JPH0339083Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a parallel link type side fence that is constructed on the side of a bed, patient carrier, etc. to prevent bedding such as futons or patients from falling. It is something.

(Prior Art and its Problems) Conventionally, parallel link type side fences include those shown in, for example, Japanese Patent Publication No. 54-23635 and Japanese Utility Model Publication No. 54-28511. As shown in FIG. 4, such a parallel link type side fence has a fence main body a supported by a pair of left and right rotation support arms c and c' so as to constitute a parallel link mechanism together with a floor support frame b. , by rotating and fixing the rotating support arms c, c',
By supporting the fence main body a above and bringing it into use, and by lowering the rotating support arms c and c', the fence main body a is put into a stored state below. In order to prevent the above-mentioned fall, the fence main body a in use requires a height above a specified level at the upper end, and also requires a fall prevention part between the top end and the floor. Vertical width is required. However, in such conventional side fences, the fence main body a is moved up and down as it is, and the vertical width in the used state becomes the vertical width in the stored state. If it is lowered, the lower end of the fence body a approaches the floor of the hospital room etc. in the stored state,
For example, there is a problem in that the legs of a bedside table cannot be inserted, which impedes the effective use of the space below the floor.

The present invention aims to solve such conventional problems, and will be described in detail below based on an embodiment in which the present invention is applied to a bed.

(Means for solving the problem) Reference numeral 1 indicates a bed, and 2 indicates a floor.
A pair of rotating support arms 3, 3' are provided on the left and right sides of the bed 1. The rotation support arms 3, 3' may be rotatably fixed directly to the floor 2, but in the illustrated example, the rotation support arms 3, 3' are fixed to the mounting member 4, and the rotation support arms 3, 3' are fixed to the mounting member 4. By protruding a mounting rod 5 in the lateral direction of the member 4, fitting the mounting rod 5 into a mounting cylinder 6 fixed to the floor 2, and fixing it with an appropriate fixture 7,
The structure is such that rotation support arms 3, 3' are provided on the sides of the bed 1. Therefore, above and below the rotation support arms 3, 3',
The upper and lower horizontal beam members 8 and 9 are connected to form a parallel link mechanism, and the upper and lower horizontal beam members 8 and 9 are
The upper and lower ends 8e and 9e are respectively arranged above and below the connection positions 10 and 11 with the rotary support arms 3 and 3'. At least one of the left and right rotational support arms 3 side of the upper horizontal beam member 8 and the other rotational support arm 3' side of the lower horizontal beam member 9 have recesses 1 in opposing directions, respectively.
2 and 13 are formed. The shapes of the upper horizontal bar member 8 and the lower horizontal bar member 9 may be determined as appropriate. For example, the upper horizontal bar member 8
Alternatively, a middle crosspiece member 14 may be provided on either one side of the lower horizontal crosspiece member 9 and protrudes toward the other side.

(Function) In the above configuration, as shown in FIG. 1, when the rotation support arms 3, 3' are rotated upward,
By fixing them unrotatably using an appropriate fixing mechanism, the upper and lower horizontal beam members 8 and 9 can be supported upward and put into use, thereby preventing beds such as futons, patients, etc. from falling. be able to.

However, as shown in FIG.
3' is rotated and lowered, the upper and lower horizontal members 8 and 9, which together form a parallel link mechanism, descend while approaching each other, and the left end of the upper horizontal member 8 is thus At the same time as the right end of the lower horizontal bar member 9 moves into the recess 13 of the lower horizontal bar member 9, the right end of the lower horizontal bar member 9 moves into the recess 12 of the upper horizontal bar member 8, and can be placed in the retracted state. In this way, the left and right ends of the upper and lower horizontal beam members 8 and 9 can move into the recesses 12 and 13, respectively, so the rotation stroke of the rotation support arms 3 and 3' can be increased. Therefore, the stroke of vertical movement of the upper and lower horizontal beam members 8, 9 can be increased. At the same time, the upper horizontal beam member 8 has its upper end 8e connected to the rotation support arms 3, 3' at the connection position 10.
Since it is configured above the upper horizontal bar member 8, when in use, the upper end 8e of the upper horizontal bar member 8 can be supported at a sufficient height to effectively prevent it from falling, and when in the stored state, can be supported sufficiently downward so that it does not interfere with getting on and off the floor. In this operation, the upper horizontal beam member 8
The lower horizontal bar member 9 constituting the parallel link mechanism moves closer to the upper horizontal bar member 8 as it moves from the usage state to the storage state as described above, that is, the upper and lower horizontal bar members 8 and 9 move closer to each other. The distance between the upper and lower ends 8e and 9e becomes narrower. Therefore, even if the upper end 8e of the upper horizontal bar member 8 is supported sufficiently downward in the stored state, the lower horizontal bar member 9
It is possible to prevent the lower end 9e of the
The height of the floor can be lowered without the lower end 9e coming too close to the floor of a hospital room or the like, making it impossible to insert the legs of a bedside table, for example. It is possible to easily get on and off the floor. In addition, if the distance between the upper and lower horizontal beam members 9 becomes too wide during use, while forming the recessed portions 12 and 13, the upper and lower horizontal beam members 8 and 9 may be ,
Middle beam member 14 protruding to the side of other horizontal beam members 9 and 8
By providing this, safety can be improved. Furthermore, as mentioned above, the rotational support arms 3, 3' may be rotatably fixed directly to the floor support frame 2;
As shown in the illustrated example, the mounting rod 5 is fixed to the mounting member 4 with a protrusion, and the mounting rod 5 is attached to the mounting tube 6.
If the fixing position of is variable, it is possible to lower it to the storage position as described above and then push the lower horizontal members 8 and 9 together with the mounting rod 5 to fix it as shown in FIG. 2c. In this way, it can be stored so as not to protrude from the side of the bed or the like. In addition, the member indicated by the reference numeral 15 in the drawings is an abutting member that comes into contact with the lower horizontal beam member 9 during storage, 16 is a buffer member, and 17 is a Harunback holder.

(Effects of the invention) As described above, the present invention has an upper and lower support arm connected to form a parallel link mechanism to a pair of left and right rotation support arms that are rotatably provided on the side of a bed, etc. The upper and lower ends of the horizontal bar member are respectively configured above and below the connection position with the rotation support arm, and at least one of the left and right rotation support arm sides of the upper horizontal bar member,
Since recesses in opposite directions are formed on the other rotation support arm side of the lower horizontal beam member, the rotation stroke of the rotation support arm, and therefore the vertical movement stroke of the upper and lower horizontal beam members, can be increased. When in use, the upper end of the upper horizontal beam member can be supported at a sufficient height to effectively prevent falling, and when stored, it can be supported sufficiently downward to prevent it from falling off the floor. This can be done so that it does not interfere with getting on and off the vehicle.
Furthermore, in the storage position, the space between the upper and lower ends of the upper and lower horizontal members becomes narrower, so the lower ends of the lower horizontal members are too close to the floor of the hospital room, etc., where they are installed, for example, on a bedside table. The height of the floor can be lowered without making it impossible to insert the legs, and thus the bed etc. can be configured so that getting on and off the floor can be done easily. There is.

[Brief explanation of the drawing]

1 to 3 correspond to an embodiment of the present invention, and FIGS. 1a and 1b are an explanatory front view and a side view, respectively, corresponding to the usage state of the side fence, and FIGS.
b and c are an explanatory front view, a side view, and a side view, respectively, corresponding to the stored state of the side fence;
b and c are explanatory front views of other examples. FIG. 4 is an explanatory front view of the conventional example. Symbols 1... Bed, 2... Floor, 3, 3'... Rotating support arm, 4... Mounting member, 5... Mounting rod, 6...
...Mounting tube, 7... Fixture, 8, 9... Upper and lower horizontal beam members, 10, 11... Connection position, 12, 13...
Recessed portion, 14...Inner beam member, 15...Abutment member, 1
6...Buffer member, 17...Harunback bracket.

Claims (1)

[Claims for Utility Model Registration] (1) Pairs of rotational support arms are provided on the left and right sides of the bed, etc., and upper and lower support arms are provided above and below the rotational support arms to form a parallel link mechanism. The lower horizontal bar members are connected, and the upper and lower horizontal bar members have their upper and lower ends located above and below the connection position with the rotation support arm, respectively, and at least the left and right ends of the upper horizontal bar member 1. A parallel link type side fence for a bed, etc., characterized in that recesses are formed in opposite directions on one rotational support arm side and on the other rotational support arm side of a lower horizontal beam member. (2) Utility model registration claim 1, characterized in that either the upper horizontal member or the lower horizontal member is provided with a middle member that projects toward the other horizontal member. Parallel link type side rails for beds, etc.