WO2022191096A1

WO2022191096A1 - Bed

Info

Publication number: WO2022191096A1
Application number: PCT/JP2022/009598
Authority: WO
Inventors: 敬介舟越; 孝樹松本; 晃生下村; 元樹神戸; 英希掛田
Original assignee: パラマウントベッド株式会社
Priority date: 2021-03-12
Filing date: 2022-03-07
Publication date: 2022-09-15
Also published as: KR20230022245A; JP2022139678A; CN116867469A

Abstract

The present invention provides a bed comprising a bottom frame extending in the front–back direction, a plurality of bottoms which are provided on the bottom frame and which are arranged in the front–back direction, and an adjustment member disposed on the bottoms, the bed being characterized in that the adjustment member can be changed to a first position at which the adjustment member projects out forward from the bottom frame or to a second position at which the adjustment member is positioned inside the first position in the front–back direction.

Description

bed

The embodiment of the present invention relates to beds.

A bed whose length can be changed according to the body shape of the user and the space of the room in which it is arranged is known (Patent Document 1).

JP 2020-065634 A

With the bed described in Patent Document 1, the length adjustment work must be performed at the center of the bed in the longitudinal direction and the width direction, so there is a risk that the workability of the length adjustment work will be reduced.

An object of the embodiments of the present invention is to provide a bed whose length can be easily adjusted.

A bed according to an embodiment is a bed comprising a bottom frame extending in the front-rear direction, a plurality of bottoms provided on the bottom frame and arranged in the front-rear direction, and an adjusting member arranged on the bottom, wherein the adjustment The member is characterized in that it can be changed between a first position protruding forward from the bottom frame and a second position positioned inside the first position in the front-rear direction.

According to the embodiment of the present invention, it is possible to provide a bed whose length can be easily adjusted.

1 is a perspective view showing a bed according to a first embodiment of the invention; FIG. It is a perspective view which shows the state which removed the bottom frame and the bottom. FIG. 4 is a plan view showing a first adjustment member arranged on the back bottom; It is the side view which looked at the 1st adjustment member from the side. FIG. 4 is an enlarged perspective view showing a first adjustment member arranged on the back bottom; FIG. 4 is an exploded perspective view showing a state where the first adjustment member is removed from the back bottom; Fig. 6 is a perspective view similar to Fig. 5 showing a state in which the length of the bed is shortened by the first adjustment member; FIG. 8 is a side view similar to FIG. 4 showing the first adjustment member in FIG. 7 viewed from the side; It is a perspective view which shows a 1st adjustment member alone. Fig. 10 is a plan view showing a second adjustment member arranged on the foot bottom; FIG. 11 is a plan view showing a state in which the length of the bed is shortened by the second adjustment member; It is a perspective view which shows a 2nd adjustment member alone. FIG. 11 is a perspective view showing the back bottom side of a bed provided with a third adjusting member according to a second embodiment of the present invention; FIG. 14 is an enlarged perspective view showing a third adjustment member in FIG. 13; FIG. 11 is a cross-sectional view showing a state in which the length is adjusted by the third adjustment member; FIG. 4 is a cross-sectional view showing a state in which the back bottom is removed from the back frame; FIG. 11 is a plan view showing the back bottom side of a bed provided with a fourth adjusting member according to a third embodiment of the present invention; FIG. 11 is a plan view showing the back bottom side of a bed provided with a fifth adjusting member according to a fourth embodiment of the present invention; FIG. 11 is an exploded perspective view showing the back bottom side of a bed provided with a sixth adjusting member according to a fifth embodiment of the present invention; It is a side view which expands and shows the A section in FIG. FIG. 11 is a perspective view showing a state where the sixth adjustment member is attached to the back frame; FIG. 11 is a perspective view showing a state in which the length of the bed is shortened by the sixth adjusting member;

A bed according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 12. FIG.
1 is a perspective view showing a bed according to a first embodiment of the present invention; FIG.
FIG. 2 is a perspective view showing a state in which the bottom frame and bottom are removed. FIG. 2 shows a state in which the height of the base frame is raised from the state in FIG.

A bed 10 shown in FIG. 1 is an electric bed that is used, for example, in nursing homes, hospitals, and private homes, and whose backrest, height, etc. can be electrically operated. A back bottom 26 and leg bottoms 28 of the bed 10 can be raised and lowered. The bed 10 includes a bottom frame 16, a bottom 25, and adjustment members (first adjustment member 30 and second adjustment member 50). In the bed 10 shown in FIG. 1, the oblique upper left side in FIG. 1 is the head side, and the oblique lower right side in FIG. 1 is the leg side. In the present embodiment, the front-rear direction is the direction between the head side and the foot side.

Above the base frame 12, for example, a side frame 14 having a plurality of plate members connected in the front-rear direction, and a bottom frame 16 provided inside the side frame 14 and supporting the bottom 25 are arranged. Two side frames 14 are provided spaced apart in the left-right direction (transverse direction) of the bed 10 .

The side frame 14 has a head-side frame 14a positioned on the front side (head side) in the front-rear direction and a foot-side frame 14b positioned on the rear side (foot side). The head-side frame 14a and the foot-side frame 14b are connected so as to be separable. As a result, the bed 10 can be divided into, for example, a plurality of units and transported into the room in which the bed 10 is arranged. Further, the side frames 14 and the bottom frame 16 are vertically movable with respect to the base frame 12 by a first driving device 101 provided inside the side frames 14 .

A board mounting portion 15a to which a headboard (not shown) is mounted is provided on the front end side of the head-side frame 14a. The board mounting portion 15a is provided so as to be slidable in the front-rear direction with respect to the head-side frame 14a. The board mounting portion 15a is adjusted in the projection dimension from the head-side frame 14a according to the first position and the second position of the first adjusting member 30, which will be described later.

On the other hand, a board attachment portion 15b to which a footboard (not shown) is attached is provided on the rear end side of the foot-side frame 14b. The board attachment portion 15b is provided so as to be slidable in the front-rear direction with respect to the foot-side frame 14b. The board attachment portion 15b is adjusted in the projection dimension from the foot-side frame 14b according to the first position and the second position of the second adjusting member 50, which will be described later.

The bottom frame 16 comprises a back frame 17 supporting the back bottom 26, a waist frame 18 supporting the waist bottom 27, a knee frame 19 supporting knee bottoms 28a constituting leg bottoms 28, and leg bottoms 28. and a foot frame 20 that supports a foot bottom 28b. The back frame 17 , the waist frame 18 , the knee frame 19 , and the foot frame 20 are provided two apart in the lateral direction (transverse direction) of the bed 10 .

The back frame 17 extends in the front-rear direction. The back frame 17 supports a plurality of back bottoms 26 arranged in the front-rear direction from the back side. The back frame 17 can be raised and lowered (flexible) with respect to the waist frame 18 by the operation of the second driving device 103 .

The back frame 17 has a body frame 17a and a fixing portion 17b provided on the body frame 17a and to which the first adjusting member 30 is fixed. The fixed portion 17b protrudes upward from the body frame 17a at a position corresponding to the through hole 25a of the back bottom 26 located on the frontmost side. The fixed portion 17b is made of, for example, a cylindrical body, and serves as a screw seat with an internal thread threaded on the inner surface side. In the present embodiment, one fixing portion 17b is provided on each body frame 17a of each of the left and right back frames 17. As shown in FIG.

The waist frame 18 is located behind the back frame 17 and extends in the front-rear direction. The waist frame 18 supports the waist bottom 27 from the back side. The waist frame 18 is fixed to the side frames 14 . The knee frame 19 is positioned behind the waist frame 18 and extends in the front-rear direction. The knee frame 19 supports a plurality of knee bottoms 28a arranged in the front-rear direction from their back sides. The knee frame 19 is rotatably connected to the waist frame 18 and rotatably connected to the leg frame 20 .

The foot frame 20 is located behind the knee frame 19 and extends in the front-rear direction. The leg frame 20 supports a plurality of leg bottoms 28b arranged in the front-rear direction from the rear side. The leg frame 20 has a body frame 20a, and a first fixing portion 20b and a second fixing portion 20c provided on the body frame 20a to which the second adjusting member 50 is fixed. In this embodiment, the body frame 20a of each of the left and right leg frames 20 is provided with a first fixing portion 20b and a second fixing portion 20c.

The first fixing part 20b and the second fixing part 20c are arranged side by side in the front-rear direction of the body frame 20a, and constitute the fixing part of the present invention. The first fixing portion 20b is positioned on the rear side of the body frame 20a. The second fixing portion 20c is positioned in front of the first fixing portion 20b.

A plurality of bottoms 25 are fixed to the bottom frame 16 and arranged side by side in the front-rear direction on the side frames 14 and the bottom frame 16 . The top surface of the bottom 25 serves as a surface on which a mattress (not shown) is placed, and supports the mattress and the human body on the mattress.

The bottom 25 includes a back bottom 26 positioned on the head side to support the back, a waist bottom 27 positioned behind the back bottom 26 to support the waist, and a waist bottom 27 positioned behind the waist bottom 27 to support the legs. and a supporting leg bottom 28 . The leg bottom 28 has a knee bottom 28a that supports the knee and a leg bottom 28b that is located behind the knee bottom 28a and supports the leg. The back bottom 26, waist bottom 27, and leg bottom 28 have the same shape and configuration.

Each bottom 25 is formed with a plurality of through-holes 25a penetrating in the vertical direction and arranged side by side in the horizontal direction. This through-hole 25a serves as an air vent between the mattress placed on the bottom 25. As shown in FIG. As a result, ventilation on the lower surface side of the mattress is improved, so that the mattress can be prevented from getting stuffy.

Inside the side frame 14, there are a first driving device 101 for raising and lowering the side frame 14 and the bottom frame 16, a second driving device 103 for raising and lowering the bottom 25, the first driving device 101 and the second driving device 103. A control unit 105 for controlling is provided. The first drive device 101 and the second drive device 103 are, for example, electric cylinders. The first driving device 101 and the second driving device 103 are not limited to electric cylinders, and may be other actuators such as motors.

Next, the first adjustment member 30 capable of adjusting the length of the bed 10 in the front-rear direction (longitudinal direction) will be described.
FIG. 3 is a plan view showing the first adjustment member arranged on the back bottom.
FIG. 4 is a side view of the first adjustment member viewed from the side.
FIG. 5 is an enlarged perspective view showing the first adjustment member arranged on the back bottom.
FIG. 6 is an exploded perspective view showing a state where the first adjustment member is removed from the back bottom.
7 is a perspective view similar to FIG. 5 showing a state in which the length of the bed is shortened by the first adjustment member; FIG.
8 is a side view similar to FIG. 4 showing the first adjustment member in FIG. 7 viewed from the side.
FIG. 9 is a perspective view showing the first adjusting member alone.

The first adjusting member 30 is arranged on the back bottom 26 located on the most front side (head side) among the plurality of back bottoms 26 . The first adjustment member 30 is positioned above the back bottom 26 and constitutes the adjustment member of the present invention. The upper surface of the first adjustment member 30 serves as a surface for placing a mattress (not shown), and supports the head side of the mattress from below.

The first adjustment member 30 can be changed between a first position protruding forward from the back frame 17 of the bottom frame 16 and a second position positioned inside the first position in the front-rear direction. That is, the first adjusting member 30 can change the length of the bed 10 in the front-rear direction (longitudinal direction) by selecting the first position and the second position. In other words, the first adjustment member 30 can change between a first position in which the longitudinal direction is long and a second position in which the longitudinal direction is short.

At the second position, the front end of the first adjustment member 30 may be at the same position as the back frame 17 or may be positioned behind the back frame 17 . 1 and 3 to 6 show the first adjustment member 30 in the first position. On the other hand, FIGS. 7 and 8 show a state in which the first adjusting member 30 is at the second position.

The length of the first adjustment member 30 in the left-right direction corresponds to the length of the bottom 25 in the left-right direction and the length of the mattress in the left-right direction. The first adjusting member 30 has a body portion 32 facing the upper surface of the back bottom 26, and an insertion hole 34 formed in the body portion 32 and through which a fixing member 40 for fixing the first adjusting member 30 to the fixing portion 17b is inserted. , have The body portion 32 is a thin plate made of, for example, a metal material or a resin material.

The insertion hole 34 penetrates from the upper surface 32a of the main body portion 32 toward the lower surface 32b. The shaft portion 40 b of the fixing member 40 is inserted through the insertion hole 34 . The fixing member 40 is, for example, a screw having a head portion 40a and a shaft portion 40b having an external thread. Note that the fixing member 40 may be a pin or the like. In this embodiment, two insertion holes 34 are formed in the body portion 32 so as to be spaced apart in the left-right direction. Each insertion hole 34 is formed at a position corresponding to the fixing portion 17b. The first adjusting member 30 is attached to the upper surface of the back bottom 26 by, for example, inserting the shaft portion 40b of the fixing member 40 into the insertion hole 34 and screwing the shaft portion 40b into the fixing portion 17b.

As shown in FIG. 3, each insertion hole 34 is positioned on the same straight line (chain line O1-O1) in the left-right direction. Each insertion hole 34 is formed at a position where the dimension L1 to the end of the first adjustment member 30 in the left-right direction is equal. As a result, the first adjustment member 30 can be attached to the same fixing portion 17b even when it is rotated 180 degrees from the first position to the second position.

In addition, the insertion hole 34 is formed at a position shifted from the center of the first adjusting member 30 in the front-rear direction to one end. As shown in FIGS. 3 and 4, when the first adjusting member 30 is in the first position, the dimension L2 from the insertion hole 34 to the one end 30a (front end) of the first adjusting member 30 in the front-rear direction is It is larger than the dimension L3 to the other end 30b (rear end) of the 1-adjustment member 30 in the front-rear direction (L2>L3). When the first adjustment member 30 is in the first position, one end 30a is the front end and the other end 30b is the rear end. On the other hand, when the first adjusting member 30 is at the second position, one end 30a is the rear end and the other end 30b is the front end.

Further, when the first adjusting member 30 is in the first position, the dimension L2 from the insertion hole 34 to the one end 30a of the first adjusting member 30 is longer than the dimension L4 from the insertion hole 34 to the front end of the back frame 17. It is large (L2>L4). Thereby, when the first adjustment member 30 is in the first position, one end 30a (front end) of the first adjustment member 30 can be projected from the front end 17a1 of the back frame 17 by the dimension L5.

In this case, the front end 26a of the back bottom 26 is located at substantially the same position as the front end 17a1 of the back frame 17 in the vertical direction. Therefore, when the first adjustment member 30 is in the first position, one end 30a (front end) of the first adjustment member 30 can be positioned forward of the front end 26a of the back bottom 26. As shown in FIG. In other words, when the first adjustment member 30 is in the first position, the one end 30a (front end) of the first adjustment member 30 can be projected further forward than the front end 26a of the back bottom 26 .

The first adjustment member 30 can be attached to the fixing portion 17b in two modes, a first position as shown in FIGS. 3 to 5 and a second position as shown in FIGS. In FIGS. 7 and 8, the two-dot chain line indicates the case where the first adjustment member 30 is in the first position. The first adjusting member 30 is reversed front to back between the first position and the second position. That is, as shown in FIGS. 7 and 8, when the first adjusting member 30 is at the second position, one end 30a in the front-rear direction is the rear end, and the other end 30b in the front-rear direction is the front end.

As shown in FIG. 8, when the first adjustment member 30 is in the second position, the other end 30b (front end) of the first adjustment member 30 can protrude from the front end 17a1 of the back frame 17 by a dimension L6. . As described above, the dimension L2 from the insertion hole 34 to the one end 30a of the first adjusting member 30 is larger than the dimension L3 from the insertion hole 34 to the other end 30b. Therefore, the dimension L6 when the first adjustment member 30 is in the second position is smaller than the dimension L5 when the first adjustment member 30 is in the first position (L6<L5).

As a result, when the first adjustment member 30 is in the second position, the length of the bed 10 in the longitudinal direction is shortened by the dimension L2-L3 compared to when the first adjustment member 30 is in the first position. be able to. In this way, the first adjustment member 30 can easily be adjusted to the bed 10 by changing the mode of fixing to the fixing portion 17b provided on the back frame 17 (the mode of the first position and the mode of the second position). The longitudinal length dimension can be changed.

When the first adjusting member 30 is at the second position, the other end 30b (front end) of the first adjusting member 30 may be positioned behind the front end 26a of the back bottom 26. In such a case, since the mattress can be supported by the back bottom 26, there is no need to fix the first adjusting member 30 to the fixing portion 17b. However, in such a case, a storage place for the first adjustment member 30 is required, or the first adjustment member 30 may be lost. The first adjusting member 30 according to the present embodiment can be fixed to the fixing part 17b in both the first position mode and the second position mode. Loss of the member 30 can be suppressed.

The first adjustment member 30 has a vent hole 36 that penetrates the body portion 32 in the vertical direction. The ventilation hole 36 is formed at a position corresponding to the through hole 25a of the bottom 25 (back bottom 26). Further, as shown in FIGS. 3, 5 to 7, and 9, the insertion hole 34 and the ventilation hole 36 are formed side by side in the left-right direction (transverse direction).

Thereby, the through hole 25a of the back bottom 26 can be positioned below the ventilation hole 36 regardless of whether the first adjusting member 30 is at the first position or at the second position. Therefore, good ventilation to the mattress can be maintained whether the first adjustment member 30 is in the first position or in the second position.

The first adjustment member 30 has a projecting portion 38 projecting upward around the body portion 32 . That is, the projecting portion 38 surrounds the outer circumference of the body portion 32 . The protruding portion 38 suppresses bending or deformation of the body portion 32 . In addition, the upper end of the protruding portion 38 has an upwardly convex curved surface, which prevents the mattress from being scratched.

As shown in FIGS. 4 and 8, for example, the protruding portion 38 has a height that hides more than the lower half of the head portion 40a of the fixing member 40. As shown in FIG. As a result, it is possible to prevent the head 40a of the fixing member 40 from coming into contact with the mattress and shortening the life of the mattress. Note that the protruding portion 38 may have a height that hides the entire head portion 40 a of the fixing member 40 .

Next, the second adjustment member 50 provided on the foot frame 20 side will be described.
FIG. 10 is a plan view showing the second adjustment member arranged on the leg bottom.
FIG. 11 is a plan view showing a state in which the length of the bed is shortened by the second adjusting member.
FIG. 12 is a perspective view showing the second adjusting member alone.

The second adjustment member 50 is arranged on the leg bottom 28b located on the rearmost side (foot side) among the plurality of leg bottoms 28b. This second adjustment member 50 is positioned above the leg bottom 28b and constitutes the adjustment member of the present invention. The upper surface of the second adjustment member 50 serves as a surface for placing a mattress (not shown), and supports the foot side of the mattress from below.

The second adjustment member 50 can be changed between a first position protruding rearward from the foot frame 20 of the bottom frame 16 and a second position positioned inside the first position in the front-rear direction. . That is, the second adjustment member 50 can change the length of the bed 10 in the front-rear direction (longitudinal direction) by selecting the first position and the second position. In other words, the second adjustment member 50 can change between a first position in which the longitudinal direction is long and a second position in which the longitudinal direction is short. FIG. 10 shows the second adjustment member 50 in the first position. On the other hand, FIG. 11 shows a state in which the second adjusting member 50 is in the second position, and a state in which the second adjusting member 50 is in the first position is indicated by a chain double-dashed line.

The second adjusting member 50 is formed, for example, by bending and fixing (welding) a pipe made of metal material or resin material. As shown in FIG. 12 , the second adjustment member 50 includes a body portion 52 extending in the front-rear direction and the left-right direction, and one end (front end) of the body portion 52 in the front-rear direction toward the longitudinal direction (the front-rear direction) of the bed 10 . It has an extending portion 54 that extends, and a standing portion 56 that extends upward from the other end (rear end) of the body portion 52 in the front-rear direction.

The length of the body portion 52 in the left-right direction corresponds to the length of the bottom 25 in the left-right direction and the length of the mattress in the left-right direction. Two extending portions 54 are provided spaced apart in the left-right direction. Each extension 54 is provided at a position corresponding to the leg frame 20 .

The extending portion 54 has a hook portion 54a on the tip side. The extending portion 54 is bent downward in the form of a crank by a hook portion 54a. The second adjustment member 50 is attached above the leg bottom 28b by hooking the hook portion 54a to the first fixing portion 20b or the second fixing portion 20c of the foot frame 20. As shown in FIG.

As shown in FIG. 10, the second adjusting member 50 can be brought to the first position by hooking the hooking portion 54a on the first fixing portion 20b. When the second adjustment member 50 is at the first position, the standing portion 56 protrudes rearward from the rear end 20a1 of the foot frame 20 and the rear end of the foot bottom 28b. On the other hand, as shown in FIG. 11, the second adjusting member 50 can be brought to the second position by hooking the hooking portion 54a on the second fixing portion 20c. When the second adjustment member 50 is in the second position, the standing portion 56 is positioned substantially at the same position as the rear end of the leg bottom 28b. Therefore, the second adjustment member 50 protrudes from the rear end 20a1 of the foot frame 20 less when it is in the second position than in the first position.

The standing portion 56 protrudes upward from the body portion 52 . As a result, the second adjustment member 50 prevents the mattress from shifting rearward due to the erected portion 56 . Whether the second adjustment member 50 is at the first position or at the second position, for example, the standing portion 56 can prevent the mattress from shifting rearward when the bottom 25 is raised.

In this way, the second adjustment member 50 changes the manner of being fixed to the first fixing portion 20b and the second fixing portion 20c provided on the foot frame 20 (first position mode and second position mode). , the longitudinal length of the bed 10 can be easily changed.

Next, a bed 10 having a third adjusting member 65 according to a second embodiment of the invention will be described with reference to FIGS. 13 to 16. FIG. In the second embodiment, the bottom 25 (back bottom 26) is movable relative to the bottom frame 16 (back frame 17). In addition, in 2nd Embodiment, the same code|symbol is attached|subjected to the component same as 1st Embodiment mentioned above, and the description is abbreviate|omitted.
FIG. 13 is a perspective view showing the back bottom side of the bed provided with the third adjusting member according to the second embodiment of the present invention;
14 is an enlarged perspective view of the third adjustment member in FIG. 13. FIG.
FIG. 15 is a cross-sectional view showing a state in which the length is adjusted by the third adjusting member.
FIG. 16 is a sectional view showing a state in which the back bottom is removed from the back frame.

The back frame 17 has a body frame 17a and a fixing portion 60. The fixing portion 60 is positioned on the tip side of the body frame 17a. The fixing portion 60 includes a first fitting portion 62a and a second fitting portion 62b penetrating from the upper surface to the lower surface of the body frame 17a, and an insertion hole through which a fixing member 69 for fixing the third adjustment member 65 is inserted. 63 and . Note that the first fitting portion 62a and the second fitting portion 62b may be recesses recessed from the upper surface to the lower surface instead of through holes.

The first fitting portion 62a and the second fitting portion 62b are spaced apart in the front-rear direction. Two of each of the first fitting portion 62a and the second fitting portion 62b are provided, for example, spaced apart in the left-right direction. One first fitting portion 62a and one second fitting portion 62b may be provided, or three or more may be provided.

The first fitting portion 62a positions the third adjustment member 65 at the first position. On the other hand, the second fitting portion 62b positions the third adjustment member 65 at the second position. The insertion hole 63 is formed between each first fitting portion 62a and each second fitting portion 62b located on the left and right. The insertion hole 63 is, for example, an elongated hole extending in the front-rear direction. Note that the insertion holes 63 are not limited to long holes, and a plurality of holes may be formed spaced apart in the front-rear direction.

The third adjusting member 65 is arranged on the back bottom 26 located on the most front side (head side) among the plurality of back bottoms 26 . This third adjustment member 65 is positioned below the back bottom 26 and constitutes the adjustment member of the present invention. The third adjustment member 65 is fixed to the lower surface of the back bottom 26 by welding or the like. The third adjustment member 65 is detachably provided on the upper surface of the back frame 17 .

The third adjustment member 65 can be changed between a first position protruding forward from the back frame 17 of the bottom frame 16 and a second position positioned inside the first position in the front-rear direction. That is, the third adjusting member 65 can change the length of the bed 10 in the front-rear direction (longitudinal direction) by selecting the first position and the second position. In other words, the third adjustment member 65 can change between a first position in which the longitudinal direction is long and a second position in which the longitudinal direction is short. The third adjustment member 65 has a body portion 66 , a rear nut 67 fixed to the top surface of the body portion 66 , and a fitted portion 68 projecting downward from the bottom surface of the body portion 66 .

The body portion 66 is formed by bending a thin plate made of, for example, a metal material or a resin material. The body portion 66 is formed in a concave shape with an open bottom by a contact surface portion 66a that contacts the back frame 17 and vertical surface portions 66b that extend downward from both left and right ends of the contact surface portion 66a.

The upper surface of the contact surface portion 66 a of the body portion 66 is fixed to the lower surface of the back bottom 26 . The vertical surface portion 66 b faces the side surface of the back frame 17 while the third adjustment member 65 is attached to the back frame 17 . That is, the third adjustment member 65 is attached so as to cover the front end side of the back frame 17 .

The back nut 67 is fixed to the upper surface of the contact surface portion 66a by welding or the like. The rear nut 67 is provided at a position corresponding to the insertion hole 63 formed in the back frame 17 . The back nut 67 is positioned inside the through hole 25 a of the back bottom 26 .

The fitted portion 68 is a projection protruding from the lower surface of the contact surface portion 66a. The fitted portion 68 is provided at a position corresponding to the first fitting portion 62a and the second fitting portion 62b. Each fitted portion 68 is inserted into the first fitting portion 62a and the second fitting portion 62b, respectively. As shown by the solid line in FIG. 16, the third adjusting member 65 can be positioned at the first position by inserting the mated portion 68 located on the rear side into the first fitting portion 62a. On the other hand, as shown by the dashed line in FIG. 16, the fitted portion 68 located on the front side is inserted into the first fitting portion 62a, and the fitted portion 68 located on the rear side is inserted into the second fitting portion 62b. By inserting, the third adjustment member 65 can be positioned at the second position.

After being positioned at the first or second position, the third adjustment member 65 is attached to the back frame 17 by screwing the fixing member 69 (screw) into the back nut 67 via the insertion hole 63 . When the third adjusting member 65 is at the first position, the fixing member 69 is positioned on the front end side of the insertion hole 63 . On the other hand, when the third adjusting member 65 is at the second position, the fixing member 69 is positioned on the rear end side of the insertion hole 63 .

In the state shown in FIG. 15 on the upper side of the paper surface, the third adjusting member 65 is in the first position. On the other hand, in the state shown in FIG. 15 on the lower side of the paper surface, the third adjustment member 65 is in the second position. The front end of the third adjustment member 65 protrudes from the front end 17a1 of the back frame 17 when the third adjustment member 65 is in the first position.

On the other hand, when the third adjusting member 65 is at the second position, the front end of the third adjusting member 65 is positioned rearward of the front end 17a1 of the back frame 17. As a result, the front end 26a of the back bottom 26 is shorter by the dimension L7 when the third adjusting member 65 is in the second position than when the third adjusting member 65 is in the first position.

In this way, the third adjustment member 65 is arranged in the back bottom 26 located on the frontmost side (head side) among the plurality of back bottoms 26, thereby moving the back bottom 26 forward and backward (toward the first position). second position). Also, the insertion hole 63 is an elongated hole extending in the front-rear direction. As a result, the third adjusting member 65 can be moved from the first position to the second position simply by loosening the fixing member 69 without removing it from the rear nut 67, for example. Therefore, the length of the bed 10 can be easily adjusted.

The case where the first fitting portion 62a and the second fitting portion 62b are formed as through holes and the fitted portion 68 is formed as a projection has been described as an example. The fitting portion 62b may be a protrusion and the fitted portion 68 may be a through hole.

Also, the first fitting portion 62a, the second fitting portion 62b, and the fitted portion 68 may be provided as necessary. For example, by not providing the first fitting portion 62a, the second fitting portion 62b, and the fitted portion 68, the back bottom 26 can be slid forward and backward with respect to the back frame 17 via the third adjusting member 65. can be moved. In this case, the back bottom 26 can be arranged at an arbitrary position by sliding the position of the fixing member 69 between the front end and the rear end of the insertion hole 63 .

Next, a bed 10 having a fourth adjusting member 70 according to a third embodiment of the invention will be described with reference to FIG. In the third embodiment, the fourth adjustment member 70 is detachable from the bottom 25 (back bottom 26). In addition, in 3rd Embodiment, the same code|symbol is attached|subjected to the component same as 1st Embodiment mentioned above, and the description is abbreviate|omitted.
FIG. 17 is a plan view showing the back bottom side of a bed provided with a fourth adjusting member according to the third embodiment of the present invention; FIG. 17(a) shows the case where the fourth adjusting member is in the first position. FIG. 17(b) shows the case where the fourth adjustment member is in the second position.

The fourth adjustment member 70 is arranged on the back bottom 26 located on the most front side (head side) among the plurality of back bottoms 26 . The fourth adjustment member 70 is positioned above the back bottom 26 and constitutes the adjustment member of the present invention. The fourth adjustment member 70 is detachably provided on the upper surface of the back bottom 26 .

The fourth adjustment member 70 can be changed between a first position protruding forward from the back frame 17 of the bottom frame 16 and a second position positioned inside the first position in the front-rear direction. That is, the fourth adjustment member 70 can change the length of the bed 10 in the front-rear direction (longitudinal direction) by selecting the first position and the second position. In other words, the third adjustment member 70 can change between a first position in which the longitudinal direction is long and a second position in which the longitudinal direction is short. The fourth adjusting member 70 has a body portion 71 and a clamping portion 72 that protrudes downward from the body portion 71 and is clamped by the bottom 25 .

The main body part 71 is formed of a thin plate material made of, for example, a metal material or a resin material, and supports the mattress from below. That is, the upper surface of the body portion 71 serves as a placement surface on which the mattress is placed. The holding portion 72 extends downward from the front-rear direction end portion of the main body portion 71 .

As shown in FIG. 17(a), the fourth adjusting member 70 is fixed to the back bottom 26 by clamping the holding portion 72 between the through hole 25a of the back bottom 26 and the front end 26a. In this state, the front end of the body portion 71 protrudes from the back frame 17 and the front ends 26 a of the back bottom 26 . Thereby, the fourth adjustment member 70 can be set to the first position in which the length of the bed 10 in the front-rear direction is increased.

On the other hand, as shown in FIG. 17(b), when the fourth adjusting member 70 is set to the second position, the holding portion 72 is held between the through hole 25a of the back bottom 26 and the rear end. Thereby, when the fourth adjustment member 70 is in the second position, the length in the longitudinal direction can be made smaller than when it is in the first position. In this example, the fourth adjustment member 70 does not protrude from the back frame 17 and the back bottom 26 when the fourth adjustment member 70 is in the second position.

Thus, the fourth adjustment member 70 can be changed between the first position and the second position by changing the manner in which it is fixed to the bottom 25. Therefore, the length of the bed 10 can be easily adjusted. In addition, since the fourth adjusting member 70 can be fixed to the bottom 25 in both the first position mode and the second position mode, a storage place for the fourth adjusting member 70 can be secured and the fourth adjusting member 70 can be You can prevent it from being lost.

Next, a bed 10 having a fifth adjusting member 82 according to a fourth embodiment of the invention will be described with reference to FIG. In the fourth embodiment, the fifth adjustment member 82 is slidable with respect to the bottom 25 (back bottom 26). In addition, in 4th Embodiment, the same code|symbol is attached|subjected to the component same as 1st Embodiment mentioned above, and the description is abbreviate|omitted.
FIG. 18 is a plan view showing the back bottom side of a bed provided with a fifth adjusting member according to a fourth embodiment of the present invention; FIG. 18(a) shows the case where the fifth adjustment member is in the first position. FIG. 18(b) shows the case where the fifth adjustment member is in the second position.

The pedestal 80 is provided in the through hole 25a of the bottom 25. Two pedestals 80 are provided, for example, spaced apart in the left-right direction of the through hole 25a. The pedestal 80 is provided, for example, on the back bottom 26 located on the most front side (head side) among the plurality of back bottoms 26 . The pedestal 80 is formed with a through hole 80a penetrating in the front-rear direction. Note that the pedestal 80 may be provided on the back frame 17 instead of the through hole 25 a of the bottom 25 .

The fifth adjustment member 82 is provided on the base 80 so as to be slidable in the front-rear direction. This fifth adjusting member 82 is positioned above the back bottom 26 and constitutes the adjusting member of the present invention. The fifth adjustment member 82 is provided in the through hole 80a of the base 80. As shown in FIG.

The fifth adjustment member 82 can be changed between a first position protruding forward from the back frame 17 of the bottom frame 16 and a second position positioned inside the first position in the front-rear direction. That is, the fifth adjustment member 82 can change the length of the bed 10 in the front-rear direction (longitudinal direction) by selecting the first position and the second position. In other words, the fifth adjustment member 82 can change between a first position in which the longitudinal direction is long and a second position in which the longitudinal direction is short. The fifth adjustment member 82 has a shaft portion 83 slidably inserted into the through hole 80 a of the base 80 and a body portion 84 provided at the tip of the shaft portion 83 .

The fifth adjustment member 82 is formed, for example, by bending and fixing (welding) a pipe made of metal material or resin material. The length of the body portion 84 in the left-right direction corresponds to the length of the bottom 25 in the left-right direction and the length of the mattress in the left-right direction. Thereby, the fifth adjustment member 82 supports the mattress from below. That is, the upper surface of the body portion 84 serves as a placement surface on which the mattress is placed. It should be noted that the body portion 84 may be a thin plate instead of a pipe.

As shown in FIG. 18A, the fifth adjusting member 82 projects the front end 84a of the body portion 84 from the back frame 17 and the back bottom 26 by sliding the shaft portion 83 forward with respect to the pedestal 80. can be a first position. On the other hand, as shown in FIG. 18(b), the fifth adjusting member 82 slides the shaft portion 83 rearwardly with respect to the base 80 so that the front end 84a of the main body portion 84 is moved between the back frame 17 and the back bottom 26. As shown in FIG. The second position may be smaller than the first position projecting from.

In this way, the fifth adjusting member 82 can be changed between the first position and the second position by changing the manner in which it is fixed to the bottom 25 via the base 80 . Therefore, the length of the bed 10 can be easily adjusted. In addition, since the fifth adjusting member 82 is fixed to the bottom 25 in both the first position mode and the second position mode, a storage place for the fifth adjusting member 82 can be secured and the fifth adjusting member 82 can be prevented from being lost. can be suppressed.

Next, a bed 10 having a sixth adjusting member 92 according to a fifth embodiment of the invention will be described with reference to FIGS. 19 to 22. FIG. In the fifth embodiment, a sixth adjustment member 92 supporting a plurality of back bottoms 26 is fixed to the back frame 17 at first and second positions. In addition, in 5th Embodiment, the same code|symbol is attached|subjected to the component same as 1st Embodiment mentioned above, and the description is abbreviate|omitted.
FIG. 19 is an exploded perspective view showing the back bottom side of the bed provided with the sixth adjusting member according to the fifth embodiment of the present invention.
20 is a side view showing an enlarged portion A in FIG. 19. FIG.
FIG. 21 is a perspective view showing a state where the sixth adjustment member is attached to the back frame. FIG. 21(a) is a perspective view showing the entire back bottom. FIG. 21(b) is a perspective view showing an enlarged fixing portion.
FIG. 22 is a perspective view showing a state in which the length of the bed is shortened by the sixth adjusting member. FIG. 22(a) is a perspective view showing the entire back bottom. FIG.22(b) is a perspective view which expands and shows a fixing|fixed part.
19 to 22 show the side frames 14 and the back bottom 26 partially cut away for convenience of explanation. 19 to 22, the back frame 17 and the sixth adjusting member 92 on the left side will be described, but the back frame 17 and the sixth adjusting member 92 on the right side have the same configuration. ing.

The first engaging portion 90 a and the second engaging portion 90 b are provided on the back frame 17 . The first engaging portion 90a and the second engaging portion 90b are positioned, for example, on the rear end side of the back frame 17 and protrude from the side surface of the back frame 17 in the left-right direction.

The first engaging portion 90a and the second engaging portion 90b are provided side by side in the front-rear direction. The first engaging portion 90a is positioned in front of the second engaging portion 90b. The first engaging portion 90a is used when the sixth adjusting member 92 is in the first position, and the second engaging portion 90b is used when the sixth adjusting member 92 is in the second position.

The sixth adjustment member 92 is arranged below the plurality of back bottoms 26 . This sixth adjustment member 92 supports a plurality of back bottoms 26 and constitutes the adjustment member of the present invention. The sixth adjustment member 92 is fixed to the lower surface of each back bottom 26 by welding or the like. The sixth adjustment member 92 is detachably provided on the upper surface of the back frame 17 .

The sixth adjustment member 92 can be changed between a first position protruding forward from the back frame 17 of the bottom frame 16 and a second position positioned inside the first position in the front-rear direction. That is, the sixth adjustment member 92 can change the length of the bed 10 in the front-rear direction (longitudinal direction) by selecting the first position and the second position. In other words, the sixth adjustment member 92 can change between a first position in which the longitudinal direction is long and a second position in which the longitudinal direction is short. The sixth adjustment member 92 has a body portion 93 and an engaged portion 94 provided on the rear end side of the body portion 93 .

The body portion 93 is formed by bending a thin plate made of, for example, a metal material or a resin material. The main body portion 93 is formed in an L shape by a contact surface portion 93a that contacts the back frame 17 and a vertical surface portion 93b that extends downward from the left-right outer end portion of the contact surface portion 93a.

The upper surface of the contact surface portion 93 a of the body portion 93 is fixed to the lower surface of the back bottom 26 . The upright portion 93 b faces the side surface of the back frame 17 while the sixth adjustment member 92 is attached to the back frame 17 . That is, the sixth adjustment member 92 is attached so as to cover the back frame 17 .

The engaged portion 94 is formed at an end portion (rear end) of the body portion 93 in the front-rear direction. The engaged portion 94 is formed at a position corresponding to the first engaging portion 90a and the second engaging portion 90b. The engaged portion 94 is a recess recessed from the end (rear end) of the upright portion 93b. A notch portion 96 is formed on the front side of the engaged portion 94 . When the sixth adjustment member 92 is in the second position, the first engagement portion 90a is positioned within the notch portion 96. As shown in FIG.

As shown by the solid line in FIG. 20, the sixth adjusting member 92 can be brought to the first position by engaging the engaged portion 94 with the first engaging portion 90a. On the other hand, by engaging the engaged portion 94 with the second engaging portion 90b as indicated by the dashed line in FIG. 20, the sixth adjusting member 92 can be brought to the second position.

As shown in FIG. 21 , when the engaged portion 94 of the sixth adjustment member 92 is in the first position in which the engaged portion 94 is engaged with the first engaging portion 90a, the front end 17a1 of the back frame 17 extends forward. The front end 93c of the main body portion 93 of the sixth adjustment member 92 can be projected toward the front end 93c by the dimension L8. Thereby, the length of the front-back direction of the bed 10 can be lengthened.

On the other hand, as shown in FIG. 22 , when the engaged portion 94 of the sixth adjustment member 92 is in the second position in which the engaged portion 94 is engaged with the second engaging portion 90 b , the front end 17 a 1 of the back frame 17 The front end 93c of the body portion 93 of the sixth adjustment member 92 can be projected forward by the dimension L9. The dimension L9 when the sixth adjustment member 92 is in the second position is shorter than the dimension L8 when the sixth adjustment member 92 is in the first position (L9<L8). Accordingly, when the sixth adjusting member 92 is at the second position, the length of the bed 10 in the front-rear direction can be made shorter than when the sixth adjusting member 92 is at the first position.

Thus, the sixth adjusting member 92 can collectively move all of the plurality of back bottoms 26 in the front-rear direction (first position and second position). Therefore, the length of the bed 10 can be easily adjusted. The sixth adjustment member 92 also allows multiple back bottoms 26 to move together without changing the gap between each back bottom 26 .

In the first to fifth embodiments described above, the case where the first, third to

sixth adjustment members

30, 65, 70, 82, 92 are provided on the back bottom 26 side has been described as an example. However, the aspect of the present invention is not limited to this, and for example, the first, third to

sixth adjustment members

30, 65, 70, 82, 92 may be provided on the leg bottom 28b side. Further, in the first embodiment, the case where the second adjustment member 50 is provided on the leg bottom 28b side has been described as an example. However, the aspect of the present invention is not limited to this. For example, instead of the first adjustment member 30, the second adjustment member 50 may be provided on the back bottom 26 side.

Further, in the first embodiment described above, the case where the fixing portion 17b is passed through the through hole 25a, which is the vent, has been described as an example. However, the aspect of the present invention is not limited to this. For example, the bottom 25 may have a separate through hole for allowing the fixing portion 17b to pass therethrough.

In the above-described embodiment, the electric bed 10 in which the height and angle of the bottom 25 are electrically operated has been taken as an example. However, the present invention is not limited to this. For example, a bed in which the height and angle of the bottom can be manually operated, and a bed in which the height and angle of the bottom cannot be changed may be used.

As a bed based on the embodiment described above, for example, the following modes are conceivable.

A first aspect is a bed comprising a bottom frame extending in the front-rear direction, a plurality of bottoms provided on the bottom frame and arranged in the front-rear direction, and an adjusting member disposed on the bottom, wherein the adjusting member is capable of changing between a first position protruding forward from the bottom frame and a second position positioned inside the first position in the front-rear direction.

According to a second aspect, in the first aspect, the adjusting member is arranged above the bottom so that the length of the mounting surface in the front-rear direction can be adjusted without changing the position of the bottom. It is characterized by

According to a third aspect, in the first aspect, the adjusting member is arranged below the bottom, and the length of the mounting surface in the front-rear direction can be adjusted by changing the position of the bottom. It is characterized by

According to a fourth aspect, in the first aspect, the bottom frame has a frame main body and a fixing portion provided on the frame main body to which the adjusting member is fixed, and the adjusting member includes the fixing portion It is characterized in that the first position and the second position can be changed by changing the mode of fixing to.

A fifth aspect is characterized in that, in the first aspect, the adjustment member can change the first position and the second position by changing the manner in which it is fixed to the bottom.

In a sixth aspect based on the fourth aspect, the fixing portion protrudes upward from the frame main body, the bottom has a through hole through which the fixing portion can pass, and the adjusting member comprises: a main body portion facing the upper surface of the bottom; and an insertion hole formed in the main body portion and through which a fixing member for fixing the adjusting member to the fixing portion is inserted, wherein the adjusting member The dimension from the insertion hole to the front end of the adjustment member is larger than the dimension from the insertion hole to the rear end of the adjustment member when it is in the position.

A seventh aspect is characterized in that, in the sixth aspect, the adjustment member has a protruding portion that protrudes upward around the main body portion.

According to an eighth aspect, in the sixth or seventh aspect, the adjustment member has a ventilation hole that penetrates the main body in the vertical direction, and the insertion hole and the ventilation hole are aligned in the horizontal direction. characterized by being formed

The aforementioned embodiments are examples embodying the present invention, and the present invention is not limited to these embodiments. For example, the present invention includes additions, deletions, or modifications of some components in the above-described embodiments.

REFERENCE SIGNS LIST 10 bed 12 base frame 14 side frame 14a head side frame 14b foot side frame 15a board mounting portion 15b board mounting portion 16 bottom frame 17 back frame 17a body frame 17a1 front end 17b fixing portion 18 waist frame 19 knee frame 20 foot frame 20a Body frame 20b First fixing part 20c Second fixing part 25 Bottom 25a Through hole 26 Back bottom 26a Front end 27 Waist bottom 28 Leg bottom 28a Knee bottom 28b Leg bottom 30 First adjustment member (adjustment member)
30a One end 30b Other end 32 Main body

32a Upper surface

32b Lower surface 34 Insertion hole 36 Air hole 38 Projection 40 Fixing member 40a Head 40b Shaft 50 Second adjustment member (adjustment member)
52 body portion 54 extension portion 54a hook portion 56 standing portion 60 fixing portion 62a first fitting portion 62b second fitting portion 63 insertion hole 65 third adjusting member (adjusting member)
66 body portion 66a contact surface portion 66b vertical surface portion 67 rear nut 68 engaged portion 69 fixing member 70 fourth adjusting member (adjusting member)
71 body portion 72 clamping portion 80 pedestal 80a through hole 82 fifth adjusting member (adjusting member)
83 Shaft 84 Main body 84a Front end 90a First engaging part 90b Second engaging part 92 Sixth adjusting member (adjusting member)
93 body portion 93a contact surface portion 93b upright surface portion 93c front end 94 engaged portion 96 notch portion 101 first driving device 103 second driving device 105 control portion

Claims

a bottom frame extending in the front-rear direction;
a plurality of bottoms provided on the bottom frame and arranged in the front-rear direction;
an adjustment member disposed on the bottom;
in a bed with
The bed, wherein the adjustment member can be changed between a first position protruding forward from the bottom frame and a second position positioned inside the first position in the front-rear direction.
2. The apparatus according to claim 1, wherein said adjusting member is arranged above said bottom, and is capable of adjusting the length of said mounting surface in the front-rear direction without changing the position of said bottom. bed.
2. The apparatus according to claim 1, wherein the adjustment member is arranged below the bottom, and is capable of adjusting the length of the mounting surface in the front-rear direction by changing the position of the bottom. bed.
The bottom frame has a frame main body and a fixing portion provided on the frame main body to which the adjusting member is fixed,
2. The bed according to claim 1, wherein the adjustment member can change the first position and the second position by changing the manner in which it is fixed to the fixing part.
The bed according to claim 1, wherein the adjusting member can change between the first position and the second position by changing the manner in which it is fixed to the bottom.
The fixing portion protrudes upward from the frame main body,
The bottom has a through hole through which the fixing portion can pass,
The adjusting member has a body portion facing the upper surface of the bottom, and an insertion hole formed in the body portion and through which a fixing member for fixing the adjusting member to the fixing portion is inserted,
A dimension from the insertion hole to the front end of the adjustment member is larger than a dimension from the insertion hole to the rear end of the adjustment member when the adjustment member is in the first position. The bed according to claim 4.
The bed according to claim 6, wherein the adjusting member has a projecting portion projecting upward around the body portion.
The adjustment member has a vent hole that penetrates the main body in the vertical direction,
8. The bed according to claim 6, wherein the through hole and the ventilation hole are formed side by side in the left-right direction.