JP5703253B2 - Bed side fence device - Google Patents

Description

  The present invention relates to a bed side fence device which is provided on a side portion of a bed body so as to be able to fall down and can be held in a standing state by a stopper mechanism.

  For example, in a bed device for nursing care or the like, a side fence device can be provided on the side of the bed body in order to prevent the user and bedding used by the user from slipping off the bed body. ing. There are various types of side fence devices, and one of them is known to be configured to be foldable along the longitudinal direction intersecting the width direction on the side in the width direction of the bed body. .

  The side rail apparatus of the said structure has a lower horizontal member detachably attached to the bed main body, for example, side frame. The lower horizontal member is provided with lower ends of a plurality of support members connected to be rotatable at a predetermined interval with respect to the longitudinal direction. The upper end of each column member is connected to the upper horizontal member so as to be rotatable in a predetermined direction, that is, in one longitudinal direction of the bed main body.

  When the support member is erected almost vertically, the upper lateral member engages with a protrusion provided on the upper end of one of the support members, and the plurality of support members cannot stand upright in a standing state. A stopper mechanism is provided that is held so as not to rotate with respect to the one direction.

  Therefore, if the stopper mechanism is operated, the side fence in an upright state can be turned down along the longitudinal direction of the bed body.

  By the way, in the side fence device having the above-described configuration, the height of the upper lateral member, that is, the folding height is lowered in order not to disturb the user when the support member is not used when lying down. It is desired.

  On the other hand, when using the column member of the side fence device standing upright and holding, a part of the body such as the head does not get caught between the adjacent column members by the user on the bed device. In order to do so, it is required to provide the support members at a narrow interval with respect to the longitudinal direction of the bed body.

  However, if the support members are provided at a narrow interval with respect to the longitudinal direction of the bed body, the number of overlapping support members increases when the side fence device is laid down when not in use. May be high.

  Therefore, conventionally, the column member is made to be a bed by forming at least some of the plurality of column members provided in a line with respect to the direction of rotation of the side rail device in a flat shape with respect to the direction of rotation. Even if it is provided at a narrow interval with respect to the longitudinal direction of the main body, the height of the side fence device when folded is reduced.

JP 2009-118978 A

  By the way, if some of the plurality of support members have a flat shape with respect to the rotation direction, the height of the side fence device during folding can surely be reduced, but the flat support members are in the longitudinal direction, that is, Although it has sufficient strength against the force applied to the direction orthogonal to the rotation direction of the column member, it may be easily bent in that direction against external force applied in the rotation direction, that is, the flat direction. .

  Therefore, when a part of the body such as the user's head is pressed between the adjacent strut members, if at least one strut member is flat, the flat strut member is curved in the flat direction and is adjacent. There is a possibility that the interval between the pair of support members may increase, or the support members may be deformed.

  This invention can relatively reduce the height of the side fence device when folded even if the interval between adjacent support members is reduced, and the support member does not deform even when an external force is applied to the support member. An object of the present invention is to provide a side fence device that can be provided with strength.

This invention is a bed side fence device provided on the side in the width direction of the bed body so as to be able to fall down in the longitudinal direction intersecting the width direction,
A lower transverse member provided along the longitudinal direction on the side of the bed body in the width direction;
A plurality of support members whose lower ends are rotatably connected to the lower horizontal member at predetermined intervals,
An upper lateral member rotatably connected to the upper ends of the plurality of support members;
When the support member is erected, the support members are held in a non-rotatable manner with respect to the upper horizontal member, and the holding state of the support member is released by the operation so that the support member can fall in the turning direction. With a stopper mechanism,
The strut members have a triangular cross section, and adjacent strut members are arranged in a row so that each side faces each other in parallel and the center of the cross section is located on the same straight line with respect to the rotation direction. It is in the side fence apparatus for beds characterized by being characterized.

This invention is a bed side fence device provided on the side in the width direction of the bed body so as to be able to fall down in the longitudinal direction intersecting the width direction,
A lower transverse member provided along the longitudinal direction on the side of the bed body in the width direction;
A plurality of support members whose lower ends are rotatably connected to the lower horizontal member at predetermined intervals,
An upper lateral member rotatably connected to the upper ends of the plurality of support members;
When the support member is erected, the support members are held in a non-rotatable manner with respect to the upper horizontal member, and the holding state of the support member is released by the operation so that the support member can fall in the turning direction. With a stopper mechanism,
The strut member has a triangular cross section, and adjacent strut members are arranged so that each side faces each other in parallel and the center of the cross section is alternately shifted with respect to the direction intersecting the rotation direction. It is in the side fence apparatus for beds characterized by having.

This invention is a bed side fence device provided on the side in the width direction of the bed body so as to be able to fall down in the longitudinal direction intersecting the width direction,
A lower transverse member provided along the longitudinal direction on the side of the bed body in the width direction;
A plurality of support members whose lower ends are rotatably connected to the lower horizontal member at predetermined intervals,
An upper lateral member rotatably connected to the upper ends of the plurality of support members;
When the support member is erected, the support members are held in a non-rotatable manner with respect to the upper horizontal member, and the holding state of the support member is released by the operation so that the support member can fall in the turning direction. With a stopper mechanism,
The bed side fence, wherein the column members have a T-shaped cross section, and adjacent column members are arranged in a row at a predetermined interval in a direction opposite to the width direction of the bed body. In the device.

This invention is a bed side fence device provided on the side in the width direction of the bed body so as to be able to fall down in the longitudinal direction intersecting the width direction,
A lower transverse member provided along the longitudinal direction on the side of the bed body in the width direction;
A plurality of support members whose lower ends are rotatably connected to the lower horizontal member at predetermined intervals,
An upper lateral member rotatably connected to the upper ends of the plurality of support members;
When the support member is erected, the support members are held in a non-rotatable manner with respect to the upper horizontal member, and the holding state of the support member is released by the operation so that the support member can fall in the turning direction. With a stopper mechanism,
The column member has a trapezoidal shape with a pair of side sides inclined in the opposite direction at the same angle. Adjacent column members face each side in parallel and the center of the cross-section is the rotation. The bed side fence apparatus is arranged in a line so as to be positioned on the same straight line with respect to the moving direction.

This invention is a bed side fence device provided on the side in the width direction of the bed body so as to be able to fall down in the longitudinal direction intersecting the width direction,
A lower transverse member provided along the longitudinal direction on the side of the bed body in the width direction;
A plurality of support members whose lower ends are rotatably connected to the lower horizontal member at predetermined intervals,
An upper lateral member rotatably connected to the upper ends of the plurality of support members;
When the support member is erected, the support members are held in a non-rotatable manner with respect to the upper horizontal member, and the holding state of the support member is released by the operation so that the support member can fall in the turning direction. With a stopper mechanism,
The strut member has a first strut member having a circular cross section and a second strut member having a cross section longer than the length in the direction intersecting the rotational direction. The first strut member and the second strut member are alternately arranged along the longitudinal direction of the bed main body, and the first strut member has its cross-sectional center in the rotation direction. The second column members are arranged in a row so as to be positioned on the same straight line, and the second column members are arranged in a row by shifting the center of the cross section in the direction intersecting the rotation direction with respect to the center of the first column member. It is in the side fence apparatus for beds characterized by being characterized.

  According to this invention, even if the interval between the support members is narrowed, the height dimension at the time of folding can be lowered, and the support member is subjected to external force by being pressed by the user's body or the like. However, it is possible to provide strength that is difficult to deform.

The front view which shows a part of bed apparatus provided with the side fence apparatus which shows 1st Embodiment of this invention. The top view of the side fence apparatus shown in FIG. The side view of the side fence apparatus shown in FIG. Sectional drawing of a support | pillar member when a side fence apparatus stands. Sectional drawing of a support | pillar member when a side fence apparatus is folded. Sectional drawing of a support | pillar member when the side fence apparatus which shows 2nd Embodiment of this invention is folded. Sectional drawing of a support | pillar member when the side fence apparatus which shows 2nd Embodiment of this invention is folded. Sectional drawing of a support | pillar member when the side fence apparatus which shows 3rd Embodiment of this invention is folded. Sectional drawing of a support | pillar member when the side fence apparatus which shows 4th Embodiment of this invention is folded. Sectional drawing of a support | pillar member when the side fence apparatus which shows 5th Embodiment of this invention is folded. Sectional drawing of a support | pillar member when the side fence apparatus which shows 6th Embodiment of this invention is folded. Sectional drawing of a support | pillar member when the side fence apparatus which shows 7th Embodiment of this invention is folded. Sectional drawing of a support | pillar member when the side fence apparatus which shows 8th Embodiment of this invention is folded. Sectional drawing of a support | pillar member when the side fence apparatus which shows 9th Embodiment of this invention is folded. Sectional drawing of a support | pillar member when the side fence apparatus which shows 10th Embodiment of this invention is folded.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
1 to 5 show a first embodiment of the present invention. FIG. 1 is a front view showing one end portion in the longitudinal direction of a bed main body 1 constituting the bed apparatus. The bed body 1 is composed of a floor portion 2 supported at a predetermined height by a leg (not shown), and board bodies 3 (only one is shown) erected on both ends in the longitudinal direction of the floor portion 2. ing.

  A side fence device 4 is provided on the side of the bed 2 in the width direction of the floor 2. The side fence device 4 has a lower lateral member 6 that is detachably attached to the upper surface of the end portion in the width direction of the floor portion 2.

  The lower horizontal member 6 has a length shorter than half of the length of the floor portion 2, and a plurality of, in this embodiment, five strut members 7 are provided on the outer side surface at predetermined intervals. Are rotatably connected. The space | interval of the some support | pillar member 7 is set to the dimension in which a user's body head does not enter, for example, 120 mm or less.

  The upper end of the column member 7 is rotatably connected to the upper lateral member 9. A case 12 constituting a stopper mechanism 11 to be described later is attached to one end portion of the upper lateral member 9 located on the board body 3 side, and one end side of the upper lateral member 9 among the plurality of support members 7. The one column member 7 located on the board body 3 side is pivotally attached to the upper horizontal member 9 via the case 12.

  In the case 12 of the stopper mechanism 11, a stopper (both not shown) is engaged with an engaging portion provided at the upper end of the column member 7 when the column member 7 is rotated in the standing direction. ) Is provided. As a result, the support member 7 can be held in a state where it cannot stand upright in a state in which the support member 7 stands substantially vertically.

  A release button 13 shown in FIG. 2 is provided on the upper surface of the case 12. When the release button 13 is pressed while the support member 7 stands substantially vertically, the stopper (not shown) is released from the engaging portion, and the support member 7 is rotated in the direction indicated by the arrow in FIG. The upper lateral member 9 can be laid down. That is, the side fence apparatus 4 can be folded as shown by a chain line in FIG.

  As shown in FIGS. 4 and 5, the column member 7 has a cylindrical shape with a regular cross section, and three corners are formed in the rounded portion, and each of the adjacent column members 7 has a side a. Are different from each other by 180 degrees with respect to the width direction of the bed main body 1 so as to face each other in parallel.

  Furthermore, each column member 7 is positioned in a line on the same straight line L with respect to the rotation direction when the column member 7 is raised and lowered, with the center (center of gravity) O of each cross section being the longitudinal direction of the bed body 1. Arranged to do. That is, each column member 7 is pivotally attached to the lower lateral member 6 and the upper lateral member 9 at the lower end and the upper end, respectively.

  The column member 7 is formed by drawing a metal such as aluminum, but is not formed of a metal such as aluminum, but is formed by a resin in which a reinforcing core such as a reinforced resin reinforced with carbon fiber or a metal is inserted. It may be.

  FIG. 4 is a cross-sectional view of the plurality of support members 7 when the side fence device 4 is standing up, and FIG. 5 is a cross-section in a state where the plurality of support members 7 overlap when the side fence device 4 is laid down. FIG.

  Since the cross-section of the support member 7 is an equilateral triangle, even if it has a relatively small outer diameter, a large second moment of section can be obtained. Therefore, when the side fence device 4 stands up, even if an external force is applied to the support column member 7 by the user, the cross-sectional shape of the support column member 7 is longer in the longitudinal direction of the bed body 1 than when the cross-sectional shape is flat. There is a strength that is difficult to be deformed in the width direction of the bed main body 1 perpendicular to the rotation direction of the column member 7 and the rotation direction.

  That is, the support member 7 can be provided with a strength that is difficult to be deformed in the longitudinal direction and the width direction of the bed body 1 by an external force applied by the user, so that the space between the adjacent support members 7 is widened by the deformation. Thus, it is possible to prevent the user's body, for example, the head from entering.

  The plurality of support members 7 have a triangular cross section, and the adjacent support members 7 are arranged in a row in opposite directions so that one side a faces in parallel. Therefore, as shown in FIG. 5, when the support member 7 is laid down, the interval indicated by D of the adjacent support members 7 can be made smaller than when the adjacent support members 7 are arranged in the same direction.

  Therefore, even if the supporting member 7 has the required strength, it can be made to have a relatively small outer diameter, and adjacent ones of the supporting members 7 face each other in parallel. By arranging the column members 7 in the reverse direction, the interval D between the column members 7 adjacent when the side fence device 4 is folded can be made smaller than when arranged in the same direction.

  Thereby, when the side fence device 4 is laid down, the height dimension of the side fence device 4 indicated by H in FIG. 1 can be reduced, so that the side fence device 4 when the user gets on the bed device. Can be difficult to get in the way.

(Second Embodiment)
FIG. 6 is a sectional view of the column member 7A when the side fence device 4 is folded, showing a second embodiment of the present invention. This second embodiment is a modification of the first embodiment, and the cross-sectional shape of the support member 7A is a triangular shape with corners formed in rounded portions, as in the first embodiment. Are not equilateral triangles but are isosceles triangles.

  Even if the cross-sectional shape of the support member 7A is an isosceles triangle, it can be provided with a strength that is difficult to be deformed by an external force applied by a user or the like as in the first embodiment, and the height shown in FIG. The dimension H can be lowered.

(Third embodiment)
FIG. 7 is a cross-sectional view of the column member 7A when the side fence device 4 is folded, showing a third embodiment of the present invention. The third embodiment is a modification of the second embodiment, and the support member 7A has a cross-sectional shape and is an equilateral triangle with corners formed in rounded portions, and adjacent support members 7A are By changing the orientation by 180 degrees, each side a is made to face in parallel.

  Further, the adjacent strut members 7 </ b> A are arranged by alternately shifting the center O of the cross section with respect to the direction orthogonal to the rotation direction of the strut member 7. That is, of the five support members 7A, the three support members 7A are arranged in a row so that the center O is positioned on the straight line L1, and the remaining two support members 7A have a center O that is more bed than the straight line L1. The main body 1 is arranged in a row so as to be positioned on a straight line L2 positioned outward in the width direction.

  Even with such a configuration, it is possible to obtain the same operational effects as those of the first and second embodiments.

  In the third embodiment, the support member 7A may be an isosceles triangle instead of an equilateral triangle.

In the first to third embodiments, of the three corners of the support member 7, the corners located on the inner side and the outer side in the width direction of the bed main body 1 that are easy to touch the user's body. The rounded portion may be larger than the rounded portions of the other two corners. By doing so, when a user's body touches, a soft touch can be given to the user.

(Fourth embodiment)
FIG. 8 is a cross-sectional view of the column member 7B when the side fence device 4 is folded, showing a fourth embodiment of the present invention. The column member 7B of the fifth embodiment is formed by drawing a metal such as aluminum so that the cross-sectional shape is T-shaped and the corners are rounded, and the plurality of column members 7B have a cross-section. The column members 7B adjacent to each other are arranged in a line such that their center O is positioned on a straight line L along the longitudinal direction of the bed body 1, and the column members 7B adjacent to each other are arranged 180 degrees around the straight line L.

  According to such a configuration, since the cross-sectional shape of the support member 7B is T-shaped, even if the outer diameter dimension is relatively small, a large second moment of section can be obtained. It is possible to provide strength that is difficult to deform.

  In addition, since the strut members 7B can be made to have a relatively small outer diameter, and the adjacent strut members 7B are arranged by changing the direction by 180 degrees, the interval D between the adjacent strut members 7B is set to be adjacent strut members 7C. Therefore, the height dimension H shown in FIG. 1 when the side fence device 4 is laid down can be reduced.

(Fifth embodiment)
FIG. 9 is a cross-sectional view of the column member 7C when the side fence device 4 is folded, showing a fifth embodiment of the present invention. The column member 7C of the fifth embodiment is formed by drawing with a metal such as aluminum so that the cross-sectional shape is trapezoidal and the corners are rounded. That is, the trapezoidal column member 7 </ b> C is formed in a shape in which a pair of opposing sides a is inclined at the same angle in the opposite direction.

  The plurality of support members 7C are arranged in a line so that the center O is positioned on the straight line L along the longitudinal direction of the bed body 1, and the adjacent support members 7B are turned 180 degrees around the straight line L. By arrange | positioning, the side a is made to oppose in parallel.

  According to such a configuration, since the cross-sectional shape of the column member 7C is trapezoidal, it is deformed with respect to the longitudinal direction and the width direction of the bed main body 1 even with a small outer diameter, as in the triangular shape. It is possible to provide a difficult strength, that is, a relatively large moment of inertia of the cross section.

  Moreover, the adjacent strut members 7C are arranged in a line with the center O positioned on the straight line L, and the orientation is changed by 180 degrees around the straight line L.

  Therefore, even if the interval between the plurality of column members 7C in the standing state is relatively small so that the user's head does not enter, the interval d between the side edges a of the adjacent column members 7C at the time of lying down is the same direction. Therefore, the overall high dimension H can also be reduced.

(Sixth to eleventh embodiments)
FIG. 10 is a cross-sectional view of the column member when the side fence device 4 is folded, showing a sixth embodiment of the present invention. The side fence apparatus 4 of this 6th Embodiment is comprised by 7 D of 1st support | pillar members and the 2nd support | pillar member 7d. The first support column member 7D has a cylindrical shape with a circular cross section, and the second support column member 7d has a cylindrical shape with an elliptical cross section.

  The plurality of first strut members 7D are arranged in a row at predetermined intervals along the rotation direction of the first strut member 7D, the center O being the longitudinal direction of the bed body 1, and on the same first straight line L1. Is located.

  The plurality of second support members 7d are arranged with the longitudinal direction of the cross section along the rotational direction, and the center O is shifted outward in the width direction of the bed body 1 with respect to the first straight line L1, In addition, the second column member 7d is arranged so as to be positioned on the second straight line L2 parallel to the first straight line L1 so that a part of the second column member 7d in the short direction enters between the first column members 7c.

  FIG. 11: is sectional drawing of the support | pillar member when the side fence apparatus 4 is folded, showing the 7th Embodiment of this invention. The side fence apparatus 4 of this 7th Embodiment is a modification of 6th Embodiment. In the seventh embodiment, as in the sixth embodiment, the first support column member 7D has a cylindrical cross section, but the second support column member 7e has a bowl shape in cross section. The second column member 7e is different in that the longitudinal direction of the cross section is along the rotation direction, and the arc surface b is arranged inward in the width direction of the bed main body 1.

  The second column member 7e is arranged with the center O positioned on the second straight line L2 so as to enter between the adjacent first column members 7D.

  FIG. 12 is a sectional view of the support member when the side fence device 4 is folded, showing an eighth embodiment of the present invention. The side fence device 4 according to the eighth embodiment is a modification of the sixth embodiment, and is different in that the cross-sectional shape of the second column member 7f is an isosceles triangle. The column member 7f is arranged so that its longitudinal direction is along the rotational direction, and one apex c is directed inward in the width direction of the bed body 1 and enters between the adjacent first column members 7D.

  FIG. 13: is sectional drawing of the support | pillar member when the side fence apparatus 4 is folded, showing the 9th Embodiment of this invention. The side fence device 4 according to the ninth embodiment is a modification of the sixth embodiment, and the cross-sectional shape of the second column member 7g is a polygonal (hexagonal) shape similar to a bowl shape. The second column member 7g has a longitudinal direction along the rotational direction, and the shorter one of the two parallel sides is directed inward in the width direction of the bed body 1, And it arrange | positions so that it may enter between the 1st support | pillar members 7D which adjoin.

  FIG. 14 is a sectional view of a support member when the side fence device 4 is folded, showing a tenth embodiment of the present invention. The side fence device 4 of the ninth embodiment is a modification of the sixth embodiment, and the cross-sectional shape of the second column member 7h is a circle having a smaller diameter than the first column member 7D. The second column member 7h is different in that it is arranged such that a part of the second column member 7h enters between the adjacent first column members 7D.

  FIG. 15 is a sectional view of a support member when the side fence device 4 is folded, showing an eleventh embodiment of the present invention. The side fence device 4 of the ninth embodiment is a modification of the tenth embodiment, and the cross-sectional shape of the second support member 7i is smaller than that of the first support member 7D, and the tenth structure. The second column member 7i is different from the second column member 7h in the embodiment in that the second column member 7i has a center O that is the same as the center O of the first column member 7D. It arrange | positions so that it may enter between 1st support | pillar members 7D which adjoin so that it may be located above.

  Also in the sixth to eleventh embodiments described above, as in the other embodiments, the first strut member 7D and the second support members 7d-7i have a relatively small outer diameter in order to obtain the required strength. Since it can be set as a dimension, while being able to obtain the intensity | strength which is hard to deform | transform with external force, the height H when the side fence apparatus 4 is folded may be made low.

  DESCRIPTION OF SYMBOLS 1 ... Bed main body, 4 ... Side fence apparatus, 6 ... Lower horizontal member, 7, 7A-7D, 7d-7i ... Strut member, 9 ... Upper horizontal member, 11 ... Stopper mechanism.

Claims (6)

The bed side fence device provided on the side in the width direction of the bed body so as to be able to fall down in the longitudinal direction intersecting with the width direction,
A lower transverse member provided along the longitudinal direction on the side of the bed body in the width direction;
A plurality of support members whose lower ends are rotatably connected to the lower horizontal member at predetermined intervals,
An upper lateral member rotatably connected to the upper ends of the plurality of support members;
When the support member is erected, the support members are held in a non-rotatable manner with respect to the upper horizontal member, and the holding state of the support member is released by the operation so that the support member can fall in the turning direction. With a stopper mechanism,
The strut members have a triangular cross section, and adjacent strut members are arranged in a row so that each side faces each other in parallel and the center of the cross section is located on the same straight line with respect to the rotation direction. The bed side fence apparatus characterized by the above-mentioned. The bed side fence device provided on the side in the width direction of the bed body so as to be able to fall down in the longitudinal direction intersecting with the width direction,
A lower transverse member provided along the longitudinal direction on the side of the bed body in the width direction;
A plurality of support members whose lower ends are rotatably connected to the lower horizontal member at predetermined intervals,
An upper lateral member rotatably connected to the upper ends of the plurality of support members;
When the support member is erected, the support members are held in a non-rotatable manner with respect to the upper horizontal member, and the holding state of the support member is released by the operation so that the support member can fall in the turning direction. With a stopper mechanism,
The strut member has a triangular cross section, and adjacent strut members are arranged so that each side faces each other in parallel and the center of the cross section is alternately shifted with respect to the direction intersecting the rotation direction. The bed side fence apparatus characterized by having.   The bed side fence apparatus according to claim 1 or 2, wherein a cross-sectional shape of the support member is an equilateral triangle or an isosceles triangle. The bed side fence device provided on the side in the width direction of the bed body so as to be able to fall down in the longitudinal direction intersecting with the width direction,
A lower transverse member provided along the longitudinal direction on the side of the bed body in the width direction;
A plurality of support members whose lower ends are rotatably connected to the lower horizontal member at predetermined intervals,
An upper lateral member rotatably connected to the upper ends of the plurality of support members;
When the support member is erected, the support members are held in a non-rotatable manner with respect to the upper horizontal member, and the holding state of the support member is released by the operation so that the support member can fall in the turning direction. With a stopper mechanism,
The bed side fence, wherein the column members have a T-shaped cross section, and adjacent column members are arranged in a row at a predetermined interval in a direction opposite to the width direction of the bed body. apparatus. The bed side fence device provided on the side in the width direction of the bed body so as to be able to fall down in the longitudinal direction intersecting with the width direction,
A lower transverse member provided along the longitudinal direction on the side of the bed body in the width direction;
A plurality of support members whose lower ends are rotatably connected to the lower horizontal member at predetermined intervals,
An upper lateral member rotatably connected to the upper ends of the plurality of support members;
When the support member is erected, the support members are held in a non-rotatable manner with respect to the upper horizontal member, and the holding state of the support member is released by the operation so that the support member can fall in the turning direction. With a stopper mechanism,
The column member has a trapezoidal shape with a pair of side sides inclined in the opposite direction at the same angle. Adjacent column members face each side in parallel and the center of the cross-section is the rotation. The bed side fence apparatus, wherein the bed side fence apparatus is arranged in a line so as to be positioned on the same straight line with respect to the moving direction. The bed side fence device provided on the side in the width direction of the bed body so as to be able to fall down in the longitudinal direction intersecting with the width direction,
A lower transverse member provided along the longitudinal direction on the side of the bed body in the width direction;
A plurality of support members whose lower ends are rotatably connected to the lower horizontal member at predetermined intervals,
An upper lateral member rotatably connected to the upper ends of the plurality of support members;
When the support member is erected, the support members are held in a non-rotatable manner with respect to the upper horizontal member, and the holding state of the support member is released by the operation so that the support member can fall in the turning direction. With a stopper mechanism,
The strut member has a first strut member having a circular cross section and a second strut member having a cross section longer than the length in the direction intersecting the rotational direction. The first strut member and the second strut member are alternately arranged along the longitudinal direction of the bed main body, and the first strut member has its cross-sectional center in the rotation direction. The second column members are arranged in a row so as to be positioned on the same straight line, and the second column members are arranged in a row by shifting the center of the cross section in the direction intersecting the rotation direction with respect to the center of the first column member. The bed side fence apparatus characterized by the above-mentioned.

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