JPH0576842B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an elevating side rail for a bed, a patient carrier or a bed.

(Prior art) Side rails are installed on the longitudinal sides of beds, etc. to prevent users and beds from falling. When in use, side rails are installed horizontally on the floor, and are used for bed making and medical examinations. Alternatively, when the user gets on or off the floor, it is necessary to store the device in a position where it does not get in the way, and for this reason, various types of conventional devices such as detachable and elevating types are provided. For example, in the device disclosed in Japanese Utility Model Publication No. 1-30170, the side rail main body corresponding to the entire or most of the longitudinal side portion of the bed etc. is raised and lowered using a parallel link mechanism to bring it into the upright state. It is configured so that it can be in a stored state. Conventionally, in such an elevating type side fence, a person holds the side fence main body to go up and down.

(Problems to be Solved by the Invention) As mentioned above, a so-called full-face fence in which the side fence body corresponds to the entire or most of the longitudinal sides of a bed, etc., is relatively heavy, and therefore, its lifting and lowering operations are difficult. In addition to placing a relatively large labor burden on not only the user of the patient on the bed, but also the nurse, etc., depending on the position of the side rail main body in the stowed state, use on the bed may be difficult. There is a problem in that the person may not be able to operate the elevator up and down.

The present invention aims to solve these problems.

(Means for Solving the Problems) The configuration of the present invention for solving the above problems will be explained with reference to drawings corresponding to embodiments. frame 1
A pair of support arms 6a, 6 are respectively fixed on both sides in the longitudinal direction, with one side 5a, 5b fixed to the inside of the floor support frame 1 so as to be rotatable in the vertical direction in the width direction.
b, and the other sides 7a, 7b of the support arms 6a, 6b are rotatably fixed to both sides of the side fence main body 8 in the longitudinal direction.
6b has one side 5a and 5b close to each other and is fixed at a position shifted in the width direction, and one support arm 6b
One side 5b is located on the inner side in the width direction of the floor support frame 1 than the other side 5a of the other support arm 6a, and the other side 7b of the one support arm 6b is located on the lower side of the side fence main body 8. position, and the other support arm 6a
The other side 7a is positioned above the other side 7b of one support arm 6b, and rotatably supports a screw shaft 10 driven by an electric motor 9 in the width direction of the floor support frame 1. , the support arm 6
a, 6b and the nut 11 which is screwed onto the threaded shaft 10 and is movable, respectively, is provided with a driving force transmitting member 14 (12, 13), and these driving force transmitting members 14 (12, 13) The driving force is transmitted through mutual contact, and the contact position is movable.

(Function) In the above configuration, when the electric motor 9 is operated to rotate the screw shaft 10 and the nut 11 screwed thereto is moved in the width direction of the floor support frame 1, a driving force is generated due to mutual contact. The support arm 6a, which is driven by the driving force transmission member 14 (12, 13) that transmits the power, rotates in the vertical direction about the one side 5a as a fulcrum. Therefore, when the support arm 6a rotates upward in the state shown in FIG.
b, and at the same time as it rises, its posture gradually shifts to the vertical direction, and in a predetermined position, it is in a state of use as shown in FIG. 3a, and prevents the user, bedding, etc. from falling. Also, in such a situation,
When the screw shaft 10 is reversely rotated, the nut 11 is moved in the opposite direction, and the support arm 6a is rotated downward, the side fence main body 8 is rotated between the pair of support arms 6a,
6b and descends toward the inside of the floor section 2, at the same time its posture gradually shifts to the lateral direction, and is laterally supported in the space below the floor section 2 to enter the retracted state. Therefore, in such a state, the side rail main body 8 does not get in the way when making a bed, attending a medical examination, or when the user gets on and off the floor 2.

As described above, by operating the electric motor 9, the side fence main body 8 can be raised and lowered from the used state to the stored state and from the stored state to the used state, and even a user on the floor 2 such as a bed can move it with light effort. operations can be performed. In addition, as mentioned above, in the stored state,
Since the side fence body 8 is oriented horizontally, the storage space only needs to have a small vertical width. Therefore, even if the side fence body 8 has a sufficient vertical width, the floor portion 2 will become higher accordingly. There is no support arm 6a, 6
b can be simplified compared to a parallel link mechanism, etc., and especially these support arms 6a,
Since one side of 6b is installed close to each other, the required space is small.

(Example) Next, embodiments of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 denotes a floor support frame such as a bed, 2 a floor supported by the floor support frame 1 as appropriate, and 3 a base 3 that appropriately supports the floor support frame 1. The specific configuration of is arbitrary. In the illustrated example, support parts 4 for supporting support arms and the like described later are provided above on both sides in the longitudinal direction of the floor support frame 1, and a floor part 2 is formed below the upper end of the support parts 4. . Therefore, each of the support parts 4 is provided with a pair of support arms 6a, 6b, each of which is fixed at one side 5a, 5b inside the floor support frame 1 so as to be rotatable in the vertical direction on the width side. and the other sides 7a, 7 of the support arms 6a, 6b, respectively.
b are rotatably fixed to both sides of the side fence main body 8 in the longitudinal direction. The pair of support arms 6a and 6b are rotatably fixed to positions that can support the side fence main body 8 vertically when it is ascending and horizontally when it is descending. Corresponding to one longitudinal side of the floor support frame 1, a screw shaft 10 driven by an electric motor 9 is installed in the width direction of the floor support frame 1.
This screw shaft 10
A nut 11 is screwed together. This nut 11
A roller 12 is provided on both sides of the nut 11 in the lateral direction, and a guide frame 13 for movably supporting the roller 12 is provided on a support arm 6a configured to correspond to both sides of the nut 11. The frame 13 is a driving force transmitting member 14 that transmits driving force through mutual contact.

Therefore, in the state shown in FIG. 3b, that is, in the state in which the side fence main body 8 is supported laterally in the space below the floor 2 and is in the retracted state, the electric motor 9
When the screw shaft 10 is rotated in a predetermined direction, the nut 11 moves to the left in the figure, and this movement of the nut 11 causes the roller 12 to push the support arm 6a to the left via the guide frame 13. move.
Due to this pushing movement, the support arm 6a rotates clockwise in the figure using the point where it is fixed to the support part 4 on one side 5a as a fulcrum, and the other side 7a moves the corresponding point on the side fence main body 8 toward the upper left in the figure. Rotate and rise. Such support arm 6a
As the rotation rises, the other support arm 6b also rotates clockwise via the side fence main body 8, and due to the rotation and rise of the pair of support arms 6a and 6b,
The attitude of the side fence main body 8 gradually shifts from the horizontal state shown in FIG. 3b to the vertical direction, and when the support arms 6a and 6b perform a predetermined rotation in this way, the posture is as shown in FIG. 3a. It becomes the vertical direction, and is in the predetermined state of use.
In such a state of use, the load applied to the right side of the nut 11 via the drive mechanism 14 due to the external force applied downward to the support arm 6a via the side fence body 8 is due to the rotational resistance of the electric motor 9, etc. This can be supported by preventing the screw shaft 10 from reversing.

Next, from the state shown in FIG. 3a, when the screw shaft 10 is rotated in the opposite direction to that described above by the reverse rotation or reverse gear mechanism of the electric motor 9, and the nut 11 is moved to the right in the figure, due to the operation opposite to that described above. The support arm 6a rotates counterclockwise and thus descends toward the inside of the floor support frame 1, and at the same time its posture gradually shifts to the lateral direction and is supported laterally in the space below the floor 2. Then, the storage state shown in FIG. 3b is reached again.

In the above configuration, the screw shaft 10 and the nut 11 can be configured not only as a normal screw mechanism but also as components of a ball screw. In the latter case, there is an advantage that the required power can be reduced, and if the nut 11 is configured to be able to idle around the screw shaft 10 as required by an appropriate mechanism, the nut 11 will be able to rotate freely around the screw shaft 10 by such idle rotation. Even if the shaft 10 does not rotate, it can move freely along it, so the side fence main body 8 can be raised and lowered by manual operation even in the event of a power outage or the like. In the illustrated embodiment, reference numeral 15 is a notch for narrowing the width of the side fence main body 8 at a predetermined location in the stored state.

(Effects of the Invention) As described above, the present invention allows the main body of the side fence to be raised and lowered from the used state to the stored state and from the stored state to the used state by the operation of the electric motor. This has the effect that even a person can operate it with light effort. In addition, in the stored state, the side fence body 8 is horizontal, so the storage space only needs to have a small vertical width. Therefore, even if the side fence body has a sufficient vertical width, the floor area The mechanism including the support arms can be simplified compared to a parallel link mechanism, etc., especially since one side of these support arms is installed close to each other. , which has the effect of requiring less space.

[Brief explanation of the drawing]

All the figures correspond to the embodiment of the present invention, and Fig. 1 is an explanatory side view, Fig. 2 is an explanatory front view, and Figs. 3a and 3b show the side fence main body in its used and stored states, respectively. FIG. 4 is an explanatory enlarged front view of the main part, and FIG. 4 is an explanatory sectional view of the main part. Symbol 1... Floor support frame, 2... Floor, 3... Base, 4... Support part, 5a, 5b... One side, 6a, 6b
...Support arm, 7a, 7b...Other side, 8...Side fence body, 9
...Electric motor, 10...Screw shaft, 11...Nut,
12... Roller, 13... Guide frame, 14... Driving force transmission member, 15... Notch.

Claims (1)

[Scope of Claims] 1. A pair of supports, each of which is fixed on both longitudinal sides of a floor support frame such as a bed, with one side fixed to the inner side of the floor support frame so as to be rotatable in the vertical direction in the width direction. An arm is provided, and the other side of each of the support arms is rotatably fixed to both sides of the side fence main body in the longitudinal direction, and at this time, each of the support arms has one side close to each other,
In addition, one side of one support arm is located inside the floor support frame in the width direction than one side of the other support arm, and the other side of one support arm is fixed at a position shifted in the width direction. is located below the side fence main body, and the other side of the other support arm is located above the other side of one support arm, and an electric motor drive is installed in the width direction of the floor support frame. A screw shaft is rotatably supported, and a driving force transmitting member is provided on one of the supporting arms and a movable nut screwed onto the screw shaft, and these driving force transmitting members are in contact with each other. An elevating type side rail for a bed or the like, characterized in that it is configured to transmit a driving force and its contact position is movable. 2. An elevating type side fence for a bed or the like, characterized in that the driving force transmission member according to item 1 has a roller on the nut side and a guide frame for movably supporting the roller on the support arm side. 3. An elevating type side fence for a bed, etc., characterized in that the screw shaft and nut described in item 1 are components of a ball screw.