JP3045963U - Folding bed chair - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a folding couch, which can be freely changed to an appropriate angle, also serving as a bed, a couch having a backrest, and a couch having a backrest. SOLUTION: On the upper side of a base having a symmetrical two-sided frame which is turned and opposed to each other from a pivot, a two-sided sheet frame having a shape substantially corresponding to the both-sided frame is freely foldable. In the couch, each of the sheet frame portions is 4
Two split frames of the same size and symmetrical shape are arranged side by side, the split frame is constructed by assembling the frame material into a quadrilateral, and the two adjacent split frames are connected to each other at the outer corners via a ratchet hinge,
The inner corners are connected to each other by a pin joint mechanism so that they can be bent to face each other, and the ratchet hinge can be stopped at a plurality of bending angles. A foldable bed stay characterized by being assembled so as to be rotatable in a direction.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a slidable couch that can be folded back and forth or left and right, and more particularly to a couch with a backrest and a couch with a backrest that can be freely changed to an appropriate angle. It is about.

[0002]

[Prior art]

 In general, a folding couch can be deployed in the form of a couch with a bed or backrest when needed, and can be significantly reduced in bulk when folded when not in use. Also, considering the comfort during use, place the two support bases side by side on the frame base with feet, lay a mattress on each support base, and support the base from the waist to the head and the mattress. Some can be turned into a bed with a backrest by turning it upward.

FIG. 6 is a perspective view of a conventional folding bed sheet. A conventional folding bed sheet 1 has a symmetrical structure in which both base frames 11 are formed by a base 11 so that a bed is substantially divided into two parts from a center in a longitudinal direction. , 12, and two mattresses (not shown), which are also symmetrical, can be placed above the rope frames 12, 12. The base 11 has substantially the same shape as the rope frames 12, 12, and has both frame parts 112, 113 for stationaryly supporting the rope frames 12, 12, respectively, and both frame parts 112, 113. Are parallel to each other adjacent to one side, and the adjacent inner sides at this time are pivotally connected at both ends so as to be rotatable, and are supported on the floor via casters. And two supporting legs 117 and 118 for supporting and contacting the floor surface from below both ends on the outer side opposite to the inner side adjacent to each other in parallel and on both sides of the frame portions 112 and 113; It comprises pivot stays 111, 111 and rod stays 115, 116 for connecting the ends of the respective supporting legs 117 or 118 on the corresponding side near the floor surface.

[0004] The rope frames 12, 12 are further divided into first and second rope frame members 121, 122 in the longitudinal direction of the bed 1, and are placed in parallel with each other. The first and second rope frame members 121 and 122 are pivotally connected at both ends of adjacent side edges to elbow pieces 123 projecting from corresponding positions of the underframe portions 112 and 112.

[0005] An elbow piece 123 for one of the first rope frame members 121 (in the illustrated example, on the side of the underframe 113) is a ratchet hinge that can be rotated and stopped at a plurality of angles. The surfaces of the first and second rope frame members 121 and 122 are covered with straps or ropes so that the mattress can be placed thereon.

[0006] When using the conventional folding bed as described above, when the frame portions 112, 113 are pivotally deployed in opposite directions with the pivot portions 111, 111 as fulcrums, the legs 117, 118 become The underframes 112 and 113 are vertically supported on the floor surface, and the rope frames 12 and 12 supported at the top are simultaneously developed in a plane to form a horizontal bed (not shown). Further, if the first rope frame member 121 installed on one side is raised counterclockwise in FIG. 6 in the upward direction, it stops at a predetermined angle because of the elbow piece 123 having the ratchet hinge structure, It becomes a sleeper with a backrest.

When the folding couch is not used, the outer sides of the underframes 112 and 113 are pulled upward about the pivots 111 and 111, respectively, so that the underframes 112 and 113 are pulled upward. 113 is folded and folded, and the legs 117, 118 rotate along the frame portions 112, 113 by the pulling action of the rod stays 115, 116 each having one end connected to the pivot portions 111, 111, and the volume is greatly increased. It becomes convenient for storage or transportation.

[0008] However, the conventional folding bed chair as described above is characterized in that the first rope frame member 121 of each of the rope frame portions 12, 12 is connected to the elbow piece 123 having a ratchet hinge structure, so that the rope frame is formed. By restricting the rotation angle adjusting direction of any of the parts 12 and 12 to a single direction, the bed can be changed to a bed having a backrest, but can be changed to other use states such as a living room or a living room. It cannot be changed to a chaise longue with a backrest that can be used between guests.

[0009]

[Problems to be solved by the invention]

 Therefore, the direction in which the bending of the rope frame portions 12 and 12 can be adjusted is larger, and it can be changed to a different application depending on each bending direction, so that the use range can be expanded, and the convenience and the use effect can be greatly improved. Finding a sleeping chair is the challenge of this invention.

[0010] In view of the above-mentioned problems of the prior art, the present invention enables a rope frame to be freely bent in a desired direction and angle, and can be used for a couch, a bed, a bed, and the like. The purpose of the present invention is to provide a folding couch that greatly expands the convenience and greatly improves convenience.

[0011]

[Means for Solving the Problems]

 In order to achieve the above object, the folding couch of the present invention is provided on a base having two symmetrical underframes which are pivotally opposed to each other by a pivot portion and folded together. In the foldable couch provided with the corresponding two sheet frame portions, each of the sheet frame portions is formed by arranging four identically-sized and symmetrical split frames, and the split frame is formed by assembling the frame material into a quadrilateral. The two adjacent split frames are connected to each other via a ratchet hinge at their outer corners, and are connected to each other by a pin joint mechanism so that they can be bent to face each other. Is capable of stopping at a plurality of bending angles, and the pin joint mechanism is characterized in that a three-pin joint is combined so as to be rotatable in two orthogonal axial directions.

According to the bed with the above configuration according to the present invention, it is only possible to raise and stop the 20% frame at one end in the longitudinal direction to a desired angular position from the state where the bed is developed on the horizontal plane, and to stop and hold the frame. Alternatively, all the split frames on either side in the width direction of the two sheet frame portions, that is, the 40 split frames can be equally raised to an appropriate angular position and stopped and held. Therefore, the couch of the present invention can be converted into a bed with a backrest from a bed with a four-foldable mattress laid over the seat frame portion and the whole developed along a horizontal plane. It can be used for three kinds of uses with a certain chaise longue, and it is possible to provide a folding sleeper characterized by greatly expanding the applicable range and greatly improving convenience.

[0013]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of the folding couch according to the present invention in the form of a couch having a backrest. As shown in FIG. 1, the configuration of the folding couch according to the present invention includes a substantially symmetrical sheet frame portion 3 above the base 2 such that the couch is divided into two portions at the longitudinal center portion. Although not shown, 3 is provided so as not to be displaced via locking means or the like. A mattress (not shown) or the like is usually placed on the sheet frames 3, 3. The method of placing the mattress on the seat frames 3, 3 is not particularly limited, and any general method may be used. The base 2 is a bi-symmetrical U-shaped underframe 22, 23, and a lower end thereof is in contact with a floor surface via a caster, and the underframe 22, 23 has a position where the open ends of both arms face each other. The two pivoting portions 21 and 21 rotatably pivotally connected to each other, and the pivoting ends of the two frame frames 22 and 23 are pivotally opposite to the pivoting ends, and the ends thereof are brought into contact with the floor surface. Legs 24, 24, which are supported parallel to each other, and parallel bar stays 25, 25 for connecting lower ends near the respective floor surfaces between both ends of the legs 24, 24 and corresponding pivotal supports 21, 21 respectively. , 25, 25, etc.

When the seat frames 3, 3 are to be pivotally deployed about the pivots 21, 21, the pivoting ends of the underframes 22, 23 are pulled in opposite directions, so that the legs 24, 24 are pulled. Each of the rod stays 25, 25, 25, 25, together with the pivotal supports 21, 21, cooperates with each other as a parallel link mechanism so that the rod stays are almost perpendicular to the floor surface and can be reliably supported. Conversely, when the two seat frame portions 3, 3 are lifted from the underframes 22, 23 with respect to the pivot portions 21, 21, the legs 24, 24 are pulled by the rod stays 25, 25, 25, 25. It turns and folds along the underframes 22 and 23, and can be overlapped with both the sheet frames 3 and 3. When both are completely overlapped in the upright position, the overall bulk is increased. Dramatically reduced and easier to store.

FIG. 2 is an exploded perspective view of a pin joint mechanism in the folding bed according to the present invention, and FIG. 3 is a view showing an aspect of rotation of the ratchet hinge and the pin joint mechanism in the folding bed according to the present invention. FIG. 4 is a three-dimensional enlarged view of a main part showing another mode of rotation of the pin joint mechanism in the folding bed according to the present invention. In this embodiment, as shown in FIG. 2, each of the two sheet frame portions 3 is composed of four identically-sized and symmetrically-shaped first split frames 31, second split frames 32, and third split frames 32. A frame 33 and a fourth split frame 34 are provided.

Since the configuration and the shape of the arrangement of each split frame are symmetrical with respect to the two pivots 21, 21, the following description will be made only on one side of the two pivots 21, 21. Each of the 40% frames 31, 32, 33 and 34 has its two orthogonal frame members attached to one of the two orthogonal frame members of both adjacent split frames, and the four corners abut at the center. Line up. Then, the four corners butted at the center are connected by the pin joint mechanism 4 so that the corners can be bent along any of the two orthogonal frame members, and at the same time, are connected to the other outside corners. The seat frame portion 3 is formed by connecting the corresponding corner portions of the adjacent split frames to each other by ratchet hinges 35, 35, 35, 35 so as to rotate and bend.

The ratchet hinges 35, 35, 35, 35 can use articulated joints having a position stopping function for a known beach chair or the like, and are configured to be rotated and held at a plurality of angular positions. It should just be.

As shown in FIG. 2, the pin joint mechanism 4 is formed by combining three sets of pin joints. That is, the pin members 42 are pivotally connected to the joint members 43 and 44, and the joint members 43 and 44 are rotatable about the pin members 42. The other ends of the joint members 43 and 44 are The pin member 42 is formed at shaft end portions 433, 443 in the orthogonal direction. The two sets of joint members 41, 41 and 41, 41 are pivotally connected to each other, and are rotatable along the axis of the joint members 43, 44. Make a pin joint. For example, in the illustrated example, the joint portions 41, 41, 41, 41 of the pin joint mechanism 4 are configured such that one of the joint members 41, 41 on the shaft end 433 side is the first split frame 31, and the other is the third split frame 31. Of the joint members 41, 41 on the shaft end 443 side to the outer corner of the second split frame 32 and the other to the outer corner of the fourth split frame 34. Be connected. According to the pin joint mechanism 4, in the illustrated example, the second and fourth split frames 32 and 34 can be simultaneously stopped and held at a certain angle rotated from the planar position, while the first and fourth split frames 32 and 34 can be simultaneously stopped. The second split frames 31 and 32 can be simultaneously stopped and held at a certain position rotated angularly from the planar position.

In actual use of the folding couch of the present invention, there are two types of applications other than a flat camping bed depending on the user's desire as described above.

First, a case where the user wants to use a bed with a backrest will be described. When the second and third split frames 32, 33 are simultaneously raised upward at the desired angle, the ratchet hinges 35, 35 and the pin joint mechanism 4 are tilted to an appropriate angle as shown in FIG. Therefore, it can be used as a bed with a backrest.

Next, a case where the user wants to use the couch with a backrest will be described. In other words, when the first and second split frames 31 and 32 in both of the sheet frame portions 3 and 3 arranged in the longitudinal direction are combined and the four split frames are simultaneously raised upward at the desired angle, FIGS. As shown in Fig. 7, the chair can be used as a chair with a backrest by tilting at an appropriate angle about the two-pin joint mechanism and the four ratchet hinges 35, 35, 35, 35.

[0023]

[Effect of the invention]

 As apparent from the above description, the present invention is a special arrangement improvement with the first, second, third and fourth split frames 31, 32, 33 and 34, and four ratchet hinges at their contact points. Due to the articulation of the clever design of the pin joint mechanism 4 with the 35, 35, 35, 35 and the pin joint mechanism 4, the folding couch of the present invention has a chaise with a back from a flat bed as a whole and a couch with a back. It can be freely changed to two types of applications, and if folded, it is compact and does not take up space when storing, greatly expanding the application range of conventional folding beds and greatly increasing the convenience of use. Can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mode of a couch having a backrest of the folding couch according to the present invention.

FIG. 2 is an exploded perspective view of a pin joint mechanism in the folding bed according to the present invention.

FIG. 3 is an enlarged perspective view of a main part showing one mode of rotation of a ratchet hinge and a joint mechanism in the folding bed according to the present invention.

FIG. 4 is an enlarged perspective view of a main part showing another rotation mode of the pin joint mechanism in the folding bed according to the present invention.

FIG. 5 is a perspective view showing an embodiment of a couch having a backrest of the folding couch according to the present invention.

FIG. 6 is a perspective view of an embodiment of a conventional couch having a backrest of a folding couch.

[Explanation of symbols]

 2 Base 3 Seat frame 21 Pivot 22, 23 Underframe 24 Supporting leg 25 Bar stay 31 First split frame 32 Second split frame 33 Third split frame 34 Fourth split frame 35 Ratchet hinge 4 Pin joint Mechanism 43, 44 Joint member 433 Shaft end 443 Shaft end 42 Pin member 41 Joint member

Claims (1)

[Utility model registration claims] 1. A foldable structure in which both seat frames having substantially the same size as the two frames are provided on the upper side of a base having symmetrical two frames which are turned and opposed to each other from the pivot. In the free-standing bed, each of the sheet frame portions is formed by arranging four identically-sized and symmetrical split frames, the split frame is formed by assembling a frame material into a quadrilateral shape, and two adjacent split frames are formed at the outer corners of each other. The parts are connected via a ratchet hinge, and the inner corners are connected by a pin joint mechanism so that they can be bent to face each other, and the ratchet hinge can be stopped at a plurality of bending angles. The folding bedside is characterized in that the joint mechanism is formed by combining a three-pin joint so as to be rotatable in two orthogonal directions.