JP4162228B2 - Folding bed - Google Patents

Description

  The method of the present invention relates to a folding bed, and more particularly to a folding bed that is folded by an electric telescopic arm.

  2. Description of the Related Art Conventionally, a folding bed has been proposed that includes two bed frames that respectively support half of the bedding from the lower side and that both bed frames are pivotally attached so as to be folded in an inverted V shape. For example, Patent Literature 1 discloses a folding bed in which a lower end of an intermediate support leg provided on a joint for pivotally attaching two bed frames and a front end of each bed frame are connected by a spring, and this folding bed is disclosed. When folding, holding the handle provided near the pivot part of one of the bed frames and pulling the bed frame upward, the urging force that the spring tries to restore works on both bed frames. The bed can be folded from a horizontal state to a vertical state with a slight force.

JP 2002-177095 A

  However, in the conventional technology as described above, in order to fold the bed from the horizontal state to the vertical state, it is necessary to grab the handle portion provided on the bed frame and lift it upward. There was a problem that it was difficult for people without power to fold the bed.

  The present invention has been made in order to solve the above-described problems, and it is an object of the present invention to provide a foldable bed that can be foldable and reclined easily with a single electric telescopic arm that can reduce the number of manual operations. .

In order to achieve the above object, the folding bed according to claim 1 is configured such that the central portions of the first and second bed frames that respectively support approximately half of the bedding from the lower side thereof are pivotally attached to the joint material. The folding bed is pivotably mounted in an inverted V-shaped foldable state, and the base end of the reclining frame is pivotally mounted by a pin at a midway position in the longitudinal direction of the first bed frame. And an arm extending in the direction of the second bed frame below the reclining frame so that its tip is located between the pin and the joint member, and the tip of the back surface of the second bed frame to thereby pivotally one end of the telescopic telescopic arm operated by the electric driving mechanism, by pivotally the other end of the telescopic arm to the distal end of the arm, said beds From a horizontal state but became parallel to the installation surface, the and shorten the telescopic arm bed folded inverted V-shape, from the horizontal state, so that the said reclining frame and extending the telescopic arm is pivoted characterized in that it was.

Further, the folding bed according to claim 2, in addition to the configuration of the bed folding according to claim 2, over between the back side of both the bed frame, a pipe at a position not overlapping with the telescopic arm in plan view is The pipe is provided with one end pivotally attached to the back side of the second bed frame and the other end slidably held by a first pipe holder provided on the back side of the first bed frame; On the back side of the reclining frame, a position adjacent to the first pipe holder in a side view is provided with a second pipe holder that does not hold the pipe in the horizontal state and when the reclining frame rotates. When the bed is folded in an inverted V shape, the other end of the pipe slides with the first pipe holder as the end portions of the bed frames approach each other. The second pipe holder moves toward the second pipe holder, the other end of the pipe is always slidably held by the second pipe holder, and the rotation of the reclining frame is restricted.

Further, the folding bed according to the invention of claim 1, the first bed frame, the pivot portion side of the two bed frame is rotatably around the arm is fixed to extend downward to the rear side A reclining frame is provided, and the arm and the second bed frame are pivotally connected by a telescopic telescopic arm that is operated by an electric drive mechanism, and the telescopic arm extends from a horizontal state in which the bed is parallel to the installation surface. The reclining frame is rotated by extending the telescopic arm from the horizontal state. Accordingly, the reclining frame can be rotated and the bed can be folded with one telescopic arm, and the bed can be folded electrically, so that the folding work can be easily and easily performed.

Further, in the folding bed of the invention according to claim 2 , in addition to the effect of the invention of claim 1 , a pipe is provided between the back sides of both bed frames so as not to overlap with the telescopic arms in plan view. The pipe has one end pivotally attached to the back side of the second bed frame and the other end slidably held by a first pipe holder provided on the back side of the first bed frame. On the back side, in a position adjacent to the first pipe holder in a side view, a second pipe holder that does not hold the pipe in the horizontal state and when the reclining frame is rotated is provided, and the bed is formed in an inverted V shape. When folding, as the front ends of both bed frames approach, the other end of the pipe moves toward the second pipe holder while sliding with the first pipe holder, and the other end of the pipe is 2 The pipe holder is always slidably held and the rotation of the reclining frame is restricted. When the bed is folded, the direction of expansion and contraction of the telescopic arm, the pivot point of the arm and the telescopic arm, and the rotation center of the reclining frame are aligned in a straight line. Until it is folded into an inverted V-shape, a force acts to rise in the reclining frame due to the force acting in the direction in which the telescopic arm contracts, but when the pipe is held by the second pipe holder, the reclining frame You can prevent getting up.

  Hereinafter, a first embodiment of a folding bed embodying the present invention will be described with reference to the drawings. In the present embodiment, a folding bed having a reclining frame and having a reclining function will be described as an example. First, the structure of the folding bed 1 will be described with reference to FIGS. Here, FIG. 1 is a plan view of the folding bed 1, and FIG. 2 is a side view thereof. As shown in FIGS. 1 and 2, the folding bed 1 (hereinafter simply referred to as “bed 1”) includes a first bed frame 5 and a second bed frame 10 that are substantially U-shaped in plan view. The bedding 50 is pivotally attached by the joint member 20 with the opening side end portions facing each other, and a bedding 50 that can be bent at a substantially central portion in the length direction is placed thereon. Specifically, the first bed frame 5 includes a pair of length direction components 5a and 5a extending in the length direction of the bed 1 and a width direction component extending between the end portions of the length direction components 5a and 5a. 5b, and the second bed frame 10 similarly has a pair of longitudinal components 10a, 10a extending in the longitudinal direction of the bed 1, and the longitudinal components 10a, And a U-shaped shape having a width direction component 10b extending between the end portions of 10a.

  Leg portions 6 and 6 that support the bed 1 from the lower side extend downward from the vicinity of the corner where the longitudinal component and the transverse component of the first bed frame 5 intersect each other. A caster member 8 having two wheels 7 and 7 that are spaced apart in the length direction of the frame is provided at the tip of each leg portion 6. In addition, legs 11 and 11 that support the bed 1 from below extend downward from the vicinity of the corner where the longitudinal component and the transverse component of the second bed frame 10 intersect. . A caster member 13 having two wheels 12 and 12 that are spaced apart from each other in the length direction of the frame is provided at the tip of each leg portion 11, and the bed 1 is interposed via the caster members 8 and 13. Can move smoothly on the installation surface (not shown). In addition, the space | interval of the leg parts 11 of the 2nd bed frame 10 is narrower than the space | interval of the leg parts 6 of the 1st bed frame 5, Thereby, at the time of folding of the bed 1 mentioned later, Both bed frames can be folded close to each other without causing the two caster members to interfere with each other.

  Then, both the length direction components 5a, 5a of the first bed frame 5 and the length direction components 10a, 10a of the second bed frame 10 are pivotally connected by the joint material 20 via the pin P1. Yes. Further, an intermediate leg 25 formed in a substantially U-shape opening downward is provided below the joint material 20. The intermediate leg portion 25 is composed of a horizontal frame member 25a extending in the width direction across the pair of joint members 20, and two vertical frame members 25b extending downward from both ends of the horizontal frame member 25a. In addition, both the bed frames and the leg portions 11 are supported from the lower side.

  A reclining frame 15 that can rotate integrally with the bedding 50 is provided in the bedding 50 above the first bed frame 5. The reclining frame 15 includes a pair of longitudinal components 15a and 15a extending in parallel with the longitudinal components 5a and 5a of the first bed frame 5 and a substantially central portion between the longitudinal components 15a in the bedding 50. The intermediate component 15b extending in parallel with these components, and the first width direction component 15c and the second width direction component 15d extending in the width direction of the bed 1 so as to connect the end portions of the respective components. . The length direction components 15a and 15a are respectively close to the length direction components 5a and 5a of the first bed frame 5 on the upper inner side, and the first and second width direction components 15c and 15d are respectively Located on the base end side (pivoting portion side) and the tip end side of the bed frame 5, the reclining frame 15 has a substantially Japanese character shape.

  In the bedding 50 above the first bed frame 5, a substantially rectangular frame 51 is further provided adjacent to the reclining frame 15. The frame 51 includes a width direction component 51a extending in the width direction of the bed 1 in the vicinity of the pivoting portions of both bed frames, and length direction components 5a and 5a of the first bed frame 5 from both ends of the width direction component 51a. The first bed frame 5 has a substantially U-shaped configuration composed of length direction components 51b and 51b extending in the direction of the reclining frame 15 on the upper side of the first bed frame 5 via both length direction components 51b and 51b. It is fixed. Then, the distal ends of both the longitudinal components 51b and 51b are adjacent to the outside of the distal ends of both the longitudinal components 15a and 15a of the reclining frame 15, and the distal ends of both members are pivotally attached by the pin P2. Thus, the reclining frame 15 can be rotated with respect to the frame 51.

  Specifically, the reclining frame 15 is directed from the pivotal portion of both bed frames toward the distal end of the first bed frame 5 and advances approximately one third of the length of the longitudinal component 5a of the first bed frame 5. It can be turned around the center of rotation, specifically, it can be turned by a predetermined angle inclined downward in the direction of the second bed frame 10. In the present embodiment, the bedding 50 and the reclining frame 15 are integrated, but the bedding may be raised by placing the bedding on the reclining frame and making them separate.

  In addition, an elongated plate-like arm 16 extending toward the second bed frame 10 is provided on the back side of the intermediate component 15b of the reclining frame 15, and the distal end portion 16a of the arm 16 is seen in a side view. , Located in the region between the pivots of the pin P2 and both bed frames. The other end 30b of the telescopic arm 30 whose one end is rotatably attached to the substantially central portion of the width direction component 10b of the second bed frame 10 is pivotally attached to the tip portion 16a of the arm 16 by a pin P3. . Although not shown in detail, the telescopic arm 30 is operated by an electric drive mechanism including components such as an electric motor 35, an output shaft, a gear, and a wheel, and the slide pipe 32 is relatively positioned with respect to the fixed outer cylinder 31. It expands and contracts by advancing and retreating.

  Then, as shown in FIG. 3, the arm 16 provided on the back side of the reclining frame 15 is extended by extending the telescopic arm 30 so as to pull out the slide pipe 32 from the fixed outer cylinder 31 from the state where the bed 1 is horizontal. The tip 16a is pushed so as to move downward on the left side, and the reclining frame 15 and the bedding 50 are raised accordingly. Further, by contracting the slide pipe 32 in the fixed outer cylinder 31 of the telescopic arm 30 from that state, the tip 16a of the arm 16 provided on the back side of the reclining frame 15 is pulled back so as to move upward on the right side. The bed 1 returns to the original horizontal state.

  After the bed 1 is in a horizontal state (see FIG. 2), when the telescopic arm 30 is further contracted, as shown in FIGS. 4 and 5, the first bed frame 5 and the second bed frame 10 are In order to form an inverted V shape together, the respective tip parts are rotated around the part pivotally attached by the joint material 20 so as to approach each other. At this time, the leg portions attached to each bed frame are rotatable with respect to the bed frame, and can be folded while the wheels are always in contact with the installation surface (not shown). ing. When the telescopic arm 30 is further contracted, the pair of legs 11, 11 of the second bed frame 10 are sandwiched between the pair of legs 6, 6 of the first bed frame 5, as shown in FIG. The bed frames are brought into contact with each other until the two caster members wrap in the side view.

  As described above, in the folding bed 1 of the present embodiment, the folding bed 30 can be easily folded by the telescopic arm 30 operated by the electric drive mechanism, so that the folding work can be easily performed without manpower. Also, those who are relatively weak can easily perform the folding work. Further, since not only folding but also reclining can be performed by one telescopic arm 30, it is not necessary to provide a separate mechanism for rotating the reclining frame.

  Next, the folding bed 100 of 2nd Embodiment is explained in full detail with reference to figures. In the first embodiment described above, when the bed 1 is folded by contracting the telescopic arm 30, the telescopic direction of the telescopic arm 30 and the pivot of the pin P <b> 2 (the frame 51 and the reclining frame 15 are shown in a side view shown in FIG. 4. After the pinned portion 3 and the pin P3 (the pivotal portion between the tip 16a of the arm 16 and the telescopic arm 30) are aligned, the force that the telescopic arm 30 tries to contract is reduced. It is transmitted to the reclining frame 15 with P3 interposed therebetween, and acts as a force for the reclining frame 15 to rise around the pin P2, so that it is necessary to suppress the force for the reclining frame 15 to rise by hand or the like. Therefore, in this second embodiment, a folding bed will be described in which the rising force can be suppressed as the telescopic arm 30 expands and contracts. In addition, in 2nd Embodiment, the same code | symbol is attached | subjected to the same member as the folding bed 1 of 1st Embodiment.

  As shown in FIGS. 7 and 8, in the folding bed 100 (hereinafter simply referred to as “bed 100”) of the second embodiment, it extends between the first bed frame 5 and the second bed frame 10. The structure is different from the folding bed 1 of the first embodiment in that the pipe 70 is provided, and the other configuration is the same as the folding bed 1 of the first embodiment. In the present embodiment, another width direction component 10 c is further provided on both bed frame pivoting portions of the second bed frame 10. The width direction component 10c extends in parallel with the width direction component 10b, and is attached to a position in the vicinity of the telescopic arm 30 on the back side thereof so as to rotatably hold one end of the pipe 70 provided between the two bed frames. Is provided. The other end of the pipe 70 is held on the back side of the first bed frame 5 by a pipe holder described later, and the pipe 70 is provided so as to be always parallel to the telescopic arm 30 in a plan view. Yes.

  The pipe 70 extends in the direction of the first bed frame 5, and the tip 70 a extends beyond the arm 16 to the vicinity of the leg portion 6 of the first bed frame 5 in a side view. And the front-end | tip 70a of the pipe 70 is in the back side of the width direction component 5c further provided in the position close | similar to the width direction component 5b across the length direction components 5a and 5a of the 1st bed frame 5, 1st bed frame 5 The pipe holder 75 holds the slidable state. The first pipe holder 75 is provided on the back side of the width direction component 5c, and although not shown in the drawing, the two vertical portions extending downwardly spaced apart by substantially the same length as the diameter of the pipe 70, The lower ends of both vertical portions are connected in a semicircular shape, and are formed in a ring shape composed of a semicircular support portion that supports the lower peripheral surface of the pipe 70. When the bed 100 is in a horizontal state, both ends of the pipe 70 are held by the mounting member 65 and the first pipe holder 75 and are substantially parallel to the installation surface (not shown) of the bed 100. ing.

  Further, as shown in FIGS. 7 and 9, on the back side of the reclining frame 15, a second pipe that holds the pipe 70 in substantially the same shape as the first pipe holder 75 and cooperates with the holder 75. A pipe holder 76 is provided. The second pipe holder 76 is provided on the back side of the third width direction component 15e further provided near the second width direction component 15d between the length direction components 15a and 15a of the reclining frame 15. It is provided at a position overlapping the first pipe holder 75 when the bed 100 is viewed from the front or the back. The second pipe holder 76 is positioned adjacent to the first pipe holder 75 and does not interfere with the pipe 70 when the bed 100 is in a horizontal state. When contracted, the tip 70 a of the pipe 70 slides with the first pipe holder 75 and is also held by the second pipe holder 76. However, when the reclining frame 15 is raised, the first bed frame 5 and the second bed frame 10 are kept horizontal, so that the pipe 70 does not interfere with the rising of the reclining frame 15.

  The bed 100 is reclined and folded by the electric telescopic arm 30 in the same manner as the folding bed 1 of the first embodiment. As shown in FIG. 9, by extending the slide pipe 32 from the fixed outer cylinder 31 of the telescopic arm 30, the tip 16a of the arm 16 provided on the back side of the reclining frame 15 is pushed so as to move downward on the left side. Accordingly, the reclining frame 15 and the bedding 50 rise up. Further, by contracting the slide pipe 32 in the fixed outer cylinder 31 of the telescopic arm 30, the tip 16a of the arm 16 provided on the back side of the reclining frame 15 is pulled back so as to move upward on the right side, and the bed 100 Will return to its original level.

  Further, as shown in FIG. 10, the telescopic arm 30 is further contracted from the horizontal state of the bed 100, so that the first bed frame 5 and the second bed frame 10 are joined together to form an inverted V shape. Rotation is performed so that the respective tip portions approach each other around the portion pivotally attached by the material 20. When the leading ends of both bed frames approach each other, the leading end portion 70a of the pipe 70 held only by the first pipe holder 75 in the horizontal state becomes the leading end portion of the first bed frame 5 (the left end portion in the figure). ) Direction and is also held by the second pipe holder 76. The state shown in FIG. 10 (stretching direction of the telescopic arm 30, the pin P2 (the pivoting portion between the frame 51 and the reclining frame 15), and the pin P3 (the pivoting portion between the tip 16a of the arm 16 and the telescopic arm 30) After that, with the folding of the bed 100, the tip 70a of the pipe 70 slides on the first pipe holder 75 and further the tip of the first bed frame 5 It moves in the direction of the part.

  Although not shown, when the telescopic arm 30 is further contracted, the distal end portion 70a of the pipe 70 is further moved toward the distal end portion of the first bed frame 5, and the first pipe holder 75 and the first The pair of caster members 13 and 13 of the second bed frame 10 are sandwiched between the pair of caster members 8 and 8 of the first bed frame 5 while being held by the two pipe holders 76. The bed frame ends until the legs wrap in the side view until the legs wrap, and the folding is completed.

  As described above, in the folding bed 100 of the present embodiment, the effects obtained in the folding bed 1 of the first embodiment, such as being easily foldable by the telescopic arm 30 operated by the electric drive mechanism, are obtained. In addition, when the bed 100 is folded, the pipe 70 provided between the two bed frames is always held by the second pipe holder 76, whereby the rotation of the reclining frame 15 is restricted. I won't get up. Therefore, there is no need to manually press the force for raising the reclining frame 15, and the effect that the folding operation can be performed more easily can be obtained.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible. For example, although the folding bed of the present embodiment includes a reclining frame and can be reclined, a telescopic arm as described above may be used for a bed that does not have a reclining function and can only be folded. In this case, an arm to which one end of the telescopic arm is attached is provided on the back side of the first bed frame. In addition, regarding the folding bed having a reclining function, the reclining frame is not limited to the shape of a Japanese character as in the present embodiment, but has various shapes depending on the purpose such as high rigidity and light weight. In addition, it is not necessary to integrate the reclining frame and the bedding.

  Furthermore, the attachment positions of the both ends of the telescopic arm and the attachment positions of both ends of the pipe are not limited to the positions exemplified in the present embodiment, and can be appropriately changed as long as there is no hindrance to the folding, and the number thereof is also changed. Is possible. Further, the mechanism for preventing the reclining frame from rotating is not limited to the one using the pipe as in this embodiment. In addition, the shape of the arm provided on the back side of the reclining frame does not necessarily have to extend in the second bed frame direction as shown in the present embodiment. For example, as shown in FIG. 11, an arm 115 may be provided on the back side of the reclining frame 15 so as to extend vertically downward in the state where the bed 101 is horizontal. In this case, of course, the pivotable angle of the reclining frame 15 becomes small, but the shape of the arm 115 can be simplified.

It is a top view of the folding bed 1 of 1st Embodiment. It is a side view of the folding bed. It is a side view which shows the state which the reclining frame 15 of the folding bed 1 stood up. It is a side view which shows the process in which the folding bed 1 is folded. It is a side view which shows the process in which the folding bed 1 is folded. It is a side view which shows the state by which the folding bed 1 was folded completely. It is a top view of the folding bed 100 of 2nd Embodiment. 2 is a side view of the folding bed 100. FIG. It is a side view which shows the state which the reclining frame 15 of the folding bed 100 stood up. It is a side view which shows the process in which the folding bed 100 is folded. It is a side view of the bed 101 provided with the arm 115 extended perpendicularly downward.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Folding bed 5 1st bed frame 10 2nd bed frame 15 Reclining frame 16 Arm 30 Telescopic arm 35 Electric motor 65 Mounting member 70 Pipe 75 1st pipe holder 76 2nd pipe holder 100 Folding bed

Claims (2)

This is a folding bed in which the central portions of the first and second bed frames that support approximately half of the bedding from the lower side are pivotally attached to the joint material, respectively, and are pivotably attached in a reverse V-shape. And
The base end of the reclining frame is pivotally attached by a pin at a midway position in the longitudinal direction of the first bed frame ,
The arm extending in the direction of the second bed frame is fixed below the back side of the reclining frame so that the tip is located between the pin and the joint material,
By pivotally attaching one end of a telescopic telescopic arm operated by an electric drive mechanism to the front end of the second bed frame, and pivoting the other end of the telescopic arm to the front end of the arm,
From a horizontal state where the bed becomes parallel to the installation surface, the and shorten the telescopic arm bed folded inverted V-shape, from the horizontal state, wherein the reclining frame and extending the telescopic arm is pivoted Folding bed characterized by doing so . A pipe is provided at a position that does not overlap the telescopic arm in plan view across the back sides of both bed frames,
One end of the pipe is pivotally attached to the back side of the second bed frame, and the other end is slidably held by a first pipe holder provided on the back side of the first bed frame.
On the back side of the reclining frame, a position adjacent to the first pipe holder in a side view is provided with a second pipe holder that does not hold the pipe in the horizontal state and when the reclining frame rotates.
When the bed is folded in an inverted V shape, the second pipe holder is slid while the other end of the pipe slides with the first pipe holder as the front ends of the bed frames approach each other. 2. The folding bed according to claim 1, wherein the second end of the pipe is slidably held by the second pipe holder, and the rotation of the reclining frame is restricted. .

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