JP2000004985A - Chair bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To convert a chair bed from a bed to chair or a chair to bed by almost one touch by equipping a grip on a axis pivotally combined with a frame and forming a dent part facing the grip to make the grip easily gripped for bringing up the axis. SOLUTION: An axis 33 to rotatably combine an up/down frame 2 and an intermediate frame 5 constitutes a thick lateral axis extended across almost the whole width of frame 2, 5. A grip 31 is equipped at about the central part in the axis direction of the axis 33. Cut-off hollow parts 35, 36 facing the grip 34 are formed on a mat 8 on the up/down frame 2 and a mat 10 on the intermediate frame 5 respectively to enable an attendant to insert a hand into the hollow parts 35, 36 to grip the grip 34. When a fixed lock condition of the up/down frame 2 is released and the grip 34 is gripped, the axis 33 is brought up to fold the intermediate frame 5 and the up.down frame 2 in s chevron shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed used as a chair by an attendant in a hospital or a welfare facility.

[0002]

2. Description of the Related Art Various types of beds have been proposed as chairs, for example, a front mat, an intermediate mat and a rear mat.
The mats are connected to each other and the bed is constructed with the three mats spread on the same plane, while the front mat and the intermediate mat are bent in the shape of a mountain, and the rear mat is used to seat the seat. 2. Description of the Related Art There has been known a bed which is formed as a chair that also forms a backrest portion by an intermediate mat.

[0003]

The prior art not only has a complicated structure, but also has a task of performing a transformation from a bed to a chair and a task of performing a transformation from a chair to a bed. Are extremely complicated. In particular, complicated work requires a long time to complete, and is not suitable for use by an attendant. Therefore, there is a long-awaited need for a bed that can be used as a chair that can be completed with almost one touch.

[0004] By the way, a bed that can be used as a chair can be easily used as a bed by an attendant when going to bed, but can be easily used as a chair after getting up. While it is preferable to be able to easily move to a desired place and store blankets and pillows used at bedtime,
No such function is provided.

[0005] Further, it is desirable that a bed which is also used as a chair for an attendant use has a simple appearance and does not expose the internal mechanism. However, the prior art does not take this point into consideration.

[0006]

Therefore, in order to solve the above-mentioned problems, the present invention is configured as a first means, which comprises an up-and-down rotatable pivotally connected to an installation table installed on a floor surface. The frame, the traveling frame provided on a self-propelled traveling platform, and the intermediate frame installed between the undulating frame and the traveling frame are connected to each other, and a mat is mounted on each frame. In a state in which the bed is configured in a state where the undulating frame, the intermediate frame, and the traveling frame are unfolded on substantially the same plane, the traveling table is inserted inside the installation table, and the undulating frame and the intermediate frame are bent in a mountain shape, In a bed that also serves as a chair in which a seat is formed by a traveling frame and a backrest is formed by an intermediate frame, an up-and-down frame and an intermediate frame are used. Binding was provided with a grip pivot, a recess facing the mat mats and intermediate frame undulations frame to the grip, in that formed by freely configure lift the pivot by gripping the grip.

Further, the present invention is configured as a second means, in which an up-and-down frame pivotally connected to an installation table installed on the floor surface so as to be freely rotatable and a traveling table capable of self-propelling on the floor surface. The traveling frame provided and the intermediate frame installed between the undulating frame and the traveling frame are connected to each other, and a mat is mounted on each frame, and the undulating frame, the intermediate frame, and the traveling frame are substantially flush with each other. The bed is configured in a state where the bed is extended, the traveling platform is inserted into the inside of the installation table, and the undulating frame and the intermediate frame are bent in a mountain shape. In a bed that also serves as a chair forming a part, the chair is constructed by turning up and down an up-and-down frame. A locking device for fixing locking undulations frame the upright posture state provided relative to the base, lies in comprising provided foot pedal to release the locked state to the rear of the installation base of the lock device.

Further, the present invention is configured as a third means in that an up-and-down frame pivotally connected to an installation stand installed on the floor so as to be freely rotatable, and a traveling stand capable of free-running the floor. The traveling frame provided and the intermediate frame installed between the undulating frame and the traveling frame are connected to each other, and a mat is mounted on each frame, and the undulating frame, the intermediate frame, and the traveling frame are substantially flush with each other. The bed is configured in a state where the bed is extended, the traveling platform is inserted into the inside of the installation table, and the undulating frame and the intermediate frame are bent in a mountain shape. A bed that also serves as a chair forming a part, wherein the traveling platform has an extension arm extending opposite to the installation table, and an extension end of the extension arm It has established a wheel, in a state in which to configure the chair by allowed to enter the running board inside the installation base, lies in the wheel by forming a fulcrum of inclination of the chair in the installation base of the rear position.

[0009] It is preferable that the installation table is provided with protection plates on both sides, and a receiving space for receiving the traveling table is formed between the protection plates.

[0010] It is preferable that the traveling platform is provided with article storage means located below the traveling frame.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

The bed which is also used as a chair is used by selecting one of a state in which a bed is constructed as shown in FIGS. 1 to 3 and a state in which a chair is constructed as shown in FIG.

(Overall schematic configuration) Such a bed that also serves as a chair has an up-and-down frame 2 pivotally connected to an installation table 1 installed on the floor so as to be capable of standing up and rotating, and travels freely on the floor. The traveling frame 4 provided on the base 3 and the intermediate frame 5 erected between the undulating frame 2 and the traveling frame 4 are mutually pivotally connected 6 and 7, respectively, and mats are attached to the frames 2, 4 and 5, respectively. 8, 9, and 10 are mounted. Therefore, the undulating frame 2, the intermediate frame 5, and the traveling frame 4
In a state where the bed is spread out on substantially the same plane, a bed as shown in FIG. 1 is formed, while the traveling platform 3 is inserted into the inside of the installation platform 1 and the undulating frame 2 and the intermediate frame 5 are bent into a mountain shape. In this state, a chair is formed in which a seat is formed by the mat 9 of the running frame 4 and a backrest is formed by the mat 10 of the intermediate frame 5 as shown in FIG.

(Configuration of Installation Table) The installation table 1 has, as shown in FIG. 8, a structure in which side frames 12, 12 framed by a pair of leg seats 11, 11, which are arranged in parallel, stand upright. A receiving space S of the traveling platform 3 is formed between the pair of side frames 12. Each side frame 12
Is a front vertical frame 13 erected on the leg seat 11, respectively,
A vertical frame 14 having a rear vertical frame 14, and a horizontal frame 15 extending substantially horizontally from the vicinity of the top end of the front vertical frame 13 is connected to the top end of the rear vertical frame 14. Horizontal frame 1 extending beyond
The support portion 15a is formed by the extension end of the fifth portion. Note that in this specification, the term “front” means a direction toward the traveling platform 3 as viewed from the installation table 1, and the term “rear” means an opposite direction.

The pair of side frames 12, 12 are formed by connecting the front vertical frames 13, 13 to each other in the vicinity of the lower end.
And the rear vertical frames 14 and 14 are connected to each other by a pair of upper and lower rear beams 17 and 18. A stopper 19 (see FIG. 1) is provided on the front surface of the front beam 16. For a locking device to be described later, a pair of brackets 20 and 20 are erected on the upper rear beam 17, and guide members 21 are provided between the pair of brackets 20 and 20 on the upper and lower rear beams 17 and 18. Is fixed. Then, as shown in FIG. 1, a protection plate 22 is attached to the outside of the pair of side frames 12.

The undulating frame 2 has a frame structure for mounting and supporting the mat 8, and the tongue pieces 2 provided on both sides near the rear end.
3 and 23 are connected to the supporting portions 15a and 15a by a pivot 24 (FIG. 4).
(See (B)). Therefore, the hoisting frame 2 is rotatable about the pivot 24 as a fulcrum.

(Structure of Traveling Platform) As shown in FIG. 8, the traveling platform 3 has a pair of substantially L-shaped support frames 25 in which a horizontal portion 25b is extended from an upper end of an upright portion 25a. At the same time, an extension arm 26 extending substantially parallel to the horizontal portion 25b from the lower end of the upright portion 25a is provided.
And the extension arm 26 are connected by a column 27, and the pair of extension arms 26, 26 are connected by horizontal rods 28, 29 near the front and rear ends. A small wheel 30a is pivotally supported at the front end of the pair of extension arms 26, 26, and a small wheel 30b is pivotally supported at the rear end, thereby allowing the traveling platform 3 to be free-running on the floor surface. .

The traveling platform 3 can enter into the receiving space S of the mounting platform 1 by self-propelling, and as shown in FIG. Contact 27. In this state, the length of the extension arm 26 is set so that the small wheel 30b on the rear side of the extension arm 26 of the traveling platform 3 is located slightly behind the rear end of the installation platform 1. That is, as shown in FIG. 1, the support 27 of the traveling stand 3 supports the rear small wheel 30b with respect to the length L1 from the stopper 19 of the installation base 1 to the rearmost portion (the rear end of the leg 11). Extension 26 of extension arm 26 extending to the axis
The length L2 of a is set to satisfy L1 <L2.

The traveling platform 3 is provided below the traveling frame 4 with an article storage means 31. In the case of the illustrated example, the article storage means 31 forms a basket made of a metal wire, and can store a blanket, a pillow and the like of an attendant.

The traveling frame 4 has a frame structure for mounting and supporting the mat 9 and is fixed to the horizontal portion 25b of the traveling platform 3.

(Structure of Intermediate Frame) Intermediate Frame 5
Has a frame structure on which the mat 10 is mounted and supported, and is installed between the up-and-down frame 2 of the installation table 1 and the traveling frame 4 of the traveling table 4 and is connected to each other. That is, the front end of the intermediate frame 5 is pivotally connected 7 to the rear end of the traveling frame 4, and the rear end of the intermediate frame 5 is pivotally connected to the front end of the undulating frame 2 within a predetermined angle range 6. Have been.

Accordingly, when the traveling platform 3 is inserted into the interior of the installation platform 1 and the undulating frame 2 and the intermediate frame 5 are bent in a mountain shape, a chair as shown in FIG. A substantially triangular space will be created between the bent undulating frame 2 and the intermediate frame 5, and substantially triangular closing plates are provided on both sides of the intermediate frame 5 so that the space can be substantially closed from the side. 32 are provided.

(Configuration of Grip) As shown in FIG. 2, a pivot 33 for pivotally connecting the undulating frame 2 and the intermediate frame 5 to each other so as to be rotatable relative to each other is a thick horizontal axis extending over almost the entire width of the frames 2, 5. And a grip 34 is provided substantially at the center of the pivot 33 in the axial direction. In the case of the illustrated example, the grip 34 is constituted by a cylindrical body extrapolated to the pivot 33, but the grip 34 may be constituted by the pivot 33 itself. The mat 8 of the undulating frame 2 and the mat 10 of the intermediate frame 5 are provided with cut-out recesses 35, 36 facing the grips 34, respectively. The grip 34 can be gripped by inserting the user's hand.

(Structure of the Locking Device) As shown in FIGS. 5 and 6, the tongue piece 23 of the undulating frame 2 that can freely undulate and rotate around the pivot 24 is substantially 90 degrees in the circumferential direction around the pivot 24. The first notch 37 and the second notch 3 are spaced apart by a degree.
8 are formed. That is, the first cutout portion 37 is positioned downward when the bed is configured with the undulating frame 2 substantially horizontal, and the second cutout portion 38 is positioned downward when the chair is configured with the undulating frame 2 raised. Have been.

Therefore, the notches 37, 3 positioned downward
8 to lock and lock the undulating frame 2
A pair of swing arms 40, 40 pivotably connected to each other 39.
Are respectively supported by brackets 20, 20, and the notches 37, 38 are provided at the free ends of the respective swing arms 40.
Is provided.

A driving rod 43 is inserted into the guide members 21 provided on the upper and lower rear beams 17, 18 so as to be vertically movable, and the upper end of the driving rod 43 is pivotally connected to the pair of swing arms 40, 40. It is connected to part 39. The drive rod 43 is always resiliently downwardly urged by a spring 44, and urges the swing arms 40, 40 so that the claw pieces 42 face upward. Arm part 4 of foot pedal 45 arranged at the rear of installation table 1
6 is pivotally connected 47 to the lower rear beam 18, and the distal end of the arm portion 46 is pivotally connected to the drive rod 43 via a long hole. Therefore, when the foot pedal 45 is depressed and moved downward, the distal end of the arm portion 46 is rotated upward, so that the drive rod 43 is moved upward, and the pivotal connecting portion 39 of the swing arms 40, 40 is pushed up. Then, the claw piece 42 is moved down to escape from the notches 37 and 38.

In the illustrated embodiment, the tongue piece 23 is formed with a pair of notches 37, the first notch 37 and the second notch 38. However, when the bed is constructed, it is not always necessary to fix and lock the undulating frame 2. Therefore, at least the second notch 38 may be provided so that the fixed lock can be performed only when the undulating frame 2 is erected.

(How to Use a Bed Combined with a Chair) As shown in FIGS. 1 and 2, when the undulating frame 2, the intermediate frame 5, and the traveling frame 4 are spread on substantially the same plane, three mats 8, 10, 9 are unfolded horizontally,
A bed is configured. At this time, the claw piece 42 is engaged with the first notch 37 of the tongue piece 23 of the undulating frame 2, and the undulating frame 2 is fixedly locked in a horizontal posture with respect to the installation table 1. This provides a bed for the attendant to go to bed. At the time of getting up, a blanket, a pillow and the like can be stored in the article storage means 31 of the traveling platform 3.

When the foot pedal 45 is depressed, the claw piece 42 comes off from the first notch 37 of the tongue piece 23 to release the fixed locked state of the undulating frame 2 and the grip 34.
When the pivot 33 is lifted by grasping, the intermediate frame 5 and the undulating frame 2 are bent into a mountain shape. That is, the undulating frame 2 rotates upright with respect to the installation table 1 with the pivot 24 as a fulcrum together with the tongue piece 23, and the intermediate frame 5 rises with respect to the traveling frame 4 with the pivot 7 as a fulcrum. I do. At this time, the traveling platform 3 includes the small wheels 30a, 3
Self-propelled by 0b, enters the receiving space S of the mounting table 1,
The column 27 stops at a position where it comes into contact with the stopper 19.
When the second notch 38 of the tongue piece 23 faces downward due to the upright rotation of the undulating frame 2, the claw piece 42 urged upward by the spring 44 automatically enters the second notch 38 and engages with it. Then, the undulating frame 2 is fixedly locked in the standing posture, and FIG.
A chair as shown in FIG. In other words, the mat 9 of the traveling frame 4 which is substantially horizontal forms a seat portion of the chair, and the mat 10 of the intermediate frame 5 which is slightly inclined and upright forms a backrest portion of the chair.

In a state in which the chair is constructed, the article storage means 31 containing the blanket and the pillow of the attendant enters the receiving space S of the installation table 1 together with the traveling table 3 and the protection plates 22, 2 on both sides.
Covered by 2. In addition, the frame structure of the installation table 1 and the traveling table 3 is blinded by the protection plates 22, 22, and the substantially triangular space formed between the intermediate frame 5 and the undulating frame 2 bent in the shape of a mountain is also included. Closure plate 3 from both sides
Since it is closed by 2, 32, the aesthetic appearance is also excellent.

Since the legs 11, 11 of the table 1 are grounded to the floor, the chair does not run freely and can secure safety. On the other hand, if the chair is in the way, such as when a visitor visits, the small wheels 30b, 30
If the chair is tilted backward with b as a fulcrum,
The chairs 1 and 11 are lifted up and tilted, and the small wheels 30
It becomes possible to travel and move to a desired place by b and 30b.

In order to transform the chair from the chair to the bed again, the foot pedal 45 is depressed so that the claw piece 42 is retracted from the second notch 38 of the tongue piece 23, and the locked state of the raised frame 2 is released. Then, the undulating frame 2, the intermediate frame 5, and the traveling frame 4 are developed on substantially the same plane, thereby forming a bed. At this time, when the grip 34 is gripped and the pivot 33 is pressed down, the traveling platform 3 escapes from the receiving space portion S of the installation platform 1 while being self-propelled by the small wheels 30a and 30b, and is bent into a mountain shape. Intermediate frame 5
And the undulating frame 2 are extended so as to extend substantially on the same plane. When the first notch 37 of the tongue piece 23 faces downward due to the rotation of the undulating frame 2, the claw piece 42 urged upward by the spring 44 automatically enters the first notch 37. To lock the undulating frame 2 in a horizontal position to form a bed as shown in FIG.

[0033]

According to the first aspect of the present invention, when transforming from a bed to a chair, or from a chair to a bed, an attendant as an operator must be in the recess 3.
Insert the hands into the hands 5 and 36, hold the grip 34, and
Performing a simple operation of lifting or pushing down 3 has the effect that work can be easily performed while the traveling platform 3 is running on its own.

According to the second aspect of the present invention, in a state where the chair is constructed by turning up and down the up and down frame 2, the up and down frame 2 is fixedly locked in the upright posture state with respect to the installation table 1. Since the devices 38 and 42 are provided, there is no danger of the hoisting frame 2 accidentally rotating when the attendant or another person is seated, which is safe. Since the foot pedal 45 is provided as a means for releasing the locked state of the lock device, the operation is easy, and in particular, even when the grip 34 is held by hand as described above, the foot pedal 45 is used. Since the foot pedal 45 can be operated, even when the attendant is a single person, the work of transforming the bed and chair into each other can be easily performed. In addition, since the foot pedal 45 is provided at the rear of the installation table 1, there is no danger that the foot pedal 45 may be operated by mistake when the attendant or the like is seated on the chair, which is safe.

According to the third aspect of the present invention, in the state where the chair is constructed, the extension arm 26 of the traveling platform 3 which is inserted into the inside of the installation platform 1 is provided at the extension end of the arm. The wheel 30b is positioned behind the mounting table 1, thereby forming a tilting fulcrum of the chair.
By tilting the chair backward with the fulcrum as a fulcrum, the chair can be moved to a desired place by the wheels 30b, which is extremely convenient.

According to the fourth aspect of the present invention, in a state where the traveling platform 3 is made to enter the receiving space portion S of the installation platform 1 to form a chair, the frame structure of the installation platform 1 and the traveling platform 3 is formed. Since it is blindfolded by the protective plates 22 and 22, the aesthetic appearance becomes excellent. In addition, in a configuration in which the bed and the chair are mutually transformed by being fitted or removed inside the installation table 1 while the traveling table 3 is self-propelled, both sides are covered by the protection plates 22 and 22 from the outside. In addition, there is no risk of the operator's fingers being stuck between the traveling platform 3 and the installation platform 1, and the operation can be performed safely.

According to the present invention, the traveling platform 3 is located below the traveling frame 4 and the article storage means 31
Is provided, a blanket, a pillow, and the like used by an attendant at bedtime can be suitably stored, and the bed is configured by unfolding the undulating frame 2, the intermediate frame 5, and the traveling frame 4 on substantially the same plane. In the state, the blanket, the pillow and the like can be freely taken in and out of the article storage means 31, which is convenient. On the other hand, in the state where the chair is configured, the article storage means 31 enters the receiving space S of the installation table 1 together with the traveling stand 3 and is covered with the protection plates 22 on both sides. A blanket, a pillow, and the like are not easily visually recognized, and have an effect of maintaining an aesthetic appearance.

[Brief description of the drawings]

FIG. 1 is a front view showing a state in which a bed is configured according to an embodiment of the present invention.

FIG. 2 is a plan view of the bed.

FIG. 3 is a side view of the bed, (A) is a right side view,
(B) is a left side view.

4A and 4B show a state where a chair is configured according to an embodiment of the present invention, wherein FIG. 4A is a front view of the chair, and FIG. 4B is an enlarged view of a lock device.

5A and 5B show a lock device according to an embodiment of the present invention, wherein FIG. 5A is a side view showing an operation, and FIG. 5B is a partially enlarged view of a locked state.

FIG. 6 is a partially enlarged view showing a state where the lock of the lock device is released.

FIG. 7 is a partially enlarged view showing a state in which the undulating frame is rotated with the lock device released.

FIG. 8 is a perspective view showing a frame structure of an installation table and a traveling table.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Installation stand 2 Undulating frame 3 Traveling stand 4 Traveling frame 5 Intermediate frame 8, 9, 10 Mat 22 Protective plate 23 Tongue piece 26 Extension arm 26a Extension part 30a, 30b Small wheel 31 Article storage means 33 Axis 34 Grip 35, 36 Recess 37, 38 Notch 40 Swing arm 42 Claw piece 43 Driving rod 44 Spring 45 Foot pedal

Claims (5)

[Claims] 1. An up-and-down frame pivotally connected to an installation table installed on a floor so as to be able to stand up and rotate, a traveling frame provided on a traveling table capable of self-propelling on the floor, and between an up-and-down frame and the traveling frame. The intermediate frame and the intermediate frame are connected to each other, a mat is mounted on each frame, and the bed is constructed with the undulating frame, the intermediate frame, and the traveling frame spread out on substantially the same plane, In a state in which the seat is formed by the running frame and the backrest is formed by the intermediate frame, the chair is also used as a chair in a state in which is inserted into the inside of the installation table and the undulating frame and the intermediate frame are bent in a mountain shape. In the bed, a grip is provided on an axis connecting the undulating frame and the intermediate frame, and the mat of the undulating frame and the mat of the intermediate frame are provided with a grip. A recess facing the lip, bed chair combined, characterized in that formed by freely configure lift the pivot by gripping the grip. 2. An up-and-down frame pivotally connected to an installation table installed on the floor so as to be able to stand up and rotate, a traveling frame provided on a traveling table capable of self-propelling on the floor, and a space between the up-and-down frame and the traveling frame. The intermediate frame and the intermediate frame are connected to each other, a mat is mounted on each frame, and the bed is constructed with the undulating frame, the intermediate frame, and the traveling frame spread out on substantially the same plane, In a state in which the seat is formed by the running frame and the backrest is formed by the intermediate frame, the chair is also used as a chair in a state in which is inserted into the inside of the installation table and the undulating frame and the intermediate frame are bent in a mountain shape. In a state where the chair is constructed by rotating the undulating frame upright, the undulating frame is fixed to the upright position with respect to the installation table. Click the locking device is provided which, bed chair also serves characterized by comprising providing the rear of the foot pedal to release the locked state of the installation base of the lock device. 3. An up-and-down frame pivotally connected to an installation table installed on a floor so as to be able to stand up and rotate freely, a traveling frame provided on a traveling table capable of self-propelling on the floor, and a space between the up-and-down frame and the traveling frame. The intermediate frame and the intermediate frame are connected to each other, a mat is mounted on each frame, and the bed is constructed with the undulating frame, the intermediate frame, and the traveling frame spread out on substantially the same plane, In a state in which the seat is formed by the running frame and the backrest is formed by the intermediate frame, the chair is also used as a chair in a state in which is inserted into the inside of the installation table and the undulating frame and the intermediate frame are bent in a mountain shape. In the bed, the traveling platform is provided with an extension arm extending opposite to the installation platform, and wheels are provided at the extension end of the extension arm so that the traveling platform enters the interior of the installation platform. In a state in which to configure the chair by caulking, bed chair combined, characterized in that the wheel is formed by forming a fulcrum of inclination of the chair in the installation base of the rear position. 4. The installation table according to claim 1, further comprising protection plates provided on both sides thereof, and a receiving space for receiving the traveling table entering between the protection plates. Chair double bed. 5. The bed according to claim 4, wherein the traveling platform is provided below the traveling frame and provided with article storage means.