CN106473505B - bed unit - Google Patents

Abstract

The present invention provides a bed device. This bed apparatus includes a bed having a plurality of long plate members arranged in parallel, and a support stand having a connected member connected to each of the plate members and supporting the bed. Furthermore, a connecting unit for connecting the respective plate members and the connected member is provided between the respective plate members and the connected member.

Description

bed unit

technical field

The present invention relates to bed arrangements.

Background technique

Conventionally, for example, a bed apparatus shown in the following Patent Document 1 is known. The bed apparatus includes a bed having a plurality of elongated plate members arranged in parallel, and a support stand having a connected member to which the plate members are connected and supporting the bed.

prior art literature

Patent Literature

Patent Document 1: Japanese Patent Laid-Open No. 2006-340962

However, in recent years, in various bed devices with different bed sizes, generalization of the support stand has been desired. In this case, it is preferable that the support stand is universally used in a completely identical form or a form in which changes are suppressed to a minimum.

SUMMARY OF THE INVENTION

The problem to be solved by the invention

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

means of solving problems

In order to solve the above-mentioned problems, the present invention proposes the following solutions.

(1) A bed apparatus according to an aspect of the present invention includes a bed including a plurality of elongated plate members arranged in parallel, and a support stand having a connected member connected to each of the plate members and supporting the bed, A connecting unit for connecting each of the plate members and the connected member is provided between each of the plate members and the connected member.

(2) According to the bed apparatus described in the above (1), the connecting means may be configured to be able to commonly connect the plate members of various forms having different lengths to the connected member.

In these aspects, since the connecting unit is provided between the plate member and the connected member, even the plate members having different lengths can be attached to the support frame having the general connected member via the connecting unit. Therefore, in the bed apparatus, it is possible to employ beds of various sizes while suppressing changes in the form of the support frame.

(3) In the bed apparatus according to the above (1) or (2), a structure may be adopted in which a mounting surface of the plate member facing the connected member is provided with a rib along the plate member. A groove portion formed in the longitudinal direction; 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, since the groove portion is formed along the longitudinal direction of the plate member, the connection unit can be arranged at a desired position along the longitudinal direction of the plate member regardless of the length of the plate member.

(4) According to the bed apparatus described in any one of the above (1) to (3), a structure may be adopted in which the connecting unit connects the plate member and the connected member by screwing.

In this case, since the connecting unit connects the plate member and the connected member by screwing, the plate member and the connected member can be easily connected.

(5) According to the bed apparatus described in any one of the above (1) to (4), a configuration may be adopted in which the plate member is viewed in a cross-section perpendicular to the longitudinal direction of the plate member. , the size and shape of the plate member are the same at any position along the entire length of the plate member in the longitudinal direction.

(6) A bed apparatus according to another aspect of the present invention includes: a bed including a plurality of long plate members arranged in parallel; and a support stand having a connected member connected to each of the plate members and supporting the A bed, when each of the plate members is viewed in a cross-section perpendicular to the longitudinal direction of each of the plate members, the size and shape of each of the plate members are over the entire length of each of the plate members in the longitudinal direction are equal in any position.

In this aspect, the aforementioned dimensions and shapes of the plate members are the same over the entire length in the longitudinal direction. Therefore, even if the plate members have different lengths, the portion of the plate member that is connected to the connected member can be connected. The form is set to be equal. Therefore, in the bed apparatus, even plate members having different lengths can be attached to a support frame having a common connected member, and beds of various sizes can be employed while suppressing changes in the form of the support frame.

In addition, since the aforementioned dimensions and shapes of the plate member are the same over the entire length in the longitudinal direction, the plate member can be easily formed by extrusion molding in which a molding material is extruded along the longitudinal direction.

(7) The bed apparatus according to any one of the above (1) to (6) may be structured such that a cover member is provided at an end portion in the longitudinal direction of each of the plate members.

In this case, since the cover member is provided at the end portion in the longitudinal direction of the plate member, for example, even when the plate member is opened to the outside in the longitudinal direction, the cover member can be used to cover the length of the plate member. The outer side of the direction covers the end of the plate member.

(8) According to the bed apparatus described in any one of the above (1) to (7), a configuration may be adopted in which each of the plate members is rotatably supported around a rotation axis extending in the left-right direction. At least one of the back support plate and the leg support plate.

In this case, since the plurality of plate members form at least one of the back support plate and the leg support plate, even in a bed device having a stand-up function and a leg-lift function, it is possible to suppress the change in the form of the support frame and adopt it. Beds of various sizes.

effect of invention

ADVANTAGE OF THE INVENTION According to this invention, the change of the form of a support frame can be suppressed, and the bed apparatus which can employ|adopt various sizes of beds can be provided.

Description of drawings

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

FIG. 2 is a plan view of the bed apparatus shown in FIG. 1 .

FIG. 3 is a bottom view of the bed apparatus shown in FIG. 1 .

Fig. 4 is a side view of the bed apparatus shown in Fig. 1 viewed from the leg side.

Fig. 5 is a perspective view showing a state in which the back support plate and the leg support plate constituting the bed apparatus shown in Fig. 1 are rotated.

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

FIG. 7 is a cross-sectional view perpendicular to the left-right direction of the main part including the plate member shown in FIG. 6 .

Fig. 8A is a bed arrangement with a narrower bed width, and Fig. 8B is a bed arrangement with a wider bed width.

9A is a cross-sectional view orthogonal to the left-right direction with respect to a main part including a plate member constituting a bed apparatus according to a modification of the present invention.

FIG. 9B is an enlarged view of part A of FIG. 9A .

Symbol Description

10 bed unit

11 beds

12 Support stand

16 board parts

16a Mounting Surface

18 Back plate

19 Leg rests

32 The first connected member (connected member)

39 Second connected member (connected member)

52 link unit

54 Groove

Detailed ways

Below, the bed apparatus 10 which concerns on one Embodiment of this invention is demonstrated based on drawing. The bed apparatus 10 can be used, for example, in a medical environment (including a nursing environment). In FIGS. 1 to 9A , the arrow H represents the orientation of the head side when a person (user) goes to bed, and the arrow F represents the orientation of the leg side when the person goes to bed. In the following description, the horizontal direction orthogonal to the front-rear direction, which is the direction of arrows H and F, is sometimes referred to as the left-right direction.

As shown in FIGS. 1 to 5 , the bed apparatus 10 includes a bed 11 , a support stand 12 , a plate 13 , and a drive mechanism 14 . In addition, in FIG. 5, illustration of the drive mechanism 14 is abbreviate|omitted.

The bed 11 has the board member 16 which is elongated, and forms the bed surface 15 by arranging a plurality of them in parallel. The respective plate members 16 have the same shape and the same size as each other. Each plate member 16 is formed in a long plate shape extending in the left-right direction (the plate longitudinal direction in which the plate member 16 extends), and a plurality of plates are arranged in parallel to each other in the front-rear direction. Each plate member 16 is disposed at the same position in any of the vertical direction and the left-right direction in a standard state before the bed 11 is transformed into a state such as standing up or raising a knee by the drive mechanism 14 . In addition, the respective plate members 16 are arranged on the same plane in a standard state. In the standard 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 end portions in the left-right direction of each plate member 16 . The cover member 17 is attached to the 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 that protrudes outward in the left-right direction in a plan view.

The respective upper surfaces of the plurality of plate members 16 and the plurality of cover members 17 respectively form a part of the aforementioned bed surface 15 . The bed surface 15 is an orthogonal surface orthogonal to the vertical direction in the aforementioned standard state. The bed surface 15 is formed in a rectangular shape in which the length in the front-rear direction is longer than the length in the left-right direction in plan view. The longitudinal 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 arranged 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 board members 16 are grouped into a back support board 18 and a leg support board 19 in this order from the head side H toward the leg side F. The leg rests 19 are grouped into a knee rest 20 and a foot rest 21 in this order from the head side H toward the leg side F. The back support plate 18 corresponds to the position of the user's back in the bed surface 15 , and the leg support plate 19 corresponds to the position from the user's waist to the toes in the bed surface 15 . The knee pad 20 corresponds to the position from the waist to the knees of the user in the bed surface 15 , and the foot pad 21 corresponds to the position from the user's knee to the toes in the bed surface 15 . The upper surface of the back support board 18 and the upper surface of the leg support board 19 (the knee support board 20 and the leg support board 19 ) respectively form a part of the bed surface 15 .

The support stand 12 supports the bed 11 from below the bed 11 . In the present embodiment, the support stand 12 supports the back support plate 18 and the leg support plate 19 (movable support plate) so as to be rotatable around the rotation shafts 22 and 23 . The bed apparatus 10 becomes a so-called convertible bed. The support stand 12 has a stand main body 24 , a first rotating mechanism 25 and a second rotating mechanism 26 .

The stand main body 24 receives the bed 11 and the respective loads of the user on the bed 11 . The stand main body 24 has 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 (the gantry main body 24 ) is smaller than the bed 11 (the bed surface 15 ) in the left-right direction. That is, the width dimension (size in the left-right direction) of the main frame 27 is smaller than the width dimension of the bed 11 . The center part of the left-right direction of the main frame 27 is arrange|positioned so that it may be located in the same position as the center part of the left-right direction of the bed 11 in the left-right direction, that is, substantially aligned. 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 end portions in the left-right direction of the bed 11 from below.

The main frame 27 includes a pair of left and right vertical members 30 extending in the front-rear direction, and a pair of front and rear lateral members 31 extending in the left-right direction. The pair of front and rear horizontal members 31 connects the pair of left and right vertical members 30 in the left-right direction. Each end of the horizontal member 31 in the left-right direction is connected to the corresponding vertical member 30 . Each end portion in the front-rear direction of the vertical member 30 protrudes outward in the front-rear direction with respect to the horizontal member 31 .

There are a plurality of leg members 28, and in the present embodiment, a pair of left and right leg members 28 are arranged in two groups at intervals along the front-rear direction. That is, four leg members 28 in this embodiment are provided in total. Each leg member 28 is arranged at 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 first rotation mechanism 25 holds the back plate 18 rotatably around the first rotation axis 22 . The first rotating mechanism 25 tilts the backing plate 18 with respect to the horizontal plane while raising the head side H of the backing plate 18 by rotating the backing plate 18 around the first rotating shaft 22 along with the ups and downs. The first rotation mechanism 25 includes a first connected member 32 , a first movable member 33 , and a first fixed member 34 .

The first connected member 32 is connected to the plate member 16 forming the back plate 18 . The first connected member 32 integrally connects the plurality of plate members 16 forming the back plate 18 . The first connected member 32 is connected to the lower surface of each plate member 16 . The pair of first connected members 32 extend in the front-rear direction and are arranged at intervals in the left-right direction.

The first movable member 33 is connected to the back support plate 18 , and in this embodiment, is connected to the back support plate 18 via the first connected member 32 . The first movable member 33 has a movable rod portion 35 and a movable plate portion 36 . The movable rod portion 35 is located on the leg side F with respect to the back support plate 18 , and is arranged on the stand main body 24 . The movable rod portion 35 extends linearly in the left-right direction, and is spanned over the pair of vertical members 30 . The movable rod portion 35 is connected to the end portion of the leg side F of the first connected member 32 .

A pair of movable plate portions 36 are provided so as to sandwich the movable rod portion 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 in the left-right direction of the first movable member 33 . The left-right direction edge part of the 1st movable member 33 is exposed to the outer side of the left-right direction. The upper end portion of the movable plate portion 36 protrudes upward with respect to the bed surface 15 .

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

A pair of fixed plate parts 38 are provided so as to sandwich the fixed rod part 37 from both sides in the left-right direction. Each fixing plate portion 38 is connected to each end portion 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 in the left-right direction of the first fixing member 34 . Each end portion in the left-right direction of the first fixing member 34 is exposed to the outside in the left-right direction. The upper end portion of the fixed plate portion 38 protrudes upward with respect to the bed surface 15 .

The first fixing member 34 is arranged inside the pair of left and right movable plate portions 36 , and the fixed plate portion 38 is adjacent to the movable plate portion 36 from the inner side in the left-right direction. The first fixed member 34 is coupled to the first movable member 33 via the first rotating shaft 22 . The first rotating shaft 22 is located above the bed surface 15 and extends in the left-right direction. A pair of left and right are coaxially arranged on the first rotating shaft 22 , and the upper end portion of the movable plate portion 36 and the upper end portion of the fixed plate portion 38 are connected to each other.

Moreover, by positioning the first rotating shaft 22 above the bed surface 15 in this way, the height position of the first rotating shaft 22 is close to the height position of the user's greater trochanter on the bed surface 15 . Thereby, when the back support plate 18 rotates about the 1st rotation axis 22, the pressure feeling of a user can be reduced.

The second rotation mechanism 26 holds the leg rests 19 rotatably around the second rotation axis 23 . The second rotating mechanism 26 bends the leg rest 19 by rotating the leg rest 19 around the second rotating shaft 23 so that the portion of the leg rest 19 located between the knee rest 20 and the foot rest 21 faces upward. protrude. At this time, the end of the leg side F of the footrest 21 moves to the head side H on the stand main body 24 in a state where the end of the head side H of the knee rest plate 20 is fixed in the front-rear direction.

The second rotation mechanism 26 includes a second connected member 39 , a second movable member 40 , and a second fixed member 41 . The second connected member 39 is connected to the plate member 16 forming the leg rest 19 . The second connected member 39 integrally connects the plurality of plate members 16 forming the leg rest 19 . The second connected member 39 is connected to the lower surface of each plate member 16 . The pair of second connected members 39 extend in the front-rear direction and are arranged at intervals in the left-right direction.

Each second connected member 39 is divided into two parts, a head-side divided portion 42 and a leg-side divided portion 43 , along the front-rear direction. The head-side divided portion 42 is connected to the plate member 16 forming the knee rest plate 20 , and the leg-side divided portion 43 is connected to the plate member 16 forming the foot rest plate 21 . The head-side divided portion 42 and the leg-side divided portion 43 are rotatably connected via a third rotating shaft 44 extending in the left-right direction.

The second movable member 40 is connected to the leg rest 19 , and in this embodiment, is connected to the leg rest 19 via the second connected member 39 . The second movable member 40 is located on the head side H with respect to the second connected member 39 . The second movable member 40 is connected to the end portion of the head side H of the second connected member 39 . Moreover, the edge part of the leg side F of the 2nd to-be-connected member 39 is set as a free end.

The second fixing member 41 is connected to the gantry main body 24 , and is connected to the gantry main body 24 via the first fixing member 34 in this embodiment. The second fixing member 41 protrudes toward the leg side F from the first fixing member 34 . The pair of second fixing members 41 are arranged at intervals along the left-right direction. The second fixed member 41 is connected to the second movable member 40 via the second rotating shaft 23 . The second rotating shaft 23 is located below the bed surface 15 and extends in the left-right direction. A pair of left and right are arranged coaxially with respect to the 2nd rotating shaft 23. As shown in FIG.

In the support stand 12 , the back support plate 18 is connected to the stand body 24 via the first turning mechanism 25 , and the leg rests 19 are connected to the stand body 24 via the second turning mechanism 26 . The first rotating mechanism 25 and the second rotating mechanism 26 rotate the back support plate 18 and the leg support plate 19 from the above-mentioned standard state, so that the bed 11 becomes a typical stand-up and leg-lifting (knee-lifting) as shown in FIG. 5 . status of use. When the bed 11 is changed from the standard state to the use state, the user can be effectively prevented from being displaced with respect to the bed apparatus 10 by performing a leg lift before getting up.

As shown in FIGS. 1 to 5 , the plate 13 is fixed to the support stand 12 and stands upward with respect to the bed surface 15 . The plates 13 are provided in a pair of front and rear, and stand up from the ends on both sides of the frame body 24 in the front-rear direction.

The drive mechanism 14 rotates the back support plate 18 and the leg support plate 19 (movable support plates) around the rotation shafts 22 and 23 . The drive mechanism 14 includes a first drive mechanism 14a that rotates the back support plate 18 and a second drive mechanism 14b that rotates the leg support plate 19 .

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

Each drive mechanism 14 has a telescopic portion 46 and a drive portion 47 . The expansion-contraction part 46 is extended in the front-rear direction, and can be extended and contracted in the front-rear direction. The drive part 47 expands and contracts the expansion and contraction part 46 based on the power supplied from the outside.

Each drive mechanism 14 is connected to the stand main body 24 and the back pallet 18 or the leg pallet 19 which are movable pallets, respectively. Each drive mechanism 14 is connected to the back support plate 18 or the leg support plate 19 , and the frame body 24 via a pair of front and rear link mechanisms 48 and 49 provided on the support frame 12 . The pair of front and rear link mechanisms 48 and 49 converts the extension and contraction in the front-rear direction of the telescopic portion 46 of each drive mechanism 14 into the rotation of the back support plate 18 or the leg support plate 19 about the rotation shafts 22 and 23 .

The link mechanism 48a provided on the head side H of the first drive mechanism 14a connects the first drive mechanism 14a and the first movable member 33, and the link mechanism 49a provided on the leg side F of the first drive mechanism 14a connects the first drive mechanism 14a and the first movable member 33 together. The drive mechanism 14a and the gantry main body 24 are connected. These two link mechanisms 48a and 49a convert the extension of the first drive mechanism 14a into the upward rotation of the back support plate 18 around the first rotation axis 22 .

In addition, a link mechanism 48b provided on the head side H of the second drive mechanism 14b connects the second drive mechanism 14b and the second movable member 40, and a link mechanism 49b provided on the leg side F of the second drive mechanism 14b The second drive mechanism 14b and the gantry main body 24 are connected. The two link mechanisms 48b and 49b convert the contraction of the second drive mechanism 14b into the upward rotation of the leg rest 19 around the second rotation axis 23 .

In addition, in the example shown in figure, in each drive mechanism 14, the drive part 47 is a manual drive part which uses a human operation as a power source, and each drive mechanism 14 becomes a manual drive mechanism 14. The drive part 47 is arrange|positioned at the edge part of the leg side F of the expansion-contraction part 46, and protrudes from the stand main body 24 toward the leg side F along the front-back direction. Thereby, the operability when the back support plate 18 and the leg support plate 19 are rotated by the drive unit 47 is ensured. On the other hand, in a state in which the drive unit 47 is not operated (a normal use state of the bed apparatus 10 ), for example, the drive unit 47 is folded from the leg side F to the head side H by bending the drive unit 47 , and the drive unit 47 is arranged in FIG. The position P shown by the two-dot chain line in 1 is accommodated in the arrangement space 45, and it can suppress that it becomes a hindrance to a medical practitioner or the like.

As the drive unit 47 , an electric drive unit using electric power as a power source may be used instead of human power.

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

The plate member 16 has the same shape as that shown in FIG. 7 when viewed from the side and when viewed in a vertical cross-section at any position in the longitudinal direction. That is, the plate member 16 has the plate main body 50 and the plurality of reinforcing ribs 51 . The plate body 50 forms the outer surface of the plate member 16 . The panel main body 50 is formed in an inverted isosceles trapezoid shape in a front view seen from the left-right direction. The lower surface of the panel main body 50 is smaller than the upper surface of the panel main body 50 in the front-rear direction. That is, when the panel body 50 is viewed from the left-right direction, the width dimension of the lower surface of the panel body 50 is shorter than the width dimension of the upper surface of the panel body 50 . The said lower surface becomes the attachment surface 16a which faces the to-be-connected members 32 and 39 (the 1st to-be-connected member 32 and the 2nd to-be-connected member 39) of the plate member 16. As shown in FIG. The board main body 50 is formed in the hollow which opens on both sides in the left-right direction.

The reinforcement rib 51 is provided in the panel main body 50 over the entire length along the left-right direction of the panel main body 50 . The reinforcing rib 51 connects the upper surface and the lower surface of the panel main body 50 . The reinforcing rib 51 is formed in a plate shape extending linearly along the vertical direction in a front view viewed from the left-right direction.

A connection unit 52 is provided between the plate member 16 and the connected members 32 and 39 . The plate members 16 of various forms with different lengths can be connected to the common connected members 32 and 39 by the connecting unit 52 . Regardless of the length of the plate member 16 , the connecting unit 52 can connect the plate member 16 to the connected members 32 and 39 of the same form. The connection unit 52 can connect the connected members 32 and 39 to the plate member 16 having a different length without changing the form of the connected members 32 and 39 .

In addition, in the example shown in the figure, the screw member 53 is used as the connection unit 52 . The screw member 53 is inserted upward through the connected members 32 and 39 from below the connected members 32 and 39 . The screw member 53 integrally penetrates the connected members 32 and 39 and the lower surface (the mounting surface 16 a ) of the plate main body 50 in the vertical direction. The screw member 53 is screwed into a through hole formed in the mounting surface 16a. That is, the screw member 53 is screwed and fixed in the through hole of the attachment surface 16a. The screw member 53 connects the plate member 16 and the connected members 32 and 39 by screwing. The screw members 53 are screwed together in a state of being inserted into the mounting surface 16a, thereby forming screw members (screws) for connecting the plate member 16 and the connected members 32 and 39 to each other. In addition, as the connection unit 52 , a rivet (not shown) may be used instead of the screw member 53 . In addition, a plurality of (two or more) coupling units 52 (screw members 53 ) may be provided for each plate member 16 so as to fix a plurality of locations in the longitudinal direction of the plate member 16 . Further, as the screw member 53, a self-tapping screw may be used.

In addition, it is preferable to set the position where the connection unit 52 (screw member 53 ) is provided to a position avoiding the reinforcing rib 51 , that is, a position between the reinforcing ribs 51 as indicated by the reference numeral S in FIG. 7 . Furthermore, the number of the connection units 52 (screw members 53 ) may be provided at one location in the left-right direction of the sheet of FIG. 7 , or may be provided at a plurality of locations. For example, as shown by the code|symbol 53a in FIG. 7, you may provide two places in the front-back direction of the bed apparatus 10.

Next, the manufacturing method of the said bed apparatus 10 is demonstrated.

First, the width, which is the size of the bed surface 15 in the left-right direction, is determined. In the bed apparatus 10 of the present embodiment, the form in which the width W1 of the bed surface 15 is narrow as shown in FIG. 8A and the form in which the width W2 of the bed surface 15 is wide as shown in FIG. 8B can be formed. any form.

It is manufactured by extruding a long member as the plate member 16 . At this time, the elongated member is extrusion-molded so as to have a dimension longer than the above-mentioned width. Then, the elongated member is cut along the longitudinal direction of the elongated member according to the width dimension of the bed surface 15 (the bed 11 ) to form the plate member 16 . In one bed device 10 , a plurality of equal lengths can be used. plate member 16 . In addition, the width dimension of the plate member 16 may be different from the width dimension of the other plate members 16 as necessary and depending on the installation location.

Furthermore, the support stand 12 is formed. At this time, regardless of the width dimension of the bed surface 15 , the structure of the support stand 12 other than the movable rod portion 35 and the fixed rod portion 37 adopts a common form. The movable rod portion 35 and the fixed rod portion 37 have a form in which the size in the left-right direction is adjusted according to the width dimension of the bed surface 15 . In addition, the plate 13 and the drive mechanism 14 are formed. Regardless of the width dimension of the bed surface 15, the plate 13 and the drive mechanism 14 can take a common form. In addition, the board 13 can be changed according to the width dimension of the bed surface 15 , for example, a wide board can be adopted according to the width dimension of the bed surface 15 .

Then, the plate member 16 , the plate 13 and the drive mechanism 14 are assembled to the support stand 12 . At this time, the plate member 16 is connected to the connected members 32 and 39 via the connection unit 52 .

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

As described above, according to the bed apparatus 10 of the present embodiment, the connection unit 52 is provided between the plate member 16 and the connected members 32 and 39 . Thereby, even the plate members 16 whose lengths are different in the left-right direction can be attached to the support frame 12 having the general-purpose connected members 32 and 39 via the connection unit 52 . Therefore, the bed 11 of various sizes can be adopted while suppressing the change of the form of the support stand 12 .

In addition, since the connection unit 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 size and shape of the plate member 16 viewed in the cross section perpendicular to the left-right direction is the same at any position along the entire length of the left-right direction. Thereby, even if it is any plate member 16 with a different length, the form of the part connected with the connection member 32 and 39 among the plate member 16 can be made equal. Therefore, even the plate members 16 with different lengths can be attached to the support frame 12 having the general-purpose connected members 32 and 39, and the beds 11 of various sizes can be adopted while suppressing the change of the form of the support frame 12.

In addition, since the aforementioned dimensions and shapes of the plate member 16 are the same at any position along the entire length in the left-right direction, the plate member 16 can be easily formed by extrusion molding in which the molding material is extruded in the left-right direction. .

Moreover, the cover member 17 is provided in the edge part of the left-right direction of the plate member 16. As shown in FIG. Thereby, for example, even when the plate member 16 is opened to the outside in the left-right direction as in the present embodiment, the cover member 17 can cover the end of the plate member 16 from the outside in the left-right direction. Therefore, by sealing the end portion of the plate member 16 with the cover member 17, it is possible to reliably prevent foreign matter or the like from entering the plate member 16 from the outside.

In addition, the plurality of plate members 16 form the back support plate 18 and the leg support plate 19 . Thereby, even in the bed apparatus 10 having the stand-up function and the leg lift function as in the present embodiment, the bed 11 of various sizes can be adopted while suppressing the change of the form of the support frame 12 .

In addition, the protection scope of this invention is not limited only to the said embodiment, Various changes can be added in the range which does not deviate from the summary of this invention.

For example, as the plate member 16 and the connection unit 52, the structures shown in FIGS. 9A and 9B can also be employed.

As shown in FIG. 9A , the plate member 16 is provided with a plurality of (for example, three) groove portions 54 formed continuously in the left-right direction (the plate longitudinal direction) in parallel with each other. These groove portions 54 traverse the mounting surface 16a in the left-right direction. More specifically, when the plate member 16 is viewed from the side and when the plate member 16 is viewed in a vertical cross-section at any position in the longitudinal direction of the plate member 16, each of the groove portions 54 has the same characteristics as shown in FIG. 9A . the same shape as shown. Each groove portion 54 is recessed upward from the mounting surface 16a. A widened portion 55 is provided at an intermediate portion in the vertical direction of the groove portion 54 . The widened portion 55 widens in the front-rear direction with respect to the other portions of the groove portion 54 .

The shape of the groove portion 54 will be described in more detail with reference to FIG. 9B . Each concave portion 54 is formed by the bottom wall 50a of the board main body 50, a pair of mutually parallel first wall bodies 54a standing vertically upward from the upper surface of the bottom wall 50a, A pair of second wall bodies 54b whose upper edges approach each other, a pair of mutually parallel third wall bodies 54c standing vertically upward from the inner edge of these second wall bodies 54b, and these third walls The sectional closed space divided by the fourth wall body 54d in which the upper edges of the body 54c are connected to each other.

In addition, in the bottom wall 50a, a cutout 50a1 for connecting the inside and the outside of the groove portion 54 is formed. The notch 50a1 is continuously formed over the entire length of the board main body 50 . The widening portion 55 is defined by a bottom wall 50a, a pair of first wall bodies 54a, and a pair of second wall bodies 54b, and accommodates a nut 57 slidably along the extending direction of the widening portion 55 .

When the nut 57 is inserted into the widening portion 55, the upper surface of the bottom wall 50a and the lower surfaces of the pair of second wall bodies 54b restrict the nut 57 from shaking up and down or obliquely. And the rotation when the nut 57 is displaced along the left-right direction of the paper surface of FIG. 9B or when the later-described bolt 56 is screwed together is restricted by the inner surfaces of the pair of first wall bodies 54a. Therefore, according to the widened portion 55 having the above-mentioned shape, the sliding movement of the nut 57 can be allowed, and the displacement in the front-rear direction and the rotation at the time of bolting can be restricted.

Furthermore, the distal end (upper end) of the screwed bolt 56 is accommodated in the space defined by the pair of third wall body 54c and fourth wall body 54d. The top end (upper end) does not interfere with the pair of the third wall body 54c and the fourth wall body 54d, so that the bolt 56 can be securely screwed to the end.

In this modification, the lower end of the said reinforcement rib 51 is integrally connected to the upper surface position of the width direction center of the 4th wall body 54d. According to this structure, the combined structure of the pair of first wall bodies 54a, the pair of second wall bodies 54b, the pair of third wall bodies 54c, and the fourth wall body 54d is composed of the bottom wall 50a and the upper wall 50b ( Fig. 9A) A structure supported from above and below. Therefore, it is possible to obtain a stress dispersing effect when an external force acts on the panel main body 50, and it is possible to prevent the breakage of the combined structure.

As at least a part of the connection unit 52 , in the present modification, the nut 57 is used, and the nut 57 is arranged in the groove portion 54 in a state of being locked in the groove portion 54 as described above. That is, in this modification, the bolt 56 (threaded member) and the nut 57 that are screwed to each other are used as the connection unit 52 . In the illustrated example, the nut 57 is arranged in the widened portion 55 . The size in the front-rear direction of the nut 57 is larger than the size in the front-rear direction of the portion of the groove portion 54 other than the widened portion 55 . Thereby, the nut 57 is restricted from being detached downward from the inside of the widening portion 55 . The bolt 56 is inserted into the groove portion 54 through the connected members 32 and 39 from below the connected members 32 and 39 , and is screwed with the nut 57 . Further, a pair of flat surfaces parallel to each other among the six surfaces constituting the outer surface of the nut 57 are in contact with the inner surface of the widening portion 55 . Thereby, when the bolt 56 and the nut 57 are screwed together, the rotation of the nut 57 is restricted by the inner surface of the widening portion 55 . As a result, the rotation of the nut 57 can be stopped and the bolt 56 can be securely screwed together without using a special tool. By adopting such a configuration, even if the number of the connection units 52 to be installed is increased, the fixing of the plate member 16 does not require a significant increase in labor and time. In addition, loosening of the bolt 56 caused by the idling of the nut 57 can also be reliably suppressed.

Moreover, in the case of the said structure, the groove part 54 traverses the attachment surface 16a along the left-right direction. Therefore, regardless of the length of the plate member 16 , the connection unit 52 can be arranged at a desired position along the left-right direction of the plate member 16 . That is, depending on the attachment position of each plate member 16 , the connection member 52 does not interfere with other members, or it has a structure that can be flexibly changed in consideration of workability at the time of attachment of the connection unit 52 .

In addition, in the example shown in figure, the nut 57 is arrange|positioned in the widened part 55, but the head part of the bolt 56 can also be arrange|positioned in the widened part 55 etc. instead. In this case, a pair of flat surfaces parallel to each other among the six surfaces constituting the outer surface of the head portion of the bolt 56 also touch the inner surface of the widening portion 55, so that the bolt 56 can be rotated without using a special tool. Stop and screw the nut 57 securely.

In the said embodiment, although the drive mechanism 14 is arrange|positioned below the leg rest 19, this invention is not limited to this. For example, the drive mechanism 14 may be arranged below the backing plate 18 .

A lumbar support may be arranged between the back support 18 and the leg support 19 . As the lumbar support, a structure fixed to the support stand 12 can be employed.

In the above-described embodiment, a so-called double crank (2ACT) movable backrest bed is used in which both the back support plate 18 and the leg support plate 19 are movable support plates that rotate around the rotation shafts 22 and 23 . The invention is not limited to this. For example, it is also possible to use a single-crank (1ACT) movable back bed in which the back support plate 18 or the leg support plate 19 is rotated about the rotation axes 22 and 23 . In this case, the stand-up function of making the back pallet 18 a movable pallet can be preferentially mounted on the bed apparatus 10 . That is, the present invention can adopt a structure in which at least one of the back support plate 18 and the leg support plate 19 is a movable support plate, and at least one of the back support plate 18 and the leg support plate 19 can be configured as a movable support plate. It is the structure of movable pallet.

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

In the above-described embodiment, the plate member 16 is formed as a long strip extending in the left-right direction, and a plurality of plate members 16 are arranged in parallel in the front-rear direction, but the present invention is not limited to this. For example, the plate member 16 may be formed as a long strip extending in the front-rear direction, and a plurality of plate members 16 may be arranged in parallel in the left-right direction.

In the above-described embodiment, when forming the bed unit 10 , when forming the support stand 12 , the movable rod portion 35 and the fixed rod portion 37 are dimensioned in the left-right direction according to the width dimension of the bed surface 15 (width). The form of adjustment, but the present invention is not limited to this. For example, the movable rod part 35 and the fixed rod part 37 are formed to have a slightly large width so as to be able to cope with the bed 11 of all widths, and the support frame 12 can be formed in exactly the same form regardless of the width of the bed 11 .

In addition, the constituent elements in the above-described embodiments can be appropriately replaced with well-known constituent elements within the scope of not departing from the gist of the present invention, and the above-described modified examples may be appropriately combined.

Claims (6)

1. A bed device, characterized in that it comprises: a bed having a plurality of juxtaposed elongated board members; and A support stand supports the bed, and includes a stand main body and a connected member that rotates about a rotation axis positioned above the stand main body, and the connected member is connected to a plurality of the plate members , A groove portion is provided on the lower surface of the plate member, and the groove portion is formed along the longitudinal direction of the plate member, The groove portion traverses the lower surface along the length direction, A connecting unit for connecting each of the plate members and the connected member is provided between each of the plate members and the connected member, The connecting unit includes a nut and a bolt, the nut is arranged in the groove portion and is engaged with the groove portion, the bolt is inserted into the groove portion through the connected member, and is connected with the groove portion. Screw on the nut. 2. The bed apparatus according to claim 1, characterized in that, The support stand supports a plurality of the plate members having the same length as each other, The connecting unit can commonly connect the plate members of various forms having different lengths with the connected member. 3. The bed apparatus of claim 1, wherein The plate member has a plate main body formed in a hollow shape and the groove portion is provided on a lower surface of the plate main body, and a reinforcing rib connecting the upper surface and the lower surface of the plate main body. surface connected, The reinforcing rib connects the portion of the lower surface of the panel main body where the groove portion is provided and the upper surface of the panel main body. 4. The bed apparatus according to any one of claims 1 to 3, wherein When the plate member is viewed in a cross section perpendicular to the longitudinal direction of the plate member, the size and shape of the plate member are the same at any position along the entire length of the plate member in the longitudinal direction. of. 5. The bed apparatus of claim 1, wherein: A cover member is provided at an end portion in the longitudinal direction of each of the plate members. 6. The bed apparatus of claim 1, wherein Each of the plate members forms a back plate that is rotatably supported around the rotation shaft extending in the left-right direction.

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