JPH0631973Y2 - Sleeper fence - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a bed fence for arbitrarily adjusting the height of a frame on which bedding such as a mattress is placed.

(Prior Art) A bed apparatus used as an examination table or a treatment table uses a bed fence in which the height of the frame on which the bedding is placed can be arbitrarily adjusted during examination and treatment. ing.

Conventionally, such a sleeper fence has been used as an official utility model Sho 56-1380.
The structure shown in Japanese Patent No. 9 is known. In the bed fence shown in this publication, fences are erected at both ends of the floor board support frame. Strut pipes are erected at both ends of each fence in the width direction, and legs are slidably inserted into these strut pipes. A lead screw having a handle at its upper end is rotatably supported along the vertical direction on each of the fences. A moving member having a female screw is screwed onto the lead screw. Wires whose intermediate portions are guided by pulleys are stretched between the moving member and the upper ends of the legs.

Therefore, when the lead screw is rotated by the handle, the moving member moves up and down along the lead screw, so that the legs can be slid and the supporting height of the floor board support frame by the bed rail can be adjusted. It has become.

By the way, in the bed rail having such a structure, a handle connected to the upper end of the lead screw is provided so as to project upward from the upper end surface of the rail. Therefore, if the height of the floor board support frame is adjusted, the unnecessary handle will protrude to the upper end side of the bed rail, which will be very annoying and not only bad in appearance but also during examination. Also, the height of the floor board support frame may be moved carelessly during medical treatment.

(Problems to be solved by the invention) As described above, since the handle for adjusting the height of the conventional bed fence is provided so as to project from the upper end of the fence, it obstructs when not in use and the appearance is improved. The appearance was bad, and sometimes I touched it and moved it carelessly.

The present invention has been made in view of the above circumstances. The purpose of the invention is to sleep a sleeping bed so that the handle provided on the upper end of the board body can be housed so as not to get in the way when not in use. To provide a fence.

[Means for Solving the Problem] (Means and Actions for Solving the Problems) In order to solve the above problems, the present invention relates to a fence main body having at least an upper horizontal rail member and a lower horizontal rail member facing each other in the vertical direction with a space therebetween. A pair of fixed columns provided at both ends in the length direction of the member along the vertical direction, an extendable column provided on each fixed column so as to be slidable in the vertical direction, the upper horizontal rail member and the lower horizontal rail member A screw rod that is rotatably supported along the up-down direction in the middle of the longitudinal direction of and, a nut body screwed to this screw rod, and a nut body that connects this nut body and the expansion support And a connecting member for interlocking the telescopic support with vertical movement of the nut body along the screw rod when the screw rod is rotated while being held unusable. Handle shaft that is slidably connected to the upper end portion of the rail along the axial direction, a handle that has one end connected to the upper portion of the handle shaft at a substantially right angle, and the handle that is formed on the upper end surface of the fence body. The shaft is lifted from the raised position to lower the housing, and the upper horizontal rail member and the lower horizontal rail member are symmetrically provided about the screw rod to form a pair. An upper pulley and a lower pulley, a pair of upper pulley and a lower pulley with a midway portion attached thereto and both ends fixed to one side surface of the connecting member, and the other pair of upper pulleys. And a second pulley in which a middle portion is hung on the lower pulley and both ends are fixed to the other side surface of the connecting member.

According to such a configuration, when the handle shaft is slid in the upward direction, the handle projects from the upper end surface of the fence main body, so that the handle can be easily operated,
If you slide the handle shaft down,
Since the handle is housed in the housing recess, the handle does not get in the way.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 17. FIG. 2 shows a bed apparatus, which is provided with a frame 10 on which bedding such as a mattress is placed. A footboard body 12 serving as a bed fence is connected to the foot side of the frame 10 and a headboard body 14 also serving as a bed fence is connected to the head side substantially vertically. The footboard body 12 is constructed as shown in FIG. 1 or 3. That is,
The footboard body 12 includes a board frame 16 forming a fence body. The board frame 16 is composed of a pair of fixed columns 18 that are spaced apart and opposed to each other in the width direction, an upper horizontal beam member 20 that is installed between the upper ends of these fixed columns 18, and a lower horizontal beam member 22 that is installed between the lower ends thereof. Has been formed.

The upper crosspiece member 20 has an upper surface covered with an upper decoration body 24 and both side surfaces covered with side decoration bodies 26. Further, the lower side of the lower horizontal rail member 22 is covered with a hollow lower decorative member 28. A reinforcing pipe 32 having a lower end to which a connecting member 30 is fixed is provided on the inner surface side of the side decorative body 26. The upper end of the reinforcing pipe 32 is fitted to the projection 34 provided on the lower surface of the end of the upper horizontal rail member 20, and the connecting member 30 at the lower end is connected and fixed to the lower end of the side decorative body 26 by the screw 36. There is. The front and rear surfaces of the board frame 16 are covered with decorative panels 38 as shown in FIGS. 11 and 12.

The pair of fixed columns 18 has a U-shaped cross section as shown in FIG.
A telescopic column 42 made of a pipe to which is attached is slidably inserted. The opposite side surfaces of the pair of fixed support columns 18 are opened along the axial direction, and the horizontal rod member 44 as a connecting member extends from these openings into the fixed support column 18.
Both ends of are inserted. The end portions of the horizontal rod members 44 are fixed to the telescopic columns 42, respectively. A gas spring 46 is inserted into each telescopic column 42. The cylinder 48 of the gas spring 46 has a telescopic support 4
2 is fixed by a fixing member 50 provided on the upper end surface of the spring 2, and the spring rod 52 is screwed to the fixed support column 18 with the screw 5.
It is fixed by 4. The expandable support column 42 is urged by the gas spring 46 provided in this manner in the direction in which the lower end portion thereof projects from the fixed support column 18.

A nut body 56 is provided in the middle of the horizontal rod member 44. A screw rod 58 is screwed onto the nut body 56 with its axis substantially vertical. The lower end of the screw rod 58 penetrates the lower horizontal rail member 22 and projects into the lower decorative body 28, and the projecting end is rotatably supported by a radial bearing 60 provided on the inner surface of the lower decorative body 28. ing. Also, the screw rod 58
The lower part of the above is rotatably inserted into and supported by a collar 62 provided upright on the upper surface of the lower horizontal rail member 22, and the upper end surface of the collar 62 is supported by a thrust bearing 64 in the thrust direction. The screw rod 5
The lower end of the guide pipe 66 is connected to the upper end of 8 by a connecting pin 68 as shown in FIG. The guide pipe 66 is inserted into an exterior pipe 69 provided between the upper horizontal rail member 20 and the upper surface of the nut body 56. The guide pipe 66 is the screw rod 5
The cross-sectional shape of the inner peripheral surface of the lower end connected to 8 is formed in a circular portion 66a as shown in FIG. 7, and the other portion is a polygonal portion as shown in FIG. 6, a hexagonal portion in this embodiment. It is formed in 66b.

A handle shaft 70 is inserted in the guide pipe 66. The handle shaft 70 has a lower end portion formed in an engaging portion 70a that non-rotatably engages with the hexagonal portion 66b via a groove portion 72, and above the groove portion 72, a large diameter portion 70b having a circular cross section and a taper. The small diameter portion 70d is sequentially formed via the portion 70c. The small diameter portion 70d projects from the upper end opening of the guide pipe 66, and a stopper spring 74 is provided on the projecting portion. As shown in FIG. 10, the stopper spring 74 is formed by bending a spring steel wire into an approximately Ω shape, and has a diameter smaller than the large diameter portion 70b of the handle shaft 70 in the middle thereof and substantially equal to the groove portion 72. A pair of arcuate portions 74a having the same curvature are formed. The stopper spring 74 is provided between the upper end surface of the guide pipe 66 and the lower end surface of the upper decorative body 24, whereby the vertical movement of the stopper spring 74 is restricted while being engaged with the handle shaft 70. When the handle shaft 70 is raised from the state shown in FIG. 4 in the direction projecting from the guide pipe 66 as shown in FIG. After the arcuate portion 74a is elastically deformed in the opening direction, it is engaged with the groove portion 72 to hold the handle shaft 70 in the raised position. When the handle shaft 70 is strongly pushed in the descending direction, the pair of arcuate portions 74a of the stopper spring 74 elastically deforms in the opening direction and disengages from the groove portion 72. Therefore, the handle shaft 70 should be lowered. You can

The upper end of the handle shaft 70 has the upper decoration 2
4 protrudes from the through hole 76 formed on the upper surface side. The through hole 76 is formed to have an inner diameter dimension capable of rotatably supporting the large-diameter portion 70b of the handle shaft 70, and is opened in the upper surface of the upper decorative body 24 to form a housing recess 78. There is an opening on the inner bottom surface of the. The handle shaft 7 protruding into the accommodation recess 78
One end of a handle 80 is fixed to the upper end of 0.
That is, the handle 80 is connected to the axis of the handle shaft 70 at a right angle. This handle 8
0 is a main body 80a whose one end is connected to the handle shaft 70, a stepped step 80b formed on the upper surface of the other end of the main body 80a, and one end at the other end of the main body 80a. It is formed by a handle knob 80c pivotally mounted by a pin 82 and provided so as to be able to rise and fall. A stand bar 84 is provided on one end surface of the handle knob 80c so as to abut against the other end surface of the main body portion 80a when the handle knob 80c is erected substantially vertically, and to maintain the erected state. One end of 80c is engaged with a plate spring 86 provided at the other end of the main body 80a to be elastically held.

It should be noted that when the handle knob 80c is laid down as shown in FIG.
A pair of finger hooks 88 on which a finger can be hooked to pull it up is formed on a.

A pair of upper pulleys 90 are rotatably supported on both sides of the exterior pipe 69 on the lower surface of the upper horizontal rail member 20 with their axes of rotation orthogonal to the plate surface of the footboard body 12. Further, a pair of lower pulleys 92 is provided at both ends of the upper surface of the lower horizontal rail member 22.
It is rotatably supported with its axis parallel to 0. A pair of right and left upper pulleys 90 and lower pulleys 92 are respectively provided with cords 94 such as wires and chains. That is, one end portion of the pair of left and right cord-shaped members 94 has the upper pulley 90.
Of the horizontal rod member 44, and the end portion thereof is fixed to the substantially central portion of the horizontal rod member 44 in the longitudinal direction by a screw 96. The other end of the cord-like member 94 is hung over the lower side of the lower pulley 92 for about a half circumference and vertically rises upward, and is also fixed to the end of the horizontal rod member 44 by a screw 98. Both ends of the one cord 94 and both ends of the other cord 94 are fixed to different side surfaces of the horizontal rod member 44.

In this way, the pair of left and right cord-shaped members 94, whose both ends are fixed to the central portion and the end portion of the horizontal rod member 44, respectively, are attached to the upper pulley 9
0 and the lower pulley 92, when the screw rod 58 is rotated by the handle 80, the horizontal rod member 44
Can be moved up and down without tilting to the left or right. Therefore, the pair of telescopic columns 42 connected to both ends of the horizontal rod member 44 can be projected from the fixed column 18 with the same length.

Note that the decorative panel 38 provided on the outer surface side of the footboard body 12 has a central portion in the width direction shown in FIGS.
As shown in the figure, there is provided a height indicating plate 100 made of a graduated transparent plate. And the height display board 100
The protruding length of the telescopic column 42, that is, the height of the frame 10 can be known by reading the position of the nut body 56 of the horizontal rod member 44, which is transparent from the above, from the scale.

Since the headboard body 14 has almost the same configuration as the footboard body 12, the same parts are designated by the same reference numerals and the description thereof will be omitted. The headboard body 14 has a support pipe 102 in which the upper end portion of the screw rod 58 is fixed to the upper horizontal rail member 20 as shown in FIGS. 13 and 14.
It is rotatably supported by the handleboard 80, and is different in that the handle 80 is not connected to the upper end like the footboard body 12.

As shown in FIG. 14, a first bevel gear 104 is fitted to the lower end portion of the screw rod 58 of the footboard body 12 located in the lower decorative body 28, and the screw rod 58 of the headboard body 14 is fitted. A second bevel gear 106 is fitted to the lower end of the. A third bevel gear 108 is meshed with the first bevel gear 104, and the second bevel gear 1 is
A fourth bevel gear 110 is meshed with 06. The third bevel gear 108 and the fourth bevel gear 110 each have a support shaft rotatably supported by a gear box 112 provided at a lower end portion on the inner surface side of each board body 12 and 14 with its axis being horizontal. It is fitted to one end of 114. The pair of support shafts 114 are connected to each other by a connecting shaft 116 provided in the central portion on the lower surface side of the frame 10 along the longitudinal direction.

The connecting shaft 116 is constructed as shown in FIGS. 15 to 17. That is, the connecting shaft 116 is divided into two, a foot-side connecting shaft 118 and a head-side connecting shaft 120. The foot side connecting shaft 118 has a first engaging member 126. The first engaging member 126 has a first split groove 122 formed at the front end, and the rear end is connected by a pin 124 to the support shaft 114 fitted with the third bevel gear 108. One end of the first cylindrical body 128 is slidably fitted on the tip of the first engaging member 126. The first split groove 122 is formed at one end of the first tubular body 128.
A first engaging pin 130 that engages with is provided in the radial direction.

One end of a slide shaft 132 is slidably inserted into the other end of the first tubular body 128. At one end of the slide shaft 132, the second split groove 1 opened at the tip end surface is formed.
34 is formed, and the second split groove 134 is slidably engaged with a guide pin 136 provided at the other end of the first cylindrical body 128. The slide shaft 132
A first stopper pin 138 is provided on one end of the second split groove 134 in a state of closing the opening end of the second split groove 134, and the slide shaft 132 is pulled out from the first cylindrical body 128 by the first stopper pin 138. Has been blocked. Further, a second stopper pin 140 is provided in the radial direction in the middle of the slide shaft 132. This second stopper pin 140
A coil spring 142 for urging the slide shaft 132 in a direction projecting from the cylindrical body 128 shown by an arrow is interposed between and the one end surface of the slide shaft 132.

An engagement hole 144 is formed at the other end of the slide shaft 132. A second engagement pin 146 is provided at the end of the engagement hole 144 along the radial direction. One end of a second engaging member 147 that constitutes the head-side connecting shaft 120 is inserted into the engaging hole 144. The second engagement pin 146 is provided at one end of the second engagement member 146.
Is formed with a third split groove 148. Further, the second tubular body 15 is provided on the other end side of the second engaging member 146.
One end of 0 is externally fitted, and these are a pair of connecting pins 152.
Is fixed by. One end of a connecting cylinder 154 is externally fitted and fixed to the other end of the second cylinder 150. A third engagement pin 156 is provided at the other end of the connecting cylinder 154 along the radial direction. This third engagement pin 15
A third engaging member 158 is connected to the member 6 by engaging a fourth split groove 160 formed at one end thereof. The other end portion of the third engagement member 158 has one end to which the fourth bevel gear 110 is fitted, and the spindle 1 on the headboard body 14 side.
It is connected to 14 by a pin 159.

Therefore, the rotation of the third bevel gear 108 on the footboard body 12 side is caused by the fourth bevel gear 1 of the headboard body 14 via the foot-side connecting shaft 118 and the foot-side connecting shaft 120.
10 is transmitted. That is, when the screw rod 58 of the footboard body 12 is rotated by the handle 80, the screw rod 58 on the headboard body 14 side can be interlocked with each other via the connecting shaft 116. The first to fourth bevel gears are set to have the same shape such as the number of teeth and the diameter. Therefore, these gears are designed to rotate at the same speed.

Further, the slide shaft 132 is attached to the coil spring 142.
If the slide shaft 13 is slid in the direction opposite to the arrow shown in FIG. 15 against the urging force of the slide shaft 13, as shown in FIG.
The second engaging pin 146 provided at the other end of the second engaging member 147 is connected to the third engaging groove 148 formed at one end of the second engaging member 147.
Can be removed from. As a result, the foot-side connecting shaft 118 and the head-side connecting shaft 120 can be removed from the support shafts 114 of the board bodies 12 and 14, respectively. That is, the connecting shaft 116 can be divided into two.

Next, the operation of the bed fence configured as described above will be described.

When the support height of the frame 10 is changed, the handle 80 housed in the housing recess 78 formed in the upper decorative body 24 of the footboard body 12 is moved from the lowered position shown in FIG. 4 to the raised position shown in FIG. At the same time, the stand bar 84 is raised. When the handle 80 is pulled up, the handle shaft 70 interlocks with it. When the handle shaft 70 is pulled up until the large-diameter portion 70b thereof projects from the guide pipe 66, the arc-shaped portion 74a of the stopper spring 74 is elastically formed in the groove portion 72 formed between the engaging portion 70a and the large-diameter portion 70b. Engage with. Therefore, the handle shaft 70 has the stopper spring 74.
Is held in an elevated state by.

In this way, when the handle 80 is raised, for example, when the height of the frame 10 is increased, the handle 80 is rotated to the right. Then, since the guide pipe 66 rotates via the engaging portion 70a of the handle shaft 70, the screw rod 58 interlocks with the rotation.
When the screw rod 58 rotates to the right, the horizontal rod member 44 descends via the nut body 56 screwed to the screw rod 58, so that the pair of telescopic columns 42 connected to both ends of the horizontal rod member 44 are connected to each other. The supporting height of the frame 10 can be increased by being driven in a direction projecting from the fixed column 18.

At this time, since the pair of telescopic columns 42 are urged by the gas springs 46 in the directions projecting from the fixed column 18, the handle 80 is urged by the urging force.
Can be operated with a light force.

Further, the horizontal rod member 44 to which the pair of left and right expandable columns 42 are connected is prevented from being tilted to the left and right by the pair of cords 94. Therefore, the frame 10 can be increased in height without tilting to the left and right.

Moreover, the one cord-shaped body 94 and the other cord-shaped body 94 are provided on one side surface and the other side surface of the horizontal rod member 44. Therefore, it is possible to prevent the frame 10 from tilting not only in the left-right direction but also in the front-back direction with respect to the horizontal rod member 44.

When the screw rod 58 is rotated by operating the handle 80 provided on the footboard body 12, the rotation is transmitted to the screw rod 58 on the headboard body 14 side by the connecting shaft 116. Therefore, since the pair of telescopic columns 42 of the headboard body 14 also protrude from the fixed column 18 in the same manner as the headboard body 14 side, the frame 10
The height can be increased not only in the left-right direction but also in the front-back direction.

When lowering the height of the frame 10, the handle 80 is rotated counterclockwise to the left.
As a result, the screw rod 58 rotates to the left and the horizontal rod member 44 rises, so that the telescopic column 42 slides in the direction in which it retracts into the fixed column 18. Therefore,
The height of the frame 10 can be reduced. Also in this case, similarly to the case where the frame 10 is raised, the frame 10 can be lowered without tilting in the left-right direction or the front-rear direction.

Further, if the connecting shaft 116 is divided into two parts and removed, the rotation of the handle 80 is not transmitted to the screw rod 58 on the side of the headboard body 14, so that only the height of the footboard body 12 can be changed. That is, the frame 10 can be tilted in the front-back direction.

When the height adjustment of the frame 10 is completed, the stand bar 84 is tilted down and the handle 80 is pushed down. As a result, the stopper spring 74 that elastically holds the handle 80 in the raised position comes out of the groove portion 72 of the handle shaft 70, so that the handle 80 can be lowered together with the handle shaft 70. In this way, by lowering the handle 80, the handle 80 can be accommodated in the accommodating recess 78 formed in the upper decorative body 24, so that the handle 80 becomes an obstacle and the appearance of the bed fence is improved. Not only is it not damaged, but it is not accidentally rotated to shift the positioned height of the frame 10.

18 and 19 show another embodiment of the present invention. In this embodiment, the footboard body 12 and the footboard body 14 are
A handle 80 is provided on each of and. Although each handle 80 is provided on the upper end of the screw rod 58 so as to be slidable along the axial direction thereof as in the above-described embodiment, the handle 80 is provided on each of the footboard body 12 and the footboard body 14. Is provided, the screw rod 58 of each board is not connected by the connecting shaft 116 as in the above-described embodiment. That is, as shown in FIG. 19, the screw rod 58 includes a bearing 1 whose lower end is provided on the upper surface of the lower horizontal rail member 22.
It is rotatably supported by 70.

Therefore, according to such a configuration, since the height of the footboard body 12 side and the headboard body 14 side of the frame 10 can be adjusted separately, the frame 10 can be tilted in the front-rear direction.

In each of the above-mentioned embodiments, the horizontal rod member is used as the connecting member for interlocking the telescopic support with the vertical movement of the nut body, but a wire may be used instead of the horizontal rod member. In that case, a pulley is provided in the middle of the wire so that when the nut body rises, the end of the wire connected to the expansion support moves in the descending direction, and when the nut body descends, the end of the wire can rise. It is sufficient to set the moving direction of.

Further, although the accommodating concave portion is formed in the upper decorative body forming the fence main body, it may be formed in the upper horizontal rail member when the upper decorative body is not provided. Just do it.

[Effects of the Invention] As described above, according to the present invention, a handle for rotating the screw rod to adjust the height of the frame is provided at the upper end of the screw rod so as to be slidable along the axial rotation, and the fence main body is also provided. In the upper end surface of the above, a housing recess for housing the handle when the handle is lowered is formed. Therefore, when not in use, the handle can be housed in the housing recess, so that the handle is not obstructive, the appearance is good, and the hand is not inadvertently rotated.

Further, the fence main body is provided with an upper pulley and a lower pulley which are symmetrically paired with each other around the screw rod, and a cord is hung on each pair of pulleys. The rod is fixed to one side surface of the connecting member that moves up and down by rotating, and the other cord-like body is fixed to the other side surface of the connecting member.

Therefore, the connecting member can be prevented from tilting in the left-right direction and the front-back direction by the pair of cord-shaped bodies.

[Brief description of drawings]

1 to 17 show an embodiment of the present invention.
The figure shows a front view of a cross section of the main part of the footboard body, Fig. 2 is a perspective view of the bed fence, Fig. 3 is a perspective view of the footboard body, and Fig. 4 is a screw rod and a handle in a state where the handle is lowered. And FIG. 5 is a sectional view of the connecting structure between the screw rod and the handle in the same raised state, FIG. 6 is a sectional view taken along the line BB of FIG. 4, and FIG. Is a cross-sectional view taken along the line CC of FIG.
The figure is a perspective view of the handle shaft, FIG. 9 is a side view of the lower end portion of the same, FIG. 10 is a plan view of the stopper spring, and FIG. 11 is a cross-sectional view of one end portion in the width direction of the footboard body.
Similarly, the figure is a transverse cross-sectional view of the central portion in the width direction, FIG. 13 is a front view in which a main part of the headboard body is cross-sectioned, FIG. 14 is a vertical cross-sectional view of a bed fence, and FIG. 15 is a cross-sectional view of a connecting shaft. 16 is a sectional view taken along the line D-D in FIG. 15, FIG. 17 is a sectional view in which the connecting shaft is disassembled, and FIG. 18 is a perspective view of a bed fence showing another embodiment of the present invention. FIG. 19 is a front view in which a main part of the board body is also sectioned. 12, 16 ... Board frame (fence main body), 18 ... Fixed support, 42 ... Telescopic support, 44 ... Horizontal rod member (connecting member), 56 ... Nut body, 58 ... Screw rod,
70 ... Handle shaft, 78 ... Housing recess, 80 ...
…handle.

Claims (1)

[Scope of utility model registration request] 1. A fence main body having at least an upper horizontal rail member and a lower horizontal rail member facing each other in the vertical direction, and a pair of fixed columns provided at both ends of these members in the vertical direction. A telescopic column provided on each fixed column so as to be slidable in the vertical direction, and a screw rod rotatably supported in the vertical direction at an intermediate portion in the longitudinal direction between the upper horizontal beam member and the lower horizontal beam member. , A nut body screwed to the screw rod, the nut body and the expansion support column are connected to each other to hold the nut body unrotatable and to rotate the screw rod to the screw rod of the nut body. A connecting member for interlocking the telescopic column with vertical movement along the same; a handle shaft slidably connected to the upper end of the screw rod along the axial direction; A handle whose one end is connected to the upper portion of the handle shaft at a substantially right angle, and a housing recess formed in the upper end surface of the fence body for housing the handle by lowering the handle shaft from a raised state, A pair of upper and lower pulleys are provided symmetrically around the screw rod on the upper and lower horizontal rail members, respectively, and a pair of upper and lower pulleys have a middle portion. A first cord-like member that is hung and fixed at one side surface of the connecting member, and an intermediate portion is hung between the other pair of upper pulley and lower pulley, and both ends are fixed at the other side surface of the connecting member. And a second cord-shaped body that has been formed.