JP2000023783A - Stepless bending position controlling mechanism for bottom in gatch bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To steplessly move and control a bend of a curved bottom arranged at a position corresponding to e.g. knee joints of a bottom of a bed, etc., by fitting it to the physique of a user. SOLUTION: A knee bottom 1a and a leg bottom 1b are connected with each other through a curved bottom 2 and a stepless bending position controlling mechanism 3 for moving in the longer direction of a bottom and controlling the bending position of the curved bottom 2 are provided on the underside of the curved bottom 2. This controlling mechanism 3 freely movably back and forth holds a knee side slide fitment 6 from the knee bottom 1a side and a leg side slide fitment 7 from the leg bottom 1b side on guide frames 4 and 5 provided in parallel along the longer direction of the bottom on the knee bottom 1a and the leg bottom 1b adjoining to the curved bottom 2. These knee side slide fitment 6 and leg side slide fitment 7 are connected with each other so as to be bent and a restraining means 8 for restraining and freely movably releasing to the guide frames 4 and 5 is provided on the leg side slide fitment 7 side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed and the like, in which, for example, a bending point of a curved bottom disposed at a position corresponding to a knee joint can be steplessly adjusted in accordance with a user's physique. The present invention relates to a stepless bending position adjusting mechanism for a bottom of a gatch bed.

[0002]

2. Description of the Related Art In recent years, gatch beds (beds having a function of raising the back and raising the knees) have been widely used regardless of whether they are for hospitals or homes. Such a gatch bed is usually configured such that the back bottom, the waist bottom, the knee bottom, and the foot bottom, which are hinged, are sequentially raised and raised by the bottom raising and lowering mechanism, and each is adjusted to a desired inclination angle. I have. Therefore, since the divided bottoms are connected by hinges, the bending positions are determined and often do not match the bending positions of the user's body, and thus, the comfort is not one step better. Therefore, even if the knee soles and the bent positions of the knee bottoms and the foot bottoms have recently shifted, the knee bottoms and the foot bottoms can be curved with an appropriate curvature in order to reduce the load on the knee soles as much as possible. A configuration in which a curved bottom is arranged has been proposed. In addition, there has been proposed a device in which a bending position between a knee bottom and a foot bottom is adjusted stepwise.

[0003]

However, in practice, it is not enough, and when a bed with extremely short or tall people is used, the bending position cannot follow the position behind the knee. Yes, there is room for improvement. The present invention has been proposed in order to improve such a problem, the bottom of a bed or the like, for example, disposed at a position corresponding to the knee joint, the bending point of the curved bottom according to the user's physique. It is an object of the present invention to provide a stepless bending position adjusting mechanism for a bottom of a gatch bed that can be adjusted steplessly.

[0004]

In order to solve the above-mentioned problems, the present invention arranges a curved bottom configured to bend at an appropriate curvature at a bent portion of a bottom of a bed that performs a gatch operation. On the back surface of the curved bottom, there is an adjusting member held so as to be able to move forward and backward from the adjacent bottom side, and these adjusting members are flexibly connected while abutting each other on the curved bottom, so that the adjusting member can be moved in the bottom longitudinal direction. At the same time, the restraint means is provided on the bottom side to adjust the position of the connecting portion between the two adjusting members, thereby providing a restraining means capable of adjusting the bent portion of the curved bottom. Further, according to the present invention, in a bed that performs a gatch operation, a curved bottom configured to bend at an appropriate curvature is arranged between a knee bottom and a foot bottom, and the knee bottom and the foot bottom are arranged along the bottom longitudinal direction. A guide frame parallel to each other at a predetermined interval, and a knee-side slide bracket held in the guide frame from the knee bottom side to the curved bottom side so as to be able to advance and retreat, and the foot bottom side. From the bottom to the curved bottom side, a foot-side slide fitting held in a guide frame such that the knee-side slide fitting and the foot-side slide fitting are bendably connected to each other, and are connected to the guide frame. By moving along the guide frame and constraining it to the guide frame, the position of the connecting point between the knee-side slide bracket and the foot-side slide bracket can be adjusted, and the bending point of the curved bottom can be adjusted. It was to provide a restraint means. Also,
In the knee-side slide bracket and the foot-side slide bracket, connecting portions of the knee-side slide bracket and the foot-side slide bracket are configured to be curved and connected to each other by a shaft member so as to be bendable. When the knee-side slide bracket and the foot-side slide bracket are bent, the bent portion of the curved bottom forms an appropriate curved surface. Further, the foot-side slide fitting is constituted by a pair of longitudinal frames and a horizontal axis connecting these longitudinal frames, and a restraining means is connected to a rear end side of the longitudinal frames. A stopper frame disposed so as to extend over the rear end side of the longitudinal frame, the stopper frame includes a support shaft extending over the rear end side of the longitudinal frame, and a lever for displaceably operating the support shaft. And at both ends of the support shaft,
The eccentric cam is attached, and the eccentric cam is configured to be surrounded by an elastic pressure contact. The eccentric cam and the elastic pressure contact form a support shaft in the stopper frame,
When wrapped around the rear end of the longitudinal frame, it is positioned inside the longitudinal frame, interposed in the guide frame, and the bulging direction of the eccentric cam is aligned with the tip direction of the lever. When the lever is displaced about a support shaft,
The elastic pressing member is pressed through the bulging portion of the eccentric cam to restrain the knee-side slide bracket and the foot-side slide bracket on the guide frame.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the accompanying drawings showing one embodiment.
FIG. 1 shows a knee bottom 1a for supporting the thigh and a foot bottom 1 for supporting the shin among the bottoms 1 of the gatch bed.
b, the knee bottom 1a and the foot bottom 1b are connected by a curved bottom 2 configured to bend to one side only at several places. The curved bottom 2
Although a detailed structure is not shown, for example, a plurality of narrow synthetic resin strip-shaped bottoms are sequentially bent with the lower surface side in the drawing, so that a curved state having a predetermined curvature as a whole is obtained. It is configured to be connected so that

On the back side of the curved bottom 2, there is provided a stepless bending position adjusting mechanism 3 (hereinafter, adjusting mechanism 3) for moving in the longitudinal direction of the bottom to adjust the bending position of the curved bottom 2. I have. Here, the bending of the curved bottom 2 does not mean that the curved bottom 2 is in a curved state with a constant curvature, but restricts the curved state of other places, while locally increasing the degree of bending. State. The adjusting mechanism 3 is movable from the knee bottom 1a side to guide frames 4 and 5 provided on the knee bottom 1a and the foot bottom 1b adjacent to the curved bottom 2 in parallel with each other along the bottom longitudinal direction. Has a knee-side slide fitting 6 held therein. On the other hand, the guide frame 5 from the foot bottom 1b side.
Has a foot-side slide fitting 7 which is held so as to be able to advance and retreat along. The knee-side slide member 6 and the foot-side slide member 7 are connected to each other so as to be bendable. The configuration is such that the restraining means 8 is provided (see FIG. 2).

In the guide frames 4 and 5, the knee bottom 1
The guide frame 4 attached to the a side has a square cross-sectional frame portion 4a that allows the knee-side slide fitting 6 to be freely inserted and removed,
The guide frame 5 attached to the foot bottom 1b side holds the foot side slide fitting 7 so as to be able to be taken in and out, and also has the restraining means 8
5a having a U-shaped cross-section with openings on the sides facing each other in the bottom width direction in order to movably hold
(See FIG. 3).

Next, in the knee-side slide fitting 6 and the foot-side slide fitting 7, the knee-side slide fitting 6 and the foot-side slide fitting 7 are connected to each other at the abutting end portion, which is a connecting portion, by bending the curved bottom 2. A shaft member 1 having a head 9 with a relatively large diameter, which is curved to each other so as to determine the position.
It is connected to bendable by 0. That is, when the knee-side slide fitting 6 and the foot-side slide fitting 7 are bent around the shaft member 10 as a bending center, a bent portion of the curved bottom 2 is locally formed. In addition, the knee slide member 6 is a pair of U-shaped frames in which a connection portion with the foot slide member 7 is curved, while the foot slide member 7 is a connection portion with the knee slide member 6. A longitudinal frame 7a which is a pair of U-shaped frames in which
a is connected to the horizontal axis 7b.

The restraining means 8 is attached to the rear end of the longitudinal frame 7a of the foot-side slide fitting 7, and the restraining means 8 is attached to the rear ends of the two longitudinal frames 7a. A stopper frame 12 is provided so as to extend over the formed U-shaped notch 11. The stopper frame 12 has a support shaft 12a spanned between U-shaped notches 11 on the rear end side of the longitudinal frame 7a, and a U-shaped lever 12b coupled to the support shaft 12a. I have. Eccentric cams 13 are attached to both ends of the support shaft 12a, and rubber press contacts 14 are mounted on the eccentric cams 13 so as to surround the eccentric cams 13. The press contactor 14 has a square shape, and has a fitting hole 14a for fitting and holding the eccentric cam 13 at the center. The eccentric cam 13 and the pressure contact 14 are
The support shaft 12a of the stopper frame 12 is
a when crossed over the U-shaped notch 11 on the rear end side of a
It is located inside the folded back in the longitudinal frame 7a,
It is arranged to be interposed in the guide frame 5 on the foot bottom 1b side (see FIG. 4). The bulging direction of the eccentric cam 13 is directed to the mounting direction of the lever 12b with respect to the support shaft 12a.

In the adjustment mechanism 3 for the curved bottom 2 as described above, the knee-side slide fitting 6 and the foot-side slide fitting 7 are provided on the guide frames 4 and 5 provided on the knee bottom 1a and the foot bottom 1b adjacent to the curved bottom 2. In a desired position, first, the entire bottom is flattened, and the lever 12b of the stopper frame 12 is held parallel to the guide frames 4 and 5 (see FIG. 4). When the lever 12b is displaced downward by moving the foot 6 and the foot-side slide fitting 7, the bulging side of the eccentric cam 13 is displaced in the inclination direction of the lever 12b, and the eccentric cam 1 is displaced.
Since the bulging side of 3 presses the pressure contact 14 surrounding the eccentric cam 13, the pressure contact 14 is pressed against the guide frame 5, whereby the knee slide 6 and the foot slide 7 can be restrained. (See FIG. 5). At this time, the position of the head 9 of the shaft member 10, which is the connection point between the knee-side slide member 6 and the foot-side slide member 7, is the bent portion. Therefore, the curved bottom 2 is curved by raising the knee, but the connection between the knee-side slide fitting 6 and the foot-side slide fitting 7 is appropriately curved, and the lower surface of the curved bottom 2 is When the head 9 comes into contact, a bent portion is formed as an appropriate bending curve. in this way,
Just by operating the lever 12b of the stopper frame 12, the position of the bent portion is set closer to the foot bottom 1b for a relatively tall person (see FIG. 1). It can be adjusted steplessly with a width of about 100 mm, such as closer to the side of the knee bottom 1a (see FIG. 6), and the height difference of the user is about 40 cm in width and fits the knee joint of the user. Can be achieved.

[0011]

As described above, according to the present invention, the bending position of the back of the knee can be adjusted steplessly by the restraining means, and a complicated adjusting mechanism is not required, and the operation is simple. It can be said that there is a special effect, and it can be said that the bed is excellent in operability and usability.

[0012]

[Brief description of the drawings]

FIG. 1 is a bottom view of a bed to which a stepless bending position adjusting mechanism according to the present invention is applied, showing a bending position of a curved bottom when a user is a relatively tall person. It is.

2 is applied to the bottom of the bed shown in FIG. 1,
It is an external appearance perspective explanatory view of a stepless bending position adjustment mechanism.

FIG. 3 is an exploded perspective view showing a configuration of a stepless bending position adjusting mechanism in FIG. 2;

FIG. 4 is a schematic side view for explaining the operation of the restraining means of the stepless bending position adjusting mechanism for the bottom shown in FIG. 2;

FIG. 5 is a schematic side view for explaining the operation of the restraining means of the stepless bending position adjusting mechanism shown in FIG. 2;

FIG. 6 is a side view of a main part of the bottom, showing a bending position of the curved bottom when the user is a relatively short person.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom 1a Knee bottom 1b Foot bottom 2 Curved bottom 3 Adjusting mechanism 4, 5 Guide frame 4a Square frame part 5a U-shaped frame part 6 Knee side slide metal fitting 7 Foot side slide metal fitting 7a Longitudinal frame 7b Horizontal axis 8 Restraining means 9 Head DESCRIPTION OF SYMBOLS 10 Shaft member 11 U-shaped notch 12 Stopper frame 12a Support shaft 12b Lever 13 Eccentric cam 14 Pressure contact 14a Fitting hole

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[Procedure amendment]

[Submission date] April 27, 1999 (1999.4.2
7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problem, the present invention provides a curved bottom which is configured to bend at an appropriate curvature between a knee bottom and a foot bottom in a bed performing a gatch operation. Are arranged on the knee bottom and the foot bottom, along the longitudinal direction of the bottom, with guide frames extending in parallel with each other at a predetermined interval, and from the knee bottom side toward the curved bottom side, the guide frames are arranged. and knee-side sliding bracket which is rotatably held forward and backward in toward the curved bottom side of the leg bottom side, with freely retained provided with foot-side slide bracket back and forth on the guide frame, these knee-side sliding bracket and foot-side slide Metal fittings can be bent to each other
Connect, knee side slide bracket and foot side along the guide frame
In the guide frame together with the movement operation with the slide bracket
To restrain the knee-side slide bracket and the foot-side slide bracket.
Bundling means is provided, and the restraining means enables the
It is moved along the foot-side slide bracket to guide frame knee side
Check the position of the connection between the slide bracket and the foot-side slide bracket.
And adjust the knee side slide bracket and foot side slide by the restraining means.
Ride fittings are constrained and the connection point is
It was a bent part. In the above configuration, the foot-side slide metal
The tool is composed of a pair of long frames and a horizontal axis connecting these long frames.
It is configured, connecting the restraining means to the rear end side of the longitudinal frame,
This restraining means extends over the rear ends of the two longitudinal frames.
The stopper frame is arranged so that
The frame includes a support shaft extending over the rear end of the longitudinal frame,
A lever for operating the support shaft so as to be displaceable,
Eccentric cams are attached to both ends of the spindle,
The eccentric cam is configured to be surrounded by an elastic pressure contact
The eccentric cam and the elastic pressure contact
The support shaft of the arm was extended over the rear end of the longitudinal frame.
When positioning the guide frame, place it inside the longitudinal frame.
In the direction of bulging of the eccentric cam and the tip of the lever.
By matching the direction, the lever is centered on the support shaft.
When displaced, the elastic pressure is
Press the contact and place the knee-side slide bracket and
And the foot-side slide bracket is restrained .

Claims (4)

[Claims] 1. A curved bottom configured to bend at an appropriate curvature is disposed at a bent portion of a bottom of a bed that performs a gatch operation, and is held on a back surface of the curved bottom so as to be able to advance and retreat from an adjacent bottom side. It has an adjusting member, these adjusting members are connected to each other so as to bend while being in contact with the curved bottom, and the adjusting member is movable in the longitudinal direction of the bottom, and is restrained on the bottom side. A stepless bending position adjustment mechanism for a bottom of a gatch bed, characterized by providing a restraining means for adjusting the position of the connection point to adjust the bending point of the curved bottom. 2. A bed for performing a gatch operation,
A curved bottom configured to bend at an appropriate curvature is arranged between the knee bottom and the foot bottom, and the knee bottom and the foot bottom are parallel to each other at predetermined intervals along the bottom longitudinal direction. At the same time, the frames are respectively extended, and the knee-side slide brackets are held on the guide frame so as to be able to move forward and backward from the knee bottom side toward the curved bottom side, and advance and retreat to the guide frame from the foot bottom side toward the curved bottom side. The knee slide and the foot slide are flexibly connected to each other, and are moved along the guide frame to be restrained by the guide frame. Wherein the position of the connecting portion between the knee-side sliding bracket and the foot-side sliding bracket is adjusted to provide a restraining means capable of adjusting the bent portion of the curved bottom. Definitive bottom steplessly bending position adjusting mechanism. 3. The knee-side slide bracket and the foot-side slide bracket are configured such that connecting portions of the knee-side slide bracket and the foot-side slide bracket are mutually curved and bendably connected by a shaft member. 3. The gatch bed according to claim 2, wherein the bent portion of the curved bottom forms an appropriate curved surface when the knee-side slide bracket and the foot-side slide bracket are bent around the shaft member as a bending center. Stepless bending position adjustment mechanism at the bottom. 4. The foot-side slide fitting is constituted by a pair of longitudinal frames and a horizontal axis connecting these longitudinal frames, and a restraining means is connected to a rear end side of the longitudinal frames.
It has a stopper frame arranged so as to bridge over the rear ends of the two longitudinal frames, the stopper frame operates with a support shaft which bridges over the rear ends of the long frames, and a displaceable operation of the support shaft. And an eccentric cam is attached to both ends of the support shaft, and the eccentric cam is configured to be surrounded by an elastic pressure contact. The eccentric cam and the elastic pressure contact are provided on the stopper frame. When the support shaft is hung over the rear end side of the longitudinal frame, it is positioned inside the longitudinal frame, interposed in the guide frame, and the bulging direction of the eccentric cam and the tip direction of the lever are adjusted. By making them coincide with each other, when the lever is displaced about the support shaft, the elastic pressure contact is pressed through the bulging portion of the eccentric cam,
The mechanism for adjusting the bottom stepless bending position of a gatch bed according to claim 2 or 3, wherein the knee slide member and the foot slide member are restrained by the guide frame.