CN106473505B

CN106473505B - Bed device

Info

Publication number: CN106473505B
Application number: CN201610722940.0A
Authority: CN
Inventors: 川本哲司; 增川贵之; 伊藤良文
Original assignee: Paramount Bed Co Ltd
Current assignee: Paramount Bed Co Ltd
Priority date: 2015-08-31
Filing date: 2016-08-25
Publication date: 2020-11-03
Anticipated expiration: 2036-08-25
Also published as: CN106473505A; JP6681684B2; JP2017046848A

Abstract

The invention provides a bed device. The bed device includes: a bed having a plurality of elongated plate members arranged in parallel; and a support frame having connected members connected to the plate members, and supporting the bed. Further, a coupling means for coupling the plate members and the coupled member is provided between the plate members and the coupled member.

Description

Bed device

Technical Field

The present invention relates to a bed apparatus.

Background

Conventionally, a bed device shown in, for example, patent document 1 below is known. The bed device includes: a bed having a plurality of plate members arranged in parallel and long; and a support stand which has a connected member to which the plate member is connected and supports the bed.

Documents of the prior art

Patent document

Patent document 1: japanese unexamined patent publication No. 2006-340962

In recent years, however, in various bed devices having different bed sizes, it has been desired to make the support frame common. In this case, it is preferable that the support frame is made common in the same form or in a form in which the change is minimized.

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made in view of the above circumstances, and an object thereof is to provide a bed device that can employ beds of various sizes while suppressing a change in the form of a support frame.

Means for solving the problems

In order to solve the above problem, the present invention proposes the following.

(1) A bed device according to an aspect of the present invention includes: a bed having a plurality of elongated plate members arranged in parallel; and a support frame which has connected members connected to the plate members and supports the bed, wherein a connection means for connecting the plate members to the connected members is provided between the plate members and the connected members.

(2) According to the bed device described in the above (1), the following configuration may be adopted: the connecting means can generally connect the plate members of various forms having different lengths to the connected member.

In these aspects, since the connecting means is provided between the plate member and the connected member, even if the plate members have different lengths, the plate members can be attached to the support frame having the common connected member via the connecting means. Therefore, in the bed device, it is possible to adopt beds of various sizes while suppressing the change in the form of the support frame.

(3) According to the bed device described in the above (1) or (2), the following configuration may be adopted: a groove portion formed along a longitudinal direction of the plate member is provided on a mounting surface of the plate member facing the joined member; at least a part of the connecting unit is disposed in the groove portion in a state of being locked in the groove portion.

In this case, the recessed groove portion is formed along the longitudinal direction of the plate member, and therefore, the coupling unit can be arranged at a desired position of the plate member along the longitudinal direction regardless of the length of the plate member.

(4) According to the bed device described in any one of the above (1) to (3), the following configuration may be adopted: the coupling means couples the plate member and the coupled member by screwing.

In this case, the connecting means connects the plate member and the connected member by screwing, and therefore, the plate member can be easily connected to the connected member.

(5) According to the bed device described in any one of (1) to (4), the following configuration may be adopted: when the plate member is viewed in a cross section orthogonal to the longitudinal direction of the plate member, the dimension and shape of the plate member are equal at any position over the entire length of the plate member in the longitudinal direction.

(6) Another aspect of the present invention provides a bed device including: a bed having a plurality of elongated plate members arranged in parallel; and a support frame that has connected members connected to the plate members and supports the bed, wherein when the plate members are viewed in a cross section orthogonal to a longitudinal direction of the plate members, a dimension and a shape of each plate member are equal at any position over an entire length of each plate member in the longitudinal direction.

In this aspect, since the above-described dimensions and shapes of the plate members are equal over the entire length in the longitudinal direction, even if any plate member has a different length, the shape of the portion of the plate member connected to the connected member can be made equal. Therefore, the bed device can be attached to a support frame having a common member to be connected even if the plate members have different lengths, and can adopt beds of various sizes while suppressing a change in the form of the support frame.

Further, since the above-described dimensional shape of the plate member is the same over the entire length in the longitudinal direction, the plate member can be easily formed by extrusion molding in which the molding material is extruded in the longitudinal direction.

(7) According to the bed device described in any one of (1) to (6), the following configuration may be adopted: cover members are provided at the longitudinal ends of the plate members.

In this case, since the cover member is provided at the end portion of the plate member in the longitudinal direction, for example, even when the plate member is opened outward in the longitudinal direction, the end portion of the plate member can be covered from the outside in the longitudinal direction by the cover member.

(8) According to the bed device described in any one of (1) to (7), the following configuration may be adopted: each of the plate members forms at least one of a back plate and a leg plate supported to be rotatable about a rotation shaft extending in the left-right direction.

In this case, since the plurality of plate members form at least one of the back plate and the leg rest, it is possible to adopt a variety of sizes of beds while suppressing a change in the form of the support frame even in a bed apparatus having a rising function and a leg-raising function.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, it is possible to provide a bed device that can use beds of various sizes while suppressing the change in the form of the support frame.

Drawings

Fig. 1 is a side view of a bed device according to an embodiment of the present invention as viewed from the left-right direction.

Fig. 2 is a top view of the bed arrangement shown in fig. 1.

Fig. 3 is a bottom view of the bed arrangement shown in fig. 1.

Fig. 4 is a side view of the bed device shown in fig. 1, as viewed from the leg side.

Fig. 5 is a perspective view showing a state where a back board and a leg board constituting the bed device shown in fig. 1 are rotated.

Fig. 6 is a perspective view of a plate member constituting the bed device shown in fig. 1.

Fig. 7 is a cross-sectional view orthogonal to the left-right direction for a main portion including the plate member shown in fig. 6.

Fig. 8A is a bed device in which the width of the bed is narrow, and fig. 8B is a bed device in which the width of the bed is wide.

Fig. 9A is a cross-sectional view orthogonal to the left-right direction of a main portion including a plate member constituting a bed device according to a modification of the present invention.

Fig. 9B is an enlarged view of a portion a of fig. 9A.

Description of the symbols

10 bed device

11 bed

12 support stand

16 plate member

16a mounting surface

18 back support plate

19-leg supporting plate

32 1 st connected component (connected component)

39 nd 2 nd connected member (connected member)

52 connecting unit

54 groove part

Detailed Description

The bed device 10 according to an embodiment of the present invention will be described below with reference to the drawings. The bed device 10 can be used in, for example, a medical environment (including a nursing environment). In fig. 1 to 9A, arrow H indicates the direction toward the head when a person (user) is sleeping, and arrow F indicates the direction toward the legs when a person is sleeping. In the following description, a horizontal direction perpendicular to the front-rear direction, which is the direction of arrow H, F, may be referred to as a left-right direction.

As shown in fig. 1 to 5, the bed device 10 includes a bed 11, a support frame 12, a plate 13, and a drive mechanism 14. In fig. 5, the drive mechanism 14 is not shown.

The bed 11 includes a plate member 16, and the plate member 16 is long and forms a bed surface 15 by arranging a plurality of plates in parallel. The plate members 16 have the same shape and the same size. Each plate member 16 is formed in an elongated plate shape extending in the left-right direction (plate length direction in which the plate member 16 extends), and a plurality of plates are arranged in parallel with each other in the front-rear direction. The plate members 16 are disposed at the same positions in both the vertical direction and the horizontal direction in a normal state before the bed 11 is deformed to a state of rising or knee-lifting by the drive mechanism 14. The plate members 16 are arranged on the same plane in a normal state. In the normal state, the upper surface of each plate member 16 faces upward, and the lower surface faces downward.

A pair of left and right cover members 17 are provided at both ends of each plate member 16 in the left-right direction. Cover members 17 are attached to both left and right ends of each plate member 16 from the outside in the left-right direction. Each cover member 17 is formed in a semi-elliptical shape protruding outward in the left-right direction in a plan view.

The upper surfaces of the plurality of plate members 16 and the plurality of cover members 17 form a part of the bed surface 15. The bed surface 15 is an orthogonal surface orthogonal to the vertical direction in the above-described standard state. The bed surface 15 is formed in a rectangular shape having a longer length in the front-rear direction than in the left-right direction in plan view. The length direction of the bed surface 15 is the front-rear direction, and the width direction of the bed surface 15 is the left-right direction. A mattress M (see fig. 1) is disposed on the bed surface 15.

The plurality of plate members 16 are divided into a plurality of groups along the front-rear direction. The plurality of plate members 16 are grouped into a back blade 18 and a leg blade 19 in this order from the head side H toward the leg side F. The leg rest 19 is divided into a knee rest 20 and a foot rest 21 in order from the head side H toward the leg side F. Back support plate 18 corresponds to the position of the back of the user in bed 15, and leg support plate 19 corresponds to the position of the user from the waist to the toe of the user in bed 15. Knee brace 20 corresponds to a position from the waist to the knee of the user in bed 15, and foot brace 21 corresponds to a position from the knee to the toe of the user in bed 15. The upper surface of back support plate 18 and the upper surface of leg support plate 19 (knee support plate 20 and leg support plate 19) each form part of deck 15.

The support frame 12 supports the bed 11 from below the bed 11. In the present embodiment, the support frame 12 supports the back support plate 18 and the leg support plate 19 (movable support plate) so as to be rotatable about the

rotation shafts

22 and 23. The bed arrangement 10 becomes a so-called movable backrest bed. The support stand 12 includes a stand main body 24, a1 st rotation mechanism 25, and a 2 nd rotation mechanism 26.

The stand body 24 receives the load of the bed 11 and the load of the user on the bed 11. The gantry body 24 includes a main frame 27 having a rectangular shape in plan view, and a leg member 28 extending downward from the main frame 27.

The main frame 27 (gantry main body 24) is smaller than the bed 11 (bed surface 15) in the right and left direction. That is, the width dimension (the dimension in the left-right direction) of the main frame 27 is smaller than the width dimension of the bed 11. The center portion in the left-right direction of the main frame 27 is disposed at a position equivalent to, i.e., substantially aligned with, the center portion in the left-right direction of the bed 11. The bed 11 protrudes to both sides in the left-right direction with respect to the main frame 27. The main frame 27 can support both ends of the bed 11 in the right-left direction from below.

The main frame 27 has a pair of left and right longitudinal members 30 extending in the front-rear direction and a pair of front and rear transverse members 31 extending in the left-right direction. The pair of front and rear horizontal members 31 connect the pair of left and right vertical members 30 in the left-right direction. The horizontal member 31 has its respective ends in the left-right direction connected to the corresponding vertical members 30. The longitudinal members 30 have respective ends in the front-rear direction protruding outward in the front-rear direction with respect to the lateral members 31.

The leg members 28 are provided in plural, and in the present embodiment, two pairs of the left and right leg members 28 are arranged at intervals in the front-rear direction. That is, the leg members 28 of the present embodiment are provided with a total of 4. Each leg member 28 is disposed in a portion of the main frame 27 where the vertical member 30 and the horizontal member 31 are connected. A caster 29 is provided at the lower end of each leg member 28.

The 1 st rotation mechanism 25 holds the back splint 18 rotatably about the 1 st rotation shaft 22. The 1 st rotating mechanism 25 rotates the back splint 18 about the 1 st rotating shaft 22 as it moves up and down, thereby tilting the back splint 18 with respect to the horizontal plane while raising the head side H of the back splint 18. The 1 st rotating mechanism 25 includes a1 st coupled member 32, a1 st movable member 33, and a1 st fixed member 34.

The 1 st coupled member 32 is coupled to the plate member 16 forming the back splint 18. The 1 st coupled member 32 integrally couples the plurality of plate members 16 forming the back splint 18. The 1 st coupled member 32 is coupled to the lower surface of each plate member 16. The pair of 1 st coupling members 32 extend in the front-rear direction and are arranged at a spacing in the left-right direction.

The 1 st movable member 33 is coupled to the back splint 18, and in the present embodiment, is coupled to the back splint 18 via the 1 st coupled member 32. The 1 st movable member 33 has a movable rod portion 35 and a movable plate portion 36. The movable lever 35 is located on the leg side F with respect to the back plate 18 and is disposed on the stand main body 24. The movable rod portion 35 linearly extends in the left-right direction and is bridged over the pair of vertical members 30. The movable lever portion 35 is coupled to an end portion of the leg side F of the 1 st coupled member 32.

A pair of movable plate sections 36 are provided so as to sandwich the movable rod section 35 from both sides in the left-right direction. Each movable plate portion 36 is connected to an end portion of the movable rod portion 35 in the left-right direction from the outside in the left-right direction. Each movable plate portion 36 forms an end portion of the 1 st movable member 33 in the left-right direction. The end of the 1 st movable member 33 in the left-right direction is exposed to the outside in the left-right direction. The upper end of the movable plate 36 protrudes upward relative to the bed surface 15.

The 1 st fixing member 34 is coupled to the gantry body 24. The 1 st fixing member 34 has a fixing rod portion 37 and a fixing plate portion 38. The fixed lever 37 is located on the leg side F with respect to the movable lever 35 and is disposed on the stand main body 24. The fixed rod portion 37 extends linearly in the left-right direction and is bridged over the pair of vertical members 30. The fixed rod portion 37 is connected to each of the vertical members 30.

A pair of fixing plate portions 38 are provided so as to sandwich the fixing rod portion 37 from both sides in the left-right direction. The fixing plate portions 38 are coupled to the ends of the fixing rod portion 37 in the left-right direction from the outside in the left-right direction. Each fixing plate portion 38 forms an outer end portion of the 1 st fixing member 34 in the left-right direction. The 1 st fixing member 34 has left and right ends exposed to the outside in the left-right direction. The upper end of the fixing plate 38 protrudes upward with respect to the bed surface 15.

The 1 st fixing member 34 is disposed inside the pair of left and right movable plate sections 36, and the fixed plate section 38 is adjacent to the movable plate sections 36 from the inside in the left-right direction. The 1 st fixed member 34 is coupled to the 1 st movable member 33 via the 1 st rotating shaft 22. The 1 st rotation shaft 22 is positioned above the bed surface 15 and extends in the left-right direction. The 1 st rotating shaft 22 is coaxially disposed in a pair of left and right, and the upper end of the movable plate section 36 and the upper end of the fixed plate section 38 are connected to each other.

By positioning the 1 st pivoting shaft 22 above the bed surface 15 in this manner, the height position of the 1 st pivoting shaft 22 is close to the height position of the greater trochanter of the user on the bed surface 15. This reduces the feeling of pressure on the user when the back plate 18 is rotated about the 1 st rotation shaft 22.

The 2 nd rotation mechanism 26 holds the leg rest 19 rotatably about the 2 nd rotation shaft 23. The 2 nd rotation mechanism 26 bends the leg rest 19 by rotating the leg rest 19 about the 2 nd rotation axis 23 such that a portion of the leg rest 19 between the knee rest 20 and the foot rest 21 protrudes toward the upper side. At this time, the leg-side F end of the leg rest 21 moves toward the head side H on the mount body 24 in a state where the head-side H end of the knee rest 20 is fixed in the front-rear direction.

The 2 nd rotating mechanism 26 has a 2 nd coupled member 39, a 2 nd movable member 40, and a 2 nd fixed member 41. The 2 nd coupled member 39 is coupled to the plate member 16 forming the leg rest 19. The 2 nd coupled member 39 integrally couples the plurality of plate members 16 forming the leg rest 19. The 2 nd coupled member 39 is coupled to the lower surface of each plate member 16. The pair of 2 nd to-be-connected members 39 extend in the front-rear direction and are arranged at a spacing in the left-right direction.

Each of the 2 nd members to be connected 39 is divided into two portions, a head-side dividing portion 42 and a leg-side dividing portion 43, along the front-rear direction. The head-side divided portion 42 is coupled to the plate member 16 forming the knee splint 20, and the leg-side divided portion 43 is coupled to the plate member 16 forming the foot splint 21. The head-side dividing portion 42 and the leg-side dividing portion 43 are rotatably coupled via a 3 rd rotating shaft 44 extending in the left-right direction.

The 2 nd movable member 40 is coupled to the leg rest 19, and in the present embodiment, is coupled to the leg rest 19 via the 2 nd coupled member 39. The 2 nd movable member 40 is positioned on the head side H with respect to the 2 nd coupled member 39. The 2 nd movable member 40 is coupled to the end portion on the head side H of the 2 nd coupled member 39. The end of the 2 nd coupled member 39 on the leg side F is a free end.

The 2 nd fixing member 41 is coupled to the gantry body 24, and in the present embodiment, is coupled to the gantry body 24 via the 1 st fixing member 34. The 2 nd fixing part 41 protrudes from the 1 st fixing part 34 toward the leg side F. The pair of 2 nd fixing members 41 are disposed at intervals in the left-right direction. The 2 nd fixing member 41 is coupled to the 2 nd movable member 40 via the 2 nd rotating shaft 23. The 2 nd rotation shaft 23 is located below the bed surface 15 and extends in the left-right direction. The 2 nd rotation shaft 23 is coaxially disposed with a pair of left and right.

In the support frame 12, the back support plate 18 is coupled to the frame main body 24 via the 1 st rotating mechanism 25, and the leg support plate 19 is coupled to the frame main body 24 via the 2 nd rotating mechanism 26. The 1 st pivot mechanism 25 and the 2 nd pivot mechanism 26 pivot the back board 18 and the leg board 19 from the above-described standard state, thereby bringing the bed 11 into a typical use state of rising and raising the legs (knee-raising) as shown in fig. 5. When the bed 11 is changed from the normal state to the use state, the user can be effectively prevented from being displaced from the bed device 10 by lifting the legs before rising.

As shown in fig. 1 to 5, the plate 13 is fixed to the support frame 12 and rises upward with respect to the bed surface 15. The plate 13 is provided in a pair of front and rear portions and stands from both end portions in the front-rear direction of the gantry main body 24.

The drive mechanism 14 rotates the back board 18 and the leg boards 19 (movable boards) about the

rotation shafts

22, 23. The driving mechanism 14 includes a1 st driving mechanism 14a for rotating the back blade 18 and a 2 nd driving mechanism 14b for rotating the leg blade 19.

Each driving mechanism 14 is attached to the support frame 12. Each driving mechanism 14 is disposed below the leg rest 19. Each driving mechanism 14 is disposed in a disposition space 45 provided below the bed 11. The arrangement space 45 is formed in a portion of the gantry main body 24 between the main frame 27 and the leg member 28. The drive mechanisms 14 are exposed through the arrangement space 45 toward the left or right side of the bed device 10.

Each drive mechanism 14 has an expansion section 46 and a drive section 47. The stretchable portion 46 extends in the front-rear direction and is stretchable in the front-rear direction. The driving unit 47 extends and contracts the extensible unit 46 based on power supplied from the outside.

Each drive mechanism 14 is connected to the stand main body 24 and the back tray 18 or the leg tray 19 as a movable tray. Each drive mechanism 14 is connected to the back support plate 18 or the leg rest plate 19 and the stand main body 24 via a pair of front and

rear link mechanisms

48 and 49 provided on the support stand 12. The pair of front and

rear link mechanisms

48 and 49 convert the front and rear expansion and contraction of the expansion and contraction portion 46 of each drive mechanism 14 into rotation of the back blade 18 or the leg blade 19 about the

rotation shafts

22 and 23.

The link mechanism 48a provided on the head side H of the 1 st driving mechanism 14a connects the 1 st driving mechanism 14a and the 1 st movable member 33, and the link mechanism 49a provided on the leg side F of the 1 st driving mechanism 14a connects the 1 st driving mechanism 14a and the gantry main body 24. The two

link mechanisms

48a and 49a convert the elongation of the 1 st drive mechanism 14a into the rotation of the back splint 18 about the 1 st rotation shaft 22 toward the upper side.

Further, a link mechanism 48b provided on the head side H of the 2 nd driving mechanism 14b connects the 2 nd driving mechanism 14b and the 2 nd movable member 40, and a link mechanism 49b provided on the leg side F of the 2 nd driving mechanism 14b connects the 2 nd driving mechanism 14b and the gantry main body 24. The two

link mechanisms

48b, 49b convert the contraction of the 2 nd drive mechanism 14b into the rotation of the leg rest 19 toward the upper side about the 2 nd rotation shaft 23.

In the illustrated example, the driving unit 47 of each driving mechanism 14 is a manual driving unit that uses human operation as a power source, and each driving mechanism 14 is a manual driving mechanism 14. The driving unit 47 is disposed at an end of the leg side F of the expansion unit 46 and protrudes from the gantry main body 24 toward the leg side F along the front-rear direction. This ensures operability when the back blade 18 and the leg blade 19 are rotated by the driving unit 47. On the other hand, in a state where the driving section 47 is not operated (a normal use state of the bed apparatus 10), for example, by the driving section 47 being bent from the leg side F toward the head side H, the driving section 47 is disposed at a position P indicated by a two-dot chain line in fig. 1 and is accommodated in the disposition space 45, and it is possible to suppress the driving section 47 from becoming an obstacle to a medical practitioner or the like.

Instead of manpower, an electric drive unit using electric power as a power source may be used as the drive unit 47.

Here, in the present embodiment, as shown in fig. 6 and 7, when each plate member 16 is viewed in a cross section orthogonal to the left-right direction (the longitudinal direction of the plate member, the plate longitudinal direction in which the plate member extends), the dimension and shape of each plate member 16 are equal at any position over the entire length in the left-right direction. The plate member 16 is formed in the same shape and the same size at any position over the entire length in the left-right direction on a cross section orthogonal to the left-right direction. The plate member 16 is formed by extrusion molding in which a molding material such as synthetic resin or light metal is extruded in the left-right direction (plate longitudinal direction).

The plate member 16 has the same shape as that shown in fig. 7 in both the side view and the vertical cross-section at an arbitrary position in the longitudinal direction. That is, the plate member 16 has a plate main body 50 and a plurality of reinforcing ribs 51. The plate body 50 forms an outer surface of the plate member 16. The board main body 50 is formed in an inverted isosceles trapezoid shape when viewed from the left-right direction. The lower surface of the plate main body 50 in the front-rear direction is smaller than the upper surface of the plate main body 50. That is, when the plate body 50 is viewed from the left-right direction, the width of the lower surface of the plate body 50 is shorter than the width of the upper surface of the plate body 50. The lower surface is a mounting surface 16a of the plate member 16 facing the coupled members 32 and 39 (the 1 st coupled member 32 and the 2 nd coupled member 39). The plate main body 50 is formed as a hollow body that is open on both sides in the left-right direction.

The reinforcing ribs 51 are provided in the plate main body 50 over the entire length in the left-right direction of the plate main body 50. The reinforcing ribs 51 connect the upper and lower surfaces of the plate body 50. The reinforcing rib 51 is formed in a plate shape extending linearly in the vertical direction when viewed from the front side in the left-right direction.

A coupling means 52 is provided between the plate member 16 and the coupled

members

32 and 39. The plate members 16 of various forms having different lengths can be coupled to the common coupled

members

32 and 39 by the coupling means 52. The coupling means 52 can couple the plate member 16 to the coupled

members

32 and 39 of the same form regardless of the length of the plate member 16. The coupling means 52 can couple the coupled

members

32, 39 to the plate members 16 having different lengths without changing the form of the coupled

members

32, 39.

In the illustrated example, the screw member 53 is used as the coupling means 52. The screw member 53 is inserted from below the coupled

members

32 and 39 through the coupled

members

32 and 39 and upward. The screw member 53 integrally penetrates the coupled

members

32 and 39 and the lower surface (mounting surface 16a) of the plate body 50 in the vertical direction. The screw member 53 is screwed into a through hole formed in the mounting surface 16 a. That is, the screw member 53 is screwed and fixed into the through hole of the mounting surface 16 a. The screw member 53 connects the plate member 16 and the

connected members

32 and 39 by screwing. The screw members 53 are screwed in a state of being inserted into the mounting surface 16a, and thereby, screw members (screws) for coupling the plate member 16 and the coupled

members

32 and 39 are formed. Instead of the screw members 53, rivets (not shown) may be used as the coupling means 52. The connecting means 52 (screw members 53) may be provided in plural (two or more) for each plate member 16 so as to fix plural portions in the longitudinal direction of the plate member 16. Further, as the screw member 53, a tapping screw may be used.

It is preferable that the position where the coupling means 52 (screw member 53) is provided is a position where the reinforcing ribs 51 are avoided, that is, a position between the reinforcing ribs 51 as indicated by symbol S in fig. 7. The number of the coupling means 52 (screw members 53) may be one or a plurality of positions in the left-right direction of the drawing sheet of fig. 7. For example, as shown by reference numeral 53a in fig. 7, two positions may be provided in the front-rear direction of the bed device 10.

Next, a method for manufacturing the bed device 10 will be described.

First, the width of the bed surface 15 in the horizontal direction is determined. In the bed device 10 of the present embodiment, it is possible to form either a form in which the width W1 of the bed surface 15 is narrow as shown in fig. 8A or a form in which the width W2 of the bed surface 15 is wide as shown in fig. 8B.

The plate member 16 is manufactured by extrusion molding an elongated member. At this time, the long member is extrusion-molded so as to have a dimension longer than the width. Then, the long member is cut along the longitudinal direction of the long member in accordance with the width of the bed surface 15 (bed 11) to form a plate member 16. In the 1 bed device 10, a plurality of plate members 16 having the same length can be used. The width of the plate member 16 may be different from the width of the other plate members 16 according to the need and the installation location.

Further, the support frame 12 is formed. At this time, the support frame 12 is configured to have a common configuration except for the movable rod portion 35 and the fixed rod portion 37 regardless of the width of the bed surface 15. The movable lever portion 35 and the fixed lever portion 37 are adjusted in size in the left-right direction according to the width of the bed surface 15. In addition, a plate 13 and a drive mechanism 14 are formed. The plate 13 and the driving mechanism 14 can take a common form regardless of the width dimension of the bed surface 15. The plate 13 can be changed according to the width of the bed surface 15, and for example, a wide plate can be used according to the width of the bed surface 15.

The plate member 16, the plate 13, and the driving mechanism 14 are assembled to the support frame 12. At this time, the plate member 16 is coupled to the coupled

members

32, 39 via the coupling means 52.

Through the above steps, the bed device 10 is formed.

As described above, according to the bed device 10 of the present embodiment, the coupling means 52 is provided between the plate member 16 and the coupled

members

32 and 39. Thus, even the plate member 16 having different lengths in the left-right direction can be attached to the support frame 12 having the common connected

members

32 and 39 via the connecting unit 52. Therefore, the bed 11 having various sizes can be used while suppressing the change in the form of the support frame 12.

Further, since the connecting means 52 connects the plate member 16 and the

connected members

32 and 39 by screwing, the plate member 16 and the

connected members

32 and 39 can be easily connected.

In addition, the dimension and shape of the plate member 16 as viewed in a cross section orthogonal to the left-right direction are equal at any position over the entire length in the left-right direction. Thus, even if the plate members 16 have different lengths, the shapes of the portions of the plate members 16 connected to the

connected members

32 and 39 can be made equal. Therefore, even the plate members 16 having different lengths can be attached to the support frame 12 having the common connected

members

32 and 39, and the beds 11 having various sizes can be used while suppressing the change in the form of the support frame 12.

Further, since the above-described dimensional shape of the plate member 16 is the same at any position over the entire length in the left-right direction, the plate member 16 can be easily formed by extrusion molding in which a molding material is extruded in the left-right direction.

Cover members 17 are provided at the ends of the plate member 16 in the lateral direction. Thus, for example, even when the plate member 16 is opened outward in the lateral direction as in the present embodiment, the end portion of the plate member 16 can be covered from the lateral outside by the cover member 17. Therefore, the end of the plate member 16 is sealed by the cover member 17, and thus, foreign matter and the like can be reliably prevented from entering the plate member 16 from the outside.

In addition, the plurality of plate members 16 form a back plate 18 and a leg plate 19. Thus, even in the bed device 10 having the rising function and the leg-raising function as in the present embodiment, the bed 11 having various sizes can be used while suppressing the change in the form of the support frame 12.

The scope of the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention.

For example, the plate member 16 and the coupling unit 52 may have the configurations shown in fig. 9A and 9B.

As shown in fig. 9A, a plurality of (e.g., 3) groove portions 54 formed continuously in the left-right direction (plate longitudinal direction) are provided in parallel with each other on the plate member 16. These groove portions 54 cross the mounting surface 16a in the left-right direction. More specifically, each groove portion 54 has the same shape as that shown in fig. 9A in both the case of viewing the plate member 16 sideways and the case of viewing the plate member 16 in a vertical cross section at an arbitrary position in the longitudinal direction of the plate member 16. Each groove portion 54 is recessed upward from the mounting surface 16 a. A widened portion 55 is provided at an intermediate portion in the vertical direction of the recessed portion 54. The widened portion 55 is widened in the front-rear direction with respect to the other portion of the groove portion 54.

The shape of the groove portion 54 is described in more detail with reference to fig. 9B. Each of the groove portions 54 is formed as a cross-sectional closed space divided by a bottom wall 50a of the plate main body 50, a pair of mutually parallel 1 st wall bodies 54a standing vertically upward from an upper surface of the bottom wall 50a, a pair of 2 nd wall bodies 54b formed in directions approaching each other from upper edges of the 1 st wall bodies 54a, a pair of mutually parallel 3 rd wall bodies 54c standing vertically upward from inner edges of the 2 nd wall bodies 54b, and a 4 th wall body 54d connecting upper edges of the 3 rd wall bodies 54c to each other.

Further, a notch 50a1 is formed in the bottom wall 50a to communicate the inside and outside of the recessed groove portion 54. The notch 50a1 is formed continuously over the entire length of the plate main body 50. The widening section 55 is defined by a bottom wall 50a, a pair of 1 st wall bodies 54a, and a pair of 2 nd wall bodies 54b, and a nut 57 is slidably received in the extending direction of the widening section 55.

When the nut 57 is inserted into the enlarged width part 55, the nut 57 is restricted from moving up and down or obliquely by the upper surface of the bottom wall 50a and the lower surfaces of the pair of walls 54b 2. Further, the inner surfaces of the pair of first walls 1a regulate the rotation of the nut 57 when the bolt 56 described later is screwed or displaced in the left-right direction of the drawing sheet of fig. 9B. Therefore, according to the enlarged width portion 55 having the above shape, the displacement in the front-rear direction and the rotation at the time of bolt fixing can be restricted while allowing the sliding movement of the nut 57.

Further, the tip (upper end) of the bolt 56 after screwing is housed in a space divided by the pair of 3 rd wall body 54c and 4 th wall body 54 d. Since the distal end (upper end) does not interfere with the pair of 3 rd and 4

th walls

54c and 54d, the bolt 56 can be reliably screwed to the end.

In the present modification, the lower end of the reinforcing rib 51 is integrally connected to the upper surface of the 4 th wall 54d at the center in the width direction. According to this structure, the combined structure of the pair of 1 st walls 54a, the pair of 2 nd walls 54b, the pair of 3 rd walls 54c, and the 4 th wall 54d is a structure supported from the top and bottom by the bottom wall 50a and the top wall 50b (fig. 9A) of the plate main body 50. Therefore, a stress dispersion effect in the case where an external force acts on the plate main body 50 can be obtained, and breakage of the combined structure can be prevented.

In the present modification, as at least a part of the coupling means 52, a nut 57 is used, and the nut 57 is disposed in the recessed groove 54 in a state of being locked in the recessed groove 54 as described above. That is, in the present modification, as the coupling means 52, a bolt 56 (screw member) and a nut 57 which are screwed with each other are used. In the illustrated example, the nut 57 is disposed in the enlarged width portion 55. The nut 57 has a larger size in the front-rear direction than the portion of the groove portion 54 other than the enlarged width portion 55. This restricts the downward separation of the nut 57 from the inside of the enlarged width portion 55. The bolt 56 is inserted into the groove 54 from below the coupled

members

32 and 39 through the coupled

members

32 and 39, and is screwed with the nut 57. Further, a pair of planes parallel to each other out of six planes constituting the outer surface of the nut 57 is in contact with the inner surface of the enlarged width portion 55. Thus, when the bolt 56 is screwed into the nut 57, the rotation of the nut 57 is restricted by the inner surface of the enlarged width portion 55. As a result, the rotation of the nut 57 can be stopped and the bolt 56 can be reliably screwed without using a special tool. With such a configuration, even if the number of the coupling units 52 is increased, the plate member 16 is fixed without requiring a great deal of time and effort. In addition, loosening of the bolt 56 due to idling of the nut 57 can be reliably suppressed.

In the case of the above-described configuration, the groove portion 54 crosses the mounting surface 16a in the left-right direction. Therefore, regardless of the length of the plate member 16, the coupling means 52 can be disposed at a desired position in the left-right direction of the plate member 16. That is, the connection member 52 does not interfere with other members due to the mounting position of each plate member 16, or the structure can be flexibly changed in consideration of workability in mounting the connection unit 52.

In the illustrated example, the nut 57 is disposed in the enlarged width portion 55, and instead, the head of the bolt 56 may be disposed in the enlarged width portion 55. In this case, a pair of planes parallel to each other among six surfaces of the outer surface of the head of the bolt 56 also hits the inner surface of the enlarged width portion 55, and the rotation of the bolt 56 can be stopped and the nut 57 can be reliably screwed without using a special tool.

In the above embodiment, the drive mechanism 14 is disposed below the leg rest 19, but the present invention is not limited to this. For example, the drive mechanism 14 may be disposed below the back splint 18.

A waist support plate may be disposed between the back support plate 18 and the leg support plate 19. The waist support plate may be fixed to the support frame 12.

In the above embodiment, a so-called double crank (2ACT) movable backrest bed in which both the back board 18 and the leg board 19 are movable boards that rotate around the

rotation shafts

22 and 23 is used, but the present invention is not limited to this. For example, a single crankshaft (1ACT) movable backrest bed in which the back board 18 or the leg board 19 is rotated about the

rotation shafts

22, 23 can be used. In this case, the rising function in which the back support plate 18 is a movable support plate can be preferentially mounted on the bed device 10. That is, in the present invention, at least one of the back palette 18 and the leg palette 19 may be configured as a movable palette, and at least the back palette 18 of the back palette 18 and the leg palette 19 may be configured as a movable palette.

In the above embodiment, as the bed apparatus 10, a so-called movable backrest bed in which the back board 18 and the leg board 19 are rotated is used, but the present invention is not limited to this. For example, the present invention can be applied to a bed device in which the bed 11 is not deformed.

In the above embodiment, the plate member 16 is formed in a long shape extending in the left-right direction, and a plurality of plate members are arranged in parallel in the front-rear direction. For example, the plate member 16 may be formed in a long shape extending in the front-rear direction, and a plurality of the plate members may be arranged in parallel in the left-right direction.

In the above-described embodiment, when the support frame 12 is formed after the bed device 10 is formed, the movable lever portion 35 and the fixed lever portion 37 are adjusted in size (width) in the left-right direction according to the width dimension of the bed surface 15, but the present invention is not limited to this. For example, the movable rod portion 35 and the fixed rod portion 37 are formed to have a slightly larger width so as to be able to cope with beds 11 of all widths, and the support frame 12 can adopt exactly the same form regardless of the width of the bed 11.

In addition, the components in the above-described embodiments may be replaced with well-known components as appropriate within the scope not departing from the gist of the present invention, and the above-described modifications may be combined as appropriate.

Claims

1. A bed apparatus, characterized in that it comprises:

a bed having a plurality of elongated plate members arranged in parallel; and

a support stand that supports the bed, and that has a stand main body and a connected member that is rotatable about a rotation axis located above the stand main body and that is connected to the plurality of plate members,

a groove portion formed along a length direction of the plate member is provided on a lower surface of the plate member,

the groove portion traverses the lower surface along the length direction,

a connecting means for connecting each of the plate members and the connected member is provided between each of the plate members and the connected member,

the coupling means includes a nut disposed in the groove portion and locked in the groove portion, and a bolt inserted into the groove portion through the coupled member and screwed to the nut.

2. The bed arrangement of claim 1,

the support stand supports a plurality of the plate members having the same length as each other,

the connecting means can generally connect the plate members of various forms having different lengths to the connected member.

3. The bed arrangement of claim 1,

the plate member has a plate main body formed to be hollow and provided with the groove portion on a lower surface thereof, and a reinforcing rib connecting upper and lower surfaces of the plate main body,

the reinforcing rib connects a portion of the lower surface of the plate main body, in which the groove portion is provided, with the upper surface of the plate main body.

4. The bed arrangement as claimed in any one of claims 1 to 3,

when the plate member is viewed in a cross section orthogonal to the longitudinal direction of the plate member, the dimension and shape of the plate member are equal at any position over the entire length of the plate member in the longitudinal direction.

5. The bed arrangement of claim 1,

cover members are provided at the longitudinal ends of the plate members.

6. The bed arrangement of claim 1,

each of the plate members forms a back splint supported to be rotatable about the rotation shaft extending in the left-right direction.