Foldable bed

Abstract

To enhance portability and versatility such as being freely carried like a so-called bag and being used in various places by realizing size reduction of the whole when folded.SOLUTION: In constructing a folding bed 1 in which a user H can lie on the upper surface 3u of a seat part 3 having at least one sheet material attached to the upper end of a frame unit part 2 formed by combining a plurality of frame materials frp..., frame members fsp, fsq... that can be positioned at least horizontally are provided on both the left and right sides; and the frame unit 2 is foldable by bending a plurality of positions in the longitudinal direction De, and is provided with two or more handles 4... that can be held by hand by being attached to the frame members fsp, fsq... on both the left and right sides, so that the bed function and stretcher function are combined.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a folding bed including a frame unit portion configured by combining a plurality of frame members and a seat portion provided at the upper end of the frame unit portion.

Background Art

[0002] Conventionally, as a folding bed including a frame unit portion configured by combining a plurality of frame members and a seat portion provided at the upper end of the frame unit portion, a folding bed body and an assembled stretcher described in Patent Document 1 and a stretcher bed for an ambulance described in Patent Document 2 are known.

[0003] The folding bed body and the assembled stretcher described in the same Document 1 are intended to provide an assembled stretcher that can be in a compact form when not in use and can be easily assembled. Specifically, it consists of a surrounding frame portion and a bed sheet stretched over the frame portion, and in a folding bed body having a structure in which both ends are folded in the middle part in the longitudinal direction, a bending stopper for preventing bending at the folding position of the frame portion when the bed portion is extended is provided, a lower base portion with casters attached to both front and rear ends of the lower surface, and a bed portion installed on the lower base portion. The lower base portion and the bed portion are separable and are configured as an assembled stretcher in which the bed portion is a folding bed body.

[0004] Also, the stretcher bed for an ambulance described in the same Document 2 is composed of a bed (stretcher) portion of the stretcher for an ambulance, a leg portion provided with a plurality of casters for supporting the bottom of the bed portion, and safety frames provided on both sides so that the injured do not fall from the stretcher.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, the conventional folding beds described in Patent Documents 1 and 2 mentioned above had the following problems.

[0007] That is, since they are made assuming specific purposes such as for ambulances or for use in hospitals, their functions are limited or additional functions are added. Usually, the bed part is configured to be longer than the height of the user, so the overall structure tends to be large. Moreover, basically, since it is moved using casters, it does not have a sufficient folding function. As a result, there are difficulties in portability and versatility, for example, it cannot be freely carried around in a bag-like manner.

[0008] On the other hand, if the two functions of the bed function and the stretcher function can be utilized, the convenience can be further enhanced. However, when using the bed function, stability is required, and on the other hand, when using the stretcher function, lightness is required. Therefore, in conventional beds, no bed that can satisfy both functions, such as using the bed part as a stretcher by removing it, has been proposed, and the practical application of a new bed that can satisfy these functions simultaneously has been demanded.

[0009] An object of the present invention is to provide a folding bed that solves the problems existing in such background art.

Means for Solving the Problems

[0010] In order to solve the above-described problems, the present invention provides a folding bed 1 configured by combining a frame unit portion 2 formed by combining a plurality of frame members frp... and a sheet portion 3 having at least one sheet member provided at the upper end of the frame unit portion 2, on which a user H can lie on the upper surface 3u of the sheet portion 3. The folding bed 1 has frame members fsp, fsq... that can be arranged at least horizontally on both the left and right sides, and is configured to be foldable by bending a plurality of positions in the longitudinal direction De of the frame unit portion 2. By providing two or more handle portions 4... that can be held by hand by attaching them to the frame members fsp, fsq... on both the left and right sides, the folding bed 1 is characterized by combining a bed function and a stretcher function.

[0011] In this case, according to a preferred aspect of the invention, the frame unit portion 2 can be provided with at least three bending portions Kf, Km, Kr in the longitudinal direction De. Further, the frame unit portion 2 can be provided with head frame members frp, frq that incline during use and on which the head Hh of the user H can be placed. On the other hand, the sheet portion 3 is provided with a plurality of cylindrical holding portions 11... through which the frame members fsp, fsq... are inserted on both the left and right sides of the lower surface, and can be provided with cylindrical pocket portions 12... into which the tip ends of the respective frame members frp, frq, fvp, fvq are inserted. Furthermore, the sheet portion 3 is composed of two layers, an upper layer 3f and a lower layer 3s. The mesh sheet 13 is used for the upper layer 3f, and one or two or more reinforcing sheets 14... are used for the lower layer 3s. By forming one or two or more openings 15... between the reinforcing sheets 14..., only the mesh sheet 13 can be exposed at a portion where the reinforcing sheets 14... do not exist. On the other hand, the handle portions 4... can be attached by hanging them from the frame members fsp, fsq... on both the left and right sides.

Effects of the Invention

[0012] According to the folding bed 1 according to the present invention having such a configuration, the following remarkable effects can be obtained.

[0013] (1) It has frame members fsp, fsq... that can be arranged at least horizontally on both the left and right sides, and is configured to be foldable by bending the frame unit part 2 at multiple positions in the longitudinal direction De. By providing two or more handle parts 4... that can be held by hand by attaching them to the frame members fsp, fsq... on both the left and right sides, since it combines the bed function and the stretcher function, overall miniaturization during folding can be achieved. Thereby, it can be freely carried in a so-called bag-like feeling and used in various places, enhancing portability and versatility.

[0014] (2) When used as a bed function, it can be stably installed due to the overall integrity. When used as a stretcher function, the foldable bed 1 with a lightweight overall structure can be directly utilized by two or more handle parts 4... attached to the frame members fsp, fsq... on both the left and right sides, thus fully satisfying both the bed function and the stretcher function.

[0015] (3) In a preferred embodiment, when constructing the frame unit part 2, by providing at least three bending parts Kf, Km, Kr in the longitudinal direction De, sufficient miniaturization during folding can be ensured, and the installation points can be increased, thus ensuring a stable installation state. In addition, since the height of the upper surface 3u of the seat part 3 that becomes the upper end of the frame unit part 2 can be lowered, the functionality as a stretcher can be further enhanced.

[0016] (4) In a preferred embodiment, if the frame unit part 2 is provided with head frame members frp, frq that can support the head Hh of the user H and incline during use, the head Hh of the lying user H can be raised relative to the body part, thereby further enhancing the safety and usability of the user H.

[0017] (5) In a preferred embodiment, when constructing the sheet portion 3, a plurality of cylindrical holding portions 11... through which the frame members fsp, fsq... are inserted are provided on both the left and right sides of the lower surface, and cylindrical pocket portions 12... into which the tip ends of the frame members frp, frq, fvp, fvq are inserted are provided. In this way, the sheet portion 3 can be directly and reliably attached to the frame unit portion 2, so that it can be easily attached without using a separate fixture and without generating obstructive portions such as protrusions.

[0018] (6) In a preferred embodiment, when constructing the sheet portion 3, it is composed of two layers, an upper layer 3f and a lower layer 3s. A mesh sheet 13 is used for the upper layer 3f, one or two or more reinforcing sheets 14... are used for the lower layer 3s, and one or two or more openings 15... are formed between the reinforcing sheets 14... so that only the mesh sheet 13 is exposed at the portions where the reinforcing sheets 14... do not exist. In this way, the air permeability (water permeability) of at least a partial sheet portion 3 can be ensured, so that the drainage property of the upper surface 3u of the sheet portion 3 can be enhanced.

[0019] (7) In a preferred embodiment, when providing the handle portion 4..., if it is suspended and attached from the frame members fsp, fsq... on both the left and right sides, the flexibility of the handle portion 4... can be ensured. Therefore, when folding, problems that would be obstructive can be avoided, and when in use, followability can be ensured, so that the usability and safety can be enhanced.

Brief Description of the Drawings

[0020]

Figure 1

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Figure 13

Embodiments for Carrying Out the Invention

[0021] Next, preferred embodiments according to the present invention will be given and described in detail with reference to the drawings.

[0022] First, the configuration of the folding bed 1 according to the present embodiment will be described with reference to FIGS. 1-10 (FIG. 13).

[0023] As shown in FIG. 1, the folding bed 1 according to the present embodiment is roughly composed of a frame unit part 2 and a sheet part 3.

[0024] The frame unit part 2 is composed of a combination of a plurality of frame materials frp, fsp, ftp..., and includes a horizontal frame configuration part Mh that mainly constitutes the bed part and a vertical frame configuration part Mv that mainly constitutes the leg part. For each frame material frp, fsp, ftp..., for example, a pipe material using a lightweight metal material such as aluminum can be used.

[0025] As shown in FIG. 3, the horizontal frame component Mh includes a pair of right component Mhp and left component Mhq arranged on both the left and right sides. As shown in FIG. 1, the right component Mhp sequentially arranges a head frame member frp, a first frame member fsp, a second frame member ftp, a third frame member fup, and a foot frame member fvp from the head Hh side to the foot Hf side (front side) of the user H, and connects them with rotation connection parts 21p, 22p, 23p, 24p respectively.

[0026] Also, the left component Mhq is configured in the same way as the right component Mhp except for the point of being symmetrically configured on the left and right, and includes a head frame member frq, a first frame member fsr, a second frame member ftq, a third frame member fuq, and a foot frame member fvq.

[0027] On the other hand, the vertical frame component Mv prepares six leg frame members fa... formed to a predetermined length. As a result, as shown in FIGS. 3 and 4, the intermediate positions of the symmetric leg frame members fa and fb are rotatably connected to form the X leg part 31, the intermediate positions of the symmetric leg frame members fc and fd are rotatably connected to form the X leg part 32, and the intermediate positions of the symmetric leg frame members fe and ff are rotatably connected to form the X leg part 33.

[0028] Then, as shown in FIGS. 3 and 4, the upper ends of the leg frame members fa and fb are respectively connected to the rotation connection parts 21p and 21q, the upper ends of the leg frame members fc and fd are similarly connected to the rotation connection parts 23p... respectively, and further, the upper ends of the leg frame members fe and ff are similarly connected to the rotation connection parts 24p... respectively. Installation parts 34p, 35p, 36p are rotatably attached to the lower right ends of each leg frame member fa...ff, and installation parts 34q, 35q, 36q are also rotatably attached to the lower left ends.

[0029] Also, as shown in FIG. 1, the head frame members frp, frq are connected to the rotation connection parts 21p, 21q at the upper intermediate positions, the lower ends are connected to the installation parts 35p, 35q, and the foot frame members fvp, fvq are joined to the rotation connection parts 25p... at the intermediate positions.

[0030] Furthermore, the rotation connection part 23p and the installation part 34p are connected by the cross frame member fgp to form the right X leg part 37p together with the head frame member frp. Note that 26p indicates the connection part of the X leg part 37p. Also, the rotation connection part 23p and the installation part 36p are connected by the cross frame member fhp, and the rotation connection part 25p and the installation part 35p are connected by the cross frame member fip. The cross frame members fhp and fip form the right X leg part 38p. Note that 27p indicates the connection part of the X leg part 38p. The above describes the right side configuration. The left side configuration is also constructed in the same manner except that it is symmetric to the right side configuration with respect to left - right symmetry. 37q and 38q indicate the left X leg parts.

[0031] On the other hand, four leg frame members fxp, fyp... are prepared. The upper ends of the two right leg frame members fxp and fyp are respectively connected to the rotation connection parts 22p and 24p, and the middle parts are passed through the connection parts 26p and 27p to attach the installation parts 40p and 41p to the lower ends. Note that the left side configuration can also be constructed in the same manner as the right side configuration except for the left - right symmetry with respect to the right side configuration.

[0032] Figure 5 shows a specific configuration example of the rotation connection part 25p in the circular A part indicated by the virtual line in Figure 1. That is, the rotation connection part 25p integrally formed of plastic or the like is used. The foot frame member fvp is connected to this rotation connection part 25p by the shaft part sa, the upper end of the cross frame member fip is connected by the shaft part sb, and further, the upper end of the leg frame member ff of the X leg part 33 can be connected by the shaft part sc. The other rotation connection parts 21p..., 22p..., 23p..., 24p... can also be formed in the same manner according to their purposes.

[0033] With the above configuration, at least three bending portions Kf, Km, and Kr (see Fig. 13) can be provided in the longitudinal direction De, so that at least two X-leg portions 37p and 38p can be formed in the longitudinal direction De as viewed from the side. As a result, sufficient miniaturization during folding can be ensured, and the number of installation points can be increased, so that a stable installation state can be ensured. In addition, since the height of the upper surface 3u of the seat portion 3 that becomes the upper end of the frame unit portion 2 can be lowered, the functionality as a stretcher can be further enhanced.

[0034] In addition, when configuring the frame unit portion 2, since the head frame members frp and frq that can place the head Hh of the user H and are inclined during use are provided, the head Hh of the lying user H can be raised with respect to the body portion, and the safety and usability of the user H can be further enhanced.

[0035] On the other hand, as shown in Figs. 1 and 2, two or more handle portions 4... that can be held by hand are provided on each of the frame members fsp, fup... on both the left and right sides. When attaching one handle portion 4, it can be attached by suspending it from the frame member fsp. That is, as shown in Fig. 6, both ends of a flexible support string 4s such as a string are connected to both ends of a rod-shaped handle portion body 4m that can be gripped by hand, and this support string 4s and the frame member fsq can be fixed by a ring-shaped fixing string 4c.

[0036] By configuring in this way, the flexibility of the handle portions 4... can be ensured, so that during folding, problems that get in the way can be avoided, and during use, followability can be ensured, so that usability and safety can be enhanced. Although an example of attaching to the left frame member fsq has been described, the handle portions 4... attached to other frame members ftp, fsq, and ftq can be configured in the same way. In addition, 4r indicates a regulation belt that connects between the left handle portion 4 (fixing string 4c) and the corresponding right handle portion 4 (fixing string 4c).

[0037] On the other hand, as shown in FIGS. 2 and 7-10, the seat portion 3 is configured. The seat portion 3 includes a seat portion 3 having at least one sheet material provided at the upper end of the frame unit portion 2. Thereby, as shown in FIG. 2, the user H can lie on the upper surface 3u of the seat portion 3.

[0038] In this case, as shown in FIG. 9, the seat portion 3 is composed of two layers, an upper layer 3f and a lower layer 3s. A mesh sheet 13 is used for the upper layer 3f, and a plurality of reinforcing sheets 14... are used for the lower layer 3s. Thereby, as shown in FIG. 7, one or two or more openings 15... are provided between the reinforcing sheets 14..., and only the mesh sheet 13 can be exposed at a portion where the reinforcing sheet 14 does not exist.

[0039] In the case of the example, as shown in FIG. 2, a mesh sheet 13 that covers the entire upper surface of the frame unit portion 2 is provided, and a pair of fixing sheets 51p and 51q are sewn on both sides of the back surface (lower surface) of this mesh sheet 13. A plurality of reinforcing sheets 14... formed in a rectangular shape are sewn at predetermined intervals in the longitudinal direction De between the fixing sheets 51p and 51q. Thereby, a plurality of openings 15... are formed at predetermined intervals. By configuring in this way, since the air permeability (water permeability) in at least a partial seat portion 3 can be ensured, the drainage property with respect to the upper surface 3u of the seat portion 3 can be enhanced.

[0040] Also, as shown in FIGS. 1 and 3, a plurality of cylindrical holding portions 11... through which the frame members frp, frq, fvp, and fvq are inserted are provided at predetermined positions on both the left and right sides of the lower surface of the seat portion 3. Cylindrical pocket portions 12... into which the tip ends of the frame members frp, frq, fvp, and fvq are inserted are provided at four locations on both the left and right sides of the lower surface of the seat portion 3 and at the front and rear end portions. In this case, it is desirable that the holding portions 11... and the pocket portions 12... are formed of the same material as the reinforcing sheet 14.

[0041] With such a configuration, the sheet portion 3 can be directly and surely attached to the frame unit portion 2, so that it can be easily attached without using a separate fixture and without creating any obstructive parts such as protrusions.

[0042] Next, the usage method and functions of the foldable bed 1 according to the present embodiment will be described with reference to FIGS. 11 - 13 and each figure.

[0043] When not in use, the foldable bed 1 according to the present embodiment can be stored in the storage bag 61 and carried by one hand as shown in FIG. 11. This storage bag 61 has a length in the longitudinal direction of about 100 [cm] and a length in the width direction of about 20 [cm]. In FIG. 13, 62a and 62b are handles, and 63 is a detachable fastener.

[0044] Now, assume the case of using the foldable bed 1. In this case, open the fastener 63 of the storage bag 61 and take out the foldable bed 1 in the folded state shown in FIG. 12 which is stored therein. Note that FIGS. 12 and 13 omit the description of the sheet portion 3 in order to make the bending state of the frame unit portion 2 easier to understand, and only show the frame unit portion 2.

[0045] FIG. 12 shows the foldable bed 1 in the taken - out state. Then, from this state, hold the end of the head side of the sheet portion 3 attached to the head frame members frp and frq of the frame unit portion 2 and the end of the foot side of the sheet portion 3 attached to the foot frame members fvp and fvq by hand and just spread them out.

[0046] As a result, the bent portions Kf, Km, and Kr in the frame unit portion 2 gradually expand, and can be brought into the use state shown in FIG. 1 through the intermediate state shown in FIG. 13. That is, it can be set to the use state with one touch. In the use state, all of the first frame member fsp..., the second frame member ftp..., the third frame member fup..., and the foot frame member fvp... are in a horizontal state, the upper surface 3u of the seat portion 3 becomes a flat surface, and a part of the seat portion 3h on the head side is in an inclined state. Thereby, it can be used as the bed function shown in FIGS. 1 and 2 in which a user H such as a patient or an injured person can lie down.

[0047] On the other hand, in this state, a plurality of carriers can hold and lift the four handle portions 4... with their hands (one hand or both hands), so that the folding bed 1 can be carried as it is and used as a stretcher function. In this case, since a plurality of X-leg portions 37p... are used, the height of the seat portion 3 can be set to a low position, so that the vertical frame component Mv etc. can be carried in the same state.

[0048] On the other hand, when the folding bed 1 is not used, an operation reverse to the use time is performed, that is, the end on the head side of the seat portion 3 attached to the head frame members frp and frq of the frame unit portion 2 and the end on the foot side of the seat portion 3 attached to the foot frame members fvp and fvq are held by hand, lifted straight upward, and the two are brought closer to each other, then it can be folded with one touch as shown in FIG. 12 through the state of FIG. 13. Thereby, it can be stored in the storage case 61 as it is.

[0049] Therefore, the foldable bed 1 according to the present embodiment, as a basic configuration, has frame members fsp, fsq... that can be arranged at least horizontally on both the left and right sides, and is configured to be foldable by bending a plurality of positions in the longitudinal direction De of the frame unit portion 2. By providing two or more handle portions 4... that can be held by hand by attaching them to the frame members fsp, fsq... on both the left and right sides, since it combines the bed function and the stretcher function, it is possible to achieve miniaturization of the whole when folding. As a result, it can be freely carried around in a so-called bag-like manner and used in various places, etc., and the portability and versatility can be enhanced. Further, when used as a bed function, it can be stably installed as a bed due to the overall integrity, and when used as a stretcher function, the foldable bed 1 configured to be lightweight as a whole can be carried as a stretcher as it is by two or more handle portions 4... attached to the frame members fsp, fsq... on both the left and right sides. Therefore, both independent functions of the bed function and the stretcher function can be sufficiently satisfied.

[0050] As described above, the preferred embodiments have been described in detail, but the present invention is not limited to such embodiments, and can be arbitrarily changed, added, or deleted in terms of the detailed configuration, shape, material, quantity, numerical value, etc., without departing from the gist of the present invention.

[0051] For example, the case where four handle parts 4... are provided has been shown, but the quantity of the handle parts 4... and the positions where the handle parts 4... are provided can be set arbitrarily. Also, although it is desirable that the frame unit part 2 is provided with three bending parts Kf, Km, and Kr in the longitudinal direction De, the number of bending parts to be provided, such as five or seven, is arbitrary. In addition, although the case where the head frame members frp, frq for forming the inclined seat part 3h capable of holding the head Hh of the user H is provided in the frame unit part 2 has been shown, it may be configured in the same manner as the foot frame member fvp, fvq side, and it is not necessarily required to provide the head frame members frp, frq. Further, it is desirable that the seat part 3 is provided with a plurality of cylindrical holding parts 11... through which the frame members fsp, fsq... are inserted on both the left and right sides of the lower surface, and cylindrical pocket parts 12... into which the tip ends of the respective frame members frp, frq, fvp, fvq are inserted, but it may be attached by other known means. On the other hand, the seat part 3 is composed of two layers, an upper layer 3f and a lower layer 3s. A mesh sheet 13 is used for the upper layer 3f, a reinforcing sheet 14 is used for the lower layer 3s, and one or two or more openings 15... are provided in this reinforcing sheet 14, so that it is desirable to expose only the mesh sheet 13 at the part where the reinforcing sheet 14 does not exist. However, it may be composed of a single sheet material or three or more layers, and the configuration of the seat part 3 is arbitrary.

Industrial Applicability

[0052] The foldable bed according to the present invention can be used as a multifunctional foldable bed having a bed function or a stretcher function for medical or non-medical use.

Explanation of Reference Numerals

[0053] 1: Foldable bed, 2: Frame unit part, 3: Sheet part, 3u: Upper surface of the sheet part, 3h: Inclined sheet, 3f: Upper layer, 3s: Lower layer, 4…: Handle part, 11…: Holding part, 12…: Pocket part, 13: Mesh sheet, 14…: Reinforcing sheet, 15…: Opening, H: User, Hh: Head of the user, fsp: Frame material, fsq: Frame material, frp: Head frame material, frq: Head frame material, De: Longitudinal direction, Kf: Bending part, Km: Bending part, Kr: Bending part

Claims

1. In a folding bed configured by combining a plurality of frame members to form a frame unit portion and having a sheet portion with at least one sheet material provided at the upper end of the frame unit portion, allowing a user to lie on the upper surface of the sheet portion, the folding bed has frame members that can be arranged at least horizontally on both the left and right sides, and is configured to be foldable by bending a plurality of positions in the longitudinal direction of the frame unit portion. By providing two or more handle portions that can be held by hand by attaching them to the frame members on both the left and right sides, the folding bed is characterized by combining a bed function and a stretcher function.

2. The folding bed according to Claim 1, wherein the frame unit portion has at least three bending portions in the longitudinal direction.

3. The folding bed according to Claim 1, wherein the frame unit portion has a head frame member that inclines during use and can support the user's head.

4. The folding bed according to Claim 1, wherein the sheet portion has a plurality of cylindrical holding portions through which the frame members are inserted on both the left and right sides of the lower surface, and has a cylindrical pocket portion into which the tip side of the frame member is inserted.

5. The folding bed according to Claim 1, wherein the sheet portion is composed of two layers, an upper layer and a lower layer. A mesh sheet is used for the upper layer, and one or more reinforcing sheets are used for the lower layer. By forming one or more openings between the reinforcing sheets, only the mesh sheet is exposed at the site where the reinforcing sheets do not exist.

6. The folding bed according to Claim 1, wherein the handle portion is attached by hanging it from the frame members on both the left and right sides.

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