JP2010172497A - Bed device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bed device which can realize stable rise and fall of a frame by a space-saving and simple configuration. <P>SOLUTION: The bed device includes: a base 11; a perpendicular slide mechanism 1 which goes up and down perpendicularly to the base 11; a frame 2 which is pivoted by the perpendicular slide mechanism 1; slide members 3b, 4b which have horizontal slide mechanisms 3, 4 and are placed away from the frame 2, connecting mechanisms 6-8 which are coupled rotatably between the horizontal slide mechanisms 3, 4 and the base 11; and an actuator 5 which is connected with at least one (3) of the horizontal slide mechanisms 3, 4, and moves up and down the frame 2 and the perpendicular slide mechanism 1 by rotating the connecting mechanisms 6-8 by changing the position of the slide members 3b, 4b by operation is prepared. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a bed apparatus, and more particularly to a bed apparatus driven by an actuator, and more particularly to a bed apparatus that can be raised and lowered.

  In Patent Document 1, a cylinder which is disposed under the frame floor on the foot side and can move up and down the foot side of the frame, a plurality of sprockets attached under the frame floor, one end is fixed to the foot side of the base, and an intermediate portion is the frame A bed apparatus has been proposed that includes a chain extending under the floor and having the other end fixed to a head boat and meshed with a plurality of sprockets. According to this bed apparatus, when the cylinder pushes up the foot side of the frame, the chain is stretched and the frame rises while being supported by the chain from the foot side to the head side.

  Patent Document 2 includes a first actuator that is disposed on the head side of the bed and raises and lowers the headboard, and a second actuator that is disposed on the foot side of the bed and raises and lowers the footboard. A bed apparatus is disclosed in which a frame attached between a head board and a foot board is tilted and moved up and down by driving and controlling the actuator.

Japanese Patent No. 3865493 Japanese Patent Laid-Open No. 2005-110789

  According to the bed device of Patent Document 1, since the chain is extended under the floor of the frame, the space under the frame floor is reduced, and the foot side of the frame is first arranged so as to push up the foot side. The problem is that the cylinder is enlarged and the height of the footboard is high, and because the frame is supported from below the floor by the chain, it is difficult to stabilize the frame when raising and lowering the frame. Since the frame is supported by the chain sprocket mechanism, there is a problem in that it is difficult to realize an operation other than raising and lowering, for example, an operation of tilting the frame.

  According to the bed apparatus of patent document 2, in order to implement bed height adjustment, two actuators are required. That is, since two drive sources are provided to realize one function, the free space of the bed apparatus is reduced and the cost is increased. In addition, according to the bed apparatus of Patent Document 2, there is a problem that the control becomes complicated when an operation other than the raising / lowering, for example, when the frame is tilted.

  The objective of this invention is providing the bed apparatus which can implement | achieve the raising / lowering of the flame | frame stable by a space-saving and simple structure.

  In a first aspect, the present invention includes a base, a vertical slide mechanism that moves up and down in a direction perpendicular to the base, a frame pivotally supported by the vertical slide mechanism, and a sliding member. A pair of horizontal slide mechanisms provided apart from each other, a coupling mechanism pivotally coupled between the horizontal slide mechanism and the base, and at least one of the horizontal slide mechanisms, and the sliding by operation There is provided a bed apparatus comprising: an actuator that moves the connecting mechanism to rotate the connecting mechanism to move the frame and the vertical slide mechanism up and down.

(1) Since the frame is pivotally supported by the vertical slide mechanism, the frame is raised and lowered in a stable state that does not cause anxiety to the sleeping person when the frame is raised and lowered, so that the caregiver can work easily. The height can be set.
(2) The horizontal slide mechanism does not need to be provided on the foot side of the bed apparatus. For example, by arranging the horizontal slide mechanism on the head and the middle along the frame front-rear direction, the space on the foot side can be expanded. Furthermore, the footboard can be made smaller or unnecessary. As a result, it is possible to prevent the footboat from interfering with nursing care and outlook.
(3) Although the bed apparatus of the present invention has a pair of slide mechanisms, the frame can be moved up and down by one actuator, so that the necessary mechanism for the bed is mounted in a space-saving manner, Also, the manufacturing cost is suppressed.
(4) Since the frame is lifted and lowered by the sliding of the pair of horizontal slide mechanisms and the frame, the frame is lifted and lowered in a stable state.
(5) In the present invention, since the frame is lifted and lowered by a simple mechanism, it is easy to add an operation other than the lift, for example, a frame tilt operation.

It is a perspective view of the bed apparatus concerning one example of the present invention. It is a mechanism figure of the bed apparatus shown in FIG. It is the elements on larger scale of the engagement / disengagement mechanism shown in FIG. (A)-(C) are the operation | movement diagrams of the bed apparatus shown in FIG.

  In an embodiment of the present invention, the actuator is attached to the frame, preferably built in the frame, so that a predetermined empty space is secured between the frame and the base, and the storage space is expanded. Contribute to.

  In an embodiment of the present invention, the frame is pivotally supported by the vertical slide mechanism via a hinge, and the inclination angle is changed. Thus, the frame can be lifted and lowered in a stable state by being pivotally supported by the vertical slide mechanism.

  In the bed apparatus according to the embodiment of the present invention, the coupling mechanism includes a parallel vertical link and a horizontal link horizontally placed between the vertical links, and the frame is moved up and down by the rotation of the vertical link.

  In the bed apparatus according to an embodiment of the present invention, an engagement / disengagement mechanism is provided on one of the vertical link and the horizontal link, and when the engagement / disengagement mechanism is restricted, the frame moves up and down in the vertical direction, and When the release mechanism is released, the inclination angle of the frame changes and the frame tilts. As described above, the bed apparatus according to the present invention can be easily added with an operation other than the raising / lowering, that is, the tilting operation of the frame, by adding the engagement / disengagement mechanism.

  In the bed apparatus according to an embodiment of the present invention, the engagement / disengagement mechanism includes a long hole and a hook provided on one of the vertical link and the horizontal link, and a pin guided by the long hole on the other. The vertical link and the horizontal link are regulated by engaging the hook with the pin.

  An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a bed apparatus according to an embodiment of the present invention. FIG. 2 is a mechanism diagram of the bed apparatus shown in FIG.

  1 and 2, a bed apparatus according to an embodiment of the present invention is supported by a base 11, a vertical slide mechanism 1 that moves up and down in a direction perpendicular to the base 11, and the vertical slide mechanism 1. A pair of horizontal slide mechanisms 3, 4 having a frame 2 and sliding members 3 b, 4 b and spaced apart from each other, and rotating between the horizontal slide mechanisms 3, 4 and the base 11 The connecting mechanism (6-8) and the horizontal sliding mechanism 3, 4 are connected to at least one of the freely connecting mechanism (6-8), and the position of the sliding members 3b, 4b is changed by operation to thereby change the position of the connecting mechanism (6- 8) by rotating the frame 2 and the actuator 5 that moves the vertical slide mechanism 1 up and down.

  Since the frame 2 is pivotally supported by the vertical slide mechanism 1 via the pin 2a of the hinge 1a, the inclination angle of the frame 2 is variable. The vertical slide mechanism 1 moves up and down while being guided by a vertical slide guide 11a integrated with the base. As the vertical slide mechanism 1 and the vertical slide guide 11a, a linear motion mechanism guided by a roller or a ball can be used.

  The actuator 5 is attached to or built in the frame 2 so that a predetermined empty space is expanded between the frame 2 and the base 11. The actuator 5 has a retractable piston 5a and a cylinder 5b pivotally supported by the frame 2.

  Of the plurality of horizontal slide mechanisms 3, 4 that can swing integrally, the first horizontal slide mechanism 3 is built in the head side of the frame 2, and the second horizontal slide mechanism 4 is an intermediate part of the frame 2. Built in. With such an arrangement, the bed apparatus according to the present embodiment secures a large empty space 10 on the foot side and increases the degree of freedom in designing the footboard.

  The connection mechanism (6 to 8) includes vertical links 6 and 7 parallel to each other and a horizontal link 8 horizontally mounted between the vertical links 6 and 7, and the frame 2 is rotated or swung by the vertical links 6 and 7. Can be moved up and down. The plurality of vertical links 6 and 7 are connected between the plurality of horizontal slide mechanisms 3 and 4 and the base 11 so as to be rotatable or swingable. A horizontal link 8 is swingably coupled to the plurality of vertical links 6 and 7. By the horizontal link 8, the first and second vertical links 6 and 7 can constitute a parallel link mechanism. The second vertical link 7 and the horizontal link 8 are provided with an engagement / disengagement mechanism 9 that releasably holds the connection between them. When the engagement / disengagement mechanism 9 is restricted, the frame 2 can be raised or lowered in the vertical direction, and when the engagement / disengagement mechanism 9 is released, the inclination angle of the frame 2 can be changed and the frame 2 can be tilted.

  In particular, referring to FIG. 1, the first and second vertical links 6, 7 are symmetrically arranged on the left and right along the width direction of the frame 2. Are connected to each other by a pin 6b, and the left and right second vertical links 7, 7 are connected to each other by a pin 7b. Thus, since the 1st and 2nd vertical links 6 and 7 are symmetrically arranged, respectively, below, the several vertical links 6 and 7 of one side are demonstrated.

  One end of the first vertical link 6 is pivotally supported on the base 11 via a pin 6a, the other end is pivotably connected to the tip of the piston 5a via a pin 6b, and an intermediate portion is laterally connected via a pin 6c. The one end of the link 8 is swingably connected. A roller 3b is attached coaxially with the pin 6b to a connection point between one end of the first vertical link 6 and the piston 5a. One end of the second vertical link 7 is pivotally supported on the base 11 via a pin 7a, and the other end is attached to a roller 4b coaxially with the pin 7b. The part is swingably connected. The connection between the second vertical link 7 and the horizontal link 8 by the pin 7 c can be released by the engagement / disengagement mechanism 9.

  The first horizontal slide mechanism 3 is attached to the guide 3a formed on the frame 2 and extending along the front-rear direction of the frame 2, and one end of the first vertical link 6 and the piston 5a. And a roller (sliding member) 3b slidable inside. The second horizontal slide mechanism 4 is attached to one end of a guide 4a formed on the frame 2 and extending in the front-rear direction of the frame 2 and the second vertical link 7, and is slidable in the guide 4a. A roller (sliding member) 4b.

  FIG. 3 is a partially enlarged view of the engagement / disengagement mechanism shown in FIG. 2 and 3, in the engagement / disengagement mechanism 9, a long hole 8a and a hook 9b are provided in the horizontal link 8, and a pin 7c guided by the long hole 8a is provided in the second vertical link 7. By engaging the hook 9b with 7c, the second vertical link 7 and the horizontal link 8 are regulated to be releasable. Further, the engagement / disengagement mechanism 9 has an operation lever 9a that is pivotally supported by the lateral link 8 and swings the hook 9b.

  When the engagement / disengagement mechanism 9 is in a restricted state, that is, when the hook 9b is engaged with the pin 7c, the first and second vertical links 6 and 7 are constrained to each other by the horizontal link 8 and are parallel links. Then, the frame 2 is moved up and down along the vertical direction. When the engagement / disengagement mechanism 9 is in the released state, that is, when the hook 9b is not engaged with the pin 7c, the pin 7c is displaceable in the long hole 8a. The vertical link 7 can rotate or swing independently of the first vertical link 6. Thereby, the tilting operation of the frame 2 described later is enabled.

  The operation of the bed apparatus according to the present embodiment described above will be described. 4 (A) to 4 (C) are operation diagrams of the bed apparatus shown in FIG. 1, in which FIG. 4 (A) shows a state in which the frame is at the highest position, and FIG. 4 (B) shows a frame. FIG. 4C shows a state where the frame is at the lowest position.

[Highest frame]
Referring to FIG. 4A, the first and second vertical links 6 and 7 constituting the parallel link by the lateral link 8 and the engaging / disengaging mechanism 9 in the restricted state are caused by the actuator 5 being extended. Rotating or swinging upward. The frame 2 biased from the rollers 3b and 4b, which are sliding members of the horizontal slide mechanisms 3 and 4, is at the highest position along the vertical direction. Since the frame 2 is attached to the vertical slide mechanism 1 via the hinge 1a, the horizontal state of the frame 2 is maintained even at the highest position.

[Frame tilt]
3 and 4 (A) to 4 (B), when the operation lever 9a is operated counterclockwise in the drawing to release the engagement / disengagement mechanism 9, the pin 7c is inserted into the elongated hole 8a. The second vertical link 7 rotates or swings clockwise in the drawing in accordance with this displacement, and the roller 4b attached to one end of the second vertical link 7 is displaced. As shown in FIG. 4 (B), the frame 2 is tilted by sliding in the guide 4a toward the foot side, the tilt angle is changed, and the foot side is lowered.

[Lowest frame]
Referring to FIGS. 4A to 4C, the first and second vertical links 6 and 7 constituting the parallel link by the lateral link 8 and the connecting / disengaging mechanism 9 in the connected state are the actuator 5 Is reduced or rotated clockwise (the coupling mechanisms (6 to 8) are rotated), and the rollers 3b and 4b which are sliding members of the horizontal slide mechanisms 3 and 4 are respectively rotated. The frame 2 that slides in the guides 3a and 4a toward the foot side and is urged by the rollers 3b and 4b descends to the lowest position along the vertical direction. Since the frame 2 is attached to the vertical slide mechanism 1 via the hinge 1a, the horizontal state of the frame 2 is maintained even when lowered or at the lowest position.

  The bed device of the present invention can be suitably used as a bed device for care and hospital because the bed frame height can be freely set at a position where care is easy. Moreover, the bed apparatus of the present invention is also suitably used as a normal bedroom bed apparatus having an advanced function.

1 Vertical slide mechanism (vertical slide head)
1a hinge 2 frame 2a pin 3 first horizontal slide mechanism 3a guide 3b roller (sliding member)
4 Second horizontal slide mechanism 4a Guide 4b Roller (sliding member)
DESCRIPTION OF SYMBOLS 5 Actuator 5a Piston 5b Cylinder (6-8) Connection mechanism 6 1st vertical link 6a, 6b, 6c pin 7 2nd vertical link 7a, 7b, 7c pin 8 Horizontal link 8a Long hole 9 Engaging / disengaging mechanism 9a Operation lever 9b Hook 10 Empty space (foot side empty space)
11 Base 11a Vertical slide guide (guide post)

Claims (6)

Base and
A vertical slide mechanism that moves up and down vertically with respect to the base;
A frame pivotally supported by the vertical slide mechanism;
A pair of horizontal slide mechanisms having sliding members and spaced apart from the frame;
A connection mechanism rotatably connected between the horizontal slide mechanism and the base;
An actuator that is connected to at least one of the horizontal slide mechanisms, and that moves the sliding member by operation to rotate the coupling mechanism to move the frame and the vertical slide mechanism up and down;
A bed apparatus comprising:   The bed apparatus according to claim 1, wherein the actuator is attached to the frame.   The bed apparatus according to claim 1, wherein the frame is pivotally supported by the vertical slide mechanism via a hinge, and an inclination angle is changed.   4. The connection mechanism according to claim 1, wherein the connection mechanism includes a parallel vertical link and a horizontal link placed between the vertical links, and the frame is moved up and down by the rotation of the vertical link. 5. A bed apparatus according to claim 1.   One vertical link and one horizontal link are provided with an engagement / disengagement mechanism, and when the engagement / disengagement mechanism is restricted, the frame moves up and down in the vertical direction, and when the engagement / disengagement mechanism is released, the inclination angle of the frame changes. The bed apparatus according to claim 4, wherein the frame is tilted.   The engagement / disengagement mechanism has a long hole and a hook provided on one of the vertical link and the horizontal link, and a pin guided by the long hole is provided on the other, and the hook is engaged with the pin. The bed apparatus according to claim 5, wherein the vertical link and the horizontal link are restricted.

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