JPH03128009A - Liftable side rails for beds, etc. - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

(Prior art) Side rails are installed on the longitudinal sides of beds, etc. to prevent users and bedding from falling. When in use, side rails are erected 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 it in a position that does not get in the way.
Various types are available, such as removable type and elevating type. 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 lifts and lowers the fence by holding the side fence main body.

(Problems to be Solved by the Invention) As mentioned above, a so-called full-body device in which the side rail body corresponds to all or most of the longitudinal sides of a bed or the like is relatively heavy, and therefore, the lifting and lowering operations thereof are difficult. In addition to placing a relatively large labor burden on the user of the bed, such as the patient, as well as the nurse, etc., depending on the position of the side rail body in the stowed state, the user on the bed may be unable to go up and down. The problem is that there are times when it cannot be operated.

The present invention aims to solve such 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. On both sides of the frame 1 in the longitudinal direction,
A pair of support arms 6a, 6b are provided, each of which has one side 5a, 5b fixed to the inside of the floor support frame 1 so as to be rotatable in the vertical direction on the width side. The other sides 7a and 7b are rotatably fixed at appropriate positions on both sides of the side fence main body 8 in the longitudinal direction, so that the side fence main body 8 can be moved vertically when rising and the side fence main body 8 can be moved horizontally when lowered. The electric motor 9 is supported in the width direction of the floor support frame 1.
While rotatably supporting the driving screw shaft 10,
A relatively movable drive mechanism 14 is constructed between one of the support arms 6a, 6b and a nut 11 which is screwed onto the screw shaft 10 and 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, a relatively movable drive mechanism is created. The support arm 6a driven by the support arm 14 rotates in the vertical direction using the one side 5a as a fulcrum.
When the support arm 6a rotates upward in the state shown in FIG. The posture shifts to the vertical direction, and in a predetermined position, the device becomes in use as shown in FIG. 3(a), thereby preventing the user, bedding, etc. from falling. In addition, in this state, when the screw shaft 10 is rotated in the opposite direction, the nut 11 is moved in the opposite direction, and the support arm 6a is rotated downward, the side fence main body 8 is
It is supported by the pair of support arms 6a and 6b mentioned above, and at the same time as it descends toward the inside of the floor section 2, its posture gradually shifts to the lateral direction, and it is supported laterally in the space below the floor section 2. and enters the stored state. Therefore, in such a state, the side rail main body 8 does not get in the way when making a bed, examining patients, 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. Also, as mentioned above, in the stored state.

Since the side fence body 8 is horizontal, 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. Moreover, the mechanism including the support arms 6a and 6b can be simplified compared to a parallel link mechanism or the like.

(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, 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. . Each of the support parts 4 is provided with a pair of support arms 6a and 6b, each of which has one side 5a and 5b fixed to the inside of the floor support frame 1 so as to be rotatable in the vertical direction on the width side. With.

The other sides 7a and 7b of the support arms 6a and 6b are rotatably fixed to both sides of the side fence body 8 in the longitudinal direction. The pair of support arms 6a and 6b are rotatably fixed to positions where they can support the side fence main body 8 in the vertical direction when rising and in the horizontal direction when descending. Corresponding to one longitudinal side of the floor support frame 1, a screw shaft 10 for driving the electric motor 9 is rotatably supported in the width direction of the floor support frame 1. The nut 11 is screwed together. Rollers 12 are provided on both sides of the nut 11 in the lateral direction, and guide frames 13 for movably supporting the rollers 12 are provided on support arms 6a corresponding to both sides of the nut 1. 12 and the guide frame 13 constitute a drive mechanism 14.

Therefore, in the state shown in FIG. 3(b), that is, in the state in which the side fence main body 8 is supported laterally in the space below the floor part 2 and is in the retracted state, the electric motor 9 is activated. 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.

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. As the support arm 6a rotates and rises, the other support arm 6b also rotates clockwise via the side fence main body 8, and the pair of support arms 6a and 6b rotate and rise in conjunction with each other.

The attitude of the side fence main body 8 gradually shifts from the horizontal state shown in FIG. 3(b) to the vertical direction, and in this way, the supporting arms 6a, 6
When b performs a predetermined rotation, it becomes vertical as shown in FIG. 3(a), and is in a predetermined state of use. In this state of use, the external force applied downward to the support arm 6a via the side fence body 8 causes the load applied to the right side to the nut 11 via the drive mechanism upper 4 to be 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. 3(a), when the screw shaft 10 is rotated in the opposite direction to that described above using the reversing or reversing gear mechanism of the electric fi 9 and the nut 11 is moved to the right in the figure, the Due to the operation, the support arm 6a rotates counterclockwise,
In this way, as the floor support frame 2 descends inward, its posture gradually shifts to the lateral direction, and it is supported laterally in the space below the floor 2 again as shown in FIG. 3(b).
It will be in the storage state shown in .

In the above configuration, the screw shaft 10 and the nut 11
In addition to being configured as a normal screw mechanism, it can also be configured as a component 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 threaded shaft 10 as needed by an appropriate mechanism, the nut 11 will become threaded due to such idle rotation. shaft 10
Even if it does not rotate, it can move freely along it,
Even in the event of a power outage, etc., the side fence main body 8 can be raised and lowered by manual operation. In the illustrated embodiment, the reference numeral 1
Reference numeral 5 denotes 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 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 will be high. This has the effect that the mechanism including the support arm can be simplified compared to a parallel link mechanism or the like.

[Brief explanation of the drawing]

All the figures correspond to the embodiments of the present invention; FIG. 1 is an explanatory side view, FIG. 2 is an explanatory front view, and FIGS.
b) is an enlarged explanatory front view of the main part showing the usage state and storage state of the side fence body, respectively, and FIG. 4 is an explanatory sectional view of the main part. Code 1... Floor support frame, 2... Floor, 3...
・Base, 4...Support part, 5a, 5b - One side, 6a, 6
b...Support arm, 7a, 7b...Other side, 8...Side fence body, 9...Electric motor, 10...Screw shaft, 1st...Nut, l2...Roller, 13... Guide frame, work 4... Drive mechanism, 15... Notch portion.

Claims (3)

[Claims] (1) On both sides of the floor support frame of the bed, etc. in the longitudinal direction,
A pair of support arms are provided, one side of which is fixed to the inside of the floor support frame so as to be rotatable in the vertical direction on the width side, and the other side of each of the support arms is fixed to the inside of the floor support frame in the longitudinal direction of the side rail body. The structure is such that the side fence body is rotatably fixed at appropriate positions on both sides to support the side fence body vertically when rising and the side fence body when descending horizontally, and an electric motor is installed in the width direction of the floor support frame. A bed, etc., characterized in that it rotatably supports a drive screw shaft, and a relatively movable drive mechanism is constructed between one of the support arms and a movable nut screwed onto the screw shaft. Liftable side fence (2) The drive mechanism described in item 1 is characterized in that it is composed of a roller provided on a nut and a guide frame provided on a support arm to movably support the roller. (3) The screw shaft and nut described in paragraph 1 are components of a ball screw, and the elevating type side fence of a bed, etc.