JP2009148415A - Knee support - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To relieve loads applied to the lower back when a user lies and to allow the user to easily turn over while sleeping. <P>SOLUTION: The knee support is located under a knee K of the user lying on the back to support the knee K. The knee support has an upward inclined surface 20A corresponding to the thigh U of the user to be gradually inclined upward from the part corresponding to the waist part B toward the part corresponding to the knee K, a downward inclined surface 20B corresponding to the lower leg L of the user to be gradually inclined downward from the part corresponding to the knee K to the part corresponding to the heel H, and a sideways inclined surface 30 formed in a part of the left or right end of the knee support to be gradually inclined downward from the center in the left/right direction to the left or right end. The front half part/rear half part of each left or right side edge is a side edge part corresponding to the thigh or lower leg when lying to be gradually inclined outward/inward from the front to the rear side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a device that allows a person with back pain to lie comfortably.

In particular, in recent years, the number of people who suffer from back pain has increased.
A person with low back pain wants to bend the lower back in a convex shape when lying down, such as going to bed. This avoids or reduces low back pain.
For this reason, when lying on the bed or the like (lie on its back), it is desirable to keep the knees in a floating state.

In order to solve this problem, Patent Document 1 discloses a leg rest having an inclined surface portion and a horizontal surface portion.
The inclined surface portion corresponds to the human upper leg portion in a lying state, and is an inclined surface that gradually moves upward from the portion corresponding to the waist portion to the portion corresponding to the knee. The horizontal surface portion is a substantially horizontal surface corresponding to the lower leg portion.

Then, the user lies down with the leg rest placed on the surface on which he / she wants to lie down, lies on his / her back, places the upper thigh on the inclined surface, and horizontally places the lower thigh Place the leg on the leg rest so that it rests on the surface.
Thus, the user's knee is maintained in a state of being lifted from the bedding (a position higher than the height of the waist in the supine state).

However, in the above-described leg-mounted body, the heel is also almost at the same height as the knee and is positioned higher than the waist.
For this reason, when trying to roll over from a supine state (a state lying on its back) to a recumbent state (a state lying on its side), a force is applied in a direction that rotates laterally with respect to the knee joint. It puts a strain on the knee and cannot turn over smoothly.
JP 2002-263146 A

  An object of the present invention is to provide an instrument that can reduce the burden on the waist when a person lies down and can easily turn over.

  In order to solve this problem, the invention according to claim 1 is a knee support device that is positioned below the knee of a user in a supine state and supports the knee, It almost corresponds to at least a part and gradually rises upward as it goes from the waist side to the knee side, and almost corresponds to at least a part of the user's lower leg part, from the knee side. It is a knee support having a downwardly inclined surface that gradually goes downward as it goes toward the heel side.

Here, “corresponds substantially to at least a part of the user's upper thigh,” includes “corresponds to at least a part of the user's upper thigh”. “Corresponding to (at least a part of) the user's upper thigh” means that the user's upper thigh (at least a part of) is along in the use state.
Similarly, “corresponds substantially to at least a part of the user's lower leg” includes “corresponds to at least a part of the user's lower leg”. “Corresponding to (at least a part of) the user's lower leg” means that the user's lower leg (at least a part) is along in the state of use.

In the knee support device of the present invention, the upper leg of a human (user) in a supine state is supported by the rising slope and / or the lower leg is also supported by the falling slope, and the user's heel is supported by the waist. And the user's knee is maintained at a position higher than the waist.
In addition to the above, or instead of the above (that is, the user's upper leg is not supported by the rising slope and the lower leg is not supported by the falling slope), the rising slope and the falling slope. In some cases, the user's knee may be supported by the boundary portion.

As described above, the user's knee in the supine state is maintained at a position higher than the waist, so that the waist is curved in a convex shape on the back side, and the burden on the user's waist is reduced. , Back pain is avoided or reduced.
Further, in this knee support, the heel is maintained at substantially the same height as the waist, and thus the user can easily turn over. That is, when the user rolls over from the supine state to the recumbent state or turns over in the opposite direction, the knee joint is not burdened.

  The invention according to claim 2 is a knee support device that is positioned below the knee of the user in the supine state and supports the knee, and gradually increases from the user's waist side toward the knee side. It has at least one of an upward inclined surface that faces upward, and a downward inclined surface that gradually goes downward as it goes from the knee side of the user toward the heel side, the user's upper leg, knee, and Support at least one of the crus from below and maintain the user's heel at approximately the same height as the user's waist, while keeping the user's knee from the user's waist and heel It is a knee support that maintains a high position.

As one form of this invention, there is the following.
As a first form, an ascending inclined surface corresponding to at least a part of the user's upper thigh and gradually going upward from the portion corresponding to the waist side to the portion corresponding to the knee side (upper thigh) There is a knee support having a substantially vertical surface that is substantially vertical, and an inclined surface that is inclined along the portion.
As a second form, it corresponds to at least a part of the user's upper thigh and gradually rises upward as it goes from the waist side to the knee side (inclination rising slope along the upper thigh) And a knee support having a descending inclined surface that is steeper than the user's lower leg.
As a 3rd form, it respond | corresponds to at least one part of the said user's lower leg part and the substantially perpendicular | vertical substantially vertical plane, and gradually goes toward the part corresponding to the side of the heel from the part corresponding to the knee side. There is a knee support having a downwardly inclined surface that faces downward (a downwardly inclined surface inclined along the lower leg).
As a 4th form, it corresponds to at least a part of the user's lower leg part, the rising slope surface steeper than the user's upper leg part, and from the part corresponding to the knee side to the heel side There is a knee support having a downward inclined surface (an inclined downward inclined surface along the lower leg) that gradually descends toward the corresponding portion.
As a 5th form, the ridge which has the rising inclination surface of a steep slope rather than a user's upper leg part, and the falling inclination surface of a steep inclination than a user's lower leg part, and is a boundary part of both surfaces There is a knee support device in which the user's knee is supported at the portion.
As a sixth embodiment, there is a knee support of the invention according to claim 1.
There may be various other aspects.

In the knee support device of the present invention, the upper leg of a human (user) in the supine state is supported by the rising slope and / or the lower leg is also supported by the falling slope, or the user's knee. Is supported at the boundary between the rising and falling slopes, and at least one of the user's upper leg, knee and lower leg is supported from below, and the user's The knee is maintained at a position higher than the waist and the heel while the heel is maintained at substantially the same height as the waist.
Thus, in the knee support device of the present invention, the same effect as the knee support device of the invention according to claim 1 is obtained, and it is avoided or reduced that the user feels back pain, and the user can turn over. It's easy to do.

  The invention according to claim 3 is the knee support of the invention according to claim 1 or claim 2, and is further formed on at least one of the left and right end portions, and the central portion in the left-right direction. It is a knee support which has a side inclined surface which goes to a downward direction gradually toward the said edge part from the side.

In the knee support of this invention, in addition to the action and effect of the knee support of the invention according to claim 1 or claim 2, the following action and effect are obtained.
In the knee support according to the present invention, at least one of the left and right end portions is formed with a side inclined surface that gradually decreases downward from the central portion side in the left-right direction toward the end portion. Therefore, the user can turn over more easily on the side where the side inclined surface is formed.
That is, the user can easily change from the supine state to the recumbent state by smoothly lowering the leg portion from the knee support along the side inclined surface. Moreover, the user can be easily in a supine state from a lying state by doing the reverse.

  The invention according to claim 4 is the knee support of the invention according to claim 1 or claim 2, and corresponds to the knee of the user on at least one of the left and right sides with respect to the center in the left-right direction. A knee support device in which a plurality of knee corresponding portions are provided, and among the plurality of knee corresponding portions, the one on the left and right end portions is formed at a lower position than the one on the center side in the left-right direction. .

Here, as the “knee-corresponding portion”, a ridge portion that is pointed upward or gently, a planar shape formed such that a part of the ridge portion is scraped, or a lower or lower component There are convex concave parts in the direction having Examples of the “ridge” include those formed at the boundary between the rising slope and the falling slope.
Further, as one aspect of "a plurality of knee corresponding portions corresponding to the user's knees are provided on at least one side of the left and right with respect to the center in the left-right direction", On each of the left and right sides, a plurality of knee-corresponding portions are provided corresponding to the left and right knees of the user (this is the same in the inventions according to other claims).
And, “the plurality of knee corresponding portions corresponding to the left and right knees of the user is provided,” there are two knee corresponding portions on each of the left and right sides corresponding to the closed leg state and the open leg state. In addition to the case where two legs are provided (ie, two pairs), there are three knee-corresponding portions on each of the left and right sides (ie, three pairs) corresponding to the closed leg state, the small leg open state, and the large leg open state. There are various modes such as being provided.
In the “multiple knee-compatible parts”, any of the above-mentioned ridges gradually becomes lower from the center side in the left-right direction toward the left and right ends, etc. There is also an aspect in which it is applicable (that is, there are innumerable knee corresponding parts).

In the knee support of this invention, in addition to the action and effect of the knee support of the invention according to claim 1 or claim 2, the following action and effect are obtained.
In the knee support device of the present invention, when the user in the supine state is closed (or close to the closed leg), the user uses the knee-corresponding portion on the center side, and the user opens the leg. In the state where the legs are opened more widely, the user uses the knee corresponding portions on the left and right end portions (more on the left and right end portions).
Here, in the case where the knee support (exactly, the portion corresponding to the knee) extends straight in the left-right direction (that is, linearly extends in the left-right direction), the user opens the legs more greatly. The distance from the lumbar region to the knee support becomes longer, and accordingly, the height of the user's knee in the knee support becomes lower.
And in the knee support of this invention, the knee corresponding part on the side of the left and right ends is formed at a lower position than the knee corresponding part on the center side.
Therefore, in the knee support device of the present invention, not only when the user in the supine state is closed, but also when the leg is opened, the knee is appropriately maintained at a position higher than the waist, and back pain is avoided or reduced. The

  The invention according to claim 5 is the knee support of the invention according to claim 4, wherein the plurality of knee corresponding portions extend in a length direction of the leg portion of the user and project in a direction having a lower component. It is a knee support tool which is a shape-shaped recessed part.

  Here, the “concave portion” is not limited to a curved shape such as having an arc-shaped cross section, but includes a shape having a flat bottom (horizontal plane).

In the knee support of the present invention, in addition to the effects of the knee support of the invention according to claim 4, the following functions and effects can be obtained.
In the knee support device of the present invention, the plurality of knee corresponding portions are provided corresponding to the left and right knees of the user, and the plurality of knee corresponding portions extend between the rising inclined surface and the falling inclined surface. Since it is a concave part that extends and has a downward component, it is possible to prevent or reduce the shift of the position of the knee positioned in the knee corresponding part.

  The invention according to claim 6 is the knee support of the invention according to claim 1 or claim 2, wherein at least one side of the left and right with respect to the center in the left-right direction, along the left-right direction, A knee corresponding portion corresponding to the user's knee is continuously formed, and at least the left and right end portions of the continuously formed knee corresponding portion gradually move toward the left and right end portions. The knee support device is inclined from the horizontal so as to be lowered.

  Here, as the “knee corresponding portion”, there is a ridge portion or the like that is pointed upward or gently sharpened. As an example, there is a ridge portion or the like that is pointed upward or gently at the boundary portion between the rising slope and the falling slope.

In the knee support device of the present invention, in the same manner as the knee support device of the invention according to claim 4, in addition to the operation effect of the knee support device of the invention according to claim 1 or 2, the following operation effect is obtained. .
In the knee support device of the present invention, when the user in the supine state is closed (or close to the closed leg), the center side portion of the knee-corresponding portion is used, and the user opens the leg ( In a state where the legs are more widely opened), the user uses the left and right end portions (more left and right end portions) of the knee corresponding portion.
Here, in the case where the knee support (exactly, the portion corresponding to the knee) extends straight in the left-right direction (that is, extends linearly), the more the user opens the leg, the more the user opens the leg. The distance to the knee support becomes longer, and accordingly, the height of the user's knee in the knee support becomes lower.
In the knee support device of the present invention, the left and right ends of the knee corresponding portions (at least the left and right end portions of the left and right knee corresponding portions with respect to the center in the left-right direction) The part on the side of the part is formed lower than the part on the center side.
Therefore, in the knee support device of the present invention, not only when the user in the supine state is closed, but also when the leg is opened, the knee is appropriately maintained at a position higher than the waist, and back pain is avoided or reduced. The
Moreover, in the knee support of this invention, since the knee corresponding | compatible part is continuously formed along the left-right direction, the user can use any part of them.

  The invention according to claim 7 is the knee support of the invention according to any one of claims 1 to 6, and corresponds to the rising inclined surface among at least one of the left and right side edges. A part is a knee support which gradually goes outward along the direction which goes to the part corresponding to the knee side from the part corresponding to the said user's waist | hip | lumbar part side in the said rising inclined surface.

In the knee support of this invention, in addition to the action and effect of the knee support of the invention according to any one of claims 1 to 6, the following action and effect are obtained.
In the knee support device of the present invention, the portion corresponding to the rising inclined surface of at least one of the left and right side edge portions corresponds to the knee side from the portion corresponding to the human waist side in the rising inclined surface. Gradually go outward along the direction toward the part to be done (this is called the side edge corresponding to the recumbent upper leg).
For this reason, the user lowers the leg from the knee support on the side where the lateral support upper leg corresponding side edge in the left-right direction of the knee support is formed, to the lateral support upper leg corresponding side edge. By placing the upper thigh along the upper leg, it is easy to be in a lying position with the waist bent convexly toward the back side and the knee bent.

  The invention according to claim 8 is the knee support of the invention according to any one of claims 1 to 6, and corresponds to the rising inclined surface among at least one of the left and right side edges. The part gradually goes outward along the direction from the part corresponding to the user's waist side in the rising inclined surface to the part corresponding to the knee side, and the part corresponding to the descending inclined surface is It is a knee support which gradually goes inward along the direction which goes to the part corresponding to the heel side from the part corresponding to the said user's knee side in the said downward inclined surface.

In the knee support of this invention, in addition to the action and effect of the knee support of the invention according to any one of claims 1 to 6, the following action and effect are obtained.
In the knee support device of the present invention, at least one of the left and right side edge portions, the portion corresponding to the rising slope surface corresponds to the knee side from the portion corresponding to the human waist side on the rising slope surface. Gradually outward along the direction toward the part (this is referred to as the side edge corresponding to the recumbent upper leg), and the part corresponding to the descending slope is on the side of the human knee on the descending slope It gradually goes inward along the direction from the corresponding part toward the part corresponding to the side of the heel (this is referred to as the side edge corresponding to the lateral crus).
For this reason, the user lowers the leg from the knee support on the side where the lateral side upper leg corresponding side edge and the side lateral leg corresponding side edge in the left-right direction of the knee support are formed, Easily bend the hips in a convex shape on the back side, with the upper leg along the side edge corresponding to the lying upper leg and the lower leg along the side edge corresponding to the lying lower leg Can be in a recumbent state.

  The invention according to claim 9 is the knee support of the invention according to any one of claims 1 to 8, further extending in opposite directions, and a mounting surface on which the knee support is mounted. A knee support having a pair of string-like or belt-like binders which are connected to each other around an article to be formed or an article group including the article.

In the knee support of this invention, in addition to the effect of the knee support of the invention which concerns on any one of Claims 1-8, the following effect is obtained.
In the knee support device of the present invention, the binding material circulates around the article forming the placement surface on which the knee support tool is placed or the article group including the article, thereby being coupled to each other. The movement of the tool is prevented or reduced.
For this reason, the user can use a knee support tool stably.

[Embodiment 1]
Next, Embodiment 1 of the present invention will be described with reference to FIGS.
As shown in FIG. 2 and FIG. 3, this knee support is composed of a filler 11 having sufficient elasticity, such as urethane, and a skin material 12 covering the filler 11.
And this knee support is used by being placed on a surface (horizontal or almost horizontal surface) on which a person lies, such as a floor surface, a bed, a mattress, or the like.

First, the shape of this knee support will be schematically described.
As shown in FIG. 1 to FIG. 4, this knee support is symmetrical in the left-right direction and has a symmetrical shape in the front-rear direction.
The knee support is formed on the front and rear as a pair of ascending inclined surfaces (front surface) 20A and descending inclined surface (rear surface) 20B (FIGS. 2 and 4), left and right end portions and the vicinity thereof. A pair of side inclined surfaces 30 (FIGS. 3 and 4) and a bottom surface 40 (FIGS. 2 and 3) are provided.
The bottom surface 40 has a single planar shape.

As shown in FIGS. 1 to 4, the center portion in the left-right direction of the knee support and the center portion in the front-rear direction in the vicinity thereof (that is, the portion other than the portions on the left and right end portions) The top ridge 25 extends. The top ridge portion 25 is straight and substantially linear.
As shown in FIGS. 1, 2, and 4, the slope is inclined downward toward the front side and the rear side from the top ridge portion 25, and an ascending slope 20 </ b> A and a descending slope 20 </ b> B are formed. Yes.
Also, as shown in FIGS. 1, 3, and 4, it is inclined from the vertical surface so as to go downward from the top ridge portion 25 toward the left and right ends, and a pair of left and right side inclined surfaces 30 is formed. Is formed.

As shown in FIGS. 1 and 4, the front and rear edges (the front lower edge of the ascending inclined surface 20A and the rear lower edge of the descending inclined surface 20B) of the knee support are parallel to each other. It has a straight line extending in the direction.
Also, the left and right side edges (the lower edge of each side inclined surface 30) of the knee support are pointed in a convex shape in the left and right directions.

Next, the shape of this knee support will be described in detail.
As shown in FIG. 2, this knee support is virtually formed by a vertical plane extending in the front-rear direction at the central portion in the left-right direction and in the vicinity thereof (that is, the portion other than the portions on the left and right ends). The cut longitudinal section has a substantially triangular shape.
And the upper edge part of the center part in the front-back direction is the top ridge part 25, 20 A of ascending inclined surfaces are formed toward the front side on the basis of the apex ridge part 25, and the descending inclined surface 20 B is formed toward the rear side. Has been.
The ascending inclined surface 20A and the descending inclined surface 20B have a substantially flat shape inclined from the vertical surface.

The apex ridge portion 25 corresponds to the knee K (the lower side) of a human (user) in a supine state in the use state.
Similarly, the rising inclined surface 20A corresponds to the upper leg U of the user. That is, in the use state, the user's upper leg U is along the rising inclined surface 20A.
That is, the front lower edge portion of the rising inclined surface 20A corresponds to the waist B of the user's upper thigh U, and the rising inclined surface 20A moves rearward from the front lower edge portion (that is, to the waist B). It is inclined so as to gradually go upward (as it goes from the corresponding part to the part corresponding to the knee K) and reaches the top ridge part 25.
Similarly, the descending inclined surface 20B corresponds to the user's lower leg L. That is, in the use state, the user's lower leg L is along the descending inclined surface 20B.
That is, the downward inclined surface 20B is inclined so as to gradually go downward as it goes rearward from the top ridge portion 25 (that is, from the portion corresponding to the knee K to the portion corresponding to the heel H). It reaches the rear lower edge. The rear lower edge portion of the descending inclined surface 20B corresponds to the heel H of the user's lower leg L.

As shown in FIG. 3, in the longitudinal section virtually cut by the vertical plane extending in the left-right direction at the center portion in the front-rear direction of the knee support, the center portion in the left-right direction and the vicinity thereof (that is, the left and right ends) The portion other than the portion on the side) is the top ridge portion 25 (described above), and the portions on the left and right end portions are the side inclined surfaces 30.
The top ridge part 25 is extended along the left-right direction at substantially the same height.
Each of the left and right side inclined surfaces 30 is inclined from the horizontal so as to gradually move downward as it goes from the top ridge portion 25 to the left and right ends. Each of the side inclined surfaces 30 has a curved surface that is curved so as to be slightly upward and outwardly convex.

As described above with reference to FIG. 4 and the like, the left and right side edges (the lower edge of each side inclined surface 30) of the knee support are pointed in a convex shape in the left and right directions.
That is, at any of the left and right side edges of the knee support, the front half (that is, the portion corresponding to the rising inclined surface 20A) moves from the front side toward the rear side (that is, the rising inclined surface 20A). (In the direction from the portion corresponding to the user's lower back B to the portion corresponding to the knee K) so as to gradually move outward (inclined from the front-rear direction). This portion is referred to as a side edge 35A corresponding to the recumbent upper leg.
Further, at any of the left and right side edges of the knee support, the rear half (that is, the portion corresponding to the descending inclined surface 20B) is directed from the front side to the rear side (that is, the descending inclined surface). It is inclined from the front-rear direction so as to gradually go inward (along the direction from the portion corresponding to the user's knee K in 20B toward the portion corresponding to the heel H). This portion will be referred to as a side edge 35B corresponding to the recumbent leg.
The recumbent upper leg corresponding side edge portion 35A corresponds to the upper leg U of the user in the lying state in which the waist B is curved in a convex shape on the back side and the knee K is bent. Also, the recumbent crus-corresponding side edge 35B corresponds to the user's crus L as well.

As described above with reference to FIG. 3, the left and right side inclined surfaces 30 are slightly above and in a longitudinal section virtually cut by a vertical plane extending in the left-right direction at the center in the front-rear direction of the knee support. It has a curved surface shape that curves outwardly.
At the same time, as shown in FIG. 1 and the like, the left and right side inclined surfaces 30 correspond to the above-mentioned side surface corresponding to the above-mentioned lateral heel thigh in each cross section virtually cut along a horizontal plane at each height of the knee support. Corresponding to the edge 35A and the side edge 35B corresponding to the recumbent crus, it is gently pointed outwardly in a convex shape.

Next, the usage method and effect of this knee support will be described.
As described above, the knee support is placed on the surface on which the user intends to lie. For example, a bed or a floor surface.
Then, as shown in FIG. 2, the user basically lies on his back. That is, it becomes a supine state.
At that time, as shown by a one-dot chain line in FIGS. 2 to 4, the user's upper leg U is supported by the rising slope 20 </ b> A, and the lower leg L is supported by the descending slope 20 </ b> B.
Note that the user's upper leg U is supported by the rising inclined surface 20A while the lower leg L is not supported by the descending inclined surface 20B (the lower leg L and the descending inclined surface 20B are not in contact). Or, the reverse usage may be possible.
Further, depending on the dimensional relationship between the knee support and the user's physique, the user's upper leg U does not contact (is not supported) with the rising inclined surface 20A, and the lower leg L also becomes the falling inclined surface 20B. There may be a usage mode in which the knee K is supported at the apex ridge portion 25 without contact (not supported).
In any case, by doing so, the user's heel H is maintained at substantially the same height as the waist B, while the user's knee K is maintained at a position higher than the waist B. Become.

  By maintaining the knee K at a position higher than the waist B in this manner, the waist B is maintained in a convexly curved state on the back side, and the burden applied to the waist B is reduced. Even if they have back pain, feeling back pain is avoided or reduced.

Moreover, in this knee support, since the heel H is maintained at substantially the same height as the waist B, the user can easily turn over.
That is, when the user rolls over from the supine state to the recumbent state (sideways lying down) or turns over in the opposite direction, the knee K joint is not burdened.
That is, if the heel H is maintained at substantially the same height as the knee K and is maintained at a position higher than the waist B, when turning over, the knee K is bent in the left-right direction with respect to the knee K joint. A force is applied and a load is applied to the joint of the knee K. However, in this knee support device, such a situation is avoided and a load is not applied to the joint of the knee K.

Further, in this knee support, as described above with reference to FIG. 3, since the side inclined surfaces 30 are formed at the left and right ends and in the vicinity thereof, the user also turns over at this point. Cheap.
That is, a user in a supine state can easily lie down on his / her back (lumbar region) by turning his / her body left or right and smoothly lowering the legs from the knee support along the side inclined surface 30. B can be in a recumbent state curved convexly toward the back side.
On the other hand, the recumbent user puts the leg (most part) on the knee support along the side inclined surface 30 while rotating the body in the direction opposite to the above. The aforementioned supine state can be easily obtained.

Further, in this knee support, as described above with reference to FIG. 4, the front half of the left and right side edges gradually goes outward from the front side toward the rear side. It is a part 35A, and the rear half is a side edge 35B corresponding to the lateral crus that gradually goes inward as it goes from the front side to the rear side.
For this reason, when the user is in a recumbent state in which the waist B is bent convexly toward the back side and the knee K is bent, the upper thigh U and lower thigh L of the legs are placed on the knee. It will be in the state along any one of the right and left edge parts of a support tool. In other words, the upper leg U is along the side edge 35A corresponding to the recumbent upper leg, and the lower leg L is along the side edge 35B corresponding to the recumbent leg.
In this way, the user can be in a recumbent state in which the waist B is bent convexly on the back side and the knee K is bent while the legs are lowered from the knee support.

[Modification 1 of Embodiment 1]
Next, a first modification of the first embodiment of the present invention will be described based on FIG. 5 with a focus on differences from the first embodiment. The same or common elements as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate. The same applies to the following.

  This knee support is a longitudinal section virtually cut by a vertical plane extending in the front-rear direction at the central portion in the left-right direction or in the vicinity thereof (that is, the portion other than the portions on the left and right ends). The support is substantially trapezoidal.

That is, this knee support is formed lower than the knee support of the first embodiment, and the top ridge 125 is wider than the top ridge 25 of the knee support of the first embodiment. That is, the top ridge part 125 has a straight belt shape.
A pair of ascending and descending inclined surfaces 20 </ b> A and 20 </ b> B are formed shorter than those of the first embodiment.
The rising inclined surface 20A corresponds to a part of the user's upper leg U, that is, a portion between the waist B and the vicinity of the knee K. The descending inclined surface 20B corresponds to a part of the user's lower leg L, that is, a portion between the vicinity of the knee K and the heel H.
Thus, in a state in which the user is using (a state in which the user is in a supine state), there is a considerable gap between the apex ridge portion 125 and the user's knee K (below).

  And by using it similarly to the knee support of Embodiment 1, the user's upper leg U is supported on the rising inclined surface 20A and / or the user's lower leg L on the descending inclined surface 20B. Are supported, and the same effects as the effects of the knee support of the first embodiment can be obtained.

[Modification 2 of Embodiment 1]
Next, Modification 2 of Embodiment 1 of the present invention will be described with reference to FIG.
In this knee support, two pairs of belts 50 extending in the left and right directions (opposite directions) are coupled to the bottom surface 40 (not indicated in FIG. 6; see FIG. 2 and the like). Each pair of belts 50 may be formed by a single belt.
The knee support is placed on the mattress of the bed (including the flooring disposed on the bed) and each pair of belts 50 goes around the mattress. The belt 50 is coupled.
Thus, the knee support is easily fixed to the upper surface (mounting surface) of the mattress.

[Embodiment 2]
Next, a second embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 8 a, 8 b, and 9, this knee support is composed of a filler 11 having sufficient elasticity, such as urethane, and a skin material 12 covering the filler 11.
And this knee support is used by being placed on a surface (horizontal or almost horizontal surface) on which a person lies, such as a floor surface, a bed, a mattress, or the like.

First, the shape of this knee support will be schematically described.
As shown in FIGS. 7 to 10, this knee support has a symmetrical shape in the front-rear direction as well as in the left-right direction.
The knee support has a pair of front and rear surfaces 220A and 220B (FIGS. 8a, 8b, and 10) and a bottom surface 240 (FIGs. 8a, 8b, and 9) on the front and rear as outer surfaces thereof. .
The bottom surface 240 has a single planar shape.

A central portion in the front-rear direction of the knee support is a ridge 225 extending in the left-right direction.
Of the ridge portion 225, the central portion and the vicinity thereof (that is, the portion other than the portions on the left and right end portions) are the top ridge portions 225a. The apex ridge 225a extends horizontally in the left-right direction.
Of the ridge portion 225, the left and right end portions are inclined ridge portions 225b. The oblique ridge portion 225 b extends in a substantially arc shape so as to be curved upward and outward, and reaches the bottom surface 240.

Then, as shown in FIGS. 7, 8a, 8b, and 10, the front surface 220A and the rear surface 220B are formed so as to incline downward from the ridge 225 toward the front side and the rear side. ing.
Of the front surface 220A and the rear surface 220B, portions substantially corresponding to the apex ridge portion 225a are an ascending inclined surface 220Aa and a descending inclined surface 220Ba.
Similarly, the portions substantially corresponding to the oblique ridge portion 225b are the sub rising inclined surface 220Ab and the sub falling inclined surface 220Bb.

As shown in FIGS. 7 and 10, the front edge and the rear edge (the front lower edge of the rising inclined surface 220Aa and the rear lower edge of the falling inclined surface 220Ba) of the knee support are parallel to each other. It has a straight line extending in the direction.
Also, the left and right side edges of this knee support (the lower edges of the left and right surfaces including the inclined ridge portion 225b and the sub-rising inclined surface 220Ab and the sub-lowering inclined surfaces 220Bb) are respectively left and right. It is pointed convexly outward.

As shown in FIGS. 7 to 10, the ridge 225 (more precisely, the ridge 225 and its vicinity, and the boundary between the front surface 220A and the rear surface 220B) has two pairs of knee-corresponding recesses (215a, 215b) is formed.
In other words, a pair of left and right closed knee corresponding recesses 215a is formed in the apex ridge 225a. In each of the pair of left and right oblique ridges 225b, an open leg knee corresponding recess 215b is formed.

Next, the shape of this knee support will be described in detail.
As shown in FIG. 8a, this knee support is virtually formed by a vertical plane extending in the front-rear direction at the center portion in the left-right direction and in the vicinity thereof (that is, the portion other than the portions on the left and right ends). In the cut longitudinal section, it is substantially trapezoidal.
And the upper edge part of the center part in the front-back direction is the top ridge part 225a, the rising inclined surface 220Aa is formed toward the front side with respect to the top ridge part 225a, and the falling inclined surface 220Ba is formed toward the rear side. Has been.
As shown in FIGS. 7, 8 a, and 10, the ascending inclined surface 220 </ b> Aa and the descending inclined surface 220 </ b> Ba have a substantially planar shape that is inclined from the vertical plane (this has been described above). Further, the ascending inclined surface 220Aa and the descending inclined surface 220Ba do not incline from the left-right direction and extend along the left-right direction.

As shown in FIG. 8b, this knee support also has a substantially trapezoidal shape in a vertical section virtually cut by a vertical plane extending in the front-rear direction at the left and right ends. However, it has a trapezoidal shape smaller than that of the vertical cross section including the top ridge 225a (FIG. 8a).
And the upper edge part of the center part in the front-back direction is the oblique ridge part 225b, the sub rising inclined surface 220Ab is formed toward the front side with respect to the oblique ridge part 225b, and the sub descending inclined surface 220Bb toward the rear side. Is formed.
As shown in FIGS. 7, 8 a, and 10, the sub ascending inclined surface 220 </ b> Ab and the sub descending inclined surface 220 </ b> Bb are inclined from the vertical plane (this is described above) and are also inclined from the left-right direction.
That is, the left / right sub-rising inclined surface 220Ab gradually moves toward the rear as it goes to the left / right. Further, the left / right side sub-declining inclined surface 220Bb gradually toward the front side toward the left / right side.

As described above with reference to FIGS. 7 to 10, the apex ridge 225a is formed with a pair of left and right closed knee corresponding recesses 215a. That is, the pair of closed leg knee corresponding recesses 215a are provided adjacent to each other at the ridge 225 (the top ridge 225a).
The knee-corresponding recess 215a has a substantially downwardly convex arcuate curved surface in the front-rear direction (that is, the length direction of the user's leg) at the apex ridge 225a (exactly including the vicinity thereof). It has a shape that extends.

As shown in FIGS. 8 a, 9, and 10, the closed leg knee corresponding recess 215 a corresponds to the knee K (the lower side) of the human (user) in the supine state with the closed leg in the use state.
Similarly, the rising inclined surface 220Aa corresponds to the upper leg U of the user. That is, in the use state, the user's upper leg U is along the rising inclined surface 220Aa.
That is, the front lower edge portion of the ascending inclined surface 220Aa corresponds to the waist B of the user's upper thigh U, and the ascending inclined surface 220Aa moves backward from the front lower edge portion (that is, to the waist B). It gradually tilts upward (as it goes from the corresponding part to the part corresponding to the knee K) and reaches the top ridge part 225a.
Similarly, the descending inclined surface 220Ba corresponds to the lower leg L of the user. That is, in the use state, the user's lower leg L is along the descending inclined surface 220Ba.
That is, the descending inclined surface 220Ba is inclined so as to gradually go downward as it goes rearward from the top ridge 225a (that is, from the portion corresponding to the knee K to the portion corresponding to the heel H). It reaches the rear lower edge. The rear lower edge portion of the descending inclined surface 220Ba corresponds to the heel H of the user's lower leg L.

Similarly, as described above with reference to FIGS. 7 to 10, each of the pair of left and right oblique ridges 225 b is formed with one open leg knee corresponding recess 215 b. That is, the pair of knee-opening concave portions 215b for the leg is provided in the ridge portion 225 so as to be separated in the left-right direction.
The open leg knee-corresponding recess 215b has an arcuate curved surface that protrudes downward and inward in an oblique direction at the oblique ridge portion 225b (exactly in the vicinity thereof). The shape extends in the length direction of the part.
The open leg knee corresponding recess 215b (the bottom) is formed at a position lower than the closed leg knee corresponding recess 215a (the bottom).
That is, when the knee K is not moved in the front-rear direction but is moved only in the left-right direction based on the above-mentioned closed leg state to be in the open leg state, the height of the knee K is lower than that in the closed leg state. Become. Correspondingly, the open knee corresponding recess 215b (the bottom) is formed at a lower position than the closed leg knee corresponding recess 215a (the bottom).

As shown in FIGS. 8b, 9, and 10, the open knee corresponding recess 215 b corresponds to the knee K (the lower side) of the human (user) in the supine state in the open state.
And sub ascending inclined surface 220Ab is spaced apart and opposed to the user's upper thigh U, and is located below and rearward of the user's upper thigh U. The sub-rising inclined surface 220Ab gradually goes upward as it goes from the user's waist B side to the knee K side.
Further, the sub descending inclined surface 220Bb faces the user's lower leg L while being spaced apart, and is positioned below and rearward of the user's lower leg L. The sub descending inclined surface 220Ab gradually goes downward as it goes from the user's knee K side to the heel H side.

As described above with reference to FIG. 10 and the like, the left and right side edge portions (the lower edge portions of the left and right sub-upward inclined surfaces 220Ab, the oblique ridge portions 225b and the sub-lowered inclined surface 220Bb) of the knee support are left and right. It is pointed in a convex shape in each direction.
That is, at any of the left and right side edges of the knee support, the front half (that is, the portion corresponding to the sub-rising inclined surface 220Ab) moves from the front side to the rear side (that is, on the front surface 220A). It is inclined from the front-rear direction so as to gradually go outward (along the direction from the portion corresponding to the user's waist B to the portion corresponding to the knee K). This portion is referred to as a side edge portion 235A corresponding to the recumbent thigh.
Further, at any of the left and right side edge portions of the knee support, the rear half (that is, the portion corresponding to the sub descending inclined surface 220Bb) is directed from the front side to the rear side (that is, the rear surface 220B). (In the direction from the portion corresponding to the user's knee K to the portion corresponding to the heel H) so as to gradually go inward (inclined from the front-rear direction). This portion is referred to as a lateral side limb portion 235B corresponding to the recumbent crus.
The recumbent upper leg corresponding side edge 235A corresponds to the upper leg U of the user who is lying down with the knee K bent while the lumbar part B is convexly curved toward the back side. Also, the recumbent crus-corresponding side edge 235B also corresponds to the user's crus L.

Next, the usage method and effect of this knee support will be described.
As described above, the knee support is placed on the surface on which the user intends to lie. For example, a bed or a floor surface.
As shown in FIGS. 8a and 8b, the user basically lies on his back. That is, it becomes a supine state.

As shown by the one-dot chain line in FIGS. 8a, 9 and 10, when the user lies on his back in the closed state (closed leg supine state), the knee K is positioned in the closed leg corresponding knee 215a (fitting) )
At that time, the upper leg U of the user is supported by the rising inclined surface 220Aa, and the lower leg L is supported by the falling inclined surface 220Ba.
Note that the user's upper leg U is supported by the rising slope 220Aa while the lower leg L is not supported by the lower slope 220Ba (the lower leg L and the lower slope 220Ba are not in contact). Or, the reverse usage may be possible.
Further, depending on the dimensional relationship between the knee support and the user's physique, the user's upper leg U does not contact (is not supported) with the rising inclined surface 220Aa, and the lower leg L also has the falling inclined surface 220Ba. There may be a use mode in which the knee K (exactly in the vicinity) is not contacted (not supported) and is supported in the closed leg knee corresponding recesses 215a (exactly the front and rear edges thereof). In this case, the front and rear edges of the closed leg knee corresponding recess 215a may be recessed by being elastically compressed.
In any case, by doing so, the user's heel H is maintained at substantially the same height as the waist B, while the user's knee K is maintained at a position higher than the waist B. Become.

On the other hand, as shown by a two-dot chain line in FIGS. 8b, 9 and 10, when the user lies on his / her back in an open state (open leg supine state), the knee K is used as the open leg knee corresponding recess 215b. Position (fit).
At that time, the user's upper leg U faces the sub-rising inclined surface 220Ab (but they do not contact), and the lower leg L faces the sub-lowering inclined surface 220Bb (but both do not contact). ).
Then, the knee K (exactly in the vicinity thereof) is supported by the open leg knee corresponding recesses 215b (exactly, the respective front and rear edges thereof). In this case, the front and rear edges of the knee-opening concave portion 215b may be recessed by being elastically compressed.
In this way, the user's heel H is maintained at substantially the same height as the waist B, and the user's knee K is maintained at a position higher than the waist B.

  As described above, in this knee support device, the knee B is maintained at a position higher than the waist B even when the user in the supine state is in the closed leg state or in the open leg state, so that the waist B is the back surface. It is maintained in a convexly curved state to the side, the burden on the lower back B is reduced, and even if the user originally has lower back pain, it is avoided or reduced to feel back pain.

  Further, in this knee support device, the knee K becomes a knee-corresponding recess (a closed knee-corresponding recess 215a or an open-leg knee-corresponding recess 215b) even when the user in a supine state is in an open leg state or a closed leg state. Since it is used so as to fit, the knee K is stably supported.

Moreover, in this knee support, since the heel H is maintained at substantially the same height as the waist B, the user can easily turn over.
That is, when the user rolls over from the supine state to the recumbent state (sideways lying down) or turns over in the opposite direction, the knee K joint is not burdened.
That is, if the heel H is maintained at substantially the same height as the knee K and is maintained at a position higher than the waist B, when turning over, the knee K is bent in the left-right direction with respect to the knee K joint. A force is applied and a load is applied to the joint of the knee K. However, in this knee support device, such a situation is avoided and a load is not applied to the joint of the knee K.

In this knee support, as described above with reference to FIG. 10, the front half of the left and right side edges gradually moves outward from the front side toward the rear side. The portion 235A is also a side edge portion 235B corresponding to the lateral crus that gradually goes inward as the rear half thereof goes from the front side toward the rear side.
For this reason, when the user is in a recumbent state in which the waist B is bent convexly toward the back side and the knee K is bent, the upper thigh U and lower thigh L of the legs are placed on the knee. It will be in the state along any one of the right and left edge parts of a support tool. In other words, the upper leg U is along the side edge 235A corresponding to the lying upper leg and the lower leg L is along the side edge 235B corresponding to the lying lower leg.
In this way, the user can be in a recumbent state in which the waist B is bent convexly on the back side and the knee K is bent while the legs are lowered from the knee support.

[Modification of Embodiment 2]
Next, a modification of the second embodiment of the present invention will be described based on FIG. 11 with a focus on differences from the second embodiment. The same or common elements as those of the second embodiment are denoted by the same reference numerals, and description thereof is omitted as appropriate.

In this knee support, two pairs of belts 250 extending in the left and right directions (reciprocal directions) are coupled to the bottom surface 240 (not shown in FIG. 11; see FIGS. 8a, 8b, etc.). Each pair of belts 250 may be formed by a single belt.
The knee support is placed on the mattress of the bed (including the mattress and the like disposed thereon), and each pair of belts 250 circulates around the mattress. The belt 250 is coupled.
Thus, the knee support is easily fixed to the upper surface (mounting surface) of the mattress.
[Embodiment 3]
Next, Embodiment 3 of the present invention will be described with reference to FIGS.
The third embodiment relates to the first and second embodiments, and will be described focusing on the differences from the second embodiment. Elements that are the same as those in the second embodiment are denoted by reference numerals obtained by adding “100” to the reference numerals in the second embodiment, and description thereof is omitted as appropriate.

First, the shape of this knee support will be schematically described.
This knee support has, as its outer surface, a pair of front surface 320A, rear surface 320B (FIGS. 13a, 13b, and 15) and a bottom surface 340 (FIGs. 13a, 13b, and 14).

A central portion in the front-rear direction of the knee support is a ridge 325 extending in the left-right direction.
Of the ridge portion 325, the central portion and the vicinity thereof (that is, the portion other than the portions on the left and right end portions side) are the top ridge portion 325a. The top ridge portion 325a has a linear shape that extends horizontally in a straight line.
Of the ridge portion 325, a portion on the left and right end portions is an oblique ridge portion 325b. The oblique ridge portion 325b is inclined from the vertical so as to be directed downward toward the left and right ends. The oblique ridge portion 325b is also a straight line.
The ridge portion 325 (both the top ridge portion 325a and the oblique ridge portion 325b) corresponds to the knee corresponding portion of the present invention.

12, 13 a, 13 b, and 15, the front surface 320 </ b> A and the rear surface 320 </ b> B are formed so as to be inclined downward from the ridge 325 toward the front side and the rear side. ing.
Of the front surface 320A and the rear surface 320B, portions substantially corresponding to the apex ridge portion 325a are the rising inclined surface 320Aa and the falling inclined surface 320Ba.
Similarly, the portions substantially corresponding to the oblique ridge portion 325b are the sub rising inclined surface 320Ab and the sub falling inclined surface 320Bb.

As shown in FIGS. 12 and 15, the front edge portion and the rear edge portion (the front lower edge portion of the rising inclined surface 320 </ b> Aa and the rear lower edge portion of the falling inclined surface 320 </ b> Ba) of the knee support device are parallel to each other. It has a straight line extending in the direction.
Further, the left and right side edge portions of the knee support (the lower edge portions of the left and right surfaces including the inclined ridge portion 325b and the sub rising inclined surface 320Ab and the sub falling inclined surfaces 320Bb) are respectively left and right. It is pointed convexly outward.

Next, the shape of this knee support will be described in detail.
As shown in FIG. 13a, this knee support is virtually formed by a vertical plane extending in the front-rear direction at the center portion in the left-right direction and in the vicinity thereof (that is, the portion other than the portions on the left and right ends). The cut longitudinal section has a substantially triangular shape.
And the upper edge part of the center part in the front-back direction is the top ridge part 325a, the ascending inclined surface 320Aa is formed toward the front side with respect to the top ridge part 325a, and the descending inclined surface 320Ba is formed toward the rear side. Has been.
As shown in FIGS. 12, 13a, and 15, the ascending inclined surface 320Aa and the descending inclined surface 320Ba have a substantially planar shape that is inclined from the vertical surface (this has been described above). Further, the ascending inclined surface 320Aa and the descending inclined surface 320Ba are not inclined from the left-right direction, but extend along the left-right direction.

As shown in FIG. 13b, this knee support has a substantially triangular shape in a longitudinal section virtually cut by a vertical plane extending in the front-rear direction also at the left and right end portions. However, it is substantially similar to the longitudinal section including the top ridge 325a (FIG. 13a), but has a smaller triangular shape.
And the upper edge part of the center part in the front-back direction is the oblique ridge part 325b, the sub rising inclined surface 320Ab is formed toward the front side with respect to the oblique ridge part 325b, and the sub descending inclined surface 320Bb toward the rear side. Is formed.
As shown in FIGS. 12, 13 a, and 15, the sub ascending inclined surface 320 Ab and the sub descending inclined surface 320 Bb are inclined from the vertical plane (this is described above) and are also inclined from the left and right directions.
That is, the left / right sub-rising inclined surface 320Ab gradually moves toward the rear side as it goes to the left / right side. Further, the left / right side sub-inclined inclined surface 320Bb gradually toward the front side toward the left / right side.

As shown in FIGS. 13a, 14, and 15, the apex ridge 325 a corresponds to the knee K (the lower side) of a human (user) in the supine state who is closed in the use state.
Similarly, the rising inclined surface 320Aa corresponds to the upper leg U of the user. That is, in the use state, the user's upper leg U is along the rising inclined surface 320Aa.
That is, the front lower edge portion of the ascending inclined surface 320Aa corresponds to the waist B of the user's upper thigh U, and the ascending inclined surface 320Aa moves backward from the front lower edge portion (that is, to the waist B). It gradually tilts upward (as it goes from the corresponding portion to the portion corresponding to the knee K) and reaches the top ridge 325a.
Similarly, the descending inclined surface 320Ba corresponds to the lower leg L of the user. That is, in the use state, the user's lower leg L is along the descending inclined surface 320Ba.
That is, the downward inclined surface 320Ba is inclined so as to gradually go downward from the top ridge portion 325a toward the rear (that is, from the portion corresponding to the knee K toward the portion corresponding to the heel H). It reaches the rear lower edge. The rear lower edge portion of the descending inclined surface 320Ba corresponds to the heel H of the user's lower leg L.

As shown in FIGS. 13b, 14, and 15, the oblique ridge portion 325 b corresponds to the knee K (the lower side) of a supine person (user) who is in a supine position when in use.
The knee K is located at any one of the oblique ridges 325b according to the degree of leg opening of the user.
That is, when the knee K is not moved in the front-rear direction but is moved only in the left-right direction based on the above-mentioned closed leg state to be in the open leg state, the height of the knee K is lower than that in the closed leg state. Become. Correspondingly, the oblique ridges 325b are gradually lowered in the left and right directions.
And sub ascending inclined surface 320Ab is spaced apart and opposed to the user's upper leg U, and is positioned below and rearward of the user's upper leg U. The sub-rising inclined surface 320Ab gradually goes upward as it goes from the user's waist B side to the knee K side.
In addition, the sub descending inclined surface 320Bb faces the user's lower leg L at a distance, and is positioned below and rearward of the user's lower leg L. The sub descending inclined surface 320Bb gradually goes downward as it goes from the user's knee K side to the heel H side.

As described above with reference to FIG. 15 and the like, the left and right side edge portions (the lower edge portions of the left and right sub-rising inclined surfaces 320Ab, the oblique ridge portions 325b, and the sub-lowering inclined surface 320Bb) of the knee support are left and right. It is pointed in a convex shape in each direction.
That is, at any of the left and right side edges of the knee support, the front half (that is, the portion corresponding to the sub-rising inclined surface 320Ab) moves from the front side to the rear side (that is, at the front surface 320A). It is inclined from the front-rear direction so as to gradually go outward (along the direction from the portion corresponding to the user's waist B to the portion corresponding to the knee K). This portion is referred to as a side edge portion 335A corresponding to the recumbent upper leg.
Further, at any of the left and right side edges of the knee support, the rear half (that is, the portion corresponding to the sub descending inclined surface 320Bb) is directed from the front side to the rear side (that is, the rear surface 320B). (In the direction from the portion corresponding to the user's knee K to the portion corresponding to the heel H) so as to gradually go inward (inclined from the front-rear direction). This portion is referred to as a side limb part corresponding side edge portion 335B.
The recumbent upper leg corresponding side edge 335A corresponds to the upper leg U of the user who is lying down with the knee K bent while the waist B is curved in a convex shape on the back side. Also, the recumbent crus-corresponding side edge 335B corresponds to the user's crus L in the same manner.

Next, the usage method and effect of this knee support will be described.
As shown by the one-dot chain line in FIG. 13a, FIG. 14, and FIG. 15, when the user lies on his / her back in the closed state (closed leg supine state), the knee K is positioned at the apex ridge 325a (more precisely, In general, it is located slightly above it).
At that time, the user's upper leg U is supported by the rising slope 320Aa, and the lower leg L is supported by the descending slope 320Ba.
It should be noted that the user's upper leg U is supported by the ascending inclined surface 320Aa while the lower leg L is not supported by the descending inclined surface 320Ba (the lower leg L and the descending inclined surface 320Ba are not in contact). Or, the reverse usage may be possible.
In any case, by doing so, the user's heel H is maintained at substantially the same height as the waist B, while the user's knee K is maintained at a position higher than the waist B. Become.

On the other hand, as shown by a two-dot chain line in FIGS. 13b, 14, and 15, when the user lies on his / her back in an open state (open leg supine state), the knee K is positioned on the oblique ridge portion 325 b.
Thus, the knee K is supported by the oblique ridge 325b.
In that case, the user's upper leg U faces the sub-rising inclined surface 320Ab (but they do not contact each other), and the lower leg L faces the sub-lowering inclined surface 320Bb (but both do not contact). ).
In this way, the user's heel H is maintained at substantially the same height as the waist B, and the user's knee K is maintained at a position higher than the waist B.

As described above, in this knee support device, the knee B is maintained at a position higher than the waist B even when the user in the supine state is in the closed leg state or in the open leg state, so that the waist B is the back surface. It is maintained in a convexly curved state to the side, the burden on the lower back B is reduced, and even if the user originally has lower back pain, it is avoided or reduced to feel back pain.
In addition, the same effects as those of the knee support device of the second embodiment can be obtained.
Furthermore, in this knee support, the oblique ridges 325b as the knee-corresponding portions are continuously formed along the left-right direction, so that the user can use any of them. .
Further, for the third embodiment, a modification similar to the modification in the second embodiment is also conceivable.

  Note that the above is merely an embodiment of the present invention, and it is needless to say that the present invention can be implemented in various modifications based on the knowledge of those skilled in the art.

For example, in the first to third embodiments (including the modified example), it is not always necessary that both of the rising inclined surfaces 20A, 220Aa, and 320Aa and the falling inclined surfaces 20B, 220Ba, and 320Ba exist. Only one of them may be present, and a substantially vertical surface (substantially vertical surface) may be present as corresponding to the other.
Further, the ascending inclined surfaces 20A, 220Aa, and 320Aa do not necessarily correspond to the upper thigh U or a part thereof, and may be slopes steeper than that. Similarly, the descending inclined surfaces 20B, 220Ba, and 320Ba do not necessarily correspond to the crus L or a part thereof, and may be slopes steeper than that.
That is, for example, ascending inclined surfaces 20A, 220Aa, 320Aa corresponding to the upper leg U (or a part thereof), and a substantially vertical surface (or descending inclined surfaces 20B, 220Ba of slopes steeper than the lower leg L). , 320B) is formed, the upper leg U is supported by the rising inclined surfaces 20A, 220Aa, 320Aa, while the lower leg L is not supported by a substantially vertical surface or the like. The knee K is maintained at a position higher than the waist B and the heel H.
Similarly, ascending inclined surfaces 20A, 220Aa, and 320A that are steeper than the upper leg U, and descending inclined surfaces 20B and 220Ba that correspond to the lower leg U (or part thereof). , 320Ba is formed, the lower leg L is supported by the descending inclined surfaces 20B, 220Ba, 320Ba, while the upper leg L is not supported by the substantially vertical surface or the like. K is maintained at a position higher than the waist B and the heel H.

  Further, in the second and third embodiments, of the front surfaces 220A and 320A, both the ascending inclined surfaces 220Aa and 320Aa and the sub ascending inclined surfaces 220Ab and 320Ab may not necessarily exist. There may be a substantially vertical surface (substantially vertical surface) as a corresponding to the other. The same applies to the rear surfaces 220B and 320B.

It is a perspective view which shows the knee support tool of Embodiment 1 of this invention. It is a longitudinal cross-sectional view of the knee support tool of Embodiment 1 of this invention. It is the longitudinal cross-sectional view virtually cut | disconnected by the vertical surface extended in the front-back direction in the center part in the left-right direction of a knee support tool, or its vicinity. It is a longitudinal cross-sectional view of the knee support tool of Embodiment 1 of this invention. It is the longitudinal cross-sectional view virtually cut | disconnected by the vertical surface extended in the left-right direction in the center part in the front-back direction of a knee support. It is a top view of the knee support of Embodiment 1 of the present invention. It is a longitudinal cross-sectional view of the knee support of the modification 1 of Embodiment 1 of this invention. It is the longitudinal cross-sectional view virtually cut | disconnected by the vertical surface extended in the front-back direction in the center part in the left-right direction of a knee support tool, or its vicinity. It is a perspective view which shows the knee support tool of the modification 2 of Embodiment 1 of this invention. It is a perspective view which shows the knee support tool of Embodiment 2 of this invention. It is a longitudinal cross-sectional view of the knee support tool of Embodiment 2 of this invention. It is the longitudinal cross-sectional view cut | disconnected virtually by the vertical surface of VIIIa-VIIIa in FIG. It is a longitudinal cross-sectional view of the knee support tool of Embodiment 2 of this invention. It is the longitudinal cross-sectional view cut | disconnected virtually by the vertical surface of VIIIb-VIIIb in FIG. It is a longitudinal cross-sectional view of the knee support tool of Embodiment 2 of this invention. It is the longitudinal cross-sectional view virtually cut | disconnected by the vertical surface extended in the left-right direction in the center part in the front-back direction of a knee support. It is a top view of the knee support tool of Embodiment 2 of the present invention. It is a perspective view which shows the knee support tool of the modification of Embodiment 3 of this invention. It is a perspective view which shows the knee support tool of Embodiment 3 of this invention. It is a longitudinal cross-sectional view of the knee support tool of Embodiment 3 of this invention. It is the longitudinal cross-sectional view virtually cut | disconnected by the vertical surface of VIIIa-VIIIa in FIG. It is a longitudinal cross-sectional view of the knee support tool of Embodiment 3 of this invention. It is the longitudinal cross-sectional view cut | disconnected virtually by the vertical surface of VIIIb-VIIIb in FIG. It is a longitudinal cross-sectional view of the knee support tool of Embodiment 3 of this invention. It is the longitudinal cross-sectional view virtually cut | disconnected by the vertical surface extended in the left-right direction in the center part in the front-back direction of a knee support. It is a top view of the knee support of Embodiment 3 of the present invention.

Explanation of symbols

20A ascending inclined surface 20B descending inclined surface 25,125 apex ridge portion 30 side inclined surface 35A recumbent upper leg corresponding side edge 35B recumbent lower leg corresponding side edge 50 belt (binding material)
215a Knee recess for closed leg (knee support)
215b Knee recess for open leg (knee support)
220Aa ascending inclined surface 220Ba descending inclined surface 220Ab sub rising inclined surface 220Bb sub descending inclined surface 225 ridge portion 225a apex ridge portion 225b oblique ridge portion 235A lateral heel upper leg corresponding side edge 235B horizontal heel lower leg corresponding side edge 250 belt ( Binder)
320Aa ascending inclined surface 320Ba descending inclined surface 320Ab sub rising inclined surface 320Bb sub descending inclined surface 325 ridge (knee corresponding portion)
325a Top ridge (knee support)
325b Oblique ridge (knee support)
335A Recumbent crus corresponding side edge 335B Recumbent crus corresponding side edge U Upper leg L Lower leg K Knee B Lumbar H 踵

Claims (9)

A knee support device that is positioned below the knee of a user in the supine state and supports the knee,
An ascending inclined surface substantially corresponding to at least a part of the upper thigh of the user and gradually going upward as it goes from the waist side to the knee side;
A knee support that has a downwardly inclined surface that substantially corresponds to at least a part of the lower leg of the user and gradually decreases downward from the knee side toward the heel side. A knee support device that is positioned below the knee of a user in the supine state and supports the knee,
Of the rising inclined surface gradually going upward as it goes from the user's waist side to the knee side, and the falling inclined surface gradually going downward as it goes from the user's knee side to the heel side Having at least one,
Supporting at least one of the user's upper thigh, knee and lower thigh from below,
Maintaining the user's heel at approximately the same height as the user's waist, while maintaining the user's knees higher than the user's waist and heel,
Knee support. The knee support according to claim 1 or 2, further comprising:
A knee support having a side inclined surface that is formed on at least one of the left and right end portions and gradually decreases downward from the central portion side in the left-right direction toward the end portion. The knee support according to claim 1 or 2,
A plurality of knee corresponding portions corresponding to the knees of the user are provided on at least one side of the left and right with respect to the center in the left-right direction,
Among the plurality of knee-corresponding portions, the one on the left and right end portions is formed at a lower position than the one on the central side in the left-right direction,
Knee support. The knee support according to claim 4,
The plurality of knee corresponding portions extend in the length direction of the leg portion of the user, and are concave portions that are convex in a direction having a lower component.
Knee support. The knee support according to claim 1 or 2,
On at least one side of the left and right with respect to the center in the left and right direction, along the left and right direction, a knee corresponding portion corresponding to the knee of the user is continuously formed,
Of the continuously formed knee-corresponding portions, at least the left and right end side portions are inclined from the horizontal so as to gradually decrease toward the left and right end portions,
Knee support. The knee support according to any one of claims 1 to 6,
Of at least one of the left and right side edges,
The portion corresponding to the rising inclined surface gradually goes outward along the direction from the portion corresponding to the user's lower back side in the rising inclined surface to the portion corresponding to the knee side,
Knee support. The knee support according to any one of claims 1 to 6,
Of at least one of the left and right side edges,
The portion corresponding to the rising inclined surface gradually goes outward along the direction from the portion corresponding to the user's lower back side in the rising inclined surface to the portion corresponding to the knee side,
The portion corresponding to the descending slope is gradually inward along the direction from the portion corresponding to the user's knee in the descending slope to the portion corresponding to the heel side,
Knee support. The knee support according to any one of claims 1 to 8, further comprising:
A pair of string-like or belt-like binders that extend in opposite directions and are connected to each other around an article that forms a placement surface on which the knee support is placed or an article group that includes the article. Having
Knee support.

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