Standing posture maintenance device

Abstract

This device provides a standing posture maintenance device that reduces fatigue in a standing position with a simple and minimal configuration, and can be optimally used according to the individual user's preferences and work content. [Solution] The standing posture maintenance device 101 comprises a substantially rectangular base plate 102, a first frame 103 extending upward from either the left or right side edge of the base plate 102, inclined forward with respect to the vertical, a second frame 104 arranged parallel to the first frame 103, a connecting frame 105 spanning the upper ends of the first and second frames 103 and 104, a third frame 106 extending upward from the end of the connecting frame 105, inclined backward with respect to the base plate 102, a first support portion 107 extending substantially horizontally from the upper end of the third frame 106 toward the inside of the base plate 102, and a second support portion 108 attached to the connecting frame 105.

Description

TECHNICAL FIELD

[0001] The present invention relates to a standing posture maintaining device for reducing the burden of a standing posture and maintaining the posture for a long period of time.

BACKGROUND ART

[0002] A chair for standing work that can be easily assembled and disassembled is known (see, for example, Patent Document 1). This chair is an auxiliary chair used by workers who work while standing on industrial production lines, employees who work while standing at sales floors, consumers who eat while standing, or other personnel who work while standing at fixed positions. In Patent Document 1, the cushion is located on the rear end side of the pedal (the rear side of the human body when standing on the pedal), so the cushion is originally intended for resting the buttocks and waist. However, when maintaining a standing posture without fully leaning the buttocks or waist, there is a demand for reducing fatigue or reducing the burden of the standing posture. In addition, downsizing accompanying simplification of the structure for realizing work in a narrow space is also required. Furthermore, it is also required to be provided with an optimal adjustment mechanism according to the individual user's preference and work content.

PRIOR ART DOCUMENTS

PATENT DOCUMENTS

[0003]

PATENT DOCUMENT 1

SUMMARY OF THE INVENTION

PROBLEMS TO BE SOLVED BY THE INVENTION

[0004] The present invention has been made in consideration of the above-described prior art, and an object thereof is to provide a standing posture maintaining device that can reduce fatigue in a standing posture with a simple and minimal configuration, and can be optimally used according to the individual user's preference and work content.

MEANS FOR SOLVING THE PROBLEMS

[0005] To achieve the above objective, the present invention provides a standing posture maintenance device comprising: a substantially rectangular base plate to be placed on a floor surface; a first frame extending upward from either the left or right side edge of the base plate, inclined forward with respect to the vertical; a second frame arranged parallel to the first frame and extending from a substantially central portion of the base plate in the left-right direction; a connecting frame spanning the upper ends of the first and second frames; a third frame extending upward from the end of the connecting frame on the first frame side, inclined backward with respect to the base plate; a first support portion extending substantially horizontally from the upper end of the third frame toward the inside of the base plate; and a second support portion attached to the connecting frame.

[0006] Preferably, the first and second frames are extendable and retractable in the vertical direction, and the connecting frame is rotatable in the axial direction.

[0007] Furthermore, the present invention provides a standing posture maintenance device characterized by comprising a substantially rectangular base plate to be placed on the floor surface, frames extending vertically upward from both left and right edges of the base plate, arms attached to the frames and further extending vertically upward along the axial direction of the frames, and a support portion spanning between the arms at the upper end of the arms.

[0008] Preferably, the frame and the arm are extendable and retractable in the vertical direction, and the arm is formed to be narrower than the frame in the front-rear and left-right directions.

[0009] Furthermore, the present invention provides a standing posture maintenance device characterized by comprising a substantially rectangular base plate to be placed on the floor surface, frames extending from both the left and right side edges of the base plate and from the front side edge inclined toward the rear of the base plate, and a support portion spanning between the frames at the upper end of the frames.

[0010] Preferably, the frame is extendable and retractable in the vertical direction. [Effects of the Invention]

[0011] According to the present invention, it is possible to reduce fatigue in a standing posture with a simple and minimal configuration, and to provide a standing posture maintenance device that can be optimally used according to the preferences and work content of individual users. [Brief explanation of the drawing]

[0012] [Figure 1] This is a schematic perspective view of the standing posture maintenance device according to the present invention. [Figure 2] This is a schematic right side view of the standing posture maintenance device according to the present invention. [Figure 3] This is a schematic front view of the standing posture maintenance device according to the present invention. [Figure 4] This is a schematic plan view of the standing posture maintenance device according to the present invention. [Figure 5] This is a schematic diagram showing the usage state of the standing posture maintenance device according to the present invention. [Figure 6] This is a schematic perspective view of another standing posture maintenance device according to the present invention. [Figure 7] This is a schematic right side view of another standing posture maintenance device according to the present invention. [Figure 8] This is a schematic front view of another standing posture maintenance device according to the present invention. [Figure 9] This is a schematic plan view of another standing posture maintenance device according to the present invention. [Figure 10] This is a schematic diagram showing the usage state of another standing posture maintenance device according to the present invention. [Figure 11] This is a schematic diagram showing the usage state of another standing posture maintenance device according to the present invention. [Figure 12] This is a schematic diagram showing the usage state of another standing posture maintenance device according to the present invention. [Figure 13] This is a schematic diagram showing the usage state of another standing posture maintenance device according to the present invention. [Figure 14]FIG. 1 is a schematic perspective view of still another standing posture maintenance device according to the present invention. [Figure 15] FIG. 3 is a schematic right side view of still another standing posture maintenance device according to the present invention. [Figure 16] FIG. 6 is a schematic front view of still another standing posture maintenance device according to the present invention. [Figure 17] FIG. 9 is a schematic plan view of still another standing posture maintenance device according to the present invention. [Figure 18] FIG. 12 is a schematic diagram showing a usage state of still another standing posture maintenance device according to the present invention. [Figure 19] FIG. 15 is a schematic diagram showing a usage state of still another standing posture maintenance device according to the present invention. [Mode for Carrying Out the Invention]

[0013] As shown in FIGS. 1 to 4, a standing posture maintenance device 101 according to the present invention includes a substantially rectangular base plate 102 made of metal, for example, to be placed on a floor surface. A first frame 103 made of metal, for example, is erected from either the left or right side edge (the right side edge in the illustrated example) of the base plate 102. The first frame 103 extends upward while being inclined forward (toward the front side) with respect to the vertical direction of the base plate 102. On the other hand, a second frame 104 made of metal, for example, is erected from a substantially central portion in the left-right direction of the base plate 102. The second frame 104 is arranged to be parallel to the first frame 103. A connection frame 105 made of metal, for example, is bridged between the upper end portions of the first frame 103 and the second frame 104. A third frame 106 made of metal, for example, extends upward from one end portion (the end portion on the first frame 103 side) of the connection frame 105. The third frame 106 is inclined toward the rear direction (back side) of the base plate 102.

[0014] A first support portion 107 extends substantially horizontally from the upper end of the third frame 106 toward the inside of the base plate 102 and is connected. This first support portion 107 is formed of, for example, a metal pipe material that is continuous with the third frame and a urethane cushion wrapped around it. A second support portion 108 is attached to the connecting frame 105 described above. The second support portion 108 is located approximately in the center of the connecting frame 105. The second support portion 108 is formed of a support portion 108a that covers the periphery of the connecting frame 105 and a cushion 108b attached to one side of the support portion 108a.

[0015] Here, the first frame 103 and the second frame 104 are expandable and contractible in the vertical direction (axial direction). The first and second frames 103 and 104 are formed from a long, plate-shaped shaft member 109 fixed to the base plate 102, and an enclosure member 110 that surrounds and covers the shaft member 109 along its length. In the example shown in the figure, the enclosure member 110 is further formed from a C-shaped guide member 110a and a long, plate-shaped cover member 110b that covers the opening end face of the guide member 110a. In the example shown in the figure, a through hole is formed at the upper end of the cover member 110b, through which the connecting frame 105 is inserted and fixed. As the enclosure member 110 slides along the shaft member 109, the first and second frames 103 and 104 become expandable and contractible in the vertical direction. Therefore, the enclosure member 110 and the shaft member 109 are engaged with each other internally, and by changing the engagement position, for example, by operating the button 110c located on the front of the guide member 110a, their positions are fixed at that engagement position. As a result, the first and second frames 103 and 104 can be extended and retracted in stages in the vertical direction.

[0016] Furthermore, the connecting frame 105 is rotatable in its axial direction. A cover material 111 extends from the upper end of the first frame 103 toward the connecting frame 105, and the connecting frame 105 is inserted through this cover material 111. The cover material 111 has holes, and the connecting frame 105 also has multiple holes in its circumferential direction, through which set pins 112 are inserted. By removing the set pins 112 and rotating the connecting frame 105, aligning the positions of the other holes in the connecting frame 105 with the positions of the holes in the cover material 111, and then inserting the set pins 112 again, the connecting frame 105 becomes rotatable in its axial direction. As a result, the second support part 108 fixed to the connecting frame 105 also rotates together with the connecting frame 105.

[0017] Furthermore, the third frame 106 is expandable and contractible in its axial direction. The third frame 106 has a double-cylinder structure, with multiple holes provided in the inner cylinder along the axial direction and holes provided in the outer cylinder. Set pins 113 are inserted through these holes. By removing the set pins 113 and sliding the outer cylinder relative to the inner cylinder, the position of the holes in the outer cylinder is aligned with the position of other holes in the inner cylinder, and the set pins 113 are inserted, the third frame 106 becomes expandable and contractible in the vertical direction (axial direction).

[0018] As shown in Figure 5, the standing posture maintenance device 101 with the structure described above is used by placing the first support part 107 against the thigh of the human body and the second support part 108 against the shin of the human body. This posture is not a completely sitting position, but a standing position, or so-called upright posture. In a sitting position, all of the body weight is applied downwards to the buttocks, but with the standing posture maintenance device 101 according to the present invention, the thigh part is applied diagonally downwards and backwards to the human body, and the shin part is applied diagonally downwards and forwards to the human body. This provides appropriate support to the thighs and shins, distributes the weight load on the soles of the feet in a standing position, can assist in maintaining a standing posture for long periods of time, and can reduce fatigue. In other words, instead of supporting the human body only with the soles of the feet in a standing position, according to the present invention, multiple parts other than the soles of the feet are supported, so the posture can be maintained and the burden of standing can be reduced. In the case of a chair, the seat surface must be formed to the size of the base plate 102, and the legs of the human body will extend beyond this. However, with the standing posture maintenance device 101 according to the present invention, the human body fits within the space on the base plate 102, making it usable even in narrow spaces and work sites where it is difficult to install a chair. Furthermore, the aforementioned extendable and rotatable mechanism allows for adjustment according to the user's body type, posture, and work environment. Specifically, the height of the first support part 107 can be adjusted, the angle of the second support part 108 can be adjusted, and the heights of the first and second frames 103 and 104 can also be adjusted. This allows the first support part 107 and the second support part 108 to be moved to match the position of each user's thighs and shins, providing optimal support according to individual preferences and work content. Moreover, these adjustment mechanisms can be easily operated intuitively, allowing for flexible adaptation to various usage scenarios. A protective sheet 114 is attached to the surface of the base plate 102 located between the first frame 103 and the second frame 104. This area is where the soles of the feet rest and is subject to significant wear and tear; therefore, protecting this area helps to extend the product's lifespan.

[0019] As shown in Figures 6 to 9, another standing posture maintenance device 201 according to the present invention comprises, for example, a roughly rectangular base plate 202 made of metal to be placed on the floor. From the left and right edges of this base plate 202, for example, metal frames 203 extend vertically upward from each side. For example, metal arms 204 are attached to these frames 203. The arms 204 extend further vertically upward along the axial direction of the frame 203. Specifically, the arms 204 are fixed to the inside of the frame 203 with bolts 206. A support section 205 is spanned across the upper ends of both arms 204. This support section 205 is formed, for example, of a metal pipe material arranged axially and a urethane cushion wrapped around it.

[0020] Here, the frame 203 is extendable and retractable in the vertical direction. The frame 203 has a double-cylinder structure consisting of an inner cylinder 203a and an outer cylinder 203b, and it is extendable and retractable by the sliding of these two parts toward each other. The relative positions of these parts are fixed by various known methods. The arm 204 is also extendable and retractable in the vertical direction. The arm 204 is formed of a long, plate-shaped shaft member 204a fixed to the outer cylinder 203b, and an enclosure member 204b that surrounds and covers the shaft member 204a along its length. The arm 204 is extendable and retractable by the sliding of these shaft member 204a and enclosure member 204b toward each other. The relative positions of the shaft member 204a and enclosure member 204b are, for example, controlled by a button 204c provided on the arm 204. When button 204c is pressed, the engagement between shaft member 204a and enclosure member 204b is released, allowing them to slide against each other. When button 204c is released, shaft member 204a and enclosure member 204b are re-engaged, fixing their positions relative to each other.

[0021] Here, the arm 204 is formed to be narrower than the frame 203 in the front-rear, left-right, and right directions. As a result, the frame 203, which is located on the lower side, becomes larger, providing stability when the arm 204 and frame 203 are extended. Furthermore, if the frame 203 and arm 204 are formed from the same material, the frame 203, which is located on the lower side, becomes heavier, lowering the center of gravity and further increasing stability.

[0022] The standing posture maintenance device 201 with the structure described above can be used by placing the support part 205 against the front of the body's thighs, as shown in Figure 10, or by placing the support part 205 against the body's buttocks, as shown in Figure 11. Alternatively, with the standing posture maintenance device 201 facing away from the front, the support part 205 can be placed against the body's rear thighs, as shown in Figure 12, or against the body's waist, as shown in Figure 13. This posture is not a complete sitting position, but rather a standing posture, or so-called upright posture. In a sitting position, all of the body's weight is applied downwards to the buttocks, but with the standing posture maintenance device 201 according to the present invention, the load is applied to the front of the thighs, buttocks, rear of the thighs, and waist. This provides appropriate support to each part, distributes the weight load on the soles of the feet in a standing posture, can assist in maintaining an upright posture for extended periods, and can reduce fatigue. In other words, instead of supporting the human body solely with the soles of the feet in a standing position, the present invention supports other parts of the body besides the soles of the feet, thus maintaining posture and reducing the burden of standing. In the case of a chair, the seat surface must be formed to the size of the base plate 202, and the legs of the human body will extend beyond this area. However, with the standing posture maintenance device 201 according to the present invention, the human body fits within the space on the base plate 202, making it usable even in narrow spaces and work sites where it is difficult to install a chair. Furthermore, the aforementioned telescopic mechanism allows for adjustment according to the user's body type, posture, and work environment. This allows the support section 205 to be moved to match the position of each part of the individual user, providing optimal support according to individual preferences and work content. Moreover, these adjustment mechanisms can be easily operated intuitively, allowing for flexible adaptation to various usage scenarios. A protective sheet 207 is attached to the surface of the base plate 202. This area is where the soles of the human body rest and is subject to heavy wear, so protecting this area extends the product's lifespan.

[0023] As shown in Figures 14 to 16, yet another standing posture maintenance device 301 according to the present invention comprises a substantially rectangular base plate 302, for example, made of metal, which is placed on the floor. Frames 303 are erected from both the left and right side edges of the base plate 302 and from the front side edge of the base plate 302. Each of these frames 303 extends inclined toward the rear of the base plate 302. Support portions 304 are spanned across the upper ends of both frames 303. These support portions 304 are formed, for example, from a metal pipe material arranged axially and a urethane cushion wrapped around it.

[0024] Here, the frame 303 is extendable and retractable in the vertical direction. The frame 303 is formed of a long, plate-shaped shaft member 303a fixed to the base plate 302 with bolts 305, and an enclosure member 303b that surrounds and covers the shaft member 303a. The frame 303 becomes extendable and retractable by the sliding motion of the shaft member 303a and the enclosure member 303b toward each other. The relative positions of the shaft member 303a and the enclosure member 303b are controlled, for example, by a button 303c provided on the frame 303. When the button 303c is pressed, the engagement between the shaft member 303a and the enclosure member 303b is released, allowing them to slide toward each other. When the button 303c is released, the shaft member 303a and the enclosure member 303b are re-engaged, and their relative positions are fixed.

[0025] As shown in Figures 18 and 19, the standing posture maintenance device 301 with the structure described above is used by placing the support part 304 against the lower part of the knee (knee) of the human body. This posture is not a completely sitting position, but a standing position, or so-called upright posture. In a sitting position, all of the body weight is applied downwards to the buttocks, but with the standing posture maintenance device 301 according to the present invention, the load is applied to the knees in a diagonal forward downward or forward direction. This provides appropriate support to each part, distributes the weight load on the soles of the feet in a standing position, can assist in maintaining a standing posture for long periods of time, and can reduce fatigue. In other words, instead of supporting the human body only with the soles of the feet in a standing position, according to the present invention, other parts of the body are supported in addition to the soles of the feet, so the posture can be maintained and the burden of standing can be reduced. In the case of a chair, the seat surface must be formed with the size of the base plate 302, and the legs of the human body will extend beyond this, but with the standing posture maintenance device 301 according to the present invention, the human body fits within the space on the base plate 302, so it can be used even in narrow spaces or work sites where it is difficult to install a chair. Furthermore, the aforementioned telescopic mechanism allows for adjustment according to the user's body type, posture, and work environment. This allows the support section 304 to be moved to match the position of each part of the user's body, providing optimal support according to individual preferences and work content. In addition, these adjustment mechanisms can be easily operated intuitively, allowing for flexible adaptation to various usage scenarios. A protective sheet 305 is attached to the surface of the base plate 302. This area is where the soles of the feet rest and is subject to heavy wear, so protecting this area extends the product's lifespan. [Explanation of Symbols]

[0026] 101: Standing posture maintenance device according to the present invention, 102: Base plate, 103: First frame, 104: Second frame, 105: Connecting frame, 106: Third frame, 107: First support part, 108: Second support part, 108a: Support part, 108b: Cushion, 109: Axle material, 110: Enclosure material, 110a: Guide member, 110b: Cover member, 110c: Button, 111: Cover material, 112: Set pin, 113: Set pin, 114: Protective sheet, 20 1: Another standing posture maintenance device according to the present invention, 202: base plate, 203: frame, 203a: inner cylinder, 203b: outer cylinder, 204: arm, 204a: shaft material, 204b: enclosure material, 204c: button, 205: support part, 206: bolt, 207: protective sheet, 301: yet another standing posture maintenance device according to the present invention, 302: base plate, 303: frame, 303a: shaft material, 303b: enclosure material, 303c: button, 304: support part, 305: protective sheet

Claims

1. A roughly rectangular base plate to be placed on the floor surface, A first frame extending upward from either the left or right side edge of the base plate, inclined forward with respect to the vertical, A second frame is arranged parallel to the first frame and extends from approximately the center portion of the base plate in the left-right direction, A connecting frame is spanned across the upper ends of the first and second frames, A third frame extends upward from the end of the connecting frame on the first frame side, inclined toward the rear of the base plate, A first support portion extending substantially horizontally from the upper end of the third frame toward the inside of the base plate, A standing posture maintenance device characterized by comprising a second support portion attached to the aforementioned connecting frame.

2. The first and second frames are extendable and retractable in the vertical direction. The standing posture maintenance device according to claim 1, characterized in that the connecting frame is rotatable in the axial direction.

3. A roughly rectangular base plate to be placed on the floor surface, Frames extending vertically upward from both the left and right edges of the base plate, An arm attached to the frame and extending further vertically upward along the axial direction of the frame, A standing posture maintenance device characterized by comprising a support portion that spans between the arms at the upper end of the arms.

4. The frame and the arm are extendable and retractable in the vertical direction. The standing posture maintenance device according to claim 3, characterized in that the arm is formed to be narrower in the front-rear and left-right directions than the frame.

5. A roughly rectangular base plate to be placed on the floor surface, Frames extending from the left and right side edges of the base plate, and from the front side edge, inclined toward the rear of the base plate, A standing posture maintenance device characterized by comprising a support portion that spans between the frames at the upper end of the frame.

6. The standing posture maintenance device according to claim 5, characterized in that the frame is extendable in the vertical direction.

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