JP6595264B2 - Bed equipment - Google Patents

Description

  The present invention relates to a bed apparatus.

  Conventionally, for example, a bed apparatus as shown in Patent Document 1 below is known. The bed apparatus includes a bed having a back bottom and a leg bottom, a support frame that rotatably supports the back bottom and the leg bottom around a rotation axis, and a drive for rotating the back bottom and the leg bottom around the rotation axis. And a mechanism.

JP 2006-340962 A

By the way, the conventional bed apparatus employs an electric drive mechanism having an electric drive unit using electric power as a power source as a drive mechanism. Since a couch device having such an electric drive mechanism is highly convenient and expensive, an inexpensive couch device is also desired.
Therefore, it is conceivable to employ a manual drive mechanism that employs a manual drive unit that uses human operation as a power source as the drive mechanism. In this case, although the bed apparatus itself can be made inexpensive, if a bed apparatus having an electric drive mechanism is desired in the future, the entire bed apparatus must be replaced, which increases the overall cost. There is a fear.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a bed apparatus capable of switching between a manual drive type and an electric drive mechanism while suppressing cost.

In order to solve the above problems, the present invention proposes the following means.
(1) A bed apparatus according to the present invention includes a bed having a back bottom and a leg bottom; and a support that rotatably supports a movable bottom that is at least one of the back bottom and the leg bottom about a rotation axis. A gantry; a drive mechanism for rotating the movable bottom about the rotation axis; a receiving member to which both drive mechanisms of the manual drive mechanism or the electric drive mechanism as the drive mechanism are detachably attached; ; comprises. The support frame includes a head-side lateral member, a leg-side lateral member, a head-side leg member attached to the head-side lateral member, and a leg side attached to the leg-side lateral member. Leg members. The distance between the leg-side end portion of the support frame and the leg-side leg member is shorter than the distance between the head-side end portion of the support frame and the head-side leg member. The receiving member is attached to the lateral member on the leg side.

(2) In the bed apparatus according to (1) above, a configuration in which a manual drive mechanism as the drive mechanism or both drive mechanisms of an electric drive mechanism is detachable as the support frame is adopted. Good.

  In these inventions, the drive mechanism is detachably attached to the support frame. Therefore, when the drive mechanism is switched from the manual type to the electric type, the electric type drive mechanism may be attached to the support base after the manual type drive mechanism is detached from the support base without replacing the entire bed apparatus. Thereby, it is possible to switch between a manual drive type and an electric drive mechanism while reducing costs.

(3) In the bed apparatus described in (2) above, a configuration in which a receiving member to which both the drive mechanisms are fixed in common is provided on the support frame may be adopted.

  In this case, since the support frame is provided with a receiving member to which the manual drive mechanism and the electric drive mechanism are commonly attached, the manual drive mechanism and the electric drive mechanism can be easily switched. Can do.

(4) In the bed apparatus according to (3) above, a configuration in which the receiving member is accessible from the outside of the bed apparatus may be employed.

  In this case, since the receiving member can be accessed from the outside of the bed apparatus, the driving mechanism can be attached and detached by accessing the receiving member from outside while the bed apparatus is installed. In addition to the customer, the drive mechanism can be easily replaced.

(5) In the bed apparatus according to the above (3) or (4), the receiving member is directly attached to one of the two drive mechanisms and is attached to the other via a joint member. May be.

  In this case, the receiving member is directly attached to one of the manual drive mechanism and the electric drive mechanism, and is attached to the other via the joint member. Therefore, even if there is a difference in size between the manual drive mechanism and the electric drive mechanism, the difference in size can be absorbed by the joint member. Thereby, the freedom degree of the magnitude | size of a drive mechanism can be raised and the breadth of selection of a drive mechanism can be expanded.

(6) In the bed apparatus according to any one of (1) to (5), a configuration in which the drive mechanism is disposed below the leg bottom may be employed.

  In this case, the drive mechanism is disposed below the leg bottom. Therefore, for example, when a manual drive mechanism is attached to the support frame, the operation of the drive mechanism can be easily performed from the leg side with respect to the bed apparatus. Thereby, operability can be improved. In addition, for example, when the electric drive mechanism is attached to the support base, the electric drive unit using electric power as a power source can be arranged below the end located on the side opposite to the back bottom in the leg bottom. it can. Therefore, the electric drive unit that can be a source of sound and vibration can be easily separated from the user's head on the bed.

  According to the present invention, it is possible to switch between a manual drive type and an electric drive mechanism while reducing costs.

It is the side view which looked at the bed apparatus which concerns on one Embodiment of this invention from the left-right direction. It is a top view of the bed apparatus shown in FIG. It is a bottom view of the bed apparatus shown in FIG. It is the side view which looked at the bed apparatus shown in FIG. 1 from the leg side. It is a perspective view which shows the state which rotated the back bottom and leg bottom which comprise the bed apparatus shown in FIG. It is sectional drawing orthogonal to the left-right direction of the bed apparatus shown in FIG. 1, Comprising: It is a figure which shows a manual type 1st drive mechanism. It is sectional drawing orthogonal to the left-right direction of the bed apparatus shown in FIG. 1, Comprising: It is a figure which shows a manual 2nd drive mechanism. FIG. 2 is a bottom view of the bed apparatus shown in FIG. 1, showing a state where an electric drive mechanism is mounted. It is sectional drawing orthogonal to the left-right direction of the bed apparatus shown in FIG. 1, Comprising: It is a figure which shows the state with which the electrically driven drive mechanism is mounted | worn.

  A bed apparatus 10 according to an embodiment of the present invention will be described below with reference to the drawings. The bed apparatus 10 can be used in a medical environment (including a care environment), for example. In FIGS. 1 to 9, an arrow H indicates a heading direction when the person (user) sleeps, and an arrow F indicates a leging direction when the person sleeps. In the following description, the horizontal direction orthogonal to the front-rear direction, which is the direction of arrows H and F, may be referred to as the left-right direction.

As shown in FIGS. 1 to 5, the bed apparatus 10 includes a bed 11, a support frame 12, a board 13, and a drive mechanism 14. In FIG. 5, the drive mechanism 14 is not shown.
The bed 11 is long and includes a panel member 16 that forms a bed surface 15 by being arranged in parallel. Each panel member 16 has the same shape and the same size. Each panel member 16 is formed in a long plate shape extending in the left-right direction (panel longitudinal direction in which the panel member extends), and the front and back surfaces of each panel member 16 are directed in the vertical direction. A plurality of panel members 16 are arranged in the front-rear direction. Each panel member 16 is in the same position in both the vertical direction and the horizontal direction in the standard state before the bed 11 is rotated by a drive mechanism 14 such as raising the back or knees, for example, with undulations. Arranged on the same plane.

A pair of left and right cover members 17 are provided at both left and right ends of each panel member 16. The cover member 17 is attached to each panel member 16 from the outside in the left-right direction. The cover member 17 is formed in a semi-elliptical shape that protrudes outward in the left-right direction.
The upper surfaces of the plurality of panel members 16 and the plurality of cover members 17 form the bed surface 15 described above. The bed surface 15 is an orthogonal surface orthogonal to the vertical direction in the standard state described above. The bed surface 15 is formed in a rectangular shape longer in the front-rear direction than in the left-right direction in plan view. The longitudinal direction of the bed surface 15 is the front-rear direction, and the lateral direction of the bed surface 15 is the left-right direction. A mattress M is disposed on the bed surface 15.

  The plurality of panel members 16 are partitioned into a plurality of groups in the front-rear direction. The plurality of panel members 16 are grouped in the order of a back bottom 18 and a leg bottom 19 from the head side H to the leg side F. Further, the leg bottoms 19 are grouped in the order of the knee bottom 20 and the foot bottom 21 from the head side H to the leg side F. The back bottom 18 corresponds to the back on the bed surface 15, and the leg bottom 19 corresponds to the leg from the waist on the bed surface 15. The knee bottom 20 corresponds to the knee from the waist on the bed surface 15, and the foot bottom 21 corresponds to the foot from the knee on the bed surface 15. The upper surface of the back bottom 18 and the upper surfaces of the leg bottoms 19 (the knee bottom 20 and the leg bottom 19) each form a part of the bed surface 15.

The support frame 12 supports the bed 11. In the present embodiment, the support base 12 supports the back bottom 18 and the leg bottom 19 (movable bottom) so as to be rotatable about the rotation shafts 22 and 23, and the bed apparatus 10 is a so-called gatch bet. Yes. The support frame 12 includes a frame body 24, a first rotation mechanism 25, and a second rotation mechanism 26.
The gantry body 24 receives loads of the bed 11 and the users on the bed 11. The gantry body 24 includes a main frame 27 having a rectangular shape in plan view, and leg members 28 extending downward from the main frame 27.

  The main frame 27 (the gantry body 24) is smaller than the bed 11 (the bed surface 15) in the left-right direction, and the width of the main frame 27 (the size in the left-right direction) is narrower than the width of the bed 11. The central portion in the left-right direction of the main frame 27 is disposed at the same position in the left-right direction as the central portion in the left-right direction of the bed 11. The bed 11 protrudes from the main frame 27 on both sides in the left-right direction. The main frame 27 can support both left and right ends 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 horizontal members 31 extending in the left-right direction. The pair of front and rear transverse members 31 connect the pair of left and right longitudinal members 30 in the left-right direction. The end of the horizontal member 31 in the left-right direction is connected to the vertical member 30. An end portion in the front-rear direction of the vertical member 30 protrudes outward in the front-rear direction from the horizontal member 31.
A plurality of leg members 28 are provided, and in the present embodiment, a pair of left and right leg members 28 are arranged at intervals in the front-rear direction. The leg member 28 is disposed 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 the leg member 28.

  The first rotation mechanism 25 holds the back bottom 18 so as to be rotatable around the first rotation shaft 22. The first rotation mechanism 25 tilts the back bottom 18 with respect to the horizontal plane while raising the head side H of the back bottom 18 by swinging the back bottom 18 around the first rotation shaft 22. The first rotation mechanism 25 includes a first connected member 32, a first movable member 33, and a first fixed member 34.

  The panel member 16 that forms the back bottom 18 is connected to the first connected member 32. The first connected member 32 integrally connects the plurality of panel members 16 forming the back bottom 18. The first connected member 32 is connected to the lower surface of each panel member 16. A pair of the first connected members 32 are disposed in the front-rear direction and spaced apart in the left-right direction.

  The first movable member 33 is connected to the back bottom 18. In this embodiment, the first movable member 33 is connected to the back bottom 18 via the first connected member 32. The first movable member 33 includes a movable bar portion 35 and a movable plate portion 36. The movable bar portion 35 is located on the leg side F with respect to the back bottom 18 and is disposed on the gantry body 24. The movable bar portion 35 extends linearly in the left-right direction, and is laid on the pair of vertical members 30. The end of the leg side F of the first connected member 32 is connected to the movable bar portion 35.

  A pair of movable plate portions 36 are provided by sandwiching the movable bar portion 35 from both sides in the left-right direction. Each movable plate portion 36 is connected to an end portion in the left-right direction of the movable bar portion 35 from the outer side 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. An end portion in the left-right direction of the first movable member 33 is exposed to the outside in the left-right direction. The upper end portion of the movable plate portion 36 projects upward from the bed surface 15.

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

  A pair of fixed plate portions 38 are provided by sandwiching the fixed bar portion 37 from both sides in the left-right direction. Each fixing plate portion 38 is connected to the end portion in the left-right direction of the fixing bar portion 37 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. An 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 from the bed surface 15.

The first fixed member 34 is disposed 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 inside in the left-right direction. The first fixed member 34 is connected to the first movable member 33 via the first rotation shaft 22. The first rotation shaft 22 is located above the bed surface 15 and extends in the left-right direction. The first rotating shaft 22 is disposed in a pair of left and right, coaxially, and connects the upper end portions of the movable plate portion 36 and the fixed plate portion 38 to each other.
In addition, the 1st rotation axis | shaft 22 approaches the greater trochanter of the user on the bed surface 15 because the 1st rotation axis | shaft 22 is located above the bed surface 15 in this way. Thereby, when the back bottom 18 rotates around the first rotation shaft 22, the user's feeling of pressure is reduced.

  The second rotation mechanism 26 holds the leg bottom 19 so as to be rotatable around the second rotation shaft 23. The second rotation mechanism 26 rotates the leg bottom 19 around the second rotation shaft 23 so that a portion of the leg bottom 19 located between the knee bottom 20 and the foot bottom 21 protrudes upward. The leg bottom 19 is bent so that At this time, the end on the leg side F of the foot bottom 21 moves to the head side H on the gantry body 24 in a state where the end on the head side H of the knee bottom 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 panel member 16 that forms the leg bottom 19 is connected to the second connected member 39. The second connected member 39 integrally connects the plurality of panel members 16 forming the leg bottom 19. The second connected member 39 is connected to the lower surface of each panel member 16. A pair of second connected members 39 are disposed in the front-rear direction and spaced apart in the left-right direction.

  Each of the second connected members 39 is divided into a head-side split part 42 and a leg-side split part 43 along the front-rear direction. The panel member 16 that forms the knee bottom 20 is connected to the head-side split portion 42, and the panel member 16 that forms the foot bottom 21 is connected to the leg-side split portion 43. The head-side split portion 42 and the leg-side split portion 43 are rotatably connected via a third rotary shaft 44 that extends in the left-right direction.

  The second movable member 40 is connected to the leg bottom 19. In this embodiment, the second movable member 40 is connected to the leg bottom 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 on the head side H of the second connected member 39. In addition, the edge part of the leg side F of the 2nd to-be-connected member 39 is made into the 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 the present embodiment. The second fixing member 41 protrudes from the first fixing member 34 toward the leg side F. A pair of second fixing members 41 are arranged at intervals in the left-right direction. The second fixed member 41 is connected to the second movable member 40 via the second rotation shaft 23. The second rotation shaft 23 is positioned below the bed surface 15 and extends in the left-right direction. The second rotating shaft 23 is disposed in a pair of left and right, coaxially.

  In the support frame 12, the back bottom 18 is connected to the frame body 24 via the first rotation mechanism 25, and the leg bottom 19 is connected to the frame body 24 via the second rotation mechanism 26. The first turning mechanism 25 and the second turning mechanism 26 turn the back bottom 18 and the leg bottom 19 from the above-described standard state, so that the bed 11 can be raised and lifted as shown in FIG. It becomes a typical use state with (knee-raised). When the bed 11 is changed from the standard state to the use state, the user can be effectively prevented from shifting with respect to the bed apparatus 10 by performing the leg raising prior to the back raising.

  As shown in FIGS. 1 to 5, the board 13 is fixed to the support frame 12 and rises above the bed surface 15. The board 13 is provided in a pair of front and rear, and rises from both ends of the gantry body 24 in the front-rear direction.

The drive mechanism 14 rotates the back bottom 18 and the leg bottom 19 (movable bottom) around the rotation shafts 22 and 23. The drive mechanism 14 includes a first drive mechanism 14 a that rotates the back bottom 18 and a second drive mechanism 14 b that rotates the leg bottom 19.
Each drive mechanism 14 is attached to the support frame 12. Each drive mechanism 14 is disposed below the leg bottom 19. Each drive mechanism 14 is arranged in an arrangement space 45 provided below the bed 11. The arrangement space 45 is provided between the main frame 27 and the leg member 28 in the gantry body 24. Each drive mechanism 14 is exposed through the arrangement space 45 toward the left side or the right side of the bed apparatus 10.

Each drive mechanism 14 includes an extendable part 46 and a drive part 47. The stretchable portion 46 extends in the front-rear direction and is freely stretchable in the front-rear direction. The drive unit 47 expands and contracts the expansion / contraction unit 46 based on power supplied from the outside.
Each drive mechanism 14 is connected to a back bottom 18 or a leg bottom 19 which is a movable bottom, and a gantry body 24, respectively. Each drive mechanism 14 is connected to the back bottom 18 or the leg bottom 19 and the gantry body 24 via a pair of front and rear link mechanisms 48 and 49 provided on the support gantry 12. The pair of front and rear link mechanisms 48 and 49 convert the expansion and contraction in the front-rear direction of the expansion / contraction part 46 of each drive mechanism 14 into rotation about the rotation shafts 22 and 23 of the back bottom 18 or the leg bottom 19.

A 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 a link mechanism 49a provided on the leg side F of the first drive mechanism 14a. Connects the first drive mechanism 14 a and the gantry body 24. Both the link mechanisms 48a and 49a convert the extension of the first drive mechanism 14a into the rotation of the back bottom 18 around the first rotation shaft 22 toward the upper side.
The 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 the link provided on the leg side F of the second drive mechanism 14b. The mechanism 49 b connects the second drive mechanism 14 b and the gantry body 24. Both the link mechanisms 48b and 49b convert the contraction of the second drive mechanism 14b into a rotation toward the upper side of the leg bottom 19 around the second rotation shaft 23.

Each link mechanism 48 on the head side H is formed by connecting a link member 50 provided on the support base 12 to each drive mechanism 14 via a pin member 51. Each link mechanism 49 on the leg side F is configured such that an attachment member 56 provided on the support base 12 is connected to each drive mechanism 14 via a pin member 51.
As shown in FIG. 6, the link member 50 of the link mechanism 48a extends in the front-rear direction. Of the link member 50, the end on the leg side F is directly and non-detachably connected to the first movable member 33, and the end on the head side H is detachable from the extendable portion 46 via the pin member 51. It is connected. The attachment member 56 of the link mechanism 49a extends in the vertical direction. Of the attachment member 56, the upper end portion is directly connected to the lateral member 31 so as not to be detached, and the lower end portion is detachably connected to the extendable portion 46 via the pin member 51.

  As shown in FIG. 7, the link member 50 of the link mechanism 48b extends in the front-rear direction. Of the link member 50, the end portion on the head side H is directly connected to the second movable member 40 so as not to be detached, and the end portion on the leg side F is detachably attached to the extendable portion 46 via the pin member 51. It is connected. The attachment member 56 of the link mechanism 49b extends in the vertical direction. Of the attachment member 56, the upper end portion is directly connected to the lateral member 31 so as not to be detached, and the lower end portion is detachably connected to the extendable portion 46 via the pin member 51.

  In each drive mechanism 14, the drive unit 47 is a manual drive unit that uses human operation as a power source, and each drive mechanism 14 is 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 toward the leg side F along the front-back direction from the mount main body 24. FIG. Thereby, when the back bottom 18 and the leg bottom 19 are rotated by the drive unit 47, operability is ensured. On the other hand, in a state where the drive unit 47 is not operated (a normal use state of the bed apparatus 10), for example, the drive unit 47 is bent from the leg side F toward the head side H, so that the drive unit 47 is 1 is stored in the arrangement space 45 at the position P indicated by a two-dot chain line, and it is possible to prevent the medical worker and the like from being obstructed.

Here, in this embodiment, each drive mechanism 14 is detachably attached to the support base 12. Then, after the manual drive mechanism 14 as shown in FIGS. 1 to 7 is removed from the support frame 12, the drive unit 47 as shown in FIGS. 8 and 9 supplies power to the support frame 12 as a power source. The electric drive mechanism 52 that is an electric drive unit can be detachably attached. That is, both the drive mechanisms 14 and 15 of the manual drive mechanism 14 or the electric drive mechanism 52 are detachable from the support frame 12.
Hereinafter, the manual drive mechanism 14 is simply referred to as the drive mechanism 14, the electric drive mechanism 52 is simply referred to as the drive mechanism 52, and both the drive mechanism 14 and the drive mechanism 52 are referred to as the drive mechanisms 14 and 52. There is a case.

  As shown in FIGS. 8 and 9, the drive mechanism 52 includes a first drive mechanism 52 a that rotates the back bottom 18 and a second drive mechanism that rotates the leg bottom 19, similar to the manual drive mechanism 14. 52b. Each drive mechanism 52 is connected to the back bottom 18 or the leg bottom 19 which is a movable bottom, and the gantry body 24, respectively. Each drive mechanism 52 is connected to the back bottom 18 or the leg bottom 19 and the gantry body 24 via a pair of front and rear link mechanisms 53 and 54 provided on the support gantry 12. The pair of front and rear link mechanisms 53 and 54 convert the expansion and contraction in the front-rear direction of the expansion and contraction portion 46 of each drive mechanism 14 into rotation about the rotation shafts 22 and 23 of the back bottom 18 or the leg bottom 19.

Of the link mechanisms 53 and 54, the link mechanisms 53a and 53b arranged on the head side H of each drive mechanism 52 have the same configuration as the link mechanisms 48a and 48b on the head side H with respect to the drive mechanism 14. A member 50 is connected to each drive mechanism 52 via a pin member 51.
On the other hand, of the link mechanisms 53 and 54, the link mechanisms 54 a and 54 b arranged on the leg side F of each drive mechanism 52 are the attachment members 56 and the pin members provided in the link mechanisms 49 a and 49 b on the leg side F with respect to the drive mechanism 14. In addition to 51, a joint member 55 is further provided. The joint member 55 is fastened to the attachment member 56 and protrudes forward from the attachment member 56. The joint member 55 is connected to the drive mechanism 52 via the pin member 51.

  In the bed apparatus 10, the link member 50 and the attachment member 56 form a receiving member to which the manual drive mechanism 14 and the electric drive mechanism 52 are attached in common. The attachment member 56 is directly attached to the manual drive mechanism 14 and attached to the electric drive mechanism 52 via a joint member 55.

  The link member 50 and the attachment member 56 can be accessed from the outside of the bed apparatus 10. The link member 50 and the attachment member 56 are exposed to the outside through the arrangement space 45 in a state where the bed apparatus 10 is installed. Therefore, when exchanging the drive mechanisms 14 and 52, the operator accesses the link member 50 and the attachment member 56 through the arrangement space 45 without moving the bed apparatus 10 from the state where the bed apparatus 10 is installed. Thus, the drive mechanisms 14 and 52 can be attached and detached.

  As described above, according to the bed apparatus 10 according to the present embodiment, the drive mechanisms 14 and 52 are detachably attached to the support frame 12. Therefore, when the drive mechanisms 14 and 52 are switched from the manual type to the electric type, the manual type drive mechanism 14 is detached from the support base 12 and the electric type drive mechanism 52 is supported without replacing the entire bed apparatus 10. What is necessary is just to attach to the mount frame 12. Thereby, it is possible to switch between the manual drive type and the electric drive mechanism 14 and 52 while reducing the cost.

Further, since the support base 12 is provided with the link member 50 and the attachment member 56 to which the manual drive mechanism 14 and the electric drive mechanism 52 are attached in common, the manual drive mechanism 14 and the electric drive mechanism 52 are provided. The drive mechanism 52 can be easily switched.
Further, since the link member 50 and the attachment member 56 can be accessed from the outside of the bed apparatus 10, the link member 50 and the attachment member 56 are accessed from the outside in a state in which the bed apparatus 10 is installed, and the drive mechanism. 14 and 52 can be attached and detached. For example, the drive mechanisms 14 and 52 can be easily replaced not only in a factory but also in a customer.

  In addition, the attachment member 56 is directly attached to one of the manual drive mechanism 14 and the electric drive mechanism 52, and is connected to the other one of the electric drive mechanism 52. It is attached via the member 55. Therefore, even if there is a difference in size between the manual drive mechanism 14 and the electric drive mechanism 52, the difference in size can be absorbed by the joint member 55. Thereby, the freedom degree of the magnitude | size of the drive mechanisms 14 and 52 can be raised, and the selection range of the drive mechanisms 14 and 52 can be expanded.

  Further, the drive mechanisms 14 and 52 are disposed below the leg bottom 19. Therefore, for example, when the manual drive mechanism 14 is attached to the support base 12, the operation of the drive mechanism 14 can be easily performed from the leg side F with respect to the bed apparatus 10. Thereby, operability can be improved. In addition, for example, when the electric drive mechanism 52 is attached to the support base 12, the electric drive unit that uses electric power as a power source is placed below the end of the leg bottom 19 that is opposite to the back bottom 18. Can be arranged. Therefore, the electric drive unit that can be a source of sound and vibration can be easily separated from the user's head on the bed 11.

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

  In the said embodiment, although the drive mechanisms 14 and 52 are arrange | positioned under the leg bottom 19, this invention is not limited to this. For example, the drive mechanisms 14 and 52 may be disposed below the back bottom 18.

  When the electric drive mechanism 52 is attached to the support base 12, the joint member 55 may not be provided. Further, the joint member 55 may be provided when the manual drive mechanism 14 is attached while the joint member 55 is not provided when the electric drive mechanism 52 is attached.

  In the embodiment, when the manual drive mechanism 14 is attached to the support frame 12, both the first drive mechanism 14a and the second drive mechanism 14b are the manual drive mechanism 14, and the support frame 12 is electrically driven. When mounting 52, both the first drive mechanism 52a and the second drive mechanism 52b are electrically driven drive mechanisms 52, but the present invention is not limited to this. For example, one of the first drive mechanism and the second drive mechanism may be the manual drive mechanism 14 and the other may be the electric drive mechanism 52.

  A waist bottom may be disposed between the back bottom 18 and the leg bottom 19. As the waist bottom, it is possible to adopt a configuration fixed to the support base 12.

  In the above-described embodiment, a so-called two-crank (2ACT) gatch bed in which both the back bottom 18 and the leg bottom 19 are movable bottoms that rotate around the rotation shafts 22 and 23 is employed. Not limited. For example, it is possible to employ a one-crank (1ACT) gatch bed in which the back bottom 18 or the leg bottom 19 rotates about the rotation shafts 22 and 23. In this case, the bed apparatus 10 can be preferentially mounted with a back raising function in which the back bottom 18 is movable. That is, the present invention can adopt a configuration in which at least one of the back bottom 18 and the leg bottom 19 is a movable bottom, and at least the back bottom 18 of the back bottom 18 and the leg bottom 19 is movable bottom. The configuration described above can be adopted.

  In addition, it is possible to appropriately replace the constituent elements in the embodiment with known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

DESCRIPTION OF SYMBOLS 10 Bed apparatus 11 Bed 12 Support stand 14, 52 Drive mechanism 18 Back bottom (movable bottom)
19 Leg bottom (movable bottom)
22, 23 Rotating shaft 50 Link member (receiving member)
55 Joint member 56 Mounting member (receiving member)

Claims (5)

A bed having a back bottom and a leg bottom;
A support frame that rotatably supports a movable bottom, which is at least one of the back bottom and the leg bottom, about a rotation axis;
A drive mechanism for rotating the movable bottom about the rotation axis;
A receiving member to which both drive mechanisms of a manual drive mechanism or an electric drive mechanism as the drive mechanism are detachably attached;
With
The support frame is
A transverse member on the head side;
A lateral member on the leg side;
A head-side leg member attached to the head-side transverse member;
A leg member attached to the leg member on the leg side;
Including
The distance between the leg-side end of the support frame and the leg-side leg member is shorter than the distance between the head-side end part of the support frame and the head-side leg member,
The bed member is attached to the leg-side lateral member .   The bed apparatus according to claim 1, wherein the leg-side leg members are provided at both ends of the leg-side lateral member. It said receiving member, is accessible from the outside of the bed apparatus bed apparatus according to claim 1 or 2. It said receiving member, one of the two drive mechanisms, one to the directly attached, the other is attached via a joint member, a bed apparatus according to any one of claims 1-3. The two drive mechanisms, wherein arranged below the legs bottom, bed apparatus according to any one of claims 1-4.

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