JPS6338849Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bed device in which a floor plate provided on a bed frame is divided into a plurality of parts, one of which can be moved up and down.

BACKGROUND ART A bed device is known in which a floor plate provided on a bed frame is divided into a plurality of parts, and the floor plate located in the longitudinal center of the bed frame is provided to be movable up and down. According to this type of bed device, by raising the floor plate, the user's back is lifted and the body arches, allowing the user to stretch their back muscles. You can measure your health improvement while sleeping.

By the way, in the above-mentioned conventional bed device, the floor plate provided at the longitudinal center portion of the bed frame is raised horizontally. Therefore, when the floorboard is raised with the user's back resting against the floorboard, the user's back and lumbar region are also lifted significantly, resulting in the problem that the user cannot fully stretch his or her back muscles.

This idea was made based on the above circumstances,
The purpose is to provide a bed device that allows the user to fully stretch his or her back by preventing the user's lower back from being lifted too much when the floorboard is raised. be.

An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is a bed frame formed in a rectangular frame shape. A headboard 2 is attached to one longitudinal end of the bed frame 1, and a footboard 3 is attached to the other end. Further, within the frame of the bed frame 1, a first floor plate 4, a second floor plate 5, a third floor plate 6, and a fourth floor plate 7 are arranged in order from the headboard 2 side. Each floorboard 4, 5,
Reference numerals 6 and 7 consist of a frame 8 and a wire mesh (not shown) stretched over the frame 8, and on these floorboards there is a pine tress 9 as shown in FIG.
is placed.

The first floor plate 4 has one end located on the footboard 3 side connected to the side plate 1a of the bed frame 1.
One of the pair of transverse rods 10, 10 installed between 1a so as to sandwich the second floor plate 5, which is located on the first floor plate 4 side, is attached by means of support shafts 12, 12 via fixtures 11, 11. Rotatably connected. The second floorboard 5 is vertically movable by a link mechanism 13, which will be described later, provided on the bed frame 1 via the pair of horizontal bars 10, 10. Further, the third floor plate 6 has one end located on the second floor plate 5 side rotatably connected to the other of the horizontal bars 10, 10 by means of support shafts 15, 15 via fixtures 14, 14. has been done. The fourth floor plate 7
is attached with one end and both sides attached to the other end of the third floor plate 6 with the support shaft 1.
6 and 16 are rotatably connected. Rollers 1 are provided on both sides of the other end of this fourth floor plate 7.
7 and 17 are rotatably provided, and these rollers 1
7 and 17 are grounded to a receiving plate 18 provided on the footboard 3 side of the bed frame 1.

The link mechanism 13 is made up of two sets in which a first link 19 and a second link 20 are pivotally connected by a support shaft 21 at a position offset from the center in the longitudinal direction, as shown in FIG. Become. That is, as shown in FIG. 8, the first link 19 and the second link 20 have a length a on one end and a length b on the other end, starting from the support shaft 21. The relationship is a>b. One end of each of these two sets of first links 19, 19 and second link 2
One end of 0 and 20 are connection shafts 21a and 21, respectively.
connected by a. Each first link 19, 19
Upper rollers 22, 22 are rotatably provided on the outer surface of one end, and lower rollers 23, 23 (only one of them is shown) are rotatably provided on the outer surface of one end of each second link 20, 20. . The upper rollers 22, 22 are engaged with a pair of first guide bodies 24, 24 which are provided on the lower surface of the second floor plate 5 along the longitudinal direction of the bed frame 1 and have a U-shaped cross section. Further, the lower rollers 23, 23 are held by the pair of horizontal rods 10, 10 by connecting members 25... at a position lower than the bed frame 1 and parallel to and spaced apart from the first guide bodies 24, 24. A pair of second guide bodies 26, 26 (only one of which is shown) each having a U-shaped cross section are engaged with each other. Further, the other end of the first link 19 is attached to the support shaft 27 to the first guide body 24.
The other end of the second link 20 is pivotally connected to the second guide body 26 by a support shaft 28. That is, the first link 19 and the second link 20 of the link mechanism 13 are connected to the rollers 22 and 23.
The length dimension a side which is one end provided with is located on the first floor plate 4 side, and the length dimension b side which is the other end pivotally connected to the guide bodies 24 and 26 by the support shafts 27 and 28. is located on the third floor plate 6 side.

On the other hand, a drive source 29 in which a speed reducer and a motor are integrated is provided at the end of the lower surface of the bed frame 1 on the side of the footboard 3. This drive source 2
A cylindrical body 30 having a built-in feeding mechanism (not shown) such as a ball screw is connected to the cylindrical body 9 . A drive shaft 31 is inserted into this cylinder 30 and is driven forward and backward by the above-mentioned feeding mechanism. This drive shaft 3
An operating shaft 33 with rollers 32, 32 attached to both ends is provided at the tip of the drive shaft 1 horizontally and at right angles to the drive shaft 31. The rollers 32, 32 are engaged with third guide bodies 34, 34 each having a U-shaped cross section. These third guide bodies 34, 34
is the mounting rod 35 hanging from the horizontal rods 10, 10 above.
... is attached to the lower end.

The operating shaft 33 is engaged with a pair of arms 36, 36 extending obliquely from the bottom surface of one end of the first floor plate 4 toward the second floor plate 5. and,
When the drive shaft 31 is driven in the direction of advancing from the predetermined position shown in FIG. 4, the pair of arms 36, 36 are pressed by the actuation shaft 33, and the first floor plate 4 is moved as shown in FIG. Rotate in the upward direction. Furthermore, an actuating body 37 is fixed to the tip of the drive shaft 31. When the drive shaft 31 is driven in the direction of retracting from the predetermined position shown in FIGS. engage with. Therefore, the first link 19 and the second link 20 rise from the state shown in FIG. 8 as shown in FIG. 9, so that the second floor plate 5 is raised.

Furthermore, from one end of the lower surface of the first floorboard 4,
As shown in FIG. 4, a pair of interlocking rods 38, 38 extend horizontally toward the second floorboard 5. As shown in FIG. At the tips of these interlocking rods 38, 38 are rollers 39, 3.
9 is rotatably provided, and these rollers 39, 3
9 engages with fourth guide bodies 40, 40 which extend horizontally from the lower surface of the third floor plate 6 toward the first floor plate 4 and have a U-shaped cross section. Therefore, when the first floor plate 4 rotates upward, the interlocking rods 38, 38 move in conjunction with each other, and the distal end portions provided with the rollers 39, 39 descend. The guide bodies 40, 40 of are pushed down. As a result, the third floor plate 6 rotates upward about the support shafts 15, 15, and the fourth floor plate 7, whose one end is pivotally connected to the third floor plate 6 by the support shafts 16, 16, moves up. 3
It will rotate upward in the opposite direction to the floor plate 6.
At this time, the rollers 17, 17 provided at the other end of the fourth floor plate 7 roll on the receiving plate 18.

Note that when the first floor plate 4 is in a horizontal state, the lower surface of the free end side of the first floor plate 4 is supported by a receiving crosspiece 41 installed between the side plates 1a, 1a of the bed frame 1.

In the bed device constructed in this way, when the drive shaft 31 is in the neutral predetermined position shown in FIG. 4, the first floor plate 4 is laid down horizontally, and the second floor plate 5 is lowered. In such a state, drive source 2
9 is activated to drive the drive shaft 31 in the direction of protrusion from the cylindrical body 30, the actuation shaft 33 attached to the drive shaft 31 presses the arms 36, 36. Then, the first floor plate 4 is rotated and raised as shown in FIG. This first
As the floor plate 4 rotates upward, the tips of the interlocking rods 38, 38, on which the rollers 39, 39 are provided, descend.
The fourth guide body 4 is
0,40, so the third floor plate 6
The fourth floor plate 7 rotates upward using one end on the floor plate 5 side as a fulcrum, and one end of the fourth floor plate 7 pivotably connected to the third floor plate 6 rotates in a direction in which it rises. Therefore, the user can comfortably sit up on the pinerest 9 while leaning on the first floorboard 4. Also, at this time, the user's legs are supported by the third floorboard 6 that is sloped low toward the first floorboard 4, so the user's legs are
Since the lower back part located on the first floorboard 5 is less likely to shift forward, this also allows the user to comfortably maintain a posture leaning on the first floorboard 4.

On the other hand, when the drive shaft 31 is driven in the backward direction into the cylinder 30 from the predetermined position shown in FIG. It engages with a connecting shaft 21 connected at one end and presses this connecting shaft 21. Then, the first link 1 to which the middle part is pivoted
9 and the second link 20 stand up as shown in FIG. 9 from the fallen state shown in FIG.
The second floor plate 5 attached to this link mechanism 13 will rise. Therefore, pine tress 9
A user lying on his/her back can stretch his or her back because the back part located on the second floorboard 5 is lifted. Moreover, the first link 19 and the second link 20 of the link mechanism 13 have a midway portion shifted from the center where the length dimension on one end side is a and the length dimension on the other end side is b. Since it is pivotally connected by the support shaft 21 and a>b, the second floor plate 5, which is raised by the first and second links 19 and 20, is moved up by the third floor plate 5 as shown in FIG. It is in a state where it is tilted low toward the floor plate 6 side. Therefore, the user's back is lifted up significantly and the lower back is not lifted as much as the back, allowing the user to fully stretch his or her back muscles.

As described above, the present invention provides a bed frame that allows one of the plurality of floor plates provided on the bed frame to be moved up and down and raised by a link mechanism consisting of a first link and a second link. It was set up so that it was tilted. Therefore, when the user uses the floorboard to stretch his/her back, by positioning the back on this floorboard and positioning the lower back on the lower end side of the floorboard in the direction of inclination, the user's lower back will not be lifted up much and the back will be straightened. Since the user is lifted up a large amount, the user can fully stretch the back muscles and exercise effectively.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view of the bed frame, Fig. 2 is a plan view, Fig. 3 is a plan view with the second floor plate removed, and Fig. 4 is a plan view of the bed frame.
The figure is a side view of the first floor plate when it is laid down, FIG.
8 is a side view with the second floor plate lowered, FIG. 9 is a side view with the second floor plate also raised, FIG. 10 is a sectional view taken along the line of FIG. The figure is a sectional view taken along the line XI-XI in FIG. 1... Bed frame, 4... First floorboard, 5
...Second floorboard, 6...Third floorboard, 7...Fourth floorboard
Floor plate, 13... Link mechanism, 19... First link, 20... Second link, 21... Support shaft, 2
9... Drive source.

Claims (1)

[Scope of utility model registration request] The floor plate provided on the bed frame is divided into a plurality of parts, one of which is located approximately at the center in the longitudinal direction of the bed frame, is provided so as to be movable up and down by a link mechanism, and this link mechanism is driven by a drive source. In the bed device that is activated to raise the floor board, the link mechanism has one end pivotally connected to a first guide body provided on the floor board, and the other end pivoted to a second guide body provided on the bed frame. A first link that is slidably provided;
A second guide member having one end slidably attached to the first guide member and the other end pivotally attached to the second guide member.
and a supporting shaft pivoted at a position offset from the longitudinal center of the first link and the second link, and the floor plate includes A bed device characterized in that when driven in an upright direction, the bed device is raised by these links in a state slightly inclined from a horizontal state.