JP2004243102A - Folding bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folding bed which can be compactly stored while a long bed face is secured. <P>SOLUTION: This folding bed 1 has a first bed frame body 5A with a first support leg part 4A on one end side S1 of a first laying frame 3A on which bedding is laid and a second bed frame body 5B with a second support leg part 4B on one end side S1 of a second laying frame 3B on which bedding is laid. The first laying frame 3A and the second laying frame 3B are connected so that the frames 3A, 3B are opened and folded between an opened condition in which the laying frames 3A, 3B are opened and a vertical condition in which the support leg parts 4A, 4B come close to each other approach to fold the laying frames 3A, 3B into a reverse V-shape. An auxiliary frame 10 to receive bedding projected out from one end side S1 of the first laying frame 3A by being horizontally held in an opening condition is connected to at least one end side S1 of the first laying frame 3A, The auxiliary frame 10 can be bent against the first frame 3A in the vertical condition. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a folding bed that can be stored compactly while securing a long bed surface.

  FIG. 21 shows an example of an unfolded state of a conventional folding bed a.

  The folding bed a is configured such that the other end sides of the first bed frame b1 and the second bed frame b2 facing each other are rotatably connected by a joining member e having an intermediate support leg f. .

  The first bed frame b1 includes a first placement frame c1 on which substantially half of the bedding can be placed, and a first support leg d1 provided at one end of the second placement frame c1. including. Similarly, the second bed frame b2 includes a second mounting frame c2 on which the other approximately half of the bedding can be mounted, and a second mounting frame c2 provided on one end side of the second mounting frame c2. And a support leg d2.

  Each of the supporting legs d1 and d2 is a movable leg having a wheel k. By folding the first and second supporting legs d1 and d2 closer to each other, the folding bed a becomes as shown in FIGS. 22 and 23. Can be folded up to a vertical state in an inverted V-shape.

  By the way, in recent years, tall users are increasing. In addition, so-called long-size bedding (such as 210 cm, 220 cm, etc. when the standard length is 200 cm) having a large length is sold for such users. However, as shown in FIG. 21, when the long-sized bedding m is used in the conventional standard folding bed a, it often protrudes to one end side, and it is easy to slip off, so that the appearance and the usability are poor. Therefore, it is conceivable that the lengths of the first and second mounting frames c1 and c2 in the length direction are increased to correspond to the long-sized bedding m. However, in this case, the folding height h tends to be large when folded in the vertical state shown in FIG. 23, and there is a disadvantage that the storage appearance is reduced, such as an increase in the storage shape.

  The present invention has been devised in view of the above-described problems, and at least at one end side of the first mounting frame, is held horizontally in an unfolded state, whereby the first mounting frame has An auxiliary frame for receiving bedding protruding from one end side is connected, and a long bed surface is secured on the basis that the auxiliary frame can be bent with respect to the first mounting frame in a vertical state in which the bed is folded. An object of the present invention is to provide a foldable bed that can be reduced in size while being stored while reducing its height.

  According to the first aspect of the present invention, a first bed frame provided with a first support leg at one end of a first placement frame on which a bedding is placed, and a second bed frame on which a bedding is placed are provided. A second bed frame provided with a second support leg on one end side of the mounting frame, and the other end of the first mounting frame and the second mounting frame facing each other, The unfolded state in which the first and second mounting frames are unfolded horizontally, and the vertical state in which the first and second supporting legs approach and the first and second mounting frames are folded in an inverted V shape. A foldable bed that is connected to be foldable and expandable between at least one end of the first mounting frame and is horizontally held in the unfolded state by the one end of the first mounting frame. An auxiliary frame for receiving the bedding that protrudes from the first mounting frame is connected to the auxiliary frame, and the auxiliary frame is bent with respect to the first mounting frame in the vertical state. A bed folding for.

  The invention according to claim 2 is characterized in that the auxiliary frame is bent in a V-shape with respect to the first mounting frame together with folding from the expanded state to the vertical state. It is a bed.

  The invention according to claim 3 is characterized in that the first supporting leg portion has a contact portion that comes into contact with the auxiliary frame and folds the auxiliary frame when the first supporting leg is folded to the vertical state. It is a foldable bed according to 1.

  Further, in the invention according to claim 4, the first support leg portion has a contact portion that comes into contact with the auxiliary frame and folds the auxiliary frame when folding to the vertical state, and the auxiliary frame is in the expanded state. The folding bed according to claim 1, wherein the folding bed is held horizontally.

  The invention according to claim 5 is characterized in that the upper surface of the auxiliary frame is substantially flush with the upper surface of the first mounting frame in the unfolded state. It is a folding bed as described.

  According to a sixth aspect of the present invention, in the first bed frame, the first mounting frame is provided on the one end side such that the first bed frame rises from the floor surface in the unfolded state and is grounded vertically on the floor surface in the vertical state. The folding bed according to any one of claims 1 to 5, further comprising an auxiliary wheel for supporting, and an auxiliary frame provided above the auxiliary wheel in the deployed state.

  As described above, the folding bed of the present invention receives the bedding protruding from the one end side of the first mounting frame by being horizontally held in the unfolded state at least on one end side of the first mounting frame. Since the auxiliary frame is connected, a substantially continuous long bed surface can be secured. Accordingly, a tall user can suitably use the bedding, and even when a so-called long-sized bedding having a large length is used, it is possible to prevent the user from slipping off the bedding and to improve the usability. In addition, the auxiliary frame can be bent with respect to the first mounting frame in a vertical state, thereby reducing the storage height and enabling compact folding.

  Further, when the auxiliary frame is folded in the V-shape with respect to the first mounting frame together with the folding from the unfolded state to the vertical state, no special operation is required. Can be folded compactly. Therefore, convenience is further improved. Further, as in the third aspect of the present invention, the first support leg portion can be in contact with the auxiliary frame and bend the auxiliary frame when folded to the vertical state. Moreover, when the auxiliary frame is deployed horizontally by deployment, no special operation is required to bend it horizontally, and the usability is further improved.

  According to the sixth aspect of the present invention, it is possible to cover all or main parts of the auxiliary wheels which are likely to impair the beauty of the bed by covering them with the auxiliary frame. Therefore, the beauty of the bed can be improved.

  An embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 is an overall perspective view of a folded bed (hereinafter sometimes simply referred to as a “bed”) 1 of the present embodiment, FIG. 2 is a plan view thereof, FIG. 3 is a bottom view thereof, and FIG. Are respectively shown.

  In the figure, a bed 1 of the present embodiment includes a first bed frame 5A having a first supporting leg 4A provided on one end side S1 of a first placing frame 3A on which a bedding can be placed, and a bed. A second bed frame 5B provided with a second support leg 4B on one end side S1 of a second placement frame 3B that can be placed is provided. The other end sides S2 and S2 of the first mounting frame 3A and the second mounting frame 3B facing each other are in a developed state in which the mounting frames 3A and 3B are horizontally developed (shown in FIGS. 1 to 4). ) And a vertical state (shown in FIG. 13) in which the supporting legs 4A and 4B approach each other and the mounting frames 3A and 3B are folded in an inverted V-shape (see FIG. 13).

  The first and second mounting frames 3A and 3B of the present embodiment are, for example, a peripheral frame 21 formed in a substantially rectangular shape using a pipe material and, in this example, the peripheral frame 21 is fixed to a central portion and the center of the bed. In this example, a reinforcing member 21a made of a channel material having a lower opening extending in the direction of the line X and a wooden material 22... In the bed 1 of the present embodiment, the lengths (lengths in the X direction) L1 and L1 of the mounting frames 3A and 3B shown in FIG. 2 are substantially the same. Thus, in the unfolded state, a continuous bed surface on which a so-called standard size bedding having a height of 200 cm can be placed can be formed.

  In the peripheral frame 21, first and second support legs 4A and 4B are pivotally attached to the respective one end sides S1 of the side frame portions 21b on both sides of the bed center line X. Further, in this example, a royal frame 21d is set up on a rear frame 21c located on one end side S1 of the peripheral frame 21 of the second mounting frame 3B. The bed 1 is usually used with the royal frame 21d side as the head side of the user.

  In this example, the first and second support legs 4A and 4B are provided with L-shaped L-shaped frames 24 arranged on both sides of the bed center line X, and left and right L-shaped frames 24 extending in the bed width direction. And an auxiliary leg 25 fixed to the joining material 23 are shown as an example. The L-shaped frame 24 is composed of, for example, a column portion 24a that extends vertically, and an extension portion 24b that is bent at one end side S1 at the lower end thereof and has a caster wheel C1 provided on the lower surface of the distal end. Further, in this example, the auxiliary leg 25 is fixed to a substantially middle position of the length of the joining material 23 and is bent at a small length toward the other end side S2. And a caster wheel C2 that can be grounded.

  Further, as shown in FIG. 5, a mounting bracket 28 is fixed to each of the columns 24a of the L-shaped frame 24. The mounting bracket 28 includes an upper mounting portion 26 that is mounted on the outer surface and upper side of the support portion 24a, and a lower mounting portion 27 that is mounted on the inner surface and lower side. The upper mounting portion 26 and the inner peripheral surfaces of the left and right side frame portions 21b of the peripheral frame 21 are pivotally connected to each other by using a pivot pin Ps. Further, in the unfolded state, the first mounting frame 3A and the first support leg 4A are tilted by inserting the pin 45 into the through hole 42 of the side frame 21b and the through hole 43 of the column 24a. And the deployed state can be restrained. Further, a link piece 19 (described later) is connected to the lower attachment portion 27.

  Also, as shown in FIG. 6, the other end sides S2 of the first and second mounting frames 3A and 3B are pivotally connected to each other by pins P1 and P2 (shown in FIG. 4) via a joining member 8. . The joint member 8 of the present embodiment includes connecting metal fittings 29, 29 on the left and right sides for pivotally connecting the protruding parts 21 f, 21 f, which are opposite ends of the side frame part 21 b, and a connecting plate 30 connecting the connecting metal fittings 29, 29. And The connecting plate 30 is exemplified by the one to which the intermediate supporting leg portion 7 that is suspended downward and that can be in contact with the floor surface in a deployed state is fixed.

  The connection fitting 29 has an upper open groove shape having a bottom piece 29a and side pieces 29b, 29b rising on both sides thereof. The bottom piece 29a has a cutout portion 29a1 for bending the side frame portions 21b, 21b vertically downward by notching the front end and the rear end thereof. The connection fitting 29 is improved in appearance and safety by, for example, covering the upper surface with a groove-shaped cover 35 that is open downward. In FIG. 6, a pin for pivotally connecting the protrusion 21f is not shown.

  As shown in FIG. 1, the intermediate support leg portion 7 includes support portions 32, 32 arranged on both sides, and a footrest frame portion 34 connecting between the support portions 32. The leg base frame portion 34 has a raised portion 33 that is curved upwardly convex at the center. In this embodiment, as shown in FIG. 6, a mounting bracket 36 is fixed to the upper portion of the column 32 of the intermediate leg 7. In this example, the mounting bracket 36 has a plate shape extending forward and backward, and is welded to the column 32. Through holes 37 b, 37 b that are open on both sides of the column 32 are formed in the mounting bracket 36.

  On the first bed frame 5A side, one end of the first link piece 19A is connected to the through hole 37b. The other end of the first link piece 19A is connected to the through hole 37a of the lower mounting portion 27 provided on the first support leg 4A (FIG. 5). Similarly, on the second bed frame 5B side, one end of the second link piece 19B is connected to the through hole 37b, and the other end is connected to the through hole 37a of the mounting portion 27 below the second support leg 4B. Be linked.

  As a result, as shown schematically in FIG. 7, in the first bed frame 5A, the first supporting leg 4A, the first mounting frame 3A, the intermediate supporting leg 7, and the first link piece 19A. , A parallel crank mechanism Ka is formed. Similarly, in the second bed frame 5B, the second support leg 4B, the second mounting frame 3B, the intermediate support leg 7, and the second link piece 19B form a parallel crank mechanism Kb. You. Thereby, the bed 1 can be folded from the expanded state to the vertical state while maintaining the orientation of the support portions 24a of the intermediate support portions 7 and the support portions 4 vertically. The parallel crank mechanism may be provided only on one of the first and second mounting frames 3A and 3B.

  Further, the bed 1 of this example is provided with a triggering means 9 for facilitating folding from the expanded state to the vertical state. The raising means 9 can be realized by various methods. For example, in the parallel crank mechanism Ka or Kb, the angle α (between the intermediate support leg 7 and the first mounting frame 3A (or the second mounting frame 3B)) is formed. (Shown in FIG. 4) can be realized by a biasing means such as a spring or rubber that biases in a direction to reduce the pressure.

  The pulling means 9 of the present example includes a pulley 11 provided on the first mounting frame 3A and the second mounting frame 3B at a position away from the intermediate support leg 7 to the one end side S1; An example is shown that includes a tension member 12 guided by 11.

  For example, as shown in FIG. 8A, the pulley 11 is pivotally supported by a bearing 40 fixed to the lower surface of a reinforcing member 21a provided on each of the mounting frames 3A and 3B. For this reason, the pulley 11 is provided at a position where it is difficult to visually recognize the pulley 11 from the side surface of the bed 1. As shown in FIGS. 3 and 4, in the present embodiment, the tension member 12 has a string-shaped body 13 whose one end is attached to the intermediate support leg 7 and is guided by the pulley 11, and the string-shaped body 13 An elastic material 14 such as a coil spring for pulling (other elastic materials such as a rubber body can also be used). One end of the cord 13 is fixed to the raised portion 33 of the intermediate support leg 7 and is wound around the upper surface of the pulley 11. The other end of the string 13 is fixed in place on the mounting frame 3 via an elastic member 14 formed of a coil spring in this example.

  In this embodiment, as shown in FIG. 9, the string 13 is fixed by fixing bolts 16 with eyebolt-shaped mounting members 15 that penetrate the raised portion 33 and are nut-fixed at the upper and lower portions. In addition, the string-like body 13 can be attached by various methods other than the above, and when the tension member 12 is provided across the first and second mounting frames 3A and 3B, it only needs to be passed through the hole of the mounting bracket 15. It does not have to be fixed. Alternatively, the string-like body 13 can be fixed by winding one round through the hole of the mounting bracket 15.

  The pulley 11 has an angle θ (shown in FIG. 4) formed with respect to the vertical direction of the string-like body 13 by attaching one end of the string-like body 13 to the protruding portion 33 in the unfolded state. It is positioned so as to be 60 °, preferably about 40-55 °, and in this embodiment, about 45 °. The string 13 is coupled to the elastic member 14 at a position just behind the pulley 11 (on the supporting leg side of the mounting frame to which the pulley 11 is attached). The string 13 and the elastic member 14 pass through the inside of the groove of the reinforcing member 21a as shown in FIG. 8 (B), thereby helping to cover up from outside and enhance the appearance.

  Such a raising means 9 is particularly preferable in that the bed 1 can be folded with a small force because the biasing force for biasing the bed 1 to the vertical state increases as the folding of the bed 1 proceeds. However, it is not limited to such an embodiment. The raising means 9 may be provided on only one of the first and second mounting frames 3A and 3B in this example, in addition to the case where the raising means 9 is provided on both of the first and second mounting frames 3A and 3B. When only one of the first and second mounting frames 3A and 3B forms a parallel crank mechanism, it is preferable to arrange the raising means 9 on the side having the mechanism.

  In this embodiment, the auxiliary frame 10 is connected to one end side S1 of the first mounting frame 3A. The auxiliary frame 10 of the present embodiment has substantially the same width as the first mounting frame 3A, and a length L2 (shown in FIG. 2) in the height direction is smaller than the length L1 of the first mounting frame 3A. For example, it is formed with a length of 10 to 20 cm.

  As shown in FIGS. 1, 2, and 10, the auxiliary frame 10 of this embodiment includes an outer frame 10a having a substantially rectangular shape, a crosspiece 10b fixed to the outer frame 10a, and an inside of the outer frame 10a. And a wood-like wooden material 10c arranged. Thereby, a part of the bedding can be placed on the upper surface. In this example, the outer frame 10a is formed by bending a single hollow pipe material, and the discontinuous ends E, E thereof are on the rear end frame 21c side of the first mounting frame 3A. Is located.

  In this example, the auxiliary frame 10 is connected to the rear frame portion 21c of the first mounting frame 3A via the connecting portion 50. As shown in FIG. 11 which is an enlarged view of the portion A in FIG. 10 and FIG. 12 which is a view of the connecting portion 50 in FIG. Includes a supporting metal member 51 in the shape of a circle. The support bracket 51 includes a mounting piece 51a fixed along the rear frame portion 21c of the first mounting frame 3A and fixed with screws 60, and a support piece 51b protruding from the mounting piece 51a toward the auxiliary frame 10. Consists of The screw 60 can also be used, for example, as a mounting hole of the palace 21d. In this case, when the auxiliary frame 10 is unnecessary, it can be replaced with the royal frame 21d.

  Further, a through hole 52 is formed in the support piece 51b. The discontinuous ends E, E of the auxiliary frame 10 face the outer surface of the support piece 51b of the support fitting 51, and are provided with a pin hole 63 extending in the axial direction. Then, a stepped pivot pin 64 to be inserted is screwed into the screw hole at the discontinuous end E of the outer frame 10a from the through hole 52 of the support piece 51b. The pivot pin 64 has a loose fit between the stepped portion 64a, which is a non-screw portion, and the through hole 52. For this reason, the auxiliary frame 10 of this example is rotatably connected to one end side S1 of the first mounting frame. The position of the pivot pin 64 in this example is set such that when the auxiliary frame 10 is in a horizontal state, the auxiliary frame 10 and the first mounting frame 3A are substantially at the same height.

  Further, the bed 1 is provided with a stopper 65 for holding the auxiliary frame 10 in a horizontal state in the unfolded state. The stopper member 65 of the present embodiment includes a stopper pin 65a fixed to the outer frame 10a of the auxiliary frame 10, and a restricting member 65b which comes into contact with the stopper pin 65a in an unfolded state and restricts the movement thereof. As the stopper pin 65a, an L-shaped shaft body having one end fixed to the auxiliary frame 10 (the outer frame 10a in this example), bent at approximately 90 °, and the other end extending to the upper portion of the support piece 51b is used. Can be Further, in this example, as shown in FIGS. 11 and 12, the restricting tool 65b is provided on the support piece 51b cut out so as to be able to contact the stopper pin 65a at a position where the auxiliary frame 10 is horizontal in the unfolded state. Consists of edges. Therefore, in the unfolded state, the auxiliary frame 10 is maintained in a horizontal state by its own weight and the stopper 65.

  As shown in FIGS. 1 to 3, such an auxiliary frame 10 is horizontally held at a height substantially equal to that of the first mounting frame 3A in the unfolded state. With 10, a substantially continuous bed surface longer than before can be formed. For this reason, as shown in FIG. 4, even when a so-called long-size bedding m (for example, a mattress) is used, a portion protruding from one end side S1 of the first placing frame 3A is placed on the auxiliary frame 10. Can be. Accordingly, it is possible to prevent the bedding m from slipping and dropping, and to improve appearance and usability. From such a viewpoint, it is desirable that the length of the auxiliary frame 10 in the height direction is preferably 10 cm or more.

  In addition, since the auxiliary frame 10 is rotatably connected to the first mounting frame 3A in this example, it may be bent with respect to the first mounting frame 3A in the vertical state as shown in FIG. it can. Particularly preferably, the auxiliary frame 10 is bent in a V-shape with respect to the first mounting frame 3A together with the bed 1 being folded from the expanded state to the vertical state.

  For example, at the time of the folding operation, as shown by a virtual line in FIG. 13, the auxiliary frame 10 approaches the vertical state while being aligned with the first mounting frame 3A by its own weight. Then, as the folding proceeds, in this example, one end of the auxiliary frame 10 comes into contact with the extension 24b of the first support leg 4A. When the folding is further advanced, the auxiliary frame 10 is bent with respect to the first mounting frame 3A with the pivot pin 64 as a fulcrum, and may be positioned on the extension 24B. As described above, in the present embodiment, the extension portion 24b of the L-shaped frame 24 of the first support leg 4A serves as the contact portion 55 that plays a role in bending the auxiliary frame 10. At this time, since the connecting portion 50 is provided closer to the bed center line X than the L-shaped frames 24 of the first support leg portion 4A, it does not interfere with folding.

  As described above, when folding, the auxiliary frame 10 is bent while contacting the contact portion 55, and in this example, does not protrude from the extension portion 24b of the first support leg 4A in the vertical state. Therefore, it is possible to fold compactly while preventing an increase in the folding height and the like, so that the storage property is good. Further, since the auxiliary frame 10 can be folded by the folding operation without any special operation, the usability is good.

  When the bed 1 is deployed from the vertical state to the deployed state, when the auxiliary frame 10 is separated from the contact portion 55 of the first support leg 4A, the auxiliary frame 10 rotates around the pivot pin 64 due to its own weight. Yes, it can be held horizontal again in the deployed state. As described above, no special operation is required when the auxiliary frame 10 is leveled, so that the usability is further improved.

  In the above embodiment, the auxiliary frame 10 is provided only on the first mounting frame 3A, but may be provided on the second mounting frame 3B. Further, for example, a spring means for urging the auxiliary frame 10 in a direction in which the auxiliary frame 10 is always horizontal may be provided.

  FIG. 14 shows another embodiment of the present invention.

  In the bed 1 of the present embodiment, the first and second mounting frames 3A and 3B include the peripheral frame 21 formed in a substantially rectangular shape, and the mattress 70 integrally fixed to the peripheral frame 21. The configured one is exemplified. The peripheral frame 21 has substantially the same configuration as that of the above-described embodiment. For example, a grid-like net material 71 is disposed in a space surrounded by the peripheral frame 21, and the mattress 70 is supported thereon. .

  As shown in FIG. 15 and FIG. 16 in an enlarged manner, the auxiliary frame 10 of the present embodiment is formed in a plate shape having substantially the same width and a small length as the first mounting frame 3A. The one formed by the material is shown. The auxiliary frame 10 is connected to the rear frame portion 21c of the first mounting frame 3A via the connecting portion 50, as in the embodiment. The connecting portion 50 of this embodiment includes a support bracket 73 fixed to the rear frame portion 21c, and a tilt arm 74 pivotally attached to the support bracket 73 to be tiltable and to which the auxiliary frame 10 is fixed.

  In this example, the support bracket 73 is made of a pipe material that rises at a small height substantially vertically from the rear frame portion 21c. And the like. Therefore, when the auxiliary frame 10 is not required, the auxiliary frame 10 can be easily removed, which helps to further improve the usability. However, the attachment is not limited to the screw means, and it goes without saying that the support bracket 73 may be fixed to the first mounting frame 3A in a non-detachable manner by welding or the like.

  A pivot hole 79 for pivoting the tilt arm 74 is provided at the upper end of the support bracket 73. The axial center line of the pivot hole 79 is parallel to the width direction of the bed. The contour of the upper end of the support bracket 73 is formed by an arc surface 73 a centered on the axial center of the pivot hole 79.

  The tilting arm 74 has a substantially U-shaped cross section as shown in FIG. 15 in this example, and left and right overhanging pieces 82 having a connecting hole 80 are provided at one end thereof. The overhanging pieces 82 are arranged on both sides of the upper end of the support bracket 73, and the connection hole 80 and the pivot connection hole 79 of the support bracket 73 are connected by a pivot 81 so as to be tiltable. You. The auxiliary frame 10 is fixed to the tilt arm 74 by using a screw 83.

  Further, the tilt arm 74 is provided with a contact piece 85 that comes into contact with the support bracket 73 and maintains the horizontal state when the auxiliary frame 10 is in the horizontal state in the unfolded state of the bed 1. As described above, in the present embodiment, the stopper 65 is formed by the contact piece 85 and the rear surface of the support bracket 73. Thereby, the auxiliary frame 10 can be held horizontally. In the present embodiment, the rigidity of the tilting arms 74 provided on both sides in the width direction of the bed is increased by being connected by a joining material 87.

  As shown by a solid line in FIG. 16, such an auxiliary frame 10 can be held horizontally at substantially the same height as the upper surface of the first mounting frame 3A (that is, the upper surface of the mattress 70) in the unfolded state. A substantially continuous bed surface longer than before can be formed on each of the upper surfaces of the second mounting frames 3A and 3B and the auxiliary frame 10. Also in this embodiment, when the bed 1 is folded vertically, it can be flipped up to the mattress 70 side as shown by phantom lines in FIGS. At the time of folding, the contact piece 85 of the tilt arm 74 moves along the arc surface 73a of the support bracket 73, thereby enabling smooth folding.

  17 to 21 show still another embodiment of the present invention.

  The bed 1 of this embodiment has a first bed frame 5A provided with a first support leg 4A at one end of a first mounting frame 3A, and an inverted T at one end of a second mounting frame 3B. And a second bed frame 5B provided with a character-shaped second support leg 4B. The first and second mounting frames 3A and 3B are substantially the same as those in the above-described embodiment.

  The first support leg 4A is integrally fixed to the first mounting frame 3A and is bent downward by a smooth arc from the handrail portion 90, and one caster wheel provided at the tip end thereof. And a first wheel 92 comprising: Since the arm body 91 is integrally fixed to the first mounting frame 3A, the first supporting leg 4A of this embodiment rotates with respect to the first mounting frame 3A when the bed 1 is expanded or folded. Move together without being able to.

  In the second support leg 4B, two caster wheels 95, 95 provided at a distance in the bed length direction are provided on a leg frame 94 having an inverted T shape. The leg frame body 94 is fixed to the second mounting frame 3B with a pin Ps2 so as to be relatively rotatable. Therefore, the second leg member 4B can rotate with respect to the second mounting frame 3B when the bed 1 is expanded or folded. Therefore, as shown in FIGS. 18 and 19, the bed 1 is folded to the vertical state.

  The auxiliary frame 10 is attached to the rear frame portion 21c of the first mounting frame 3A via the connecting portion 50, as in the embodiment. The connecting portion 50 of the present embodiment includes left and right support brackets 73 fixed to the rear frame portion 21c, and a tilt arm 74 pivotally attached to the support bracket 73 to be tiltable and to which the auxiliary frame 10 is fixed. .

  In this example, the support bracket 73 is made of an L-shaped pipe member integrally having a horizontal portion 73a and a vertical portion 73b, and one end of the horizontal portion 73a is fixed to the rear frame portion 21c. One end of a tilt arm 74 is rotatably fixed to the upper end of the vertical portion 73b of the support bracket 73. The auxiliary frame 10 is fixed to the other end of the tilt arm 74 via a joint frame 99. The tilting arm 74 has a U-shaped cross section with the lower part opened like the previous embodiment, and the horizontal state shown in FIG. 17 is held by the stopper member 65 (not shown in detail) or the like (that is, the auxiliary frame 10). Does not pivot below it.) As shown in FIG. 20, the auxiliary frame 10 can be flipped up and folded in this example. Therefore, the bed 1 can be downsized when stored.

  Further, in the bed 1 of the present embodiment, in a vertical state as shown in FIG. 19, the first wheels 92 provided on the first support legs 4A rise from the floor surface. For this reason, the first bed frame 5A is provided with auxiliary wheels 100 that contact the floor in a vertical state and support the first mounting frame 3A. The auxiliary wheels 100 facilitate folding and allow the bed 1 to travel along the floor F with good stability in a vertical state.

  The auxiliary wheel 100 of the present embodiment is provided on one end side S1 of the first bed frame 5A. Specifically, as shown in FIG. 20, it is fixed via a support rod 101 to a joining material 102 provided between a pair of support brackets 73. When the auxiliary wheel 100 is visually recognized from the outside, it tends to impair the beauty of the bed. However, in the bed 1 of the present embodiment, the auxiliary frame 10 is provided above the auxiliary wheels 100 in the unfolded state. Thereby, the entire auxiliary wheel 100 can be covered with the auxiliary frame 10 in the planar view in this example. This makes it difficult for the auxiliary wheels 100 to be visually recognized from the outside, thereby improving the beauty of the bed.

  As described above, the embodiments of the present invention have been described in detail. However, it is needless to say that the present invention is not limited to the above-described specific embodiments, and can be variously modified without departing from the gist of the present invention. For example, the auxiliary frame 10 may be provided with a cushion material or the like on its upper surface.

It is a perspective view of the deployment state of the folding bed which shows embodiment of this invention. It is the top view. It is a bottom view. It is the side view. It is a partial expansion perspective view of a 1st support leg part. It is a partial expansion perspective view of an intermediate support leg part. It is a schematic diagram of the folding bed of this embodiment. (A), (B) is sectional drawing of a reinforcement. It is a side view explaining the mounting bracket of a raising means. FIG. 3 is a partially enlarged plan view of FIG. 2. It is the A section enlarged view of FIG. It is the B view of FIG. It is a side view which shows the vertical state of the folding bed of this embodiment. It is an overall perspective view of a bed showing other embodiments. It is an enlarged perspective view near the auxiliary frame. It is sectional drawing. It is a side view showing the deployment state of the folding bed which shows other embodiments of the present invention. It is a side view in the middle of the folding. It is a side view of the vertical state. It is an expansion perspective view near an auxiliary frame. It is a side view which shows the deployment state of the conventional folding bed. It is a side view in the middle of the folding. It is a side view which shows the vertical state of the conventional folding bed.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Folding bed 2A, 2B Bedding 3 Mounting frame 3A First mounting frame 3B Second mounting frame 4 Support 4A First support 4B Second support 5A First bed frame 5B Second Bed frame 7 Intermediate leg 8 Joint member 9 Raising means 10 Auxiliary frame 55 Contact portion 92 First wheel 100 Auxiliary wheel

Claims (6)

A first bed frame provided with a first support leg at one end of a first placement frame on which bedding is placed;
A second bed frame provided with a second support leg at one end of a second placement frame on which the bedding is placed,
The other end where the first mounting frame and the second mounting frame face each other is placed in an unfolded state in which the first and second mounting frames are horizontally expanded, and the first and second support legs are connected to each other. A foldable bed which is connected so as to be foldable and deployable between a vertical state in which the first and second mounting frames approach each other and are folded in an inverted V-shape;
At least one end of the first mounting frame is connected to an auxiliary frame that receives bedding that protrudes from the one end of the first mounting frame by being horizontally held in the unfolded state,
The folding bed, wherein the auxiliary frame is bent with respect to the first mounting frame in the vertical state.   The folding bed according to claim 1, wherein the auxiliary frame is bent in a V-shape with respect to the first mounting frame together with the folding from the expanded state to the vertical state.   3. The folding bed according to claim 1, wherein the first leg has a contact portion that abuts on the auxiliary frame and folds the auxiliary frame when folded into the vertical state. 4.   The first support leg portion has a contact portion that contacts the auxiliary frame and folds the auxiliary frame when folding to the vertical state, and the auxiliary frame is horizontally held in the expanded state. The folding bed according to claim 1.   The folding bed according to any one of claims 1 to 4, wherein an upper surface of the auxiliary frame is substantially flush with an upper surface of the first mounting frame in the unfolded state. The first bed frame has, on the one end side, an auxiliary wheel that rises from the floor surface in the unfolded state and grounds on the floor surface in the vertical state in the vertical state to support the first mounting frame,
The folding bed according to any one of claims 1 to 5, wherein an auxiliary frame is provided above the auxiliary wheel in the unfolded state.

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