JP3651791B2 - Side fence device in bed with unexpected lock release prevention function - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention prevents unexpected unlocking by preventing the holding state of the fence portion from being released by force majeure when holding the fence portion of the side fence device mounted on the side surface of the bed so as to be movable up and down. The present invention relates to a side fence device in a bed having a function.
[0002]
[Prior art]
Conventionally, side walls with various functions have been attached to the side of the bed to help prevent patient holding, mattresses, futons, etc. from falling.
Among such side fences, when not in use, a lifting type side fence device having a function of holding the fence part below the bottom and projecting and holding the fence part above the bottom in use has been commercialized. In this lifting / lowering side fence device, a support member that supports the fence part and a restraining means provided between the fence parts are operated to hold the fence part on the bottom.
[0003]
[Problems to be solved by the invention]
However, from the viewpoint of ease of handling, the restraining means are often of a mechanism that can be easily released, and there is a risk that it will be released by inadvertently touching the hand, so that the fence part suddenly falls below the bottom. It ’s dangerous.
The present invention has been proposed to improve such a problem, and on the side surface of the bed, when the fence portion of the side fence device mounted so as to be able to be raised and lowered is held above the bottom, the fence portion An object of the present invention is to provide a side fence device in a bed having an unexpected lock release preventing function in which the holding state is not released by force majeure.
[0004]
[Means for Solving the Problems]
To solve the problems described above, in the present invention, in claim 1, the bed side surface, a pair of strut members attached with one end rotatably via a pair of rotation base, said pair of times The movable base is connected to each other through a base piece projecting from the rotating base so that the moving base can be interlocked. 1st restraint which comprised the fence part and the support | pillar member in the position equidistant to the distance from the rotation base part of the said one end side to the fence part attachment location of the other end side so that restraint / restraint is possible. Proposing a side fence device in a bed having an unexpected lock release preventing function provided with a second restraining means for preventing the restraining / releasing action of the first restraining means adjacent to the first restraining means. To do .
Also, in the present invention, in claim 2, the first restraining means is disposed so as to be orthogonal to the base frame in the base frame and the base frame held on the side fence side, and supported so as to be able to project and retract by the biasing means. A stopper hole formed on the side of the column member and a holding hole in which the stopper pin is detachably fitted, and the second restraining means is adjacent to the base frame of the first restraining means on the side fence. A stopper lever that is pivotally attached is provided, and the stopper lever is brought to a position that covers the stopper pin in the first restraining means, thereby preventing the restraining / releasing action of the first restraining means. A side fence device in a bed having an unexpected lock release prevention function is proposed.
[0005]
According to the first aspect, by pulling up the fence portion, the pair of support members can rotate around the center of the rotation base on one end side to perform a parallel link operation and bring the fence portion onto the bottom. Then, the 1st restraining means by the side of a fence part is brought to the other end side of the said support | pillar member, and a fence part and a support | pillar member are hold | maintained in the position. Next, the second restraining means adjacent to the first restraining means is operated to prevent the restraining / releasing action of the first restraining means.
[0006]
According to claim 2, when the fence portion is brought together with the pair of support members on the bottom, the position of the stopper pin arranged on the base frame on the side fence side matches the holding hole on the support member side, and the stopper pin is The fence portion and the support member can be restrained on the spot by being locked in the holding hole by the urging means. Next, by rotating the stopper lever in the second restraining means and bringing the stopper lever to a position covering the stopper pin, the movement of the stopper pin can be sealed.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, one embodiment of a side fence apparatus in a bed having an unexpected lock release preventing function according to the present invention will be described and described below with reference to the accompanying drawings.
In FIG. 1, the place which has arrange | positioned the raising / lowering type side fence apparatus 2 concerning this invention in the side surface side of the bed 1 is shown. The bed 1 may be a hospital bed or a home bed, as shown in the figure, or may be a movable gatch bed with a divided bottom, or a flat bottom bed.
In this case, the illustrated bed 1 is a hospital gatch bed, and is configured to support the bottom 5 formed in a divided manner on the main frame 4 on the carriage 3 via a bottom adjustment mechanism (omitted).
The bottom 5 includes, for example, a back bottom 5a corresponding to the back, a waist bottom 5b corresponding to the waist, a knee bottom 5c corresponding to the knee, and a foot bottom (not shown) corresponding to the foot. The side fence device 2 is attached to the bottom 5a and the foot bottom.
[0008]
Next, the side fence apparatus 2 attached to the back bottom 5a side will be described.
That is, the side fence device 2 includes a pair of support members 7 and 7 that are pivotally attached to the back bottom 5a side end side via a pair of rotation bases 6 and 6, and the pair of rotations. The base portions 6 and 6 are connected to each other by the interlocking rod 9 through base pieces 8 and 8 projecting from the rotation base portions 6 and 6, respectively, and the fence portions 10 are respectively connected to the other end sides of the column members 7 and 7. Are connected so as to be rotatable.
[0009]
The rotating base 6 is a cylindrical member integrally coupled with one end of the column member 7 and is attached to the back bottom 5a side end by a stepped bolt b that is rotatably inserted from the inside of the back bottom 5a side end. It is attached so as to be rotatable (see FIG. 3). Further, the base piece 8 is integrally fixed to the rotating base 6.
[0010]
The column member 7 is a plate member having a substantially isosceles triangle shape, and the other end side where the rotation base 6 is fixed is set near the apex, and a fence portion 10 described later is rotated around one end near the two apexes. The holding hole 11 in the 1st restraining means mentioned later is formed in the vicinity of the remaining one vertex.
[0011]
The interlocking rod 9 and the base pieces 8 and 8 are rotatably connected so that both support members 7 and 7 are displaced in parallel and at the same angle and simultaneously in the same direction.
[0012]
Moreover, the said fence part 10 is comprised by the pipe material, and is comprised by the parallelogram-shaped and loop-shaped square outer pipe 10a, and the inner pipes 10b and 10b arrange | positioned in the shape of a horizontal rail.
[0013]
The first restraining means 12 that can be engaged and disengaged with the holding hole 11 in the vicinity of one apex of one of the strut members 7 among the strut members 7, 7 is disposed horizontally below the rectangular outer pipe 10 a in the fence portion 10. It is provided in the place. Further, the first restraining means 12 is provided with a second restraining means 13 adjacent to the first restraining means 12 for preventing the restraining / releasing action of the first restraining means 12 (see FIG. 2). .
[0014]
The first restraining means 12 includes a base frame 14 having a U-shaped cross section that is fitted from the outside to a lower horizontal portion of the rectangular outer pipe 10 a in the fence portion 10, and the base frame 14 so as to be orthogonal to the base frame 14. A cylindrical guide body 15 penetrating through the rectangular outer pipe 10a and a stopper pin 17 supported on the guide body 15 by a coil spring 16 so as to protrude and retract (see FIG. 4).
A stepped portion 18 is provided outside the base frame 14 to provide a stopper lever (described later) in the second restraining means 13, and the stopper pin is provided on the stepped portion 18 and the bottom surface of the guide body 15. Insertion holes 14h and 15h that can project and retract 17 are formed.
The stopper pin 17 has a small screw portion 17s on the distal side compared to the diameter of the insertion holes 14h and 15h and a shaft portion 17a slightly smaller in diameter than the insertion holes 14h and 15h from the middle to the tip side. A flange portion 17f having substantially the same diameter as the inner diameter of the cylindrical guide body 15 is provided in the vicinity of the distal end side of the shaft portion 17a. The nut member 19 is screwed to the screw portion 17s on the end side from the step portion 18 outside the base frame 14 through the insertion holes 14h and 15h through the insertion holes 14h. In the nut member 19, the diameter of the shaft portion 19 a is the same as the diameter of the shaft portion 17 a of the stopper pin 17.
Furthermore, the front end side of the stopper pin 17 is directed to the holding hole 11 so that it can be engaged with and disengaged from the holding hole 11 near one vertex of the one end side of the column member 7 (see FIG. 5).
[0015]
Next, the second restraining means has a stopper lever 20 that is rotatably attached to a lower horizontal portion of the rectangular outer pipe 10a in the fence portion 10 adjacent to the base frame 14 of the first restraining means 12. Yes.
The stopper lever 20 includes a base portion 20b rotatably attached to the outer pipe 10a by a stepped bolt 21 and a tip end portion 20f that should cover the stepped portion 18 outside the base frame 14 in the first restraining means 12. (See FIG. 6).
[0016]
In the side fence device 2 as described above, by lifting the fence part 10 above the bottom 5, the pair of support members 7, 7 are rotated about the rotation base parts 6, 6 on one end side, thereby being parallel links. An action can be taken to bring the fence 10 on the bottom 5.
Then, since the holding holes 11 on the support members 7 and 7 side are brought to the position of the stopper pin 17 of the base frame 14 provided in the square outer pipe 10 a in the fence portion 10, the stopper pin 17 is moved by the coil spring 16. The fence part 10 and the support | pillar members 7 and 7 can be restrained on the spot by latching to the holding hole 11 (refer FIG. 2). In this state, the stopper pin 17 is moved from the stepped portion 18 outside the base frame 14 through the insertion hole 15 h in the cylindrical guide body 15 disposed in the base frame 14 and the insertion hole 14 h in the base frame 14. A nut member 19 screwed to the pin 17 is exposed to be able to project and retract.
[0017]
Next, the stopper lever 20 which is the second restraining means 13 adjacent to the first restraining means 12 is rotated, and the tip end portion 20f of the stopper pin 17 is moved to the nut member 19 in the stepped portion 18 outside the base frame 14. The stopper pin 17 can be prevented from moving (see FIG. 7).
[0018]
【The invention's effect】
According to the present invention, the second restraint is operated by sealing the operation of the first restraint by operating the second restraint in a state where the fence portion is held by the first restraint with the support member above the bottom. Unless the means is operated to release, the first restraining means will not be released, and the fence part will not unexpectedly fall below the bottom. Can do.
[0019]
[Brief description of the drawings]
FIG. 1 is a side view of an essential part showing an example of a bed equipped with a side fence device according to the present invention.
FIG. 2 is an enlarged side view for explaining the function of the side fence device shown in FIG. 1;
FIG. 3 is a front explanatory view showing an attachment position and an attachment mechanism of the side fence device shown in FIG. 1;
4 is an enlarged exploded perspective view of the first restraining means and the second restraining means of the fence portion in the side fence device shown in FIG. 1. FIG.
FIG. 5 is a cut arrow view of the first restraining means viewed along the line AA in FIG. 4;
FIG. 6 is a cut arrow view of the second restraining means viewed along the line BB in FIG.
7 is an operation explanatory view of first restraining means and second restraining means of the fence portion in the side fence device shown in FIG. 1. FIG.
[Explanation of symbols]
1 Bed 2 Side fence device 3 Carriage 4 Main frame 5 Bottom 5a Back bottom 5b Waist bottom 5c Knee bottom 6 Rotating base 7 Column member 8 Base piece 9 Interlocking rod 10 Fence 10a Square outer pipe 10b Inner pipe 11 Holding hole 12 1 restraint means 13 second restraint means 14 base frames 14h, 15h insertion hole 15 guide body 16 coil spring 17 stopper pin 17a shaft portion 17s screw portion 17f flange portion 18 step portion 19 nut member 19a shaft portion 20 stopper lever 20b base portion 20f tip Part 21, b Stepped bolt

Claims (2)

A pair of strut members, one end of which is pivotally attached to the bed side surface via a pair of pivot bases, and a pair of pivot bases projecting from the pivot bases, respectively, are interlocked with each other. It connects so that it can interlock | cooperate with a cage | basket, and while connecting the fence part to the other end side of the said support | pillar member so that rotation is possible, the fence of the other end side from the rotation base part of the said one end side is adjoined to the said other end side. The first restraining means is provided at a position equidistant from the distance to the part mounting location, and is configured so that the fence portion and the column member can be restrained / released. The first restraining means is adjacent to the first restraining means. A side fence apparatus for a bed having an unexpected lock release preventing function, characterized in that a second restraining means for preventing the restraining / unconstraining action is provided . The first restraining means is formed on the side of the support member and the stopper pin supported so as to be able to project and retract by the urging means, arranged to be orthogonal to the base frame in the base frame and the base frame held on the side rail side The second restraining means has a stopper lever that is rotatably attached to a side fence adjacent to the base frame of the first restraining means. and, by causing have this stopper lever in a position to cover the stopper pin in the first restraint means, according to claim 1, characterized in that a structure for preventing the locking / release action of the first restraining means Side fence device in bed with unexpected lock release prevention function.

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