JPS583582Y2 - foldable mattress - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a foldable pinerest in which the upper body support member can be raised and lowered.

In the conventional bed in which the upper body support member can be raised and lowered, the upper body support member and the cylinder device attached to the lower surface of the upper body support member intersect in a T-shape or the like and rotate upward, occupying the space behind the upper body support member. However, there was a drawback that objects around the bed or the human body could hit the upright cylinder device.

The present invention solves the above-mentioned drawbacks, and its gist is that when the upper body support member stands up, the cylinder device stands up along with the upper body support member, and the back of the upper body support member is left in space. It is in the point that it was made to be.

Hereinafter, the foldable pinerest of the present invention will be described in detail with reference to the accompanying drawings showing embodiments.

As shown in FIGS. 1 and 2, the mattress of the present invention consists of three components: an upper body support member 1, a waist support member 2, and a leg support member 3.

The support members 1, 2.3 have the same width, the waist support member 2 and the leg support member 3 have the same length, and the upper body support member 1 is longer (about twice as long). It is formed like this.

The upper body support member 1 is a mat 4 whose lower half is hollow.
A mouth-shaped rod 5 whose base end is bent upward is fixed to the lower opening edge of the mat 4, and a ■-shaped rod 6, which is slightly narrower and shorter than the eye-shaped rod 5, is provided separately from the mat 4. The double-eyed rod 5,
The bent upper end portions of 6 are pivotably connected to each other by shafts 7, 7.

A motor pump 8 and a sealed oil tank 9 are fixed to one corner of the gate-shaped rod 6, and the rear end of the cylinder device is pivoted to an angle 10 that extends between the proximal portions of the eye-shaped rod 6. The front end of the piston rod of the cylinder device is pivotally connected to an angle 11 horizontally suspended between the center portions of the mouth-shaped rods 5, and the cylinder device 12 is provided so as to be movable up and down via pivots 12a and 20a. There is.

The relationship among the motor pump 8, oil tank 9, and cylinder device 12 is as follows.

One chamber 13 of the cylinder device 12 and the oil tank 9 are connected by a conduit 16 in which a motor pump 8 and a check valve 15 are inserted, and a conduit 18 in which a solenoid valve 17 which can be switched between a cutoff and a communication state is inserted. In addition, the other chamber 14 and the oil tank 9 are communicated with each other through a ventilation pipe 19.

20 is a piston rod, and the free end of the piston rod is rotatably attached to the angle 11 via a pivot 20a, and is located at a predetermined position near the outer periphery of a piston plate 31 fixed to the base of the piston rod 20. is provided with an overflow valve 30 that allows oil to pass from one chamber to the other only when the piston rod 20 is fully extended.

A plate member 21 is integrally fixed to the lower surface of the mat 4, and is supported by the base end and tip end of the ■-shaped rod 5.

Further, 20' is a spring that biases the piston rod 20 in the retracting direction.

The lumbar support member 2 is a mat 21 whose lower half is hollow.
A pair of support rods 22.22 whose distal and proximal ends are respectively bent upward are fixed to the left and right edges of the lower end, and an approximately n-shaped leg is formed between the center portions of both support rods 22.22. The section 23 is rotatably mounted horizontally.

In addition, 24 is a stopper that restricts the rotation of the leg rod 23, and 25
is a plate integrally fixed to the lower surface of the mat 21, and is supported by the tip and base ends of the support rods 22 and 22.

In the leg support member 3, a mouth-shaped rod 28 whose base end is bent upward is fixed to the lower edge of a mat 26 with a plate 27 sandwiched in the center.

Note that the plate material 27 is supported by the 0-shaped rod 28.

Further, the upper body support member 1, the waist support member 2, and the leg support member 3 are the upper ends of the upwardly bent portions of the ■-shaped rod 5, the support rods 22, 22, and the eye-shaped rods 28 that are close to each other. The members are rotatably connected to each other by connecting rods 29, 29, . . . , respectively.

In addition, the 100-shaped rod 5 and the angle 11 are omitted, and the piston 20 is
The tip of the upper body support member 1 may be attached directly to the lower surface of the upper body support member 1.

The function of the foldable pinerest constructed as described above is as follows.

Normally, by arranging the upper body support member 1, the waist support member 2, and the leg support member 3 so as to form the same plane, it can be used as a normal mattress.

When raising the upper body support member 1, oil in the oil tank 9 is supplied to one chamber 13 of the cylinder device 12 by operating a switch (not shown), and the piston rod 20
is projected, and the shaft 7 and the pivot shaft 12a at the rear end of the cylinder
Since the piston rods 20 and 20 are eccentrically provided vertically and longitudinally, the cylinder rotates upwards about the pivot shaft 12a in accordance with the amount of protrusion of the piston rod 20, and the upper body support member 1 rotates about the shaft 7 as its center of rotation. It rotates upward and the upper body support part 1 is raised.

(See Figure 2) When used as a chair, after rotating the arm support member 3 so as to stack it on the waist support member 2, the upper body support member 1 may be raised in the same manner as described above.

In this case, if the leg rod 23 is rotated so as to engage with the stopper 24, both the waist support member 2 and the leg support member 3 can be tilted.

When the upper body support member 1 is to be tilted down, the solenoid valve 17 may be activated by operating another switch (not shown).

When operating the motor pump 8 or the solenoid valve 17,
Since the oil tank 9 and the other chamber 14 of the cylinder device 12 are communicated through the pipe line 19, there is almost no pressure change within the oil tank 9.

The mechanism for raising and lowering the upper body support member 1 is not limited to the one described above, and various mechanisms such as one that selectively supplies oil to the compartment of a cylinder device, one that uses a gear mechanism, etc. can be used. Can be used.

The foldable pine tress of the present invention as described above is
By placing it on an existing bed, not only can the bed be raised and lowered, but also one cylinder device is attached to the bottom surface of the mat 4, and one end of the cylinder device is connected to an n-type rod 6.
When the upper body support member stands up by pivoting the other end to the lower surface of the mat, the protruding piston and cylinder also stand up along the lower surface of the upper body support member, and the back of the upper body support member always becomes a space, and the mouth shape on the floor Since the cylinder device standing between it and the rod 6 was prevented from crossing the space,
This is an excellent device that has the practical effect of preventing things around the pinerest and the limbs of people standing up during nursing care, etc. from coming into contact with the cylinder device, and also has a good appearance and can be organized in an extremely compact manner. It is.

[Brief explanation of the drawing]

Fig. 1 is a perspective plan view showing the pinerest of the present invention, Fig. 2a is a sectional view taken along line II-II in Fig. 1, Fig. 2 is a sectional view showing the upper body support member in the raised state, and Fig. 3 1 is a sectional view taken along line III-III in FIG. 1, and FIG. 4 is a hydraulic circuit diagram. 1... Upper body support part, 2... Waist support member, 3... Leg support member.

Claims (1)

[Scope of utility model registration request] A plurality of mat members consisting of an upper body support member incorporating a reinforcing member so as not to bend easily and lower body support members such as the waist and legs are rotatably connected to each other about a shaft 7, and the bottom of the upper body support member 1 is A one-shaped rod 6 whose base end is bent upward is loosely fitted into the semi-hollow part, and the bent upper end is rotatably pivotally connected to the shaft 7 of the upper body support member 1. An angle 10 is horizontally suspended between the bent proximal ends of the rod 6 on both sides, and the rotating proximal end of a cylinder device for raising and lowering the upper body support member is pivotally connected to the angle 10. The end is attached to the lower surface of the upper body support member 1, and a motor pump for driving the cylinder device, an oil tank, etc., and a mechanism for raising and lowering the mat member are attached to the flat bent part-corner opposite to the bent base end of the mouth/shaped rod 6. A foldable pine tress characterized by being fixedly fixed to the pine tree.