JPH11235253A - Side fence of bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrange the an arm for nursing at an optimum position for a user regardless of differences in bed kinds and body dimension or the like. SOLUTION: A side fence 13 is attached to the fixing member of a bed. In this case, and side fence 13 of the bed is constituted of a fixing side fence part 20 be fixed to the fitting part of the fixing member, a mobile side fence part 21 arranged in the fixing side fence part 20 so as to be movable in its longitudinal direction and the care arm for nursing 22 in the end part of the mobile side fence part 21 so as to be freely rocking possible and also changing and adjusting possible in the vertical positions of a handrail part 22A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side fence of a bed attached to a fixing member of the bed.

[0002]

2. Description of the Related Art The side fence is provided to prevent a sick or aged person falling asleep or the like from falling. And
This side fence is provided with a care arm for nursing care on the fixed side fixed to the side frame so that it can be used as a clue when rising and as a handrail when getting off the bed, in addition to preventing falling etc. There is a side fence that is swingable and can be fixed at an arbitrary swing angle (for example, JP-A-7-298960).

According to the above configuration, the care arm can be fixed at a desired swing angle, and can be used as a clue when getting up or a handrail when getting down from a bed.
Since the mounting position of the side fence, that is, the position of the mounting hole for inserting the leg of the side fence from the front and rear ends of the bed differs depending on the type of bed, the care arm can be used for users who use the bed such as sick or elderly people. On the other hand, it was impossible to set the bed at the optimal position in the front-back direction, and it was difficult to use. Note that the pitch between the mounting holes is unified to the same pitch even when the type of bed is different. Also, not only can not cope with the difference in the physique of the user, the height of the side frame that is a fixing member of the bed, the thickness of the mat to be placed on the bed, furthermore, due to the difference in the physique of the user It was necessary to adjust the vertical position of the nursing care arm, but there was no one that could cope with this, and early improvement was requested.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned situation, the present invention seeks to solve the problem by setting a care arm at an optimum position for a user regardless of the type of bed or the difference in physique. Is to be able to arrange.

[0005]

According to the present invention, in order to solve the above-mentioned problems, in a bed in which a side fence is attached to a fixing member of a bed, the side fence is fixed to a mounting portion of the fixing member. The fixed side fence, the movable side fence provided on the fixed side fence so as to be movable in the longitudinal direction thereof, and the end of the movable side fence is swingable, and the vertical position of the handrail is The side fence of the bed is constituted by the care arm provided so that it can be changed and adjusted. Therefore, the nursing arm attached to the end of the movable side fence can be moved by adjusting the movable side fence in the longitudinal direction with respect to the fixed side fence fixed to the mounting portion of the bed fixing member. It can be arranged at an optimum position for the user in the front-rear direction. Then, the care arm is swung with respect to the movable fence to set the care arm at a desired swing angle. Thereafter, by changing the vertical position of the handrail of the care arm, the vertical position of the handrail of the care arm can be set to a position that is optimal for the user.

[0006] The fixed side fence comprises a U-shaped outer tube comprising a pair of vertically parallel horizontal tubes, a vertical tube connecting one end of each of the horizontal tubes, and the lower tube. And a connecting pipe vertically connected across the upper and lower horizontal pipes of the outer pipe, and an open end of the upper and lower horizontal pipes. In each case, two stopper members for allowing the ends of the movable side fence to be inserted and pressing against the outer surface of the inserted movable side fence to prevent the movement of the movable side fence are provided in the connection pipe. A stopper operating member that is disposed vertically and moves these stopper members to a stopper action position protruding into the horizontal pipe portion from the upper opening and the lower opening of the connecting pipe, respectively, and a stopper releasing position retracted from the horizontal pipe portion. The both stopper members Disposed between, it is provided a stopper movable screw that moves operating the stopper operating member horizontally screwed in the horizontal direction on the stopper operating member. When the stopper movable screw is rotated in one direction, the stopper operation member moves in one horizontal direction, both stopper members move to the stopper action position, and the stopper member abuts and presses the outer surface of the movable side fence. Thus, the movable fence is pressed and fixed to the fixed fence. When the stopper movable screw is rotated in the direction opposite to the above direction, the stopper operation member moves in the direction opposite to the horizontal direction, and both stopper members move to the stopper release position, and the movable side fence is moved. The movable side fence can be moved relative to the fixed side fence apart from the outer surface of the section.

An up-down adjustment transmission member is connected to the lower end of a shaft for swingably supporting the care arm, and an up-down adjustment bolt for moving the up-down adjustment transmission member up and down is screwed from below. Is converted into a vertical movement of the vertical adjustment transmission member. When the up / down adjustment bolt is rotated in one direction, this rotational force is converted into a force to move the up / down adjustment transmission member up and down, thereby moving the up / down adjustment transmission member upward, for example, and moving the up / down adjustment bolt in the above direction. When the rotation operation is performed in the opposite direction, the rotational force is converted into a force for vertically moving the vertical adjustment transmission member, thereby moving the vertical adjustment transmission member downward, for example, and thereby changing and adjusting the vertical position of the care arm steplessly. be able to.

The cross section of the up / down adjustment transmission member is polygonal, and a care arm swing angle selection gear is externally fitted to the up / down adjustment transmission member, and is formed on the side surface of the care arm swing angle selection gear. A stopper gear having a tooth portion that meshes in a horizontal direction with a part of the tooth portion is configured to be releasable. By externally fitting the care arm swing angle selection gear to the up / down adjustment transmission member, the up / down adjustment transmission member is prevented from being rotated by the rotational force transmitted from the up / down adjustment bolt to the up / down adjustment transmission member. It can also be configured as a member for changing the vertical position of the adjustment transmission member. By engaging the stopper gear with the care arm swing angle selection gear in the horizontal direction, the care arm can be fixed at that position. By forming the tooth portion on the side surface of the care arm swing angle selection gear, it is possible to form a tooth portion with a finer pitch than in the case where the tooth portion is formed on the upper and lower surfaces, and to reduce the care arm swing angle. It can be set finely.

[0009] Two legs are provided, and each of these legs is fixed to a tubular case pipe fixed to the lower horizontal pipe portion, and inserted and fixed to the case pipe from below, and A holder fixing leg and a housing that can be inserted into a holder installed in the opening hole of the fixing member, and a holder fixing lever can be inserted into each of the two case pipes on the inner surfaces of the case pipes facing each other. The holder fixing lever inserted into this mounting hole is swingably attached, and a holder fixing stopper inserted into the holder fixing leg and housing from above and a swing of the holder fixing lever are provided. Pressing the holder fixing stopper, presses the upper side of the holder fixing stopper against the inner surface of the case pipe, and The pressing surface for securing the legs against the underside of the over fixed stopper attaching portion of the fixing member through an opening in formed in the holder fixing Ashiken housing is allowed provided to the holder fixing lever. By swinging the holder fixing lever in one direction, the upper side of the holder fixing stopper is pressed against the inner surface of the case pipe. At this time, a force for rotating around the horizontal axis at the intermediate portion acts on the holder fixing stopper. That is, a force in a direction opposite to the pressing force acts on the lower side of the holder fixing stopper, and the lower side of the holder fixing stopper is pressed against the mounting portion of the fixing member through the opening formed in the holder fixing leg and housing, and The part can be fixed to the fixing member side. Further, by swinging the holder fixing lever in the direction opposite to the above direction, the pressing of the holder fixing stopper against the mounting portion of the fixing member can be released, and the leg can be removed from the fixing member. . The holder fixing stopper can be set only by inserting the holder fixing stopper into the holder fixing leg / housing from above.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 show an electric lifting type bed, which is arranged at a pair of left and right side frames 1, 2 and at the front and rear ends of the side frames 1, 2. FIG. The headboard 3 and the footboard 4, the floor 5 placed on the side frames 1 and 2, and the floor mechanism 5, which is driven by the link mechanisms 6 and 6 for raising and lowering the floor, raise and lower the floor 5.
An electric motor 7 and a second electric motor 8 for swinging a back floor 9 constituting the floor portion 5 are configured as main members. The present invention can be applied to a bed that does not use an electric power, in addition to the electric lifting bed.

The floor 5 includes a back floor 9 located on the front side of the bed, a seat floor 10 located immediately behind the bed, a knee floor 11 located immediately behind the bed, and a knee floor 11 located immediately behind the floor. And the leg floor 12 located on the side. The upper body can be raised by swinging the back floor 9 by about 45 degrees as shown by a two-dot chain line in FIG. 1 by the second electric motor 8 as described above. This back floor 9
Is not limited to 45 degrees, and may be set to any swing angle.

A substantially C-shaped fixing member 14 for attaching a side fence 13 is fixed to the upper surface of the back floor 9 and the upper surface extending from the knee floor 11 to the leg floor 12, respectively. Each of these fixing members 14 is located at the front and rear of the support members 16, 16 in the front and rear posture having mounting portions 15 for inserting the legs 20 </ b> B, 20 </ b> B of the side fence 13 at the front and rear ends. Attachment parts 15.
And a reinforcing member 18 having a length extending from the mounting portion 15 located on the side of the mounting portion 15 away from the board 3 or 4 to the side frame 1 or 2. As shown in FIG. 7, a holder 19 is fitted into an opening 15A formed substantially at the center of the mounting portions 15. Fixing the fixing member 14 to the side frame 1 or 2
You may comprise from itself. In this embodiment, the side fences 13 are provided only on one of the left and right sides of the front side. However, the side fences 13 may be provided on both right and left sides, or may be provided on the rear side.

As shown in FIGS. 3 and 4, the side fence 13 has a fixed side fence 20 which is inserted into and fixed to the holder 19, and is movable on the fixed side fence 20 in the longitudinal direction thereof. The movable fence 21 to be fixed and the movable fence 2
1 and a nursing arm 22 that is swingable at one end and the vertical position of the handrail portion 22A is fixed to be changeable.

The fixed side fence 20 has a pair of vertical pipes 20a, 20a which are parallel to each other, and these horizontal pipes 20a, 20a.
U consisting of a vertical tube portion 20b connecting one end of each
20A, and two legs 20B, 20B fixed to the lower horizontal tube 20a.
And horizontal pipe portions 20a, 20 above and below the outer pipe portion 20A.
and a plurality of connecting pipes 20C connected to each other.

As shown in FIGS. 3, 5 and 9, the movable side fence 21 is connected to one end of two pipes 21A, 21A.
23 consisting of two divided cases 23A and 23B
To form a substantially U-shape. Then, the free ends of the two pipes 21A, 21A constituting the movable side fence 21 are inserted into the open ends of the upper and lower horizontal pipes 20a, 20a, respectively. Two stopper members 24A and 24B for pressing against the outer surface of 21A to prevent the movable side fence 21 from moving are connected to the connecting pipe 2
0C... Are arranged vertically above and below the connecting pipe 20C located on the opening end side of the horizontal pipe sections 20a, 20a, and these stopper members 24A, 24B are connected to the upper opening 20K and the lower opening of the connecting pipe 20C. 20H each horizontal pipe 2
A stopper operation member 25 for moving between a stopper action position (see FIG. 6) protruding into the inner tube 0a, 20a and a stopper release position retracted from the horizontal tube portions 20a, 20a is disposed between the two stopper members 24A, 24B. And a stopper movable screw 26 which is screwed into the stopper operation member 25 from the horizontal direction to move and operate the stopper operation member 25 in the horizontal direction. 26A shown in the drawing is a washer for rotatably supporting the stopper movable screw 26.

Accordingly, after inserting the wrench 27 into the hole formed in the stopper movable screw 26, the wrench 27 is rotated in the direction opposite to the direction of the arrow in FIG. 8 to rotate the stopper movable screw 26 in the opposite direction. Then, the stopper operation member 25 is drawn toward the wrench 27 side. At this time, the tapered surfaces 25A, 25A of the stopper operating member 25
A is the tapered surface 24 of the stopper members 24A and 24B.
a, 24b, and the stopper member 24
The upper and lower ends of A and 24B press the outer surfaces of the pipes 21A and 21A so that the movable fence 21 can be pressed and fixed to the fixed fence 20. Also, by rotating the wrench 27 in the direction of the arrow in FIG. 8, the stopper movable screw 26 is rotated in the same direction, and the stopper operating member 2 is rotated.
5 moves to the side away from the wrench 27. At this time, the tapered surfaces 25A, 25A of the stopper operating member 25 are connected to the tapered surfaces 24a, 24A of the stopper members 24A, 24B.
b is released, and the movable fence 21 can be moved relative to the fixed fence 20.

The care arm 22 includes a cylindrical handrail portion 22A formed in a substantially U-shape, and the handrail portion 2A.
It consists of a urethane tube 22B covering the surface of 2A and a spherical body 28 screwed in to close the opening at the free end of the handrail 22A. As shown in FIGS. 5 and 9, the lower end of the handrail 22A on the side of the movable fence 21 is externally fitted to a grip shaft 29 supported by the housing 23, and then connected and fixed by a pin 31A. A vertically adjustable transmission member 3 having a hexagonal cross section at the lower end of the shaft 29.
After the upper end of 0 is internally fitted, it is connected and fixed by the pin 31B,
An up / down adjustment bolt 32 provided with a rotary operation knob 32A for vertically moving the up / down adjustment transmission member 30 is screwed from below, and the up / down adjustment bolt 32 and the up / down adjustment transmission member 3 are engaged.
0, a bolted nut 33 and a lower collar 34 are provided. In addition, 45 shown in the figure is an upper collar located on the upper side. A care arm swing angle selection gear 35 is externally fitted to the vertical adjustment transmission member 30, and a tooth portion 36A is provided on a side surface of the care arm swing angle selection gear 35 so as to mesh with a part of a tooth portion 35A formed. The stopper gear 36 is configured to be releasable. Therefore, the rotary operation knob 32A
5 can be moved in the direction shown in FIG. 5 to move the up-down adjustment transmission member 30 upward and raise the nursing care arm 22, and rotate the knob 32A for rotation operation in the opposite direction to the above direction. By operating, the up-down adjustment transmission member 30 can be moved downward, and the care arm 22 can be lowered.

The stopper gear 36 is provided in the housing 2
3 is urged by a linear spring 37 provided to the side of the care arm swing angle selection gear 35 away from the tooth portion 35A. Further, a grip fixing lever 38 for pressing from the rear side of the stopper gear 36 to the side where the spring 37 is engaged against the urging force of the spring 37 is connected to the pin 3.
9 so as to be swingable around the horizontal axis. When the grip fixing lever 38 is in the position shown in FIG. 5, the engagement between the care arm swing angle selection gear 35 and the stopper gear 36 is released, so that the care arm 22 is fixed to the fixed side fence around the vertical axis X. It can be configured to be swingable from a position in line with 20 to a position displaced outward by 130 degrees (see FIG. 4), and the care arm 2 is moved to a desired position.
When 2 is positioned, the grip fixing lever 38 is pivoted in the direction shown in FIG. 5 so that the care arm pivot angle selection gear 35 and the stopper gear 36 mesh with each other.
The care arm 22 can be fixed. In many cases, the swing angle of the care arm 22 is actually set within 90 degrees, and the maximum swing angle of 130 degrees or less or 1
An arbitrary maximum swing angle of 30 degrees or more may be set.

The legs 20B are shown in FIGS. 3, 7 and 8 respectively.
As shown in the figure, a cylindrical case pipe 40 fixed to the horizontal pipe portion 20a, and a holder fixing leg which is fixedly inserted into the case pipe 40 from below and which can be inserted into the holder 19 from above. And a housing 41.

The front and rear case pipes 40, 4
A mounting hole 40A through which the holder fixing lever 42 can be inserted is formed in each of the inner surfaces of the case pipes 40 and 40 facing each other, and the holder fixing lever 42 inserted into the mounting hole 40A passes through the case pipe 40. A holder which is swingably attached via a pin 43 to be inserted into the holder fixing leg / housing 41 from above, and is rotatably held at a predetermined angle around a horizontal axis center of an intermediate portion in the inserted state. By rotating the holder fixing stopper 44 by swinging the fixing stopper 44 and the holder fixing lever 42, the lower side of the holder fixing stopper 44 passes through the opening 41 formed in the holder fixing leg / housing 41. Pressing surface 42 for contacting the inner surface of holder 19 and fixing leg 20B
A is provided on the holder fixing lever 42. Therefore, the holder fixing lever 42 is moved in the direction of the arrow shown in FIG.
That is, by swinging downward, the upper side of the holder fixing stopper 44 is pressed against the inner surface of the case pipe 40. At this time, a force is applied to the holder fixing stopper 44 so as to rotate around the horizontal axis at the intermediate portion. That is, a force in a direction opposite to the pressing force acts on the lower side of the holder fixing stopper 44, and the lower side of the holder fixing stopper 44 is applied to the inner surface 19 </ b> A of the holder 19 through the opening 41 </ b> A formed in the holder fixing leg / housing 41. The leg portion 20 </ b> B can be fixed to the mounting portion 15 by being pressed. Further, by pressing the holder fixing lever 42 in a direction opposite to the above direction, the pressing of the holder fixing stopper 44 against the inner surface 19A of the holder 19 is released, and the leg portion 20B is removed from the mounting portion 15. Becomes possible.

The legs 20B may be configured as shown in FIG. That is, the holder fixing lever 47 attached via the pin 46 so as to swing freely around the horizontal axis in the case pipe 40, and the pressing surface 47A of the holder fixing lever 47 by the swing operation of the holder fixing lever 47.
The rod-shaped body 48 pressed downward by the
A cylindrical support member 49 fitted and fixed to the case pipe 40 to support the inner case 19; a stopper member 50 pressed against the inner surface 19A of the holder 19 by the downward movement of the rod 48; And a coil spring 51 for biasing the movement. As shown in FIG. 11, the stopper member 50 includes a hole 50A whose diameter becomes smaller toward the lower end side where the conical portion 48A at the lower end of the rod-shaped body 48 enters. It is set at a position displaced closer to one side of the set distance than the center P. The stopper member 50 is inserted into the support member 49 through a horizontal through hole 49A formed at the lower end of the support member 49, and at the uppermost position of the rod body 48, one of the conical portions 48A of the rod body 48 is formed. Since the portion enters the hole 50A of the stopper member 50, the stopper member 50
This prevents the support member 49 from being detached from the through-hole 49 </ b> A. Therefore, when the holder fixing lever 47 is swung from the position indicated by the two-dot chain line in FIG. 10 to the position indicated by the solid line, the pressing surface 47A of the holder fixing lever 47 is pressed.
The rod 48 is pressed downward against the urging force of the coil spring 51. Along with this, the tapered surface of the conical portion 48A of the rod-shaped body 48
, The stopper member 50 protrudes outward through the through hole 49A of the support member 49, the outer surface of the stopper member 50 is pressed against the inner surface 19A of the holder 19, and the leg portion 20B is rubbed against the mounting portion 15. Can be fixed by force. When the leg portion 20B is to be removed from the mounting portion 15, the pressing force on the rod 48 is reduced by swinging the holder fixing lever 47 from the position indicated by the solid line in FIG. To release. As a result, the rod-shaped body 48 is moved upward by the urging force of the coil spring 51, the contact between the outer surface of the stopper member 50 and the inner surface 19A of the holder 19 is released, and the leg portion 20B can be removed from the mounting portion 15. . The holder fixing lever 47 may be changed to a shape as shown in FIG. That is, although the holder fixing lever 47 is formed in a substantially L shape in a side view, the holder fixing lever 52 may be formed in a substantially U shape in a side view as shown in FIG.
With such a shape, the hole 40A of the case pipe 40 required for the holder fixing lever 52 to swing can be reduced, and the shape-retaining strength of the case pipe 40 is increased accordingly. be able to. Other parts are the same as those in FIG.

[0022]

According to the first aspect, the position of the care arm in the front-back direction of the couch and the vertical position of the handrail portion of the care arm are optimally set for the user irrespective of the type of the couch or the difference in the physical size. , And the care arm can be used effectively.

According to the second aspect of the present invention, the movable fence is fixed to the fixed fence by a stopper member abutting on the outer surface of the end of the movable fence, so that the movable fence can be modified. Can be eliminated. In addition, by providing the stopper member in the connecting pipe which is originally provided, not only can the member supporting the stopper member be unnecessary, but also because the connecting pipe serves as a cover member, the stopper member can be in contact with another object. It is possible to avoid damage due to this.

According to the third aspect, the structure in which the rotational force of the up-down adjustment bolt is converted into the up-down movement of the up-down adjustment transmission member allows not only the up-down adjustment of the care arm to be steplessly adjusted, but also Even if a stopper or the like is not provided, it is possible to prevent the care arm from falling under a load.

According to the fourth aspect, the teeth are formed on the side surface of the care arm swing angle selection gear, so that the teeth are formed with a finer pitch than when the teeth are formed on the upper and lower surfaces. The swing angle of the care arm can be set finely. The teeth of the stopper gear on the side that meshes with the care arm swing angle selection gear may be provided with teeth that mesh with a part of the range of the care arm swing angle selection gear. Can be planned.

According to the fifth aspect, the holder fixing stopper is pressed against the mounting portion of the fixing member, thereby making it unnecessary to modify the mounting portion of the fixing member. Moreover, since the holder fixing stopper can be set only by inserting the holder fixing stopper from above the holder fixing leg / housing, not only the assembling work can be facilitated quickly, but also the holder fixing stopper is pivotally supported by the pin. In the case of a product, the precision of the component is required, but there is a manufacturing advantage that does not require such precision of the component.

[Brief description of the drawings]

FIG. 1 is a side view of a bed.

FIG. 2 is a plan view of a bed.

FIG. 3 is a side view of a side fence.

FIG. 4 is a plan view of a side fence.

FIG. 5 is a longitudinal sectional view showing an attachment portion between the care arm and the movable fence.

FIG. 6 is a longitudinal sectional view showing a fixing structure of a fixed side fence and a movable side fence.

FIG. 7 is a longitudinal sectional view showing a fixing structure of a side fence to a mounting portion.

FIG. 8 is an exploded perspective view showing a main part of the side fence.

FIG. 9 is an exploded perspective view showing a lock structure of the care arm.

FIG. 10 is an explanatory view showing the shape of a stopper member.

FIG. 11 is an exploded perspective view showing a main part of a side fence.

FIG. 12 is a longitudinal sectional view showing another form of the holder fixing lever of the leg.

[Explanation of symbols]

1,2 side frame 3 head board 4 foot board 5 floor 6 link mechanism 7 1st electric motor 8 2nd electric motor 9 back floor 10 seat floor 11 knee floor 12 leg floor 13 side fence 14 fixing member 15 mounting Part 15A Opening 16 Supporting member 17 Connecting member 18 Reinforcing member 19 Holder 19A Inner surface 20 Fixed side fence 20A Outer tube 20B Leg 20C Connecting tube 20a Horizontal tube 20b Vertical tube 20K, 20H Opening 21 Movable fence 21A Tube 22 Care arm 22A Handrail 22B Urethane tube 23 Housing 23A, 23B Split case 24A, 24B Stopper member 24a, 24b Tapered surface 25 Stopper operating member 25A Tapered surface 26 Stopper movable screw 26A Washer 27 Wrench 28 Spherical body 29 Grip shaft 30 Vertical adjustment transmission member 31A, 31B Pin 32 Vertical adjustment bolt 32A Rotating knob 33 Bolt nut 34 Lower collar 35 Care arm swing angle selection gear 35A Tooth 36 Stopper gear 36A Tooth Part 37 Spring 38 Grip fixing lever 39 Pin 40 Case pipe 40A Mounting hole 41 Holder fixing leg and housing 41A Opening 42 Holder fixing lever 42A Pressing surface 43 Pin 44 Holder fixing stopper 45 Upper collar 46 Pin 47 Holder fixing lever 48 Rod 48A Conical part 49 Support member 49A Through hole 50 Stopper member 50A hole 51 Coil spring 52 Holder fixing lever X Vertical axis

Claims (5)

[Claims] 1. A bed in which a side fence is attached to a fixing member of a bed, the side fence is fixed to an attachment portion of the fixing member, and a fixed side fence is attached to the fixed side fence in a longitudinal direction. The bed comprises a movable side fence movably provided at the end of the bed, and a nursing arm provided at the end of the movable side fence so as to be swingable and capable of changing the vertical position of the handrail. Side fence. 2. A U-shaped outer tube comprising: a pair of horizontal pipes which are vertically parallel to each other; and a vertical pipe which connects one end of each of the horizontal pipes. An opening of the upper and lower horizontal pipe sections, comprising a leg fixed to the lower horizontal pipe section and a connecting pipe vertically connected to the upper and lower horizontal pipe sections of the outer pipe section. The two ends of the movable fence can be inserted into the respective ends, and two stopper members are pressed against the outer surface of the inserted movable fence to prevent the movable fence from moving. A stopper that is disposed above and below the pipe, and moves these stopper members to a stopper action position that protrudes into the horizontal pipe section from the upper opening and the lower opening of the connecting pipe, respectively, and a stopper release position that retreats from the horizontal pipe section. Operation member is both stopper members 2. The side fence of the bed according to claim 1, further comprising a stopper movable screw which is disposed between the stopper operating member and screwed to the stopper operating member from a horizontal direction to move the stopper operating member in a horizontal direction. 3. A vertical adjusting transmission member is connected to a lower end of a shaft for swingably supporting the nursing arm, and a vertical adjusting bolt for vertically moving the vertical adjusting transmitting member is screwed from below. 2. The side fence of a bed according to claim 1, wherein the rotation of the adjustment bolt is converted into a vertical movement of a vertical adjustment transmission member. 4. A cross section of the up / down adjustment transmission member is formed in a polygonal shape, and a care arm swing angle selection gear is externally fitted to the up / down adjustment transmission member. The side fence of a bed according to claim 1 or 3, wherein a stopper gear provided with a tooth portion that meshes in a horizontal direction with a part of the formed tooth portion is configured to be releasable. 5. The apparatus according to claim 1, further comprising two legs, each of which is
A cylindrical case pipe fixed to the lower horizontal pipe portion, and a holder which is inserted into the case pipe from below and fixed, and which can be inserted into a holder provided in an opening of the fixing member. A fixing hole is formed on the inner surface of each of the case pipes facing each other, the holder fixing lever being inserted into the mounting hole. The holder fixing stopper is inserted to the holder fixing leg and housing from above, and the holder fixing stopper is pressed by swinging the holder fixing lever, so that the upper side of the holder fixing stopper is Press down against the inner surface of the case pipe, and use the lower side of the holder fixing stopper as the holder fixing leg. According to claim 1 or 2, wherein the side fence of the bed a pressing surface composed let provided in the holder fixing lever for fixing the legs against the mounting portion of the fixing member through an opening of the formed Ujingu.