Concave backrest
A concave design on the chair backrest addresses the issue of bags and umbrellas slipping off by securely holding their straps, enhancing user convenience and operational efficiency.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-04-08
AI Technical Summary
Bags and umbrellas frequently slip off chair backrests in public spaces, causing inconvenience and hindering operations.
A concave portion is designed at the center of the chair backrest to prevent straps from slipping off.
The concave portion effectively secures bags and umbrellas by preventing them from slipping off.
Smart Images

Figure 0003255409000001_ABST
Abstract
Description
Technical Field
[0001] The present invention has the shape of a chair backrest that prevents a bag or an umbrella from slipping off even when they are hung on it.
Background Art
[0002] In restaurants, entertainment facilities, etc., bags or umbrellas may be hung on the backrests, but they are often seen to slip off. Also, in order to avoid this, some people place their luggage on the adjacent empty seats, which hinders the operation of the store or facility.
Summary of the Invention
Problems to be Solved by the Invention
[0003] It is to prevent bags, umbrellas, etc. hung on the chair backrest from slipping off.
Means for Solving the Problems
[0004] A concave portion is provided at the center of the upper part of the chair backrest.
Effects of the Invention
[0005] The concave portion of the chair backrest can prevent the straps of the bag or the umbrella from slipping off.
Brief Description of the Drawings
[0006] [Figure 1] This shows the location and overall image of the present invention. [Figure 2] Example when a backpack (2-1) is hung, Example when a shoulder bag (2-2) is hung, Example when a U-shaped handle umbrella (2-3) is hung
Claims
[Claim 1] The chair's backrest has a recess in the center of the top, making it less likely for items like backpack straps, shoulder bags, or U-shaped handles to fall off when hooked onto it.