Standing-up / seating assist device and standing-up / seating assist device chair

Abstract

To provide a standing-up assist chair using no power for raising a seat surface, having a simple structure, manufactured at a low cost, and easily used in a general household.SOLUTION: A standing-up / seating assist device used with it disposed on a seat surface of a seating tool, comprises a chair fixing part to be fixed to the seat surface; an assisting part disposed in front of the seat surface and including the chair fixing part and a first rotating part; an operating part to be disposed on the assisting part; and a support part disposed behind the seat surface and including the assisting part and a second rotating part, where a person using the seating tool is seated on the support part.SELECTED DRAWING: Figure 11

Description

Technical Field

[0001] The present invention relates to a power-free standing assistance device and a standing assistance device chair having a structure in which an elbow rest and a seat plate perform a rotational motion based on the lever principle so that a person with weak legs and waist, such as a disabled person or an elderly person, can sit and stand without burdening the waist and knees.

Background Art

[0002] Conventional standing assistance chairs raise the seat plate by power such as a motor, a spring, or pneumatic pressure. Structurally, they are complex and heavy, making them large-scale and expensive for home use, or there are some that cannot be manufactured due to their structure. Therefore, purchases in public places and ordinary households have been avoided and they have not become widespread. (For example, see Patent Document 1.)

[0003] In terms of appearance, since it is different from a normal chair at first glance, users feel ashamed to use a standing assistance chair. In particular, for people with slightly weak legs, there is a strong resistance to using a large-scale standing assistance chair, and currently, they endure and use a normal chair instead. As a result, the burden on the legs and waist often causes deterioration.

[0004] Also, while it is said that walking and doing some exercise can slow down the progress of decline and have a mental effect, using power allows people to stand up without training their weak legs, which further weakens the leg muscles.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] Conventional standing-assist chairs raise the seat plate by power such as motors, springs, or pneumatic pressure. Structurally complex and heavy, they are too large and expensive for home use, and some cannot be manufactured due to their structure. Therefore, purchases in public places and ordinary households have been discouraged and they have not become widespread.

[0007] Also, when using power during sitting and standing, it may cause muscle atrophy. Therefore, for the elderly or those with weak legs and lower backs who have weak muscles, their muscles will further atrophy.

Means for Solving the Problem

[0008] The first invention is a standing-sitting assist device that is disposed on the seat surface of a seating implement and used. It has a chair fixing portion fixed to the seat surface, an auxiliary portion disposed with a first rotating portion in front of the seat surface with respect to the chair fixing portion, an operation portion disposed on the auxiliary portion, and a support portion disposed with a second rotating portion behind the seat surface with respect to the auxiliary portion. The person using the seating implement sits on the support portion. It is a standing-sitting assist device characterized by this.

[0009] In the second invention, the first rotating portion rotates the auxiliary portion upward with respect to the chair fixing portion, and the second rotating portion rotates the support portion upward with respect to the auxiliary portion. The support portion slides and moves forward to the front side of the seat surface while rotating. It is the standing-sitting assist device according to claim 1, characterized by this.

[0010] The third invention is the standing-sitting assist device according to claim 2, characterized in that the operation portion has an armrest portion for the person.

[0011] The fourth invention is the standing and sitting assist device according to claim 3, characterized in that the operation part is fixed to the upper surface of the auxiliary part, the operation part has a protruding part that protrudes forward of the seat surface with respect to the auxiliary part, and the protruding part is used as a restriction for restricting the rotation of the auxiliary part by contacting the seat surface.

[0012] The fifth invention is a standing and sitting assist device chair, characterized by comprising a seat part on which a user sits, a chair fixing part fixed to the upper surface of the seat part, an auxiliary part disposed with a first rotating part at the front of the seat surface with respect to the chair fixing part, an operation part disposed on the auxiliary part, and a support part disposed with a second rotating part at the rear of the seat surface with respect to the auxiliary part.

[0013] The sixth invention is that the first rotating part rotates the auxiliary part upward with respect to the chair fixing part, and the second rotating part rotates the support part upward with respect to the auxiliary part. The standing and sitting assist device chair according to claim 5, characterized in that the support part slides forward while rotating along the front side of the seat surface.

[0014] The seventh invention is the standing and sitting assist device chair according to claim 6, characterized in that the operation part has an armrest part for the person.

[0015] The eighth invention is the standing and sitting assist device chair according to claim 7, characterized in that the operation part is fixed to the upper surface of the auxiliary part, the operation part has a protruding part that protrudes forward of the seat surface with respect to the auxiliary part, and the protruding part is used as a restriction for restricting the rotation of the auxiliary part by contacting the seat surface.

Advantages of the Invention

[0016] Therefore, the present invention provides a simple structure in which a fulcrum is provided at the bottom of the seat plate that rises obliquely upward for the elbow rest that rotates based on the lever principle. When standing up, the body weight moves forward, and the rear part of the seat plate rises obliquely. As a result, the weight is also light, and it can be easily stood up only by the movement of one's own body weight without using power. Therefore, the price can be suppressed and the weight can be reduced, so it is expected to be popularized in public places and ordinary households.

[0017] In addition, since no power is used, appropriate arm strength and leg strength are required when sitting and standing up. It prevents muscle atrophy while using the chair and brings about a rehabilitation effect. Therefore, it can be utilized as a rehabilitation chair not only for the elderly and disabled but also for other people.

Brief Explanation of Drawings

[0018]

Figure 1

Figure 2

Figure 3

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Figure 5

Figure 6

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Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Embodiments for Carrying out the Invention

[0019] Hereinafter, the operation unit 20 and the seat tool 10 according to an embodiment of the present invention will be described in detail with reference to the drawings. In the description of the following embodiments, the same members are basically assigned the same reference numerals, and repeated descriptions are omitted.

[0020] FIG. 1 is a perspective view illustrating the disassembly of the operation unit 20 and the seat tool 10 of the present embodiment and the names of the components. FIG. 2 is a perspective view illustrating the sitting state. FIG. 3 is a perspective view illustrating the standing state. FIG. 4 is a perspective view illustrating the sitting state and the standing state of the operation unit 20. FIG. 5 is a perspective view illustrating the state in which the operation unit 20 and the seat tool 10 are separated. FIG. 6 is a perspective view illustrating a variation of the armrest portion 23 of the operation unit 20. FIG. 7 is a sectional view illustrating the inclined state of the standing-up and sitting-down assisting device 20 and the seat tool 10. FIG. 8 is a cross-section illustrating the sitting state of the operation unit 20 and the seat tool 10. FIGS. 9, 10, 11, and 12 are cross-sectional views illustrating the operations from the sitting state to the standing state.

[0021] As shown in FIG. 2, the standing-up and sitting-down assisting device 20 is installed on the seat surface of the seat tool 10 and used, and includes a chair fixing portion 24 fixed to the seat surface of the seat tool 10, an assisting portion 22 having a first rotating portion 25 disposed in front of the seat surface of the seat tool 10 and the chair fixing portion 24, an operation unit 20 disposed on the assisting portion 22, and a support portion 27 having a second rotating portion 26 disposed behind the seat surface of the seat tool 10 and the assisting portion 22. A person using the seat tool 10 sits on the support portion 27.

[0022] The first rotating part 25 of the operation part 20 rotates the auxiliary part 22 upward with respect to the chair fixing part 24, the second rotating part 26 rotates the support part 27 upward with respect to the auxiliary part 22, and the support part 27 slides forward to the front side of the seat surface of the seat tool 10 while rotating.

[0023] The operation part 20 is fixed to the upper surface of the auxiliary part 22, and the operation part 20 restricts the rotation of the auxiliary part 22 by contacting the seat surface of the seat tool 10 with respect to the auxiliary part 22.

[0024] It has a seat part on which a user sits, a chair fixing part 24 fixed to the upper surface of the seat part, an auxiliary part 22 disposed in front of the seat part and having a first rotating part 25 with the chair fixing part 24, an operation part 20 disposed on the auxiliary part 22, and a support part 27 disposed behind the seat surface and having a second rotating part with the operation part 20.

[0025] The first rotating part 25 rotates the auxiliary part 22 upward with respect to the chair fixing part 24, the second rotating part 26 rotates the support part 27 upward with respect to the auxiliary part 22, and the support part 27 slides forward to the front side of the seat part while rotating.

[0026] Figs. 9, 10, 11, and 12 are diagrams showing the actions of a person using the present invention when sitting and standing up. Fig. 9 is a diagram showing a user sitting and placing their arms on the armrest part 23. Fig. 10 is a diagram showing that when the user places their hand near the tip of the armrest part 23 and moves their center of gravity forward while standing up, the first rotating part 25 rotates the auxiliary part 22 upward with respect to the chair fixing part 24, the second rotating part 26 rotates the support part 27 upward with respect to the auxiliary part 22, and the support part 27 slides forward to the front side of the seat part while rotating, indicating that the user can lift their waist without applying force. Also, Figs. 11 and 12 are diagrams showing the actions of leaving the waist from the standing-up and sitting-down assisting device 20 and standing up.

[0027] Conversely, performing the opposite of what is described in the above "0026" results in the movement from standing up to sitting down. As the user places their hand near the tip of the armrest 23 and lowers their waist, as the support portion 27 slides rearward along the seat while rotating, the first rotating portion 25 rotates the auxiliary portion 22 downward with respect to the chair fixing portion 24, and the second rotating portion 26 rotates the support portion 27 downward with respect to the auxiliary portion 22, which is a diagram showing the user sitting down slowly.

Claims

1. A standing and sitting assistance device that is disposed on and used on the seat surface of a seating implement, comprising: a chair fixing portion fixed to the seat surface; an auxiliary portion disposed in front of the seat surface and having a first rotating portion and the chair fixing portion; an operation portion disposed on the auxiliary portion; a support portion disposed behind the seat surface and having a second rotating portion and the auxiliary portion, and a person using the seating implement sits on the support portion. A standing and sitting assistance device characterized by this.

2. The first rotating portion rotates the auxiliary portion upward with respect to the chair fixing portion, The second rotating portion rotates the support portion upward with respect to the auxiliary portion, and The support portion slides forward on the seat surface while rotating. The standing and sitting assistance device according to Claim 1, characterized by this.

3. The operation portion has an armrest portion for the person. The standing and sitting assistance device according to Claim 2, characterized by this.

4. The operation portion is fixed to the upper surface of the auxiliary portion, The operation portion has a protruding portion that protrudes forward of the seat surface with respect to the auxiliary portion, and The protruding portion is used as a restricting portion that restricts the rotation of the auxiliary portion by contacting the seat surface. The standing and sitting assistance device according to Claim 3, characterized by this.

5. a seat portion on which a person sits, a chair fixing portion fixed to the upper surface of the seat portion, an auxiliary portion disposed in front of the seat surface and having a first rotating portion and the chair fixing portion, an operation portion disposed on the auxiliary portion, and a support portion disposed behind the seat surface and having a second rotating portion and the auxiliary portion. A standing and sitting assistance device chair characterized by having these.

6. The first rotating portion rotates the auxiliary portion upward with respect to the chair fixing portion, The second rotating portion rotates the support portion upward with respect to the auxiliary portion, and The support portion slides forward on the seat surface while rotating. The standing and sitting assistance device chair according to Claim 5, characterized by this.

7. The operation portion has an armrest portion for the person. The standing and sitting assistance device chair according to Claim 6, characterized by this.

8. The operation portion is fixed to the upper surface of the auxiliary portion, The operation portion has a protruding portion that protrudes forward of the seat surface with respect to the auxiliary portion, and The protruding portion is used as a restricting portion that restricts the rotation of the auxiliary portion by contacting the seat surface. The standing and sitting assistance device chair according to Claim 7, characterized by this.

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