed in the hole, and two longitudinal plates are fixed at both ends of the axle to connect the first and second support members, and holes are provided on the longitudinal plates for fixing the frame on the base of the chair by bolt connection.

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