JPS64131Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a sofa/bed device that can hold a seat body horizontally or at a predetermined inclination angle with respect to a back body.

Generally, this type of sofa/bed device is
A back body and a seat body are rotatably provided on a base body provided with armrest bodies at both ends in the longitudinal direction by a hinge mechanism, and the back body is mounted horizontally or at a predetermined inclination angle with respect to the seat body. It is designed to be able to be held in place.

By the way, according to the sofa bed device having such a configuration, when the back body is placed horizontally to the seat body and used as a bed, the effective length as a bed is the same as the length of the base body, When used by a person, the user's head and feet hit the armrests provided at both longitudinal ends of the base, making it extremely difficult to use.

In order to eliminate these drawbacks,
A sofa/bed device disclosed in Japanese Patent No. 40842 is known. In other words, the idea disclosed in this publication is that the armrest body is formed from a first plate-like body and a second plate-like body, and the first plate-like body is formed into a seat body and a back body that are converted into a bed. It is designed so that it can be rotated and displaced horizontally to the plane formed by the body. However, in this conventional example, since the first and second plate-like bodies are rotatably displaceable, the first guide groove and the second guide are engaged with pins protruding from the end faces of these plate-like bodies. A groove is formed parallel to the inner surface of the side plate. Therefore, the width of the side plate must be such that the two guide grooves can be formed, which increases the width of the armrest, resulting in an unsightly appearance. Moreover, the structure requires two guide grooves on the side plate.
The structure became more complex and it took more time to manufacture.

This idea was made based on the above circumstances, and its purpose was to improve the appearance by reducing the width of the armrest body, and to create a sofa bed that could be simplified in structure. The goal is to provide equipment.

An embodiment of this invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a base body to which armrest bodies 2 are connected at both ends in the longitudinal direction and held horizontally by these armrest bodies 2. A hinge mechanism 3 (only one of which is shown) is provided at both longitudinal ends of the base body 1 . These hinge mechanisms 3 include a back body 4 and a seat body 5.
Both ends of the base member 1 are connected to each other, and the base member 1 is rotatable with respect to the base member 1. Both the back body 4 and the seat body 5 are composed of frame bodies 4a, 5a, and cushion bodies 4b, 5b placed and fixed on the frame bodies 4a, 5a. The back body 4 is connected to the third position by the hinge mechanism 3.
As shown in the figure, it can be held at a predetermined inclination angle with respect to the seat body 5 or horizontally as shown in FIG. 2, and when held horizontally, the back body 4 and the seat body 5 The width dimension formed by the armrest body 2 is approximately the same as the width dimension of the armrest body 2.

On the other hand, the armrest body 2 has a core body 6 as shown in FIGS. 4 to 7. This core body 6 is formed of a square pipe into a substantially U-shape with vertical supports 7 at both ends of the middle side. A guide hole 8 serving as a guide portion is bored in the mutually opposing side surfaces of the pair of support columns 7, extending over almost the entire length in the axial direction.
Further, a horizontal member 9 is installed between the lower ends of the pair of pillars 7, and connecting pieces 10 are fixed to both ends of the horizontal member 9, respectively. The core body 6 is attached and fixed to the base body 1 by the connecting piece 10 mentioned above.

A first plate-like body 11 and a second plate-like body 12 are attached to the support column 7. First plate-shaped body 11
The width of the upper half is larger than the width of the lower half, and has a stepped portion 13 at the boundary between these, and an armrest portion 14 at the upper end. Further, the length dimension of the lower half of the first plate-shaped body 11 is the length of the above-mentioned support 7.
The height dimension is approximately half of the height of the support column 7, and on the inner surface of both ends in the width direction of the lower half, there are first pins 1 that are slidably engaged with the guide holes 8 of the support columns 7.
An L-shaped first mounting plate 16 having a diameter of 5 is fixed. Note that this first plate-like body 11 is provided on the side surface of the core body 6 on the side attached to the base body 1, that is, on the inner surface side. The second plate-like body 12 is the pillar 7
The length dimension is approximately the same as the height dimension of the core body 6, and it is provided on the outer surface side of the core body 6. This second
An L-shaped second mounting plate 18 is provided at the lower end of both ends in the width direction of the inner surface of the plate-like body 12. It is fixed. The upper end surface of the second plate-like body 12 is pivotally connected to the step portion 13 of the first plate-like body 11 by a hinge 19.

According to the sofa/bed device configured in this manner, when the back body 4 and the seat body 5 are placed horizontally and used as a bed, the first plate-like body 11 of the armrest body 2 is moved from the vertical position to the above-mentioned position. Back body 4 and seat body 5
It can be rotated and displaced so that it is parallel to the plane formed by the two. That is, the first plate-like body 1 is connected to the first plate-like body 11 together with the second plate-like body 12.
1 until the first pin 15 contacts the upper end of the guide hole 8. Next, when the first plate-shaped body 11 is tilted toward the outer surface of the core body 6, the second plate-shaped body 12 descends while pivoting toward the outer surface using the second pin 17 as a fulcrum. When the first plate-shaped body 11 is tilted until it becomes almost horizontal, the second pin 17 comes into contact with the lower end of the guide hole 8, so that the second plate-shaped body 11 is tilted down until it becomes almost horizontal. Rotation of the body 12 is prevented and the first plate-like body 11 is held horizontally. Therefore, since the upper surface of the first plate-shaped body 11 can be used as a part of the bed, the effective length of the bed becomes larger than the length of the base body 1.

In addition, the armrest body 2 having the above configuration has one support for each support 7.
The first and second plate-shaped bodies 11 and 12 can be attached only by forming one guide hole 8. Therefore, the width of the support column 7 can be made smaller, thereby making it possible to make the width of the armrest body 2 smaller.

As described above, this invention forms one guide part along the axial direction on the support that constitutes the armrest body, and allows the first plate-like body and the second plate-like body to slide freely on this guide part. The first plate-shaped body is attached rotatably so that it can be used as a part of the bed. Therefore, compared to the conventional system in which the first plate-like body and the second plate-like body are attached to separate guide grooves, not only can the width of the armrest body be reduced and the appearance can be improved; The structure is also simple.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention, in which FIG. 1 is a front view in a sofa state, FIG. 2 is a perspective view in a bed state, and FIG. 3 is a side view taken along line 1-1.
FIG. 4 is a longitudinal sectional view of the armrest body, FIG. 5 is a transverse sectional view taken along line 4- in FIG. 4, FIG. 6 is a transverse sectional view taken along line 4- in FIG. 4, and FIG. 7 is a front view of the core body of the armrest body. 1: Base body, 2: Armrest body, 3: Hinge mechanism, 4: Back body, 5: Seat body, 7: Support,
8: guide hole; 11: first plate-like body; 12:
... second plate-shaped body, 14 ... armrest portion, 15
...First pin, 17...Second pin.

Claims (1)

[Scope of utility model registration request] A base body with armrests provided at both ends in the longitudinal direction,
The back body and the seat body are rotatably provided by a hinge mechanism, and the back body can be held horizontally or at a predetermined inclination angle with respect to the seat body, and the armrest body is , a support provided at both ends in the longitudinal direction of the base, a guide portion formed along the axial direction of the support, and a lower end that is joined to one side surface of the support on the base side and is slidable into the guide portion. A first pin rotatably engaged is provided and an upper end portion is formed in the armrest portion, and by sliding the first pin upward along the guide portion, the first pin is vertically engaged with the first pin as a fulcrum. a first plate-shaped body that can be brought down from an upright position, and a second pin that is joined to the other side of the pillar and is slidably and rotatably engaged with the guide part at the lower end; is pivotally attached to the middle part of the first plate-shaped body, and when the first plate-shaped body is laid down, it rotates about a second pin as a fulcrum, and the first plate-shaped body A sofa/bed device characterized by comprising a second plate-like body that holds the body in a horizontal state.