Extendable bed

Abstract

To provide an expandable bed that can be easily and conveniently stored and expanded within the vehicle's interior space. [Solution] An expandable bed comprising a bed body portion 10 installed on the front side F of a vehicle, and an expandable bed portion 20 that unfolds on the rear side R of the bed body portion, wherein the expandable bed portion 20 comprises an expandable bed body portion 21 positioned at an expanded position E, and a link mechanism 30 that moves the expandable bed body portion between the expanded position E and a storage position S, wherein the link mechanism 30 causes the expandable bed body portion 21 to stand upright at the storage position S.

Description

Technical Field

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[0001] The present invention relates to an expandable bed that can be easily expanded and stored inside a vehicle.

Background Art

[0002] As is well known, for example, vehicles such as camper vans have limited living space. Therefore, for relatively large equipment such as beds, it is desirable to effectively utilize the limited space by expanding and storing them.

[0003] Therefore, various technologies have been developed to secure a comfortable resting and sleeping space in a narrow vehicle interior by assembling a bed without being limited to a camper van (see, for example, Patent Documents 1, 2, and 3).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

[0005] However, for example, the bed described in Patent Document 1 needs to deploy the bed body in the vehicle front-rear direction and place a mat on the bed body. It is not easy to install a mat in a narrow vehicle interior.

[0006] On the other hand, the bed described in Patent Document 2 has a structure in which a cushion body provided on the center console is deployed in the vehicle width direction to assemble the bed. Therefore, it is difficult to secure a sufficient width due to limitations in the width of the center console and the dimension in the depth direction (vehicle front-rear direction) of the seat, and it is hard to say that a suitable environment for sleeping can be secured.

[0007] Furthermore, the bed described in Patent Document 3 has a problem in that its width is restricted by the ceiling height and the forward tilt position of the seat, making it difficult to secure enough width for resting, and if the width is made too wide, there is no space to store the bed, making it impossible to store it in a stable working posture.

[0008] Therefore, there is a need for an expandable bed that can be easily expanded and stored in the interior space of vehicles such as campervans, allowing for efficient use of the interior space. [Overview of the project] [Problems that the invention aims to solve]

[0009] This invention was devised to address the above-mentioned conventional problems, and aims to provide an expandable bed that can be easily expanded and stored in the limited interior space of a vehicle, such as a campervan, and that allows for efficient use of the interior space. [Means for solving the problem]

[0010] The present invention An extendable bed installed on the bed mounting surface in the interior space of a vehicle, The bed unit is installed on one side in the front-to-rear direction of the vehicle, The bed comprises a deployable bed section that unfolds to the other side of the bed body in the vehicle's front-rear direction, The aforementioned unfolding bed section is A deployable bed body is positioned at a deployment position set on the other side of the aforementioned bed body, A link mechanism for moving the unfolding bed body between the unfolded position and the storage position set on the bed body, Equipped with, The aforementioned link mechanism is The main body of the unfolding bed is positioned substantially horizontally in the unfolded position and erected vertically in the stored position. It is characterized by the following: or The aforementioned link mechanism is It comprises a pair of first support members and a pair of second support members, each positioned on the left and right sides in the vehicle width direction. The first support member has its base end connected to the bed mounting surface via a first base end connecting portion, and its tip end connected to one side of the deployable bed body in the vehicle's longitudinal direction at the deployed position via a first tip connecting portion, and is rotatable around a first base end axis that connects the pair of first base end connecting portions in the vehicle's width direction. The second support member is connected at its base end to the bed mounting surface on the other side in the vehicle longitudinal direction from the first base end connecting portion via a second base end connecting portion, and at its tip end to the rear side in the vehicle longitudinal direction at the deployed position of the deployable bed body via a second tip connecting portion, and is rotatable around a second base end axis that connects the pair of second base end connecting portions in the vehicle width direction. The unfolding bed body is rotatable around a first and second end axis that connects a pair of first end connecting parts and a pair of second end connecting parts in the vehicle width direction. The first base end connecting portion and the second base end connecting portion, and the first tip connecting portion and the second tip connecting portion are each held at a predetermined interval. It is characterized by the following: or The unfolding bed section is provided with an expanding section located in at least one direction in the vehicle width direction, which expands the length of the unfolding bed main body in the vehicle width direction. It is characterized by the following: or The bed mounting surface is set on the upper surface of the upper wall of the cabin, and a recess is formed in the upper wall from the rear end toward the front of the vehicle. The main body of the unfolding bed is configured to unfold to a position corresponding to the recess. It is characterized by the following: or The bed body is, The bed body extension member, which is detachable, is provided on the side of the deployed position. It is characterized by the following: [Effects of the Invention]

[0011] According to the expandable bed of the present invention, it can be easily and simply assembled and stored in a limited vehicle interior space, and the vehicle interior space can be efficiently utilized.

Brief Description of the Drawings

[0012] [Figure 1] It is a schematic configuration diagram for explaining an expandable bed according to an embodiment of the present invention, and is a diagram showing a state in which the deployed bed portion is stored. [Figure 2] It is a schematic configuration diagram for explaining an expandable bed according to an embodiment, and is a diagram showing a state in which the deployed bed portion is deployed. [Figure 3] It is a schematic configuration diagram for explaining an expandable bed according to an embodiment, and is a diagram showing a state in which the widening member (widening portion) is arranged. [Figure 4] It is a conceptual diagram for explaining the outline of an expandable bed according to an embodiment, and is a diagram showing a stored state in which the deployed bed main body portion is arranged at the storage position. [Figure 5] It is a conceptual diagram for explaining the outline of an expandable bed according to an embodiment, and is a diagram showing a state in which the deployed bed main body portion is separated from the storage position. [Figure 6] It is a conceptual diagram for explaining the outline of an expandable bed according to an embodiment, and is a diagram showing a state in which the deployed bed main body portion moves from the storage position toward the deployment position. [Figure 7] It is a conceptual diagram for explaining the outline of an expandable bed according to an embodiment, and is a diagram showing a state in which the deployed bed main body portion swings. [Figure 8] It is a conceptual diagram for explaining the outline of an expandable bed according to an embodiment, and is a diagram showing a state in which the front portion at the deployment position after the deployed bed main body portion swings reaches the deployment position. [Figure 9] It is a conceptual diagram for explaining the outline of an expandable bed according to an embodiment, and is a diagram showing a state in which the deployed bed main body portion inclines substantially horizontally at the deployment position. [Figure 10]This is a conceptual diagram illustrating the outline of an expandable bed according to one embodiment, showing the state just before the main body of the expandable bed is positioned approximately horizontally in the expanded position. [Figure 11] This diagram illustrates the schematic configuration of the widening member (widening section) of an expandable bed according to one embodiment. [Modes for carrying out the invention]

[0013] The following describes an embodiment of the (extendable bed) 1 with reference to Figures 1 to 11. First, we will explain the general layout of an extendable bed in a campervan by referring to Figures 1 to 4. Figures 1 to 3 are schematic diagrams illustrating the general configuration of an expandable bed according to one embodiment of the present invention. Figure 1 shows the expandable bed section in a stored state, Figure 2 shows the expandable bed section in an extended state, and Figure 3 shows the widening member (widening section) in place. Figure 4 is a diagram showing the expandable bed in a stored state with the expandable bed main body section in the stored position.

[0014] In the figure, reference numeral 1 denotes an extendable bed, reference numeral 10 denotes the bed body, reference numeral 11 denotes the front member of the bed body, reference numeral 12 denotes the rear member of the bed body (bed body extension), reference numeral 20 denotes the unfolding bed section, reference numeral 21 denotes the unfolding bed body section, reference numeral 24 denotes the widening member (widening section), and reference numeral 100 denotes the camper van (vehicle) 100. Furthermore, reference numeral 110 indicates the cabin (passenger compartment), reference numeral 112 indicates the upper wall section (ceiling wall section), reference numeral 112C indicates the recess, reference numeral 114 indicates the bedroom (sleeping space), reference numeral 116 indicates the rear living space, and reference numeral 118 indicates the partition rib.

[0015] The extendable bed 1 is, as shown in Figures 1 to 3, a bunk bed installed in the interior space of a camper van (vehicle) 100, specifically in the bedroom (sleeping space) 114.

[0016] As shown in Figures 1 to 3, the camper van (vehicle) 100 includes, for example, a cabin (passenger room) 110, an upper wall (ceiling wall) 112 positioned above the cabin (passenger room) 110, a bedroom 114 formed above the upper wall (ceiling wall) 112, and a rear living space 116 formed behind the cabin (passenger room) 110.

[0017] The cabin (passenger compartment) 110 is located at the front of the camper van (vehicle) 100 and has multiple seats where passengers, including the driver, can sit.

[0018] The upper wall section (ceiling wall section) 112 is a wall section that covers the upper part of the cabin (passenger room) 110, and constitutes the ceiling of the cabin (passenger room) 110. A bedroom (sleeping space) 114 is formed above it, and the upper surface is a mounting surface for the extension bed 1. The upper wall section (ceiling wall section) 112 has a recess 112C formed from its rear end toward the front F side of the vehicle, and the recess 112C is configured to enlarge the walk-through (passageway) for moving between the cabin (passenger compartment) 110 and the rear living space 116.

[0019] Bedroom 114 is a space formed above the cabin (passenger compartment) 110, and is the space in which the extendable bed 1 is located. The rear living space 116 is formed behind the cabin (passenger compartment) 110 and allows camp members to spend time conversing, playing, eating, etc. The rear living space 116 is also used as a work platform when extending the extendable bed 1.

[0020] Furthermore, in this embodiment, a partition rib 118 is connected to the inner wall in the intermediate section between the bedroom 114 and the rear living space 116. This partition rib partially separates the bedroom 114 and the rear living space 116, and has an opening that serves as a passageway for moving inward to the bedroom 114. As shown in Figure 3, the rear corresponding portion b of the unfolding bed body 21 is inserted into the partition rib 118. This prevents the unfolding bed body 21 from shifting unintentionally. By providing the partition rib 118, the strength of the wall near the living space of the camper van 100 is reinforced.

[0021] As shown in Figures 1 to 3 and Figures 4 to 11, the expandable bed 1 comprises a bed body portion 10 located on the front side (one side) F in the longitudinal direction of the vehicle, an expandable bed portion 20 that expands the expandable bed 1 by unfolding to an unfolded position E located on the rear side (other side) R of the bed body portion 10, and a widening member (widening portion) 24.

[0022] Furthermore, as shown in Figures 1 to 3, the bed body portion 10 includes, for example, a bed body front member 11 positioned on the front side (one side) F, and a bed body rear member (bed body extension portion) 12 positioned on the rear side (the other side) R of the bed body front member 11.

[0023] In this embodiment, the front member 11 of the bed body is permanently installed on the installation surface of the bedroom 114, and the extension part 12 of the bed body is positioned between the front member 11 of the bed body and the unfolded bed body part 21. Furthermore, the rear member of the bed body (bed body extension) 12 is configured to be detachable from the bed body 10, for example, by being removed upwards.

[0024] The unfoldable bed section 20 includes an unfoldable bed body section 21 that is unfolded (positioned) at an unfoldable position E set on the rear side (other side) R of the bed body section 10, and a link mechanism 30 that supports the weight of the unfoldable bed body section 21 and moves and unfolds between a storage position S and an unfolded position E on the bed body section 10. In the figure, the symbol a indicates the part located on the front side F of the vehicle when the unfoldable bed body 21 is positioned at the unfolded position E (hereinafter referred to as the front side corresponding part), and the symbol b indicates the part located on the rear side R (hereinafter referred to as the rear side corresponding part).

[0025] The unfoldable bed body 21 is formed with dimensions smaller than, for example, the vehicle width dimension of the inner wall of the bedroom 114. Furthermore, the lower surface portion 22 of the unfolding bed body, which is located below the unfolding position E of the unfolding bed body 21, is formed from a highly rigid (strong) material such as plastic (synthetic resin) or wood. As a result, when the unfoldable bed body 21 is unfolded and positioned on the walk-through recess 112C, even if a load (for example, the weight of a person) is applied to the unfoldable bed body 21 without support from below, the occurrence of deflection or deformation of the unfoldable bed body 21 due to the weight is suppressed.

[0026] As shown in Figure 4, the link mechanism 30 includes, for example, a pair of first support members 31 arranged on the left and right sides in the vehicle width direction, flanking the unfolding bed body 21, a first base end connecting portion 32, a first tip connecting portion 33, a second support member 35, a second base end connecting portion 36, and a second tip connecting portion 37.

[0027] The first support member 31 is formed, for example, in the shape of a long, flat plate. Furthermore, the first support member 31 is connected at its base end to a first base end connecting portion 32 located near the bed installation surface, and at its tip end to the unfolding bed body portion 21 via a first tip connecting portion 33. Furthermore, the first support member 31 is rotatable around the first base axis 32J connecting the left and right first base end connecting portions 32, and the first tip axis 33J connecting the left and right first tip connecting portions 33.

[0028] The second support member 35 is formed, for example, in the shape of a long, flat plate. Furthermore, the second support member 35 is connected to a second base end connecting portion 36 located near the bed installation surface and further rear (on the other side) R than the first base end connecting portion 32, and is connected to the unfolding bed body portion 21 via a second tip connecting portion 37 located further rear than the first tip connecting portion 33. Furthermore, the second support member 35 is rotatable around the second base axis 36J connecting the left and right second base end connecting portions 36, and the second tip axis 37J connecting the left and right second tip connecting portions 37.

[0029] The first base end connecting portion 32 and the second base end connecting portion 36 are arranged near the installation surface with a distance set in the rearward direction of the vehicle. Furthermore, the first end connecting portion 33 and the second end connecting portion 37 are connected while maintaining the distance set in the unfolding bed main body portion 21.

[0030] Thus, the link mechanism 30 is configured as a link mechanism in which the first support member 31, the unfolding bed main body 21, and the second support member 35 are links, and the first base end connecting part 32, the first tip connecting part 33, the second base end connecting part 36, and the second tip connecting part 37 are joints (pairs). Furthermore, the space between the first base end connecting part 32 and the second base end connecting part 36 is substantially the same as a link (fixed part).

[0031] With this configuration, the link mechanism 30 moves the unfoldable bed body 21 between the storage position S and the unfolded position E while supporting the vertical load, and in the storage position S, the unfoldable bed body 21 is erected on the bed body 10, and in the unfolded position E, the unfoldable bed body 21 is positioned substantially horizontally.

[0032] Furthermore, a pair of storage-state holding members 38 are connected to the link mechanism 30, for example, via a second base end connecting portion 36, and the storage-state holding members 38 are rotatable around the second base end axis 36J. Furthermore, the storage state holding member 38 has an engaging portion (not shown) formed thereon, which engages with the engaged portion (not shown) formed on the second support member 35, thereby enabling the unfolding bed main body 21 to be held upright in the storage position S.

[0033] The widening members (widening sections) 24 are arranged, for example, on both the left and right sides in the vehicle width direction of the rear bed body member (bed body extension section) 12 and the unfolded bed body section 21 located at the unfolded position E. Furthermore, the widening member (widening section) 24 is rotatable (tiltable) around an axis (not shown) formed in the longitudinal direction of the vehicle and located outward in the vehicle width direction. Before the unfolding bed body 21 is unfolded, it rotates around the axis and stands upright. After the unfolding bed body 21 is unfolded, it rotates in a substantially horizontal direction to cover the link mechanism 30 and to close the gap between the rear bed body member (bed body extension section) 12 and the unfolding bed body 21 and the inner wall. Furthermore, the widening member (widening section) 24 is formed to correspond to the length of the rear bed body member (bed body extension section) 12 and the unfolded bed body section 21 in the vehicle's longitudinal direction.

[0034] Next, with reference to Figures 4 to 11, the operation of extending (unfolding) an extendable bed according to one embodiment will be described. Figures 4 to 11 are conceptual diagrams illustrating the general outline of an expandable bed according to one embodiment. Figure 4 shows the expandable bed body in a stored state, Figure 5 shows the expandable bed body separated from the upper surface of the bed body, Figure 6 shows the expandable bed body moving from the stored position to the expanded position, Figure 7 shows the expandable bed body swinging, Figure 8 shows the expandable bed body swinging with the lower surface portion 22 facing the rear of the vehicle, Figure 9 shows the front corresponding portion of the expandable bed body reaching the expanded position, and Figure 10 shows the expandable bed body being installed in the expanded position. Figure 11 is a diagram illustrating the schematic configuration of the widening member (widening portion) of the expandable bed. In the diagram, the symbol E indicates the deployed position (hatched area), and the symbol S indicates the stored position.

[0035] When the expandable bed 1 is not in use, for example when the camper van (vehicle) 100 is in motion, the unfolded bed section 20 is stored in the storage position S on the bed body section 10, as shown in Figure 4. Specifically, the unfolded bed body section 21 is erected in the storage position S to be in the stored state.

[0036] At this time, in order to maintain the posture (upright position) of the unfolding bed body 21, the engaging portion (not shown) formed on the storage state holding member 38 is engaged with the engaged portion (not shown) formed on the first support member 31 to maintain the upright position. As a result, the main body of the unfoldable bed 21 can be set up stably and will not tip over even when the camper van 100 is in motion. Note that the storage state retaining member 38 shown in Figure 4 is in the released state.

[0037] When extending the extendable bed 1, first the storage state holding member 38 is detached from the first support member 31 to release the engagement and make the link mechanism 30 operational. Then, as shown in Figure 5, the front corresponding part a of the unfolding bed body 21 is drawn in the direction of arrow P (rear side (other side) R), which is shown by hatching.

[0038] When the unfolding bed body 21 is pulled in the direction of arrow P, the first support member 31 and the second support member 35 rotate around the first base axis 32J and the second base axis 36J, respectively, and the unfolding bed body 21 moves away from the storage position S on the bed body 10 and swings in the direction of arrow T.

[0039] Next, when the unfolding bed body 21 is pulled in the direction of arrow P, as shown in Figure 6, the unfolding bed body 21 moves from the storage position S to the unfolded position E and swings, so that the unfolding bed body 21's lower surface 22 faces upward.

[0040] When the unfoldable bed body 21 is moved further upward, as shown in Figure 7, the unfoldable bed body 21 moves from the main bed 10 toward the unfolded position E and swings in the direction of arrow T, causing the unfoldable bed body lower surface 22 to begin facing the rear side (other side) R of the vehicle.

[0041] Subsequently, when the corresponding front position a of the unfolding bed body 21 becomes difficult to pull, the corresponding rear position b of the unfolding bed body 21 is pulled to swing the unfolding bed body 21, as shown in Figure 7. At this time, in order to swing the unfolding bed body 21 smoothly, the rear corresponding part b of the unfolding bed body 21 is pulled while being slightly lifted upward in the direction of arrow P.

[0042] Once the rear corresponding part b of the unfolding bed main body 21 reaches top dead center, as shown in Figure 8, the rear corresponding part b is further pulled toward the rear side R of the vehicle, and the unfolding bed main body 21 is swung to position the rear corresponding part b of the unfolding bed main body 21 upwards and the front corresponding part a downwards, so that the front corresponding part a of the unfolding bed main body 21 reaches the unfolded position E.

[0043] Next, as shown in Figure 9, the rear corresponding part b of the unfolding bed body 21 is pulled toward the rear side (other side) R of the vehicle in the direction of arrow P, thereby tilting the unfolding bed body 21 in the direction of arrow T.

[0044] Next, as shown in Figure 10, the rear corresponding part b of the unfolding bed body 21 is pulled towards the rear side (other side) R of the vehicle, and the unfolding bed body 21 is laid down in the unfolded position E.

[0045] Next, as shown in Figure 11, once the unfolding bed body 21 is positioned at the unfolding position E, the erected widening member (widening section) 24 is tilted in the direction of arrow G, filling the gap formed between the rear bed body member (bed body extension section) 12 and the unfolding bed body 21 and the inner wall surface of the vehicle, and covering the link mechanism 30.

[0046] According to one embodiment of the expandable bed 1, in the limited interior space of a camper van (vehicle) 100, the expandable bed 1 can be extended by simply and easily unfolding the main bed unit 21, thereby efficiently utilizing the interior space.

[0047] Furthermore, the expandable bed 1 is equipped with a link mechanism 30, and the weight of the expandable bed body 21 is supported by the link mechanism 30, so the expandable bed body 21 can be easily and stably expanded or stored.

[0048] Furthermore, with the expandable bed 1, the expandable bed body 21 can be extended simply by pulling it in the general direction of arrow P, so the expandable bed 1 can be easily extended from the rear living space 116.

[0049] Furthermore, when storing the unfoldable bed body 21, simply moving the unfoldable bed body 21 away from the unfolded position E and pushing it toward the front side (one side) F of the vehicle allows the unfoldable bed body 21 to be stored from the unfolded position E to the stored position S. This makes it easy to store the unfoldable bed body 21 from the rear living space 116 without having to assume an unstable posture.

[0050] Furthermore, the expandable bed 1 is equipped with a widening member (widening section) 24, which allows the width dimension of the unfolding bed body 21 to be set smaller, enabling the unfolding bed body 21 and the link mechanism 30 to be smoothly unfolded and stored without contacting the inner wall of the vehicle.

[0051] Furthermore, even if the width dimension of the unfolding bed body 21 is formed to correspond to the inner dimension of the partition rib 118, the width dimension can be expanded by the widening member (widening section) 24, so the inner dimension of the partition rib 118 can be reduced and its strength as a reinforcing rib can be increased.

[0052] Furthermore, the expandable bed 1 is equipped with a link mechanism 30, allowing for easy storage and deployment without worrying about the weight of the unfoldable bed body 21. This makes it possible to form the unfoldable bed body 21 (unfoldable bed body lower surface 22) with a material that has sufficient strength (rigidity) to withstand a person sitting on the unfoldable bed body 21 placed in the recess 112C. As a result, a large walk-through (transportation passage) can be secured between the cabin (passenger compartment) 110 and the rear living space 116.

[0053] It should be noted that the present invention is not limited to the embodiments described above and can be modified in various ways. For example, in the above embodiment, the link mechanism 30 is described as comprising, for example, a first support member 31, a deployable bed body 21, a second support member 35, a first base end connecting portion 32, a first tip connecting portion 33, a second base end connecting portion 36, and a second tip connecting portion 37, with the first base end connecting portion 32 and the second base end connecting portion 36 being formed to a set dimension. However, the configuration of the link mechanism can be set arbitrarily, and it is preferable that it be able to deploy while supporting the weight of the deployable bed body 21.

[0054] In the above embodiment, the bed body portion 10 was described as comprising a bed body front portion 11 and a bed body rear member (bed body extension portion) 12, and the bed body rear member (bed body extension portion) 12 being separable. However, the configuration of the bed body portion 10 can be arbitrarily set. For example, the bed body portion 10 may have an integrated structure without a bed body rear member (bed body extension portion) 12, or it may have a bed body rear member (bed body extension portion) 12 that is separable in part in the thickness direction.

[0055] Furthermore, although the above embodiment described a case in which the extendable bed 1 is placed in a bedroom 114 formed on the cabin 110, the extendable bed 1 may also be placed in the rear living space 116 or other spaces of the camper van 100.

[0056] Furthermore, although the above embodiment described a case in which the expandable bed 1 is equipped with a widening member (widening section) 24, the configuration of the widening member (widening section) 24 may be arbitrarily set. For example, the widening member (widening section) 24 may be fixed, or it may be formed in the unfolding bed body 21. Furthermore, the widening member (widening portion) 12 may be formed on one side in the vehicle width direction, or the vehicle may be configured without a widening member (widening portion) 12. [Explanation of Symbols]

[0057] 1. Extendable bed 10 Bed frame 11. Front component of the bed frame 12 Rear component of the bed frame (extension part of the bed frame) 20. Expandable bed section 21. Unfolding bed frame 22. The bottom of the unfolded bed frame 24 Widening member (widening section) 30 Link mechanism 31 First support member 32 First proximal connection part 32J 1st proximal axis 33 1st tip connection part 33J 1st tip axis 35 Second support member 36 Second proximal connection part 36J 2nd proximal axis 37 2nd tip connection part 37J 2nd tip axis 38 Storage state retention member 100 campervans (vehicles) 110 Cabin (boarding room) 112 Upper wall section (ceiling wall section) 112C recess 114 Bedroom (sleeping space) 116 Rear passenger space 118 Partition Ribs F Front side (one side) R Rear side (other side) E Deployed position S Storage location a. Front side corresponding part b Rear side corresponding section

Claims

1. An extendable bed installed on the bed mounting surface in the interior space of a vehicle, The bed unit is installed on one side in the front-to-rear direction of the vehicle, The bed comprises a deployable bed section that unfolds to the other side of the bed body in the vehicle's front-rear direction, The aforementioned unfolding bed section is A deployable bed body is positioned at a deployment position set on the other side of the aforementioned bed body, A link mechanism for moving the unfolding bed body between the unfolded position and the storage position set on the bed body, Equipped with, The aforementioned link mechanism is The main body of the unfolding bed is positioned substantially horizontally in the unfolded position and erected vertically in the stored position. An expandable bed characterized by the following features.

2. The aforementioned link mechanism is It comprises a pair of first support members and a pair of second support members, each positioned on the left and right sides in the vehicle width direction. The first support member has its base end connected to the bed mounting surface via a first base end connecting portion, and its tip end connected to one side of the unfolding bed body in the vehicle's longitudinal direction at the unfolded position via a first tip connecting portion, and is rotatable around a first base end axis that connects the pair of first base end connecting portions in the vehicle's width direction. The second support member is connected at its base end to the bed mounting surface on the other side in the vehicle longitudinal direction from the first base end connecting portion via a second base end connecting portion, and at its tip end to the rear side in the vehicle longitudinal direction at the deployed position of the deployable bed body via a second tip connecting portion, and is rotatable around a second base end axis that connects the pair of second base end connecting portions in the vehicle width direction. The unfolding bed body is rotatable around a first and second end axis that connects the pair of first and second end connecting parts in the vehicle width direction. The first base end connecting portion and the second base end connecting portion, and the first tip connecting portion and the second tip connecting portion are each held at a predetermined interval. The expandable bed according to feature 1.

3. The unfolding bed section is provided with an expanding section located in at least one direction in the vehicle width direction, which expands the length of the unfolding bed main body in the vehicle width direction. An expandable bed as described in claim 1 or 2.

4. The bed mounting surface is set on the upper surface of the upper wall of the cabin, and a recess is formed in the upper wall from the rear end toward the front of the vehicle. The main body of the unfolding bed is configured to unfold to a position corresponding to the recess. An expandable bed as described in claim 1 or 2.

5. The bed body is, The bed body extension member, which is detachable, is provided on the side of the deployed position. An expandable bed as described in claim 1 or 2.

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