JPH0748122Y2 - Bed equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed apparatus in which a side fence is provided on a side portion of a bed frame so that the side fence can be undulated.

[0002]

2. Description of the Related Art Bed equipment is provided with side fences on the sides of the bed frame for the purpose of preventing the user lying on the mattress from falling and the futon from slipping off. There is something I did. It is known that the side fences can be raised and lowered so that it is convenient for a user (patient) to get on and off a mattress or to undergo medical examination.

A bed apparatus provided with such a side fence is known from Japanese Utility Model Publication No. 2-16688. In the side fence shown in this publication, upper and lower ends of a plurality of vertical rods are rotatably connected to an upper horizontal member and a lower horizontal member, respectively. That is, the vertical rod is configured so that it can be raised and lowered together with the upper and horizontal members with the lower end as a fulcrum. The vertical rod can be held non-rotatably by a stopper mechanism while standing upright almost vertically. Therefore, when using the side fence, the vertical rod may be held in an upright state, and when not in use, the vertical rod may be laid down by operating the stopper mechanism.

By the way, in such a conventional structure, the vertical rod is provided with a through hole at the lower end thereof along the radial direction, and a support shaft inserted into the through hole is provided in the lower lateral member. By attaching to the attachment member, the vertical rod is rotatably connected. However, in such a structure, in order to improve the manufacturability and the assemblability, it is unavoidable that a play occurs between the support shaft and the through hole formed in the vertical rod. That is, the inner diameter of the through hole is made larger than the outer diameter of the support shaft within a certain range. Therefore, if the vertical rod is erected when using the side fence, the vertical rod will swing in the width direction of the bed, which is the direction intersecting the plane formed by the direction of rotation, so that the patient can grasp the side fence. The side fence swings when you get up on the bed,
It sometimes gave the patient anxiety.

[0005]

[Problems to be Solved by the Invention] As described above, since the vertical rod of the conventional side fence sometimes shakes when grasped when the patient stands up on the bed, it may cause anxiety to the patient. there were.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a bed apparatus in which a vertical rod is prevented from swinging in a state in which the vertical rod is erected to use a side fence. Especially.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is directed to a bed frame in which a side fence including an upper horizontal member, a lower horizontal member, and a plurality of vertical rods having upper and lower ends pivotally attached to the upper and lower horizontal members. In the bed device provided on the side of the elbow member, one end of a substantially L-shaped elbow member is integrally provided at the lower end of the vertical rod, and a support shaft is provided at the other end of the elbow member. And the other end is provided so as to project from a vertical surface parallel to the axis of the vertical rod, and the other end of this support shaft is provided on the lower horizontal member .
It penetrates in the width direction and two places of the penetrating part are the above-mentioned lower lateral parts
It is rotatably supported by the material, and the vertical surface of the elbow member is supported by the side surface of the lower lateral member.

[0008]

According to the above construction, since the supporting shaft is projected from the vertical surface of the elbow member, the vertical surface can be joined to and supported by the side surface of the lower lateral member. It becomes difficult for the vertical rod with which is integrated to swing.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The bed apparatus shown in FIGS. 4 and 5 is a bed frame.
Equipped with Mu 1. The bed frame 1 has a pair of side members 2 that are spaced apart and opposed to each other in parallel. A head board 3 is provided at one end of the side members 2 in the longitudinal direction and a foot board is provided at the other end thereof.
The planar shape is formed in a rectangular frame shape by connecting the terminals 4.

A receiving bar 5 is provided at the lower end portion on the inner surface side of each side member 2 over substantially the entire length in the longitudinal direction. A floor plate 6 is erected on these receiving bars 5 by engaging both widthwise end portions thereof. A mattress 7 is placed on the floor plate 6. As shown in FIG. 4, legs 8 for supporting the bed frame 1 at a predetermined height are provided on the lower surfaces of both ends of the receiving bars 5 in the longitudinal direction.

A side fence 11 is provided on the upper end surface of the side member 2. This side fence 11 is shown in FIG. 1 and FIG. 2 or FIG.
As shown in FIG. 3, the upper horizontal member 12 and the lower horizontal member 13 are separated in parallel in the vertical direction. As shown in FIG. 2, the upper lateral member 12 is attached to the lower surface of the core member 14 at a predetermined interval with the open end facing downward on the lower surface of the core member 14 having a substantially U-shaped cross section. A plurality of bag-shaped mounting members 16 that are U-shaped and open at one side and the lower end surface thereof;
It is composed of a synthetic resin cover 17 which covers the core material 14.

An upper end of a vertical rod 18 is rotatably connected to each mounting member 16. That is, a sleeve 19 is provided at the upper end of the vertical rod 18 so as to penetrate in the radial direction as shown in FIG. The sleeve 19 is provided with a pair of shaft-like projections 21 having a smaller diameter on the front end side than on the base end side, connected by a coil spring 22 and projecting the front end portion. On the other hand, a pair of engagement holes 22a into which the small-diameter portion of the projecting body 21 fits are formed on both inner surfaces of the mounting member 16. Therefore, the mounting member 16 is fitted into the upper portion of the vertical rod 18 in a state where the pair of projections 21 are retracted into the sleeve 19 against the biasing force of the coil spring 22, and the projection 21 is engaged with the engaging hole 22a. Of the upper lateral member 12 and the vertical rod 18 because the projecting body 21 engages with the engaging hole 22a.
And can be detachably connected.

According to such a connecting structure, the mounting member 1
Since the projecting body 21 does not project to the outer surface of 6, the hand or clothes are not caught on the projecting body 21 when the side fence 11 is undulated as will be described later. Further, if the pair of protrusions 21 are pressed from the open end side of the engagement holes 22a and pushed into the sleeve 19, the upper lateral member 12 can be easily removed from the vertical rod 18, so that assembly and replacement can be performed. You can do it easily.

The means for urging the pair of protrusions 21 is not limited to the coil springs 22, but U-shaped leaf springs (not shown) are used, and the protrusions 21 are attached to the outer surfaces of both ends. Good.

As shown in FIGS. 1 and 2, an L-shaped elbow member 23 made of synthetic resin or aluminum is integrally provided at the lower end of the vertical rod 18. That is, the lower end of the vertical rod 18 is embedded in one end of the elbow member 23. In addition, one end of the support shaft 24 in which a step is formed is embedded in the other end of the elbow member 23. The other end of the support shaft 24 projects from a vertical surface 23a of the elbow member 23 parallel to the axis of the vertical rod 18, and a male screw 24a is formed at the tip. Elbow member 2
3, a disk-shaped convex portion 25 is formed on the vertical surface 23a, and the convex portion 25 has a ring-shaped washer 2 made of a material having a low friction coefficient such as Teflon and a high wear resistance.
6 is attached.

The lower lateral member 13 is a rectangular tubular member. The pair of side walls in the width direction of the lower lateral member 13 has through holes 2
7 is correspondingly drilled. The support shaft 24 is rotatably inserted through the through holes 27 through a pair of bushes 28 attached to one end and the other end thereof. Male screw 2 of support shaft 24 protruding from the inner side wall of lower lateral member 13
A bag-shaped nut 29 is screwed onto 4a. This nut 2
By tightening 9, the vertical surface 23 a of the elbow member 23 is joined and supported by the side surface of the lower lateral member 13 via the washer 26. That is, the vertical rod 18 includes the elbow member 23 and the support shaft 2.
It is rotatably connected to the lower lateral member 13 via 4.

The lower ends of the plurality of vertical rods 18 are connected to the lower horizontal member 13 so that they are parallel to each other. As a result, the side fence 11 has the vertical rod 18 as shown in FIGS.
It is possible to rotate from the standing state shown in to the lying state shown by the chain line. A state in which the vertical rod 18 is laid down is shown by a chain line in FIG.

The vertical rod 18 located closest to the footboard 4 side
As shown in FIG. 1, a top 31 is attached to the upper part of the. A pin-shaped protrusion 32 is horizontally provided on the top 31 toward the footboard 4 side. One end side of the top 31 on which the protrusion 32 is provided is formed as a taper portion 33 which is inclined in the vertical direction.

A stopper 35 of a stopper mechanism 34 shown in FIG. 2 is engaged with and disengaged from the protrusion 32. The stopper 35 has a bag-shaped lever portion 36 having an opening on the upper side and a through hole 36a formed at one end, and the lever portion at the upper end.
The insertion rod 38 is inserted into the bag portion through the through hole 36a of the portion 36, and the insertion end portion of the portion 36 includes an engaging rod portion 38 pivotally attached to one end portion of the lever portion 36 by a pin 37. Both ends of the pin 37 are connected to a supporting body 40 formed in a bag shape like the mounting member 16 mounted on the lower surface of the upper lateral member 12. The engaging rod portion 38 is biased by a spring 39 in the direction of the top 31 shown by the arrow A in FIG. 1, and one side of the engaging rod portion 38 abuts on one end of the inner peripheral surface of the through hole 36a and the lever portion 36. It is elastically held in a substantially L-shape.

A concave engaging portion 41 is formed on a side surface of the engaging rod portion 38 on the vertical rod 18 side. The pin 37 is automatically engaged with the engaging portion 41 when the vertical rod 18 is erected to be substantially vertical. When the pin 37 engages with the engaging portion 41, the vertical rod 18 is prevented from rotating in the upright direction indicated by the arrow B, so that the vertical rod 18 is held in that state, that is, in an upright state. Will be. At this time, the pin 37 engages with the engaging portion 41 while slidingly contacting the side surface of the engaging rod portion 38. Therefore, the engaging rod portion 38 of the stopper 35 is pressed by the pin 37. Even if the engaging rod portion 38 is pressed, since the engaging rod portion 38 is a separate body from the lever portion 36, only the engaging rod portion 38 has the spring 39 in the through hole 36a of the lever portion 38. The lever portion 36 does not rotate due to the rotation against the biasing force.

If the lever portion 36 is rotated when the vertical rod 18 is rotated in the upright direction, the lever portion 36 is rotated.
There is a possibility that a hand or the like may be caught between the upper side member 12 and the lower surface of the upper lateral member 12. However, since the lever portion 36 does not rotate, there is no such possibility.

The lever portion 36 of the stopper 35 is indicated by an arrow C.
By rotating in the direction indicated by, the engaging rod portion 38, which abuts one end of the through hole 36a, can be interlocked against the urging direction of the spring 25. As a result, the engagement between the engaging portion 26 and the pin 24 can be disengaged, so that the vertical rod 15 held in the upright state can be rotated in the fall direction.

FIG. 3 shows a connecting structure of the side member 2 of the bed frame 1 and the lower lateral member 13 of the side fence 11. That is, the side member 2 is in the shape of a rectangular tube, and the side member 2 and the lower lateral member 13 have through holes 2 penetrating in the corresponding positions in the height direction.
a and 13a are provided. These through holes 2a, 13a
A pipe member 43 having a stopper member 42 having a diameter larger than those of the through holes is fixed to the upper end of the pipe member 43. This pipe member 4
3 is shorter than the sum of the height dimensions of the side member 2 and the lower lateral member 13, and a female screw 43a is formed on the inner peripheral surface of the lower end thereof. Then, the through hole 13a in the lower end surface of the side member 2
By screwing the male screw 44 into the female screw 43a,
The lower lateral member 13, that is, the side fence 11 is attached and fixed to the side member 2.

According to the side fence 11 thus constructed,
When using, the vertical rod 18 is rotated in the upright direction to stop the stopper 3
If the protrusion 32 of the top 31 is engaged with the engaging portion 41 of 5,
Since each of the vertical rods 18 is held unrotatably in the upright state, the side fence 11 can be used.

In such a use state, the upright vertical rod 18 has an elbow member 23 provided at the lower end thereof.
The vertical surface 23a is joined to the side surface of the lower lateral member 13 via the washer 26. Therefore, since the vertical rod 18 is difficult to swing in the width direction of the bed frame 1 which is a direction orthogonal to the plane formed by the rotation direction, when the patient on the bed gets up and is grasped by the side fence 11, for example. There is no such thing as shaking to give the patient anxiety. The support shaft 24 rotatably connecting the elbow member 23 to the lower lateral member 13 is supported at a pair of side walls of the rectangular tubular lower lateral member 13 at one end and the other end. Since the support shaft 24 is difficult to swing in the direction orthogonal to the axial direction, this also makes it difficult for the vertical rod 18 to swing in the width direction of the bed frame 1.

Further, in order to use the side fence 11, the vertical rod 18
When is rotated in the upright direction, the protrusion 32 of the top 31 is automatically engaged with the engaging portion 41 of the stopper 35. That is, when the vertical rod 18 is raised up to a predetermined angle, the projection 32 comes into contact with the lower end of the engaging rod portion 38 of the stopper 35, and the engaging rod portion 38 is rotated against the urging force of the spring 39. The protrusion 32 is slidably contacted and is engaged when the protrusion 32 corresponds to the engaging portion 41. Thereby, the vertical rod 18 is held in the upright state.

As described above, when the projection 32 and the engaging portion 41 are automatically engaged, the stopper 35 is divided into a lever portion 36 and an engaging rod portion 38. Therefore, even if the engagement rod portion 38 is pressed by the protrusion 32, only the engagement rod portion 38 is rotated and the lever portion 36 is not rotated. Therefore, the lever portion 36 and the side fence 11 are not rotated. It is possible to prevent a hand or the like from being caught between the lower surface of the lateral member 12.

On the other hand, when not in use, when the lever portion 36 of the stopper 35 is rotated against the biasing force of the spring 39,
The engaging member 38 is interlocked with the rotation. Therefore, the engagement between the engagement portion 41 formed on the engagement rod portion 38 and the projection 32 provided on the top 31 can be disengaged.
Can be rotated in the fall direction. Although the vertical surface of the elbow member is brought into contact with the side surface of the lower lateral member via the washer in the above-described embodiment, the elbow member may be directly brought into contact with and supported.

[0029]

As described above, according to the present invention, one end of a substantially L-shaped elbow member is connected to the lower end of the vertical rod of the side fence, and the axial line of the vertical rod at the other end of the elbow member. A vertical shaft parallel to the vertical shaft of the elbow member, while supporting the lower shaft member of the side fence at two positions at the other end of the vertical shaft. Is supported on the side surface of the lower lateral member.

For this reason, since the vertical rod of the vertical rod of the elbow member is supported by the side face of the lower lateral member, it is difficult for the vertical rod to swing in the width direction of the bed frame which intersects with the rotation direction, so that the patient can move the side fence. When you grab and hold yourself up on the bed, the side fence will not shake and will not give you anxiety. Further, the support shaft has one end at the lower end of the vertical rod.
From the other end of the elbow member connected to
Since it penetrates through the material, it is not exposed to the outside and has a good appearance.
I like it.

[Brief description of drawings]

FIG. 1 is a sectional view of a portion of a stopper mechanism provided on an upper lateral member showing an embodiment of the present invention.

FIG. 2 is a sectional view of a connecting structure of the vertical rod and the lower and horizontal members.

FIG. 3 is a cross-sectional view of a connection structure of the side member and the lower lateral member.

FIG. 4 is a side view of the bed apparatus.

FIG. 5 is a sectional view likewise taken along the width direction.

[Explanation of symbols]

1 ... Bed frame, 11 ... Side fence, 12 ... Upper lateral member, 1
3 ... Lower horizontal member, 18 vertical rod, 23 ... Elbow member, 23a ...
Vertical surface, 24 ... Support shaft.

Claims (1)

[Scope of utility model registration request] 1. A bed apparatus in which a side fence including an upper horizontal member, a lower horizontal member, and a plurality of vertical rods having upper and lower end portions pivotally attached to them is provided on a side portion of a bed frame. One end of a substantially L-shaped elbow member is integrally provided at the lower end, and a support shaft is embedded in the other end of the elbow member and the other end is parallel to the axis of the vertical rod. It provided to protrude from the vertical plane, the other end of the support shaft of the lower lateral member
It penetrates in the width direction and two places of the penetrating part are the above-mentioned lower lateral parts.
Together and is rotatably supported on the timber, the bed apparatus vertical plane of the elbow member is characterized by comprising supported on a side surface of the lower lateral member.