JP3065421U - Mechanized cot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure in which a user lying on a bed is provided with substantial support and the user can operate from inside the bed. The vehicle has a front frame assembly and a rear frame assembly pivotable with respect to the front frame assembly. The transmission includes a motor fixedly mounted below the bed, a first connecting rod pivotally connected to the drive rod, and a second connecting rod pivotally mounted to the first connecting rod. , A third connecting rod connected to the second connecting rod. The tube fixed below the bed is
It is for receiving the connecting rod through it,
It is also due to the limitation of the second connecting rod, so that the second connecting rod can be moved only in the horizontal direction, not in the vertical direction. Further, the first connector is fixedly connected to the front frame assembly and pivotally connected to the drive rod, so that the second connector is connected between the rear frame assembly and the third connection rod. And the patient's torso and legs are supported simultaneously or only on the torso.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a mechanized folding bed structure that provides substantial support to a user lying on the bed. This arrangement uses a single motor and a continuous linkage pivotally connected to the motor to provide alternate support to the torso and legs of the user.

[0002]

[Prior art]

 A number of patents have been published dealing with the function and structure of in-patient beds. Functionally, these beds have one thing in common. That is, to provide support to the torso and legs of a patient lying in bed. A collapsible bed typically used for a patient has a handle, a shaft connected to the handle, and a plurality of linkages pivotally connected to the shaft. When the handle is rotated, the threaded shaft is driven to rotate in the same direction as the handle. Rotation of the shaft thus rotates the bed rear and / or front angularly and lifts them upward. The movement of the back and front of the bed causes the patient's torso and legs to tilt up separately or simultaneously. The above arrangement provides substantial support for the patient's torso and legs.

[0003]

[Problems to be solved by the invention]

 However, operation of this type of bed requires a person who is not in bed to manually adjust the bed by turning the handle. To eliminate this drawback, a new structure has been developed in which at least one motor is mounted on the underside of the bed, so that the upward movement of one or both of the front and back of the bed can be reduced by the patient in bed. It can be driven by a motor that can be operated. However, while conventional mechanized beds increase the efficiency of providing patient support, they are complex and expensive.

[0004] It is therefore an object of the present invention to provide a mechanized folding bed that obviates or mitigates the above-mentioned problems, and to provide substantial support to the patient's legs lying on the bed. Another object of the present invention is to provide a bed capable of selectively moving a rear portion.

[0005]

[Means for Solving the Problems]

 A foldable bed according to the present invention includes a front frame assembly including a first frame member and a second frame member pivotally connected to the first frame member, a third frame member and the third frame member. And a fourth frame member pivotally connected to the frame member. In addition, the foldable bed includes a motor, a drive rod extendably connected to the motor, a first connection rod pivotally connected to the drive rod, and a pivotal connection to the first connection rod. And a tube fixedly mounted under the rear frame assembly for receiving the second connecting rod therethrough.

The first frame member has a first connector fixedly connected thereunder and pivotally connected to the drive rod. The third frame member has a second connector fixedly connected thereunder and pivotally connected to a free end of the drive rod. When the motor is operated, the drive rod expands and contracts, the first and second connecting rods move accordingly, and the first frame member and the third frame member move. By the movement of the first and third frame members, the torso and legs of the patient lying on the bed are supported so as to move with the first and third frame members.

Further, a detachment mechanism is provided below the rear frame assembly to allow releasable engagement with the free end of the second connecting rod, and between the second connecting rod and the detaching mechanism. When is disengaged, the free end of the second connecting rod can slide into the slot of the mechanism, so that the third frame member is not lifted.

[0008]

[Effect of the invention]

 The patient lying on the bed according to the invention is not only substantially supported on the torso and legs, but also can move smoothly while the rear part of the bed is lifted upward.

[0009]

[Embodiment of the invention]

 Referring to FIGS. 1 to 3, a folding bed according to the present invention includes a front frame including a first frame member 11 and a second frame member 12 pivotally connected to the first frame member. It has a three-dimensional body 10, a third frame member 13, and a fourth frame member 14 pivotally connected to the third frame member. Further, the foldable bed has a motor 20 mounted below the front frame assembly 10, a drive rod 21 extendably connected to the motor, and pivotally connected to the drive rod. A first connecting rod 22, a second connecting rod 23 pivotally connected to the first connecting rod, and a fixed connection under the rear frame assembly 101 for receiving the second connecting rod therethrough. It has an attached tube 31 and a third connecting rod 24 connected to the free end of the second connecting rod 23. The first frame member 11 has a first connector 211 fixedly connected thereunder and pivotally connected to the drive rod 21. In addition, the third frame member 13 has a second connector 25 connected to the free end of the third connection rod 24 so as to be pivotally connected therebelow.

One end of the first connector 211 is fixedly connected below the first frame member 11, and the other end is pivotally connected to the drive rod 21, so that when the drive rod 21 expands and contracts, The first frame member 11 can be inclined upward or downward with respect to the second frame member 12. Due to the pivotable connection between the first connecting rod 22 and the second connecting rod 23 and the restriction of the tube 31, the second connecting rod 23 is connected between the fourth connecting rod 24 and the second connecting rod 23. Is fixed, the tilting movement of the third frame member 13 with respect to the fourth frame member 14 can be started.

As shown in FIG. 2, a separation mechanism is provided at the joint between the third connecting rod 24 and the second connecting rod 23 so as to determine the connecting relationship between the second and third connecting rods 23, 24. You can see that it is. The detaching mechanism extends through a cap 40 rotatably attached to the top of the third connecting rod 24 and a joint fixedly connected to the cap and connecting the second connecting rod 23 and the third connecting rod 24. It has a linkage 41 and a knob 42 fixedly connected to the linkage.

The third connecting rod 24 further includes an elongated slot 241 formed therein to slidably receive the linkage 41, and a stop formed at its end and releasably engaged with the cap 40. Means 242. The cap 40 can be rotated by a knob 42 so as to rotate with respect to the third connecting rod 24. When the end of the cap 40 engages the stop 242, the linkage 41 cannot slide into the slot 241. Next, the connection between the second connecting rod 23 and the third connecting rod 24 is fixed. Therefore, as shown in FIG. 3, the contraction of the second connecting rod 23 starts to lift the third frame member 13 to support the patient's torso lying on the bed.

However, referring to FIGS. 4 and 5, when the cap 40 is not rotated with respect to the third connecting rod 24, the second connecting rod 23 and the third connecting rod 24 are pivotable. Stay connected. That is, the cap 40, the linkage 41, and the knob 42 can slide integrally along the slot 241 of the third connecting rod 24. Therefore, the contraction of the second connecting rod 23 cannot start the upward movement of the third frame member 13.

FIGS. 6 and 7 show two different embodiments of the third connecting rods 24, 60 of the present invention. From FIG. 6, it can be seen that the end of the third connecting rod 24 has a stopping means 242 formed to stop the rotation of the cap 40. FIG. 7 shows that the end of the third connecting rod 24 has a cutout 243 for receiving and securing the cap 40. 6 and 7 can achieve the purpose of stopping the rotation of the cap 40.

While the features and advantages of the present invention have been described in conjunction with details of the structure and function of the present invention, changes in detail, particularly in matters relating to the shape, size, and arrangement of parts, may be altered by the terms defined in the claims. It should be understood that to the full extent indicated by its broader general meaning, it is possible within the principles of the invention.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the entire structure of a folding bed according to the present invention.

FIG. 2 is a perspective view partially showing a structure of a bed according to the present invention and a linkage attached to a lower side of the bed.

FIG. 3 is a plan view illustrating a state in which first, third, and fourth frame members are lifted upward by driving a motor attached to a lower side of the bed according to the present invention;

FIG. 4 is a side view showing upward movement of the third and fourth frame members by a separating mechanism.

FIG. 5 is a side view showing a sliding state of the third connecting rod in the pull-out mechanism, which enables the third and fourth frame members to move freely upward by driving the second connecting rod.

FIG. 6 is a side view showing a moving state of the cap that enables engagement between the cap and the stopping means.

FIG. 7 is a side plan view showing another example of the separation mechanism.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 front frame assembly 101 rear frame assembly 11 first frame member 12 second frame member 13 third frame member 14 fourth frame member 20 motor 21 drive rod 211 first connector 22 first connection rod 23 second connection rod 24 Third connecting rod 241 Slit 242 Stopping means 243 Cutout 40 Cap

Claims (3)

[Utility model registration claims] 1. A first frame member (11) and said first frame member (1).
A front frame assembly (10) comprising a second frame member (12) pivotally connected to 1); and the second frame member (12).
A third frame member (13) pivotally connected to the third frame member (13) and a fourth frame member (1) pivotally connected to the third frame member (13).
And 4) a rear frame assembly (101) comprising: (a) a motorized foldable bed structure having a motor (2) fixedly attached to the underside of the bed;
0), a drive rod (21) that is extendably connected to the motor (20), a first connection rod (22) that is pivotally connected to the drive rod (21), and the first connection. A second connecting rod (23) pivotally connected to the rod (22); and a tube (31) fixedly connected to the bed for receiving the second connecting rod (23) therethrough. A third connecting rod (24) connected to the second connecting rod (23) and having an elongated slot (241); fixedly connected under the first frame member (11); ) And a second connecting rod (2) under the third frame member (13).
And a second connector (25) connected to (3). 2. The second connecting rod (23) and the third connecting rod (23).
A cap (40) rotatably attached to the third connecting rod (24), comprising a separating mechanism provided at a joint with the connecting rod (24).
And a linkage (41) fixedly connected to the cap (40) and extending through a joint between the second connection rod (23) and the third connection rod (24), and fixed to the linkage (41). And a cutout (243) at the end of a third connecting rod (24) for receiving said cap (40) so as to stop rotation of said cap (40). The mechanized folding bed structure of claim 1, wherein the structure is formed. 3. Stop means (242) is formed at the end of said third connecting rod (24) to stop rotation of said cap (40), whereby said second connecting rod (23) and said 3. The mechanized folding bed structure according to claim 2, wherein the connection between the third connecting rod (24) is fixed.