JPS631900Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bed device in which a side shelf is provided on the side of a bed frame so as to be movable up and down.

Generally, the above-mentioned side shelf is provided on the side of the bed frame so that it can be held in a state that protrudes from the top side, for the purpose of preventing a patient lying on the bed from falling or the bedclothes from slipping off. ing. The side shelf is lowered so that it does not get in the way when the patient gets off the bed or receives a medical examination.

Conventionally, as a mechanism for holding the side shelf in a state in which it projects toward the upper surface of the bed frame, for example, the following mechanism has been used. That is,
Since the side shelf is vertically movably supported by a guide body provided on the side of the bed frame, through holes are formed in the guide body and the side shelf so that they face each other when the side shelf is raised; Some devices are designed to hold the side shelf by inserting pins into the through holes.

However, according to the holding mechanism having such a configuration, the through holes of the guide body and the side shelf must be opposed to each other, and the pins must be inserted into the through holes while holding the side shelf with the through holes facing each other. The problem arises that it is not easy to perform operations such as this, and the operability is very poor.

This idea was made based on the above circumstances,
The object thereof is to provide a bed device in which a side shelf can be held in an elevated state with a simple operation.

An embodiment of the present invention will be described below with reference to the drawings. The bed apparatus shown in FIG. 1 includes a bed frame 1. This bed frame 1 is formed into a rectangular frame shape, and casters 2 are provided at both ends in the longitudinal direction.
The legs 3 having the following are connected. A rectangular cylindrical mounting member 4 is provided along the longitudinal direction on one side of the outer surface of the bed frame 1, and is fixed at both ends with screws 5. A first guide body 6 is provided at the longitudinal end of this mounting member 4, and a second guide body 6 is provided at the center part.
A guide body 7 is provided. On the first and second guide bodies 6 and 7, a side shelf 10 consisting of a frame portion 8 and three vertical rods 9 installed between the upper and lower sides of the frame portion 8 is attached to the vertical rods 9. is inserted through it so that it can move up and down. Further, the side shelf 10 is held in a state in which it protrudes toward the upper surface of the bed frame 1 by a holding mechanism 11, which will be described later, provided within the second guide body 7.

The first guide body 6 is a cylindrical body 1 provided penetrating the upper and lower surfaces of the mounting member 4 as shown in FIG.
2 and bushings 13 fitted to the upper and lower opening ends of the cylindrical body 12, and the vertical rods 9 of the side shelf 10 are slidably inserted into the bushings 13. Further, as shown in FIG. 3, the second guide body 7 includes a cylinder 15 provided through the upper and lower surfaces of the mounting member 4, and an upper end on the lower surface of the mounting member 4 corresponding to the cylinder 15. It consists of a rectangular cylindrical container 16 which is fixedly provided, and a lid 17 which is fitted into the opening at the lower end of the container 16. This lid body 17 has a through hole 18 at a position corresponding to the cylindrical body 15.
A bushing 19 is fitted into the upper end opening of the cylindrical body 15.
The vertical rod 9 of the side shelf 10 is slidably inserted into the through hole 18. The vertical rod 9 inserted into the housing 16 is provided with a shaft-shaped projection 20 that penetrates in the radial direction.

The holding mechanism 11 is provided within the container 16 . This holding mechanism 11 has a pair of holding bodies 21 having a U-shaped cross section. The holder 21 is rotatably supported at its lower end in the longitudinal direction by a support shaft 22 installed between the side walls of the container 16 in the longitudinal direction. A collar 23 that regulates the distance between the pair of holders 21 is fitted onto the support shaft 22 . Also,
A step portion 24 is formed at the upper end of the holder 21 by removing a notch in this portion in a substantially J-shape. Also,
The holding body 21 is moved in the direction indicated by arrow A in FIG. , that is, the stepped portion 24 is
0 in the direction of engagement. Further, a cam 27 is rotatably attached to the upper end of the holder 21 by a support shaft 28. This cam 27 has a substantially triangular shape, and when it is in the state shown in FIG.
The rotation in the direction shown by arrow B in FIG. 8 is restricted by contacting the inner surface of the shaft. Further, in this state, one oblique side 31 of the cam 27 is located in an inclined state above the step portion 24.

Note that a presser shaft 32 for regulating the rotation of the holder 21 is protruded from a side wall of the container 16 located in the rotation direction of the holder 21 .

Next, the operation of the side shelf 10 having the above configuration will be explained. First, when the side shelf 10 is held so as to protrude above the bed frame 1 as shown in FIG. The provided projections 20 are engaged. To lower the side shelf 10 from this state, the side shelf 10 is raised. Then, as shown in FIG.
Press the top 29 of the cam 27
The holding body 21 is rotated in the direction shown by the arrow C in the figure, and the holding body 21 is moved by the arrow D against the restoring force of the spring 26.
Rotate it in the direction shown. When the protrusion 20 and the cam 27 are brought out of contact with each other with the side shelf 10 further raised than the state shown in FIG. The state shown in FIG. 6, that is, the container 16
The presser foot rotates until it hits the presser foot shaft 32 protruding from the presser foot shaft 32 . Next, when the side shelf 10 is lowered, the protrusion 20 hits the first top 29 of the cam 27, and the cam 2
7 is rotated to the state shown in FIG. In other words, the cam 27 is positioned such that its second top 30 abuts the inner surface of the holder 21 and its oblique side 31 is inclined upwardly from the stepped portion 24 . If the side shelf 10 is further lowered from this state, the protrusion 20 will move to the cam 2.
Since the oblique side 31 of No. 4 is pressed, the holding body 21
It rotates in the direction shown by arrow D in the figure. Therefore,
The side shelf 10 can be lowered without the protrusion 20 engaging with the stepped portion 24.

In addition, the lowered side shelf 10 is attached to the bed frame 1.
If you want to hold it in a state where it protrudes from the top side,
The side shelf 10 is pulled up while rotating the holding body 21 in the direction of arrow D using the protrusion 20. Then,
Since the protrusion 20 contacts the first top portion 29 of the cam 27 that protrudes from the holder 21 and rotates the cam 27 in the direction indicated by arrow C in FIG. 7, the oblique side 31 of the cam 27 The covered step portion 24 is opened. Also, at this time, the holding body 21 rotates in the direction opposite to the direction indicated by arrow D in FIG. 7 due to the restoring force of the spring 26, so that the protrusion 20
4 and the side shelf 10 is held in an elevated state.

That is, according to the above configuration, the side shelf 10 can be held in a state protruding from the upper surface of the bed frame 1 by simply moving the side shelf 10 up and down along the first and second guide bodies 6 and 7. It can be lowered or lowered.

As described above, the present invention makes it possible to hold the bed frame in a state where it projects above the bed frame or to lower it by simply moving the side shelves up and down. Therefore, the operation for holding the side shelf in the raised state and lowering it is extremely simple, resulting in excellent operability.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the whole, Fig. 2 is a sectional view of the first guide body, Fig. 3 is a sectional view of the second guide body, and Fig. 4 is a sectional view of the second guide body. Figure 3 - Enlarged sectional view along the line, Figure 5 is Figure 3 -
The sectional views taken along the line and FIGS. 6 to 8 are explanatory views of the operation of the protrusion and the cam as the side shelf moves up and down. DESCRIPTION OF SYMBOLS 1... Bed frame, 7... Second guide body, 8... Frame part, 9... Vertical rod, 10... Side shelf, 2
0...Protrusion, 21...Holding body, 24...Step part, 2
6...spring, 27...cam.

Claims (1)

[Scope of utility model registration request] The bed frame includes a bed frame, a guide body provided on the side of the bed frame, a frame portion, and a vertical rod installed between the upper and lower sides of the frame portion, and the vertical rod is movable up and down relative to the guide body. The inserted side shelf, a protrusion protruding from a portion of the vertical rod located inside the guide body, one end of which is rotatably mounted within the guide part, and the protrusion engages with the other end. a holder having a step formed therein; a spring biasing the holder in the direction of the vertical rod; a cam that is rotated by the protrusion and prevents the protrusion from engaging with the step when the side shelf is raised from a state in which the protrusion engages with the step and then lowered; A bed device characterized by: