JP2000051283A - Housing-type side fence for bed or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a holding mechanism for holding a side fence in a state of projecting over the bottom also usable as a means restricting the side fence in a housed state under the bottom. SOLUTION: Lock receivers 18 and 19 engaging an engaging bar constituting a locking unit are formed in the neighborhood of the upper end part and the lower end part side of a second stay 8 constituting a strut part. Only by the operation of lifting the strut part and a fence part 5 over a back bottom, the tip of the engaging bar of the locking unit passes through the guide part of the receiver 18 against spring force to be engaged with an engaging hole to be locked. On the contrary, in order to unlock the locked state, the operation lever of the lock unit is operated to detach the engaging bar from the engaging hole of the receiver 18. On the other hand, only by the up/down operation of the strut part and the fence part, the engaging bar of the locking unit is made to move beyond a weir partitioning the guide part of the receiver 19 and the engaging hole to be in a locked state or an unlocked state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a holding mechanism for holding side fences so that they can protrude upward from the bottom of a bed or the like from below the bottom of a bed or the like. The present invention relates to a stowable side fence in a bed or the like, which can be diverted also as a means for restraining a stowed state.

[0002]

2. Description of the Related Art Conventionally, there are various types of side fences provided on beds and the like (hospital beds, home beds, transfer beds, ICU beds, etc.). For example, there is a retractable side fence that is held so as to cover the bottom side only when necessary. According to the retractable side fence, it is not necessary to remove and attach each time as in the case of an insertion fence, so that it is easy to use.

[0003]

However, such a retractable side fence has a structure in which it is held particularly in a state of being lifted above the bottom, but a structure in which the side fence is restrained in a state where it is stored below the bottom. Nothing is found.
In order to restrain with the side fence retracted below the bottom,
Since a new restraining means or the like is required, the structure becomes complicated, the number of parts increases, and the cost increases. The present invention
A holding mechanism has been proposed to solve the above-described problem, in which a side fence is configured to be able to protrude from below a bottom of a bed or the like to above the bottom, and the side fence is held in a protruding state above the bottom. It is an object of the present invention to provide a retractable side fence in a bed or the like, which can be used as a means for restraining the side fence in a storage state below the bottom.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a column provided so as to be able to protrude from below a bottom of a bed or the like to a top of the bottom, and to be rotatable toward the upper end of the column. When the fence is projected upward from the bottom via the support, the support is restrained, and when the fence is lowered, the restrained state of the support is released. By providing a restraining means that lowers the fence part below the bottom together with the pillar part to bring it to the lowest position,
The fence and the strut are lifted together with the strut while the fence and the strut are held in a constrained state by the action of the restraining means, whereby the fence and the strut are released from the constrained state. In the above-described configuration, the support portion includes the first stay,
A pair of second stays arranged adjacent to both side surfaces of the first stay, and a restraining means mounted on the first stay;
The restraining means includes a pair of locking bars provided so as to be able to protrude and retract under the urging of the urging means from the first stay toward both the second stays. The operation lever has a control lever that is configured to return to the first stay side against the urging force of the first and second stays. In the retracted state, lock receivers are formed so that the locking bars of the restraining means are locked. Further, the lock receiver has a locking hole for locking the locking bar of the restraining means, and a guide portion for guiding the locking bar to the locking hole in a state where the locking bar is in contact with the locking bar. When the fence is lifted above the bottom, the locking bar of the restraining means passes through the guide portion of the lock receiver against the urging force and locks in the locking hole by lifting operation alone, so that the locked state is achieved. On the other hand, the operating lever of the restraining means is operated to release the locking bar from the locking hole of the lock receiver to release the restrained state. A lock receiving member in which the locking bar is locked has a locking hole, and a guide portion for guiding the locking bar to the locking hole, and a weir separating the guide portion and the locking hole. Is set at a position lower than the surface of the second stay,
By simply raising and lowering the support and the fence, the locking bar of the restraining means passes over the weir that separates the guide from the locking hole, and the restraining state is released.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to an embodiment shown in the accompanying drawings.
FIG. 1 shows a bed 1 provided with a bottom raising / lowering mechanism (back raising mechanism, knee raising mechanism). The bottom 2 of this bed 1
Is divided into a back bottom 2a corresponding to the back, a waist bottom 2b corresponding to the waist, a knee bottom 2c corresponding to the knee, and a foot bottom 2d corresponding to the foot. Between the bottom 2a and the waist bottom 2b, a curved bottom 2e having a structure that bends at an appropriate curvature, and a curved bottom 2f between the knee bottom 2c and the foot bottom 2d, while the back bottom 2a and the foot bottom 2d are arranged. On the end face in the bed width direction so that it can protrude upward from below the bottom.
Is installed. The retractable side fence 3 has a column 4 mounted on the end surface in the bed width direction so as to protrude upward from below the bottom, and is rotatably mounted on the upper end of the column 4.
Is supported.

As shown in FIG. 2, the support column 4 has its base end rotatably mounted on a mounting frame 6 provided on the end surface side of the back bottom 2a (foot bottom 2d) in the bed width direction. The first stay 7 has a first stay 7 rotatably attached to the fence 5 and a pair of second stays 8 arranged adjacent to both side surfaces of the first stay 7. In addition, a restraining means, that is, a lock unit 9 is incorporated in a central portion of the first stay 7.

[0007] As shown in FIG. 3, the lock unit 9 is provided with a housing 10 mounted so as to be embedded in the first stay 7.
And a lock mechanism 11 for fixing the first stay 7 and the second stay 8 when bringing the fence 5 above the bottom 2 in the housing 10. The lock mechanism 11 is urged from the first stay 7 to the lock receivers (described later) provided on both the second stays 8 of the housing 10 by, for example, a spring force of a spring member (not shown). It has a pair of locking bars 12, 12 attached. Guide pins 13 are implanted in the vicinity of the opposing ends of the locking bars 12, 12 in the housing 10, and the operation of the locking bars 12, 12 in the housing 10 is performed in the vicinity of the ends. The guide frame 14 is inserted into a guide frame 14 movably held in a direction perpendicular to the direction (see FIG. 4). The guide pins 13 near the opposite ends of the locking bars 12, 12 are inserted and locked in guide holes 15 formed in a C-shape in the guide frame 14, and the guide frame 14 is fixed by a spring member. It is configured to be held in a restrained state with respect to the moving direction and to be connected to the operating lever 16 so that the operating lever 16 can move in the moving direction against the spring force of the spring member. By operating the operation lever 16 to move the guide frame 14 against the spring force by this configuration, the locking bars 12, 12 are locked in the second stay 8 through the guide holes 15 of the guide frame 14. The lock is released by withdrawing from the receiving position (see FIG. 5).

Further, the first and second members constituting the support portion 4 are provided.
As shown in FIG. 6, the stays 7 and 8 rotatably attach the base end to the attachment frame 6 provided on the end surface side of the back bottom 2a (foot bottom 2d) in the bed width direction, and attach the upper end to the attachment frame 6. It is rotatably attached to the fence 5. That is, the first stay 7 has a hook-like side shape, and has a base end attached to the attachment frame 6 via the coil spring 17 (see FIG. 7). The coil spring 17 is provided as urging means for urging the column 4 and the fence 5 to project upward of the back bottom 2a. On the other hand, the second stay 8 is formed in a U-shape, and is provided with a locking bar 12 constituting the lock unit 9 near the upper end and on the lower end side.
Locks the support portion 4 and the fence portion 5 to the back bottom 2.
The lock receivers 18 and 19 are formed to be in a state of being restrained in a state of being protruded above a and a state of being stored below the back bottom 2a (see FIG. 8).

Here, the lock receivers 18 and 19 will be described. First, the lock receiver 18 is used to lock the locking bar 12 of the lock unit 9 when the support portion 4 and the fence portion 5 are projected above the back bottom 2a as described above. And a guide portion 18b for guiding the fence portion 5 to the locking hole 18a with the tip of the locking bar 12 abutting when lifting the fence portion 5 above the back bottom 2a. The guide portion 18b is formed in the edge of the second stay 8 in an inclined manner so as to cut off the edge.
That is, when lifting the support portion 4 and the fence portion 5 above the back bottom 2a, the lifting bar 12 of the lock unit 9 passes through the guide portion 18b of the lock receiver 18 against the spring force only by the lifting operation. , And is locked by the locking hole 18a. Conversely, in order to release the locked state, the operating lever 16 of the lock unit 9 is operated so that the locking bar 12 is detached from the locking hole 18a of the lock receiver 18 (FIG. 9). reference). On the other hand, the lock receiver 19 is used to bring the support 4 and the fence 5 into a restrained state in a state where the support 4 and the fence 5 are stored below the back bottom 2a, and when the support 4 and the fence 5 are lowered,
It has a guide portion 19b with which the tip of the locking bar 12 contacts, and a locking hole 19a adjacent to the guide portion 19b. In this case, the inclination angle of the guide portion 19b is smaller than that of the guide portion 18b of the lock receiver 18, and the height of the weir 19c separating the guide portion 19b and the locking hole 19a is lower than the surface of the second stay 8. It is. In other words, in the lock receiver 19 in this case, only by raising and lowering the column 4 and the fence 5, the locking bar 12 of the lock unit 9 can be moved.
Moves over the weir 19c separating the guide portion 19b and the locking hole 19a, and is locked (locked), disengaged (unlocked).
State (see FIG. 10).

The retractable side fence of a bed or the like according to the present invention is constructed as described above. Next, the operation of the retractable side fence 3 will be described. For example, when the patient is lying on the bed 1, the retractable side fence 3 is attached to the back bottom 2a.
In the foot bottom 2d, the bottom is lifted upward from below and held. When the retractable side fence 3 is retracted below the bottom of the back bottom 2a and the foot bottom 2d, the fence 5 is gripped and the urging force of the coil spring 17 at the base end of the first stay 7 is assisted. By pulling up, the fence 5 can be brought to the highest position. When the fence part 5 is brought to the highest position, the first stay 7 and the second stay 8 constituting the support part 4 are close to each other on the side where the fence part 5 is attached, and are in an overlapping state from a separated state. At this time, the tip of the locking bar 12 of the lock unit 9 protruding from the first stay 7 side is connected to the guide portion 1 of the second stay 8.
8b, it passes through the guide portion 18b of the lock receiver 18 against the spring force and is locked in the locking hole 18a to be in a locked state, so that the fence portion 5 can be held at the highest position. (See FIG. 6).

Next, when getting on and off the bed, during treatment, the retractable side fence 3 is in the way, so that the operating lever 16 of the lock unit 9 is operated to lower the fence 5. The locking bar 12 is inserted into a locking hole 18a of a lock receiver 18.
And release the lock. Then, the fence 5 and the support 4 can be lowered by using the biasing force of the coil spring 17 at the base end of the first stay 7 as a repulsive force. The tip of the bar 12 contacts the guide portion 19b of the lock receiver 19 of the second stay 8. Further, by lowering the fence 5 and the support 4, the locking bar 12 rides over the weir 19 c separating the locking hole 19 a via the guide 19 b formed at a relatively gentle inclination angle. , Locking hole 19
a, the fence 5 and the support 4 are locked at the lowest position. Further, when the fence 5 and the support 4 are lifted from the locked state at the lowest position, the locking bar 12 can get over the lower weir 19c against the spring force.
As a result, the support portion 4 and the fence portion 5 can be brought from the retracted state to the disengaged (unlocked) state and brought to the highest position.

As described above, the support unit 4 and the fence unit 5 can be automatically held at the highest position by operating the lock unit 9 by lifting the fence unit 5 while holding the fence unit 5. When lowering the fence 5, the operating lever 16 of the lock unit 9 is operated to release the locking bar 12 of the lock unit 9 from the locking hole 18 a of the lock receiver 18 and release the lock. Support 4 unnecessarily
And the fence part 5 does not descend, which is preferable for safety.
On the other hand, since the locking bar 12 is brought into the locking hole 19a of the lock receiver 19 just by dropping the support 4 and the fence 5 to the lowest position, the fence 5 and the support 4 are
At the lowest position, it is locked (see FIGS. 7 and 1).
1) From this storage state, the lock unit 9 can be easily brought into the unlocked state simply by pulling up the fence 5, so that the usability is further improved.

[0013]

As described above, according to the present invention, when the fence is brought to the highest position, the fence is automatically held at that position, and on the contrary, it can be lowered only after the holding state is released. The fence does not fall from the highest position unintentionally, which is preferable for safety. Also, on the other hand, only by bringing the fence to the lowest position,
Since the restrained state can be released only by lifting the fence from the lowest position, it is excellent in operability and usability. Moreover, since these functions can be achieved by one lock unit, the structure can be prevented from becoming complicated, and the cost can be reduced.

[0014]

[Brief description of the drawings]

FIG. 1 is an explanatory side view showing an example of a bed to which a retractable side fence according to the present invention is applied.

FIG. 2 is an explanatory side view of one side of the retractable side fence according to the present invention attached to the bed shown in FIG. 1;

FIG. 3 is a side view of a lock unit in a support portion of the retractable side fence shown in FIG. 2;

FIG. 4 is an explanatory diagram of a mounting configuration of a locking bar in a housing in the lock unit shown in FIG. 3;

FIG. 5 is a schematic explanatory view showing a mechanism configuration of the lock unit shown in FIG. 3;

FIG. 6 is an explanatory side view showing a state where the retractable side fence shown in FIG. 1 is held above the bottom.

FIG. 7 is an explanatory perspective view showing an arrangement configuration of a lock receiver in a support column corresponding to the lock unit shown in FIG. 3;

FIG. 8 is an external perspective view of a second stay in which a lock receiver is formed in a support portion of the retractable side fence shown in FIG. 7;

9 is a sectional view taken along the line AA of the lock receiver corresponding to the lock unit when the side fence is stored in the second stay shown in FIG. 8;

FIG. 10 is a sectional view taken along line BB of the lock receiver corresponding to the lock unit when the side fence is stored in the second stay shown in FIG. 8;

FIG. 11 is an explanatory side view showing a state where the retractable side fence shown in FIG. 1 is restrained below the bottom.

[Explanation of symbols]

 1 Bed 2 Bottom 2a Back Bottom 2b Waist Bottom 2c Knee Bottom 2d Foot Bottom 2e, 2f Curved Bottom 3 Retractable Side Fence 4 Support 5 Fence 6 Mounting Frame 7 First Stay 8 Second Stay 9 Lock Unit 10 Housing 11 Lock mechanism 12 Lock bar 13 Guide pin 14 Guide frame 15 Guide hole 16 Operation lever 17 Coil spring 18, 19 Lock receiver 18a, 19a Lock hole 18b, 19b Guide portion 19c Weir

Claims (3)

[Claims] 1. A strut provided so as to protrude upward from the bottom of a bottom of a bed or the like, and a fence rotatably supported at an upper end side of the strut. The fence is provided via the strut. When protruding above the bottom, while restraining the strut portion, when lowering the fence portion, a restraining means for releasing the restrained state of the strut portion is provided, and the fence portion together with the strut portion is provided below the bottom. By lowering and bringing it to the lowest position, the restraint means is actuated to bring the fence and the strut into a restrained state, while the fence is lifted together with the strut,
A retractable side fence for a bed or the like, wherein the fence and the support are released from the restrained state. 2. The strut portion has a first stay and a pair of second stays arranged adjacent to both side surfaces of the first stay, and a restraining means is mounted on the first stay. The restraining means includes a pair of locking bars provided so as to be able to protrude and retract under the urging of the urging means from the first stay toward both the second stays. The operation lever has a control lever that is configured to return to the first stay side against the urging force of the first and second stays. 2. The storage side fence in a bed or the like according to claim 1, wherein a lock receiver is formed such that a locking bar of the restraining means is locked in the stored state. 3. The lock receiver has a locking hole in which a locking bar of the restraining means is locked, and a guide portion for guiding the locking bar to the locking hole in a state where the locking bar is in contact with the locking hole. When the support portion and the fence portion are lifted above the bottom, the locking bar of the restraining means passes through the guide portion of the lock receiver against the urging force and is locked in the locking hole by only the lifting operation. On the other hand, the locking bar is released from the locking hole of the lock receiving member by operating the operating lever of the restraining means to release the restraining state, and the locked state is stored below the bottom. The lock receiver in which the locking bar of the restraining means is locked has a locking hole, and a guide portion for guiding the locking bar to the locking hole. The weir that separates the The locking bar of the restraining means passes over the weir separating the guide portion and the locking hole, and is brought into a restrained state and a restrained release state only by raising and lowering the fence portion. Retractable side fence in the bed etc. described.