Sofa
A cushion-integrated sofa with a locking mechanism offers a safer restraint solution for individuals in panic, resolving storage and injury risks associated with conventional batons.
Patent Information
- Application Number
- JP2024048766
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2044-03-07
AI Technical Summary
Conventional restraint devices like batons pose challenges in secure storage and safe use, especially in care facilities, and risk injury during restraint due to their rod-shaped ends.
A sofa with a cushion that incorporates a U-shaped grip and locking mechanism, allowing safe restraint of panicked individuals by minimizing physical contact.
Provides a safer means of restraint by reducing the risk of injury to both users and staff, while addressing storage and use concerns.
Smart Images

Figure 2025137303000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention is a sofa that can be used to restrain people with mobility impairments, for example, in nursing homes. [Background technology]
[0002] Traditional restraint devices include batons used to capture rioters, but when using them, there is a risk that the body or head of a person with mobility disabilities will hit the wall or ground hard, even if they are accustomed to using them. Also, storing the batons in a visible place can lead to people who are concerned about the storage location destroying the batons. For these reasons, it is difficult to use and store them in facilities or at home. [Prior art documents] [Patent documents] [Patent documents] Patent Publication No. 2001-183091 Summary of the Invention [Problem to be solved by the invention]
[0003] Although there are conventional baton for capturing rioters, it is difficult to secure storage space and use them in care facilities or at home. Also, when using a baton to restrain a panicked person, the rod-shaped end of the baton poses a risk of injury to facility staff or the panicked person, which is an issue. [Means for solving the problem]
[0004] The present invention provides a sofa that allows a person in a panic to be physically restrained on the sofa using a cushion. The inventor discovered that a sofa with the effect of a mob arresting stomp could be used to minimize physical contact and reduce the risk of injury, leading to the completion of the invention. Specifically, the sofa is comprised of a backrest, cushion, arms, and a frame with a seat at the top. The frame has a locking groove with a locking opening on the side and a mating groove on the seat. The cushion has a U-shaped grip at the bottom that fits into the mating groove, and is configured with a locking part with a handle at one end that is inserted so as to pass through the U-shaped grip, and the locking part is fitted into the locking groove. [Effects of the Invention]
[0005] Normally, when staff members try to restrain a panicked person, they do so with their bare hands, which often results in injuries.By using a cushion attached to the sofa for restraints, we can provide a sofa that takes into consideration the safety of both users and staff members. [Brief explanation of the drawings]
[0006] [Figure 1] Sofa exterior view [Figure 2] Sofa structure exploded view [Figure 3] Cross section of the cushion side [Figure 4] Cross section of the cushion bottom [Figure 5] Cushion bottom view [Figure 6] Frame bottom view [Figure 7] Examples of use of the present invention DETAILED DESCRIPTION OF THE INVENTION
[0007] The embodiments of the invention will be described with reference to the drawings.
[0008] The appearance of the sofa is shown in Figure 1. The sofa 1 consists of a backrest 2, a cushion 3, arms 4 and a frame 5.
[0009] Fig. 2 shows an exploded view of the sofa 1 with the cushion 3 removed. The cushion 3 has a U-shaped grip 31 at its bottom. The frame 5 has a fitting groove 51 on the seat surface 52 and a locking opening 53 on its side. The locking portion 6 has a handle 61 at its end.
[0010] 3 shows a cross-sectional side view of the cushion 3. The U-shaped gripping portion 31 has a plate 32 made of a soft poly material at a substantially central position within the cushion 3. Both ends of this plate 32 are bent outward.
[0011] 4 shows a cross-sectional view of the bottom surface of the cushion 3. The plate 32 has a threaded portion 33 to which the U-shaped grip portion 31 is threaded with a screw or a screw.
[0012] The bottom view of the cushion is shown in Figure 5. The end of the locking part 6 has a handle 61. The locking part 6 is inserted through the U-shaped grip part 31.
[0013] A bottom view of the frame is shown in Figure 6. The frame 5 has a fitting groove 51 into which the U-shaped gripping portion 31 fits, and a locking groove 54 into which the locking portion 6 is inserted through a locking opening 53.
[0014] Next, an example of how the present invention is used is shown in Figure 7. When using the cushion, the cushion user 7 takes out the locking portion 6 by holding the handle 61 of the locking portion 6 and pulling it toward themselves through the locking opening 53 formed on the side of the frame 5. This allows the cushion 3 to be moved freely. The cushion user 7 takes out the cushion 3 and grasps the U-shaped gripping portion 31. This cushion 3 can be used to restrict the movement of a panicked person 8 on the top surface of the sofa 1. In this way, the panicked person 8 is safely restrained. [Explanation of symbols]
[0015] 1 sofa 2 backrest 3 cushions 31 gripping part 32 plates 33 Threaded joint 4 Arm 5 frames 51Mating groove that fits the U-shaped grip 52 seats 53 Locking Port 54 Locking groove 6 Locking part body 61 handle 7 Cushion users 8. People in a panic
Claims
[Claim 1] A sofa comprising a frame with a backrest, cushions, arms and a seat at the top, wherein the frame has a locking groove with a locking opening on the side and a fitting groove on the seat, the cushion has a U-shaped gripping portion at the bottom that fits into the fitting groove, and has a locking portion with a handle at one end that is inserted so as to pass through the U-shaped gripping portion, the sofa being characterized in that the locking portion fits into the locking groove.
Citation Information
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