JP4771533B2 - Side fence support mechanism on the supine stand - Google Patents

Description

The present invention relates to a support mechanism for a side fence in a patient transport stretcher used in hospitals, other medical facilities, nursing care facilities, and the like, and a supine table such as an examination table.

  In a supine table such as a patient transport stretcher or an examination table, a side fence corresponding to the longitudinal direction of the bottom is provided on the side to prevent the patient from falling on the bottom. The side fence is configured to support the side fence main body so as to be rotatable between a standing state and a suspended state, as shown in Patent Documents 1 and 2, for example, so as not to disturb the patient when getting on and off. That is, in such a side fence, in order to prevent the patient from falling, the side fence main body is turned upright to be in an upright state, and supported in this state by a stopper mechanism having various configurations, and the patient can get on and off. In this case, the stopper mechanism is released, and the side fence body is pivoted and lowered to a suspended state. Further, in Patent Documents 1 and 2, by allowing the side fence body to be supported even in a horizontal state, the side fence body can be used as an upper limb base on which the upper limb is placed during infusion or treatment such as infusion. I have to.

  In addition, as an example of a stopper mechanism for supporting the side fence body in an upright state, the side fence body is supported so as to be movable in the longitudinal direction of the bottom, and a stopper member is provided on one end side thereof, and one end portion of the side fence body is provided. There is a configuration in which a convex portion is provided on the stopper member and a concave portion is provided on the stopper member, and the side rail body is urged by a spring toward the stopper member by a spring.

In this configuration, when the side fence body in the standing state moves toward the stopper member due to the bias of the spring, the convex part at one end of the side fence body fits into the concave part of the stopper member, so the side fence body is in the standing state. Can be supported. In addition, when the side fence body supported in the standing state is moved in the direction away from the stopper member, the fitting of the convex part and the concave part is released, so the side fence main body is rotated downward to be in a suspended state. be able to.
JP-A-4-341264 JP 11-192263 A

In the stopper mechanism described above, the concave / convex fitting is maintained only by the urging of the spring, so that when the patient tries to move the side rail body or is gripped unexpectedly, if the side rail body moves, the fitting will occur. In this case, the side fence body is pivoted and lowered, which is dangerous.
Therefore, in the present invention, in the side fence support mechanism in which the standing state of the side fence main body is maintained by the bias of the spring, the above-described danger is eliminated by rationally combining the safety mechanism, and the safety is improved. The purpose is to increase

In order to solve the above-described problems, in the present invention, the support bar body is supported on the side part of the supine table corresponding to the longitudinal direction of the bottom, and the support bar body is inserted into the insertion part provided on the side fence body. The first and second stopper members are provided on one end side and the other end side of the support bar body, respectively, and the side fence body can be moved between the first and second stopper members along the support bar body. It is possible to turn between the standing state and the suspended state, and the side rail body is formed with an uneven portion on the one end portion of the side rail body and the first stopper member that can be fitted to each other in the standing state. In the other end portion of the side fence body, an engagement member that can be rotated in the vertical direction when the side fence body is in the upright state is provided on the other end of the side fence body. The engaging member is provided on the stopper side, and the side fence body is in an upright state, and In a state where the convex portions are fitted, it rotates downward by its own weight, and characterized in that the tip is configured to be brought into contact with the upper surface of the support rod in close proximity to the second stopper This paper proposes a support mechanism for side fences on the supine stand.

Further, in the present invention, the support bar is supported on the side of the supine table corresponding to the longitudinal direction of the bottom, and the support bar is inserted into the insertion portion provided in the side fence body, First and second stopper members are provided on the other end sides, respectively, so that the side fence body can be moved along the support bar between the first and second stopper members and between the standing state and the suspended state. The side rail main body is formed in the one end portion of the side fence body and the first stopper member with an uneven portion that can be fitted to each other in the standing state, and the side fence main body is directed toward the first stopper member. It is configured to be biased by a spring, and a stopper pin is disposed outside the second stopper member at the other end portion of the side fence body, and is supported so as to be able to advance and retract with respect to the second stopper member. In addition, the second stopper is urged by a spring in the forward direction. The wood, the side fence body standing state, and the support mechanism of the side fence in supine stand stopper pin in a state in which the concave-convex portion is fitted is characterized by providing an engaging portion at a position forward Propose.

In the present invention, the concavo-convex portion is configured to be able to be fitted in a horizontal state in addition to the case where the side fence main body is in a standing state, and the engaging portion is configured such that the side fence main body is in a horizontal state and It is proposed that the stopper pin is also provided at a position where the stopper pin advances in the engaged state .

In the first aspect of the present invention, when the side rail main body is in the standing state and the one-end portion of the side rail main body is engaged with the uneven portion formed on the first stopper member, the engaging member is self-weighted. , And the tip is in contact with the upper surface of the support bar close to the second stopper, so that the side fence body is moved toward the second stopper member. However, since the engaging member is raised by the second stopper member, it cannot be moved.

  For this reason, since the fitting state of the concavo-convex part is maintained, the side rail main body is maintained in an upright state, and even when a patient or the like tries to move the side rail main body or grasps it unexpectedly, the concavo-convex part is fitted. It is possible to prevent the occurrence of inconvenience that the side rail main body is pivoted and lowered due to the release of the match.

  When descending the side fence body supported in the standing state when the patient gets on and off, etc., by moving the side fence body in the direction of the second stopper member while rotating the engagement member by hand, It is possible to release the above-described fitting of the concavo-convex portion, and thus the side fence body can be pivoted down and brought into a suspended state.

Next, in the invention according to claim 2 , when the side fence main body is in the standing state and the one end portion of the side fence main body is engaged with the uneven portion formed in the first stopper member, the side fence main body is The stopper pin provided at the other end of the front end moves forward in the direction of the second stopper member by the bias of the spring and engages with the engaging portion. Therefore, the side fence body is moved in the direction of the second stopper member. Even if it tries, it cannot move.

  For this reason, since the fitting state of the concavo-convex part is maintained, the side rail main body is maintained in an upright state, and even when a patient or the like tries to move the side rail main body or grasps it unexpectedly, the concavo-convex part is fitted. It is possible to prevent the occurrence of inconvenience that the side rail main body is pivoted and lowered due to the release of the match.

  In the present invention, the side rail body is prevented from moving in the rotational direction by fitting the concave and convex portions, and the stopper pin engaged with the engaging portion also contributes to the prevention of movement in the rotational direction. The strength to prevent the rotation is great and the safety is high.

  When lowering the side fence body supported in an upright state when the patient gets on and off, etc., operate the stopper pin by hand to retract it from the engagement part, By moving in the direction of the stopper member 2, it is possible to release the above-described fitting of the concavo-convex portion, and thus the side fence body can be pivoted down and brought into a suspended state.

In the invention according to claim 3 , when the side rail main body is in a horizontal state, the stopper pin moves forward in the direction of the second stopper member by the urging force of the spring and engages with the engaging portion provided at that position. Therefore, the side fence main body is supported even in a horizontal state, and therefore, the horizontal side fence main body can be used as an upper limb base on which an upper limb is placed during infusion or treatment such as drip.

  At this time, even when the side fence main body is in a horizontal state, when the one end of the side fence main body and the uneven portion formed on the first stopper member are fitted to each other, the side fence main body has one end thereof. Since the movement in the rotation direction is prevented by the concave and convex portion fitted with the stopper pin engaged with the engagement portion at the other end portion, the movement in the rotation direction is prevented. Is firmly supported even in a horizontal state, and therefore, the side rail main body in the horizontal state can be safely used as an upper limb base on which the upper limb is placed during infusion such as infusion or treatment.

Next, an embodiment of the present invention when a patient transport stretcher is applied as a supine table according to the present invention will be described with reference to the accompanying drawings.
First, FIG. 1 to FIG. 7 show the entire structure of the patient transport stretcher and the respective parts before the safety mechanism is incorporated into the side fence support mechanism according to the present invention.
That is, the patient transport stretcher 1 is generally configured such that the bottom support frame 3 is supported on the upper side of the carriage 2 via an appropriate lifting mechanism, and the bottom 4 is supported on the bottom support frame 2.

  A support bar 5 is supported on the side of the bottom support frame 2 so as to correspond to the longitudinal direction of the bottom 4. Reference numeral 6 denotes a side fence main body, and the side fence main body 6 is formed with a fitting insertion portion 7 into which the support rod body 5 is fitted on the lower side in the standing state. In this configuration, the support bar 5 is inserted and supported in the insertion portion 7 of the side fence body 6, and the first and second stopper members 8 a are respectively provided on one end side 5 a and the other end side 5 b of the support bar 5. , 8b. In this embodiment, the first and second stopper members 8 a and 8 b also serve as a fixing member for fixing the support bar 5 to the bottom support frame 3, and the attachment member 9 to the bottom support frame 3 is used. Provided. The first and second stopper members 8a and 8b are provided with an insertion support portion 10 for inserting and supporting a pole (not shown) used for drip etc., and the insertion support portion 10 is provided with a pole. A fastening screw 11 for fixing is provided.

  The distance between the first and second stopper members 8a and 8b is larger than the left and right width of the side fence body 6, so that the side fence body 6 is between the first and second stopper members 8a and 8b. It can move along the support bar 5 and is supported so as to be rotatable around the support bar 1 between the standing state and the suspended state.

  The one end portion 6a of the side fence body 6 and the first stopper member 8a are provided with an uneven portion that can be fitted to each other in the standing state, in this case, the concave portion 12 on the first stopper member 8a side. The convex part 13 of the one end part 6a of the side fence main body 6 is formed, and the side fence main body 6 is urged | biased by the spring 14 toward the 1st stopper member 8a direction. In this embodiment, the spring 14 is provided as a compression coil spring provided between the other end 6b of the side fence body 6 and the second stopper member 8, but the side fence body 6 is provided as the first stopper member 8a. As long as it is biased in the direction, the type of spring 14 and its installation position are appropriate. Further, the concavo-convex portion may be formed with a convex portion on the first stopper member 8 a side and a concave portion on the one end portion 6 a of the side fence body 6, contrary to the above configuration. Further, as will be described later, the concavo-convex portion can be configured so that the side fence body 6 is fitted even in a horizontal state.

  In the above configuration, when the side fence main body 6 is raised from another state, the concave portion 12 on the first stopper member 8a side and the convex portion 13 of the one end portion 6a of the side fence main body 6 are aligned with each other. The fence main body 6 moves to the first stopper member 8a side by the bias of the spring 14, and the concave portion 12 and the convex portion 13 are fitted. For this reason, the side fence main body 6 is prevented from moving in the rotational direction and is maintained in the standing state.

  In the above state, when the side fence body 6 is moved away from the first stopper member 8 a side against the bias of the spring 14, the fitting of the concave portion 12 and the convex portion 13 is released, and the side fence main body 6 is released. Since it can turn around the support bar 5, it can be lowered to a suspended state when not in use.

  Here, in the first stopper member 8a, as the concave portion into which the convex portion 13 provided on the one end portion 6a of the side fence main body 6 is fitted, the side rail main body 6 is in the side corresponding to the standing state in addition to the concave portion 12 at the side. If the main body 6 is added with the concave portion 15 at a position corresponding to the horizontal state, the concave portion 15 and the convex portion 13 are fitted even when the side main body 6 is in the horizontal state. For this reason, the side fence main body 6 is prevented from moving in the rotating direction and is maintained in a horizontal state. In this state, the side fence main body 6 is used as an upper limb base on which the upper limb is placed during infusion or treatment such as drip. Available.

  In the stopper mechanism of the side fence body 6 described above, the fitting of the concave and convex portions 12, 13, 15 is maintained only by the urging of the spring 14, so that a patient or the like tries to move the side fence body 6 or unexpectedly If the side fence main body 6 moves when it is gripped, the fitting may be released. In this case, the side fence main body 6 is rotated and lowered, which is dangerous.

  Therefore, in the present invention, safety can be greatly improved by incorporating a safety mechanism as described below.

9 to 12 show a first embodiment of the safety mechanism.
That is, in the first embodiment, the other end portion 6b of the side fence body 6 is provided with the engaging member 16 so as to be rotatable in the vertical direction, and the engaging member 16 is moved in the engaging direction by its own weight. It is supposed to be energized. In addition, since components other than the engaging member 16 are the same as those shown in FIGS. 1 to 7, the corresponding components are denoted by the same reference numerals in the drawings, and redundant description is omitted.

  In the above configuration, when the side rail main body 6 is in the standing state, as described above, the one end portion 6a of the side rail main body 6 and the uneven portions 12 and 13 formed on the first stopper member 8a are fitted. Since the engaging member 16 is rotated and lowered by the force of gravity and is in contact with the upper surface of the support bar 5, the side fence body 6 is moved in the direction of the second stopper member 8b, that is, in the first position. Even if it is attempted to move in a direction away from the first stopper member 8a, the engaging member 16 moves up to the tip of the second stopper member 8b as shown in FIGS.

  For this reason, since the fitting state of the said uneven | corrugated | grooved parts 12 and 13 is maintained, the side fence main body 6 is maintained in the standing state, and when a patient etc. tries to move the side fence main body 6 or is caught unexpectedly. It is possible to prevent the inconvenience that the fitting of the concave and convex portions 12 and 13 is released and the side fence body 6 is rotated and lowered.

  When lowering the side fence body 6 supported in an upright state when the patient gets on and off the bottom 4, the side fence body 16 is moved to the second side while the engagement member 16 is rotated and raised by hand. By moving in the direction of the stopper member 8b, it is possible to release the fitting of the uneven portions 12 and 13 described above, and thus the side fence body 6 can be pivoted down and brought into a suspended state.

  Here, for example, when the structure shown in FIG. 8 is applied so that the side fence body 6 can be supported in a horizontal state, the engagement member 16 is moved in the direction of the support bar 5 by a spring (not shown). If the structure is urged, the engaging member 16 in the lateral orientation is also maintained in a position where it abuts against the support bar 5 by the urging force of the spring and is held at the tip of the second stopper member 8b. Even if the side fence main body 6 is moved in the direction of the second stopper member 8b, that is, in the direction away from the first stopper member 8a, the engaging member 16 cannot move by moving toward the tip of the second stopper member 8b. Therefore, the safety at the time of supporting the side fence main body 6 in a horizontal state is also improved.

Next, FIGS. 13 and 14 show a second embodiment of the safety mechanism.
That is, in the second embodiment, the stopper pin 17 is supported on the other end portion 6b of the side fence body 6 so as to be able to advance and retract relative to the second stopper member 8b, and is urged by the spring 18 in the forward direction. The second stopper member 8b has a configuration in which an engaging portion 19 is provided at a position where the stopper pin 17 advances when the side fence body 6 is in the standing state. In this embodiment, the other end portion of the stopper pin 17 is configured as a manual operation portion 21 for performing a backward operation. Since the constituent elements other than these constituent elements are the same as those shown in FIGS. 1 to 7, the corresponding constituent elements in the drawings are denoted by the same reference numerals, and redundant description is omitted.

  In the above configuration, when the side rail main body 6 is in the standing state, as described above, the one end portion 6a of the side rail main body 6 and the uneven portions 12 and 13 formed on the first stopper member 8a are fitted. Since the stopper pin 17 provided at the other end portion 6b of the side fence body 6 advances toward the second stopper member 8b by the bias of the spring 18 and engages with the engaging portion 19, the side fence Even if the main body 6 is moved along the support bar 5 in the direction of the second stopper member 8b, it cannot be moved.

  For this reason, since the fitting state of the said uneven | corrugated | grooved parts 12 and 13 is maintained, the side fence main body 6 is maintained in the standing state, and when a patient etc. tries to move the side fence main body 6 or is caught unexpectedly. It is possible to prevent the inconvenience that the fitting of the concave and convex portions 12 and 13 is released and the side fence body 6 is rotated and lowered.

In this embodiment, the side rail body 6 is prevented from moving in the rotational direction by fitting the concave and convex portions 12 and 13, and the stopper pin 17 engaged with the engaging portion 19 is also moved in the rotational direction. Therefore, the strength of preventing rotation is large, and the safety is higher.

  When lowering the side fence body 6 supported in an upright state when the patient gets on and off the bottom 4, the manual operation portion 21 is held and the stopper pin 17 is resisted against the bias of the spring 18. When retracted from the inside of the engaging portion 19, the side fence body 6 can move in the direction of the second stopper member 8b. Therefore, by moving the side fence body 16 in the direction of the second stopper member 8b, the uneven portion described above. 12 and 13 can be released, and thus the side fence body 6 can be pivoted and lowered to a suspended state when not in use.

  In the embodiment described above, the engaging portion 19 provided in the second stopper member 8b is formed as a hole, but it can also be formed as a recess opened on the one end portion 6a side of the side fence body 6.

Next, FIGS. 15 to 18 show a third embodiment of the safety mechanism.
In this embodiment, as shown in the figure, the engaging portion of the second stopper member 8b is provided in addition to the engaging portion 19 provided at the position where the stopper pin 17 advances when the side fence body 6 is in the standing state. In the horizontal state of the side fence body 6, the engaging portion 20 is also provided at the position where the stopper pin 17 advances, and the first stopper member 8 a is omitted in the drawing, but is shown in FIG. 8, for example. A thing is applied and it is comprised so that the side fence main body 6 can be supported in a horizontal state. Further, in this embodiment, unlike the embodiment shown in FIGS. 12 and 13, the engaging portion 19 has a bottomed configuration. However, as a matter of course, other embodiments may have a bottomless configuration. Since the constituent elements other than these constituent elements are the same as those shown in FIGS. 1 to 7, the corresponding constituent elements in the drawings are denoted by the same reference numerals, and redundant description is omitted.

  In this embodiment, as shown in FIG. 15, when the side fence body 6 is in the standing state, the stopper pin 17 provided on the other end portion 6 b of the side fence body 6 is engaged with the engagement portion 19. As described above, since the concave and convex portions 12 and 13 formed on the one end portion 6a of the side fence body 6 and the first stopper member 8a are fitted, the side fence body 6 cannot rotate, Since the movement along the support bar 5 is impossible due to the engagement between the stopper pin 17 and the engagement portion 19, the side fence body 6 is maintained in the standing state.

  Also in this embodiment, the side rail body 6 is prevented from moving in the rotational direction by fitting the concave and convex portions 12 and 13, and the stopper pin 17 engaged with the engaging portion 19 is also in the rotational direction. Since it contributes to the prevention of movement, the strength to prevent the rotation is large and the safety is higher.

  When the side fence body 6 is supported in the standing state, when the manual operation portion 21 is grasped and the stopper pin 17 is moved backward from the engagement portion 19 against the bias of the spring 18, the side fence body 6 is 2 can be moved in the direction of the stopper member 8b. Therefore, by moving the side fence body 16 in the direction of the second stopper member 8b, the above-described fitting of the uneven portions 12 and 13 can be released, and thus the side fence. The main body 6 can be rotated and lowered.

  In this embodiment, the side fence body 6 is pivoted and lowered from the standing state to reach a horizontal state, and in this state, when the side fence body 6 is moved in the direction of the first stopper member 8a by the bias of the spring 14, When the convex portion 13 of the one end portion 6a of the side fence body 6 is fitted into the concave portion 15 of the first stopper member 8a, the side fence body 6 cannot be rotated around the support rod body 5, and in this state, 16, since the stopper pin 17 engages with the engaging portion 20 and the side rail body 6 cannot move along the support bar 5, the side rail body 6 is maintained in an upright state. The

  Accordingly, the side fence body 6 is maintained in a horizontal state by preventing the movement in the rotation direction. In this state, the side fence body 6 can be safely used as an upper limb base on which the upper limb is placed during infusion or treatment such as drip. Available.

  Next, in order to lower the side fence body 6 to the suspended state, the manual operation portion 21 is gripped in the same manner as described above, and the stopper pin 17 is retracted from the engagement portion 20 against the bias of the spring 18. The main body 6 can be moved in the direction of the second stopper member 8b, and therefore, the fitting of the uneven portions 12 and 15 can be released by moving the side fence main body 6 in the direction of the second stopper member 8b. In this way, the side fence body 6 can be brought into a suspended state as indicated by 17 without being pivoted down.

  In the suspended state, the side fence body 6 does not need to be prevented from rotating by the fitting of the concavo-convex portions 12, 13 or 15, so when the side fence body 6 is to be placed in a horizontal state or a standing state, What is necessary is just to raise the side fence main body 6 as shown in FIG.

  That is, when the side fence main body 6 is rotated and moved up to reach a horizontal state, the side fence main body 6 is moved in the direction of the first stopper member 8a by the bias of the spring 14, whereby the uneven portions 12, 15 are moved. And the stopper pin 17 engages with the engaging portion 20 so that the side fence body 6 cannot be rotated and moved, and the side fence body 6 can be firmly supported in a horizontal state.

  By raising the side fence body 6 from the horizontal state to an upright state by the same operation as described above, the side fence body 6 cannot be turned and moved. 6 can be firmly supported in an upright state.

  Since the present invention is as described above, the side fence body of the side fence used for a patient transport stretcher used in hospitals, other medical facilities, nursing care facilities, etc. In the support mechanism of the side fence that is configured to be supported so as to be rotatable between the suspended states and the standing state of the side fence body is maintained by the bias of the spring, the patient or the like tries to move the side fence body, It is possible to prevent the occurrence of inconvenience that the side rail main body pivots and lowers due to the engagement of the concave and convex portions being released even when it is caught unexpectedly, which can greatly increase safety. it can.

  And in what maintains a side fence main body in a horizontal state, the side fence main body supported in the horizontal state can be safely utilized as an upper limbs table on which an upper limb is placed during infusion or treatment such as infusion.

It is a perspective view which shows the whole structure of the stretcher for patient conveyance before incorporating a safety mechanism in the support mechanism of the side fence which concerns on this invention. It is a perspective view which shows the whole structure of the patient transport stretcher before incorporating a safety mechanism in the support mechanism of the side fence which concerns on this invention as a side fence main body of one side hanging down. It is a front view which shows the whole structure of the side fence before incorporating a safety mechanism in the support mechanism of the side fence which concerns on this invention. It is a front view which shows the whole structure of the side fence before incorporating a safety mechanism in the support mechanism of the side fence which concerns on this invention in another situation. It is a perspective view which shows the structure of a 1st stopper member. It is a perspective view which shows the structure of the one end side of a side fence main body. It is a perspective view which shows the structure of the other end side of a side fence main body, and a 2nd stopper member. It is a perspective view which shows the other structure of a 1st stopper member. It is a perspective view which shows the state which incorporated the safety mechanism of 1st Example in the support mechanism of the side fence which concerns on this invention. It is a front view which shows the state which incorporated the safety mechanism of 1st Example in the support mechanism of the side fence which concerns on this invention. It is sectional drawing which shows the principal part of the safety mechanism of 1st Example. It is sectional drawing which shows the principal part of the safety mechanism of 1st Example in another situation. It is sectional drawing which shows the principal part of the safety mechanism of 2nd Example. It is sectional drawing which shows the principal part of the safety mechanism of 2nd Example in another situation. It is sectional drawing which shows the principal part of the safety mechanism of 3rd Example. It is sectional drawing which shows the principal part of the safety mechanism of 3rd Example in another situation. It is sectional drawing which shows the principal part of the safety mechanism of 3rd Example in another situation. It is sectional drawing which shows the principal part of the safety mechanism of 3rd Example in another situation.

Explanation of symbols

1 Patient transport stretcher
2 Dolly 3 Bottom support frame 4 Bottom 5 Support rod
5a one end side
5b other end side 6 side fence body
6a one end side
6b other end side 7 Insertion part 8a 1st stopper member 8b 2nd stopper member 9 Attachment member 10 Insertion support part 11 Clamping screw 12 Concave part 13 Convex part 14 Spring 15 Concave part 16 Engaging member 17 Stopper pin 18 Spring 19, 20 engaging portion 21 manual operation portion

Claims (3)

The support bar is supported on the side of the supine table in correspondence with the longitudinal direction of the bottom, and the support bar is inserted into the insertion portion provided on the side fence body, and the support bar is inserted into one end side and the other end side, respectively. First and second stopper members are provided, and the side fence body can be moved along the support bar between the first and second stopper members and can be rotated between the standing state and the suspended state, An uneven portion that can be fitted to each other in the standing state is formed on one end portion of the side fence body and the first stopper member, and the side fence body is urged by a spring toward the first stopper member. The other end of the side fence body is provided with an engagement member on the second stopper side, which is rotatable in the vertical direction when the side fence body is in an upright state. When the main body is upright and the concavo-convex part is fitted, Rotates downward, the leading edge, the second supporting mechanism of the side fence in supine stand, characterized in that is configured to be brought into contact with the upper surface of the support rod in close proximity to the stopper. The support bar is supported on the side of the supine table in correspondence with the longitudinal direction of the bottom, and the support bar is inserted into the insertion portion provided on the side fence body, and the support bar is inserted into one end side and the other end side, respectively. First and second stopper members are provided, and the side fence body can be moved along the support bar between the first and second stopper members and can be rotated between the standing state and the suspended state, An uneven portion that can be fitted to each other in the standing state is formed on one end portion of the side fence body and the first stopper member, and the side fence body is urged by a spring toward the first stopper member. configuration and then, also in the other end portion of the side fence body, by placing the stopper pin to the outside of the second stopper member, thereby movably supported relative to the second stopper member, in the advancing direction The second stopper member is energized with a spring, and the side fence There in a standing state, and the support mechanism of the side fence in supine stand stopper pin in a state in which the concave-convex portion is fitted is characterized by providing an engaging portion at a position forward. The concavo-convex part is configured to be able to be fitted in a horizontal state in addition to the case where the side fence main body is in a standing state, and the engaging part is a side rail main body in a horizontal state and the concavo-convex part is fitted therein. The support mechanism of the side fence in the supine stand according to claim 2 , wherein the stopper pin is also provided at a position where the stopper pin advances in the state .

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