Human support device

Abstract

To provide a human support device which can distribute a load by a human body and select and incline an angle of an upper body and lower body stably backward.SOLUTION: A human support device 1A includes: a device support stand 2 with an operation member 21a and a bearing member 21b being attached to an upper part thereof, and provided with a telescopic part 21 that vertically expands and shrinks by an operation of the operation member 21a and a base part 22 provided on a floor surface F; a human body support stand 3 having a shaft member 31 rotationally attached by being inserted into the bearing member 21b of the telescopic part 21, a frame member 32 having at least a frame main part 321 fixed to the shaft member, and a cushion member 33 which can be in contact with the frame member 32 on a back side thereof and a human body H on a front side thereof; and a caster 4 attached to the frame member 32. An angle of the frame main part 321 with respect to the floor surface F changes by a rotation and movement of the caster 4 according to an expansion and shrinkage of the telescopic part 21.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a human body support device that supports a human body while working, studying, or the like. [Background technology]

[0002] Although the human skeletal structure is suited to standing and walking, we work, study, and so on by sitting in a chair with our backs bent. However, sitting for long periods of time places a great strain on the lower back, which can easily lead to illnesses such as lower back pain and herniated discs. On the other hand, when working or studying while standing, the weight of the human body places a heavy load on the soles of the feet, making it difficult to work for long periods of time. For this reason, various types of chairs and human body support devices have been proposed to reduce the heavy localized strain on the lower back or soles of the feet. A human body support device is a device that supports the human body while working, studying, and so on, and includes not only chairs for sitting but also devices that cannot be considered seated.

[0003] For example, Patent Document 1 proposes a human body support device (body support structure) in which the stand portion (reference numeral 16c in Figure 6) serves as a support pillar, and the contact portions where the upper body, lower body, and soles of the feet come into contact are all flat, allowing the upper body and lower body to be tilted backward at independently selectable angles. This human body support device distributes the weight of the human body to the lower body and soles of the feet by allowing the lower body to lean against the lower body contact portions, thereby eliminating adverse effects on the lower back. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-014264 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the human body support device of Patent Document 1 stabilizes at a specific angle when the stand and lower body contact part are in contact with the floor surface (see Figure 6 thereof), and it is not possible to change the angle of the lower body from that angle to a standing orientation, and even if an attempt is made to change the angle of the lower body from that angle to a lying orientation, the lower end of the lower body contact part rises from the floor surface, and the human body support device is supported by the stand part alone, which is not realistic from a mechanical standpoint.

[0006] The present invention has been made in consideration of the above circumstances, and its purpose is to provide a human body support device that can distribute the load of the human body among the upper body, lower body, and soles of the feet (or the upper body and lower body), and that can stably tilt the upper body and lower body backward at a selectable angle. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the human body support device described in claim 1 comprises an apparatus support base having an operating member and a bearing member attached at the top, an extension section that extends and retracts up and down by operating the operating member, and a base that is placed on the floor surface; a frame member having at least an axis member that is inserted into the bearing member of the extension section and rotatably attached thereto and a frame main section fixed thereto, and a cushion member that contacts the frame member on the back side and can contact at least the upper and lower body of the human body on the front side, and is formed to support the human body; and casters attached to the frame members, wherein the angle of the frame main section relative to the floor surface changes as the casters rotate and move in accordance with the extension and retraction of the extension section.

[0008] The human body support device described in claim 2 is the human body support device described in claim 1, wherein the frame member further has a frame foot support portion formed near the bottom of the frame main portion, and the caster is attached to the bottom of the frame main portion.

[0009] The human body support device of claim 3 is the human body support device of claim 1, wherein the frame member further comprises an upper frame lower body support portion rotatably attached to the main frame portion, a lower frame lower body support portion rotatably attached to the upper frame lower body support portion, a lower frame body support auxiliary portion rotatably attached to both the lower frame lower body support portion and the main frame portion, and a second operating member that can operate the angle between the main frame portion and the upper frame lower body support portion, and the casters are attached to the bottom of the main frame portion or the lower frame lower body support portion, and when the casters are attached to the lower frame lower body support portion, the casters rotate and move in response to operation of the second operating member, thereby changing the angle of the main frame portion with respect to the floor surface.

[0010] The human body support device of claim 4 is the human body support device of claim 1, wherein the frame member further comprises an upper frame lower body support portion rotatably attached to the main frame portion, a lower frame lower body support portion rotatably attached to the upper frame lower body support portion and having the casters attached thereto, a second operating member that can operate the angle between the main frame portion and the upper frame lower body support portion, and a third operating member that can operate the angle between the upper frame lower body support portion and the lower frame lower body support portion, and the casters rotate and move in response to operation of the second operating member or the third operating member, thereby changing the angle of the main frame portion relative to the floor surface.

[0011] A human body support apparatus according to claim 5 is the human body support apparatus according to claim 3 or 4, wherein the frame member further comprises a frame sole support portion formed near the bottom of the frame lower body support bottom portion.

[0012] The human body support device of claim 6 is the human body support device of claim 1, wherein the frame member further has a frame lower body support upper part that is rotatably attached to the frame main part and to which the casters are attached, and a second operating member that can operate the angle between the frame main part and the frame lower body support upper part, and the base is located above the floor surface and has a caster contact surface with which the casters come into contact, and the casters rotate and move in response to operation of the second operating member, thereby changing the angle of the frame main part with respect to the floor surface.

[0013] The human body support device described in claim 7 comprises an apparatus support base having an operating member and a bearing member attached to the upper part, an extension section that extends and retracts up and down by operating the operating member, and a base that is placed on the floor surface; a frame member having at least an axis member that is inserted into the bearing member of the extension section and rotatably attached thereto, and a frame main section fixed thereto, and a cushion member that contacts the frame member on the back side and can contact at least the upper and lower body of the human body on the front side, and is formed to support the human body; the frame member further has a frame lower body support upper section that is rotatably attached to the frame main section, and a second operating member that can operate the angle between the frame main section and the frame lower body support upper section; the base is located above the floor surface and has rollers that are in contact with the frame lower body support upper section and can rotate, and the angle of the frame main section with respect to the floor surface changes as the frame lower body support upper section moves in response to the extension and contraction of the extension section or the operation of the second operating member. [Effects of the Invention]

[0014] According to the human body support device of the present invention, the load of the human body can be distributed among the upper body, lower body, and soles of the feet (or the upper body and lower body), and the upper body and lower body can be tilted stably backward at a selected angle. [Brief explanation of the drawings]

[0015] [Figure 1]1 is a side view showing an example of a human body support apparatus according to an embodiment of the present invention. [Figure 2] FIG. 4 is a side view showing another example of the human body support apparatus. [Figure 3] 3 is a side view showing a modification of the human body support apparatus of FIG. 2. FIG. [Figure 4] FIG. 10 is a side view showing still another example of the human body support apparatus. [Figure 5] 5 is a side view showing still another example (an example different from FIG. 4) of the human body support apparatus of the same. FIG. [Figure 6] 1A and 1B are enlarged views of a part of the extension / contraction section of the human body support device together with the shaft member, where FIG. 1A is a side view and FIG. [Figure 7] 4 is an enlarged side view showing an example of a second operating member of the human body support apparatus. FIG. [Figure 8] 6 is a side view showing a modification of the human body support apparatus of FIG. 5. FIG. [Figure 9] FIG. 10 is a side view showing an example in which a small workbench is attached to the human body support device of the same. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Each of human body support apparatuses 1A, 1B, 1C, and 1D according to the present invention comprises an apparatus support base 2, a human body support base 3, and casters 4, as shown in Figures 1, 2 (and 3), 4, and 5. In Figures 1 to 5, corresponding components of human body support apparatuses 1A, 1B, 1C, and 1D are designated by the same reference numerals even though their specific shapes and the like are different.

[0017] The device support platform 2 has an extendable section 21 and a base 22. The base 22 is the portion placed on the floor F. The lower portion of the extendable section 21 is either integrally formed with or firmly fixed to the base 22, and the base 22 contacts the floor F over a relatively large area, stably fixing the lower portion of the extendable section 21 in position. In the human body support devices 1A, 1B, and 1C, the base 22 is shaped so as not to impede the casters 4 from retracting and approaching as described below. In the human body support device 1D, the base 22 has a caster contact surface 22a located above the floor F and contacting the casters 4. The device support platform 2 can be provided with casters with or, in some cases, without stoppers, so that it can be easily repositioned relative to the floor F. The floor F may be the top surface of flooring, carpet, rugs, tile carpets, floor tiles, floor sheets, etc., in a home or office.

[0018] The specific form of the telescopic section 21 is not particularly limited, but can be as follows. That is, as shown in FIGS. 6(a) and 6(b), the telescopic section 21 can be configured as a gas spring in which an upper telescopic section member (rod) 211 moves up and down relative to a lower telescopic section member (cylinder tube) 212. Gas is sealed inside the telescopic section 21. An unlocking pin 213 is provided at the top of the upper telescopic section member 211. When the unlocking pin 213 is pressed by an operating member 21a (described later), the lock is released and the telescopic section 21 becomes telescopic. In detail, when the unlocking pin 213 is pressed, the telescopic section 21 extends if the load acting on the upper telescopic section member 211 in the direction of gravity is small, or contracts if the load is large, and the length (height) at the time when the pressing of the unlocking pin 213 is finished is maintained (locked).

[0019] An operating member 21a and a bearing member 21b are attached to the upper part of the telescopic section 21. The operating member 21a is operated to extend and retract the telescopic section 21 up and down. The bearing member 21b is inserted into a shaft member 31 of the human body support platform 3, which will be described later, and rotatably supports it. The specific structure for attaching the operating member 21a and the bearing member 21b to the telescopic section 21 is not particularly limited, but in Figures 6(a) and (b), the bearing member 21b is fixed to the upper part of the telescopic section 21, and the operating member 21a is attached to it. Note that in Figures 6(a) and (b), the foreground part is shown as transparent so that the inside of the bearing member 21b can be seen.

[0020] The operating member 21a is a long member that can be bent as necessary, and extends to the vicinity of the left or right end of the human body support platform 3, where a grip portion 21aa is provided so that a user leaning against the human body support platform 3 can grasp it. The operating member 21a is attached to the bearing member 21b so as to be swingable around a fulcrum near one end (a contact portion with a fulcrum forming portion 21ba formed as part of the bearing member 21b), for example, and the grip portion 21aa can be used as the point of force, with the point of action being a portion located above the lock release pin 213 (see FIG. 6(a)). When a user presses down on the operating member 21a, the lock release pin 213 is pressed down. Note that the operating member 21a is only partially drawn in FIG. 6(a), but it actually extends toward the user. The fulcrum forming portion 21ba is omitted in FIG. 6(b).

[0021] The bearing member 21b is capable of stably supporting the shaft member 31 described later, and is formed with a bearing hole 21bb through which the shaft member 31 passes.

[0022] The human body support base 3 is formed to support the human body H by contacting at least the upper body HA (specifically, the back side) and lower body HB of the human body H. The human body support base 3 is provided with an axis member 31 and a frame member 32. The human body support base 3 also normally has a cushion member 33. The cushion member 33 is capable of contacting at least the upper body HA and lower body HB of the human body H on the front side. In Figures 1 to 5 (and Figure 8, which will be described later), the broken lines show the state in which the human body H has sunk slightly into the cushion member 33 due to its weight. The cushion member 33 may be provided with irregularities corresponding to the irregularities of the back of the upper body HA and the irregularities on the back side of the lower body HB. A pillow (not shown) may also be attached.

[0023] The shaft member 31 is long and is inserted into the bearing member 21b of the extension / contraction section 21 of the device support base 2 and is rotatably attached thereto. A stopper can be provided to prevent excessive rotation of the human body support base 3 backward. The shaft member 31 can be, for example, columnar or cylindrical in shape.

[0024] The frame member 32 has at least a main frame portion 321. The main frame portion 321 is fixed to the shaft member 31. The main frame portion 321 can support the human body H via (or in some cases without) a cushion member 33. The position at which the main frame portion 321 is fixed to the shaft member 31 is a position at which the main frame portion 321 is unlikely to rotate backward when a user applies a large load to the upper body HA, and can be, for example, a position higher than half the height from the floor F of the top portion 321a of the main frame portion 321. Furthermore, casters 4 are attached to the frame member 32, as will be described later.

[0025] The frame main part 321 can be made to be approximately the same as or slightly wider than the width of the human body H when the human body H is in contact with the human body support base 3, and the top part 321a can be made to be approximately the same as or slightly higher than the height of the human body H. In addition, the back surface of the frame main part 321 can be formed in a substantially linear shape when viewed from the side.

[0026] Next, the configuration of the frame member 32 in each of the human body support apparatuses 1A, 1B, 1C, and 1D other than those described above will be described.

[0027] In the human body support apparatus 1A, the frame member 32 has a frame sole support portion 322 in addition to a frame main portion 321 (see FIG. 1). The frame sole support portion 322 is capable of supporting the soles of the feet HC and is formed near the bottom portion 321b of the frame main portion 321. In the human body support apparatus 1A, the casters 4 are attached to the bottom portion 321b of the frame main portion 321.

[0028] In the human body support apparatus 1B, the frame member 32 has, in addition to a frame main portion 321, a frame sole support portion 322, a frame upper lower body support portion 323, a frame lower body support portion 324, a frame lower body support auxiliary portion 325, and a second operating member 326 (see FIGS. 2 and 3). The frame sole support portion 322 can support the soles of the feet HC, similar to that of the human body support apparatus 1A, but is formed near the bottom of the frame lower lower body support portion 324. In addition, in the human body support apparatus 1B, the casters 4 are attached to the bottom portion 321b of the frame main portion 321 (see FIG. 2) or the frame lower lower body support portion 324 (see FIG. 3). Note that the frame sole support portion 322 may be omitted in some cases.

[0029] The frame lower body support upper part 323 is capable of supporting the thighs of the lower body HB, and is rotatably attached to the frame main part 321.

[0030] The frame lower body support lower part 324 is capable of supporting the calves of the lower body HB, and is rotatably attached to the frame lower body support upper part 323.

[0031] Frame lower body support auxiliary part 325 is rotatably attached to both frame lower body support lower part 324 and frame main part 321. Frame lower body support auxiliary part 325 has the same length as frame lower body support upper part 323 so that it is parallel to frame lower body support upper part 323 regardless of the angle between frame main part 321 and frame lower body support upper part 323, and is attached to frame main part 321 at a position that is lower than the attachment position of frame lower body support upper part 323 by the length of frame lower body support lower part 324.

[0032] The second operating member 326 can adjust the angle between the frame main section 321 and the frame lower body support upper section 323. The second operating member 326 can use a planetary gear mechanism as shown in FIG. 7. In this case, the second operating member 326 has an internal gear 326a, multiple planetary gears 326b (three in FIG. 7) meshed with the internal gear 326a on the inside thereof, a sun gear 326c meshed with the multiple planetary gears 326b on the inside thereof, and a planetary carrier 326d that extracts the orbital motion of the multiple planetary gears 326b. The internal gear 326a and the sun gear 326c are concentric. In FIG. 7, portions of each member hidden by other members are indicated by dashed lines, and the planetary carrier 326d is assumed to be located at the farthest side, and portions of the planetary carrier 326d hidden by other members are indicated by dashed lines with shorter pitches. The second operating member 326 is not limited to one that uses a planetary gear mechanism, and may be a member that is just a handle or a member such as a lever.

[0033] The internal gear 326a can be fixed to the frame main part 321, the sun gear 326c can be fixed to a handle 326e that is held by the user, and the planetary carrier 326d can be fixed to the frame lower body support upper part 323. When the user turns the handle 326e by a large amount with a small force, the frame lower body support upper part 323 rotates slowly with a large force.

[0034] In the human body support apparatus 1C, the frame member 32 has casters 4 attached to the frame lower body support lower part 324 (described later), and in addition to the frame main part 321, has a frame sole support part 322, a frame lower body support upper part 323, a frame lower body support lower part 324, a second operating member 326, and a third operating member 327 (see FIG. 4). The frame sole support part 322 can support the soles of the feet HC, similar to that of the human body support apparatus 1A, but is formed near the bottom of the frame lower body support lower part 324. Note that the frame sole support part 322 can be omitted in some cases.

[0035] The frame lower body support upper part 323, the frame lower body support lower part 324, and the second operating member 326 are the same as those of the human body support apparatus 1B.

[0036] Third operating member 327 can operate the angle between frame lower body support upper part 323 and frame lower body support lower part 324. The third operating member 327 can be the same as the above-described second operating member 326. For example, a planetary gear mechanism similar to that shown in FIG. 7 can be used, in which case a portion similar to internal gear 326a can be fixed to frame lower body support upper part 323, a portion similar to sun gear 326c can be fixed to a portion similar to handle 326e that is held by the user, and a portion similar to planetary carrier 326d can be fixed to frame lower body support lower part 324.

[0037] In the human body support device 1D, the frame member 32 has casters 4 attached to the frame lower body support upper part 323 described below, and in addition to the frame main part 321, has the frame lower body support upper part 323 and a second operating member 326 (see Figure 5).

[0038] The frame lower body support upper part 323 and the second operating member 326 are the same as those of the human body support apparatus 1B.

[0039] In the human body support devices 1A, 1B, 1C, and 1D, the casters 4 are attached to the frame members 32 of the human body support platform 3, as described above. The casters 4 have wheels that come into contact with the floor surface F (in the case of the human body support device 1D, the caster contact surfaces 22a of the base 22 of the device support platform 2) and rotate in the direction in which force is applied, thereby moving forward and away from the extendable section 21 with a small force, or moving backward and towards the extendable section 21. It is preferable to provide two or more casters 4, but in some cases one caster may be sufficient.

[0040] Next, we will explain human body support apparatus 1D', which is a modification of human body support apparatus 1D. As shown in Fig. 8, human body support apparatus 1D' does not have casters 4, but instead has rollers 4' located above the floor surface F of base 22. The position of the axis of rollers 4' does not move in parallel, but is rotatable in contact with frame lower body support upper portion 326.

[0041] In each of the human body support devices 1A, 1B, 1C, 1D, and 1D' having the configuration described above, when a user tilts the frame main part 321 of the human body support platform 3 backward and leans against the human body support platform 3 from the upper body HA to the lower body HB, the load of the human body H can be distributed among the upper body HA, the lower body HB, and the soles of the feet HC (or, if the frame sole support part 322 of the human body support devices 1B and 1C is omitted, the upper body HA and the lower body HB).

[0042] Furthermore, in each of the human body support devices 1A, 1B, 1C, 1D, and 1D', the user operates the operating member 21a to extend or retract the extendable section 21 of the device support base 2, which causes the casters 4 to rotate and move according to the height of the extendable section 21, thereby easily changing the angle of the frame main section 321 relative to the floor surface F. For example, the angle of the frame main section 321 relative to the floor surface F increases as the extendable section 21 is extended, becoming closer to a standing orientation, and decreases as the extendable section 21 is retracted, becoming closer to a lying orientation. This makes it easy to change the proportion of the load of the human body H distributed between the upper body HA, lower body HB, and soles of the feet HC (or, if the frame sole support section 322 is omitted in the human body support devices 1B and 1C, between the upper body HA and lower body HB). For example, if the angle of the frame main section 321 relative to the floor surface F is small, the load on the upper body HA increases and the load on the soles of the feet HC or lower body HB decreases. On the other hand, if the angle of the frame main part 321 relative to the floor surface F is large, the load on the upper body HA will be small and the load on the soles HC or lower body HB will be large. The load on the upper body HA and lower body HB can be absorbed to some extent by the cushion member 33. The load on the soles HC can be absorbed to some extent by separately prepared footwear, and can also be reduced by the friction of the cushion member 33.

[0043] Here, in each of the human body support apparatuses 1A, 1B, 1C, 1D, and 1D', regardless of the angle of the frame main portion 321 relative to the floor surface F, the human body support platform 3 is supported by the bearing member 21b of the equipment support platform 2 via the shaft member 31, and is supported by the floor surface F via the casters 4 in the human body support apparatuses 1A, 1B, and 1C, by the caster contact surface 22a of the base 22 of the equipment support platform 2 in the human body support apparatus 1D, and by the rollers 4' in the human body support apparatus 1D', so that the upper body HA and lower body HB can be tilted stably backward at a selectable angle. Furthermore, in each of the human body support apparatuses 1A, 1B, 1C, 1D, and 1D', the grip portion 21aa of the operating member 21a is located in roughly the same place for the user regardless of the angle of the human body support platform 2, making it easy to operate the operating member 21a.

[0044] Furthermore, since human body support apparatus 1A does not have the upper frame lower body support portion 323 (or lower frame lower body support portion 324) of human body support apparatuses 1B, 1C, 1D, and 1D', the user uses the apparatus with the upper body HA and lower body HB in an extended position, but the structure is simpler than that of human body support apparatuses 1B, 1C, 1D, and 1D'. Furthermore, with human body support apparatus 1A, the user's upper body HA and lower body HB are in an extended position, so the burden on the lower back is greatly reduced, reducing the risk of illnesses such as lower back pain and herniated discs.

[0045] In the human body support apparatus 1B, the angle between the frame main part 321 and the frame lower body support upper part 323 can be changed by operating the second operating member 326 to change the angle between the frame main part 321 and the frame lower body support upper part 323, thereby changing the angle of the lower body HB. In the human body support apparatus 1B, the proportion of the load of the human body H distributed between the upper body HA, the lower body HB, and the soles of the feet HC (or the upper body HA and the lower body HB, if the frame foot support part 322 is omitted) can be easily and variably changed. Furthermore, in the human body support apparatus 1B, the angle between the frame main part 321 and the frame lower body support upper part 323 can be changed by operating the second operating member 326 as described above. Therefore, if the caster 4 is attached to the frame lower body support lower part 324, the caster 4 can be rotated and moved in response to the operation of the second operating member 326, similar to the operation of the operating member 21a, thereby changing the angle of the frame main part 321 with respect to the floor surface F. This allows fine adjustment of the angle of the upper body HA. In addition, in the human body support apparatus 1B, the large angle (close to 180 degrees) between the frame main part 321 and the frame lower body support upper part 323 reduces the burden on the lower back and reduces the causes of diseases such as lower back pain and herniated discs.

[0046] In human body support apparatus 1C, the angle of upper body HA can be changed by operating operation member 21a to change the angle of frame main portion 321, the angle of thighs of lower body HB can be changed by operating second operation member 326 to change the angle between frame main portion 321 and upper frame lower body support portion 323, and the angle of calves of lower body HB can be changed by operating third operation member 327 to change the angle between upper frame lower body support portion 323 and lower frame lower body support portion 324. In human body support apparatus 1C, the proportion of the load of human body H distributed between upper body HA, lower body HB, and soles of feet HC (or upper body HA and lower body HB if frame sole support portion 322 is omitted) can be easily and diversified. Furthermore, in the human body support apparatus 1C, as described above, the angle between the frame main portion 321 and the frame lower body support upper portion 323 can be changed by operating the second operating member 326, and the angle between the frame lower body support upper portion 323 and the frame lower body support lower portion 324 can be changed by operating the third operating member 327. Therefore, similar to the operation of the operating member 21a, the casters 4 rotate and move in response to the operation of the second operating member 326 or the third operating member 327, thereby changing the angle of the frame main portion 321 with respect to the floor surface F. This also enables fine adjustment of the angle of the upper body HA. Furthermore, in the human body support apparatus 1C, a large angle (close to 180 degrees) between the frame main portion 321 and the frame lower body support upper portion 323 reduces the strain on the lower back and reduces the risk of illnesses such as lower back pain and herniated discs.

[0047] In the human body support apparatus 1D and 1D′, similar to the human body support apparatus 1B, the angle between the frame main part 321 and the frame lower body support upper part 323 can be changed by operating the second operating member 326 to change the angle of the lower body HB. Although the human body support apparatus 1D and 1D′ have fewer components than the human body support apparatus 1B, the proportion of the load of the human body H distributed among the upper body HA, the lower body HB, and the soles of the feet HC can be easily and variably changed. Furthermore, in the human body support apparatus 1D and 1D′, the angle between the frame main part 321 and the frame lower body support upper part 323 can be changed by operating the second operating member 326 as described above. Therefore, similar to the operation of the operating member 21a, the angle of the frame main part 321 with respect to the floor surface F can be changed by moving the frame lower body support upper part 323 in response to the operation of the second operating member 326 (more specifically, in the human body support apparatus 1D, the caster 4 moves by rotating). This allows for fine adjustment of the angle of the upper body HA. In addition, in the human body support devices 1D and 1D', the large angle (close to 180 degrees) between the frame main part 321 and the frame lower body support upper part 323 reduces the burden on the lower back and reduces the causes of illnesses such as lower back pain and herniated discs.

[0048] In this way, the human body support apparatuses 1A, 1B, 1C, 1D, and 1D' make it possible to carry out work, study, or other activities over long periods of time.

[0049] Furthermore, various additional features can be added for this purpose. For example, in the human body support devices 1A, 1B, 1C, 1D, and 1D', handrails (not shown) can be attached to either the left or right side or both sides of the frame member 32 of the human body support platform 3. This handrail can also be attached to the frame member 32 so that it can rotate from the front side to the back side of the human body support platform 3 so as not to get in the way when the user moves from the outside to the center of the human body support platform 3 or vice versa.

[0050] Furthermore, when the angle of the frame main portion 321 relative to the floor surface F is large (close to the standing orientation), the human body support devices 1A, 1B, 1C, 1D, and 1D' can be used on a normal desk. However, when the angle of the human body support platform 3 relative to the floor surface F is small (close to the lying orientation), it may be difficult to use the human body support platform 3 on a normal desk. Therefore, as shown in FIG. 9 , a small workbench 34 can be attached to the frame member 32 via an arm 34A. The small workbench 34 can securely support a personal computer, keyboard, mouse, books, documents, writing implements, etc., and is preferably rotatable for user convenience. Furthermore, the arm 34A can also be attached to the frame member 32 so that it can be rotated from the front side of the human body support platform 3 to the back side so as not to get in the way when the user moves from the outside to the center of the human body support platform 3 or vice versa.

[0051] Furthermore, rails (not shown) can be laid on the human body support apparatuses 1A, 1B, 1C, and 1D so that the casters 4 can move on the rails. In this case, each of the human body support apparatuses 1A, 1B, 1C, and 1D is supported on the rails via the casters 4, and the casters 4 can move smoothly on the rails, so that the upper body HA and lower body HB can be tilted stably backward at a selected angle with even greater ease.

[0052] The above describes a human body support device according to an embodiment of the present invention, but the present invention is not limited to the embodiment described, and various design modifications are possible within the scope of the matters described in the claims. [Explanation of symbols]

[0053] 1A, 1B, 1C, 1D, 1D´ Human body support device 2 Device support stand 21 Telescopic part 211 Upper part of telescopic part 212 Extendable member 213 Unlocking pin 21a Operating member 21aa grip part 21b Bearing member 21ba fulcrum formation part 21bb bearing hole 22 Base 22a Caster contact area 3 Body support platform 31 Shaft member 32 Frame members 321 Main frame 321a Top of the main frame 321b Bottom of main frame 322 Frame sole support part 323 Frame Lower Body Support Upper 324 Frame Lower Body Support Lower Part 325 Frame lower body support auxiliary part 326 Second operating member 326a Internal gear 326b planetary gear 326c sun gear 326d Planetary Carrier 326e Handle 327 Third operating member 33 Cushion member 34 Small workbench 34A Arm 4 Casters 4´ Roller F Floor H human body HA upper body HB lower body HC sole

Claims

1. an apparatus support base having an operating member and a bearing member attached to an upper portion thereof, an extension / contraction portion that extends and contracts up and down by operating the operating member, and a base portion that is placed on a floor surface; a human body support base formed to support the human body, the base being provided with a frame member having at least a shaft member inserted through the bearing member of the extension / contraction section and rotatably attached thereto, a frame member having at least a frame main portion fixed thereto, and a cushion member that contacts the frame member on the back side and can contact at least the upper and lower halves of the human body on the front side; a caster attached to the frame member; Equipped with The casters rotate and move in response to the extension and contraction of the extension section, thereby changing the angle of the main frame part relative to the floor surface.

2. 2. The person-support apparatus of claim 1, The frame member further includes a frame sole support portion formed near the bottom portion of the frame main portion, The casters are attached to the bottom of the main frame of the person support device.

3. 2. The person-support apparatus of claim 1, The frame member further comprises: a frame lower body support upper portion rotatably attached to the frame main portion; a frame lower body support lower part rotatably attached to the frame lower body support upper part; a frame lower body support auxiliary portion rotatably attached to both the frame lower body support lower portion and the frame main portion; a second operating member that can operate the angle between the frame main portion and the frame lower body support upper portion, The casters are attached to the bottom of the main frame portion or the lower body support portion of the frame, When the casters are attached to the lower part of the frame lower body support, the casters rotate and move in response to operation of the second operating member, thereby changing the angle of the main frame part relative to the floor surface.

4. 2. The person-support apparatus of claim 1, The frame member further comprises: a frame lower body support upper portion rotatably attached to the frame main portion; a frame lower body support lower part rotatably attached to the frame lower body support upper part and having the casters attached thereto; a second operating member that can operate the angle between the frame main portion and the frame lower body support upper portion; a third operating member that can operate the angle between the frame lower body support upper portion and the frame lower body support lower portion, A human body support device in which the angle of the main frame part with respect to the floor surface is changed by rotating and moving the casters in response to operation of the second operating member or the third operating member.

5. 5. The person-support apparatus according to claim 3, The frame member further includes a frame sole support portion formed near the bottom of the frame lower body support portion.

6. 2. The person-support apparatus of claim 1, The frame member further comprises: a frame lower body support upper portion rotatably attached to the frame main portion and having the casters attached thereto; a second operating member that can operate the angle between the frame main portion and the frame lower body support upper portion, the base portion has a caster contact surface that is located above the floor surface and that the caster comes into contact with; The human body support device also changes the angle of the main frame portion relative to the floor surface by rotating and moving the casters in response to operation of the second operating member.

7. an apparatus support base having an operating member and a bearing member attached to an upper portion thereof, an extension / contraction portion that extends and contracts up and down by operating the operating member, and a base portion that is placed on a floor surface; a human body support base formed to support the human body, the base being provided with a frame member having at least a shaft member inserted through the bearing member of the extension / contraction section and rotatably attached thereto, a frame member having at least a frame main portion fixed thereto, and a cushion member that contacts the frame member on the back side and can contact at least the upper and lower halves of the human body on the front side; Equipped with The frame member further comprises: a frame lower body support upper portion rotatably attached to the frame main portion; a second operating member that can operate the angle between the frame main portion and the frame lower body support upper portion, the base portion is positioned above the floor surface and has a roller that is rotatable in contact with the frame lower body support upper portion, A human body support device in which the angle of the main frame part relative to the floor surface is changed by moving the upper part of the frame supporting the lower body in response to extension and contraction of the extension and contraction part or operation of the second operating member.

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