JP2005124651A - Folding bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folding bed which can make comfortable reclining conditions and raise user-friendliness. <P>SOLUTION: A folding bed is provided with a bedding receiving frame which is attached to a bed main frame which can fold in an inverted V and has bedding on it, and the bedding receiving frame has a buttocks supporting frame section which is non-tilting and receives the sleeper's buttocks, an upper body supporting frame section which is attached at the head side end of the buttocks supporting frame section so that it can rise/fall and receives the upper half of the body, and a leg supporting frame section which is attached at the leg side end of the buttocks supporting frame section so that it can tilt and can fold in an inverted V, and the buttocks supporting frame section, the upper body supporting frame section and the leg supporting frame section are arranged in a longitudinal direction of the bed main frame, and includes a driving means which connects an upper half body rise/fall means which makes the upper body supporting frame section rise/fall and a leg acting means which makes the leg supporting frame section tilt/fold with an association means using a corded thing which reverses and makes them have associated actions and operates the upper body supporting frame section or the leg supporting frame section is provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a folding bed that can be smoothly folded and has high comfort.

  In recent life habits, lying down on a bed, watching TV, reading, etc. are frequently performed. In view of such a use form of the bed, a bed that is provided with a reclining frame that supports the upper body on a part of the bed portion, and the reclining frame is tilted and raised to improve usability is used. However, in this type of bed, the upper body rises while being supported by a reclining frame, but the lower body maintains a horizontally stretched state. I often felt a feeling.

  Therefore, as shown in FIG. 16, the applicant of the present invention has a folding bed in which the front main frame a and the rear main frame b are foldably connected to each other so that the reclining frame c can be tilted rearward and downward on the front main frame a. The first frame d is pivotally attached to the front end of the rear main frame b so as to be tilted forward and downward, and the second frame e is pivoted to the rear end of the first frame d so as to be folded in an inverted V shape. Proposed bed. The bed connects a front hanging arm f suspended from the rear end of the reclining frame c and a rear hanging arm g suspended from the rear end of the second frame e with a string-like body h. As a result, in this folding bed, the up-and-down movement of the reclining frame c that supports the upper body and the folding movement of the first frame d and the second frame e are linked by the string-like body h, so that the upper body rises up. In addition, the lower body could be supported in an easy posture in an inverted V shape (see, for example, Patent Document 1).

JP 2000-125991 A

  However, in the conventional folding bed, the string-like body h is constructed over a relatively long span between the front hanging arm f at the rear end of the reclining frame c and the rear hanging arm g at the rear end of the second frame. It was long. When the bed is folded, as shown in FIG. 17, the string-like body h is sandwiched between them, and the operation is hindered. Therefore, the folding may not be completed, and the string-like body h may be damaged by the pinching at the time of folding. It was found that there was room for further improvement, such as easy maintenance and maintenance.

  The present invention eliminates the problems of the folding bed described above, and basically uses the interlocking means using the reversing string-like body to connect the upper body raising means and the leg operation means to perform the interlocking operation. An object of the present invention is to provide a folding bed that can be smoothly folded and can be easily maintained.

  In order to achieve the above object, the invention according to claim 1 is a folding bed that is attached to a bed main frame that can be bent in an inverted V shape and includes a bedding receiving frame on which the bedding is placed, The receiving frame is a non-tilting and a heel support frame portion that receives the buttocks of the sleeping person, an upper body support frame portion that is attached to the head side end of the heel support frame portion so as to be able to tilt and receive the upper body, and the heel support frame A leg support frame that is attached to the leg side end of the part so as to be tiltable and can be bent in an inverted V shape, and the heel support frame, the upper body support frame, and the leg support frame The section is arranged in the longitudinal direction of the bed main frame, and reverses the upper body raising / lowering means for raising / lowering the upper body supporting frame and the leg operating means for tilting / folding the leg supporting frame. Connected using interlocking means using string-like body, interlocked operation, and Half body supporting frame unit, or characterized in that comprises driving means for operating the leg support frame portion.

  Further, in the invention according to claim 2, the upper body raising / lowering means engages with the upper body support frame portion extending from the raising / lowering main shaft and extending in the horizontal direction pivotally supported by the bed main frame. The raising / lowering arm includes a raising / lowering arm that raises and lowers the upper body support frame, and one or more raising / lowering levers extending from the raising / lowering spindle. The folding bed according to claim 1, wherein one end of the string-like body is coupled to the folding bed.

  According to a third aspect of the present invention, the upper body support frame portion includes a back support portion that receives the back and a head support portion that is lifted from the back support portion and receives the head, and the raising and lowering arm is the head support. The folding bed according to claim 2, wherein the upper body support frame portion is engaged with the head support portion by being coupled to the head support portion via a lifting link.

  According to a fourth aspect of the present invention, in the folding bed according to the second aspect, the tip of the raising / lowering arm is engaged with the back of the upper body support frame so as to be relatively movable.

  According to a fifth aspect of the present invention, the driving means is a linear electric motor or a manual lever that raises and lowers the upper body support frame so as to be locked at an inclined position using a ratchet. Item 5. The folding bed according to any one of Items 1 to 4.

  The invention described in claim 6 is a folding bed that is attached to a bed main frame that can be bent in an inverted V shape and includes a bedding receiving frame on which the bedding is placed, the bedding receiving frame being non-tilting and A heel support frame that receives the bedside of the sleeping person, and an upper body support frame that can be moved up and down at the head side end of the heel support frame, and can be locked at an inclined position using a ratchet, and receives the upper body A leg support frame portion that is attached to the leg side end of the heel support frame portion so as to be tiltable and can be bent in an inverted V shape, and the heel support frame portion and the upper body support frame portion And the leg support frame portion is arranged in the vertical direction of the bed main frame, and a protruding lever whose one end is fixed to the upper body support frame portion, and a leg operation that tilts and bends the leg support frame portion Connected using interlocking means using a string-like body that reverses the means Characterized in that it is operated.

  According to a seventh aspect of the present invention, the leg support frame portion can be bent into a first leg frame on the side of the heel support frame portion and an inverted V-shape with respect to the first leg frame. A second leg frame that is pivotally supported by one leg frame, and the leg support frame part passes through the first leg frame and laterally passes through the side of the heel support frame part. One or more legs attached to the bed main frame by being fixed to a leg rotation shaft that is pivotally supported by a frame so that the leg operating means is fixed to the leg rotation shaft. It is a lever, The said string-like body adheres to this leg lever, It is a folding bed in any one of Claims 1-6 characterized by the above-mentioned.

  In the folding bed according to claim 1, since the string-like body constituting the interlocking means for connecting the upper body raising means and the leg movement means is inverted, it is arranged relatively compactly at an intermediate position of the bed. . Accordingly, as in the conventional folding bed described above, the string-like body that is installed between the front and lower arms of the reclining frame and the rear and lower arms of the second frame is disposed up to the leg side end of the bed. Is folded between the movable parts when it is folded, the folding operation is not hindered, and the folding operation can be performed smoothly. In addition, since the cord-like body is not damaged or cut by the pinching, troubles such as malfunctions can be prevented, and maintenance is facilitated. In addition, since the legs are supported in an inverted V shape according to the rising angle of the upper body, a natural posture can be maintained and a comfortable reclining state can be created. In addition, when the driving means is operated, the interlocking means automatically forms the optimum reclining state, which is easy to use.

  Further, in the folding bed according to claim 6, since the string-like body constituting the interlocking means is inverted, it is disposed relatively compactly at the intermediate position of the bed and is sandwiched between the movable parts to prevent the folding operation of the bed. Since the folding operation is smooth, and the cord-like body is not damaged or cut by the pinching, malfunction is prevented and maintenance is facilitated. In addition, the leg can be supported in an inverted V shape according to the angle at which the upper body rises, and a comfortable reclining state can be created. Since the reclining state is automatically formed, it is easy to use.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a folding bed 1A of the present embodiment, and FIG. 2 is a plan view thereof. The folding bed 1 </ b> A of the present embodiment is exemplified by a bed that includes a bed main frame 2 and a bedding receiving frame 3 that is arranged on the bed main frame 2 and on which the bedding is placed.

  The bed main frame 2 is configured by connecting a first bed frame half 31 and a second bed frame half 32 so as to be bent in an inverted V shape.

  The first bed frame half 31 includes a main frame 31a obtained by bending a frame material into, for example, a substantially U shape or a rectangular shape (in this example, a U shape) in plan view, and reinforcing members 31b and 31c extending vertically and horizontally. Are integrally fixed. The first bed frame half 31 has a length substantially half the bed length (for example, 900 to 1000 mm). The inner end portion of the first bed frame half 31 located on the intermediate side in the bed length direction is pivotally attached to the joint member 33 by using a pin or the like. Further, on the outer end side of the first bed frame half 31, first leg members 34, 34 are provided on both sides in the width direction of the bed.

  The first leg members 34, 34 are constituted by a leg frame 34a having an inverted T-shape in this example, and caster wheels 34b attached to the lower part thereof. The leg frame 34a is attached to the first bed frame half 31 so as to be rotatable with a pin. Further, the first leg members 34 on both sides are integrally fixed by a connecting plate 35 extending in the lateral direction below the first bed frame half 31. Further, in this embodiment, an example is shown in which a decorative finishing board 36 is attached to the head side end portion of the first bed frame half 31.

  As with the first bed frame half 31, the second bed frame half 32 is integrally fixed with a main frame 32 a obtained by bending a frame material into a substantially U shape and reinforcing members 32 b and 32 c extending vertically and horizontally. Formed. The second bed frame half 32 also has a length about half the bed length. The second bed frame half body 32 is pivotally attached to the joint member 33 so as to be rotatable by a pin at an inner end portion located at an intermediate portion in the vertical direction. In the present embodiment, the first and second bed frame halves 31 and 32 are supported by different shafts that are separated in the vertical direction, but may be supported by the same shaft.

  A second leg member 38 is fixed to the main frame 32a of the second bed frame half body 32 via a mounting shaft 37 protruding in the lateral direction. Thereby, it can prevent that the 1st, 2nd leg members 34 and 38 interfere when folding. The second leg member 38 also serves as a handrail by a portion protruding in the height direction from the second bed frame half body 32, and a wheel 39 for grounding is provided at an end portion extending downward. Thus, the first and second head frame halves 31 and 32 can be smoothly moved during folding. Moreover, in this embodiment, what attached the decorative board 43 by which the makeup | decoration finish was carried out to the leg side edge part of the 2nd bed frame half body 32 is illustrated.

  The joint members 33, 33 provided on both sides in the bed width direction are integrally fixed by a connecting member 40, and an intermediate support leg 41 is fixed to the connecting member 40. The intermediate support leg 41 is in contact with the floor surface in a horizontal state. Accordingly, the bed load is supported by the first and second leg members 34 and 38 and the intermediate support leg portion 41, and the stability during use is enhanced. Further, the folding bed 1 </ b> A pivotally supports the first bed frame half 31 at one end of the joint member 33 and the second bed frame half 32 at the other end of the joint member 33. As a result, the first bed frame half body 31 and the second bed frame half body 32 can be folded in a vertical position so that the folding bed 1A can be stored compactly.

  For example, a tension spring 42 is installed between the intermediate support leg 41 and the first bed frame half 31 and between the intermediate support leg 41 and the second bed frame half 32 to reduce the folding effort. Can pass. And the tension spring 42 reduces the operation force at the time of the folding. The extension position of the tension spring 42 can be changed, and the folding bed 1A can be automatically folded and unfolded using an electric motor or the like. Further, the joint member 33 has a substantially ring-shaped handle 44 protruding laterally on the side surface thereof, and the folding operation of the bed can be easily and safely performed by gripping the handle 44. it can.

  The bedding receiving frame 3 is arranged in the longitudinal direction of the bed main frame 2, and is an upper body support frame portion 5 for receiving the upper body, a heel support frame portion 4 for receiving the bedside of the sleeping person, and a leg support for supporting the leg portions. It consists of a frame part 6. The lateral width of the bedding receiving frame 3 is wider than that of the bed main frame 2 and is, for example, about 800 to 1800 mm.

  The eaves support frame portion 4 includes a frame body 4A in which pipe members or the like are combined in a horizontally long rectangular shape, a wire net-like underlay material 4B disposed in a space surrounded by the frame body 4A, and a vertical direction of the folding bed 1A. The extending reinforcing material 4C is fixed to the leg side of the first bed frame half 31 of the bed main frame 2 using bolts or the like. The eaves support frame portion 4 is formed with a vertical length of about 160 to 240 mm.

  The upper body support frame portion 5 is disposed on the head side of the heel support frame portion 4, and in this embodiment, includes a back support portion 15 that receives the back and a head support portion 16 that receives the head.

  The back support portion 15 includes a frame body 15A in which pipe members and the like are combined in a horizontally long rectangular shape, an underlay material 15B that is placed in a space surrounded by the inside of the frame body 15A and on which a bedding can be placed, and a vertical length of the folding bed 1A. And a reinforcing material 15C extending in the direction. Further, as shown in FIG. 5, the leg-side end of the back support 15 can be moved up and down by using a connecting metal 45 and a pin P1 at the head-side end of the heel support frame 4. It is connected. In addition, since the back support part 15 is not fixed to the first bed frame half 31 at other portions, the horizontal position supported by the main frame 31a of the first bed frame half 31 below, It can be bent with respect to the heel support frame portion 4 and change to a position where it rises from the first bed frame half 31. In this embodiment, the back support portion 15 is connected to the first bed frame half 31 directly on the first bed frame half body 31 while the leg side end portion is connected to the head side end portion of the heel support frame portion 4 in a tiltable manner. You may make it connect so that it can tumble. The back support 15 is formed to have a vertical length of about 320 to 480 mm.

  The head support portion 16 includes a frame body 16A in which pipe members and the like are combined in a horizontally long rectangular shape, an underlay material 16B that is placed in a space surrounded by the inside of the frame body 16A and on which a bedding can be placed, and a vertical length of the folding bed 1A. The reinforcing material 16C extends in the direction, and is arranged on the head side of the back support portion 15 with a small gap. The head support 16 has a vertical length suitable for placing the user's head, and is formed to have a thickness of about 230 to 350 mm, for example.

  The upper body support frame portion 5 of this embodiment is exemplified by the back support portion 15 and the head support portion 16 connected via a connector J. As shown in an enlarged view in FIG. 4, the connector J includes a cylindrical portion 46 provided on the head side of the back support portion 15 that extends vertically, and a slide shaft 47 that can slide the cylindrical portion 46 up and down. The back support part 15 and the head support part 16 can be connected so that they can be displaced in the height direction and can be tilted.

  The tubular portion 46 is attached to the outer frame portion 15A1 extending in the lateral direction on the head side of the frame body 15A of the back support portion 15 via a mounting bracket 48, for example. The mounting bracket 48 includes a mounting base 48a which is integrally fixed to the lower portion of the outer frame portion 15A1 by welding, bolts and the like and protrudes to the head side, and one end around a horizontal axis transverse to the mounting base 48a. The swinging portion 48b is provided so as to be tiltable at a small angle and to which the cylindrical portion 46 is fixed on the other end side.

  In the present embodiment, the mounting base 48a is made of grooved steel with a lower release. Further, the swinging portion 48b is formed of a substantially U-shaped metal fitting in a plan view in which vertical pieces 48b1 and 48b1 separated in the bed width direction are connected by an arc piece 48b2. In this example, for example, the cylindrical portion 46 is welded to the inner peripheral surface of the arc piece 48b2. The cylindrical portion 46 is made of a pipe member having a circular cross section, and extends downward without protruding from the upper surface of the frame body 15A of the back support portion 15.

  The slide shaft 47 has a shaft portion 47a having a circular cross section and a large-diameter retaining portion 47b provided at the lower end thereof, and the upper end portion is the back of the frame body 16A of the head support portion 16. On the support portion 15 side, it is integrally fixed to the lower surface of the inner frame portion 16A1 extending in the lateral direction by welding, bolts or the like. The shaft portion 47 a has an outer diameter slightly smaller than the inner diameter of the cylindrical portion 46, and can smoothly slide in the cylindrical portion 46. Further, the retaining portion 23 b can regulate the maximum slide amount of the slide shaft 47 by contacting the lower end surface of the cylindrical portion 46.

  In such a connector J, when the head support portion 16 is pushed upward by the upper body raising / lowering means 7, the slide shaft 47 can be raised with respect to the tubular portion 46. Thereby, as shown in FIG. 4, the head support 16 can be raised with a step with respect to the back support 15. In addition, in this form, since the said connector J is distribute | arranged to the lower part of the upper body support frame part 5, it is preferable at the point which a user's hand does not reach and does not stuff a finger.

  The folding bed 1 </ b> A of the present embodiment includes an upper body raising / lowering means 7 for raising and lowering the upper body support frame 5, a lifting link 17, and a driving means 11.

  As shown in FIGS. 1 and 3, the upper body raising / lowering means 7 includes a raising / lowering spindle 12, a pair of raising / lowering arms 13, 13 extending from the raising / lowering spindle 12, and a raising / lowering lever 14. It is configured to include.

  The raising / lowering main shaft 12 is formed of a circular pipe extending in the horizontal direction between the reinforcing members 31b, 31b of the first bed frame half body 31, and both ends thereof are between bearing pieces 49, 49 provided on the reinforcing member 31b. It is pivotally supported.

  The base of the raising / lowering lever 14 is fixed to the raising / lowering main shaft 12, and in this embodiment, the raising / lowering lever 14 includes a first raising / lowering lever 14a and a second raising / lowering lever 14b. The first raising / lowering lever 14a is composed of a pair of long plates having a small interval, and has a mounting portion 14a1 formed at a tip thereof with a small interval through a step portion.

  In the present embodiment, the driving means 11 is a straight line using a ball screw mechanism including a main body 18a having an electric motor and the like, and a rod 18b that can be expanded and contracted (in / out) from the main body 18a by forward and reverse rotation of the electric motor. It consists of an electric exerciser 18. The linear electric exerciser 18 has a main body portion 18a pivotally attached to the reinforcing member 31c of the first bed frame half body 31 via a bracket or the like, and the rod 18b is connected to the first raising / lowering lever 14a. Is attached to the attachment portion 14a1 by a pin P2 so as to be rotatable, and is supported to be tiltable in a vertical plane. When the linear electric exerciser 18 expands and contracts the rod 18b, the first raising / lowering lever 14a tilts and the raising / lowering main shaft 12 rotates, so that the raising / lowering arm 13 tilts in the vertical plane. .

  As shown in FIG. 4, the lifting link 17 is pivotally attached to the raising / lowering arm 13 through a long hole 17 c provided at one end, and the other end is a reinforcing member 16 </ b> C of the head support portion 16. Are pivotally attached to each other via a metal fitting 50. Further, in this embodiment, the lifting link 17 includes first and second lifting links 17a and 17b having the same length, and thereby, the raising and lowering arm 13, the first and second lifting links 17a and 17b, and the head. A parallel link mechanism is formed with the support portion 16. In the parallel link mechanism of the present embodiment, the raising / lowering arm 13 and the first and second lifting links 17a and 17b are pivotally connected via the long hole 17c. Further, it is preferable that the parallel link mechanism, the connector J and the like can be prevented from being twisted when the upper body support frame portion 5 is tilted, and that these operations are smooth.

  The leg support frame portion 6 is attached to the second bed frame half 32, and in this embodiment, a first leg small frame 20 disposed on the leg side of the heel support frame portion 4 and a second leg frame It consists of a leg frame 21.

  The first leg frame 20 includes a frame body 20A in which pipe members and the like are combined in a horizontally long rectangular shape, an underlay material 20B on which a bedding can be placed, and a folding bed. And a reinforcing material 20C extending in the longitudinal direction of 1A. Further, the second bed frame half body 32 can rotate a leg rotation shaft 22 formed of a circular pipe passing in the horizontal direction between both head side end portions of the substantially U-shaped main frame 32a in plan view. It is pivotally supported. The first leg small frame 20 has a frame 20A1 on its head side fixed to the leg rotating shaft 22 by welding or the like, whereby the first leg small frame 20 becomes the second bed frame. It is attached to the half body 32 so that it can be turned upside down. The first leg frame 20 is formed with a longitudinal length of about 190 to 290 mm.

  The second leg frame 21 includes a frame body 21A in which pipe members and the like are combined in a horizontally-long rectangular shape, an underlay material 21B that is placed in a space surrounded by the inside of the frame body 21A and on which a bedding can be placed, and a folding bed. And a reinforcing material 21C extending in the longitudinal direction of 1A. Further, as shown in FIG. 6, the end on the head side of the second leg small frame 21 and the end on the leg side of the first leg small frame 20 use a connecting fitting 51 and a pin P3. And can be bent. The second leg frame 21 is formed to have a vertical length of about 520 to 780 mm.

  Further, the folding bed 1A of the present embodiment includes leg operation means 8 for tilting and bending the leg support frame section 6. In this embodiment, the leg operating means 8 is formed by a leg lever 23 extending from the leg rotating shaft 22 as shown in FIG. The leg lever 23 moves in the vertical direction of the folding bed 1A, whereby the leg rotation shaft 22 rotates. As a result, the first leg frame 20 and the second leg frame fixed to the leg rotation shaft 22 are rotated. The small frame 21 tilts and bends in an inverted V shape. Two or more leg levers 23 may be provided to stabilize the rotation of the leg rotation shaft 22. Similarly to the upper body raising / lowering means 7, the leg operating means 8 is provided with a raising / lowering arm that interlocks with the tilting of the leg lever 23 and pushes up the back of the first leg small frame 20 at the tip thereof. You can also

  The leg operating means 8 and the upper body raising / lowering means 7 are connected by an interlocking means 10 and interlocked. And the interlocking | linkage means 10 of this form is provided with the string 9 and the pulley 53. That is, one end of the string-like body 9 is fixed to the tip end portion of the leg lever 23 constituting the leg portion operating means 8, and the other end is the tip end of the second tilting lever 14b of the upper body tilting means 7. The leg movement means 8 and the upper body raising / lowering means 7 are connected to each other via the string-like body 9.

  The string-like body 9 extends from the leg lever 23 and the second raising / lowering lever 14b to the leg side of the folding bed 1A, and the middle is supported by a pulley 53 attached to the second bed frame half 32. It reverses and changes its direction. In this way, the string-like body 9 is reversed and arranged so as to change its orientation, so that it is not disposed over the leg-side end of the bed, for example, as in the conventional folding bed described above, Arranged relatively compactly. As a result, when the bed is folded, the folding operation can be performed smoothly without hindering the operation, for example, when the string-like body 9 is sandwiched therebetween. Moreover, since the string-like body 9 is not damaged by the pinching at the time of folding, troubles such as malfunction can be prevented and maintenance is facilitated. The pulley 53 is rotatably attached to a grooved metal piece 52 fixed to the reinforcing member 32c of the second bed frame half body 32. The string-like body 9 is guided by a guide roller 54 provided on a reinforcing material 31c extending in the lateral direction on the leg side of the first bed frame half 31.

  Next, the operation of the folding bed 1A of the present embodiment configured as described above will be described. As shown by the solid line in FIG. 6A and FIG. 5, when the rod 18b of the linear electric exerciser 18 protrudes toward the leg of the bed, the second raising lever 14b of the upper body raising means 7; The raising / lowering arm 13 is in the clockwise end position in the drawing, and the leg lever 23 is in the counterclockwise end position. At this time, the upper body support frame portion 5 and the leg support frame portion 6 maintain the extended state, and the surface of the bedding S formed of the mat body placed on the bedding receiving frame 3 is formed in a substantially flat shape. Suitable for normal sleep using.

  Next, when the rod 18b of the linear electric exerciser 18 is slightly contracted and interlocked with the rotation of the raising / lowering main shaft 12, the raising link 17 pushes up the head support portion 16 when the raising / lowering arm 13 rises counterclockwise. At this time, the slide shaft 47 of the connector J slides in the cylindrical portion 46 until the retaining portion 23b contacts the lower end surface of the cylindrical portion 46. On the other hand, the back support part 15 keeps the horizontal state placed on the first bed frame half 31 by its own weight. As a result, as shown by an imaginary line R1 in FIG. 5, the head support portion 16 rises while being inclined with a step difference from the back support portion 15, and can assume the initial reclining state R1.

  Further, when the head support portion 16 is further pushed up after the slide shaft 47 reaches the maximum slide amount by the raising and lowering arm 13, the retaining portion 13 b of the slide shaft 47 lifts the cylindrical portion 46. Thereby, the back support portion 15 is lifted together with the head support portion 16 and rises with the pin P1 connected to the heel support frame portion 4 as a fulcrum, so that the step between the head support portion 16 and the back support portion 15 is maintained. The late reclining state R2 can be taken. As described above, in this embodiment, the step between the head support portion 16 and the back support portion 15 can lift the head while reducing the pressure on the neck, and the optimal reclining state for watching TV, reading, etc. In the initial reclining state R1, it is preferable in that the same sleeping comfort as that using a pillow can be obtained without a pillow.

  Further, in the reclining state R including the initial stage and the late stage, as shown in FIG. 6B, the second raising / lowering lever 14b fixed to the raising / lowering spindle 12 of the upper body raising / lowering means 7 is counterclockwise. Rotate. At this time, the string-like body 9 having one end fixed to the second raising / lowering lever 14b is drawn toward the head side of the folding bed 1A, but the direction is reversed 180 degrees by the pulley 53, so the other end is the folding bed 1A. The leg lever 23, which is pulled to and fixed to the leg side, rotates clockwise. As a result, since the first leg frame 20 has its head side end fixed to the leg rotation shaft 22, the leg side end rises. And since the head side end part of the 2nd leg small frame 21 connected to the leg side end part of the 1st leg small frame 20 so that bending is possible is pulled up, the leg support frame part 6 bends in reverse V shape. .

  Further, at this time, the upper body raising / lowering means 7 and the leg lever 23 operate in conjunction with each other via the interlocking means 10, and therefore, when the rising angle of the upper body support frame part 5 is small, the leg support frame part 6 is tilted. The inclination (bending angle) is small, and the inclination of the tilt of the leg support frame portion 6 is increased following the increase in the rising angle of the upper body support frame portion 5. Further, by adjusting the length of the string-like body 9, the tilting of the leg support frame 6 may be interlocked after the rising angle of the upper body support frame 5 exceeds a certain angle (for example, about 15 to 30 degrees). it can.

  Thus, the upper body raising and lowering means 7 and the leg movement means 8 are interlocked by the interlocking means 10, and the user is bent and supported in an inverted V shape with an inclination corresponding to the rising angle of the upper body. Can keep the most natural posture, and even if you watch TV or read for a long time, the burden on the hips and knees is small, fatigue feeling such as sluggishness is reduced, and a comfortable reclining state is achieved. Can be produced. Moreover, since the interlocking means automatically forms the state by the operation of the driving means, it is excellent in usability.

  On the other hand, in the reclining state R, by extending the rod 18b of the linear electric exerciser 18, the rising angle of the upper body support frame 5 and the inverted V-shaped inclination of the leg support frame 6 are gradually reduced. The support frame 5 and the leg support frame 6 can be continuously changed to the initial extended state. The linear electric exerciser 18 can be operated using a remote controller (not shown) while the user is lying on the folding bed 1A.

  The driving means 11 uses a linear electric exerciser 18 in this embodiment. However, as shown in FIG. 13, the driving means 11 includes a ratchet mechanism and manually raises and lowers the upper body support frame 5 so that it can be locked at an inclined position. A lever 24 can also be used. Moreover, although the drive means 11 of this form is attached to the upper body raising / lowering means 7, it may be provided on the leg operating means 8. In addition, the upper body raising / lowering means 7 of the present embodiment includes first and second raising / lowering levers 14a and 14b. However, one raising / lowering lever 14 has a linear electric exerciser 18 and a string-like shape. The body 9 may be attached and configured.

  7 and 8 illustrate other embodiments of the present invention. The description of the configuration equivalent to that of the above embodiment is omitted, and only the reference numerals are shown in the drawing. The upper body support frame portion 5 of this embodiment is constituted by a single frame body, and the leg side end portion thereof is tilted to the head side end portion of the heel support frame portion 4 by using the connecting metal fitting 45 and the pin P1. Operatively installed. Therefore, the back and the head are supported by the upper body support frame 5 integrally.

  In the folding bed 1A of this embodiment, two raising and lowering arms 13 and 13 extending in parallel with each other from the raising and lowering spindle 12 are provided, and the raising and lowering arm 13 has a support roller 55 at its tip, The roller 55 comes into contact with the back surface of the upper body support frame 5 and pushes up the upper body support frame 5. The upper body support frame 5 is provided with sliding surfaces 56 and 56 on which the support roller 55 rolls on a reinforcing material extending in the vertical direction of the folding bed 1A. The raising / lowering operation of the upper body support frame 5 with the pin P1 as an axis and the raising / lowering action of the raising / lowering arm 13 with the raising / lowering main shaft 12 as an axis are different in rotation center position. The abutting position of the front end portion of the upper body support frame portion 5 and the back surface of the upper body support frame portion 5 moves according to the change of the tilt angle. However, since the support roller 55 is engaged with the back surface of the upper body support frame portion 5 so as to be relatively movable, it is preferable in that the raising / lowering operation can be smoothly performed without causing friction or twisting.

  As shown in FIG. 9 (A), the folding bed 1A of the present embodiment has an extension of the rod 18b of the linear electric exerciser 18 and the upper body support frame 5 and the heel arm 13 when the raising / lowering arm 13 is in a substantially horizontal position. The support frame part 4 and the leg support frame part 6 maintain the horizontally extended state placed on the bed main frame 2. As shown in FIG. 9B, when the rod 18b of the linear electric exerciser 18 is contracted and the raising / lowering arm 13 rotates counterclockwise in the drawing, the support roller 55 at the tip of the raising / lowering arm 13 is moved to the upper body support frame portion. 5 is pushed up, and the upper body support frame 5 rises around the pin P1. At the same time, the leg operating means 8 is operated via the interlocking means 10 including the string-like body 9, and the leg support frame 6 is tilted and bent in an inverted V shape.

  10 and 11 illustrate yet another embodiment of the present invention. The upper body raising / lowering means 7 of the present embodiment includes first and second raising / lowering levers 14 a and 14 b arranged in parallel on the back surface of the upper body support frame portion 5. The first raising / lowering lever 14a is composed of a pair of long plates 14a1 and 14a1 which are inclined from the back surface of the upper body support frame portion 5 to the leg side of the folding bed 1A and are parallel to each other with a small gap. The tip of the first raising / lowering lever 14a is rotatably attached to the rod 18b of the linear electric exerciser 18 by a pin P4. The pin P4 is slidably attached to the elongated hole 57 at the tip of the first raising / lowering lever 14a in order to obtain play in the expansion / contraction operation of the rod 18b.

  The second raising / lowering lever 14b protrudes from a mounting plate 58 provided on the back surface of the upper body support frame portion 5, and has a base portion 14b1 fixed to the mounting plate 58, and a leg of the folding bed 1A from the tip of the base portion 14b1. It consists of an arm portion 14b2 extending to the side, and has an L shape. The arm portion 14b2 has one end of the string-like body 9 constituting the interlocking means 10 fixed to the tip thereof, and the other end of the string-like body 9 is fixed to the tip of the leg lever 23 of the leg operating means 8. Yes.

  As shown in FIGS. 12 (A) and 12 (B), the folding bed 1A of the present embodiment has an upper body support frame portion 5, a heel support frame portion 4, legs, and a leg when the rod 18b of the linear electric exerciser 18 extends. The support frame portion 6 maintains an extended state in which it is placed horizontally on the bed main frame 2. As shown in FIG. 12C, when the rod 18b of the linear electric exerciser 18 is contracted and the tip of the first raising / lowering lever 14a is pulled toward the head side of the folding bed 1A, The upper body support frame portion 5 that is attached to the end portion of the upper body supporter so as to be able to be tilted up and down by the pin P1 rises at the head end portion. Then, as shown in FIG. 12D, the second raising / lowering lever 14b on the back surface of the upper body support frame 5 tilts counterclockwise around the pin P1, so that one end of the string-like body 9 is folded. Pulling to the head side of the bed 1A, as a result, the leg operating means 8 operates, and the leg support frame 6 tilts in an inverted V shape and is bent.

  In the folding bed 1B shown in FIG. 13, the leg side end portion of the upper body support frame portion 5 is attached to the head side end portion of the heel support frame portion so as to be able to be turned up and down by a pin P1, and is further inclined using a ratchet RA. It is supported so that it can be locked. The ratchet RA has a known structure that can support the upper body support frame 5 at a plurality of inclined positions so that the upper body support frame 5 can be locked, and the locking is released when the maximum inclination angle (for example, 90 degrees) is exceeded. The The upper body support frame portion 5 is used by causing the user to manually raise it to an arbitrary angle. At this time, since the reclining grips 60 are provided on both sides of the upper body support frame portion 5, the operation can be easily performed by grasping and lifting them. The reclining grip 60 is a rope coated with a sponge to obtain a soft feeling.

  The upper body support frame portion 5 has a protruding lever 19 on the back surface thereof. The protruding lever 19 is composed of a base portion 19a fixed to a mounting plate 59 provided on the back surface of the upper body support frame portion 5, and an arm portion 19b extending from the tip of the base portion 19a to the leg side of the folding bed 1A. I am doing. The interlocking means 10 is provided on the string-like body 9 and the second bed frame half 32, and includes a support rod 59 extending in the lateral direction. One end of the string-like body 9 is fixed to the tip of the arm portion 19b, extends toward the leg side, and the middle is supported by the support rod 59 and reversed to change the tip direction to the head side. The other end is fixed to the tip of the leg lever 23 constituting the leg operating means 8.

  As shown in FIG. 14 (A), the folding bed 1B of the present embodiment includes the upper body support frame portion 5, the heel support frame portion 4, and the leg support frame portion 6 when the latching by the ratchet RA is released. The horizontally extended state placed on the bed main frame 2 is maintained. As shown in FIG. 14 (B), the upper body support frame 5 is locked at an inclined position by the ratchet RA when manually raised around the pin P1. At this time, the protruding lever 19 on the back surface of the upper body support frame 5 rotates counterclockwise around the pin P1, so that one end of the string-like body 9 is pulled to the head side of the folding bed 1A, and as a result, The leg operating means 8 operates, and the leg support frame 6 tilts in an inverted V shape and is bent.

Further, as shown in FIG. 15A, the string-like body 9 has an upper body support frame portion by removing a fixing tool 62 (butterfly bolt, nut) fixing a hook 61 provided at an end portion thereof. When the lever 5 is removed from the protruding lever 19, only the upper body support frame 5 can be tilted up and down without causing the leg support frame 6 to be bent and interlocked in an inverted V shape. At this time, the removed string-like body 9 is fixed by screwing a hook 61 at its end to a mounting plate 64 of the guide roller 54 with a butterfly bolt 63 as shown in FIG.
The hook 61

It is a disassembled perspective view of the folding bed 1A of this invention. FIG. It is an expansion perspective view which illustrates an upper body raising / lowering means, a leg operation means, and an interlocking means. It is an expansion perspective view which illustrates a connector and a link. It is a schematic side view showing a deformed state of the bedding receiving frame. (A) and (B) are schematic side views showing a deformed state of the folding bed 1A. It is a principal part top view which illustrates different embodiment of the folding bed 1A. It is the principal part side view. (A) (B) is a side view which shows the deformation | transformation state. It is a top view which illustrates further another embodiment of folding bed 1A. (A) (B) is a principal part side view which shows the deformation | transformation state. (A)-(D) are the side views which show the deformation | transformation state. It is a principal part side view of the folding bed 1B of this invention. (A) (B) is a side view which shows the deformation | transformation state. (A) and (B) are the principal part perspective views explaining the usage method. It is a side view of the conventional folding bed. It is a side view which shows the folded state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1A, 1B Folding bed 2 Bed main frame 3 Bedding receiving frame 4 heel support frame part 5 upper body support frame part 6 leg support frame part 7 upper body raising means 8 leg part operation means 9 string-like body 10 interlocking means 11 drive means 12 raising Tilting spindle 13 Tilting arm 14 Tilting lever 15 Back support section 16 Head support section 17 Lifting link 18 Linear electric motor 19 Projecting lever 20 First leg frame 21 Second leg frame 22 Leg rotation shaft 23 Leg Lever 24 Manual lever RA Ratchet S Bedding

Claims (7)

A folding bed that is attached to a bed main frame that can be bent in an inverted V-shape and has a bedding receiving frame on which bedding is placed,
The bedding receiving frame includes a heel support frame portion that is non-tilted and receives a buttock of a sleeping person, an upper body support frame portion that is attached to the head side end of the heel support frame portion so as to be able to tilt and receive the upper body, and the heel A leg support frame that is attached to the leg side end of the support frame so as to be tiltable and can be bent into an inverted V shape;
And the heel support frame part, the upper body support frame part, and the leg support frame part are arranged in the vertical direction of the bed main frame,
The upper body support means for raising and lowering the upper body support frame part and the interlocking means using a string-like body for reversing the leg support means for tilting and bending the leg support frame part are connected and operated in an interlocked manner. In addition, a folding bed comprising driving means for operating the upper body support frame portion or the leg support frame portion.   The upper body raising / lowering means includes a horizontal raising / lowering main shaft pivotally supported by the bed main frame, and an upper portion extending from the raising / lowering main shaft and engaging the upper body supporting frame portion to raise and lower the upper body supporting frame portion. It consists of a tilting arm and one or more tilting levers extending from the tilting spindle, and tilting the tilting lever causes the tilting operation, and one end of the string-like body is coupled to the tilting lever. The folding bed according to claim 1, wherein the folding bed is provided.   The upper body support frame portion includes a back support portion that receives a back and a head support portion that is lifted from the back support portion and receives a head, and the raising and lowering arm is connected to the head support portion via a lifting link. The folding bed according to claim 2, wherein the folding bed is engaged with the upper body support frame portion by being coupled to the support portion.   The folding bed according to claim 2, wherein a tip end portion of the raising / lowering arm engages with a back surface of the upper body support frame portion so as to be relatively movable.   The said drive means is a manual lever which raises / lowers the said upper-body support frame part so that it can be locked in an inclined position using a linear electric exerciser or a ratchet. Folding bed. A folding bed that is attached to a bed main frame that can be bent in an inverted V-shape and has a bedding receiving frame on which bedding is placed,
The bedding receiving frame is attached to be able to be tilted and tilted using a ratchet, and to be tilted using a ratchet supporting frame portion that receives the buttocks of the sleeping person and a head side end portion of the saddle supporting frame portion. An upper body support frame portion that receives the upper body body, and a leg support frame portion that is attached to the leg side end of the heel support frame portion so as to be tiltable and can be bent into an inverted V shape,
And the heel support frame part, the upper body support frame part, and the leg support frame part are arranged in the vertical direction of the bed main frame,
The upper body support frame portion is connected and interlocked using a projecting lever whose one end is fixed, and an interlocking means using a string-like body that reverses the leg operation means for tilting and bending the leg support frame portion. Folding bed characterized by that. The leg support frame portion is pivotally supported by the first leg frame so that it can be bent in a V-shape opposite to the first leg frame on the side of the heel support frame. And the leg support frame is pivotally supported by the bed main frame so as to be able to pass through the first leg small frame laterally through the side of the heel support frame. Fixed to the leg rotation shaft to be attached to the bed main frame,
The leg operating means is one or more leg levers fixed to the leg rotation shaft, and the string-like body is fixed to the leg levers. Folding bed as described.

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