JP2018029889A - Mattress slip stopping tool, and bed device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mattress slip stopping tool and a bed device that can reliably regulate displacement in a horizontal direction of a mattress with respect to a bed.SOLUTION: A mattress slip stopping tool 15 regulates displacement of a mattress on a bed 11, and comprises a long regulating part 51 that regulates displacement of the mattress in a long direction of the bed 11, and a short regulating part 52 that regulates displacement of the mattress in a short direction of the bed 11. A relative position between the long regulating part 51 and the short regulating part 52 is fixed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a mattress slip stopper and a bed apparatus.

  2. Description of the Related Art Conventionally, as a mattress slip stopper, a mattress slip stopper that regulates horizontal displacement of a mattress on a bed is known, for example, as shown in Patent Document 1 below.

JP 2014-223183 A

  However, in the conventional mattress displacement prevention device, only the displacement of the mattress in the short direction with respect to the bed is restricted. There was a risk.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a mattress slip stopper and a bed apparatus that can reliably regulate the horizontal displacement of the mattress with respect to the bed.

In order to solve the above problems, the present invention proposes the following means.
(1) A mattress slip stopper according to the present invention is a mattress slip stopper that regulates displacement of a mattress on a bed, and a longitudinal regulation portion that regulates displacement of the mattress in the longitudinal direction of the bed, A short-side restricting portion for restricting the displacement of the mattress in the short-side direction of the bed, and a relative position between the long-side restricting portion and the short-side restricting portion is fixed.

According to the present invention, since the relative position between the long restricting portion and the short restricting portion is fixed, the external force from the mattress along one of the long direction and the short direction is applied to the long restricting portion and the short restricting portion. It can be received not only by any one of the hand regulating portions but also by the other. For this reason, even when the external force transmitted from the mattress is large, the external force can be reliably received by the mattress slip stopper. Thereby, the horizontal displacement of the mattress with respect to the bed can be reliably controlled.
Further, the relative position between the long restriction part and the short restriction part is fixed. For this reason, for example, by attaching this mattress slip stopper to the corner of the mattress placement portion in the bed, the one mattress slip stopper can change the displacement in the longitudinal direction and the short direction of the bed with respect to the bed. It can be effectively regulated. Thereby, the number of parts can be reduced.

  (2) In the mattress slip stopper according to (1) above, the longitudinal restriction portion and the short side restriction portion may be integrally formed.

  In this case, since the long restriction portion and the short restriction portion are integrally formed, there is no need to provide a member for connecting the long restriction portion and the short restriction portion to each other, and the mattress misalignment stopper can be strengthened with a simple configuration. Can be formed.

  (3) The mattress slip stopper according to the above (1) or (2), wherein the longitudinal restriction portion is provided with a first attachment portion that is attached to the bed, and the short width restriction portion is provided on the bed. A second attachment portion to be attached may be provided.

  In this case, since both the long restricting portion and the short restricting portion are attached to the bed by the first attachment portion and the second attachment portion, the mattress slip stopper is firmly attached to the bed as compared with the configuration in which only one is attached to the bed. Can be installed on.

  (4) The bed apparatus according to the present invention includes the bed and the mattress slip prevention device according to any one of (1) to (3) above.

  In this case, the above-described effects can be achieved in the bed apparatus.

  (5) The bed apparatus according to (4) above, wherein the longitudinal restriction portion is provided with a first attachment portion attached to the bed, and the short restriction portion is attached to the bed. The first fitting portion into which the first attachment portion is fitted and the second fitting portion into which the second attachment portion is fitted may be provided on the bed.

In this case, since both the long restricting portion and the short restricting portion are attached to the bed by the first attaching portion and the second attaching portion, the mattress shift stopper is used as a bed as compared with the configuration in which only one is attached to the bed. Can be attached firmly.
In addition, since the first fitting portion and the second fitting portion, which are fitted to the first attachment portion and the second attachment portion, are provided in the bed apparatus, the mattress slip stopper is attached to the bed apparatus. Can be easily performed.

  (6) The bed apparatus according to (5), wherein the fitting direction between the first attachment portion and the first fitted portion, and between the second attachment portion and the second fitted portion. The fitting direction may be different from each other.

  In this case, the direction in which the first attachment portion is fitted to the first fitted portion and the direction in which the second attachment portion is fitted to the second fitted portion are different from each other. For this reason, the direction in which the first attachment portion is removed from the first fitted portion and the direction in which the second attachment portion is removed from the second fitted portion are different from each other. Therefore, even if an external force is unexpectedly applied to the mattress slip stopper, the fitting between the first attachment portion and the first fitted portion and the fitting between the second attachment portion and the second fitted portion are not performed. Simultaneous release can be suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, the displacement of the horizontal direction of the mattress with respect to a bed can be controlled reliably.

It is a perspective view of the bed apparatus concerning one embodiment of the present invention. It is a side view of the bed apparatus shown in FIG. It is a top view of the bed apparatus shown in FIG. It is a bottom view of the bed apparatus shown in FIG. It is a disassembled perspective view of the bed apparatus shown in FIG. 1, and is a view showing a state where a bottom is removed. It is a perspective view which shows a leg raising state in the bed apparatus shown in FIG. It is a side view of the bed apparatus shown in FIG. It is an expansion perspective view of the principal part in the bed apparatus shown in FIG. It is an enlarged view of the mattress slip stopper of the bed apparatus shown in FIG.

  A mattress slip stopper 15 and a bed apparatus 10 according to an embodiment of the present invention will be described below with reference to FIGS. The bed apparatus 10 can be used, for example, in a medical environment (including a care environment) or a general home. 1 to 9, an arrow H indicates a direction that becomes the head side H when the person (user) sleeps, and an arrow F indicates a direction that becomes the foot side F when the person sleeps. In the following description, the horizontal direction orthogonal to the front-rear direction, which is the direction of arrows H and F, may be referred to as the left-right direction. The front-rear direction and the left-right direction are both directions along the horizontal direction.

As shown in FIGS. 1 to 9, the bed apparatus 10 includes a bed 11, a support frame 12, a board 13, and a drive mechanism 14. The bed apparatus 10 is a so-called electric bed that uses electric power as a power source.
The bed 11 is longer in the front-rear direction than in the left-right direction when viewed in plan. The longitudinal direction of the bed 11 is the front-rear direction, and the short direction of the bed 11 is the left-right direction. A mattress (not shown) is disposed on the bed 11. A user lies on the bed 11 through the mattress.

The bed 11 includes a back bottom 21, a waist bottom 22, and a leg bottom 23. These back bottom 21, waist bottom 22 and leg bottom 23 are arranged in this order from the head side H to the foot side F. The back bottom 21 supports the back of the user. The waist bottom 22 supports the user's waist. The leg bottom 23 supports a user's leg.
The leg bottom 23 includes a knee bottom 24 and a foot bottom 25. The knee bottom 24 and the foot bottom 25 are arranged in this order from the head side H to the foot side F. The knee bottom 24 supports the waist from the user's knee. The foot bottom 25 supports the foot tip from the user's knee.

The support frame 12 supports the bed 11. The support frame 12 receives the loads of the bed 11 and the users on the bed 11. As shown in FIG. 5, the support frame 12 includes a main frame 31 and a grounding portion 32.
The main frame 31 supports the bed 11. The main frame 31 has a rectangular shape in plan view. The main frame 31 includes an outer frame portion 33 and an inner frame portion 34.

The outer frame portion 33 forms the outer peripheral edge portion of the main frame 31 and is disposed on the outer peripheral edge portion of the support frame 12. The outer frame portion 33 is formed in a C-shape that opens toward the head side H in plan view. The outer frame portion 33 includes a first frame member 35 and a second frame member 36.
The first frame member 35 extends in the left-right direction. The first frame member 35 is disposed at the end on the foot side F of the support frame 12.

  The second frame member 36 extends in the front-rear direction. A pair of second frame members 36 are provided with a gap in the left-right direction. The second frame member 36 extends from the left and right ends of the first frame member 35 toward the head side H along the front-rear direction. The second frame member 36 is fixed to the first frame member 35 so as not to move. The first frame member 35 and the second frame member 36 are connected to each other to form a corner portion of the outer frame portion 33. The second frame member 36 is welded (fixed) to the first frame member 35.

  A curtain plate 37 is attached to the outer frame portion 33. The curtain 37 covers the outer frame 33 from the side. The curtain plate 37 includes a first curtain plate 38, a second curtain plate 39, and a square curtain plate 40. The first curtain plate 38 covers the first frame member 35 from the side. The second curtain plate 39 covers the second frame member 36 from the side. The corner curtain plate 40 covers the corner portion.

  The inner frame portion 34 is disposed inside the outer frame portion 33 in plan view. The inner frame portion 34 includes a horizontal member 41 and a vertical member 42. The horizontal member 41 extends in the left-right direction. The horizontal member 41 connects the pair of left and right second frame members 36 in the left-right direction. A pair of front and rear members 41 are arranged. The horizontal member 41 is fixed to the second frame member 36 so as not to move. The horizontal member 41 is welded (fixed) to the second frame member 36.

The vertical member 42 extends in the front-rear direction. The vertical member 42 connects the pair of front and rear horizontal members 41 in the front-rear direction. A pair of vertical members 42 are arranged in the left-right direction. The end portion on the head side H of the vertical member 42 is disposed at the same position in the front-rear direction as the end portion on the head side H of the second frame member 36. The vertical member 42 is fixed to the horizontal member 41 so as not to move. The vertical member 42 is welded (fixed) to the horizontal member 41.
The grounding unit 32 is grounded on the ground plane. A pair of grounding portions 32 are disposed in the left-right direction, and a pair of left and right grounding portions 32 are disposed in the front-rear direction. A total of four grounding portions 32 are provided. The grounding portion 32 is connected to the vertical member 42.

  As shown in FIGS. 6 and 7, the support base 12 supports a part (movable bottom) of the bed 11 so as to be rotatable around a rotation shaft 26 extending in the left-right direction. The bed apparatus 10 is a so-called gatch bed. In the present embodiment, the waist bottom 22 is fixed to the support base 12, and the back bottom 21 and the leg bottom 23 are rotatably connected to the waist bottom 22.

The rotation shaft 26 includes a first rotation shaft 26 a that connects the back bottom 21 and the waist bottom 22, and a second rotation shaft 26 b that connects the leg bottom 23 and the waist bottom 22.
Note that the knee bottom 24 and the foot bottom 25 are connected so as to be rotatable around a bending shaft 27 extending in the left-right direction. Therefore, when the leg bottom 23 rotates around the second rotation shaft 26b and the bed apparatus 10 enters the leg-raised state, the leg bottom 23 bends so that the bending shaft 27 protrudes.

  As shown in FIGS. 6 to 8, a foot stay 43 is rotatably connected to the leg bottom 23. The foot stay 43 holds the leg bottom 23 in a raised state. In the leg bottom 23 in the foot-up state, the foot bottom 25 extends parallel to the horizontal direction. The foot stay 43 is formed in a long shape extending in the front-rear direction.

  The first end 43a and the second end 43b of the foot stay 43 are rotatably fixed to the foot bottom 25 and the main frame 31, respectively. The first end 43a of the foot stay 43 is fixed to the foot bottom 25 so that it cannot be detached. The second end 43b of the foot stay 43 is detachably fixed to the main frame 31. When the leg bottom 23 is raised, the foot stay 43 extends obliquely downward on the head side H from the foot bottom 25.

  As shown in FIG. 1 to FIG. 9, the board 13 is disposed at an end portion of the support frame 12 in the front-rear direction. The board 13 is formed in a plate shape whose front and back faces in the front-rear direction. The board 13 includes a head board 13 a located on the head side H of the support frame 12. The head board 13 a is fixed to the end portion on the head side H of the vertical member 42.

  As shown in FIGS. 4 and 5, the drive mechanism 14 is attached to the support base 12. A plurality of drive mechanisms 14 are provided. The plurality of drive mechanisms 14 are disposed below the bed 11. The drive mechanism 14 moves at least a part of the bed 11 and the support frame 12. The drive mechanism 14 is a linear actuator that extends and contracts in the front-rear direction.

The drive mechanism 14 includes a first drive mechanism 14 a that rotates the back bottom 21 and a second drive mechanism 14 b that rotates the leg bottom 23. Both ends of the first drive mechanism 14a in the front-rear direction are attached to the main frame 31 and the back link 44, respectively. The back upper link 44 supports the back bottom 21 from below. When the first drive mechanism 14a is operated, the back upper link 44 is rotated and the back bottom 21 is in a back-up state.
Both ends of the second drive mechanism 14b in the front-rear direction are attached to the main frame 31 and the above-knee link 45, respectively. The above-knee link 45 supports the leg bottom 23 from below. When the second drive mechanism 14b is operated, the above-knee link 45 is rotated and the leg bottom 23 is in a leg-raised state.

In the present embodiment, as shown in FIG. 1, the bed 11 is provided with a mattress misalignment stop 15 that regulates the horizontal displacement of a mattress (not shown) placed on the bed 11. Hereinafter, the head side H along the front-rear direction may be referred to as the front, and the foot side F may be referred to as the rear.
The mattress slip stopper 15 is attached to each corner located at the rear end of the bed 11. The mattress misalignment stop 15 extends along the left-right direction, and extends along the front-rear direction in the horizontal direction, and a longitudinal restriction portion 51 that restricts the displacement of the mattress in the front-rear direction. And a short-side restricting portion 52 that restricts the displacement of.

As shown in FIG. 9, the long side restricting part 51 and the short side restricting part 52 are connected to each other and have an L shape in a top view. That is, the relative position between the long restriction part 51 and the short restriction part 52 is fixed. In the example shown in the drawing, the size of the longitudinal regulating portion 51 along the left-right direction is larger than the size of the short-side regulating portion 52 along the front-rear direction.
Further, the long restriction portion 51 and the short restriction portion 52 are integrally formed of a synthetic resin material. A connecting portion 53 between the longitudinal regulating portion 51 and the short-side regulating portion 52 is formed in a curved shape protruding toward the outside of the bed apparatus 10. In addition, the longitudinal regulation part 51 and the short regulation part 52 may be integrally formed with a metal material or other materials.

  The longitudinal restricting portion 51 extends along the left-right direction, extends along the up-down direction, the first side wall portion 51a whose front and back faces in the front-rear direction, and the first side wall portion 51a extending forward from the lower end edge of the first side wall portion 51a. 1 bottom wall part 51b. The first side wall 51a gradually extends forward as it goes upward. The rear end portion of the first bottom wall portion 51b is formed in a curved shape that protrudes rearward.

In the first bottom wall portion 51b, a first attachment piece 51c extending forward is formed at the outer end portion on the side opposite to the connection portion 53 side in the left-right direction. Hereinafter, in the left-right direction, the connection portion 53 side is referred to as an outer side, and the first attachment piece 51c side is referred to as an inner side.
The first attachment piece 51c gradually extends downward as it goes forward.

  The longitudinal restricting portion 51 is provided with a first attachment portion 51d that is fitted to a first fitted portion 11a provided on the bed 11 so as to be integrally formed. The first attachment portion 51d extends along the left-right direction, has a C-shape when viewed from the left-right direction, and is formed in a concave shape that opens toward the rear. The upper end part of the 1st attaching part 51d and the front-end edge of the 1st attaching piece 51c are connected.

The short-side restricting portion 52 extends along the front-rear direction, extends along the up-down direction, and has a second side wall portion 52a whose front and back faces in the left-right direction, and an inner side in the left-right direction from the lower edge of the second side wall portion 52a And a second bottom wall portion 52b extending toward the bottom.
The second side wall portion 52a gradually extends inward in the left-right direction as it goes upward. The outer end of the second bottom wall 52b in the left-right direction is formed in a curved surface that protrudes outward in the left-right direction.

The short-side restricting portion 52 is provided with a second attachment portion 52d that is fitted to a second fitted portion 11b provided on the bed 11 so as to be integrally formed. The second attachment portion 52d is formed in a convex shape that protrudes downward from the lower surface of the second bottom wall portion 52b and extends in the front-rear direction. A fitting portion 52e that protrudes inward in the left-right direction is formed at the lower end of the second attachment portion 52d.
The fitting portion 52e is disposed over a portion excluding both end portions in the front-rear direction of the second attachment portion 52d. The second attachment portion 52d is disposed at the inner end in the left-right direction of the second bottom wall portion 52b. In addition, the second attachment portion 52d is disposed on the inner side of the outer peripheral edge of the second bottom wall portion 52b in a top view.
The connection part 53 includes a connection wall part 53a that connects the first side wall part 51a and the second side wall part 52a to each other, a connection bottom wall part 53b that connects the first bottom wall part 51b and the second bottom wall part 52b to each other, It has. Of the connection wall 53a and the connection bottom wall 53b, a portion located outside the bed apparatus 10 is formed in a curved surface shape protruding toward the outside of the bed apparatus 10. The relative position between the long restriction part 51 and the short restriction part 52 is fixed by the connection wall part 53a and the connection bottom wall part 53b.

Here, the leg bottom 25 of the bed 11 is formed with a plurality of vent holes 11c penetrating the leg bottom 25 in the vertical direction along the horizontal direction. The first fitted portion 11a is formed on the inner peripheral surface of the vent hole 11c. In the illustrated example, the first fitted portion 11a is formed at the lower end of the inner peripheral surface of the vent hole 11c. The inner peripheral surface of the vent hole 11c is inclined so as to gradually increase as the inner diameter of the vent hole 11c increases from below to above. The 1st to-be-fitted part 11a is formed in the convex shape which protrudes toward the front, and is extended along the left-right direction.
The vertical size of the first fitted portion 11a is smaller than the opening width in the vertical direction of the first attachment portion 51d.

The second fitted portion 11 b is formed on a bottom edge 25 b made of synthetic resin, which is separately provided at both ends in the left-right direction of the foot bottom 25 of the bed 11. The 2nd to-be-fitted part 11b is a long hole which is formed in the concave shape opened upwards on the upper surface of the bottom edge 25b, and extends along the front-back direction.
In the present embodiment, the first fitting portion 11a is fitted in the first fitting portion 51d, the second fitting portion 52d is fitted in the second fitting portion 11b, and the first fitting portion The fitting direction between 51d and the first fitted portion 11a is different from the fitting direction between the second attachment portion 52d and the second fitted portion 11b. In addition, it is not restricted to such an aspect, The 1st attaching part 51d may be formed in the concave shape opened toward one direction, and the 2nd attaching part 52d is formed in the convex shape protruded toward one direction. May be.

  In the present embodiment, the back bottom 21, the waist bottom 22, and the leg bottom 23 each include a main body portion that is located at the center in the left-right direction and a bottom edge that is located at an end portion in the left-right direction of the main body portion. ing. The first fitted portion 11a is formed on the body portion 25a of the foot bottom 25 of the leg bottom 23, and the second fitted portion 11b is formed on the bottom edge 25b of the foot bottom 25, respectively.

Next, the procedure for attaching the mattress slip stopper 15 to the bed 11 will be described.
First, as shown in FIG. 9, the mattress slip stopper 15 is disposed above the corner of the rear end of the bed 11. Next, the mattress misalignment stopper 15 is moved downward so that the second attachment portion 52d of the short-side restricting portion 52 is inserted into the second fitted portion 11b.

At this time, the mattress is prevented from slipping in a state in which the longitudinal restriction portion 51 is rotated forward about the connection portion 53 and elastically deformed so that the first attachment portion 51d is inserted into the vent hole 11c. The tool 15 is moved downward.
Then, the second bottom wall portion 52b comes into contact with the bottom edge 25b, and the longitudinal restriction portion 51 is restored and deformed rearward, and the first fitted portion 11a is fitted into the opening of the first mounting portion 51d. .

  As described above, according to the mattress slip stopper 15 according to the present embodiment, the relative position between the long restriction portion 51 and the short restriction portion 52 is fixed. For this reason, the external force from the mattress along one of the front-rear direction and the left-right direction is not received by only one of the long restriction part 51 and the short restriction part 52, but is also received by the other. Even when the external force transmitted from the mattress is large, the external force can be reliably received by the mattress misalignment stopper 15. Thereby, the horizontal displacement of the mattress with respect to the bed 11 can be reliably regulated.

Further, the relative position between the long restriction part 51 and the short restriction part 52 is fixed. Therefore, for example, by attaching the mattress slip stopper 15 to the corner of the mattress placement portion in the bed 11, the mattress slip stopper 15 can be used in both the front and rear directions and the left and right directions of the mattress with respect to the bed 11. Displacement can be regulated effectively, and the number of parts can be reduced.
In addition, the long restriction part 51 and the short restriction part 52 are integrally formed. Therefore, there is no need to provide a member for connecting the long restriction part 51 and the short restriction part 52 to each other, and the mattress misalignment stopper 15 can be firmly formed with a simple configuration.

In addition, since both the long restricting portion 51 and the short restricting portion 52 are attached to the bed 11 by the first attaching portion 51d and the second attaching portion 52d, compared to the configuration in which only one is attached to the bed 11, the mattress displacement prevention The tool 15 can be firmly attached to the bed 11.
Moreover, since the 1st to-be-fitted part 11a and the 2nd to-be-fitted part 11b which each fit the 1st attaching part 51d and the 2nd attaching part 52d are provided in the bed 11, the mattress slip stopper 15 of Attachment to the bed 11 can be performed easily.

  The direction in which the first mounting portion 51d is fitted into the first fitted portion 11a is different from the direction in which the second fitting portion 52d is fitted into the second fitted portion 11b. For this reason, the direction in which the first attachment portion 51d is removed from the first fitted portion 11a and the direction in which the second attachment portion 52d is removed from the second fitted portion 11b are different from each other. Therefore, even if an external force is unexpectedly applied to the mattress slip stopper 15, the engagement between the first mounting portion 51d and the first fitted portion 11a, and the second mounting portion 52d and the second fitted portion 11b. Can be prevented from being simultaneously released.

  Moreover, according to the bed apparatus 10 which concerns on this embodiment, since the mattress slip prevention tool 15 is provided, in the bed apparatus 10, the above-mentioned each effect can be achieved.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, the configuration in which the long-length restricting portion 51 and the short-side restricting portion 52 are integrally formed has been shown, but the present invention is not limited to such an aspect. The long restriction part and the short restriction part may be formed separately, and may be connected by a connecting member that connects them to each other.

  Moreover, in the said embodiment, the 1st attachment part 51d attached to the bed 11 is provided in the length control part 51, and the 2nd attachment part 52d attached to the bed 11 is provided in the short control part 52. However, the present invention is not limited to such a mode. Only one of the first attachment portion and the second attachment portion may be provided.

  Moreover, in the said embodiment, although the 1st attaching part 51d and the 2nd attaching part 52d showed the structure fitted to the 1st to-be-fitted part 11a and the 2nd attaching part 52d, it is restricted to such an aspect. I can't. The first attachment portion and the second attachment portion may be locked to a part of the bed without being fitted to the first fitted portion and the second attachment portion.

Moreover, in the said embodiment, the fitting direction between the 1st attaching part 51d and the 1st to-be-fitted part 11a and the fitting direction between the 2nd attaching part 52d and the 2nd to-be-fitted part 11b are mutually mutually. Although different configurations are shown, the present invention is not limited to such a mode. The same direction may be sufficient as the fitting direction between a 1st attaching part and a 1st to-be-fitted part, and the fitting direction between a 2nd attaching part and a 2nd to-be-fitted part.
In addition, it is possible to appropriately replace the constituent elements in the embodiment with known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

DESCRIPTION OF SYMBOLS 10 Bed apparatus 11 Bed 11a 1st to-be-fitted part 11b 2nd to-be-fitted part 15 Mattress slip prevention tool 51 Long-length control part 51d 1st attaching part 52 Short-side restricting part 52d 2nd attaching part

Claims (6)

A mattress stopper that regulates the displacement of the mattress on the bed,
A longitudinal regulating portion that regulates the displacement of the mattress in the longitudinal direction of the bed;
A short-side restricting portion for restricting displacement of the mattress in the short-side direction of the bed,
A mattress slip stopper having a fixed relative position between the longitudinal restricting portion and the short restricting portion.   The mattress slip stopper according to claim 1, wherein the longitudinal restriction portion and the short side restriction portion are integrally formed. A first attachment portion attached to the bed is provided in the longitudinal restriction portion,
The mattress slip stopper according to claim 1 or 2, wherein a second attachment portion that is attached to the bed is provided in the short-side regulating portion. The bed;
A bed apparatus comprising: the mattress slip stopper according to any one of claims 1 to 3. A first attachment portion attached to the bed is provided in the longitudinal restriction portion,
A second attachment part that is attached to the bed is provided in the short-side restriction part,
The first mating portion into which the first mounting portion is fitted and the second mating portion into which the second mounting portion is fitted are provided on the bed. 4. The bed apparatus according to 4.   The fitting direction between the first mounting portion and the first fitted portion is different from the fitting direction between the second mounting portion and the second fitted portion. The bed apparatus according to claim 5.

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