Paper tray
The paper tray design addresses assembly and hygiene issues by using fold lines and locking mechanisms for easy assembly and unfolding, enhancing user convenience and hygiene.
JP7893078B2Active Publication Date: 2026-07-22TOPPAN HOLDINGS INC
View PDF 3 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- TOPPAN HOLDINGS INC
- Filing Date
- 2022-07-19
- Publication Date
- 2026-07-22
AI Technical Summary
Technical Problem
Existing paper trays require time-consuming assembly and unfolding processes, and pose hygiene risks due to adhesion operations and potential paper dust scattering during cutting.
Method used
A paper tray design featuring a rectangular bottom wall, side walls connected by a connecting piece with fold lines and locking mechanisms, allowing for assembly without adhesives and easy unfolding into a dish shape, with semicircular projections to prevent paper dust scattering.
Benefits of technology
The design minimizes assembly and unfolding effort, reduces hygiene concerns by eliminating the need for adhesives and cutting, and prevents paper dust dispersion.
✦ Generated by Eureka AI based on patent content.
Smart Images

Figure 0007893078000001 
Figure 0007893078000002 
Figure 0007893078000003
Abstract
To provide a paper tray that can be assembled and expanded without requiring time and effort and can suppress concern in terms of sanitation.SOLUTION: The paper tray comprises: a rectangular bottom wall; a first side wall linking to a side extending in a first direction in the bottom wall; a second side wall linking to a side extending in a second direction which is orthogonal to the first direction in the bottom wall; a connection piece connecting the first side wall and the second side wall which are made adjacent to each other; a first folding line, formed in the connection piece, at which the connection piece is bisected in a circumferential direction; a second folding line positioned at an intersection part between the connection piece and the first side wall; a third folding line positioned at an intersection part between the connection piece and the second side wall; a locking piece linking to an upper edge of an opening of the first side wall; and a notched part for locking positioned at a part intersecting with the first side wall, in the locking piece. The connection piece is attachably and detachably tucked into the notched part for locking and fixed, when folded at the first folding line to be folded back so that inner surface sides thereof oppose to each other and folded in parallel to the first side wall at the second folding line and the third folding line overlapping with each other.SELECTED DRAWING: Figure 3
Need to check novelty before this filing date? Find Prior Art