JP2019072089A - Extensible sofa bed - Google Patents

Abstract

To provide an extensible sofa bed that can be used as a safe and comfortable bed in an extension state and can be used as a sofa in a contraction state.SOLUTION: An extensible sofa bed 1 includes: a first frame body 2; a second frame body 3 constituted to be freely pulled-out/pushed-in with respect to the first frame body 2; and a third frame body 4 constituted to be freely pulled-out/pushed-in with respect to the second frame body 3. The first frame body 2 and the second frame body 3 respectively have nearly the same width as those of the second frame body 3 and the third frame body 4. The second frame body 3 and the third frame body 4 are respectively supported to be freely pulled-out/pushed-in respectively on the first frame body 2 and the second frame body 3.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a telescopic sofa bed.

  As a longitudinally extendable bed, for example, U.S. Pat. No. 5,958,095 discloses an expandable storage bed having a front floor and a back floor that are slidable relative to one another. The telescopic storage bed of Patent Document 1 can be used as a bed by being put in a stretched state, and can be stored compactly appropriately by being put in a contracted state. However, since the telescopic storage bed of Patent Document 1 can only be shrunk to a half length in the longitudinal direction, it can be stored in an appropriately compact state in its contracted state, but is too long because it is too long Not suitable for use with

  On the other hand, in order to solve the problem of the telescopic storage bed of Patent Document 1 described above, Patent Document 2 discloses a bed which can be shrunk to a length of 1/3 in the longitudinal direction. The bed of Patent Document 2 includes a first single body, a second single body that can be fitted inside the first single body, and a third single body that can be fitted inside the second single body, and can extend and contract in the longitudinal direction It is configured. In the bed of Patent Document 2, the second single body and the third single body are respectively pulled out from the first single body and the second single body to be in an extended state, and can be used as a bed; The single substance is pushed into each of the first single substance and the second single substance to be in a contracted state so that it can be compacted and can be used as a chair (sofa).

Utility model registration 3145686 gazette Japanese Utility Model Publication No. 59-38925

  However, in the bed of Patent Document 2, the second single body and the third single body are formed in such sizes that the whole can be accommodated in the interiors of the first single body and the second single body, respectively. When pulled out from each of the two single members, steps in the height direction and the width direction are generated between the first single, second single and third single members. A step in the height direction hinders the user from sleeping well, and a step in the width direction poses a risk of hooking a part of the user's body or clothes.

  The present invention has been made in view of the above problems, and it can be used as a bed that is safer and comfortable to sleep compared to a conventional bed in a stretched state, and can be used as a sofa in a contracted state, that is, an extendable sofa Intended to provide a bed.

  The telescopic sofa bed according to the present invention comprises a first frame, a second frame configured to be freely pulled out / inserted along a substantially horizontal direction with respect to the first frame, and a second frame. And a third frame configured to be freely pulled out / pushed in along a substantially horizontal direction, wherein the second frame and the third frame are provided for each of the first frame and the second frame. A telescopic sofa bed configured to be extensible and retractable by pulling out / pushing in each of the body, wherein each of the first frame and the second frame is the second frame and the third frame. It has substantially the same width as each of the body, and supports each of the second frame and the third frame on each of the first frame and the second frame so as to be freely extractable / pushable. Configured such that the first and second frames are A telescopic sofa bed having a first opening and a second opening that open upward in a substantially vertical direction, the telescopic sofa bed being in an extended state the first opening of the first frame and the first opening; A first top plate and a second top plate that can be attached and removed to close each of the second openings of the two frames, and a third top plate that can be installed on the third frame The telescopic sofa bed is arranged such that the first top plate, the second top plate, and the third top plate form a substantially flat substantially horizontal surface in an extended state, and can be used as a bed In the contracted state, the third top plate is disposed so as to form a substantially flat substantially horizontal surface, which can be used as a sofa.

  Further, in the telescopic sofa bed, the second frame is pulled out / pushed in with respect to the first frame in conjunction with an operation of pulling out / pushing in the third frame with respect to the second frame. It is preferable that the telescopic sofa bed can be extended and contracted only by the operation of pulling out / pushing the third frame to the second frame.

  Further, the first frame includes a first sliding contact portion in sliding contact with the second frame along the substantially horizontal direction, and the first sliding portion is when the second frame is pulled out. And a second sliding contact portion configured to support the first top plate, the second frame being in sliding contact with the third frame along a substantially horizontal direction, and the second sliding contact portion The first top plate and the second top plate are configured to support the second top plate when the third frame is pulled out, and the first sliding contact portion and the second top plate are respectively configured to support the second top plate. It is preferable that pushing of each of the second frame and the third frame is restricted by being supported by each of the sliding contact portions.

  Further, each of the first frame and the second frame is used to restrict the second frame and the third frame to pull out the first frame and the second frame, respectively. , And the first top plate and the second top plate are respectively provided to the first sliding contact portion and the second sliding contact portion. It is supported, and pushing-in of each of said 2nd frame and said 3rd frame is controlled, and said 2nd engaging part and said 3rd engaging part are respectively said 1st frame and said 2nd frame. Preferably, the extended state of the extendable sofa bed is maintained by engaging each of the second frame body and the third frame body by restricting the respective drawers of the second frame body and the third frame body.

  Further, the first top plate and / or the second frame can be taken out so that the first frame can be taken out through the first opening or through the first opening and the second opening. It is preferable to provide the interior space which can divide | segment or fold and fold and store a top plate.

  Preferably, the first top plate and / or the second top plate is formed in a ladder shape having an odd number of ladder plates.

  The telescopic sofa bed further includes a fourth frame configured to be freely pulled out / inserted along a substantially horizontal direction with respect to the third frame, and the third frame is the fourth frame. It has a width substantially the same as the body, and is configured to support the fourth frame so as to be freely extractable / depressible on the third frame, and the third frame is disposed above the substantially vertical direction. A telescopic sofa bed having a third opening that opens towards the front, and the third top plate being removably configured to close the third opening in an extended state of the telescopic sofa bed; The electronic control apparatus further comprises a fourth top plate which can be installed on the fourth frame in a contracted state and an extended state, and the telescopic sofa bed in the extended state is the first top plate, the second top plate, The third top plate and the fourth top plate form a substantially flat substantially horizontal surface Are arranged, it can be used as bed in the contracted state, the fourth top plate is arranged so as to form a substantially flat substantially horizontal surface can preferably be used as a sofa.

  According to the present invention, it is possible to provide a telescopic sofa bed that can be used as a bed that is safer and comfortable to sleep in a stretched state as compared to a conventional bed, and can be used as a sofa in a contracted state. .

It is a perspective view which shows the expansion | extension state of the extendable sofa bed of one Embodiment of this invention. It is a perspective view which shows the contracted state of the extendable sofa bed of FIG. It is the perspective view which showed the expansion | extension state of the extendable sofa bed of FIG. 1, and abbreviate | omitted illustration of the top plate. It is a side view of the telescopic sofa bed of FIG. 1, (a) shows an extended state, (b) shows an intermediate state during transition from the extended state to the contracted state, and (c) shows the contracted state. It is a side view of the telescopic sofa bed of FIG. 1, (a) shows a contracted state, (b) shows an intermediate state during transition from the contracted state to the extended state, and (c) shows an extended state.

  Hereinafter, a telescopic sofa bed according to an embodiment of the present invention will be described with reference to the attached drawings. However, the following embodiment is an example to the last, and the telescopic sofa bed of this invention is not limited to the following embodiment.

  The telescopic sofa bed 1 of this embodiment is configured so as to be able to be pulled out / inserted along the substantially horizontal direction with respect to the first frame 2 and the first frame 2 as shown in FIGS. 1 and 2. And a third frame 4 configured to be freely pulled out / inserted along the substantially horizontal direction with respect to the second frame 3. The telescopic sofa bed 1 is telescopically configured by pulling out / pushing in each of the second frame 3 and the third frame 4 to each of the first frame 2 and the second frame 3. ing. The telescopic sofa bed 1 is in an extended state (the second frame 3 is pulled out from the first frame 2 in a substantially horizontal direction, and the third frame 4 is pulled out from the second frame 3 in a substantially horizontal direction) The state shown in FIG. 1) can be used as a bed. In the telescopic sofa bed 1, the second frame 3 is pushed into the first frame 2 along the substantially horizontal direction, and the third frame 4 is pushed into the second frame 3 along the substantially horizontal direction. Thus, it is put in a contracted state (the state of FIG. 2) and can be used as a sofa. Since the telescopic sofa bed 1 can be used as a bed or a sofa, the installation space can be saved by properly using it. In a room with many space constraints, such as a hotel, inn, hospital, apartment, apartment, etc., the indoor space can be effectively utilized by using the telescopic sofa bed 1.

  In the present specification, the term "bed" is used in a broad sense, including those used as a bed or bed, and is used not only as it is, but also with a mat or futon laid on it. It is used in the meaning including the thing. In addition, the term "sofa" is used herein to mean not only the term "sofa" generally used but also general chairs and stools used by the user for sitting.

  In the present specification, unless otherwise specified, the directions in which the second frame 3 and the third frame 4 are respectively pulled out / pushed into the first frame 2 and the second frame 3 are as follows: "Stretchable sofa bed 1 stretch direction D" (or simply "stretch direction D"), the second frame 3 and the direction in which the third frame 4 is pulled out the "extension side", the second frame The side in which the body 3 and the third frame 4 are pushed in is referred to as the “contracted side”. The telescopic direction D is the same as the longitudinal direction of the bed when the telescopic sofa bed 1 is used as a bed. In the present specification, unless otherwise specified, the terms “horizontal direction” and “vertical direction” are used on the assumption that the telescopic sofa bed 1 is installed on a substantially horizontal floor surface. . Further, with respect to each of the first frame 2 and the second frame 3, pulling out / pushing in each of the second frame 3 and the third frame 4 means that the first frame 2 and the second frame 3 Relative to each of the second frame 3 and the third frame 4 relative to the extension side / contraction side.

  Referring again to FIGS. 1 and 2, each of the first frame 2 and the second frame 3 has substantially the same width as each of the second frame 3 and the third frame 4, and the first frame On each of the body 2 and the second frame 3, the second frame 3 and the third frame 4 are supported so as to be freely extractable / pushable. Since the first frame 2, the second frame 3 and the third frame 4 have substantially the same width in this manner, the telescopic sofa bed 1 according to the related art has a step provided in the width direction. Compared to the bed, the risk of catching a part of the user's body or clothes is reduced, and the user can use it safely.

  The first frame 2 may have a width substantially the same as that of the second frame 3 and may be configured to support the second frame 3 on the first frame 2 so as to be freely pulled out / pushed in. Although not particularly limited, in the present embodiment, as shown in FIG. 1, the second frame 3 is provided with the first sliding contact portions 22 and 22 in sliding contact along the substantially horizontal direction, The second frame 3 is slidably brought into contact with the first sliding portions 22 and 22 and supported so as to be able to be pulled out / pushed in along the substantially horizontal direction. In the present embodiment, the second upper frame portion 33 of the second frame 3 described later is in sliding contact with the first sliding portions 22, 22 and supported by the first sliding portions 22, 22. Further, the first sliding contact portions 22, 22 have first guiding portions 22 a, 22 a for guiding the second frame 3 along the expansion / contraction direction D. The first guiding portions 22a, 22a are not particularly limited as long as they can guide the second frame 3 along the expansion / contraction direction D, but in the present embodiment, they are in the shape of grooves extending along the expansion / contraction direction D It is formed. The second frame 3 projects downward in the vertical direction of the second upper frame 33, and the second engaging portions 35, 35 (see FIG. 3) extending along the expansion / contraction direction D are the first guide portions 22a, 22a. By being guided along the telescopic direction D without meandering.

  In the present embodiment, as shown in FIGS. 1 and 3, in the present embodiment, the first frame 2 is extended and retracted with a pair of first side walls 2 a and 2 b extending substantially parallel to the extension direction D of the extendable sofa bed 1. The sofa bed 1 is provided with a first contraction side wall 2c and a first extension side wall 2d which extend substantially perpendicularly to the expansion and contraction direction D of the sofa bed 1, and is formed in a substantially rectangular parallelepiped shape as a whole. The first sliding contact portions 22, 22 described above are provided on the upper surfaces of the pair of first side walls 2a, 2b, and the first sliding contact portions 22, 22 and the first contraction side wall 2c and the first extension are provided. The top surface of the side wall 2d has substantially the same height. In addition, the first frame 2 has a first opening 21 opening upward in the substantially vertical direction. The first opening 21 has a pair of first side walls 2a and 2b, and a first opening 21. It is defined by the contraction side wall 2c and the first extension side wall 2d. Furthermore, an internal space S is formed in the first frame 2 below the first opening 21 inside the pair of first side walls 2a and 2b, the first contraction side wall 2c, and the first extension side wall 2d. It is done.

  In the present embodiment, as shown in FIG. 1 and FIG. 3, in the present embodiment, the headboard 8 is provided on the support wall 23 provided on the contraction side of the first contraction side wall 2 c, and the first frame 2 is telescopic. When the sofa bed 1 is used as a bed, it is arranged to be located on the head side of the user. The headboard 8 functions as a backrest when the telescopic sofa bed 1 is used as a sofa. However, the headboard 8 is provided at the extension end of the third frame 4 instead of the first frame 2, and the third frame 4 is used when the telescopic sofa bed 1 is used as a bed. It may be arranged to be located on the head side of the person.

  The first frame 2 is not particularly limited as long as it has sufficient strength to support the user when the telescopic sofa bed 1 is used as a bed and a sofa, and wood, resin, Any material such as metal can be adopted as the constituent material. Further, the first frame 2 may be the same constituent material as the second frame 3 and the third frame 4, or may be a constituent material different from the second frame 3 and the third frame 4. Good. In addition, although the first frame 2 is formed in a substantially rectangular parallelepiped shape in the present embodiment, it is limited to the present embodiment as long as at least the upper surface side thereof has a width substantially the same as that of the second frame 3. For example, the cross section perpendicular to the expansion and contraction direction D may be formed in a substantially trapezoidal shape.

  As shown in FIG. 1, the telescopic sofa bed 1 is in the extended state, that is, when the second frame 3 is pulled out of the first frame 2, the first opening 21 of the first frame 2 is A removable first top plate 5 is provided for closing. And the 1st sliding contact parts 22 and 22 of the 1st frame 2 are constituted so that the 1st top plate 5 may be supported, when the 2nd frame 3 is pulled out. Therefore, when the second frame 3 is pulled out of the first frame 2, the first top plate 5 is supported by the first sliding contact portions 22, 22 of the first frame 2, and the first opening 5 Close 21 In addition, the telescopic sofa bed 1 is configured such that the first top plate 5 is supported by the first sliding contact portions 22 and 22 so that the pushing-in of the drawn second frame 3 is restricted. There is. More specifically, when the second frame 3 is pushed in while the first top plate 5 is supported by the first sliding contact portions 22, 22, the second upper side frame portion 33 of the second frame 3 Is in contact with the end on the extension side of the first top plate 5, and the end on the contraction side of the first top plate 5 is in contact with the support wall 23 (or the first contraction side wall 2 c) of the first frame 2. , The further pushing of the second frame 3 is regulated. As described above, since the pushing-in of the second frame 3 is restricted only by placing the first top plate 5 on the first sliding contact portions 22, 22, the pushing-in of the second frame 3 is restricted. Therefore, the number of parts of the telescopic sofa bed 1 can be reduced. The first frame 2 optionally supports the first top plate 5 along the periphery of the first opening 21 to support the first top plate 5 together with the first sliding contact portions 22 and 22. A support (not shown) may be provided.

  When the telescopic sofa bed 1 is used as a bed, the first top plate 5 closes the first opening 21 of the first frame 2 to support at least a part of the user. When the first top plate 5 is supported by the first sliding contact portions 22 and 22 of the first frame 2, the first top plate 5 and the second top plate 6 and the third top plate 7, which will be described later, It is configured to form. In the present embodiment, as shown in FIG. 1, in the present embodiment, the first top plate 5 has substantially flat surfaces, is disposed at substantially equal intervals, and has odd numbers having substantially the same shape and weight as each other (illustrated example In the above, it is formed in a ladder-like shape provided with seven ladder plates 51. The first top plate 5 can lift the first top plate 5 in a well-balanced manner by gripping the center ladder plate 51 of the odd number of ladder plates 51. The first top plate 5 is provided on the lower surface of the insulator plate 51 with a first top plate leg 52 contacting the first sliding contact portions 22 and 22 of the first frame 2, and a pair of first first frames 52. A first top plate engaging portion 53 engaged with the inner end surfaces of the side walls 2a and 2b, the first contraction side wall 2c, and the first extension side wall 2d is provided. The movement of the first top plate 5 in the horizontal direction is restricted by the engagement of the first top plate engaging portion 53 with the inner end face of the first frame 2, and the deviation in the horizontal direction is suppressed. Further, as described in detail later, the first top plate 5 is formed so as to be dividable so as to be accommodated in the internal space S of the first frame 2 (in the illustrated example, with respect to the expansion and contraction direction D) 2 split vertically). However, the first top plate 5 closes the first opening 21 to support at least a part of the user, and forms a substantially flat substantially horizontal surface with the second top plate 6 and the third top plate 7. If it is configured, it is not limited to the present embodiment, and may be formed, for example, in a foldable manner, or may be formed in a continuous substantially flat plate shape. Moreover, if the 1st top plate 5 has the intensity | strength which supports at least one part of a user, closing the 1st opening 21 of the 1st frame 2, the constituent material will be limited especially. However, any material such as wood, resin, metal can be adopted as the constituent material.

  The second frame 3 has substantially the same width as the first frame 2 and the third frame 4 and is supported on the first frame 2 so as to be freely pulled out / pushed in. It is configured to support the third frame 4 so as to be extractable / pushable. The second frame 3 is not particularly limited as long as it has the above-described configuration, but in the present embodiment, as shown in FIGS. 1 and 3, the first slide of the first frame 2 is not particularly limited. A second upper frame 33 slidingly contacting the contact portions 22 and 22 and a second leg 34 provided at an end of the second upper frame 33 on the side (extension side) away from the first frame 2 Have. The second upper frame 33 extending substantially in the horizontal direction and the second leg 34 extending downward in the substantially vertical direction from the second upper frame 33 are connected to each other in a substantially L shape in a side view. The second upper frame portion 33 is supported by the first sliding portions 22 and 22 of the first frame 2 and the second leg 34. The second upper frame portion 33 of the second frame 3 is provided with second sliding contact portions 32, 32 in sliding contact with the third frame 4 along the substantially horizontal direction. The third frame 4 is in sliding contact with the second sliding contact portions 32, 32, and is supported by the second sliding contact portions 32, 32 in a substantially horizontal direction so as to be freely pulled out / pushed in. In the present embodiment, a third upper frame 43 of a third frame 4 described later is in sliding contact with the second sliding portions 32, 32 and supported by the second sliding portions 32, 32. Further, the second sliding contact portions 32, 32 have second guide portions 32a, 32a for guiding the third frame 4 along the expansion / contraction direction D. The second guide portions 32a, 32a are not particularly limited as long as they can guide the third frame 4 along the expansion / contraction direction D, but in the present embodiment, they are in the form of grooves extending along the expansion / contraction direction D It is formed. The third frame 4 projects downward in the vertical direction of the third upper frame 43, and the third engaging portions 45, 45 (see FIG. 3) extending along the expansion / contraction direction D are the second guide portions 32a, 32a. By being guided along the telescopic direction D without meandering.

  In the present embodiment, as shown in FIGS. 1 and 3, the second upper frame 33 of the second frame 3 is a pair of second upper frames 33 extending substantially parallel to the expansion / contraction direction D of the expansion / contraction sofa bed 1. Side walls 33a and 33b, and a second contraction side wall 33c and a second extension side wall 33d which extend substantially perpendicularly to the expansion and contraction direction D of the extendable sofa bed 1 are provided. The second sliding contact portions 32, 32 described above are provided on the upper surfaces of the pair of second side walls 33a, 33b, and the second sliding contact portions 32, 32, the second contraction side wall 33c, and the second extension The top surface of the side wall 33d has substantially the same height. Further, the second frame 3 has a second opening 31 that opens upward in the substantially vertical direction, but the second opening 31 has a pair of second side walls 33a and 33b, and a second opening 31. It is defined by the contraction side wall 33c and the second extension side wall 33d.

  The second frame 3 is not particularly limited as long as the second frame 3 has a strength capable of supporting the user when using the telescopic sofa bed 1 as a bed and a sofa, and wood, resin, Any material such as metal can be adopted as the constituent material. The second frame 3 may be the same constituent material as the first frame 2 or the third frame 4, or may be a constituent material different from the first frame 2 or the third frame 4. Good. Further, although the second frame 3 is formed in a substantially L shape in a side view in the present embodiment, the second frame 3 can be pulled out / inserted in the substantially horizontal direction with respect to the first frame 2, and the third frame 4 is not limited to the present embodiment as long as it can be freely pulled out / pushed in along the substantially horizontal direction, and the angle between the second upper frame 33 and the second leg 34 is 90, for example. It may be an angle different from °.

  As shown in FIG. 1, the telescopic sofa bed 1 has the second opening 31 of the second frame 3 in the extended state, that is, when the third frame 4 is pulled out of the second frame 3. A removable second top plate 6 is provided for closing. And the 2nd sliding contact parts 32 and 32 of the 2nd frame 3 are constituted so that the 2nd top plate 6 may be supported, when the 3rd frame 4 is pulled out. Therefore, the second top plate 6 is supported by the second sliding contact portions 32 and 32 of the second frame 3 when the third frame 4 is pulled out of the second frame 3 and the second opening Close 31 The telescopic sofa bed 1 is configured such that the second top plate 6 is supported by the second sliding contact portions 32, 32 so that pushing-in of the pulled out third frame 4 is restricted. More specifically, when the third frame 4 is pushed in while the second top plate 6 is supported by the second sliding contact portions 32, 32, the third upper side frame portion 43 of the third frame 4 Is in contact with the extension end of the second top plate 6, and the contraction end of the second top plate 6 is in contact with the first top plate 5 (or the second contraction side wall 33c of the second frame 3). Since it touches, the further pushing-in of the 3rd frame 4 is controlled. As described above, since the pushing-in of the third frame 4 is restricted only by placing the second top plate 6 on the second sliding contact portions 32, 32, the pushing-in of the third frame 4 is restricted. Therefore, the number of parts of the telescopic sofa bed 1 can be reduced. The second frame 3 optionally supports the second top plate 6 along the periphery of the second opening 31 in order to support the second top plate 6 together with the second sliding contact portions 32 and 32. A support (not shown) may be provided.

  When the telescopic sofa bed 1 is used as a bed, the second top 6 closes the second opening 31 of the second frame 3 and supports at least a part of the user. And, the second top plate 6 forms a substantially flat substantially horizontal surface together with the first top plate 5 and the third top plate 7 when supported by the second sliding contact portions 32, 32 of the second frame 3. Is configured as. In the present embodiment, as shown in FIG. 1, the second top plate 6 has substantially flat surfaces, is disposed at equal intervals, and has odd numbers (in the illustrated example, the shapes and weights are substantially the same as each other). It is formed in the shape of a ladder provided with the ladder board 61 of seven). The second top plate 6 can lift the second top plate 6 in a well-balanced manner by gripping the center ladder plate 61 among the odd number of ladder plates 61. The second top plate 6 is provided on the lower surface of the forceps plate 61 with a second top plate leg 62 which contacts the second sliding contact portions 32 and 32 of the second frame 3 and a second upper frame of the second frame 3 A second top plate engaging portion (not shown) engaged with the inner end surface of the portion 33 is provided. Movement of the second top plate 6 in the horizontal direction is restricted by the engagement of the second top plate engaging portion with the inner end face of the second frame 3, and horizontal displacement is suppressed. Further, as described in detail later, the second top plate 6 is formed so as to be able to be stored in the internal space S of the first frame 2 (in the illustrated example, with respect to the expansion and contraction direction D) 2 split vertically). However, the second top plate 6 closes the second opening 31 to support at least a part of the user, and forms a substantially flat substantially horizontal surface together with the first top plate 5 and the third top plate 7. If it is configured, it is not limited to the present embodiment, and may be formed, for example, in a foldable manner, or may be formed in a continuous substantially flat plate shape. Moreover, if the 2nd top plate 6 has the intensity | strength which supports at least one part of a user, closing the 2nd opening 31 of the 2nd frame 3, the constituent material will be limited especially. However, any material such as wood, resin, metal can be adopted as the constituent material.

  Further, as shown in FIG. 3, the second frame 3 is provided with second engaging portions 35, 35 engaged with the first frame 2 in order to restrict the pulling out with respect to the first frame 2. There is. The second engagement portions 35 protrude downward in the vertical direction of the second frame 3 and extend along the expansion / contraction direction D, and when the second frame 3 is pulled out, It is configured to abut on the frame 2 (in the present embodiment, the extension side end portion of the first guide portion 22a, 22a). The second frame 3 is a second engagement portion 35 of the second frame 3 at a position where the first opening 21 of the first frame 2 has a size corresponding to the first top plate 5 (see FIG. 1). , 35 abut on the first frame 2 so that the withdrawal is restricted. Therefore, when closing the first opening 21 of the first frame 2 with the first top plate 5, the second frame 3 is positioned at a position where the first opening 21 corresponds to the first top plate 5. It can be easily aligned. Then, the first top plate 5 is supported by the first sliding contact portions 22, 22, and the pushing-in of the second frame 3 is restricted, and the second engagement portions 35, 35 engage with the first frame 2. When the second frame 3 is pulled out with respect to the first frame 2, the withdrawal of the second frame 3 is restricted.

  In the present embodiment, as shown in FIG. 3, the second engaging portions 35, 35 extend downward in the substantially vertical direction with respect to each of the pair of second side walls 33a, 33b of the second frame 3. It is provided as. However, the number, positions, and shapes of the second engaging portions 35, 35 are not particularly limited as long as the second engaging portions 35, 35 can restrict the drawing of the second frame 3 with respect to the first frame 2. For example, the second contraction side wall 33c of the second frame 3 may be used as an engagement portion, and the first frame 2 may be provided with an engaged portion that is engaged with the second contraction side wall 33c. In addition, as long as the second engaging portions 35, 35 have a strength that does not deform when engaged with the first frame 2, the constituent materials thereof are not particularly limited, and metal, wood And any material such as a resin can be adopted as the constituent material.

  As shown in FIGS. 1 and 2, the third frame 4 is configured to be supported on the second frame 3 in a substantially horizontal direction with respect to the second frame 3 so as to be freely pulled out / pushed in. It is done. The telescopic sofa bed 1 is provided with a third top 7 which can be installed on the third frame 4. The third top plate 7 is configured to support the user when the telescopic sofa bed 1 is used as a bed and a sofa. Further, the third top 7 is configured to form a substantially flat substantially horizontal surface together with the first top 5 and the second top 6. In the present embodiment, the third top plate 7 is a tatami mat, and is detachably configured to close the third opening 41 of the third frame 4 that opens upward in the substantially vertical direction. . However, the third top plate 7 may be installed on the upper side of the third frame 4 in the substantially vertical direction, and may be fixed to the third frame 4. In addition, although the third top plate 7 is a tatami mat in this embodiment, when the telescopic sofa bed 1 is used as a bed and a sofa, the third top plate 7 supports the user, and the first top plate 5 and the second top plate If it is possible to form a substantially flat substantially horizontal surface together with 6, it is not limited to the present embodiment, and may be configured the same as the first top plate 5 or the second top plate 6.

  As shown in FIGS. 1 and 3, the third frame 4 includes a third upper frame 43 slidingly in contact with the second sliding contact portions 32 and 32 of the second frame 3 and a third upper frame 43. And a third leg 44 provided at the end of the side (the extension side) which is separated from the second frame 3. The third upper frame 43 extending substantially in the horizontal direction and the third leg 44 extending downward in the substantially vertical direction from the third upper frame 43 are connected to each other in a substantially L shape in a side view. The third upper frame portion 43 is supported by the second sliding portions 32 and 32 and the third leg portion 44 of the second frame 3. In the present embodiment, the third upper frame 43 includes the third opening 41 described above and a plurality of third supports 42 capable of supporting the third top plate 7. The third top plate 7 is placed on the plurality of third support portions 42 to close the third opening 41.

  As shown in FIGS. 1 and 3, the third upper side frame portion 43 of the third frame body 4 includes a pair of third side walls 43 a and 43 b which extend substantially parallel to the expansion and contraction direction D of the expansion and contraction sofa bed 1. A third contraction side wall 43c and a third extension side wall 43d which extend substantially perpendicularly to the expansion and contraction direction D of the expansion and contraction sofa bed 1 are provided. The pair of third side walls 43a and 43b, the third contraction-side side wall 43c, and the third extension-side side wall 43d have substantially the same height from the floor surface, and a third opening 41 opened upward in the substantially vertical direction. Are defined. In addition, the plurality of third support portions 42 are bridged between the third contraction side wall 43 c and the third extension side wall 43 d so as to extend substantially in parallel with the expansion and contraction direction D.

  The third frame 4 is not particularly limited as long as it has a strength capable of supporting the user when the telescopic sofa bed 1 is used as a bed and a sofa, and wood, resin, Any material such as metal can be adopted as the constituent material. The third frame 4 may be the same constituent material as the first frame 2 or the second frame 3, or may be a constituent material different from the first frame 2 or the second frame 3. Good. Further, although the third frame 4 is formed in a substantially L shape in a side view in the present embodiment, the third frame 4 can be pulled out / pushed in the substantially horizontal direction with respect to the second frame 3 in the present embodiment. For example, the angle between the third upper frame 43 and the third leg 44 may be different from 90 °.

  Further, as shown in FIG. 3, the third frame 4 is provided with third engaging portions 45, 45 that engage with the second frame 3 in order to restrict the pulling out with respect to the second frame 3. There is. The third engaging portions 45, 45 are provided so as to extend downward in the substantially vertical direction from the third frame 4 and extend along the expansion / contraction direction D, and when the third frame 4 is pulled out, It is comprised so that it may contact | abut to 2 frame 3 (this embodiment the extending | stretching side edge part of 2nd guide part 32a, 32a). The third frame 4 is the third engaging portion 45 of the third frame 4 at a position where the second opening 31 of the second frame 3 has a size corresponding to the second top plate 6 (see FIG. 1). , 45 abut on the second frame 3 so that the withdrawal is restricted. Therefore, when closing the second opening 31 of the second frame 3 with the second top plate 6, the third frame can be easily located at a position where the second opening 31 has a size corresponding to the second top plate 6. 4 can be aligned. Then, the second top plate 6 is supported by the second sliding contact portions 32, 32, and the pushing-in of the third frame 4 is restricted, and the third engaging portions 45, 45 engage with the second frame 3. When the third frame 4 is pulled out with respect to the second frame 3, the withdrawal of the third frame 4 is restricted.

  In the present embodiment, as shown in FIG. 3, the third engaging portions 45, 45 extend downward in the substantially vertical direction with respect to each of the pair of third side walls 43 a, 43 b of the third frame 4. It is provided as. However, the number, positions, and shapes of the third engaging portions 45, 45 are not particularly limited as long as the third engaging portions 45, 45 can restrict the withdrawal of the third frame 4 with respect to the second frame 3. For example, the third contraction side wall 43c of the third frame 4 may be used as an engagement portion, and the second frame 3 may be provided with an engaged portion that is engaged with the third contraction side wall 43c. In addition, as long as the third engaging portions 45, 45 have a strength that does not deform when engaged with the second frame 3, the constituent material thereof is not particularly limited, and metal, wood And any material such as a resin can be adopted as the constituent material.

  Hereinafter, the entire operation of the telescopic sofa bed 1 will be described with reference to FIGS. 4 and 5 as well. However, the operation described below is merely an example, and the telescopic sofa bed of the present invention is not limited to the following example.

  When the telescopic sofa bed 1 of the present embodiment is used as a bed, as shown in FIG. 1, the second frame 3 is pulled out from the first frame 2 along the substantially horizontal direction, The third frame 4 is pulled out along the substantially horizontal direction from the frame 3 to be in an extended state. And the 1st opening 21 of the 1st frame 2 is closed by the 1st top plate 5, the 2nd opening 31 of the 2nd frame 3 is closed by the 2nd top plate 6, and the 3rd frame The third opening 41 of 4 is closed by the third top plate 7. The telescopic sofa bed 1 can be used as a bed since the first top plate 5, the second top plate 6 and the third top plate 7 form a substantially flat substantially horizontal surface in the extended state. Therefore, the telescopic sofa bed 1 can be used as a comfortable bed. At this time, the first top plate 5 and the second top plate 6 are respectively supported by the first sliding contact portions 22 and 22 of the first frame 2 and the second sliding contacts 32 and 32 of the second frame 3. , The pushing-in of the second frame 3 and the third frame 4 is restricted, and the second engaging portions 35, 35 of the second frame 3 and the third engaging portion 45 of the third frame 4; 45 respectively engage with each of the first frame 2 and the second frame 3 (see FIG. 3), and the withdrawal of each of the second frame 3 and the third frame 4 is restricted. The extension state of the telescopic sofa bed 1 is maintained.

  In the telescopic sofa bed 1, since the first frame 2, the second frame 3 and the third frame 4 have substantially the same width, the first frame 2 and the second frame 3 Between the second frame 3 and the third frame 4 there is no step in the width direction. Therefore, the telescopic sofa bed 1 can reduce the risk of catching a part of the user's body or clothes compared to a conventional bed in which a step in the width direction occurs, and the user can use it safely. it can.

  The telescopic sofa bed 1 can be used as a sofa as shown in FIG. 2 by transitioning from an extended state to a contracted state as shown in FIGS. 4 (a) to 4 (c). In the telescopic sofa bed 1, the first top plate 5 and the second top plate 6 are removed from the first frame 2 and the second frame 3, respectively, before the transition from the stretched state to the contracted state. At this time, since the first top plate 5 and the second top plate 6 are each formed in a ladder shape including odd number of ladder plates 51 and 61, by holding the center ladder plates 51 and 61, the balance is well balanced. It can be lifted, and the first top plate 5 and the second top plate 6 can be easily removed. Further, as shown in FIG. 3, the first frame 2 may be the first opening through the first opening 21 or (in a state where the second frame 3 is pushed into the first frame 2). The first top plate 5 and / or the second top plate 6 is divided or folded so as to be removable through the first opening 21 and the second opening 31. The inner space S is provided. Therefore, both or any of the removed first top plate 5 and second top plate 6 can be stored in the internal space S. Since the first top plate 5 and / or the second top plate 6 can be stored inside the telescopic sofa bed 1, another space for storing the first top plate 5 and / or the second top plate 6 The telescopic sofa bed 1 can be effectively utilized where it is installed.

  The telescopic sofa bed 1 from which the first top plate 5 and the second top plate 6 have been removed is shifted from the stretched state to the contracted state as shown in FIGS. 4 (a) to 4 (c). Here, the telescopic sofa bed 1 is configured such that the second frame 3 is pushed into the first frame 2 in conjunction with an operation of pushing the third frame 4 into the second frame 3. It is done. Therefore, the contraction operation of the extendable sofa bed 1 can be performed only by the operation of pushing the third frame 4 into the second frame 3. More specifically, in the stretchable sofa bed 1 (the state of FIG. 4A) in the extended state, the third frame 4 is moved relative to the second frame 3 (the direction of the arrow in FIG. ), The third leg 44 of the third frame 4 abuts on the second leg 34 of the second frame 3 (see the state of FIG. 4 (b), FIG. 1 and FIG. 3 as appropriate). ). When the pushing operation of the third frame 4 is continued, the second frame 3 interlocks with the pushing operation of the third frame 4 (in the direction of the arrow in FIG. 4B) to the first frame 2. Be pushed in. Finally, in the telescopic sofa bed 1, the second leg 34 of the second frame 3 abuts on the end on the extension side of the first side walls 2a and 2b of the first frame 2 to be in a contracted state (State of FIG. 4 (c)). The telescopic sofa bed 1 is disposed such that the third top 7 forms a substantially flat substantially horizontal surface in a contracted state (the state of FIG. 2), and can be used as a sofa.

  Conversely, the telescopic sofa bed 1 can be used as a bed as described above by being shifted from the contracted state to the extended state as shown in FIGS. 5 (a) to 5 (c). Here, the telescopic sofa bed 1 is configured such that the second frame 3 is pulled out with respect to the first frame 2 in conjunction with the operation of pulling out the third frame 4 with respect to the second frame 3. It is done. Therefore, the extension operation of the extendable sofa bed 1 can be performed only by the operation of pulling out the third frame 4 with respect to the second frame 3. More specifically, in the telescopic sofa bed 1 in the contracted state (the state of FIG. 5 (a)), the third frame 4 with respect to the second frame 3 (the direction of the arrow in FIG. 5 (a) 3), the third engaging portions 45 of the third frame 4 abut on the second frame 3 (the extension side end of the second guiding portions 32a 32a) (see also FIG. 3). (Refer to FIG. 5 (b)) to engage with the second frame 3 so as to restrict the withdrawal of the third frame 4 with respect to the second frame 3). When the pulling out operation of the third frame 4 is continued, the second frame 3 interlocks with the pulling out operation of the third frame 4 to move from the first frame 2 (in the direction of the arrow in FIG. 5B). Pulled out. Finally, in the telescopic sofa bed 1, the second engagement portions 35 of the second frame 3 abut on the first frame 2 (the extension side end of the first guide portions 22 a, 22 a). (See also FIG. 3), by engaging with the first frame 2 so as to restrict the pulling out of the second frame 3 with respect to the first frame 2, the state of FIG. ).

  As described above, the telescopic sofa bed 1 can perform the telescopic operation only by the operation of pulling out / pushing the third frame 4 to the second frame 3. Therefore, the user can easily extend and retract the extendable sofa bed 1. For example, in a situation where multiple telescopic sofa beds 1 are placed in multiple rooms, such as in an inn, the inn employee needs to perform telescopic operation for all of the multiple telescopic sofa beds 1, but Since the expansion and contraction operation can be easily performed, the working time can be significantly reduced.

  The telescopic sofa bed of the present invention has been described above by exemplifying the telescopic sofa bed 1 including the three frames (the first frame 2, the second frame 3 and the third frame 4). However, the telescopic sofa bed of the present invention is not limited to three frames, and may have four frames or may have five or more frames. For example, the extendable sofa bed 1 may further include a fourth frame (not shown) configured to be freely pulled out / inserted along the substantially horizontal direction with respect to the third frame 4. In that case, the third frame 4 has a width substantially the same as that of the fourth frame, and is configured to support the fourth frame so as to be freely extractable / pushable on the third frame 4 . The third frame 4 has a third opening 41 opened upward in the substantially vertical direction, and the third top plate 7 closes the third opening 41 in the extended state of the extendable sofa bed 1 To be removable. The telescopic sofa bed 1 further includes a fourth top plate (not shown) which can be installed on the fourth frame in the contracted state and the extended state, and the telescopic sofa bed 1 is in the extended state. The first top plate 5, the second top plate 6, the third top plate 7 and the fourth top plate are disposed so as to form a substantially flat substantially horizontal surface, which can be used as a bed, and in the contracted state, the fourth sky The plate is arranged to form a substantially flat substantially horizontal surface and can be used as a sofa. The telescopic sofa bed 1 can realize a shorter contraction state than the three frames by providing the four frames, and a user with a short height can also be comfortably used.

DESCRIPTION OF SYMBOLS 1 Telescopic sofa bed 2 1st frame 2a, 2b 1st side wall 2c 1st contraction side wall 2d 1st extension side wall 21 1st opening 22 1st sliding contact portion 22a 1st guide portion 23 Support wall 3 2nd Frame 31 second opening 32 second sliding contact 32a second guide 33 second upper frame 33a, 33b second side wall 33 c second contraction side wall 33 d second extension side wall 34 second leg 35 second Engaging portion 4 Third frame body 41 Third opening portion 42 Third support portion 43 Third upper side frame portion 43a, 43b Third side wall 43c Third contraction side wall 43d Third extension side wall 44 Third leg portion 45 Third Engaging portion 5 1st top plate 51 forceps plate 52 1st top plate leg portion 53 1st top plate engaging portion 6 2nd top plate 61 forceps plate 62 2nd top plate leg portion 7 3rd top plate 8 headboard D Stretching direction S Internal space

Claims (7)

The first frame,
A second frame configured to be freely pulled out / inserted along a substantially horizontal direction with respect to the first frame;
And a third frame configured to be freely pulled out / inserted along the substantially horizontal direction with respect to the second frame,
An extendable sofa bed configured to be extensible and retractable by pulling out / pushing in each of the second frame and the third frame to each of the first frame and the second frame. ,
Each of the first frame and the second frame has substantially the same width as each of the second frame and the third frame, and each of the first frame and the second frame Above the second frame and the third frame so as to support the second frame and the third frame so as to be freely extractable / pushable,
Each of the first frame and the second frame has a first opening and a second opening that open upward in the substantially vertical direction,
The telescopic sofa bed is provided with a first top plate and a second removable top plate for closing the first opening of the first frame and the second opening of the second frame in an extended state. Each of the top plates and a third top plate which can be installed on the third frame;
The telescopic sofa bed is
In the extended state, the first top plate, the second top plate, and the third top plate are disposed so as to form a substantially flat substantially horizontal surface, and can be used as a bed;
A telescopic sofa bed characterized in that the third top plate is disposed so as to form a substantially flat substantially horizontal surface in a contracted state, and can be used as a sofa. The telescopic sofa bed is configured such that the second frame is pulled out / pushed in with respect to the first frame in conjunction with the operation of pulling out / pushing in the third frame with respect to the second frame. Configured and
The telescopic sofa bed according to claim 1, wherein the telescopic sofa bed can be extended and contracted only by the operation of pulling out / pushing the third frame to the second frame. The first frame includes a first sliding portion in sliding contact with the second frame along a substantially horizontal direction, and the first sliding portion is configured to pull out the second frame. Configured to support the first top plate,
The second frame includes a second sliding contact portion in sliding contact with the third frame along a substantially horizontal direction, and the second sliding contact portion is configured to pull the third frame. Configured to support a second top plate,
Each of the second frame and the third frame is supported by the first top plate and the second top plate being respectively supported by the first sliding contact portion and the second sliding contact portion. The telescopic sofa bed according to claim 1 or 2, wherein pushing-in is restricted. The second frame and the third frame are engaged with the first frame and the second frame, respectively, in order to restrict the withdrawal of the first frame and the second frame. Each of the second engaging portion and the third engaging portion
The first top plate and the second top plate are respectively supported by the first sliding contact portion and the second sliding contact portion, and each of the second frame and the third frame is pushed. Regulated,
The second engagement portion and the third engagement portion are respectively engaged with the first frame and the second frame, and the drawers of the second frame and the third frame are extracted. Is regulated,
4. The telescopic sofa bed according to claim 3, wherein the telescopic sofa bed is maintained in an extended state. The first top plate and / or the second top plate so that the first frame can be taken out through the first opening or through the first opening and the second opening. The telescopic sofa bed according to any one of claims 1 to 4, characterized in that it comprises an internal space that can be divided or folded. The telescopic sofa bed according to any one of claims 1 to 5, wherein the first top plate and / or the second top plate is formed in a ladder shape including an odd number of ladder plates. The telescopic sofa bed further includes a fourth frame configured to be freely pulled out / inserted along a substantially horizontal direction with respect to the third frame;
The third frame has a width substantially the same as that of the fourth frame, and is configured to support the fourth frame so as to be freely extractable / pushable on the third frame.
The third frame has a third opening that opens upward in the substantially vertical direction,
The third top plate is detachably configured to close the third opening in an extended state of the telescopic sofa bed;
The telescopic sofa bed further includes a fourth top plate which can be placed on the fourth frame in a contracted state and an extended state,
The telescopic sofa bed is
In the extended state, the first top plate, the second top plate, the third top plate, and the fourth top plate are arranged to form a substantially flat substantially horizontal surface, and can be used as a bed;
The stretchable type according to any one of claims 1 to 6, wherein the fourth top plate is disposed so as to form a substantially flat substantially horizontal surface in a contracted state, and can be used as a sofa. Sofa bed.

Images