CN111374465A

CN111374465A - Seat extension board

Info

Publication number: CN111374465A
Application number: CN201811652448.6A
Authority: CN
Inventors: 杨永建
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-31
Filing date: 2018-12-31
Publication date: 2020-07-07

Abstract

Seat extension board belongs to the field of furniture, including extension bedplate (4), preceding support (5), the front end that extends bedplate (4) is articulated or fixed connection with the upper end of preceding support (5), and the rear end that extends bedplate (4) is located on the cushion of existing seat (1) to act on existing seat (1) through the soft or hard component, in order to prevent to extend the forward slip of bedplate. The invention provides a seat extension plate which is arranged on an existing seat (1) and can realize backward inclination with a larger body inclination, so that workers can have a comfortable lunch break.

Description

Seat extension board

Technical Field

The invention belongs to the field of furniture, and particularly relates to a seat extension plate.

Background

Related background art: in most cases, office workers have lower seat backs and seat boards of the seats are only long enough to maintain sitting postures basically, when lying on the chairs by leaning on, buttocks fall on the front edges of the seat boards of the seats and slide down easily, so that the office workers often have to lie on a table to keep arms on noon rest by headrests, and thus, arm numbness is easily caused by unsmooth blood.

Disclosure of Invention

The invention aims to provide a seat extension plate which can be lapped on an existing seat and can realize the backward inclination of a body with a larger inclination, so that workers can have a comfortable lunch break. Specifically, the seat extension plate is composed of a front support, an extension seat plate and an extension seat plate anti-skidding structure, wherein the rear end of the extension seat plate is overlapped on a cushion of an existing seat, and the front end of the extension seat plate is supported on the ground through the front support.

Drawings

Fig. 1 is a perspective view of a conventional seat with an attached backrest and a seat extension plate.

Fig. 2 is a perspective view of fig. 1 from the rear side with the existing seat removed and only the seat extension plate.

Fig. 3 is a perspective view of an existing seat and seat extension plate without an additional backrest but with an extension seat plate hanger.

Fig. 4 is a perspective view of an existing seat and seat extension plate without an additional backrest and without an extension seat plate hanger, but with a stop pin.

Fig. 5 is a perspective view from the side of fig. 4 with the seat removed and only the seat extension panel.

Fig. 6 is an enlarged view of a portion I of fig. 5.

Detailed Description

One, a seat extension plate with an additional backrest 3. As shown in fig. 1, the seat extension plate is composed of a front support 5, an extension seat plate 4 and an additional backrest 3, wherein the upper end of the front support 5 is hinged or fixedly connected with the front end of the extension seat plate 4, and the lower end of the additional backrest 3 is hinged with the rear end of the extension seat plate 4.

As shown in fig. 2, a sub-mode of this mode is that an additional backrest hook 7 is installed behind the upper portion of the additional backrest 3, and the additional backrest hook 7 is adjustable in the height direction to accommodate seat backings 2 of different heights.

When not in use, the seat extension board can be folded.

When the folding chair is used, the folding chair is folded and unfolded, the additional backrest hook 7 (if any) is hung at the upper end of the backrest 2 of the existing chair 1, the rear end of the extension seat plate 4 is located on a seat cushion of the chair, the front end of the extension seat plate is supported on the ground through the front support 5, and when the extension seat plate 4 is hinged to the front support 5, the folding support rod 6 is straightened after the seat extension plate is unfolded, so that the front support 5 and the extension seat plate 4 form a fixed angle.

The second mode, which is a simplified version of the first mode, as shown in fig. 3, differs from the first mode in that the extension seat plate 4 is hooked at the lower portion of the seat back 2 by the extension seat plate hook 12 without the additional back 3, so as to prevent the extension seat plate 4 from sliding forward when the back of the person leans against the seat back 2 after the person sits on the seat.

The left side and the right side of the extension seat plate 4 are respectively provided with an extension seat plate hook 12; the extension seat plate hook 12 and the hinged end of the extension seat plate 4 extend into the hinged seat pipe 11 and can stretch along the hinged seat pipe 11 in the left-right direction, so that the relative width of the extension seat plate hook 12 on the left side and the right side can be adjusted, and the seat extension plate can be conveniently taken from the existing seat 1 and adapted to the existing seat 1 with different widths.

One sub-mode of this mode is to replace the extension seat board hook 12 with a rope, i.e., to tie the rope to the lower portion of the seat back to prevent the extension seat board 4 from sliding forward.

A further simplified plate of the third mode, mode two, as shown in fig. 4, which replaces the extended seat pan hanger 12 with a stop pin 14, is applicable to the case where the existing seat 1 has the armrest stay 13.

The stop pin 14 can also be extended and retracted along the axial direction thereof, so as to facilitate the taking and placing of the seat extension plate from the existing seat 1 and adapt to the existing seat 1 with different widths.

To accommodate the different positions of the armrest support post 13, as shown in fig. 5 and 6. The rear portions of both sides of the extension seat plate 4 have a plurality of stopper pin fixing holes 15.

One sub-mode of this mode is to replace the stopper pin 14 with a rope, i.e., to tie the rope to the handle stay 13 to prevent the extension seat board 4 from sliding forward.

In order to accommodate different heights of the seat cushion of the existing seat 1 in the case where the extension seat plate 4 is hinged to the front support 5, a plurality of folding stay fixing holes 16 are formed in the front portions of both sides of the extension seat plate 4.

The extension seat plate 4 may be a whole plate structure or a structure of a frame and a small cushion.

Claims

1. The seat extension plate is characterized by comprising an extension seat plate (4) and a front support (5), wherein the front end of the extension seat plate (4) is hinged or fixedly connected with the upper end of the front support (5), the rear end of the extension seat plate (4) is located on the existing seat (1), and acts on the existing seat (1) through a soft and hard component so as to prevent the extension seat plate from sliding forwards.

2. Seat extension board according to claim 1, characterized in that the soft or hard component is an additional backrest (3), which additional backrest (3) rests on the seat backrest (2) of an existing seat (1).

3. The seat extension board of claim 1, wherein the soft and hard components are extension seat board hooks (12).

4. The seat extension panel of claim 1, wherein the soft and hard components are stop pins (14).

5. The seat extension panel of claim 1, wherein the soft or hard member is a cord.