JPH08393U - Bed having inclined back and leg receiving members - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a bed in which the inclination angle of the leg receiving member with respect to the inclination angle when the back receiving member is raised can be arbitrarily changed. In a bed in which a back support member and a leg support member are pivotally supported on both sides of a waist support member fixed to a bed frame, the back support member having a back pushing arm for supporting the back support member is supported. One end of an intermediate swing arm that swingably supports a moving arm and a leg swing arm having a leg push-up arm that supports a leg receiving member on the bed frame, and swingably supports the bed frame. A back swing arm via a connecting rod, and a leg swing arm on the other end of the intermediate swing arm via a connecting rod.
A rocking drive device is provided on any one of the back rocking arm, the leg rocking arm, and the intermediate rocking arm, and a continuous portion of the back rocking arm and the link and the leg rocking arm and the link. It is now possible to change the connection site of each to multiple positions.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bed provided with a back support member and a leg support member which are inclined on both sides of a fixed waist support member.

[0002]

[Prior art]

 There is known a bed in which a back support member and a leg support member are provided on both sides of a fixed waist support member so that they can be appropriately raised and raised.

In the above bed, in the device for raising the back portion receiving member and the leg portion receiving member by the drive means of the bed, it is natural to appropriately select the raising angle. Then, the driving may be stopped when the desired angles are reached.

However, in the device in which the driving means is one and the back receiving member and the leg receiving member are simultaneously raised, the inclination angle of the back receiving member and the inclination angle of the leg receiving member are different from each other. The ratio was always constant, and it was not possible to make the angle of the leg receiving member larger or smaller than the angle of inclination of the back receiving member.

[0005]

[Problems to be solved by the device]

 In view of the above points, the present invention aims to obtain a bed in which the inclination angle of the leg receiving member with respect to the inclination angle when the back receiving member is raised can be arbitrarily changed. .

[0006]

[Means for Solving the Problems]

 In a bed in which a back support member and a leg support member are pivotally supported on both sides of a waist support member fixed to a bed frame so as to be lifted, a back swing having a back pushing arm for supporting the back support member. One end of an intermediate swing arm that swingably supports the arm and a leg swing arm having a leg push-up arm that supports the leg receiving member on the bed frame and swingably on the bed frame. The back swing arm and the leg swing arm to the other end of the intermediate swing arm via the linkage, respectively.・ A swing drive device can be provided in any one of the intermediate swing arms, and the continuous portion of the back swing arm and the connecting rod and the connecting portion of the leg swing arm and the connecting rod can be changed to a plurality of positions, respectively. I did it.

[0007]

[Action]

 When the back support member / leg support member of the bed of the present invention is raised, the swing drive member is operated. When the rocking drive member is actuated, the connecting arm of the rocking drive member expands, the back rocking arm rocks, and the back receiving member is lifted via the back pushing rod. The swinging of the back swing arm swings the leg swing arm through the link rod, the intermediate swing arm, and the link rod, and pushes up the leg push-up rod integrated with it to raise the leg push-up rod. To raise.

The change in the elevation angle of the back receiving member and the leg receiving member is determined by the connecting portion of the back swing arm or the leg swing arm and the connecting rod. Therefore, if you want to raise the lifting angle of the leg receiving member relative to the back receiving member, make the connection part between the leg swing arm and the connecting rod close to the tip of the leg swing arm, or Place the connecting part of the connecting rod near the base of the back swing arm.

When it is desired to increase the elevation angle of the leg receiving member that is thighed by the back receiving member, the connecting rod is connected to the base of the leg swing arm. A connecting rod may be connected near the tip of the back swing arm.

[0010]

【Example】

 An embodiment of the bed 1 of the present invention will be described below with reference to the drawings.

The bed 1 of the present invention comprises a bed frame 2, a back receiving member 3, a waist receiving member 4, and a leg receiving member 5, and a pair of side frames 6 of the waist receiving member 4. 6 (one side frame 6 is not shown) are fixed to the side portions of the bed frame 2. The waist receiving member 4 is provided with beams 7 and 7 between both side frames 6 and 6 fixed to the bed frame 2 to form a frame body in an approximately square shape, and is located outside the beams 7 and 7 and has a round bar shape. Elastic locking members 8, 8 are provided between the side frames 6, 6 in parallel with the beams 7, 7.

The back receiving member 3 passes the receiving beam 11 between the base beam 9 and the tip beam 10, and the small arm 12 provided on the base beam 9 is attached to the side frame 6 of the waist receiving member 4 by the shaft 13. The back support member 3 is supported and can be tilted with respect to the waist support member 4.

The leg receiving member 5 includes an inclined receiving member 5a and a horizontal receiving member 5b. Like the waist receiving member 4, the inclined receiving member 5a is provided with a tip beam 15 and a base beam 16 between a pair of side frames 14 and 14 (one side frame 14 is omitted in the drawing). A receiving beam 17 is provided between them. By supporting the side frames 14, 14 on the side frame 6 of the waist receiving member 4 by the shaft 18, the tilt receiving member 5 a can be tilted with respect to the waist receiving member 4.

The horizontal receiving member 5 b has the same structure as the back receiving member 3, and a receiving beam 21 is provided between the base beam 19 and the tip beam 20, and the small arm 22 provided on the base beam 19 is provided with the inclined receiving member 5. The shaft 23 supports the side frame 14 of the member 5a. A swing arm 24 is provided between the lower part of the receiving beam 21 and the bed frame 2.

A plurality of band-shaped elastic bodies 25 are provided side by side through the back part receiving member 3, the waist part receiving member 4, and the leg part receiving member 5. The belt-like elastic body 25 is made of a woven or knitted fabric in which rubber threads or polyurethane elastic threads are woven or knitted, rubber or other elastic sheet-like material, and the hook 26 provided at the end thereof is used as an example shown in the figure. Then, it is locked to the tip beam 10 of the back receiving member 3 and the tip beam 15 of the inclined receiving member 5a of the leg receiving member 5, and in the middle portion, the elastic body locking member 8 provided on the waist receiving member 4, The lower part of 8 is slidably engaged with the elastic body locking members 8 and 8, and the upper beam of the base beam 9 of the back receiving member 3, the beam 7 of the waist receiving member 4 and the base beam 16 of the inclined receiving member 5a is engaged. By passing it through, the receiving surface is formed continuously from the back receiving member 3 to the leg receiving member 5 except for the portion in contact with the elastic body locking member 8.

In the horizontal receiving member 5b, the strip-shaped elastic body 27 is similarly locked between the base beam 19 and the tip beam 20.

The tilting device 29 of the tilt receiving member 5a of the back receiving member 3 and the leg receiving member 5 is configured as follows.

A swing drive device 32 is provided on a frame 31 that is integral with the legs 30 that support the frame 2. The rocking drive device 32 projects or retracts the telescopic arm 33 from the device 32 by an appropriate means such as a motor or fluid. The telescopic arm 33 is connected to the back rocking arm 35 via a connecting arm 34. Has been done. A roll 36 is provided at the tip of the back swing arm 35, and the roll 36 is fixed to a back push-up arm 37 which is provided on the lower surface of the receiving beam 11 of the back receiving member 3.

Reference numeral 38 denotes a back swing arm provided with a leg pushing up arm 39 for raising the tilt receiving member 5 a of the leg receiving member 5, and is pivotally attached to the leg frame 31. A roll 40 is provided at the tip of the leg pushing up arm 39, and the roll 40 is in contact with the lower surface of the receiving beam 17 of the inclined receiving member 5a. The back swing arm 35 and the leg swing arm 38 are connected via the connecting rods 41 and 42 and the intermediate swing arm 43, and both swing in synchronization, and the back receiving member 3 and the tilt receiving member 5a are moved upward. To raise.

In the bed of the present invention, the rocking drive device 32 is operated to set the back receiving member 3 and the inclined receiving member 5a of the leg receiving member 5 to the horizontal position or the raised position. To move from the upper position shown in the figure to the horizontal position, the rocking drive device 32 is operated and the telescopic arm 33 is retracted into the rocking drive device 32. As a result, the back swing arm 35 swivels in the clockwise direction in FIG. 1 via the connecting arm 34 and lowers the back pushing arm 37, so that the roll 36 at the tip thereof is in contact with the receiving beam 11. After moving to the tip direction of the receiving beam 11, the back receiving member 3 turns in the clockwise direction around the shaft 13 and becomes horizontal. On the other hand, the turning movement of the back swing arm 35 in the clockwise direction is transmitted to the link rod 41, the intermediate swing arm 43, the link rod 42, and the leg swing arm 38, and the leg push-up arm 39 is rotated counterclockwise. As it rolls in the direction, the roll 40 at its tip moves to the tip of the receiving beam 17, and the tilt receiving member 5a of the leg receiving member 5 turns about the shaft 18 in the counterclockwise direction and becomes horizontal. At the same time, the horizontal receiving member 5b also descends, but since the tip end is supported by the swing arm 24, the horizontal receiving member 5b descends while maintaining the horizontal state. As the back receiving member 3 and the inclined receiving member 5a shift to the horizontal state, each of the receiving members

The raising angle of the leg receiving member 5a with respect to the back receiving member 3 can be arbitrarily changed. The closer the connection position between the leg swing arm 38 and the connecting rod 42 to the tip of the leg swing arm 38, the smaller the raising angle.

When the connecting portion of the back swing arm 35 and the connecting rod 41 is brought close to the base of the back swing arm 35, the elevation angle of the back receiving member 3 becomes large.

By raising the angle of elevation of the back receiving member and the leg receiving member by connecting the leg swing arm 38 and the connecting rod 42 or selecting the connecting portion of the back swing arm 35 and the connecting rod 41 arbitrarily. Can be changed.

The change of the connecting portion is performed by pulling out the pin 45 connecting the both and changing the position thereof. Further, when it is desired to raise only one of the back receiving member and the leg receiving member, the pin of one receiving member may be removed and the connection of the connecting rod may be cut off.

[0025]

[Effect of device]

 The bed of the present invention comprises a back receiving member fixed to the bed frame, and a back receiving member and a leg receiving member pivotably supported on both sides of the waist receiving member so that the back receiving member supports the back receiving member. An intermediate swing that swingably supports the back swing arm and a leg swing arm that has a leg pushing up arm that supports the leg receiving member on the bed frame, and swingably supports the bed frame. A back swing arm is pivotally supported at one end of the arm via a connecting rod, and a leg swing arm is pivotally supported at the other end of the intermediate swing arm via a connecting rod. Swing arm ・ A swing drive device is provided on any one of the middle swing arms, and the continuous part of the back swing arm and the connecting rod and the connecting part of the leg swing arm and the connecting rod are respectively provided at a plurality of positions. Since it can be changed, the elevation angle of the back support member and leg support member can be selected beforehand. It is possible to change it in advance or to change it freely, and once the raising angle of the leg receiving member with respect to the raising angle of the back receiving member is determined once, both members are always raised to that angle. Therefore, it is not necessary to operate both receiving members separately.

[Brief description of drawings]

FIG. 1 is a partial longitudinal side view of a bed according to the present invention.

FIG. 2 is a plan view of the bed of the present invention in a partially cutaway state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bed 3 Back receiving member 4 Waist receiving member 5 Leg receiving member 5a Incline receiving member 5b Horizontal receiving member 32 Swing drive device 34 Connecting arm 35 Back swing arm 37 Back push-up arm 38 Leg swing arm 39 Leg push-up Arms 41, 42 Connecting rod 43 Intermediate swing arm 45 Pin

Claims (1)

[Scope of utility model registration request] 1. A bed comprising a back receiving member and a leg receiving member pivotably supported on both sides of a waist receiving member fixed to a bed frame, and a back pushing arm for supporting the back receiving member. An intermediate rocking arm in which a back rocking arm and a leg rocking arm having a leg pushing up arm that supports a leg receiving member are rockably supported by a bed frame, and are rockably supported by the bed frame. The back swing arm and the leg swing arm at the other end of the intermediate swing arm and the leg swing arm at the other end of the intermediate swing arm and the swing rod, respectively. A swing drive device is provided on either one of the moving arm and the intermediate swing arm, and the continuous portion of the back swing arm and the connecting rod and the connecting portion of the leg swing arm and the connecting rod are respectively changed to a plurality of positions. A bed having an inclined back receiving member / leg receiving member characterized by being able to do so.