JPH064760Y2 - Sleeper fence - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a bed fence used for a bed.

(Prior Art) As for a bed used as an examination table or a treatment table, one that can adjust the height of a bed frame on which the bedding is placed at the time of examination and treatment is widely used. There are various types of adjusting devices for adjusting the height of the bed frame,
For example, as shown in Japanese Utility Model Publication No. 56-13809, a leg member is provided so as to be extendable and contractible.

This relates to the bed fences attached to the head side and foot side of the bed frame. The legs are elastically inserted into the pillar pipes on both sides of the fence, and a lead screw is installed between the cross rail members of the fence. Then, a moving member having an internal thread to be screwed with the lead screw is provided outside the lead screw, and a wire lead-out portion and a wire lead-out pulley are provided at opposite positions at the lower part of the strut pipe, and at the upper part of the leg body. While fixing one end of the wire, the wire
After the wire is pulled out from the wire lead-out portion by the wire lead-out constant pulley, it is turned in the moving direction of the moving member by the turning constant pulley provided below the lead screw, and the other end is fixed to the moving member. Then, by turning the drive handle to rotate the lead screw and moving the moving member upward along the lead screw,
As one end of the wire moves upward, the other end moves downward, so that the leg body is extended from the support pipe. On the contrary, the leg is shortened into the support pipe by moving the moving member downward. Therefore, if this bed fence is used as a bed, the height of the bed can be easily changed and the bed can be tilted.

(Problems to be solved by the invention) However, in the bed rail with the above-mentioned configuration, since the legs are made to expand and contract by the wires, when used,
Since the wire is designed to support the entire load, a large tension is always applied to the wire. Therefore, in a long-term use, the tension applied to the wire causes the wire to stretch and the legs cannot be moved smoothly.
Further, when the user is positioned particularly long on one side in the width direction of the bed frame, more load is applied to one side in the width direction of the bed fence, which may cause the left and right wires to stretch differently. In such a case, there is a problem in that the degree of expansion and contraction of the left and right legs from the inside of the support pipe is different between the left and right, and the floor of the bed is inclined in the width direction.

Further, since a large tension is constantly applied to the wire, there is a problem in durability of the wire. In addition, when there is a step or some obstacle on the floor when moving the bed, and the bed must be lifted upwards, the bed rail with the above-mentioned configuration should hold the support pipe upwards. Even if the legs are pulled up, the legs do not move upwards accordingly, and the legs are always kept in contact with the floor surface, which makes it difficult to move the bed.

The present invention has been made based on the above circumstances, and the purpose thereof is to easily adjust the height of the bed and
The purpose is to provide a bed fence that can be tilted. Further, another object is to provide a bed fence which can surely perform the above-mentioned operation smoothly and has excellent durability. Another object of the present invention is to provide a bed fence in which, even when the bed is lifted up, the bed fence is also lifted up accordingly and the bed can be lifted and moved.

(Means and Actions for Solving the Problem) In order to achieve the above-mentioned object, the present invention provides a screw rod rotatably between upper and lower horizontal rail members connecting fixed struts on both left and right sides, and in the fixed struts, A vertically extending telescopic column is provided, and a horizontal rod portion provided with a screw portion that is screwed with the screw rod is connected between the telescopic columns, and a gas spring is provided in the telescopic column. Is attached to a fixed strut, a pair of first guide bodies, which are pulleys, are provided below the upper horizontal rail member, and a pair of second guide bodies, which are pulleys, are provided on the lower horizontal rail member. Both ends of a wire, which is a pair of cords, were attached to the horizontal rod portion, and a midway portion was engaged with the pulleys that were the first and second guide bodies to form a bed fence. Then, the bed fence is attached to both ends of the bed frame in the longitudinal direction to form a bed. The screw rod is operated by the handle provided on the upper end of the upper horizontal rail member, the horizontal rod portion provided with the screw portion screwed to the screw rod is moved up and down, and the telescopic column connected to the horizontal rod portion is fixed to the fixed column. By moving the inside vertically, it is possible to adjust the height of the bed frame and also to incline it. Further, the horizontal rod portion connected to the telescopic column is always symmetrically placed by the pair of cords in the vertical direction so that the same tension is applied in the vertical direction. , Moves smoothly in the fixed column without tilting. Also, when the telescopic column is extended, the load of the bed frame must be raised, but the labor of the bed can be reduced by the action of the gas spring. Further, since the telescopic column is connected to the horizontal rod portion provided with the screw portion screwed to the screw rod, it does not move within the fixed column unless the screw rod is rotated. Therefore, we made it possible to always maintain a stable height of the bed frame.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 in the figure is a bed fence according to the present invention. Telescopic struts 3 and 3 are provided on the fixed struts 2 and 2 on both the left and right sides of the fence 1 so as to be vertically extendable. The fixed column 2 has a substantially U-shaped cross section, and the telescopic column 3 has a rectangular tube shape.

A roller 4 is attached to the lower end of the telescopic column 3. The upper and lower positions of the telescopic columns 3 and 3 are connected by a horizontal rod 5. A screw portion 6 is provided at the center of the horizontal rod portion 5.

The upper positions of the fixed columns 2 and 2 are connected by an upper horizontal rail member 7, and the lower positions thereof are connected by a lower horizontal rail member 8 having a U-shape. A screw rod 9 is rotatably provided between the upper and lower horizontal rail members 7, 8. The screw rod 9
The threaded portion 6 provided at the central portion of the horizontal rod portion 5 is screwed into. The upper portion of the screw rod 9 is supported by a bearing 10 attached to the upper horizontal rail member 7, and the upper end of the screw rod 9 is attached to a handle 11 rotatably provided on the upper horizontal rail member 7. The lower horizontal rail member 8 is connected to the lower end.
It is supported by a bearing 12 mounted inside.

A pair of L metal fittings 13 is provided at a lower portion of the upper horizontal rail member 7 and at a position symmetrical with respect to the screw rod 9.
13 are attached with their directions reversed, and the L metal fittings 13,
A first pulley 1 serving as a first guide body 14 is provided at 13.
Four and four are provided rotatably in opposite directions to each other. Further, a pair of second pulleys 15 and 15 as the second guide body 15 are freely rotatable on the upper side of the lower horizontal rail member 8 and at symmetrical positions close to the fixed columns 2 and 2. It is provided in. Further, bolts 16 and 1 of appropriate length are provided on the front surface and the back surface of the horizontal rod portion 5 at positions symmetrical with respect to the screw portion 6 of the horizontal rod portion 5.
6, one end side of each of which is fixedly mounted on the horizontal rod portion 5. Further, a rectangular parallelepiped in which a through hole 17 is provided in the up-down direction on the front surface and the back surface of the horizontal rod portion 5 at symmetrical positions close to the fixed columns 2 and 2 of the horizontal rod portion 5. Each one of the receiving portions 18 and 18 having a shape is fixed.

The pair of wires 19 and 19 as the cord body 19 are formed with loops 20 and 20 on one end side.
The bolts 16 and 16 fixed to the horizontal rod portion 5 are inserted through 20 to attach one ends of the pair of wires 19 and 19 to the horizontal rod portion 5 and guide the wires 19 and 19 upward. , The middle part is engaged with the first pulleys 14 and 14 and turned downward, and the middle part is connected to the second pulleys 15 and 1.
5 to turn upward, and the other end side provided with the screw portions 21 and 21 is connected to the through holes 17 of the receiving portions 18 and 18,
17 from the lower side to the upper side,
The nuts 22 and 22 are screwed into 1 to adjust the length of the wires 19 and 19. If the wire 19 stretches and causes slack in the wire 19, rotate the nut 22 in the tightening direction to remove the slack in the wire 19,
The wire 19 should always be tensioned. Further, gas springs 23, 23 are provided upward in the expandable support columns 3, 3 having a rectangular tubular shape. The main body 24 of the gas spring 23 is inserted into the telescopic column 3 from above the telescopic column 3, and the lower end of the main body 24 is inserted into the pin 2.
It is fixed to the telescopic column 3 with 5, and the upper end of the main body 24 is fitted with the metal fitting 26.
The tip of the rod 27, which is fixed to the upper part of the fixed column 2, is fixed to the spacer 2
It is attached by means of a pin 29 together with 8, and the telescopic column 3 is urged in a direction in which it always extends with respect to the fixed column 2. Further, a guide metal fitting 30 having a U-shaped cross section is provided at the lower end of the fixed support column 2 so that the telescopic support column 3 can move smoothly inside the fixed support column 2. Further, a connecting tool 3 in which a pair of holes 31 and 31 are provided above and below the fixed support column 3
2, 32 are fixed outward.

Then, in the bed fence 1 having the above-mentioned configuration, the screw rod 9 is rotated by operating the handle 11, and the horizontal rod portion 5 provided with the screw portion 6 screwed to the screw rod 9 is moved downward, for example. Then, the horizontal rod 5
The telescopic struts 3 and 3 connected to move downward in the fixed struts 2 and 2, and the telescopic struts 3 and 3 are extended from the fixed struts 2 and 2. Conversely, if the handle 11 is operated to rotate the screw rod 9 in the opposite direction and move the horizontal rod 5 upward, the telescopic columns 3 and 3 connected to the horizontal rod 5 are fixed columns. The telescopic columns 2 and 2 are shortened into the fixed columns 2 and 2 by moving upward in the columns 2 and 2.

The pair of wires 19 and 19 as the cords are rotated in a direction in which the nuts 22 and 22 screwed into the screw portions 21 and 21 provided on one end side of the wires 19 and 19 are tightened to be always in a tensioned state. It is kept. Also, a pair of wires 1
Of the nine and nine, one side is provided on the front side of the bed fence 1 and the other side is provided on the back side.

Therefore, the horizontal rod portion 5 is provided with the pair of wires 19, 19
As a result, the vicinity of the screw portion 6 is pulled upward, and the vicinity of the end portion is pulled downward to maintain a horizontal state with good balance. Further, since the pair of wires 19 and 19 having the same length are provided at the symmetrical positions in the left-right direction of the horizontal rod portion 5, the overall balance is maintained, and one wire 19 in the front-back direction is the front surface. Since the wire 19 on the other side is provided on the back surface side, the wire is not biased to one side and the balance is maintained.

When the horizontal rod 5 and the telescopic columns 3, 3 are moved downward, for example, in FIG. 1, the left side of the horizontal rod 5 is slanted downward and the right side is slanted upward. When a large load is applied, the distance between the left side of the horizontal rod portion 5 and the lower horizontal rail member 8 becomes short with the screw portion 6 as a fulcrum,
The left wire 19 is connected to the one end side which is engaged with the bolt 16 and the first wire
The length between the two pulleys 14 and the length between the first pulley 14 and the second pulley 15 do not change, but the length between the second pulley 15 and the other end side provided with the screw portion 21 sags. It will be.

On the other hand, the right side of the horizontal rod portion 5 is inclined obliquely upward with the screw portion 6 as a fulcrum, so that the wire 19 on the right side is
The length between the first pulley 14 and the first pulley 14 engaged with and the length between the first pulley 14 and the second pulley 15 do not change, but the second pulley 15 and the screw portion 21 are provided. Tension is applied between the other ends to extend them.

However, since the wire 19 does not extend even when tension is applied, the right side of the horizontal rod portion 5 is maintained in a horizontal state without being inclined obliquely upward. Along with this, the left side of the horizontal rod portion 5 is also maintained in a horizontal state without tilting. Therefore, the horizontal rod portion 5 is moved downward while being always kept in a horizontal state by the pair of wires 19, 19.
Accordingly, the telescopic columns 3 and 3 are kept in a vertical state,
It is possible to move smoothly inside the fixed columns 2 and 2. Similarly, when the horizontal rod portion 5 moves upward, the horizontal rod portion 5 is always kept in a horizontal state, so the telescopic columns 3 and 3 are fixed columns 2, 3.
It is possible to move smoothly within 2. Further, in order to move the telescopic columns 3 and 3 in the vertical direction in the fixed columns 2 and 2, a screw portion 6 is provided on the horizontal rod portion 5 that connects the pair of telescopic columns 3 and 3, and the screw portion 6 is provided. Since it is configured to be screwed onto the screw rod 9, even if the fixed columns 2 and 2 are lifted, the telescopic columns 3 and 3 are also lifted together with the fixed columns 2 and 2, so the telescopic columns 3 and 3 are always on the floor. It is never grounded on the surface. In addition, load the screw rod 9
Also, since the structure is supported by the screw portion 6 of the horizontal rod 5, and the pair of telescopic columns 3, 3 are connected by the horizontal rod 5 to give rigidity, durability is higher than that of the conventional one. Excellent in. Then, as shown in FIG. 5, the bed fence 1 having the above-described configuration is provided on both sides of the bed frame 33 in the longitudinal direction, with the connecting tool 32 provided on the bed board 1 and the connecting tool 3 provided on the bed frame 33.
4 and the holes 31 and 3 provided in the connectors 32 and 34.
The bed is constructed by connecting the bolt 36 inserted into the cable 5 and the nut 37 screwed to the bolt. In this case, a method of detachably fixing with hooks and pins may be used.

When the horizontal rod 5 is moved downward to extend the telescopic columns 3 and 3 with respect to the fixed columns 2 and 2, the bed frame 3
3 and the mattress (not shown) placed on the bed frame 33, the telescopic columns 3, 3 must be extended against the weight of the user lying on the mattress, etc., so the screw rod 9 and the lateral rod portion A large load is applied to the screw portion 6 of 5. Therefore, conventionally, in order to rotate the screw rod 9, the handle 11 has to be turned with a large force. However, in the present invention, the gas springs 23, 23 are provided in the telescopic columns 3, 3.
Is provided and the end portion of the rod 27 led out from the main body 24 of the gas spring 23 is attached to the fixed support column 2 to constantly urge a force for pressing the telescopic support columns 3 and 3 downward. Therefore, even when the handle 11 is rotated to extend the telescopic columns 3 and 3 from the fixed columns 2 and 2, the handle 11 can be rotated with a relatively small force by the biasing force of the gas springs 23. It is possible to raise the bed frame 33. On the contrary, when shortening the telescopic columns 3 and 3 with respect to the fixed columns 2 and 2, the handle 11 is rotated against the downward biasing force of the gas springs 23 and 23, and the screw rod 9 is rotated to rotate the telescopic column 3. , 3 must be moved upwards in the fixed columns 2, 2.
As described above, since the bed frame 33, the mattress, or the weight of the user is added in the direction of shortening the telescopic columns 3 and 3, the handle is rotated with a relatively small force to rotate the screw rod 9 and the bed. Frame 33
Can be lowered.

In the present invention, as shown in FIG. 6, the bed frame 3
The height of the bed frame 33 is adjusted or tilted by operating the handles provided on the bed rails 1 attached to both longitudinal ends of the bed frame 33, so that the bed frame 33 can be adjusted according to the situation such as medical examination. Can be kept in an optimal state.
Further, in the above-mentioned embodiment, the bed fence 1 is shown only with the main constituent members of the bed fence 1, but in practice, the front surface and the back surface of the bed fence 1 are covered with a decorative plate or the like so as to form the bed. It is well formed. In the above embodiment, the pulley is used as the guide body and the wire is used as the cord body. However, the present invention is not limited to this. A sprocket may be used as the guide body and a chain may be used as the cord body.

(Effect of the Invention) As described above, according to the present invention, the screw rod is rotatably provided between the upper and lower horizontal rail members that connect the fixed struts on the left and right sides, and the telescopic struts are provided in the fixed struts so as to be vertically expandable and contractible. , A horizontal rod portion provided with a screw portion to be screwed with the screw rod is connected between the telescopic columns, a gas cylinder is provided in the telescopic column, and the tip of the rod of the gas cylinder is attached to a fixed column. The upper and lower horizontal rail members are respectively provided with first and second guide bodies, both ends of the cord body are attached to the horizontal rod portion, and the middle portion is the first portion. A bed fence was constructed by engaging with the first and second guide bodies.

Therefore, according to the bed constructed by attaching the bed fence having the above-described structure to both ends of the bed frame in the longitudinal direction, the height and the inclination of the bed frame can be easily adjusted. Also, the height of the bed frame and the tilting can be performed with relatively little effort.

Furthermore, even if the user is placed on one side in the width direction of the bed frame and a larger load is applied to one side of the expansion support of the bed fence than to the other side, both expansion support are smooth with respect to the fixed support. It has the advantage that it can be expanded and contracted, and that the bed frame can be adjusted in height and tilted smoothly without rattling.

[Brief description of drawings]

The drawing shows one embodiment of the present invention, FIG. 1 is a front view of a cross section of a bed fence, and FIGS. 2 and 3 are explanatory views showing an end portion of a cord attached to a lateral rod. FIG. 4 is a partial cross-sectional view taken along the line AA of FIG. 1, FIG. 5 is a perspective view of the bed using the bed fence according to the present invention, and FIG. 6 (a) shows the bed frame. FIG. 6 (b) is a side view of the bed with the bed frame lowered, FIG. 6 (b) is a side view of the bed with the bed frame raised, and FIG. 6 (c) is a side view of the bed with the bed frame tilted. ． Reference numeral 1 ... Sleeping fence 2 ... Fixed support 3 ... Telescopic support 5 ... Horizontal rod 6 ... Screw 7 ... Upper horizontal beam member 8 ... Lower horizontal beam member 9 ... Screw rod 11 ... Handle 14 …… First guide body (pulley) 15 …… Second guide body (pulley) 19 …… Rope body (wire) 24 …… Gas spring 33 …… Bed frame

Claims (1)

[Scope of utility model registration request] 1. Right and left fixed columns, upper and lower horizontal rail members connecting the fixed columns, and a screw rod rotatably provided between the upper and lower horizontal rail members in parallel with the fixed columns.
Telescopic columns provided on the left and right fixed columns so as to be capable of expanding and contracting in the vertical direction, a horizontal rod section provided with a screw section for connecting the telescopic columns and screwing with the screw rod, and provided in the telescopic column. A gas spring for urging the telescopic column in a direction to extend with respect to the fixed column, a pair of first guide bodies provided on the upper horizontal beam member, and a second pair of second guides provided on the lower horizontal beam member. A bed fence, comprising: a guide body; and a pair of cords, both ends of which are attached to the horizontal rod portion, and an intermediate portion of which is engaged with the first and second guide bodies.