JP5224450B2 - A mechanism for changing the support position of an attachment in a bed - Google Patents

Description

  The present invention supports attachments on a bed, for example, a board (headboard, footboard) attached to the end of the bed in the longitudinal direction, and accessories such as side rails and IV poles attached to the end of the bed in the width direction. The present invention relates to an attachment support position variable mechanism in a bed that can be applied to change of the bed length or floor width of the bed by making the position changeable.

  For example, if the bed length of a bed used by an elderly person or a sick person in a hospital or at home is short, the usability is poor, and if it is longer than necessary, the required space becomes large. Therefore, in addition to the standard floor length bed, the manufacturer can provide shorter or longer beds.

  Conventional methods for constructing beds with different floor lengths include a method of providing different bed frames for each floor length, a method of extending the floor length by retrofitting an extension frame on the head side or foot side of the bed, A method of allowing the frame on the foot side of the bed to be extended in a sliding manner has been performed.

  In addition, in patent document 1, the support stand which supports the bottom of a bed is comprised from a head support stand, a foot support stand, and an intermediate support stand, and the space | interval between them is comprised so that adjustment is possible, floor length is made. It is configured to be adjustable.

  In Patent Document 2, the bed frame is composed of a head frame and a foot frame, a telescopic side frame between them, and an inner and outer joint connected to the head side frame. The floor length can be adjusted by advancing and retracting the foot-side side frame with respect to the joint.

  And in the above beds, the support mechanism for attaching and supporting accessories, such as a side rail and IV pole, is provided in the side part. As this support mechanism, for example, as shown in Patent Document 3, a mechanism for attaching an accessory support member by providing an attachment hole in a longitudinal member of a bed frame that supports the bottom is often used.

  On the other hand, in the bed, two types of floor width, that is, bottom width, for example, 830 mm and 910 mm are often used.

  Even in the case of using bottoms having different floor widths, in order to attach accessories such as side rails to predetermined positions of the bed frame, conventionally, bed frames having different widths for each bottom having different widths. Is configured.

In addition, in Patent Document 4, the width of the bed frame is made to correspond to the floor width of the bottom only by changing the head frame and the foot frame without exchanging the middle frame.
JP 2004-298530 A JP 2005-204992 A JP 2000-166703 A JP-A-10-85081

In the above conventional techniques, there are the following problems concerning the floor length.
1. In the method of providing a different bed frame for each floor length, a bed frame corresponding to the type of floor length is required, which increases manufacturing costs and management costs.
2. In the method of retrofitting the extension frame, the size of the extension frame is relatively large, so that storage and mobility are poor.
3. In the method in which the frame can be extended in a sliding manner, the mechanical parts become large, leading to an increase in the number of parts and an increase in manufacturing costs.
4). In the method as shown in Patent Document 1, there is a restriction on the configuration of the bed, and in the method as shown in Patent Document 2, the bed frame must be disassembled when changing the floor length, which is troublesome. .

Moreover, in the above conventional technology, there are the following problems with respect to the floor width.
1. If different bed frames are configured for the bottoms having different widths so that the accessory can be attached to a predetermined position of the bed frame, the cost becomes high.
2. As in Patent Document 2, a part of the bed frame, that is, the inner frame is made common to different bottom widths, but since the part is made common, the cost reduction effect is relatively small. Is also troublesome.
The present invention aims to solve the above problems.

In order to solve the above-described problems, in the present invention, a groove-shaped support member is installed in a lateral direction on a bed frame that supports the bottom, and a support rod-like body that protrudes from an attachment support member is provided on the groove-shaped support member. is configured to be slidably fitted in the groove, the groove-shaped support member is provided on the opening side, and pressing and supporting mechanism for pressing the supporting rod-like body on the bottom side direction, the rotation operating member, the The pressing support mechanism is constructed between the opening-side edge of the groove-shaped support member, provided with a nut on one end side, and provided with a rotation operation member on the other end side, and is engaged with the bolt and inclined. The first and second actuating members are slidably abutted on the surface, and the first actuating member is configured to engage with the bolt substantially without play and move in the axial direction. The second actuating member is movable along the inclined surface. Engage the bolt with play and support the second actuating member moving along the inclined surface when the first actuating member is brought into pressure contact with the second actuating member by operating the rotation operating member. The support rod-like body is provided with a protrusion on the bottom side of the groove-shaped support member, and the bottom of the groove-shaped support member is engaged with the protrusion. This proposes an attachment support position variable mechanism in a bed provided in a plurality in the length direction .

Further, in the present invention, the groove-shaped support member is installed in the lateral direction on the bed frame that supports the bottom, and the support rod-like body protruding from the attachment support member is slidably fitted into the groove portion of the groove-shaped support member. The groove-shaped support member is provided with a pressure support mechanism that presses the support rod-shaped body in the bottom side direction on the opening side thereof, and a rotation operation member thereof. A first member that is installed between edges on the opening side of the support member, a nut is provided on one end side, and a rotation operation member is provided on the other end side. The second actuating member is configured to be movable in the axial direction by engaging with the bolt substantially without play, and the second actuating member is inclined. Engage the bolt with play so that it can move along the surface, When the first actuating member is brought into pressure contact with the second actuating member by operating the rolling operation member, the supporting rod-like body is arranged on the side on which the second actuating member moves along the inclined surface. The support rod-like body is provided with a plurality of engaging portions in the length direction on the bottom side of the groove-shaped support member, and a protrusion that engages with the engagement portion on the bottom portion of the groove-shaped support member. We propose a mechanism for changing the support position of an attachment in a bed provided with a bed.

In the present invention, it is proposed that in the above configuration, the bolt is a stepped bolt and the first operating member is pushed by the stepped portion .

Further, in the present invention, it is proposed that the first operating member is provided on both sides of the second operating member in the above configuration .

Further, in the present invention, the groove-shaped support member is installed in the lateral direction on the bed frame that supports the bottom, and the support rod-like body protruding from the attachment support member is slidably fitted into the groove portion of the groove-shaped support member. The groove-shaped support member is provided with a pressure support mechanism that presses the support rod-shaped body in the bottom side direction on the opening side thereof, and a rotation operation member thereof. A support member is installed between edges on the opening side, a rotary bearing is provided on one end side, and a rotation operation member is provided on the other end side. 1 and a second actuating member. The first actuating member is configured to be screwed into a bolt and movable in the axial direction, and the second actuating member is movable along the inclined surface. Engage the bolt with play so that the When the first actuating member is brought into pressure contact with the second actuating member, a support bar is disposed on the side where the second actuating member moves along the inclined surface, and the support bar A protrusion support is provided on the bottom side of the groove-shaped support member, and the attachment support position varying mechanism in the bed is provided with a plurality of engaging portions that engage with the protrusion on the bottom of the groove-shaped support member. Propose .

Further, in the present invention, the groove-shaped support member is installed in the lateral direction on the bed frame that supports the bottom, and the support rod-like body protruding from the attachment support member is slidably fitted into the groove portion of the groove-shaped support member. The groove-shaped support member is provided with a pressure support mechanism that presses the support rod-shaped body in the bottom side direction on the opening side thereof, and a rotation operation member thereof. A support member is installed between edges on the opening side, a rotary bearing is provided on one end side, and a rotation operation member is provided on the other end side. 1 and a second actuating member. The first actuating member is configured to be screwed into a bolt and movable in the axial direction, and the second actuating member is movable along the inclined surface. Engage the bolt with play so that the When the first actuating member is brought into pressure contact with the second actuating member, a support bar is disposed on the side where the second actuating member moves along the inclined surface, and the support bar In addition, a plurality of engaging portions are provided in the length direction on the bottom side of the groove-shaped support member, and the attachment in the bed is provided with a protrusion that engages with the engaging portion on the bottom portion of the groove-shaped support member. A variable support position mechanism is proposed .

  According to the present invention, in the above-described pressing support mechanism, it is proposed that the first actuating member is provided with a rotation preventing portion that contacts the edge of the edge portion on the opening side. According to the present invention, in this configuration, it is proposed that the first operating member and the second operating member are provided with an engaging portion that prevents relative rotation.

  Further, in the present invention, in the above configuration, it is proposed that the attachment attached to the attachment support member is an accessory attached to the side portion of the bed, and the groove-shaped support member is provided to project in the width direction of the bed frame.

  Further, in the present invention, in the above configuration, it is proposed that the attachment to be attached to the attachment support member is a board to be attached to the end in the longitudinal direction of the bed, and the grooved support member is provided to project in the longitudinal direction of the bed frame.

  In the present invention, the support rod-like body of the attachment support member is slidably fitted into the groove portion of the groove-shaped support member installed on the bed frame, and the support rod-like body is slid to support the attachment product. After bringing the member to an appropriate position with respect to the bed frame, the rotation operation member is manually operated, and the supporting rod-like body is pressed by the pressing support mechanism. Thus, the support rod-like body is fixed to the groove portion of the groove-shaped support member so as not to slide, so that the attachment support member can be attached to the bed frame.

  In this attached state, when the first operating member is moved away from the second operating member by manually operating the rotation operating member, the pressing to the supporting rod-like body by the second operating member is released. The body can slide in the groove portion of the groove-shaped support member, and the mounting position can be adjusted.

  Providing the first actuating member with a rotation preventing part prevents the first actuating member from rotating when the second actuating member releases the support rod-like body. Therefore, the next mounting operation is easy. In addition to the rotation preventing portion of the first operating member, if the engaging portion for preventing relative rotation is provided on the first operating member and the second operating member, the rotation of the second operating member is also prevented. Since it can do, attachment operation becomes still easier.

  According to the present invention, when the support rod-shaped body is provided with a protrusion or an engaging portion, the groove-shaped support member is provided with an engaging portion or a protrusion, and a plurality of engaging portions are provided in the length direction. In the state pressed by the mechanism, the support rod-like member with respect to the groove-shaped support member cannot be slid by the engagement between the protrusion and the engaging portion, so that the support rod-like body cannot slide with respect to the groove-shaped support member. The attachment of the body, and hence the attachment support member, can be performed more reliably and firmly, and the attachment position can be changed in stages, so that positioning is easy.

  In the present invention, the pressing support mechanism includes a first operation member and a second operation member which are engaged with a bolt provided with a rotation operation member and are slidably contacted with an inclined surface. The second actuating member is pushed by moving the first actuating member by rotating the second actuating member, and at this time, the second actuating member is moved in the direction of the supporting rod-like body by sliding along the inclined surface. Thereby, the pressing support with respect to the rod-shaped body for a support can be performed reliably.

  In this mechanism, when the first actuating member is provided on both sides of the second actuating member, the number of parts is increased, but the second actuating member is slid along the inclined surface in the direction of the support rod. Since the pressing force from the first actuating member can be evenly applied from the left and right sides of the second actuating member, a smoother operation is possible.

  When the attachment attached to the attachment support member is an accessory attached to the side of the bed, such as a side rail or IV pole, when the width of the bottom to be supported is changed with respect to the common bed frame In addition, the attachment support member can be supported at an appropriate position.

  In addition, when the attachment attached to the attachment support member is a board attached to the end in the longitudinal direction of the bed, the floor length of the bed frame can be changed by changing the support position of this board, that is, the headboard or footboard. Can be changed.

Next, an embodiment of the attachment support position varying mechanism in the bed of the present invention will be described in detail with reference to the accompanying drawings.
First, the embodiment shown in FIGS. 1 to 9 will be described. FIG. 1 is a perspective view showing a bed to which the present invention is applied with the bottom omitted, where 1 is a bed frame and 2 is a longitudinal member thereof. First, this embodiment is a case where an attachment attached to the attachment support member 4 described later is an accessory attached to a side portion of a bed, such as a side rail or an IV pole, and the attachment according to the present invention. As shown in FIG. 1, the support position varying mechanism is installed at locations on both the head side and the foot side of the bed, that is, at four locations.

  Reference numeral 3 denotes a groove-shaped support member, and this groove-shaped support member 3 is installed on the longitudinal member 2 with the length direction of the groove portion facing outward in the width direction of the bed frame 1. Reference numeral 4 denotes an attachment support member, and reference numeral 5 denotes a support bar that protrudes laterally on both sides thereof. In this embodiment, the support bar 5 is also constituted by a frame member and can be fitted into the groove portion of the groove-shaped support member 3.

  Next, the reference numeral 6 generally indicates a pressing support mechanism. This pressing support mechanism 6 is installed on the opening-side edges 7a and 7b of the groove-shaped support member 3, and provided with a nut 8 on one end side, It comprises a bolt 10 provided with a rotation operation member 9 on the other end side, and a first operating member 11 and a second operating member 12 engaged with the bolt 10. Reference numerals 13 and 14 denote engagement holes of the first and second actuating members 11 and 12, respectively. As shown in the figure, the bolt 10 is a stepped bolt and has a male screw portion 15 formed only on the tip side. The first actuating member 11 is formed so that the inner diameter of the engagement hole 13 is slightly larger than the outer diameter of the bolt 10, so that the first actuating member 11 can be engaged with the bolt 10 and moved substantially without play. The step portion 16 is configured to contact the left side in the drawing and be driven rightward. On the other hand, the engagement hole 14 of the second actuating member 12 is made larger than the outer diameter of the bolt 10 in the vertical direction to form play. Further, the first operating member 11 and the second operating member 12 have a shape in which they are slidably contacted by the inclined surface 17. The inclined surface 17 is configured such that the first operating member 11 is disposed on the upper side and the second operating member 12 is disposed on the lower side.

  As shown in the figure, the first actuating member 11 is formed with a rotation preventing portion 18 which is positioned above the edge portion 7a on the opening side and abuts. Unlike this embodiment, the rotation preventing portion 18 may be omitted as shown in FIGS.

  Next, reference numeral 19 denotes a protrusion provided on the lower side of the tip of the supporting rod-like body 5. Provided.

  In the figure, reference numeral 21 denotes a bottom supported by the bed frame 1, 22 denotes an attachment hole provided in the attachment support member 4, and 23 denotes a reinforcing rib provided on the support bar 5. In FIG. 1, reference numeral 24 denotes a board attached to the end in the longitudinal direction of the bed, in this case, a footboard, and 25 denotes a board receiver to which the footboard 24 is detachably attached. A support rod-like body 26 is provided on the board receiver 25 so that the support rod-like body 26 is attached to the longitudinal member 2 of the bed frame 1 so as to be extendable and contracted. It is a rotation operation member for attaching to and detaching from the direction member 2.

  In the above configuration, in the present invention, the support bar 5 protruding from the attachment support member 4 is fitted into the groove of the grooved support member 3, and the fitted support bar 5 is fitted along the groove. By sliding the attachment support member 4 to an appropriate position according to the floor width of the bottom 21, the rotary operation member 9 is manually operated to press the pressing support mechanism 6 against the support bar 5. The supporting rod-like body 5 can be made non-slidable to be in an attached state.

  That is, FIG. 3 shows a state in which the rotation operation member 9 is rotated in the direction of loosening the pressure and the bolt 10 is retracted. In this state, the first operation member 11 is pressed against the second operation member 12. In this case, the support bar 5 can be moved along the groove of the groove-shaped support member 3. In this state, the first actuating member 11 is provided with a rotation preventing portion 18 and abuts against the edge 7a on the opening side, so that the first actuating member 11 is rotated by its weight balance. It can be prevented from moving. However, since the second actuating member 12 can prevent the first actuating member 11 from rotating depending on the degree to which the pressure is loosened, it is possible not to provide the rotation preventing part as shown in FIG.

  As described above, the protrusion 19 is provided on the lower side of the tip of the support bar 5, and a plurality of engaging portions 20 a, 20 b, and 20 c that engage with the protrusion 19 are provided in the length direction of the groove-shaped support member 3. Since it is provided, the support bar 5 can be positioned each time the protrusion 19 corresponds to each of the engaging portions 20a, 20b, and 20c.

  After engaging the protrusion 19 of the support rod 5 with any of the engaging portions 20a, 20b, and 20c in this way, the bolt 10 is screwed into the nut 8 by the rotation operation member 9, and the stepped portion of the bolt 10 is obtained. The first actuating member 11 moves to the right in the figure when pushed by 16. Then, the first operating member 11 and the second operating member 12 come into contact with each other through the inclined surface 17 by the movement. In this state, when the rotation operation member 9 is further operated to move the first operation member 11 in the right direction in the figure, the first operation member 11 slides the second operation member 12 through the inclined surface 17. Move down. For this reason, as shown in FIG. 4, the lower surface of the second actuating member 12 has the support rod-like body 5 in a state in which the protrusion 19 is engaged with any one of the engaging portions 20a, 20b, 20c. Since the pressing is performed in the same direction as the mating direction, the support bar 5 can be firmly fixed to the groove portion of the groove-shaped support member 3 without play.

  In this way, the support rails of the side rails, IV poles and the like are inserted into and supported by the mounting holes 22 provided in the mounting product support member 4 and can be mounted on the side of the bed to be put into use.

  7 to 9 show the support positions of the attachment support member 4 when the protrusions 19 of the support bar 5 are engaged with the engaging portions 20a, 20b, and 20c, respectively. In these drawings, the pressing support mechanism 6 indicates only the reference numerals, and the specific configuration is not shown.

  First, FIG. 7 shows a state in which the projection 19 is engaged with the engaging portion 20a and fixed when the bed frame 1 supports the bottom 21 having a floor width of 830 mm. In this state, the attachment support member 4 is located inside the end edge of the bottom 21 and is in the retracted state.

  Next, FIG. 8 shows a state in which the projection 19 is engaged and fixed to the engaging portion 20b when the bottom 21 having a floor width of 830 mm is supported by the bed frame 1 as in FIG. In this state, the attachment support member 4 is positioned appropriately outside the edge of the bottom 21, and therefore, as described above, the side rail column is inserted into the attachment hole of the attachment hole member 22 provided in the attachment support member 4. Or an IV pole or the like can be inserted and supported, and attached to the side of the bed to be ready for use.

  Next, instead of the bottom 21 shown in FIG. 8, the bed frame 1 supports the bottom 21 ′ having a floor width of 910 mm indicated by a two-dot chain line in the figure to constitute a bed having a wide floor width. Since the support member 4 is positioned inside the end edge of the bottom 21, it cannot be used.

  Therefore, in the present invention, as shown in FIG. 9, the protrusion 19 is engaged with the engaging portion 20 c instead of the engaging portion 20 b and is fixed by the pressing support mechanism 6. If fixed at this position, even in the case of the bottom 21 ′ having a long floor width, the attachment support member 4 is appropriately positioned outside the edge of the bottom 21 ′, so that it can be put into use.

  In the above embodiment, the first actuating member 11 is not advanced or retracted by screwing with the bolt 10, but the bolt 10 is stepped and pushed by the step portion 16. It can also be configured to advance and retract by screwing together. In this case, a rotary bearing may be provided in place of the nut 8.

  In the above embodiment, the protrusion 19 is provided on the support bar 5 and the engaging portions 20a, 20b, and 20c are provided on the groove support member 3. On the contrary, the support bar 5 is provided on the support bar. You may provide a protrusion in an engaging part and a channel-shaped support member.

  Further, in place of the protrusions and the engaging portions, it is possible to provide a large number of concavities and convexities to be engaged on both the groove-shaped support member 3 and the supporting rod-like body 5, or to use friction surfaces instead of the concavities and convexities.

Next, FIGS. 10 to 13 show another embodiment of the present invention.
This embodiment is characterized in that, in addition to the configuration of the above embodiment, the first operating member 11 and the second operating member 12 are provided with engaging portions that prevent relative rotation. However, since the other constituent elements are the same, the corresponding constituent elements are denoted by the same reference numerals, and redundant description is omitted.
That is, in this embodiment, the engaging portion is constituted by the rectangular cross-section projecting portion 29 provided on the first actuating member 11 and the cutout portion 28 that engages the cross-sectional rectangular projecting portion 29 so as to be movable up and down. In addition, by providing this and the rotation preventing portion 18, the first actuating member 11 and the second actuating member are released when the pressing of the support actuating rod by the second actuating member is released. Since it can prevent that 12 rotates, the next attachment operation is easy.

Next, FIG. 14 shows still another embodiment of the present invention.
This embodiment is characterized in that the first actuating member 11 is provided on both sides of the second actuating member 12, and the other constituent elements are the same, so the corresponding constituent elements are the same. The description which attaches a code | symbol and overlaps is abbreviate | omitted.
In this embodiment, the inclined surfaces 17 on the left and right sides of the second actuation member 12 are arranged in a mountain shape, and on either side, the first actuation member 11 is on the upper side and the second actuation is on the lower side. The member 12 is arranged.

  When the first actuating members 11 and 11 ′ are thus provided on both sides of the second actuating member 12, the number of parts increases, but the second actuating member 12 is supported along the inclined surface 17. Since the pressing force from the first actuating members 11 and 11 'for sliding in the rod-like body 3 direction can be applied equally from the left and right sides of the second actuating member 12, a smoother operation is possible. .

Next, FIG. 15 shows still another embodiment of the present invention.
In this embodiment, unlike the above embodiment, the attachment to be attached to the attachment support member is a board 24 attached to the end in the longitudinal direction of the bed. In this case, the attachment support member is shown in FIG. Such a board receiver 25. A support bar 26 is projected from the board receiver 25.
On the other hand, a groove-shaped support member 3 similar to that of the above-described embodiment protrudes from the longitudinal member 2 of the bed frame 1 in the longitudinal direction, and the groove-shaped support member 3 has the above-described embodiment. A pressing support mechanism similar to the above is provided.

  In the above configuration, by changing the support position of the board 24 attached to the end in the longitudinal direction of the bed by the board receiver 25, it is possible to cope with the change in the floor length of the bed frame 2.

  As described above, the present invention has the following advantages, and has a great industrial applicability when applied to a bed used in a hospital or at home.

The present invention has the following advantages regarding the bed floor width.
1. Even when the floor width of the bottom to be supported is changed with respect to the common bed frame, the accessory mounting member can be supported at an appropriate position.
2. Accordingly, since the bed frame can be shared, the cost can be reduced.
3. The change of the position of the accessory mounting member can be performed without the need for a special tool, and can be supported very firmly and without play.

The present invention has the following advantages regarding the bed floor length.
1. Other than the work of removing the bottom or the board, the length of the bed frame can be changed without disassembling, and the workability is very good.
2. Since bed frames having different floor lengths can be used in common, manufacturability is good, and manufacturing costs, management costs, and purchase costs can be reduced.
3. The board receiver configured independently of the rod-shaped member can be firmly attached to the rod-shaped member without play by the groove-shaped member, and the usability as a bed is not deteriorated.

It is a perspective view showing a bed to which the present invention is applied with the bottom omitted. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, showing an embodiment of the present invention, is a cross-sectional view of a main part. It is a principal part cross-sectional view shown in the situation different from FIG. The other embodiment of this invention is shown and it is a principal part cross-sectional view. FIG. 6 is a cross-sectional view of a main part shown in a different aspect from FIG. 5. 1, showing an embodiment of the present invention, is a vertical and horizontal cross-sectional view of a main part. FIG. 8 shows an embodiment of the present invention, and is a vertical cross-sectional view of a main part shown in a different aspect from FIG. 7. FIG. 9 shows an embodiment of the present invention, and is a main part vertical and horizontal cross-sectional view shown in a different aspect from FIGS. 7 and 8. It is a perspective view which shows other embodiment of this invention. It is a diffusion diagram which shows the component of embodiment shown in FIG. It is the perspective view which looked at the 2nd operation member shown in the diffusion chart of Drawing 11 from another angle. It is sectional drawing which shows other embodiment of this invention. It is sectional drawing of other embodiment of this invention. It is a perspective view of other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bed frame 2 Longitudinal member 3 Groove-shaped support member 4 Attachment support member 5 Supporting rod-like body 6 Press support mechanism 7a, 7b Opening edge 8 Nut 9 Rotation operation member 10 Bolt 11 1st operation member 12 2nd operation Members 13 and 14 Engagement hole 15 Male thread part 16 Step part 17 Inclined surface 18 Anti-rotation part 19 Protrusion 20a, 20b, 20c Engagement part (engagement hole)
21 Bottom 22 Mounting hole member 23 Reinforcing rib 24 Board (footboard)
25 Board Receptor 26 Supporting Rod 27 Rotation Operation Member 28 Notch 29 Cross Section Protrusion

Claims (10)

Established the interposition support member on the bed frame for supporting the bottom laterally, a supporting rod member projecting from the fittings supporting member is configured to be slidably fitted in the groove of the groove-shaped support member, wherein The groove-shaped support member is provided with a pressure support mechanism that presses the support rod-shaped body in the bottom side direction on the opening side thereof, and a rotation operation member thereof. The pressure support mechanism is provided on the opening side of the groove-shaped support member. The first and second bolts are slidably abutted by an inclined surface, and a bolt provided with a nut on one end and a rotation operation member on the other end, and a bolt engaged with the bolt. The first actuating member is configured to engage with the bolt substantially without play and move in the axial direction, and the second actuating member extends along the inclined surface. Engage the bolt with play so that it can move, and rotate the operation member When the first actuating member is brought into pressure contact with the second actuating member by operation, a support rod-like body is arranged on the side where the second actuating member moves along the inclined surface, and the support rod-like shape is further arranged. The body is provided with a protrusion on the bottom side of the groove-shaped support member, and a plurality of engaging portions engaging with the protrusion are provided in the length direction on the bottom of the groove-shaped support member. A mechanism for changing the support position of the attachment on the bed. A groove-shaped support member is installed laterally on the bed frame that supports the bottom, and a support rod-shaped body protruding from the attachment support member is slidably fitted into the groove portion of the groove-shaped support member. The groove-shaped support member is provided with a pressure support mechanism that presses the support rod-shaped body in the bottom side direction on the opening side thereof, and a rotation operation member thereof. The pressure support mechanism is provided on the opening side of the groove-shaped support member. The first and second bolts are slidably abutted by an inclined surface, and a bolt provided with a nut on one end and a rotation operation member on the other end, and a bolt engaged with the bolt. The first actuating member is configured to engage with the bolt substantially without play and move in the axial direction, and the second actuating member extends along the inclined surface. Engage the bolt with play so that it can move, and rotate the operation member When the first actuating member is brought into pressure contact with the second actuating member by operation, a support rod-like body is arranged on the side where the second actuating member moves along the inclined surface, and the support rod-like shape is further arranged. The body is provided with a plurality of engaging portions in the length direction on the bottom side of the groove-shaped support member, and a protrusion that engages with the engaging portion is provided on the bottom portion of the groove-shaped support member. A mechanism for changing the support position of an attachment in a bed, characterized by 3. The attachment support position variable mechanism in a bed according to claim 1, wherein the bolt is a stepped bolt, and the first operating member is pushed by the step portion . The attachment supporting position variable mechanism in a bed according to any one of claims 1 to 3, wherein the first operating member is provided on both sides of the second operating member . A groove-shaped support member is installed laterally on the bed frame that supports the bottom, and a support rod-shaped body protruding from the attachment support member is slidably fitted into the groove portion of the groove-shaped support member. The groove-shaped support member is provided with a pressure support mechanism that presses the support rod-shaped body in the bottom side direction on the opening side thereof, and a rotation operation member thereof. The pressure support mechanism is provided on the opening side of the groove-shaped support member. The first and second bolts are slidably abutted on the inclined surface by engaging with the bolts provided with a rotary bearing on one end side and a rotary operation member on the other end side. The first actuating member is configured to be able to move in the axial direction by being screwed to the bolt, and the second actuating member is configured to be movable along the inclined surface. The first actuating part is engaged by engaging the bolt and operating the rotary operation member. When the second actuating member is brought into pressure contact with the second actuating member, a support rod-like body is disposed on the side where the second actuating member moves along the inclined surface, and the groove-like support member is disposed on the support rod-like body. A fitting support position varying mechanism in a bed, wherein a projection is provided on the bottom side of the groove-shaped support member, and a plurality of engaging portions that engage with the projection are provided in the bottom of the groove-shaped support member . A groove-shaped support member is installed laterally on the bed frame that supports the bottom, and a support rod-shaped body protruding from the attachment support member is slidably fitted into the groove portion of the groove-shaped support member. The groove-shaped support member is provided with a pressure support mechanism that presses the support rod-shaped body in the bottom side direction on the opening side thereof, and a rotation operation member thereof. The pressure support mechanism is provided on the opening side of the groove-shaped support member. The first and second bolts are slidably abutted on the inclined surface by engaging with the bolts provided with a rotary bearing on one end side and a rotary operation member on the other end side. The first actuating member is configured to be able to move in the axial direction by being screwed to the bolt, and the second actuating member is configured to be movable along the inclined surface. The first actuating part is engaged by engaging the bolt and operating the rotary operation member. When the second actuating member is brought into pressure contact with the second actuating member, a support rod-like body is disposed on the side where the second actuating member moves along the inclined surface, and the groove-like support member is disposed on the support rod-like body. A plurality of engaging portions are provided in the length direction on the bottom side of the bed, and a protrusion for engaging with the engaging portion is provided on the bottom portion of the grooved support member. Variable position mechanism . The attachment support position variable in the bed according to any one of claims 1 to 6, wherein the first actuating member is provided with a rotation preventing portion that comes into contact with an edge of the edge portion on the opening side. mechanism. 8. The attachment support position varying mechanism for a bed according to claim 7 , wherein the first operating member and the second operating member are provided with engaging portions that prevent relative rotation. Fitment for attaching the fitment support member are accessory to be attached to the side of the bed, the groove-shaped support member, any one of the preceding claims, characterized in that the projecting in the width direction of the bed frame The attachment support position variable mechanism in the bed described in 1. Fitment for attaching the fitment support member is a board for mounting the longitudinal end side of the bed, either the channel-shaped support member according to claim 8, characterized in that the projecting longitudinal direction of the bed frame 1 The attachment support position variable mechanism in the bed described in the paragraph .

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