JP2005204795A - Sofa bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sofa bed which can be used as a bed by superposing a backrest on the top of a seat part so as to minimize a backward projecting size from the seat part. <P>SOLUTION: Regarding the sofa bed, a seat part 4 is fixed to a frame 3, both the right and left side parts of which are supported by legs 2, and the backrest 5 is provided at the rear end of the seat part 4 so as to be turned between a standing position of standing at the rear position of the seat part 4 and a fallen position where its front surface abuts on the upper surface of the seat part 4 and a rear surface is nearly horizontal. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sofa combined bed in which a backrest portion can be laid down to be a simple bed.

  As this type of conventional sofa bed, for example, as described in Patent Document 1, a backrest portion is attached to a rear portion of a seat portion so as to be rotatable between a standing position and a lying position by a hinge. Some support members for holding the backrest in an upright position between the backrest and the backrest

Registered Utility Model Publication No. 3058669

  In the conventional sofa-combined bed described in the above-mentioned patent document, when the backrest part is rotated to the lying down position, it protrudes greatly behind the seat part, so it can be used as a bed, stored or transported. In this case, a large installation space and storage space are required.

  In order to change from a sofa to a bed or from a bed to a sofa, the fixing bolt that fixes one end of the support member to the seat or backrest must be removed or tightened each time. There is also a problem that the work is troublesome and the suddenly ill person or the like is changed to a bed and cannot be put on quickly.

  The present invention has been made to solve the above-mentioned problems, and by making the backrest part overlapable with the upper part of the seat part so that it can be used as a bed, the projecting dimension from the seat part to the rear is minimized. An object of the present invention is to provide a sofa bed that can reduce the installation space, storage space, etc., and can easily carry a person with a sudden illness, etc., with the backrest portion being easily leveled.

In order to solve the above-mentioned problem, the sofa-combined bed according to claim 1 of the present invention is such that a seat is fixed to a frame supported on at least one pair of left and right sides by a pair of legs, and the rear end of the seat In addition, the backrest portion is provided so that it can be rotated between a standing position where the back portion stands up behind the seat portion, and a lying position where the front surface is in contact with the upper surface of the seat portion and the rear surface is substantially horizontal. It is characterized by.
According to this feature, the backrest can be used as a bed by rotating the backrest to the lying down position, and the backrest does not protrude greatly behind the seat as in the conventional case. Can be small.
Moreover, since the front-rear dimension when used as a bed is reduced, it is possible to easily carry a narrow passage or the like on which a sick person or the like is placed.

The sofa-combined bed according to claim 2 of the present invention is the sofa-combined bed according to claim 1, wherein the vertical dimension at the standing position of the backrest part is larger than the longitudinal dimension of the seat part. It is characterized by.
According to this feature, the sitting comfort when used as a sofa is improved, and the back and forth dimensions are larger than the sitting part when lying on the back, so that it is possible to lay the sick person stably. Can do.

The sofa-combined bed according to claim 3 of the present invention is the sofa-combined bed according to claim 1 or 2, wherein both end portions of the rotating arm are rotated on the left and right side surfaces of the seat portion and the backrest portion. It is characterized in that a backrest portion is rotatably provided at the rear end of the seat portion by being pivotably mounted.
According to this feature, the backrest can be easily and quickly rotated between the standing position and the lying position, so that a suddenly ill person or the like can be quickly placed and transported.

A sofa-combined bed according to a fourth aspect of the present invention is the sofa-combined bed according to any one of the first to third aspects, and is provided with a lock means for holding the backrest portion in the standing position and the lying position. It is characterized by that.
According to this feature, there is no fear that the backrest will rotate to the lying position in a delusion, and the backrest is held in the lying position, so that it is possible to stably lay or transport the sick etc. it can.

The sofa-combined bed according to claim 5 of the present invention is the sofa-combined bed according to any of claims 1 to 4, wherein a band for fixing a human body is provided on the back surface of the backrest portion. It is said.
According to this feature, when used as a bed, a sick person or the like can be secured by the band and transported safely.

The sofa-combined bed according to claim 6 of the present invention is the sofa-combined bed according to any one of claims 1 to 5, wherein when the backrest is in the lying position on the side of the backrest, It is characterized in that a fitting portion is provided in which the lower end portion of the carrying handle is detachably fitted.
According to this feature, when used as a bed, the carrying handle can be fitted into the fitting portion and easily transported.

The sofa-combined bed according to claim 7 of the present invention is the sofa-combined bed according to claim 6, wherein a storage concave portion having an open rear end is provided inside the seat portion, and a carrying handle is provided in the storage concave portion. It is characterized by storing.
According to this feature, it is possible to take out the transport handle stored in the storage recess, quickly attach it to the fitting portion, and quickly transport a sick person or the like.

The sofa / bed according to claim 8 of the present invention is the sofa / bed according to any one of claims 1 to 7, characterized in that casters are provided at the lower ends of the left and right legs.
According to this feature, a sick person or the like can be easily transported by a small number of people when used as a bed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view when the sofa-use bed of the present invention is used as a sofa, and FIG. 2 is a perspective view when the bed is also used as a bed.

  As shown in the front view of FIG. 3 and the side view of FIG. 4, the sofa bed 1 includes a frame 3 having a horizontally long rectangular frame shape in which two front and rear legs 2 are attached to left and right side ends. , And a seat portion 4 fixed to the upper portion thereof, and a backrest portion 5 standing up behind the seat portion 4.

A caster 6 with a stopper is attached to the lower end of each leg 2.
The vertical dimension of the backrest 5 is larger than the longitudinal dimension of the seat 4, and the front surface is formed on a curved surface that bulges forward, and the rear surface is formed on a flat surface.

  When used as a bed, bands 7, 7 for fixing a sick person or the like are attached to the back surface of the backrest portion 5 so as to be able to be pulled out and wound, and on the top surface, the backrest portion 5 is rotated. For ease, a pair of handles 8, 8 are attached.

  The lower end of the rotating arm 10 having a substantially U-shape when viewed from the side faces the left and right sides of the upper corner of the fan-shaped support plate 9 fixed to the rear ends of the left and right sides of the seat 4. The pivot 11 is pivotally attached to the pivot 11 so as to be rotatable in the front-rear direction. A base portion of an inverted L-shaped lock plate 12 is fixed to the pivot shaft 11 so as to be able to rotate in conjunction with the rotating arm 10.

  At the lower end of the downward piece of the lock plate 12, as shown in a cross-sectional plan view of FIG. A first locking means 17 comprising a compression spring 16 urging to the side is provided, and a locking hole 18 is formed by drilling the tip of the locking pin 14 protruding from the lock plate 12 at the lower end of the support plate 9. The lock plate 12 can be locked at a position rotated by approximately 90 ° by selectively engaging with a locking hole 18 formed in the upper end portion spaced apart by approximately 90 °. .

  The engagement hole 19 formed on the front side of the side surface of the seat portion 4 and the engagement hole 20 formed on the front end of the front-facing piece of the lock plate 12 include a second locking means, that is, Both ends of the letter-shaped lock bar 21 are detachably fitted.

  The rear end portion of the lock bar 21 is also fitted into the engagement hole 22 formed on the side surface of the backrest portion 5 when the backrest portion 5 is rotated to the lying down position. (Refer to FIG. 6) The rear ends of the left and right pivot arms 10 are pivotally attached to the central portions of both side surfaces of the backrest 5 by pivots 23 that face in the left-right direction.

  Thereby, as shown in FIG. 4, the backrest part 5 has the standing position where the lower front surface comes into contact with the rear end of the seat part 4 and the pivot 11 of the seat part 4 as shown in FIG. 6. The center of the front surface can be rotated between the lying position where the center of the front surface contacts the upper surface of the seat portion 4.

  By fitting the lock bar 21 into the engagement hole 22 as described above at the lying down position, the upper surface (rear surface) of the backrest portion 5 is held horizontal, and the vertical dimension of the backrest portion 5 is adjusted. Since the size is larger than the longitudinal dimension of the seat 4, the upper surface is a bed surface wider than the seat 4.

  A pair of bottomed fitting parts, that is, fitting cylinders 24 and 24 that are vertically oriented at the lying down position and open at the upper end are fixed to both surfaces of the rotating arm 10 on both side surfaces of the backrest part 5. ing.

  As shown in FIG. 6, the lower ends of the two support rods 25a of the carrying handle 25 having a T shape in a side view are detachably fitted to the fitting cylinders 24. . That is, in a normal state, the handle 25 is housed in a housing recess 26 formed in the seat portion 4 and opened at the rear end, taken out in an emergency, and quickly mounted on the fitting cylinder 24. Thus, the sofa / bed 1 can be easily transported.

  As shown in FIGS. 6 and 7, a bottomed holding hole 27 facing in the vertical direction is formed in the lying position at the rear corners of the left and right ends of the backrest part 5. A stand 28 capable of hanging an infusion container or the like is detachably fitted. The stand 28 can also be locked to a holding member (not shown) provided on the lower surface of the seat portion 4.

  In the sofa combined bed 1 described above, the backrest 5 can be rotated forward to easily set the lying position, and the patient can be placed on the rear surface as a horizontal bed surface. The front and rear dimensions are smaller than those to be used, and it can be easily transported even in a narrow passage as a substitute for an emergency stretcher.

  Further, the backrest 5 is stably held in the standing position and the lying position by the first locking means 17 and the lock bar 21 that is the second locking means. Can be laid stably and transported safely.

  The first locking means 17 can be omitted.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

It is a perspective view at the time of using the sofa combined bed of this invention as a sofa. Similarly, it is a perspective view when used as a bed. Similarly, it is a front view when the backrest portion is in the standing position. It is a side view similarly. FIG. 5 is an enlarged cross-sectional plan view taken along line VV in FIG. 4. It is a side view when a backrest part is made into a lodging position. It is also a plan view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sofa bed 2 Leg 3 Frame 4 Seat part 5 Backrest part 6 Caster 7 Band 8 Handle 9 Support plate 10 Rotating arm 11 Pivot 12 Lock plate 13 Operation knob 14 Locking pin 15 Support cylinder 16 Compression spring 17 Lock means 18 Locking hole 19 Engaging hole 20 Engaging hole 21 Lock bar (locking means)
22 engaging hole 23 pivot 24 fitting cylinder (fitting part)
25 Carrying handle 25a Support 26 Storage recess 27 Holding hole 28 Stand

Claims (8)

  A seat is fixed to a frame supported by at least a pair of legs on both the left and right sides, a backrest at the rear end of the seat, an upright position at the rear of the seat, and the front is a seat A sofa-use bed, which is provided so as to be in contact with the upper surface of the bed and to be rotatable between a lying position where the rear surface is substantially horizontal.   The sofa combined bed according to claim 1, wherein the vertical dimension of the backrest at the standing position is larger than the longitudinal dimension of the seat.   3. The backrest portion is rotatably provided at the rear end of the seat portion by pivotally attaching both ends of the rotation arm to the left and right side surfaces of the seat portion and the backrest portion. A sofa bed as described in.   The sofa / bed according to any one of claims 1 to 3, further comprising lock means for holding the backrest portion in the standing position and the lying position.   The sofa combined bed according to any one of claims 1 to 4, wherein a band for fixing a human body is provided on a rear surface of the backrest portion.   The sofa according to any one of claims 1 to 5, wherein a fitting portion is provided on a side surface of the backrest portion so that a lower end portion of the carrying handle is detachably fitted when the backrest portion is in a lying position. Combined bed.   The sofa bed according to claim 6, wherein a storage recess having a rear end opened therein is provided in the seat portion, and a carrying handle is stored in the storage recess.   The sofa combined bed according to any one of claims 1 to 7, wherein casters are provided at lower ends of the left and right legs.

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