JP3411258B2 - Multifunctional bed - Google Patents

Description

Detailed Description of the Invention

The present invention relates to a multi-functional bed which can be used as a bed when extended and can be used as a chair or desk when reduced.

[0002]

BACKGROUND OF THE INVENTION The bed is not developed in Japan, but it has the characteristics that it makes movement easier when waking up and the face is located far from the floor when sleeping, so it is close to the floor. It has an excellent feature that it does not inhale dust and the like. Therefore, it has come into widespread use recently as a healthy and body-friendly bedding. Especially, this feature is useful for elderly people who need care and those who suffer from asthma. However, it has not reached the mainstream of bedding in place of futon.

Considering the cause that prevents the bed from becoming widely used, the main cause is that the bed is used only at night. Japan is an island nation with a small land area, and especially in urban areas where the population is dense and housing conditions are not so good. Beds, which require a large space during the day as well as at night, are quite a burden for a small Japanese house.

In this respect, the futon developed in Japan is stretched on the floor only at bedtime and folded during the day, so that one room can be used as a living room during the day and a bedroom at night. As a very reasonable bedding that is suitable for the national situation, it retains its immobile status, albeit with a slight decrease. However, expectations for beds are rising due to the advent of an aging society and the recent trend of health preferences.

[0005]

2. Description of the Related Art Although a bed has excellent characteristics as described above, it has not been adapted to a Japanese house so far. Therefore, if it is possible to create a bed that makes use of such characteristics of the bed and reduces the size of the bed when it is not needed to effectively use the indoor space, it should be an excellent piece of furniture that matches the national conditions of our country. Against this background, a retractable bed that can be reduced has been proposed, for example, in Japanese Patent Laid-Open No. 10-43006.

FIG. 6 is a perspective view of a conventional telescopic bed.
In FIG. 6, 30 is a fixed part, 31 is a box that also serves as legs, 32 is a headboard, 33 is a side plate, and 34 is a partition. Reference numeral 35 is a seat plate, 36 is a slide arm, and 37 is a small seat plate.

This conventional telescopic bed is provided with a fixed part 30 having a headboard 32 at one end and a slidable moving part, and a slide arm 36 constituting the moving part is pulled out from under the fixed part 30. It is pushed into the fixed portion 30. When the slide arm 36 is pushed in, the unnecessary small seat plate 37 is housed in the box 31. The length of the telescopic bed can be adjusted by appropriately selecting the number of the small seat plates 37. As a result, the length of the bed can be selected according to the height, and the unnecessary seat plate can be housed in the box 31 and covered with a lid so as not to interfere with life.

[0008]

However, although this conventional telescopic bed is capable of expanding and contracting the length of the bed, there is almost no degree of freedom in design because of its structure.
The two slide arms 36 must have a double-sided structure in which the small seat plate 37 is supported by a pair of receiving portions protruding inward from both sides. Considering operability, weight, and stress,
The shape, the material, and the width of the receiving portion are very limited.
Moreover, although there is a large space under the seat plate 35, the storage location of the slide arm 36 cannot be freely selected, and it is limited to the portion directly below the seat plate 35.

There is no problem with this conventional telescopic bed if the user sets the length once considering his / her height and uses it as it is for a long period of time. If you use it by expanding and contracting every day according to the housing situation, you have to take out the small seat plate 37 from the box 31 every day, attach it to the bed, and store it in the box 31 on the contrary. First of all, it imposes a heavy work burden on the elderly. Moreover, at this time, it is necessary to pull out or push in the slide arm 36 in the horizontal direction, but the box 31 that becomes the leg of the bed rubs the floor surface when the bed is taken in and out, and even if a rug for floor protection is laid, However, it was unthinkable to put a bed in a Japanese-style room. Considering the circumstances of Japanese houses, the value will be halved unless the bed can be placed in a Western-style room as well as a Japanese-style room.

A large amount of sweating occurs during sleep,
This sweat causes the bedding and the seat plate 35 to become damp.
Beds that cannot be easily sanitized or dried by being dried outside like a futon are usually left as they are for a long time, although the bedding may be replaced. With this, the seat plate 35 is not actively dried. In particular, the rooms inside the concrete structures have poor air permeability, and in Japan combined with the high humidity, molds may even occur during the rainy season. In addition, in this conventional telescopic bed in which the seat plate 37 is housed in the box 31, the seat plate 37 is installed in the box 31.
It will be kept in a high humidity environment all the time, will not be dried, and will be kept in a considerably unsanitary state. This is unhygienic not only for those who suffer from asthma and atopy, but also for healthy people, and when the small seat board 37 is taken out, an odor drifts and the telescopic bed will no longer be used.

In addition, the box 3 for accommodating the seat plate 37
Since No. 1 has a width, the total length of the bed becomes long even when the bed is contracted, and the design of this telescopic bed is contrary to the intended direction.

[0012] Therefore, the present invention is to solve the problems of the prior art, the indoor space can be effectively utilized, there is a high degree of freedom of design, can be expanded and contracted, excellent in durability, The object is to provide a multifunctional bed that does not rattle due to smooth movement even when it is stored, has excellent breathability, and can be used as a chair or desk when it is reduced.

[0013]

In the multi-functional bed according to the present invention, the spacer seat plate is detachably held on the side of the central support leg with respect to the first seat plate, and the first seat plate is below the first seat plate. A guide member for guiding the slide portion is provided at a predetermined position separated from the
The spacer seat plate is removed, and the slide portion is inserted through an opening formed between the first support frame and the first seat plate.

As a result, the indoor space can be effectively used, the degree of freedom in design is high, it can be expanded and contracted, and it has excellent durability. It has excellent properties and can be used as a chair or desk when it is reduced.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention described in claim 1 has a first support frame for holding a first seat plate and a spacer seat plate, and the first support frame has a head side support leg and a central support. A main body portion provided with legs, and a slide portion having a second support frame that can be stored under the main body portion and holds a second seat plate, and a foot side support leg is provided on the second support frame. And a spacer seat plate is detachably held from the first seat plate to the central support leg side, and below the first seat plate at a predetermined position separated from the first seat plate. A guide member for guiding the slide portion is provided on the slide portion, and when the slide portion is stored, the spacer seat plate is removed and the slide portion is opened from an opening formed between the first support frame and the first seat plate. Since it is a multi-functional bed that can be inserted, it can be expanded and contracted to create an indoor space. It is possible to use, first at the time of expansion
Since the surface of the seat plate and the second seat plate can be made flush with each other, there is no step on the seat plate surface, and gravity is used even when the seating operation is performed, so it is easy, does not rattle, and has excellent breathability. Can be dried and can be used as a chair or desk when reduced.

According to a second aspect of the present invention, the multi-functional bed according to the first aspect is characterized in that the spacer seat plate is an elongated seat plate having the same length as the lateral width of the first seat plate. Therefore, the opening for storage can be made smaller, and the spacer seat plate can be
Easy to hold on the support frame.

According to a third aspect of the present invention, the guide member includes a pair of arms, and the pair of arms has a slide portion at a predetermined position below the first seat plate from a position within a plane including the first seat plate. 3. The multi-functional bed according to claim 1, further comprising a taper portion that guides the slide portion to the first seat frame surface. It is possible to slide smoothly to a predetermined position below the position by utilizing gravity.

According to a fourth aspect of the present invention, the guide member includes a pair of long grooves provided on the inner surfaces of both side plates of the first support frame and a pair of guides provided on the outer surfaces of both side plates of the slide portion. The multi-functional bed according to claim 1 or 2, wherein a pair of guides are respectively inserted into the pair of long grooves to guide the slide portion to a predetermined position. It can be slid smoothly from a position in the same plane as the first seat plate surface to a predetermined position separated from the first support frame, and can be stored below the first seat plate without any play.

(Embodiment 1) Embodiment 1 of the multifunction bed of the present invention will be described in detail below. 1 is a perspective view of the multifunction bed according to Embodiment 1 of the present invention as a bed when extended, FIG. 2 is a perspective view of the multifunction bed according to Embodiment 1 of the present invention as a chair when reduced, and FIG. FIG. 4A is a perspective view of a transitional state when the multifunction bed according to Embodiment 1 of the present invention is being reduced, and FIG. 4A is a perspective view of the multifunction bed according to Embodiment 1 of the present invention at the time of extension in the expansion / contraction process. Side sectional view as bed, FIG. 4
FIG. 4B is a side sectional view showing a state slightly lifted from the state of FIG. 4A in the expansion / contraction process of the multifunction bed according to the first embodiment of the present invention, and FIG. 4C is the first embodiment of the present invention.
It is a sectional side view which shows the state which pushed in a little from the state of (b) in the expansion-contraction process of the multifunction bed concerning this.

In FIGS. 1 to 4, reference numeral 1 is a main body portion of the multi-functional bed, and 2 is a slide portion of the multi-functional bed which is inserted into or pulled out from the main body portion 1. The main body 1 is used in the same form as it is, whether it is used as a bed or a chair. However, the slide part 2 is housed in the lower part of the main body part 1 when the multifunction bed is used as a chair or a desk.

Reference numeral 3 is a rectangular first support frame of the main body 1, 4 is a headboard, 4a and 4b are head side support legs, 4c and 4d.
Is the central support leg. In the first embodiment, the first support frame 3 uses a part of the headboard 4 as it is to form one side. However, the first support frame 3 may be separated from the headboard 4 and configured separately. Reference numeral 5 is a first seat plate, and 6 is a spacer seat plate which is held together with the first seat plate 5 so as to cover the surface of the first support frame 3. The spacer seat plate 6 is closer to the center support legs 4c and 4d than the first seat plate 5 is.
It is detachably installed on the side and can be removed. The removal is performed when the multifunction bed is reduced to a chair or a desk, the spacer seat plate 6 is removed once, and the slide portion 2 is removed from the gap (hereinafter referred to as an opening) formed at this time.
After being inserted and stored under the main body 1, it is attached again. Therefore, the spacer seat plate 6 is preferably an opening through which the slide portion 2 can be inserted, and preferably an opening having a minimum size.
Any shape can be used as long as it can be closed. In the first embodiment, the seat plate is an elongated seat plate having the same width as the lateral width of the first seat plate 5. The first seat plate 5, the spacer seat plate 6, and the second seat plate 9 are made of thick plates or the like so as to support the weight, and their upper surfaces are covered with cloth or mat. This elasticity makes it possible to provide comfortable bedding and a chair with good cushioning. It should be noted that when used as a desk, the first seat plate 5 and the like are no longer used by humans to sit or sleep, but will be referred to as "seat" plates from the usage state at the time of bed or chair. In this case, the mat should be removable. In addition to this, the seat plate may have various forms as appropriate according to the purpose.

Next, 7 is a second support frame of the slide portion 2, and 7
a is a front side plate of the second support frame 7, and 8a and 8b are second support frames 7.
The foot side support legs attached to the, and 9 are the second seat plates held on the second support frame 7. Height adjusting legs 10a and 10b are connected to the foot side supporting legs 8a and 8b when the multifunction bed is used as a bed. The foot-side support legs 8a and 8b and the height adjusting legs 10a and 10b are provided with concave-convex fitting portions so as to be reliably connected. It is appropriate that the fitting portion has a joint structure that allows not only connection but also positioning around the shaft center with one touch. When the slide portion 2 is stored under the main body portion 1, the height adjusting legs 10a and 10b are removed. This height is the second
Since the upper surface position of the seat plate 9 is lowered, it is possible to freely design the storage part of the slide portion 2 at an appropriate height, and thereby the necessary distance can be secured from the lower surface of the first seat plate 5. This vacant space ensures air permeability and is effective in drying the surface of the second seat plate 9.

Reference numeral 11 denotes the first when the spacer seat plate 6 is removed.
An opening formed by the inside of the support frame 3 and the first seat plate 5. The opening 11 is configured by the edges of the first support frame 3 and the first seat plate 5, the upper ends of the long leg plates 13a and 13b, which will be described later, and the cross beam, and has a shape that allows the slide part 2 to be inserted. The horizontal beams are parallel to the edge of the first seat plate 5 in the lateral width direction, and the central support legs 4c and 4d are configured to form one side of the opening 11.
Although it is provided between them, it is not particularly required to be provided in the case where there are other members for supporting the slide portion 2 and there is no problem in strength. With such an opening shape, the spacer seat plate 6 can be easily attached, and the opening area can be reduced. 12a and 12b are central support legs 4c,
Short leg plates attached to the lower end of 4d, and 13a and 13b are long leg plates attached to the short leg plates 12a and 12b.
Reference numerals 14a and 14b are guide grooves formed by sequentially stacking short leg plates 12a and 12b and long leg plates 13a and 13b on the lower ends of the center support legs 4c and 4d, and the second support frame 7 is provided.
The lower end edges of both side plates are inserted, and guide the sliding portion 2 when it is pushed below the first seat plate 5. Both side plates of the second support frame 7 are guide grooves 14a and 14b.
Since it is housed inside, lateral sliding is suppressed when sliding, and the slide portion 2 can be smoothly inserted.

Reference numeral 15 denotes a pair of guide members on which arms for guiding the slide portion 2 are formed. Reference numerals 15a and 15b denote a pair of taper portions provided on the arms of the guide member 15, respectively. The front side plate 7a is smoothly guided to accommodate the slide portion 2 below the first seat plate 5. Two arms are provided in parallel with both side plates of the first support frame 3, and are connected to the tapered portions 15a and 15b in an appropriate shape so that the slide portion 2 can be moved smoothly. Since the arm of the guide member 15 is provided at a predetermined height apart from the lower surface of the first seat plate 5, a space can be secured between the accommodated second seat plate 9 and the first seat plate 5 to allow ventilation. Can be good. The positions of the two arms in the width direction may be appropriately determined, but it is preferable that the two arms are provided at symmetrical positions between both side plates of the first support frame 3 so that the stress is even.
By providing the guide member 15 and the taper portions 15a and 15b, the slide portion 2 smoothly slides from the same height as the first seat plate 5 to a predetermined position below the first support frame 3 by using gravity. Can be stored.

Next, the operation when using the multifunction bed of the first embodiment will be described. 1 and 4 (a)
As shown in FIG. 3, when assembled as a bed, the slide portion 2 is pulled out from the main body portion 1, and the upper surfaces of the first seat plate 5, the spacer seat plate 6 and the second seat plate 9 are flush with each other. ing. The foot-side support legs 8a and 8b have height adjusting legs 10a and 10b attached to their lower ends in order to supplement the length of the legs. As shown in FIG. 4A, on the head side of the slide portion 2, the front side plate 7 a of the second support frame 7 is the long leg plate 13.
a, 13b is supported by either one of the upper ends or the tapered portions 15a, 15b, or both, and the foot side is supported by foot side supporting legs 8a, 8b and height adjusting legs 10a, 10
It is supported by b.

If the user wants to shrink the multifunction bed into a chair, the slide portion 2 must be stored under the main body portion 1 as shown in FIGS. 2, 4 (b) and 4 (c). I have to. First, the spacer seat plate 6 is removed from the first support frame 3, and the edges of the first support frame 3 and the first seat plate 5, the long leg plates 13a,
The opening 11 composed of the upper end of 13b is exposed to the outside. Next, the height adjusting legs 10a and 10b are removed from the foot side supporting legs 8a and 8b, the foot side of the slide portion 2 is slightly lifted upward, and the slide portion 2 is pushed into the opening 11.

The front side plate 7a of the second support frame 7 is a long leg plate 13
a, 13b upper end portion or taper portion 15a, 15b
Is pushed forward from the upper end portion, that is, the mounting position at the time of bed, and smoothly descends on the slopes of the tapered portions 15a and 15b by gravity. At this time, both side plates of the second support frame 7 are guided and slid in the guide grooves 14a and 14b, so that the inserting direction of the slide portion 2 does not fluctuate. Taper part 1
When pushed in by the length of 5a, 15b, the head side of the slide portion 2 is supported by the arm and slides under the first seat plate 5 forward. If a pair of rollers are provided below the front side plate 7a of the second support frame 7, the rollers roll on the tapered portions 15a and 15b and on the arm during this work, so that friction is reduced and the work load is reduced. It will be extremely easy.

When the slide portion 2 is slid as it is, the foot side supporting legs 8a, 8b are moved to the central supporting legs 4c, 4d.
Reach the position where it comes into contact with. When the second support frame 7 is slowly lowered in this state, the second support frame 7 moves to the guide member 15 as shown in FIG.
And the bottom of the guide grooves 14a, 14b or the foot side support leg 8
a, 8b, or the guide member 15 and the rear two members. When the spacer seat plate 6 closes the opening 11 again, the multifunction bed is in a contracted state and can be used as a chair or a desk. When it is used as a desk, it is convenient to keep the headboard 4 short.

When reassembling the multifunction bed that has been reduced and used as a chair or desk as a bed, the reverse operation of the reduction may be performed. Just slide part 2
If too much is pulled out, the front side plate 7a of the second support frame 7 falls from the mounting position (the upper end surfaces of the long leg plates 13a and 13b, the lateral beams, the ends of the taper portions 15a and 15b) and is disassembled. 2 It is appropriate to provide a stopper (not shown) so that the front side plate 7a of the support frame 7 cannot be further pulled out from the mounting position. If this stopper has a structure that restricts horizontal movement and can be removed in the vertical direction, the separation of the main body part 1 and the slide part 2 becomes very easy, and even when reassembling, It can be assembled very easily just by setting it from above and below. By providing such a stopper,
Even when the bed installation location is changed, the main body 1 and the slide portion 2 can be disassembled and carried, which makes the carrying extremely easy. In addition, it is also appropriate to provide a stopper on the headboard 4 side in order to set the maximum pushing position of the slide portion 2 to an arbitrary position. Then, the front side plate 7a of the second support frame 7
By providing a pair of rollers as described above underneath, the work load at the time of extension work becomes very easy.
This is because, when the pulling out work is performed, it is necessary to slightly lift the slide part 2 while sliding it on the taper parts 15a and 15b, but the roller makes this work very easy.

As described above, the multifunction bed according to the first embodiment can not only effectively use the indoor space by expanding and contracting the bed but also effectively use it as a chair or a desk. It is easy to design the position and space to store the slide part,
It does not rattle even when it is stored, and it is easy because it can be slid using the weight of the slide portion. Moreover, since it can be operated from above, it is easy for the elderly to operate. By providing the roller under the slide part, the work becomes easier. Since the structure receives the load at a plurality of fulcrums, the concentrated force is not partially applied, and the durability can be improved. In addition, it has excellent ventilation and is hygienic, making it a very suitable structure for Japanese houses. (Second Embodiment) The multifunction bed according to the first embodiment described above is provided with an arm and a taper portion on the guide member so that the guide member can be arranged at an arbitrary position below the main body. there were. The multi-functional bed of the second embodiment has improved operability.
FIG. 5 is an enlarged view of the guide member of the multifunction bed according to the second embodiment of the present invention. Since the members having the same reference numerals as those in the first embodiment are basically the same members, the description thereof will be omitted for the first embodiment.

Reference numeral 16 is a pair of long grooves provided on the inner surfaces of both side plates of the side plate of the first support frame 3, and 17 is a pair of guides provided on the side surfaces of the side plate of the second support frame 7. The guide element 17 may be a pin as shown in FIG. 7 or a slidable ball or roller. Using balls or rollers makes the operation extremely easy. The ends of the guide element 17 and the long groove 16 are
It also functions as a stopper when pulling out the slide portion 2 or as a stopper that regulates the pushing position. The inner surface of the long groove 16 may be coated to improve the sliding of the guide element 17, or a metal rail may be provided in consideration of support and durability. As described above, the multifunction bed according to the second embodiment uses the pair of long grooves provided on the inner surfaces of both side plates of the first support frame and the pair of guides provided on the outer surfaces of both side plates of the second support frame as guide members. Therefore, the operation is extremely easy, and by selecting the dimensions of the guide and the long groove, it is possible to completely eliminate rattling during sliding. Further, it is possible to provide an inexpensive multifunctional bed with a small number of members.

[0032]

The multifunction bed according to the first aspect of the present invention makes it possible to effectively use the indoor space by expanding and contracting the bed, and further, this can be used as a chair or a desk. The space for storing the slide part is easy to design, and even if it is stored, it does not rattle with a smooth movement, and it can be operated from above, so it is easy for elderly people to operate and has excellent durability. can do. In addition, it has excellent ventilation and is hygienic, making it particularly suitable for Japanese houses.

According to the second aspect of the invention, since the spacer seat plate is a long seat plate having the same width as the lateral width of the first seat plate, the opening for storage can be made small and the spacer seat plate is light. Is easily held on the first support frame, and the storage operation can be performed from above, and the operability is excellent.

According to the third aspect of the present invention, the weight of the slide portion is used from the position within the same plane as the first seat plate surface to the predetermined position below the first support frame. Since it can be slid smoothly, and the load is applied at multiple fulcrums, concentrated force is not applied locally.

According to the invention described in claim 4, since the pair of long grooves and the guide element are used as the guide member, the operation can be performed very easily, the rattling at the time of sliding can be eliminated, and the number of members can be increased. It is possible to provide a multi-functional bed that is inexpensive and inexpensive.

[Brief description of drawings]

FIG. 1 is a perspective view of a multifunction bed according to Embodiment 1 of the present invention as a bed at the time of extension.

FIG. 2 is a perspective view of the multifunction bed according to the first embodiment of the present invention as a chair at the time of reduction.

FIG. 3 is a perspective view of a transient state when the multifunction bed according to the first embodiment of the present invention is being reduced.

FIG. 4A is a side sectional view of the multifunction bed according to Embodiment 1 of the present invention as a bed at the time of extension in the extension / contraction process of the multifunction bed, and FIG. 4B is an extension / contraction process of the multifunction bed according to Embodiment 1 of the present invention. (A) A side sectional view showing a state slightly lifted from the state (a). (C) A side sectional view showing a state in which the multifunctional bed according to Embodiment 1 of the present invention is slightly pushed in from the state (b).

FIG. 5 is an enlarged view of a guide member of the multifunction bed according to the second embodiment of the present invention.

FIG. 6 is a perspective view of a conventional telescopic bed.

[Explanation of symbols]

1 body 2 Slide part 3 first support frame 4 headboard 4a, 4b Head side support leg 4c, 4d central support leg 5 First seat 6 Spacer seat plate 7 Second support frame 7a Front side plate 8a, 8b Foot side support leg 9 Second seat plate 10a, 10b Height adjustment leg 11 openings 12a, 12b short leg plate 13a, 13b long leg plate 14a, 14b Guide groove 15 Guide member 15a, 15b taper part 16 long groove 17 guide

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References: Showa 58-1365 (JP, U) Showa 52-60405 (JP, U) Showahei 2-143056 (JP, U) Japanese Patent Publication 7- 110253 (JP, B2) Jikken Sho 17-17157 (JP, Y2) Patent 2881600 (JP, B2) (58) Fields investigated (Int.Cl. ⁷ , DB name) A47C 17/13 A47C 19/04

Claims (4)

(57) [Claims] 1. A main body having a first support frame for holding a first seat plate and a spacer seat plate, wherein the first support frame is provided with a head side support leg and a central support leg, and the main body. A multifunctional bed having a second support frame for holding a second seat plate and a slide portion provided with foot-side support legs on the second support frame. The spacer seat plate is detachably held from the first seat plate to the central support leg side, and the slide portion is located below the first seat plate at a predetermined position apart from the first seat plate. A guide member for guiding the slide portion, and when the slide portion is housed, the spacer seat plate is removed and the slide portion is moved from an opening formed between the first support frame and the first seat plate. A multifunctional bed characterized by being inserted. 2. The multifunction bed according to claim 1, wherein the spacer seat plate is an elongated seat plate having the same width as the lateral width of the first seat plate. 3. The guide member includes a pair of arms, and the slide portions are provided on the pair of arms from a position within a plane including the first seat plate to a predetermined position below the first seat plate. The multi-functional bed according to claim 1 or 2, wherein a tapered portion for guiding is provided. 4. The guide member includes a pair of long grooves provided on inner side surfaces of both side plates of the first support frame, and a pair of guides provided on outer side surfaces of both side plates of the slide portion. 3. The multi-function bed according to claim 1, wherein the guides are inserted into the pair of long grooves to guide the slide portion to a predetermined position.