JPH0638727U - Lifting device for the floor of a bed, etc. - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an elevating device that interlocks and raises adjacent floors with a very simple structure, as in the case of a back floor and a waist floor in a bed. thing. [Structure] On a support arm 12 projecting from one side 6a on the rotation axis side of a main drive floor 6 which is rotatably fixed to the floor support frame 2 and can be raised and lowered by a suitable drive means. In addition, one side 7a of the driven floor 7 adjacent thereto is supported, and the other side 7b of the driven floor 7 is rotatably fixed to the floor support frame 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a floor raising / lowering device in a bed or the like, and more specifically, to a moving floor portion such as a back floor portion and a driven floor such as a waist floor portion adjacent to the driving floor portion, which are provided to be able to move up and down by appropriate driving means. The present invention relates to an elevating / lowering device for a floor part, which is configured so as to move up and down in conjunction with each other.

[0002]

[Prior art]

 2. Description of the Related Art As a bed lifting device for a bed or the like, there is a device in which the entire floor part is divided into a back floor part, a waist floor part, a leg floor part, etc., and each is provided so that it can be lifted and lowered. In this case, for example, in order to prevent the waist part from slipping below the bed when the back floor is rotated and raised, the waist floor should be lowered in conjunction with the lifting of the back floor. ing.

As described above, as a mechanism for raising and lowering the back floor portion as the main moving floor portion and the waist floor portion as the follower floor portion according to the raising and lowering of the back floor portion, a link mechanism for raising and lowering the back floor portion, which is the main moving floor portion, is used. In addition, a link mechanism for raising and lowering a waist floor, which is a driven floor, is generally connected by a connecting member or the like so that the raising and lowering operations of the both are interlocked.

[0004]

[Problems to be solved by the device]

 However, as described above, when linking the link mechanism for raising and lowering the moving floor such as the back floor with the link mechanism for raising and lowering the driven floor such as the waist floor, both floors are raised and lowered. Since many links are required, the structure of the movable part is complicated, the manufacturing of the device is troublesome, and the manufacturing cost is high.

In view of this, the present invention provides a floor raising / lowering device for a bed or the like in which adjacent floors can be interlocked with each other with an extremely simple structure as in the case of the back floor and the waist floor. It is something to do.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a floor lifting device according to the present invention has a rotary shaft for a driving floor, one side of which is rotatably fixed to a floor support frame and is vertically movable by an appropriate drive means. One side of the driven floor adjacent to the supporting arm protruding from one side of the side is supported, and the other side of the driven floor is rotatably fixed to the floor support frame. Is the gist.

[0007]

[Action]

 The floor raising / lowering device according to the present invention is constructed as described above, and when the driving floor is rotated and raised by the driving means, the floor of the rotation shaft side of the floor is moved along with the elevation of the driving floor. The supporting arm protruding from one side to the adjacent floor side rotates, and the driven floor formed by supporting the one side on the supporting arm rotates the other side rotatably fixed to the floor support frame. It rotates around the center. That is, when the driving floor is pivotally raised by the drive means in a state where both floors are horizontal, the supporting arm protruding from the main floor is pivotally lowered as the main floor is pivotally raised. , One side of the driven floor supported on the supporting arm swings down around the other side. Further, when the driving bed, which has been rotated and raised as described above, is rotated downward by the drive means to return to the horizontal state in the opposite manner to the above, the driving bed is rotated and lowered, and the driving bed is then lowered. The supporting arm projecting from the arm pivots upward, and one side of the driven floor supported by the supporting arm pivots around the other side and returns to the horizontal state again.

[0008]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the drawings.

FIG. 1 shows an embodiment of a bed 1 which adopts a floor raising / lowering device according to the present invention. In the figure, reference numeral 2 is a floor supporting frame, and 3 and 4 are the floors, respectively. Headboards and footboards are provided in front of and behind the part support frame 2, and 5 is a pedestal that supports the floor support frame 2 so that it can be lifted and lowered by an elevating mechanism as appropriate. The floor portion supported on the floor portion support frame 2 is divided into a back floor portion 6, a waist floor portion 7, leg floor portions 8, 9 and the like as shown in the figure. The back floor 6 and the waist floor 7 adjacent to the back floor 6 are configured to move up and down in conjunction with each other by the lifting device according to the present invention. It is provided so as to be able to move up and down by a drive means, and a waist floor 7 as a driven floor adjacent to this is provided so as to move up and down in conjunction with the up and down movement of the back floor 6.

As shown in FIGS. 2 and 3, the back floor 6 has one side 6 a rotatably fixed to a mounting plate 10 projecting upward from the floor support frame 2 by a rotary shaft 11. At the same time, supporting arms 12 ... Are horizontally provided at three positions on one side 6a of the rotary shaft 11 in the direction of the adjacent waist floor portion 7. On the other hand, the waist floor 7 adjacent to the back floor 6 supports one side 7a thereof on a support arm 12 projecting from the back floor 6, and the other side 7b of the waist floor 7 is Further, together with one side 8a of the leg floor portion 8 adjacent to the waist floor portion 7, a pivot shaft 14 is rotatably fixed to a mounting plate 13 projecting upward from the floor support frame 2.

In the floor raising / lowering device according to the present invention as described above, the back floor 6 which is the main floor is rotated from the horizontal state shown in FIG. When the upper arm 11 is rotated upward, the support arm 12 protruding from one side 6a of the back floor 6 pivots downward and is a driven floor portion supported on the support arm 12. One side 7a of the waist floor portion 7 rotates downward about the rotation axis 14 of the other side 7b of the waist floor portion 7 and the floor support frame 2, and the back floor portion 6 and the waist floor portion 7 are separated from each other. Move up and down in conjunction. As shown in FIG. 4, when the back floor 6 further rotates and the support arm 12 moves below the floor support frame 2, one side 7a of the waist floor 7 moves away from the support arm 12 and the floor support frame 2 The waist floor 7 is abutted and supported on the upper side, and the downward rotation of the waist floor 7 is restricted. In contrast to the above, when the back floor 6 which is the main bed is rotated downward by the drive means from the state of FIG. Engage and rotate it upward, and the waist floor 7 which is the driven floor returns to the original horizontal state shown in FIG.

As described above, according to the floor raising / lowering device of the present invention, when the back floor 6 which is the main moving floor is appropriately moved up and down by the lifting means, the back floor 6 adjacent to the back floor 6 is driven floor. When the back floor 6 is rotated and lifted, one side 7a of the waist floor 7 on the back floor 6 side is lowered downward when the back floor 6 is rotated and the lower back portion 6 is lowered. It is possible to prevent the downward shift of the. When the back floor 6 is returned to the horizontal state, the waist floor 7 is also returned to the horizontal state in conjunction with this. Moreover, the interlocking mechanism of the back floor 6 and the waist floor 7 is a complicated movable part for raising and lowering the waist floor 7 and interlocking the waist floor 7 with the back floor 6 as in the conventional case. Without the need for supporting the one side 7a of the waist floor 7 with the support arm 12 projecting from one side 6a of the back floor 6 which is the active floor to the side of the waist floor 7 which is the driven floor. Since this is an extremely simple structure, the manufacturing of the device is easy and the manufacturing cost can be reduced.

Various mechanisms can be adopted as the elevating mechanism of the back floor 6 as the main moving floor, and are not particularly limited. As shown in FIGS. 3 and 4, the raising / lowering mechanism of the back floor 6 in the example shown in FIG. 3 is pushed up from a horizontal rod 15 which is rotatably installed with respect to the back floor 6 in the lateral direction of the back floor 6. An arm 16 is provided so as to project, and the push-up arm 16 is rotatably fixed to the lower side of the back floor 6, and the tip of the push-up arm 16 is rotatably connected to the drive member 17. A trochanter 18 attached to a connecting portion with the driving member 17 is slidably engaged with a guide portion 19 provided on the floor supporting frame 2 below the back floor portion 6. The guide portion 19 includes an upward guide rail 20 that rises in a curved shape from one side 6 a of the back floor 6 on the rotating shaft 11 side toward the other side of the back floor 6, and the guide rail 20 is mounted on the guide rail 20. Further, a trochanter 18 attached to a connecting portion of the tip end of the push-up arm 16 with the driving member 17 is slidably engaged.

Then, when the back member 6 is moved from the horizontal state shown in FIG. 3 to the left side in the drawing by an appropriate drive means, the tip of the push-up arm 16 connected to the drive member 17 rolls. The child 18 moves along the upward guide rail 20 of the guide portion 19 to the upper left in the figure, and the horizontal rod 15 fixed to the base end of the push-up arm 16 connects the back floor 6 and the floor support frame 2 to each other. By rotating upward about the rotating shaft 11, the back floor 6 is rotated and raised as shown in FIG. When the drive member 17 is moved to the right in the figure from the state where the back floor 6 shown in FIG. 4 is rotated and raised, the tip of the push-up arm 16a connected to the tip of the drive member 12 is reversed, contrary to the above. The trochanter 18 moves to the lower right in the figure along the upward guide rail 20 of the guide portion 19, and the lateral rod 15 at the base end of the push-up arm 16 rotates the back floor 6 and the floor support frame 2. By rotating downward about the shaft 11, the back floor 6 returns to the horizontal state shown in FIG.

Further, as shown in FIGS. 3 and 4, the leg floor portion 8 is provided with a mounting plate 13 projecting upward from the floor portion support frame 2 on one side thereof by means of a rotating shaft 14 to the waist floor portion 7. The lower side of the leg floor 8 by projecting the push-up arm 22 from a horizontal rod 21 that is fixed rotatably together with the leg and rotatably installed on the leg floor 8 in the lateral direction. The push-up arm 22 is rotatably fixed to the upper end of the push-up arm 22, and the tip of the push-up arm 22 is rotatably connected to the tip of the drive member 23. The child 24 is slidably engaged with a guide portion 25 provided on the floor support frame 2 below the leg floor 8. The guide portion 25 is provided with a horizontal upward guide rail 26, and the trochanter 24 attached to the connecting portion of the push-up arm 22 and the driving member 23 at the tip of the push-up arm 22 is slidably engaged with the guide rail 26. It

Then, when the leg member 8 is moved horizontally from the horizontal state shown in FIG. 3 to the right side in the drawing by an appropriate drive means, the tip of the push-up arm 22 connected to the tip of the drive member 23 is moved. Is moved by the trochanter 24 along the horizontally upward guide rail 26 of the guide portion 25 to the right in the figure, and the horizontal rod 21 fixed to the base end of the push-up arm 22 is connected to the leg floor 8 and the floor support frame 2. As shown in FIG. 4, the leg floor 8 is pivotally raised by pivoting upward about the pivot shaft 14 of the. Further, when the driving member 22 is moved leftward in the drawing from the state where the leg floor portion 8 shown in FIG. 4 is rotated and raised, contrary to the above, the pushing-up arm 22 connected to the tip of the driving member 20. The tip of the arm moves to the left in the figure along the horizontally upward guide rail 26 of the guide portion 24 by the trochanter 24, and the lateral rod 21 at the base end of the push-up arm 19 supports the leg floor 8 and the floor. By pivoting downward about the pivot shaft 14 with the frame 2, the leg floor 8 returns to the horizontal state shown in FIG.

According to the lifting mechanism for the back floor 6 and the leg floor 8 as described above, the base ends of the push-up arms 16 and 22 that rotate the back floor 6 and the leg floor 8 are rotated and lifted. The back floor portion 6 and the leg floor portion 8 to be rotated are rotatably fixed to the lower sides, and the tips of the push-up arms 16 and 22 connected to the tips of the drive members 17 and 23 are guided by the trochanters 18 and 24, respectively. Since the parts 19 and 25 are configured to slide along the upward guide rails 20 and 26, they are connected to the tips of the push-up arms 16 and 22 and the ends when the back floor 6 and the leg floor 8 are moved up and down. The tips of the driving members 17 and 23 do not project downward from the floor support frame 2, and even if objects are placed below the floor support frame 2, they may come into contact with and damage them. Absent. Moreover, the only movable member in the lifting device for each floor is the push-up arms 16 and 22 connected to the drive members 17 and 23, and the device structure is simple and easy to manufacture. Not only the cost can be reduced, but also the back floor 6 and the leg floor 8 can be smoothly moved up and down, and there is no fear of failure.

Further, in the above case, the mounting positions and lengths of the push-up arms 16 and 22 rotatably fixed to the back floor 6 and the leg floor 8 and the tips of these push-up arms 16 and 22 are set. By appropriately setting the tracks of the upward rails 20 and 26 for guiding the guide portions 19 and 25, the back floor portion 6 and the leg floor portion 8 can be moved up and down at a desired rotation angle and rotation speed. .

[0019]

[Effect of device]

 As described above, according to the floor raising / lowering device of the present invention, when the main moving floor such as the back floor is appropriately moved up and down by the raising / lowering means, the back floor adjacent to the same moves as the driven floor. As it moves up and down, for example, when the back floor is rotated and lifted, one side of the back floor adjacent to the back floor lowers downward, and the waist portion shifts below the bed. Can be prevented. When the back floor, which is the main moving bed, is returned to the horizontal state, the waist floor, which is the driven floor, is also returned to the horizontal state in conjunction with this. In addition, as the interlocking mechanism of the above-mentioned driving bed and driven bed, the complicated moving parts for linking the driving bed and driven bed as in the past are not required, and Since the structure is so simple that only one side of the driven floor is supported by the supporting arm protruding from one side to the driven floor side, the device can be manufactured easily and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a bed according to an embodiment of the present invention that employs a floor lifting device.

FIG. 2 is a simplified perspective view of a floor lifting device.

FIG. 3 is a side cross-sectional view of essential parts of a back floor portion, a waist floor portion, and a leg floor portion in a horizontal state.

FIG. 4 is a side sectional view of a main part of a back floor portion, a waist floor portion, and a leg floor portion after being rotated.

FIG. 5 is an enlarged side view for explaining a main part of a lifting device for a waist floor.

[Explanation of symbols]

 1 Bed 2 Floor support frame 3 Headboard 4 Footboard 5 Leg stand 6 Back floor 7 Waist floor 8 Leg floor 9 Leg floor 10 Mounting plate 11 Rotating shaft 12 Support arm 13 Mounting plate 14 Rotating shaft 15 Horizontal rod 16 Push-up arm 17 Drive member 18 Roller 19 Guide 20 Guide rail 21 Side rod 22 Push-up arm 23 Drive member 24 Roller 25 Guide 26 Guide rail

Claims (1)

[Scope of utility model registration request] 1. A support arm projecting from one side of a rotation shaft side of a driving floor part, which is rotatably fixed to the floor part support frame and can be raised and lowered by a drive means as appropriate. An elevator device for a floor portion of a bed or the like, characterized in that it supports one side of a driven floor portion adjacent to the above-mentioned floor portion and rotatably fixes the other side of the driven floor portion to a floor portion support frame.