JPH0653089B2 - Sleeper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a bed, in particular, a back floor board, a waist floor board and a foot floor board supported on a floor support frame, so that the posture of a user on the floor board is lowered. , A function that can be a Gatch posture, a reclining posture, or a chair-like posture, and a function that can lift the waist floor plate as needed in the above conditions to assist the user to stand up from the bed, and a floor support frame. The present invention relates to a bed in which various functions such as a function of moving up and down with respect to a base and a function of inclining to both sides in the width direction are integrated.

(Prior Art) In a conventional bed, a back floor board, a waist floor board, and a foot floor board supported on a floor support frame are undulated so that the posture of the user on the floor board may be a gatch posture, a reclining posture, or a chair-like posture. And a bed that has the function of supporting the user's standing up from the bed by holding the waist floor board as necessary in the above conditions, or the floor support frame to the base. There is a bed that has the functions of raising and lowering and tilting both sides in the width direction.

(Problems to be Solved by the Invention) However, conventionally, there is no bed that integrates such various functions, and even if one of these functions is integrated, a drive source such as an electric motor is provided for each function. However, since the number of drive systems is increased, the required space is increased, the weight is increased, and the price is increased.

The present invention is intended to solve the above problems.

(Means and Examples for Solving the Problems) Means for solving the above-mentioned problems will be described together with Examples.

FIGS. 1 (a), (b) and (c) schematically show the structure and operation of the bed according to the present invention in the longitudinal direction. 2 and 3 show the construction of the bed of the present invention as a perspective view, excluding the base frame and the floor plate, respectively. Further, FIGS. 4 (a), (b), and (c) show the configuration and operation of one main part of the present invention in the longitudinal direction, and FIGS. 5 (a), (b), (c), (D) and (e) show the configuration and operation of the other main part of the present invention in the width direction.

In these drawings, reference numeral 1 is a base frame, 2 is a floor support frame,
Reference numerals 3a, 3b and 3c denote a back floor board, a waist floor board and a foot floor board, respectively. The floor support frame 2 is supported by an elevating and inclining mechanism to be described later so as to be able to elevate and descend in a horizontal state and incline to both sides in the width direction.

The back floor plate 3a is rotatably supported on the floor support frame 2 on one side, and the waist floor plate 3b and the foot floor plate 3c are flexibly connected to each other.
The first support arm 4 is provided on the b side and the second support arm 5 is provided on the foot floor plate 3c side. The back floor plate 3a is supported by a support member 7 at the same position as one end of a support rail 6 described later. In addition, a contact support member 8 is provided below the waist floor plate 3b on the back side of the floor support frame 2 in an appropriate position. The contact support member 8 is composed of a roller, and the roller contacts the support rail 6 described later.
In addition, the foot floor plate 3c rotatably supports only a portion 3d on the end side only upward. That is, the part 3d is flexibly connected to other parts, and the support link 10 is connected between the support members 9a and 9b provided on the lower side.
By providing the support link 10 with the long groove 11,
As described above, the floor support frame 2 rotatably supporting the part 3d only upward is provided with the drive shaft 12 in the width direction on the back side and the first and second width directions on the foot side. Rotatably supporting the operating shafts 13 and 14, and the drive shaft 12 has a first push-up arm 15 and first, second and third drive arms 16, 17, and 18.
And the tip portion of the first push-up arm 15 is pushed up.
The first interlocking arm 20 and the first interlocking arm 21 are connected to the back floor plate 3a via the first interlocking member 9 and project from the first interlocking arm 20. The drive arms 16 of are connected by a first drive link 22. The second operating shaft 14 has a second interlocking arm 23 and a second push-up arm 2
4 is projected. A contact portion 25 for the waist floor plate 3b is provided at the end of the second push-up arm 24.
Reference numeral 5 is a roller. A second drive link 2 formed between the second interlocking arm 23 and the second drive arm 17.
6 is rotatably connected to the second interlocking arm 23, and
An engagement groove 27 is provided on the side of the second drive arm 17 so that it can be engaged with and disengaged from a drive protrusion 28 provided on the second drive arm 17. The engagement / disengagement means A is provided on the floor support frame 2.

The floor support frame 2 is provided with a support rail 6 in which a long groove 29 is formed from above the back side to below the foot side, and a first support link whose one end is rotatably connected to the first support arm 4. Thirty
The other end side of the first operating arm 21 is movably supported in the long groove 29, and the tip end portion of the first operating arm 21 is supported by the first supporting link 30
The other end of the second support link 31 having one end connected to the second support arm 5 while being rotatably supported in the middle part of
It is rotatably supported by a support member 32 provided on the floor support frame 2. Further, the expansion and contraction drive means 33 is provided between the third drive arm 18 and the support member of the floor support frame 2.

Thus, the base frame 1 is provided with the left and right first and second actuating shafts 34a and 34b extending in the longitudinal direction of the bed and the drive shaft 35 on the center side rotatably, and the supporting rails in the width direction. 36 is provided. The drive shaft 35 has a first,
The first, third and fourth drive arms 37a, 37b, 37c,
37d and 37e are projected, and interlocking arms 38a and 38b and operating arms 39a and 39b are projected from the first and second actuating shafts 34a and 34b, respectively. First operating shaft 34a
The tip portion of the first operating arm 39a of the
0a is flexibly connected, and the other end of the first push-up link 40a is rotatably connected to a portion of the floor support frame 2 above the first operating shaft 34a. To do. Further, in the floor support frame 2, the second operation shaft 3
4b, the other end of a second push-up link 40b, one end of which is rotatably connected, is movably supported along the support rail 36, and the second operating shaft 34b.
Of the second actuating arm 39b of the second push-up link 4
It is rotatably connected to the middle part of 0b. The support rail 6 is formed with a guide groove 41.
1 is engaged with a support protrusion provided on the other end of the second push-up link 40b to be movable. A contact support roller 42 is provided at or near the connection position between the first operating arm 39a and the first push-up link 40a. The contact support roller 42 is provided between the second push-up link 40b and the support rail 36. It is configured to abut on the upper side.

Further, the first and second drive arms 37a and 37b and the first and second interlocking arms 38a and 38b are connected to the first and second drive links 43a and 43b, respectively. The links 43a and 43b have the interlocking arm 38 at one end side.
a and 38b are rotatably connected, and a drive groove 44 is provided on the other end side.
a, 44b are formed, and the drive arms 37a, 37 are formed.
The drive protrusion 45 engaging with the drive grooves 44a and 44b is provided at b.
a, 45b are provided, and the drive grooves 44a, 44b are provided with drive links 4 for rotating the operating shafts 34a, 34b so that the first and second operating arms 39a, 39b are rotated and raised.
Drive protrusions 45a, 45b only in the moving directions of 3a, 43b
Is configured to engage with. In the illustrated example, the first interlocking arm 38a is configured below the first actuating shaft 34a, and the first drive arm 37a pulls the first interlocking arm 38a via the first drive link 43a. The direction is such that the first actuating arm 39a is rotated upward, and the second interlocking arm 38b is arranged above the second actuating shaft 34b.
The direction in which the second drive arm 37b pushes the second interlocking arm 38b via the second drive link 43b causes the second actuating arm 39b to rotate upward. Therefore, the drive protrusions 45a and 45b of the respective drive arms 37a and 37b are
The drive grooves 44a and 44b are engaged with the drive grooves 44a and 44b in a pulling direction and a pushing direction, respectively. Then, corresponding to the respective drive links 43a and 43b, the respective drive grooves 44a and 44b are formed in the drive projections 4
A base frame 1 is provided with an engaging / disengaging means A'that can be engaged / disengaged with the 5a and 45b.
It is provided in. A telescopic drive means 33 'is provided between the third drive arm 40b and the support member of the base frame 1.

The above-mentioned engagement / disengagement means A, A'moves each drive link 26; 43a, 43b by a linear drive mechanism, that is, moves in the vertical direction in the figure in the illustrated example to drive its engagement groove to each drive. It is configured to shift to a state in which the engagement protrusion of the arm is engaged and a state in which the engagement protrusion is not engaged. Such a linear drive mechanism is configured to perform linear displacement using a solenoid as a drive source,
It can be constituted by a screw shaft type telescopic drive mechanism driven by a small motor, or by a control cable mechanism. The figure shows a screw shaft type telescopic drive mechanism driven by a small motor. This embodiment and the configuration using the control cable mechanism have an advantage that the operation sound is quieter than that of the mechanism using the solenoid. Further, the expansion / contraction driving means 33, 33 'are
In addition to the motor-driven screw shaft expansion / contraction drive described above, a hydraulic cylinder or a pneumatic cylinder can be applied. Further, a tension coil spring 46 and a spring for urging the drive shaft 35 in the upward direction of the floor support frame 2 are provided between the fourth drive arm 37d and the base frame 1.

(Operations and Examples) In the above-mentioned configuration, first, in a state where the floor support frame 2 is horizontally supported at an appropriate position on the base frame 1, each floor plate is shown in FIG. ), As shown in FIG. 4 (a), when the engagement / disengagement means A is operated to move the second drive link 26 upward, the engagement groove 27 Is in a state of not engaging with the engagement protrusion 28 of the second drive arm 17. In this state, when the expansion / contraction driving means 33 is operated to rotate the drive shaft 12 in the clockwise direction in the figure via the third drive arm 18, the rotation of the drive shaft 12 causes the first push-up arm 15 to rotate. Ascending, the back floor plate 3a is pivotally raised via the push-up link 19. By the rotation of the drive shaft 12,
Since only the first operating shaft 13 is interlocked with the first driving arm 16, the first driving link 22, and the first interlocking arm 20 to rotate, the first operating arm 21, the support rail 6, and Due to the interaction of the first support links 30, the first support arm 4, that is, the foot side of the waist floor plate 3b moves to the upper right in the figure. Since the back of the waist floor plate 3b is free, the contact support member 8
Is supported by abutting on the upper side of the support rail 6, and thus the waist floor plate 3b is inclined with the foot side upward and the back side downward. On the other hand, as described above, when the foot side of the waist floor board 3b moves to the upper right in the figure, the foot floor board 3c flexibly connected to the waist floor board 3b also rises, so the foot floor board 3c By the action of the second support link 31, is supported in a state of being rotated and lowered clockwise with the connection position as a fulcrum.

In this way, as shown in FIGS. 1 (b) and 4 (b), the back floor plate 3a pivots and rises, and at the same time, the waist floor plate 3
b turns downward with the foot side as the upper part, and the foot floor plate 3c
By rotating and lowering with the end portion side downward, the user on the floor plate can be placed in the Gatch posture, the reclining posture, or the chair-like posture. As described above, when the waist floor plate 3b is rotated and lowered as the back floor plate 3a is rotated and raised, the waist floor plate 3b moves in the foot side direction, so that the abdomen of the user is not pressed.

Next, in a state where each floor plate is supported on a plane as shown in FIGS. 1 (a) and 4 (a), the engagement / disengagement means A is operated to operate the second drive link 26. Is moved downward so that the engaging groove 27 is engaged with the engaging protrusion 28 of the second drive arm 17.
In this state, the expansion / contraction drive means 33 is operated to rotate the drive shaft 12 via the third drive arm 18. This time, the engagement groove 27 of the second drive link 26 and the engagement protrusion 28 of the second drive arm 17 engage, so that the second drive arm 17, the second drive arm 17, The second operating shaft 14 also interlocks with the drive link 26 and the second interlocking arm 23 to rotate. Therefore, as described above, the back floor plate 3a is pivotally raised, and the foot side of the waist floor plate 3b moves to the upper right in the figure, and at the same time, as shown in FIGS. 1 (c) and 4 (c), the second push-up is performed. The arm pivotally rises to push up the waist floor plate 3b, and the waist floor plate 3b pivotally moves up with the connecting position with the foot floor plate 3c as a fulcrum.

Therefore, the user on the floor is lifted up by the waist floor plate 3b to the front side, and is assisted to stand up from the bed. In this way, when the foot floor plate 3c is gradually lowered, when the tip of the part 3d on the end side comes into contact with the floor surface of a room or the like, the part 3d automatically bends relatively upward. Since the length of the foot floor plate 3c is substantially shortened, the user's foot can be reliably brought to the floor surface. Further, in the above operation, the lifting and tilting mechanism described later can be simultaneously operated as appropriate.

Next, with the floor plate on the floor support frame 2 being horizontally supported or being appropriately undulated, as shown in FIG. In the state of being located at position 1, the engaging / disengaging means A'is operated to move the first and second drive links 43a and 43b so that the engagement grooves 44a and 44b are moved to the first and second drive directions. Arms 37a, 37
The engaging projections 45a and 45b of the third drive arm 3 are operated by operating the expansion / contraction driving means 33 'in this state.
When the drive shaft 35 is rotated via 7c, the first and second actuating shafts 3 are moved by the first and second drive links 43a and 43b.
4a and 34b simultaneously rotate in opposite directions, and the first and second operating arms 39a and 39b simultaneously rotate and rise.

By the pivotal rise of the operating arms 39a, 39b, one end of the first push-up link 40a and the second push-up link 40b.
Since the intermediate portions of the second moving arms 39a and 39b move outward and upward respectively along the rotational loci of the operating arms 39a and 39b, the other end portion of the second push-up link 40b moves along the support rail 36. The support frame 2 is, as shown in FIG. 5 (b) to (c),
The first and second push-up links 40a and 40b move upward in parallel. When the expansion / contraction driving means 33 'is operated in the opposite direction and the drive shaft 35 is rotated in the opposite direction to the above, the floor supporting frame 2 descends flat due to the reverse operation. Then, when the other end of the second push-up link 40b reaches the end point of the movement along the support rail 36, the second push-up link 40b.
Is held in place by the second actuating arm 39b,
Further, in the first push-up arm 40b, the contact support roller 42 is
The second supporting link 40b is brought into contact with and held at a predetermined position, and thus the floor support frame 2 is shown in FIG. 5 (a).
Reach the lowest position in a parallel ascending / descending state.

Next, at this position, only the engagement / disengagement means A'on either side is operated, and for example, only the engagement groove 44a of the first drive link 43a on the left side in the drawing corresponds to the first drive arm 3a.
When the drive shaft 35 is rotated through the third drive arm 37c by operating the expansion and contraction drive means 33 'in the state of engaging with the engagement protrusion 45a of 7a in the same manner as described above, the first drive is performed. By the link 43a, only the first actuating shaft 34a is turned, the first actuating arm 39a is turned up, and the first push-up link 40a is also actuated in the same manner as described above. On the other hand, since the second push-up link 40b is held at the lowest position as described above, only the left side of the floor support frame 2 in the figure is driven by the first push-up link 40a to rise, and the right side of the figure is increased. Tilts downward.

Next, in the state shown in FIG. 5 (a) described above, only the engagement / disengagement means A'on the other side is operated so that only the engaging groove 44b of the second drive link 43b on the right side in the figure corresponds. When the engaging projection 45b of the second drive arm 37b is engaged, and in this state, the expansion / contraction drive means 33 'is operated to rotate the drive shaft 35 via the third drive arm 37c. By the second drive link 43b, only the second actuating shaft 34b is turned, the second actuating arm 39b is turned up, and the second push-up link 40b is actuated in the same manner as described above. The side gradually moves to the right side in the drawing along the support rail 36.
On the other hand, the first drive link 43a is connected to the first drive arm 37a.
Since it is free with respect to the first interlocking arm 38a
Therefore, the contact support roller 42 gradually descends along the second link 40b as the second push-up link 40b moves to the right side in the figure without holding the actuating shaft 34a. The base frame 1 is brought into contact with the proper position of the base frame 1 and the upper side of the support rail 36, and is supported as the lowest position. By such an operation, only the right side of the floor support frame 2 in the figure is driven by the second push-up link 40b to move upward, and the left side of the figure inclines downward.

In the above operation, the drive shaft 35 is attached to the fourth drive arm 37.
Since d is provided and the spring 46 for urging the floor support frame 2 in the ascending direction is provided, it is possible to reduce the capacity of the drive source when the floor support frame 2 is raised, and at the time of the descent. As described above, in the present invention, a drive source such as an electric motor is used as the engagement / disengagement means described above. Since it suffices to move the first and second drive links and it is not necessary to withstand a large load, a small capacity is sufficient, and therefore the required space of the mechanism, the weight, and the increase in price etc. are too much affected. Absent.

(Effect of the invention) As described above, the present invention provides a back floor board supported on a floor support frame,
A function that allows the waist floor plate and the foot floor plate to be undulated so that the user's posture on the floor plate can be a Gatch posture, a reclining posture, or a chair-like posture, and the waist floor plate is lifted as necessary to raise the user from the bed. Along with the function that can assist, the floor horizontal elevating function and the widthwise inclination to both sides,
That is, since it integrates a number of rolling functions, it is ideal as a bed for users who have to lie down for a long time, and these drive sources are two.
Since the drive system is configured to be the minimum, the space required is small, the weight is light, and the cost can be reduced.

[Brief description of drawings]

1 (a), (b), and (c) are side views schematically showing the structure and operation of the bed of the present invention in the longitudinal direction, and FIGS. 2 and 3 show the bed of the present invention, respectively. It is an explanatory perspective view showing composition except a base frame and a floor board. Further, FIGS. 4 (a), (b), and (c) are side views showing the configuration and operation of one main part of the present invention in the longitudinal direction, and FIGS. 5 (a), (b), and (c). , (D) and (e) are front views showing the configuration and operation of the other main part of the present invention in the width direction with a part omitted, FIGS. 6 (a), (b), (c). ,
(D) and (e) are front views showing the parts omitted in FIG. 5, and FIG. 7 is an explanatory perspective view showing an example of engaging / disengaging means. Reference numeral 1 ... Base, 2 ... Floor support frame, 3a ... Back floor board,
3b ...... waist floorboard, 3c ...... foot floorboard, 3d ... part,
4 ... 1st support arm, 5 ... 2nd support arm, 6 ... Support rail, 7 ... Support member, 8 ... Contact support member, 9a,
9b ... Support member, 10 ... Support link, 11 ... Long groove, 12 ... Drive shaft, 13 ... First operating shaft, 14 ...
2nd actuation axis, 15 ... 1st push-up arm, 16 ... 1st drive arm, 17 ... 2nd drive arm, 18 ... 3rd drive arm, 19 ... Pushup link, 20 ... … First interlocking arm, 21
... first actuating arm, 22 ... first drive link, 23 ...
... second interlocking arm, 24 ... second push-up arm, 25 ... abutting portion, 26 ... second drive link, 27 ... engaging groove, 28
...... Drive protrusion, 29 ...... long groove, 30 ...... first support link, 31 ...... second support link, 32 ...... support member, 3
3, 33 '... Expansion / contraction drive means, 34a, 34b ... Operating shaft, 35 ... Drive shaft, 36 ... Support rail, 37a, 3
7b, 37c, 37d ... Drive arm, 38a, 38b ...
Interlocking arms, 39a, 39b ... Actuating arms, 40a, 40b ...
... push-up link, 41 ... guide groove, 42 ... contact support rollers, 43a, 43b ... drive link, 44a, 44b
...... Drive groove, 45a, 45b ...... Drive protrusion, 46 ......
Spring, A, A '... Disengagement means.

Claims (8)

[Claims] 1. A base frame, a floor support frame, and a back floor plate, a waist floor plate, and a foot floor plate supported on the floor support frame,
The back floor plate rotatably supports one side on the floor support frame, and the waist floor plate and the foot floor plate are flexibly connected, and in the vicinity of this connection position, the first support arm is provided on the waist floor plate side. With the configuration in which the second support arm is provided on the foot floor plate side, the floor support frame has a drive shaft in the width direction on the back side, and first and second operating shafts in the width direction on the foot side. It is rotatably supported, and a first push-up arm and first, second, and third drive shafts are projectingly provided on the drive shaft, and the tip end portion of the first push-up arm is connected via a push-up link. A first interlocking arm and a first actuating arm are provided on the first actuating shaft so as to be connected to the back floor plate, and the first interlocking arm and the first drive arm are connected to the first drive link. While connecting with
A second interlocking arm and a second push-up arm are projectingly provided on the second operating shaft, and the second drive link formed between the second interlocking arm and the second drive arm is In addition to being rotatably connected to the interlocking arm, the second drive arm side is provided with an engaging groove so that the drive projection provided on the second drive arm can be engaged and disengaged. Provided on the floor support frame, the end portion of the second push-up arm is provided with a contact portion to the waist floor plate, the floor support frame,
A support rail having a long groove is provided from the upper side of the back to the lower side of the foot, and the other end of the first support link whose one end is rotatably connected to the first support arm is movable in the long groove. In addition to supporting, the tip end portion of the first operating arm is rotatably supported on the intermediate portion of the first supporting link, and the other end of the second supporting link is connected to the second supporting arm. The edge,
The floor supporting frame is rotatably supported by a supporting member provided on the floor supporting frame, and expansion and contraction driving means is provided between the third driving arm and the supporting member of the floor supporting frame. Sleeper characterized by being supported through 2. An elevating and tilting mechanism, in which a left and right first and second actuating shafts extending in a longitudinal direction of a base and a drive shaft on a central side are rotatably provided, and a supporting rail having a widthwise long groove. The drive shaft is provided with first, second, and third drive arms, and the first and second operation shafts are provided with interlocking arms and operation arms, respectively. The tip end portion of the first actuating arm of the actuating shaft flexibly connects one end portion of the first push-up link, and the other end portion of the first push-up link is connected to the floor support frame as described above. A second push-up link rotatably connected to a position above the one actuating shaft, and one end rotatably connected to a place above the second actuating shaft in the floor support frame. The other end is movably supported along the long groove of the support rail, and the distal end of the second operating arm of the second operating shaft is The second push-up link is rotatably connected to an intermediate portion, and the first and second drive links are connected between the first and second drive arms and the first and second interlocking arms, respectively. These drive links have one end side rotatably connected to the interlocking arm and a drive groove formed on the other end side, and the drive arm is provided with a drive protrusion engaging with the drive groove. The drive groove is configured to engage with the drive projection in a direction in which the first and second operation arms are rotated and raised, and the drive groove is associated with the drive projection in correspondence with each drive link. The bed according to claim 1, wherein a detachable engaging / disengaging means is provided on the base, and a telescopic drive means is provided between the third drive arm and a support member of the base. 3. The engagement / disengagement means moves a second drive link by a linear drive mechanism to engage and disengage an engagement groove of the second drive link with an engagement protrusion of a second drive arm. The bed according to claim 1 or 2, characterized in that 4. The bed according to claim 3, wherein the linear drive mechanism is configured to perform linear displacement using a solenoid as a drive source. 5. The bed according to claim 3, wherein the linear drive mechanism is a screw shaft type telescopic drive mechanism driven by a small motor. 6. The bed according to claim 3, wherein the linear drive mechanism comprises a control cable mechanism. 7. The bed according to claim 1, wherein the extension / contraction drive means is a motor-driven screw shaft type extension / contraction drive. 8. The bed according to claim 1, wherein the foot floor plate rotatably supports a part of an end side only upward.