JPH0467814A - Bed - Google Patents

Abstract

PURPOSE:To obtain a bed by which various functions are unified, a necessary space is small, weight is reduced and cost is low by providing a flexible driving means between a third driving arm and a supporting member of a floor supporting frame, and supporting the floor supporting frame through an up and down/inclining mechanism on a base. CONSTITUTION:When a second driving link 26 is moved vertically by operating an attaching/detaching means A, its engaging groove 27 becomes a state that it is not engaged to the engaging production 28 of a second driving arm 17. In such a state, when a driving shaft 12 is turned clockwise through a third driving arm 18 by operating a flexible driving means 33, a first pushing-up arm 15 turns and ascends by turning this driving shaft 12, and a back part floor plate 3a turns and ascends through a pushing-up link 19. A user on the floor plate can be set to a catch posture, a reclining posture or a chair-like posture. Subsequently, a second driving link 26 is moved vertically by operating the attaching/detaching means A, and the driving shaft 12 is turned through a third driving arm 18 by operating the flexible driving means 33. Accordingly, a user on the floor part is raised as to his waist to the front side by a waist part floor part 3b, and it is assisted to rise from the bed. Also, in the operation, the up and down/inclining mechanism can be operated simultaneously and suitably.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides a bed, in particular, a bed, in particular a back floor plate, a lumbar floor plate and a foot floor plate supported on a floor support frame, by undulating the user's posture on the floor plate. A function that allows the user to take a gatch posture, a reclining posture, or a chair-like posture; a function that can lift the lumbar floor plate as necessary in the above conditions to assist the user in rising from the bed; and a function that allows the user to stand up from the bed. This invention relates to a bed that integrates various functions such as raising and lowering the bed and tilting it to both sides in the width direction.

(Prior Art) Conventional beds have a back floor plate, a lumbar floor plate, and a foot floor plate supported on a floor support frame that are raised and lowered to adjust the posture of the user on the floor plate to a gatch posture, a reclining posture, or a chair-like posture. A bed with a function that allows the user to stand up from the bed by lifting the lumbar floorboard as necessary in the above conditions, or a bed with a floor support frame attached to the base. There is a bed that has the function of raising and lowering as well as tilting on both sides in the width direction.

(Problem to be solved by the invention) However, until now, there has been no bed that integrates such various functions, and even if some of these functions are integrated, each function requires a separate drive source such as an electric motor. Since the number of drive systems is increased, the required space becomes larger, the weight increases, and the price also increases.

The present invention aims to solve the above problems.

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

FIGS. 1(a), (b), and (c) schematically illustrate the structure and operation of the bed of the present invention in the elongated direction. Further, FIGS. 2 and 3 are perspective views showing the structure of the bed of the present invention, excluding the base frame and floor plate, respectively. Furthermore, FIGS. 4(a), (b), and (c) represent the configuration and operation of one of the main parts of the present invention in the long plane direction, and FIG. 5(a)
), (b), (c), (d), and (e) represent the configuration and operation of the other main part of the present invention in the width direction.

In these figures, the symbol 1 is the base frame, 2 is the floor support frame,
3a, 3b, and 3C indicate a back floor plate, a lumbar floor plate, and a foot floor plate, respectively. The floor support frame 2 is supported by an elevating and lowering tilting mechanism to be described later so that it can be raised and lowered in a horizontal state and tilted to both sides in the width direction.

The back floor plate 3a is rotatably supported on one side by the floor support frame 2, and the lumbar floor plate 3b and the foot floor plate 3C are bendably connected, and in the vicinity of this connection position, the lumbar floor plate 3
A first support arm 4 is provided on the b side, and a 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 location as one end of a support rail 6, which will be described later. Further, a support member 8 is provided below the back side of the lumbar floor plate 3b to abut on the floor support frame 2 at an appropriate position. This abutment support member 8 is composed of a roller, and this roller is configured to abut on a support rail 6, which will be described later. Further, the foot floor plate 3c connects and supports a portion 3d on the end side so as to be rotatable only upwardly. That is, this part 3d is bendably connected to other parts, and the supporting member 9a is provided on the lower side.

A support link 10 is connected between the support links 10 and 9b, and by providing a long groove 11 in the support link IO, the floor support frame 2 connects and supports the part 3d so as to be rotatable only upwardly, as described above. The drive shaft 12 is rotatably supported in the width direction on the back side, and first and second actuation shafts 13.14 are rotatably supported in the width direction on the foot side. Push-up arm 15 and first, second and third drive arms +6.17.18
is provided protrudingly, and the tip of the first push-up arm 15 is connected to the push-up link 1.
9 to the back floor plate 3a, and the first operating shaft 13 is provided with a first interlocking arm 20 and a first operating arm 21 protruding from the first interlocking arm 20 and the first operating shaft 13. The drive arms 16 of the two drive arms 16 are connected by a first drive link 22. A second interlocking arm 23 and a second push-up arm 2 are attached to the second operating shaft 14.
4 is installed protrudingly. A contact portion 25 for contacting the waist floor plate 3b is provided at the end of the second push-up arm 24.
5 consists of rollers. a second drive link 2 configured 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 second drive arm 17 side so that the engagement groove 27 can be freely engaged with and detached from a drive protrusion 28 provided on the second drive arm 17 . The engaging/disengaging 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 the upper part of the back side to the lower part of the foot part side, and a first support link whose one end is rotatably connected to the first support arm 4. 30
The other end side is movably supported in the long groove 29, and the tip of the first actuating arm 21 is supported in the first support link 30.
The other end of a second support link 31 is rotatably supported at the middle part of the support link 31 and has one end connected to the second support arm 5.
It is rotatably supported by a support member 32 provided on the floor support frame 2. A telescopic drive means 33 is provided between the third drive arm 18 and the support member of the floor support frame 2.

Therefore, the base frame l is rotatably provided with first and second operating shafts 34a and 34b on the left and right sides extending in the longitudinal direction of the bed, and a drive shaft 35 on the center side, and a support rail in the width direction. 36 will be provided. The drive shaft 35 includes a first
second, third and fourth drive arms 37a, 37b, 37c,
37d and 37e, and interlocking arms 38a and 38b and operating arms 39a and 39b are respectively provided on the first and second operating shafts 34a and 34b. First operating shaft 34a
The tip of the first operating arm 39a is connected to the first push-up link 4.
One end of the first push-up link 40a is bendably connected, and the other end of the first push-up link 40a is rotatably connected to the same side of the first operating shaft 34a in the law support frame 2. .

Further, in the floor support frame 2, the second operating shaft 34b
The other end of the second push-up link 4ob, whose one end is rotatably connected to the same side as the support rail 36, is movably supported along the support rail 36, and the second operation of the second operating shaft 34b is performed. The tip of the arm 39b is rotatably connected to the intermediate portion of the second push-up link 40b. The support rail 6 has a guide groove 41 formed therein, and a support protrusion provided at the other end of the second push-up link 40b is engaged with the guide groove 41 so as to be movable. and the first actuating arm 39
A contact support roller 42 is provided at or near the connecting position of the push-up link 40a and the first push-up link 40a, and this contact support roller 42 connects the second push-up link 40b and the support rail 3.
6.

Further, first and second drive links 43a and 43b are connected between the first and second drive arms 37a and 37b and the first and second interlocking arms 38a and 38b, respectively. The links 43a and 43b have one end connected to the interlocking arm 38.
a, 38b, and a drive groove 44a on the other end side.
, 44b, and the drive arms 37a, 37b.
is a driving protrusion 45a that engages with the driving grooves 44a and 44b.
.

45b, and these drive grooves 44a, 44b are configured to engage with the drive protrusions 45a, 45b in the direction of rotationally raising the first and second operating arms 39a, 39b. In the illustrated example, the first link arm 38a is configured below the first actuating arm 39a, and the first drive arm 37a pulls the first link arm 38a via the first drive link 43a. The direction is the direction in which the first actuating arm 39a rotates upward, and the second interlocking arm 38b is configured above the second actuating arm 39b, and the second driving arm 37b
The second interlocking arm 3 via the second drive link 43b
The second operating arm 39b is configured to rotate upward in the direction in which the second actuating arm 39b is pushed and moved. Therefore, the respective drive arms 37a, 3
7b drive protrusion 45a.

45b is configured to engage with the drive grooves 44a, 44b in the direction of pulling and pushing the drive grooves 44a, 44b, respectively. and each of the drive links 43a,
43b, engaging and disengaging means A' for freely engaging and disengaging the respective drive grooves 44a and 44b with the drive protrusions 45a and 45b.
is provided on the base frame 1. and the third drive arm 40
A telescopic driving means 33' is provided between the supporting member of the base frame l and the base frame l.

The above-mentioned engagement and disengagement means A, A' move each drive link by a linear drive mechanism, that is, move in the vertical direction in the figure in the illustrated example, and connect the engagement groove to the engagement protrusion of each drive arm. It is configured to shift between a state in which it engages and a state in which it does not engage.

Such a linear drive mechanism can be configured to perform linear displacement using a solenoid as a drive source, can be configured by a screw shaft type telescoping drive mechanism driven by a small motor, or can be configured by a control cable mechanism. The figure shows a screw shaft type telescoping drive mechanism driven by a small motor. This embodiment and the configuration using the control cable mechanism have the advantage that the operating noise is quieter than the mechanism using a solenoid. Further, the telescopic drive means 33.33 may be the aforementioned motor-driven screw shaft type telescoping drive rod, or may be a hydraulic cylinder or a pneumatic cylinder. Further, between the fourth drive arm 37d and the base frame 1, a tension coil spring 46, which is a spring that biases the drive shaft 35 in the upward direction of the floor support frame 2, is provided.
has been established.

(Operations and Examples) In the above configuration, first, in a state where the floor support frame 2 is horizontally supported at an appropriate position on the base frame l, each floor plate is ), when the second drive link 26 is moved upward by operating the engagement/disengagement means A in the state where it is supported on a plane as shown in FIG. 4(a), the engagement groove 27 is in a state where it does not engage with the engagement protrusion 28 of the second drive arm 17. In this state, when the telescopic drive means 33 is operated to rotate the drive shaft 12 clockwise 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. The back floor plate 3a is rotated and raised via the push-up link 19. Due to the rotation of the drive shaft 12,
Since only the first actuating shaft 13 rotates in conjunction with the first driving arm 16, the first driving link 22, and the first interlocking arm 20, the first actuating arm 21, the support rail 6, and Due to the interaction of the first support link 30, the first support arm 4, ie, the foot side of the lumbar floor plate 3b, moves to the upper right in the figure. Since the back side of the lumbar floor plate 3b is in a free state, the contact support member 8
A roller is supported in contact with the upper side of the support rail 6, so that the lumbar floor plate 3b is inclined upward on the foot side and downward on the back side. On the other hand, as described above, by moving the lumbar floor plate 3b to the foot side or to the upper right in the figure, the foot floor plate 3C, which is bendably connected to the lumbar floor plate 3b, also rises. 3C is supported by the action of the second support link 31 in a state in which it is rotated downward in a clockwise direction using the connection position as a fulcrum.

In this way, as shown in FIG. 1(b) and FIG. 4(b), the back floor plate 3a rotates upward and at the same time
b rotates downward with the foot side at the top, and the foot floor plate 3c
By rotating and descending with the end side facing downward, the user on the floorboard can be placed in a gatch position, a reclining position, or a chair-like position. As described above, when the lumbar floor plate 3b rotates downward as the back floor plate 3a rotates upward, the lumbar floor plate 3b moves toward the feet, so it does not press on the user's abdomen.

Next, with each floor plate supported on a flat surface as shown in FIGS. 1(a) and 4(a), the engaging/disengaging means A is operated to connect the second drive link 26. is moved downward so that its engagement groove 27 engages with the engagement protrusion 28 of the second drive arm 17, and in this state, the telescopic drive means 33 is operated to The drive shaft 12 is rotated. 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 and the second The second actuating shaft 14 also rotates in conjunction with the drive link 26 and the second interlocking arm 23. Therefore, as described above, the back floor plate 3a rotates upward, and the foot side of the lumbar floor plate 3b moves upward to the right in the figure, and at the same time, as shown in FIGS. 1(C) and 4(c), the second push-up occurs. The arm rotates upward and pushes up the lumbar floor plate 3b, and the lumbar floor plate 3b rotates upward using the connection position with the foot floor plate 3C as a fulcrum.

Therefore, the user on the floor has his/her waist lifted forward by the lumbar floor plate 3b, and is assisted in getting up from the bed.

When the foot floor plate 3C gradually descends in this way, when the tip of the end portion 3d comes into contact with the floor surface of a room, etc., this portion 3d automatically bends relatively upward. Since the length of the foot floor plate 3C is substantially shortened, the user's feet can reliably reach the floor surface. Further, in the above operation, the lifting/lowering tilting mechanism described later can be appropriately operated at the same time.

Next, when the floor plate on the floor support frame 2 is supported horizontally or in an appropriately undulating state, as shown in FIG. In this state, the engaging/disengaging means A' is operated to connect the first and second drive links 43a.

43b to open the engagement grooves 44a and 44b.
Engagement projections 45a of the first and second drive arms 37a and 37b,
45b, and in this state, the telescopic drive means 3
3' to rotate the drive shaft 35 via the third drive arm 37c, the first and second drive links 43a, 43
b, the first and third actuating shafts 34a, 34b simultaneously rotate in opposite directions, and the first and second actuating arms 39a, 39b simultaneously rotate upward.

As the operating arms 39a and 39b rotate and rise, one end of the first push-up link 40a and the second push-up link 40b
The middle part of each is the operating arm 39a.

39b, the other end of the second push-up link 40b moves outward and upward along the rotation locus of the support rail 3.
6, the floor support frame 2 moves along the first and second push-up links 40a and 4 as shown in FIGS. 5(b) to 5(c).
It rises in parallel due to 0b. In addition, the telescopic drive means 33'
When the drive shaft 35 is rotated in the opposite direction, the floor support frame 2 is lowered in parallel due to the operation opposite to that described above. Then, when the other end of the second push-up link 40b reaches the end point of its movement along the support rail 36.

This second push-up link 40b is held in a predetermined position by a second actuating arm 39b, and the first push-up arm 40b is connected to the second push-up link 40 by the contact support roller 42.
b, and is held in a predetermined position, and thus the floor support frame 2 reaches its lowest position in the parallel lifting condition shown in FIG. 5(a).

Next, in this position, either one of the engaging/disengaging means A
For example, only the engagement groove 44a of the first drive link 43a on the left side in the figure is operated by the corresponding first drive arm 37.
When the telescopic drive means 33' is operated in the same manner as described above to rotate the drive shaft 35 via the third drive arm 37c, the first drive Only the first operating shaft 34a rotates by the link 43a, the first operating arm 39a rotates upward, and the first push-up link 40a is also operated 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 and rises, and the right side in the figure slopes downward.

Next, in the state shown in FIG. 5(a) described above, only the engagement/disengagement means A'' on the other side is operated to engage only the engagement groove 44b of the second drive link 43b on the right side in the figure. When the second drive arm 37b is engaged with the engagement protrusion 45b, and in this state, the telescopic drive means 33' is operated in the same manner as described above to rotate the drive shaft 35 via the third drive arm 37C. By the second drive link 43b, only the second operating shaft 34b rotates, the second operating arm 39b rotates upward, and the second push-up link 40b is also operated in the same manner as described above, and the other end is rotated. The side gradually moves to the right in the figure along the support rail 36.

On the other hand, the first drive link 43a is connected to the first drive arm 37a.
Since the first interlocking arm 38a is free from the
Therefore, as the second push-up link 40b moves to the right in the figure, the abutting support roller 42 gradually moves to the second push-up link 40b.
b, and finally comes into contact with the upper side of the support rail 36 at a proper place on the base frame 1, and is supported at the lowest position. Due to such an operation, only the right side in the figure of the floor support frame 2 is driven by the second push-up link 40b and rises, and the left side in the figure is tilted downward.

In the above operation, a fourth drive arm 37 is attached to the drive shaft 35.
d is provided, thereby providing a spring 46 that biases the floor support frame 2 in the upward direction, so that the capacity of the drive source when the floor support frame 2 is raised can be reduced, and when the floor support frame 2 is lowered, the capacity of the drive source can be reduced. Furthermore, as mentioned above, in the present invention, a drive source such as an electric motor is used for the above-mentioned engaging/disengaging means, but this drive source is simply the above-mentioned one. It is only necessary to move the first and second drive links, and there is no need to resist large loads, so a small capacity is sufficient, and therefore there is no significant impact on the space required for the mechanism, increase in weight, price, etc. .

(Effects of the Invention) As described above, the present invention provides a back floor plate supported on a floor support frame;
The lumbar floor plate and the foot floor plate can be raised and lowered to change the user's posture on the floor plate to a gatch, reclining or chair-like posture, and the lumbar floor plate can be raised as necessary to allow the user to move from the bed. This product is ideal for users who have to lie on their backs for long periods of time, as it integrates a number of functions that can assist in standing up, as well as a horizontal floor raising and lowering function, and a rolling function that tilts the floor to both sides in the width direction. In addition to being optimal as a bed, since there are only two drive sources and the drive system is configured to a minimum, the space required is small, the weight is light, and the price can be reduced.

[Brief explanation of the drawing]

FIGS. 1(a), (b), and (c) are side views schematically showing the configuration and operation of the bed of the present invention in the longitudinal direction, and FIGS. 2 and 3 are side views of the bed of the present invention, respectively. It is an explanatory perspective view showing composition excluding a base frame and a floorboard. Also, Figure 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.
), (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. Further, FIG. 6 is an explanatory perspective view showing an example of the engaging/disengaging means. Reference numerals 1... Base, 2... Floor support frame, 3a... Back floor plate, 3b... Waist floor plate, 3c... Foot floor plate, 3d...
... Part, 4... First support arm, 5... Second 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... Second operating axis, 15... First pushing upper arm, 1
6.First drive arm, 17.Second drive arm, 18.
...Third drive arm, 19... Push-up link, 20...
First interlocking arm, 21... First operating arm, 22... First drive link, 23... Second interlocking arm, 24...
Second pushing upper arm, 25... Contact portion, 26... Second drive link, 27... Engagement groove, 28... Drive protrusion, 2
9... Long groove, 30... First support link, 31...
- Second support link, 32... support member, 33...
Telescopic drive means, A... engagement/disengagement means. Figure 5 (Plan) @Figure 5 (b) 2゜Figure 5 (e) A1□, E'lb

Claims (8)

[Claims] (1) Consisting of 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, and the back floor plate is rotatable with one side attached to the floor support frame. The lumbar floor plate and the foot floor plate are connected in a flexible manner, and in the vicinity of this connection position, a first support arm is provided on the lumbar floor plate side, and a second support arm is provided on the foot floor plate side. At the same time, the floor support frame rotatably supports a drive shaft in the width direction on the back side, and first and second actuation shafts in the width direction on the foot side. A push-up arm and first, second, and third drive arms are provided in a protruding manner, the tip of the first push-up arm is connected to the back floor plate via a push-up link, and the first operating shaft has a A first interlocking arm and a first actuating arm are provided protrudingly, the first interlocking arm and the first driving arm are connected by a first driving link, and a second actuating arm is connected to the second actuating shaft. The interlocking arm and the second pushing upper arm protrude,
A second drive link configured between the second interlocking arms and the second drive arm is rotatably connected to the second interlocking arm, and has an engagement groove on the second drive arm side. is configured to be able to engage and detach freely from the drive protrusion provided on the second drive arm, and the engagement and disengagement means is provided on the floor support frame, and the end of the second push-up arm is configured to be able to engage and detach from the drive protrusion provided on the second drive arm, and the end of the second pushing upper arm is configured to be able to engage and detach from the drive protrusion provided on the second drive arm. the floor support frame is provided with a support rail in which a long groove is formed from an upper part of the back side to a lower part of the foot part side, and one end of the floor support frame is rotatably connected to the first support arm; The other end of the link is movably supported in the long groove, the distal end of the first operating arm is rotatably supported in the middle of the first support link, and the second support arm The other end of the second support link, the other end of which is connected to the second support link, is rotatably supported by a support member provided on the floor support frame, and a telescopic drive means is provided between the third drive arm and the support member of the floor support frame. established,
A bed characterized in that the floor support frame is supported on a base via a lifting and lowering tilting mechanism. (2) The lifting/lowering tilting mechanism according to claim 1 is provided with rotatably provided first and second operating shafts on the left and right sides extending in the longitudinal direction of the base and a drive shaft on the center side, and has a long groove in the width direction. a support rail is provided, first, second and third drive arms are provided protruding from the drive shaft, and an interlocking arm and an actuation arm are protruded from the first and second actuating shafts, respectively; The tip of the first operating arm of the one operating shaft connects one end of the first push-up link in a flexible manner, and connects the other end of the first push-up link to the floor support frame. a second push-up link rotatably connected to the same side as the first operating shaft, and having one end rotatably connected to the same side of the floor support frame as the second operating shaft; The other end is movably supported along the long groove of the support rail, and the tip of the second actuation arm of the second actuation shaft is rotatably attached to the middle part of the second push-up link. and the first and second drive links are connected between the first and second drive arms and the first and second interlocking arms, respectively, and these drive links have one end connected to the interlocking arm. The drive arm is rotatably connected to the arm, and a drive groove is formed on the other end side, and the drive arm is provided with a drive protrusion that engages with the drive groove, and these drive grooves are connected to the first and second drive grooves. The actuating arm is configured to engage with the drive protrusion in a rotational upward direction, and a base is provided with an engaging/disengaging means for freely engaging and disengaging each drive groove from the drive protrusion in correspondence with each drive link. , a bed characterized in that a telescopic driving means is provided between the third driving arm and the support member of the base. (3) The engaging and disengaging means according to claim 1 or 2 moves the second drive link by a linear drive mechanism to open the engagement groove.
A bed characterized by having a configuration that transitions between a state in which it engages with the engagement protrusion of the second drive arm and a state in which it does not engage with it. (4) The linear drive mechanism according to claim 3 is characterized in that the bed is configured to perform linear displacement using a solenoid as a drive source. (5) A bed characterized in that the linear drive mechanism according to claim 3 is constituted by a screw shaft type telescoping drive mechanism driven by a small motor. (6) A bed characterized in that the linear drive mechanism according to claim 3 is constituted by a control cable mechanism. (7) A bed characterized in that the telescoping drive means according to claim 1 or 2 is a motor-driven screw shaft type telescoping drive rod. (8) The foot floor plate according to claim 1 is a bed characterized in that a part of the end side is connected and supported so as to be rotatable only in an upward direction.