JP2006141639A - Bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly safe and light-weight bed excellent in handleability and an appearance. <P>SOLUTION: For the bed, a bed frame body provided with a rectangular peripheral frame, where a mat frame provided with a bedding mounting surface for mounting a mat is mounted, is supported by a vertically long extension and contraction leg. The extension and contraction leg is provided with a static body on a floor side and an elevating and lowering body to be elevated and lowered to the static body and matched and locked at a plurality of upper and lower positions. By fixing the elevating and lowering body to the bed frame body, the bed frame body is supported by the extension and contraction leg. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a bed that can be easily adjusted in height and has excellent usability.

  In order to adjust the bed height that varies depending on the bed user's age and physique, bedtime, nursing care, medical use, and other usage conditions, a drive mechanism that moves with a power source such as an electric motor or hydraulic cylinder is used. A bed that raises and lowers the bedding placement unit is used. However, a bed that is lifted and lowered by a power unit has a problem in handling because it generates noise and vibration during operation, is expensive, and is large and heavy.

  Then, as shown in FIG. 13, the bed which raises / lowers manually, without using a motive device is proposed (for example, refer patent document 1). This manual lift bed includes a base a placed on the floor surface f, a link mechanism b provided on the base a, and a bed frame e supported by the link mechanism b. The link mechanism b is pivotally supported by the base a at a pivot point provided with a locking tool k and rises in a V shape, and is pivotally supported at the center of the bed frame e by an inverted V shape. The upper and lower levers d1 and u1 and the upper and lower levers d1 and u2 form a scissor link mechanism pivotally attached to each other at the middle position. Since it is comprised in this way, bed height can be adjusted by raising / lowering the bed frame body e which canceled the said locking tool k manually, and locking the locking tool k again.

JP 9-327354 A

  However, the link mechanism b is a complicated device in which a large number of mechanical parts such as a lever and a locking tool k are three-dimensionally assembled, so that the pivotal support portion and part of the sliding portion of the lever are out of order, resulting in insufficient lubrication. As a result, the ascending / descending operation is rattled, resulting in malfunctions, requiring maintenance, and increasing the weight of those that do not use a power unit, resulting in inconvenient handling such as movement. Furthermore, since the link mechanism b is exposed, the appearance is impaired, and an improvement in safety is required such as covering the movable part.

  The present invention is based on supporting a bed frame body by fixing a floor-side stationary body and a lifting body that moves up and down relative to the stationary body to the bed frame body, and is lightweight, easy to handle and safe. The challenge is to provide a bed that is both excellent and attractive.

  In order to achieve the above object, the invention according to claim 1 supports a bed frame body on which a mat frame having a bedding placing surface on which a mat is placed, having a rectangular peripheral frame, is supported by vertically elongated legs. The telescoping legs include a floor-side stationary body and a lifting body that moves up and down with respect to the stationary body and is aligned and locked at a plurality of positions above and below the stationary body. The bed frame body is supported by an extendable leg by being fixed to.

  In the invention according to claim 2, a pair of the telescopic legs are arranged at intervals on both sides of the head side side facing the user's head of the bed frame body and the leg side side facing the leg, By fixing the lower part of the elevating body to the bed frame body, the temple-shaped body is bridged between the projecting portions protruding from the bed frame body, and the leg / miya frame is formed by the pair of telescopic legs and the temple-shaped body. It is characterized by doing. It should be noted that, here, the bridge-like body is bridged between the protrusions of the lifting body, regardless of whether or not both side portions of the temple-like body are fixed to the protrusions. It is arranged.

  The invention according to claim 3 is characterized in that the telescopic leg is fixed to the bed frame body via a connecting shaft through which the elevating body connects, and the lower end of the stationary body is connected by a base plate. According to a fourth aspect of the present invention, the temple-shaped body is formed of a plate-shaped flat body, and the upper end portion thereof is made up of a coping that joins between the telescopic legs.

  In the invention according to claim 5, the telescopic leg has a cylindrical shape in which the stationary body has an axial shape and the lifting body is extrapolated or inserted into the stationary body, and one of the stationary body and the lifting body. And an engaged portion having a plurality of engagement receiving portions spaced apart vertically, and an engagement provided on the other and urged by the urging means to engage any one of the engagement receiving portions. A protrusion, an engagement release means for releasing the engagement against the urging when the lifting body is lifted, and an engagement of the engaging protrusion at the rising end to prevent the lifting body from being lowered. And an engagement preventing means for returning the engagement of the engagement convex portion at the descending end.

  The invention according to claim 1 is a combination of a stationary body and a lifting body fixed to the bed frame body, and the bed frame body is supported by simple extendable legs that can be manually adjusted in length. It is easy to handle and can be used for simple beds. In addition, it is lightweight, can be lifted and lowered easily, and is highly safe, so even elderly and young people can handle it with peace of mind. In addition, the telescopic legs with a simple structure have few failures and are easy to maintain, and further, they are supported by vertically elongated smart telescopic legs, so the appearance is refreshing and the appearance is excellent.

  In the invention according to claim 2, since the lower part of the lifting body is fixed to the bed frame body and protrudes upward from the bed frame body, it can be lifted and lowered with a long stroke with respect to the stationary body, and the bed lifting height is sufficient. Can be set large. Moreover, since the raising / lowering body which protrudes upwards from a bed frame body is distribute | arranged to the both sides of a temple-shaped body and gives an accent as a border of a temple-shaped body, the outstanding design property is acquired.

  In the invention according to claim 3, since the extendable legs are connected via the connecting shaft and the base plate to form a highly rigid rectangular frame, the bed frame is firmly supported to form a solid bed. In the invention according to claim 4, since the upper and lower ends of the telescopic legs are connected via the caps, the support strength of the bed is further solidified, and the upper end of the pagoda is made up by the caps. Appearance improves.

  In the invention which concerns on Claim 5, since the engagement convex part is engaged with several engagement receiving parts one by one by raising the raising / lowering body, and the length of an expansion-contraction leg can be changed in multiple steps, bed height is made arbitrarily. Can be adjusted. Furthermore, the extension / contraction leg extended to the maximum length can be reduced to the minimum length by the engagement preventing means, and the height of the bed can be adjusted repeatedly by lifting the lifting body again.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the bed 1 includes a bed frame 5, telescopic legs 6 that support the bed frame 5, and a mat frame 4 that is supported on the bed frame 5.

  The bed frame body 5 has a frame body 21 and is provided with decorative side plates 23 extending on both sides from the front portion to the rear portion on the head side of the user. The frame body 21 includes a peripheral frame 2, a reinforcing bar 21 </ b> A that extends over the inner side of the peripheral frame 2, and extends in the front-rear direction, and a reinforcing bar 21 </ b> B that extends in the width direction. Further, the peripheral frame 2 is connected in the width direction by connecting the left and right side frames 2S, 2S extending continuously between the front part and the rear part on the user's head side and the front and rear ends of the side frames 2S, 2S. It consists of a front frame 2F that extends and a rear frame 2B, and has a rectangular shape. The side frame 2S, the front frame 2F, and the rear frame 2B are vertically long rectangular pipes having the same cross section.

  In addition, a decorative side plate 23 is attached to the peripheral frame 2 so as to cover the outer side portion thereof. The decorative side plate 23 has a long plate shape having substantially the same length as that of the side frame 2S. As shown in FIG. Further, a bent piece 24 that is bent at a right angle inside is provided at the front and rear ends. The decorative side plate 23 is arranged with the step portion 25 along the outer surface and the lower surface of the side frame 2S, and screws (not shown) penetrating the side frame 2S vertically are formed on the lower surface of the step portion 32. By driving, it is fixed along the side frame 2S. The decorative side plate 23 covers the side frame 2 </ b> S to enhance the appearance and reinforce the bending rigidity of the frame body 21.

  As shown in FIG. 3, the telescopic leg 6 includes a stationary body 7 disposed on the floor side and a lifting body 8 that engages with the stationary body 7 and moves up and down with respect to the stationary body 7, and is configured to be vertically long. . Here, “longitudinal” means that the length in the vertical direction, that is, the height can be increased or decreased. The stationary body 7 or the lifting body 8 includes a cylindrical body such as a cylinder or a square cylinder, a cross-sectional circular shape, a rectangular shape, a U-shape, an L-shape, a Z-shape, or other shaft-like body that extends vertically. Those having a hollow body or other shapes are used. The stationary body 7 and the lifting body 8 are configured so that the lifting body 8 can be moved up and down with respect to the stationary body 7 by inserting one of them into the other or engaging with each other so as to be movable up and down. The stationary body 7 of this embodiment has a hollow shaft shape, and the cylindrical elevating body 8 slides up and down by extrapolating the stationary body 7, and as a result, the telescopic legs 6 can expand and contract. In addition, the upper bushing 28U attached to the outer periphery of the upper end portion of the stationary body 7 is in sliding contact with the inner peripheral surface of the lifting body 8, and the lower bushing 28D attached to the inner periphery of the lower end portion of the lifting body 8 is in sliding contact with the outer peripheral surface of the stationary body 7. Therefore, it is preferable in that the elevating body 8 can move up and down smoothly without rattling.

  Further, the telescopic leg 6 of the present embodiment can further lock the telescopic leg 6 with a required length by engaging with the engaged part 14 having a plurality of engagement receiving parts 13 above and below and the engagement receiving part. And an engagement unit 22. As shown in FIGS. 3 and 4, the engaged portion 14 of the present embodiment is formed of a central shaft body 14 </ b> A that has a U-shaped cross section and extends vertically, and a fixed portion 26 whose upper end portion is bent outward in a substantially letter shape is formed. The upper control piece 27U is formed by cutting and raising at the upper part and projecting horizontally, and the lower control piece 27D is provided at the lower part. A plurality (four in this embodiment) of engagement receiving portions 13 each having an engagement hole 13A formed between the upper and lower control pieces 27U and 27D are provided. The middle shaft body 14A is inserted into the elevating body 8 and the stationary body 7 inserted in the elevating body 8, and the fixing portion 26 is screwed to the inner peripheral surface of the upper end of the elevating body 8. As a result, the middle shaft body 14A extends vertically downward in the elevating body 8 and the stationary body 7 and is displaced to one side.

  As shown in FIG. 4, the engaging unit 22 has small-sized side plates 29S and 29S facing each other and a back plate 29B connecting one side of the side plates 29S and 29S, and an opening 37 on the other side. FIG. 2 illustrates a configuration including a grooved container 29 in which is opened, a slider 33 disposed in the grooved container 29, and a lock lever 34.

  The groove-shaped container 29 is provided with a first elongated hole 31 extending vertically in one side plate 29S, and a pivot shaft 30 is bridged between the side plates 29S and 29S. The channel container 29 is inserted into the upper portion of the stationary body 7 and attached in a direction in which the opening 37 faces the engaged portion 14.

  The slider 33 includes a substrate 35 along the inner side of the side plate 29S on which the first long hole 31 is provided, and a front plate 36 in which the front end portion of the substrate 35 near the engaged portion 14 is bent. It is L-shaped. The front plate 36 has an upper end portion 41 and a lower end portion 42 formed by upper and lower ends, and an engagement window 38 formed in the middle. A blocking piece 39 is formed by a portion of the front plate 36 lower than the engagement window 38, and the blocking piece 39 is provided with a hooking recess 40 having a small concave surface. Further, the substrate 35 has a slide pin 43 formed of a bolt protruding upward at the upper portion, and a second elongated hole 44 extending vertically is formed at the lower portion. Then, the pivot shaft 30 of the groove-shaped container 29 is inserted into the second long hole 44 and the slide pin 43 is inserted into the first long hole 31 of the groove-shaped container 29 so that the slider 33 is grooved. It is supported in the shape container 29 so as to be movable up and down, and can move up and down between an upper end position shown in FIG. 5 and a lower end position shown in FIG.

  The lock lever 34 has a plate-like shape extending obliquely from the opening 37 side to the lower portion of the back plate 29B in the channel container 29. The lock lever 34 is provided with an engaging convex portion 16 projecting from the upper end portion on the opening 37 side and facing the engaged portion 14, and the lower end portion on the back plate 29 B side is in contact with the back plate 29 B. 45 is provided. Further, the engaging convex portion 16 is provided with a tapered portion 46 having a lower portion formed obliquely. The lock lever 34 is pivotally supported by the pivot shaft 30 at the middle, and the engaging convex portion 16 is engaged by the biasing means 15 formed of a torsion spring wound around the pivot shaft 30. Is normally urged in the pushing direction, and is stationary with the contact 45 in contact with the back plate 29B.

  As shown in FIG. 3, when the elevating body 8 is lowered and the engaging convex portion 16 faces the uppermost engaging hole 13A, the engaging convex portion 16 biased by the biasing means 15 is engaged. The load applied to the lifting body 8 is supported by being inserted into the hole 13A and engaged with the upper edge of the engagement hole 13A. At this time, in the slider 33, the slide pin 43 is engaged with the lower end of the first long hole 31, or the upper end of the second long hole 44 is engaged with the pivot shaft 30, whereby the engagement window 38 is formed. It is maintained at a height at which the engaging convex portion 16 is inserted.

  Next, when the elevating body 8 is lifted to extend the extendable leg 6, the engagement hole 13A of the engaged portion 14 is also raised simultaneously. At this time, the tapered portion 46 of the engaging convex portion 16 is pushed up to the lower edge portion of the engaging hole 13A, and the lock lever 34 resists the urging force of the urging means 15 and rotates clockwise (in FIG. 3). It turns a small angle. As a result, the engagement between the engagement convex portion 16 and the engagement hole 13A is released, and the elevating body 8 is smoothly lifted while the front end portion of the engagement convex portion 16 slides on the surface of the engaged portion 14. be able to. Then, when the lower engagement hole 13A rises and the elevating body 8 is lifted to a height facing the engagement convex portion 16, the engagement convex portion 16 is engaged again with the lower engagement hole 13A. A load applied to the elevating body 8 is supported at the upper height. When the elevating body 8 is further lifted, the above operation is continued, and the length of the telescopic leg 6 can be successively extended. The taper portion 46 forms an engagement release means 17 that can release the engagement of the engagement convex portion 16 against the biasing when the elevating body 8 is raised.

  When the engaging protrusion 16 is engaged with the lowest engaging hole 13A and the elevating body 8 that has been raised highest is lowered and adjusted again in height, as shown in FIG. When the body 8 is lifted, the lower control piece 27D of the raised middle shaft body 14A pushes up the lower contact portion 42, and thereby the slider 33 rises against its own weight. Then, the blocking piece 39 of the ascending slider 33 pushes up the taper portion 46 of the engaging convex portion 16 which is pushed by the urging means 15 and protrudes from the engaging window 38 toward the center shaft body 14A, whereby the lock lever 34 is rotated clockwise in the drawing. Further, the engagement window 38 moves upward, and instead, the blocking piece 39 shields the front surface of the engagement projection 16, and the engagement projection 16 is pushed back to the inside of the blocking piece 39 to form the engagement hole 13 </ b> A. Cannot be engaged, and as a result, the elevating body 8 can be lowered. At this time, the distal end portion of the engaging convex portion 16 is engaged with the hooking concave portion 40 of the blocking piece 39, and the pushed back state is maintained.

  As described above, when the elevating body 8 is lowered to the lower side while preventing the engagement convex portion 16 from being engaged, the upper control piece 27U of the lowered middle shaft body 14A is moved to the upper side of the slider 33 as shown in FIG. By pushing down the contact portion 41, the engagement of the hook recess 40 is released and the slider 33 is lowered. When the engaging window 38 is lowered to a position facing the engaging convex portion 16, the engaging convex portion 16 urged by the urging means 15 protrudes from the engaging window 38, and the tip thereof is directed to the middle shaft body 14A. It rotates counterclockwise on the drawing until it abuts. In this state, when the elevating body 8 is pulled up until the engaging convex portion 16 reaches a position facing the uppermost engaging hole 13A, the engaging convex portion 16 is engaged with the engaging hole 13A again, and the elevating body 8 is Supported.

  By repeating the above operation, in the present embodiment in which the four engagement holes 13A are provided, the height of the telescopic legs 6 can be adjusted in four stages as shown in FIG. Further, by changing the interval and number of the engagement holes 13A, the adjustment pitch and the number of steps can be arbitrarily set according to the use conditions. Further, contrary to the above embodiment, the engaged portion 14 can be provided on the stationary body 7 and the engaging convex portion 16 can be provided on the elevating body 8. The slider 33 and the upper and lower control pieces 27U and 27D configured as described above prevent the engagement convex portion 16 from engaging at the rising end to allow the lifting body 8 to descend, and engage at the lower end. Engagement preventing means 18 for returning the engagement of the mating convex portion 16 is formed.

  As shown in FIGS. 2 and 7, the telescopic legs 6 configured as described above are connected to each other at the lower part of the lifting body 8 of the pair of telescopic legs 6 by a square pipe-shaped connecting shaft 10. The bed frame 5 is fixed to the front frame 2F and the rear frame 2B with fixing tools 47, respectively. In this way, the pair of telescopic legs 6 are disposed and fixed at intervals on both sides of the front and rear sides of the bed frame 5, and as a result, the bed frame 5 is supported. Therefore, as shown in FIG. 12 (A), when the user lifts one of the bed frame bodies 5, for example, the front, the pair of telescopic legs 6 arranged in the front as shown in FIG. 12 (B). The lifting body 8 is raised by one step and locked. Next, as shown in FIG. 12C, when the other (rear part) of the bed frame body 5 is lifted, the lifting bodies 8 of the pair of telescopic legs 6 arranged at the rear part are similarly raised and locked in one step. As a result, the front and rear lifting bodies 8 are aligned and locked at the same height, so that the bed is supported horizontally at a level raised by one step. Then, by repeating this operation and locking the elevating body 8 at a plurality of positions, as shown in FIG. 11, in this embodiment, the bed frame 5 can be adjusted in four stages H1 to H4. H1 is about 220 to 300 mm, for example, 260 mm in this embodiment, H2 is about 320 to 390 mm, this embodiment is 360 mm, H3 is about 410 to 470 mm, this embodiment is 440 mm, H4 is about 490 to 550 mm, and this embodiment is 520 mm Yes. The height of the bed frame 5 can be adjusted at an arbitrary level, number of steps, and pitch by changing the position, number and interval of the engagement holes 13A. The height adjustment operation of the bed frame body 5 can be performed by two operators by simultaneously lifting the front and rear portions, and at this time, the bed frame body 5 can be efficiently operated while maintaining the horizontal state.

  The bed configured as described above is a simple one that can be manually adjusted in length by combining a stationary body and a lifting body 8 fixed to the bed frame body 5 without using a driver or a complicated link mechanism. Since the bed frame 5 is supported by the extensible legs 6, the weight of the bed frame 5 is reduced, and handling such as movement and storage is facilitated, and it can be used for a simple bed or the like. In addition to being lightweight, it can be easily moved up and down, and the operating parts such as the slider 33 and the lock lever 34 are provided inside the telescopic leg 6 to enhance safety, so that even elderly and young people can handle it. Further, since the telescopic legs 6 have a simple structure, there are few failures and almost no maintenance work is required. Moreover, the bed supported by the vertically long smart telescopic legs 6 has a clean appearance and an excellent appearance.

  In this embodiment, in addition to the fixing by the connecting shaft 10, the lifting body 8 is provided with a fixed plate 48 having the same height as the connecting shaft 10, and the lifting body 8 is fixed to the bed frame 5 through the fixing plate 48. Therefore, it is preferable in that the support strength of the bed frame 5 is further stabilized. The fixing plate 48 is accommodated in a recess 24 </ b> A provided on the back surface of the bent piece 24 of the decorative side plate 23. Therefore, since the fixing plate 48 is hidden by the bent piece 24, it is preferable in terms of enhancing appearance.

  Further, as shown in FIG. 2, the lifting body 8 of the present embodiment is fixed to the bed frame 5 at the lower part than the middle thereof, and the upper part protrudes upward from the bed frame body 5 and is attached. Therefore, it is preferable in that it can move up and down with a relatively long stroke with respect to the stationary body 7 and the height of the bed can be set sufficiently high. Further, a temple-shaped body 9 is bridged between the lifting body 8 protruding upward from the bed frame body 5. Here, the pagoda 9 includes both headboards and footboards arranged at the front and rear, and is formed into plate-like wood, MDF (medium density fiberboard), artificial wood, plastic, metal, etc. A flat plate is used. The pair of telescopic legs 6 and 6 and the pawl body 9 form a leg / miya frame 19. The leg / miya frame 19 refers to a configuration in which the telescopic legs 6 and 6 on both sides and the temple 9 are continuously arranged in the bed width direction. In this leg / miya frame 19, the extensible legs 6 are arranged on both sides of the temple 9 and give accents as an edge of the temple 9, which is preferable in terms of obtaining excellent design.

  As shown in FIG. 2, in the present embodiment, the lower part 9 is fixed to the peripheral frame 2 via an attachment fitting 49 having an angled shape at the lower part. Further, a cap 12 extending between the bed width direction and having a support groove 50 in the lower portion and spanning between the telescopic legs 6 is disposed on the upper portion of the pagoda 9. As shown in FIG. 8, the headboard 12 has support holes 51 formed at the lower portions of both ends, and is fixed to the upper portions of the extensible legs 6 fitted in the support holes 51 using bolts 52. The upper portion of the pawl 9 is fitted into the support groove 50, and is thereby supported by the telescopic legs 6 via the headboard 12, and the upper ends of the telescopic legs 6 and 6 are connected by the headboard 12. Therefore, it is preferable in that the leg / miya frame 19 is more integrated and the rigidity is improved. Moreover, since the upper part of the temple-shaped body 9 and the expansion-contraction leg 6 is covered continuously by the said caps 12, it is preferable at the point which decorativeness improves.

  In the present embodiment, there is exemplified one in which the extensible legs 6 and the pawl 9 are sequentially fixed to the bed frame 5 to form the leg / pawl frame 19, but the extensible legs 6 and pawl 9 are combined in advance. -It is good also to attach to the bed frame 5 after integrating the Miya frame 19. Furthermore, if the side portions of the pawl 9 and the extensible legs 6 are fixed using a fixing hardware, a fixing tool, etc., the rigidity of the leg / miya frame 19 can be further increased.

  The lower ends of the stationary bodies 7 of the pair of telescopic legs 6 are connected by a base plate 11 that is placed on the floor and extends in the bed width direction. A flat circular pipe material is used for the base plate 11 of this embodiment, and is fastened to the lower end portion of the stationary body 7 via a hat-shaped fixture 53 as shown in FIG. By joining the lower part of the telescopic leg 6 with the base plate 11, it is preferable in that the rigidity of the leg / miya frame 19 is improved in combination with the connecting shaft 10. A cap 54 is attached to the end of the base plate 11 to enhance safety and appearance. Further, as shown in FIG. 2, the intermediate portions of the base plates 11, 11 arranged at the front and rear are connected by a joint shaft 55. As shown in FIG. 10, the end portion of the joint shaft 55 is fastened to the base plate 11 via a groove-shaped receiving tool 56 provided in the middle of the base plate 11. If the lower portions of the front and rear legs / miya frames 19 and 19 are connected in this way, it is preferable in that the bed becomes more robust.

  As shown in FIG. 1, the mat frame 4 is composed of a rectangular outer peripheral frame 57A having a slightly smaller width than the peripheral frame 2, and a reinforcing frame 57B disposed inside the outer peripheral frame 57A. 5 on the center. Also, on the upper part of the mat frame 4, there is formed a saw-like portion 59 in which a plurality of long plates 58 extending in the bed width direction are attached in parallel in the front-rear direction with a gap. The bedding placement surface 3 on which the mat M is placed is formed by the surface of the slat-like portion 59. In addition, the width | variety of the said clearance gap is about 7-25 mm, for example, and this form is 13 mm. The long plate 58 is preferably made of paulownia having excellent antibacterial properties, deodorization, and air permeability. Further, a grip plate unit 60 in which grips 60A and 60A that rise at a small height on both sides of the bed are connected by a through shaft 60B passing through the gap is mounted on the mat frame 4.

  Note that the above description exemplifies an embodiment of the present invention, and the technical scope of the present invention is not limited to this.

1 is an exploded perspective view illustrating an embodiment of the present invention. It is the principal part expansion perspective view. It is a longitudinal cross-sectional view of an expansion-contraction leg. It is the principal part expansion perspective view. It is a principal part expanded longitudinal cross-sectional view explaining the operation state. It is a principal part expanded longitudinal sectional view explaining the different operation state. It is a principal part expanded sectional view explaining the attachment state of an expansion-contraction leg. It is AA sectional drawing of FIG. It is sectional drawing of the lower part of an expansion-contraction leg. It is an expansion perspective view of the connection part of a base plate and a joint shaft. It is the schematic explaining the raising / lowering state of a bed frame. (A), (B), and (C) are side views for sequentially explaining the operation of raising the bed. It is a side view of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bed 2 Peripheral frame 3 Bedding mounting surface 4 Mat frame 5 Bed frame 6 Telescopic leg 7 Stationary body 8 Lifting body 9 Temple-shaped body 10 Connecting shaft 11 Base plate 12 Kasagi 13 Engagement receiving part 14 Engagement part 15 With Energizing means 16 Engaging projection 17 Engaging release means 18 Engagement preventing means 19 Leg / miya frame M Mat

Claims (5)

While supporting a bed frame body on which a mat frame having a bedding placing surface on which a mat is placed having a rectangular peripheral frame is placed by vertically elongated legs,
The telescopic legs include a floor-side stationary body and a lifting body that moves up and down with respect to the stationary body and is aligned and locked at a plurality of vertical positions, and fixes the lifting body to the bed frame body. Thus, the bed frame is supported by an extendable leg.   A pair of the extendable legs are disposed on both sides of the head side of the bed frame body facing the user's head and the leg side sides of the leg facing each other with a space therebetween, and the lower part of the lifting body is disposed on the bed frame. The temple-shaped body is bridged between the projecting portions protruding from the bed frame body by being fixed to the body, and the leg / miya frame is formed by the pair of telescopic legs and the temple-shaped body. The bed according to 1.   3. The telescopic leg according to claim 1, wherein the telescopic leg is fixed to the bed frame body via a connecting shaft through which the elevating body is joined, and the lower end of the stationary body is joined by a base plate. bed.   The bed according to any one of claims 1 to 3, wherein the pagoda is made of a plate-like flat plate, and an upper end portion is made up of a coping that joins between the telescopic legs.   The telescopic legs are formed in a cylindrical shape in which the stationary body has an axial shape and the lifting body is extrapolated or inserted into the stationary body. An engaged portion having a plurality of engaged receiving portions, an engaging convex portion which is provided on the other side and is urged by the urging means to engage any one of the engaging receiving portions, and the lifting body is raised At this time, disengaging means for releasing the engagement against the urging force, and the engagement convex portion is prevented from engaging at the rising end to allow the lifting body to descend, and the engagement convex at the lower end. The bed according to any one of claims 1 to 4, further comprising engagement preventing means for returning the engagement of the portion.

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