JP2017169866A - Sofa bed - Google Patents

Abstract

[Problem] To provide a sofa bed that can be transformed between a configuration in which the movable base and fixed base are nested and a configuration in which the movable base is pulled out from the fixed base, preventing or suppressing the appearance of the movable base's movement trajectory relative to the fixed base and ground marks on the floor. [Solution] A slide mechanism 5 that slides the movable base 2 relative to the fixed base 1 is provided with a slide rail that extends along the movement direction D of the movable base 2 and a slider that is engaged with the slide rail and can slide along the slide rail, and is configured so that the slide rail is attached to the floor surface F and the slider is fixed to the movable base 2, and the entire movable base 2 is supported in a state where it is raised above the floor surface F by the engagement portion between the slide rail and the slider. [Selected Figure] Figure 1

Description

  The present invention relates to a sofa bed that can be deformed between a sofa form that can be used as a sofa and a bed form that can be used as a bed.

  Conventionally, as a sofa bed that can be deformed between a sofa form that can be used as a sofa and a bed form that can be used as a bed, the outer case and the inner case are stored so as to be nested, and the outside By pulling the inner case forward with respect to the case, the sofa shape is transformed into a bed shape, and the inner case pulled from the outer case is pushed back into the outer case and stored, so that the bed shape is changed to the sofa shape. Those configured to be deformed are known. Such a sofa bed is required to have a high load-bearing performance that can withstand actual use such as a user sitting down or sleeping in both the sofa form and the bed form.

  Therefore, it is assumed that the conventional sofa bed moves when the sofa form is changed to the bed form or when the bed form is changed to the sofa form (hereinafter collectively referred to as “form deformation”). A non-external outer case is installed directly on the floor surface, and a floor grounding portion is secured at least at the end in the pull-out direction side of the inner case that is assumed to move during deformation. As the floor grounding part of the inner case, it can roll on a plate-like member (footboard) placed in an upright position at the end of the inner case in the drawer direction side, a dedicated leg, or on the floor surface (For example, refer to Patent Documents 1 and 2 below).

JP 10-43006 A (Patent No. 2881600) Microfilm of Japanese Utility Model No. 58-161829 (Japanese Utility Model Application No. 60-69063)

  However, when applying the above-mentioned floor surface grounding portion as the inner case, if the inner case is moved during shape deformation, the floor surface grounding portion will also move while in contact with the floor surface. The movement trajectory of the floor grounding portion appears as a scratch or a dent, and the movement trajectory of the floor grounding portion tends to appear as a clear scratch or dent as the shape deformation is repeated. In addition, when using in the bed form, the floor grounding part receives the load of the inner case itself and the weight of the user at the floor grounding part. A trace of grounding (grounding trace) remains.

  Such movement trajectory and grounding trace of the floor grounding part is not visible or difficult to see if the sofa bed is in the bed form, while when the sofa bed is in the sofa form It is easy to see and detracts from the beauty of the floor where the sofa bed is installed.

  In particular, for example, if a sofa bed is installed and used on a carpet with a carpet on the floor, the movement trajectory and ground traces of the floor ground will appear on the carpet, and the aesthetics of the carpet will be significantly impaired. .

  However, in order to ensure high load resistance to withstand actual use in a sofa bed that adopts a so-called nesting type structure that allows the inner case to be inserted and removed with respect to the outer case, as the inner case, It was thought that it was an indispensable condition to apply a thing provided with the floor grounding part supported in the state where it was in direct contact with the floor, and it was thought that the above-mentioned fault must be accepted. .

  The present invention has been made paying attention to such points, and the main purpose thereof is a sofa form in which a movable base and a fixed base are nested, and a bed form in which the movable base is pulled out from the fixed base. An object of the present invention is to provide a sofa bed that can be deformed between and can prevent or suppress the movement trajectory of the movable base relative to the fixed base and the ground trace of the movable base from appearing on the floor surface.

  That is, the present invention includes a fixed base fixed to a floor surface and a movable base movable with respect to the fixed base, a sofa form in which the fixed base and the movable base are nested, and a movable base in the form of a sofa. More particularly, the present invention relates to a sofa bed that can be deformed between a bed form moved in a predetermined direction with respect to a fixed base. Here, the fixed base and the movable base in the present invention are set to appropriate sizes that can be nested in each other.

  The sofa bed according to the present invention slides along the slide rail provided on the floor and extending along the moving direction of the movable table, and being fixed to the movable table and engaged with the slide rail. A slide mechanism configured using a movable slider is provided, and the entire movable table is supported by the slide rail and the engaging portion of the slider so as to float from the floor surface.

  In the case of such a sofa bed according to the present invention, a sofa form can be obtained by using a slide mechanism capable of sliding the slider fixed to the movable base along the extending direction of the slide rail provided on the floor surface. The movable table in the bed can be changed from the sofa shape to the bed shape by moving the movable table in the predetermined direction with respect to the fixed table. By moving in the opposite direction to the deformation to the form, the bed form can be changed to the sofa form. The sofa bed according to the present invention employs a configuration in which the entire movable table is supported by a portion in which a slide rail provided on the floor surface and a slider fixed to the movable table are engaged with each other. The load of the movable table itself and the load acting on the movable table with use can be received on the floor surface through the engaging portions of the slider and the slide rail.

  Here, as a comparative example for the sofa bed according to the present invention, for example, a slide mechanism is provided between the movable table and the fixed table to enable the movable table to be taken in and out of the fixed table, and the sofa is used by using this slide mechanism. It is configured so that it can be deformed from the form to the bed form and vice versa, and is further configured to support the entire movable table that is not provided with the above-mentioned floor grounding part with the parts that constitute the slide mechanism. Assuming such a mode, in the case of the comparative example, the load on the movable base itself and the load acting on the movable base that changes with use constitute the components constituting the slide mechanism and these slide mechanisms. It will be received on the fixed base through the parts.

  In addition, as a slide mechanism provided between the movable table and the fixed table, a groove extending in the moving direction of the movable table is formed on the side plate of either the movable table or the fixed table (for example, the fixed table), and the other A slide in which a protrusion that can be engaged with the groove is provided on the side plate of the base (for example, the movable base), and the movable base is slidable with respect to the fixed base while maintaining the uneven engagement between the groove and the protrusion. A rail that extends in the moving direction of the movable table is formed on the side plate of the mechanism, either the movable table or the fixed table (for example, the fixed table), and the rail is connected to the side plate of the other table (for example, the movable table). A slide mechanism that is configured so that the movable base can be slid relative to the fixed base while maintaining the engagement state between the rail and the slider, or the outer rail and the outer rail and the outer rail are slidably fitted. Middle race combined And an inner rail slidably engaged with the intermediate rail, the outer rail is fixed to the side plate of either the movable base or the fixed base (for example, the fixed base), and the other base (for example, the movable base) ) And a slide mechanism including a suspension rail having an inner rail fixed to the side plate. In any of these slide mechanisms, the parts and parts constituting the slide mechanism (hereinafter collectively referred to as “slide mechanism constituent parts”) are a movable base and a fixed base (in the above example, the side plate of the movable base). It is common in that it is formed on or provided on the side plate of the fixed base.

  Therefore, in such a comparative example, the load of the movable table itself and the load acting on the movable table with use are applied to the fixed table via the engagement parts between the slide mechanism components and the engagement parts. In addition to the load acting on the fixed base as it is used, a load acting on the movable base is also applied to the fixed base. As a result, in the sofa form and bed form, there is a possibility that excessive load may be concentrated on the fixed base, and it is expected that sufficient load resistance that can withstand actual use cannot be secured or it is difficult to secure. Is done. Therefore, in the configuration as in the comparative example, in order to ensure the load resistance that can withstand actual use, it is necessary to employ a movable base provided with a floor grounding portion. Will appear on the floor.

  On the other hand, according to the sofa bed of the present invention, the slide rail constituting the slide mechanism is provided on the floor surface, and the entire movable base is floated from the floor surface by the engaging portion of the slide rail and the slider fixed to the movable base. The load is applied to the movable table itself, and the load acting on the movable table with use is received by the floor surface through the engagement part between the slide rail and the slider. Therefore, it is possible to avoid the situation where the load of the movable table itself or the load acting on the movable table with the use acts as a load on the fixed table, ensuring high load resistance that can withstand actual use. It is.

  In addition, according to the sofa bed according to the present invention, when the sofa form is transformed into the bed form, or when the bed form is transformed into the sofa form (when the form is deformed), the situation where the movable table comes into contact with the floor surface is prevented. It is possible to avoid this, and it is possible to eliminate the problem that the movement trajectory of the movable platform appears on the floor surface. Further, according to the sofa bed according to the present invention, since the entire movable base is supported in a state of being floated from the floor surface by the engagement portion between the slide rail and the slider constituting the slide mechanism, the bed form Sometimes, it is possible to avoid a situation where the movable table comes into contact with the floor surface, and it is possible to eliminate the problem that the ground trace of the movable table appears on the floor surface.

  Here, if the floor surface on which the sofa bed according to the present invention is installed is a floor surface on which carpets or other rugs are not laid, the entire movable table can be removed from the floor surface by the engagement portion of the slide rail and the slider of the present invention. The “floor surface” in the configuration of “support in a floating state” is the floor surface itself. On the other hand, if a carpet or other rug is laid on the floor surface on which the sofa bed according to the present invention is installed, the carpet or other rug will be Corresponds to the “floor surface” in the configuration of “supporting in a state where the surface is floated from the floor surface”.

  In the sofa bed according to the present invention, it is also possible to set the inner case disposed relatively inside in the sofa form as a movable base, and set the outer case disposed outside the inner case in the sofa form as a fixed base. However, as a novel design concept that has not been conceived so far, the inner case that is relatively arranged in the sofa form is set as a fixed base, and is arranged outside the inner case in the sofa form. It is also possible to adopt a configuration in which the outer case is set as a movable base.

  In the sofa bed according to the present invention, in the form of a sofa in which the fixed base and the movable base are nested, the entire one base (for example, the fixed base) is covered with the other base (for example, the movable base) in plan view. It may be configured as described above, or may be configured such that only a predetermined part of one base is covered with the other base in a plan view in the form of a sofa. In other words, the sofa bed according to the present invention is configured such that, when the sofa is configured, the inner case disposed relatively inside is covered entirely or substantially entirely by the outer case disposed relatively outside. In the sofa form, the inner case may be configured to be classified into a portion covered by the outer case and a portion not covered. If the former configuration (in which the inner case is entirely or substantially entirely covered by the outer case when the sofa is configured), when only focusing on the relationship between the inner case and the outer case in the sofa configuration, only the upward surface of the outer case is It becomes a seating surface at the time of sofa form. Also, in the latter configuration (a configuration in which the inner case is distinguished from a portion covered by the outer case and a portion not covered when the sofa is configured), when focusing only on the relationship between the inner case and the outer case in the sofa configuration, The upward surface of the case and the upward surface of the inner case that is not covered by the outer case serve as a seat surface in the sofa form.

  In the sofa bed according to the present invention, as the size relationship between the movable table and the fixed table along the moving direction of the movable table, the movable table is set larger than the fixed table, or the fixed table is larger than the movable table. The set configuration and any of these configurations can be employed. In particular, in a configuration in which the dimension of the movable table along the moving direction of the movable table is set to be larger than the dimension of the fixed table along the moving direction of the movable table, the outside is disposed relatively outside when the sofa is formed. When the case is set as a movable base, the inner space of the outer case is partitioned along the moving direction into a main space that can accommodate the movable base in the sofa form and a sub space that does not contain the fixed base in the sofa form. In addition, it is possible to adopt a configuration in which the sub space is set as an article accommodation space that can accommodate articles other than the fixed base. That is, the outer case arranged relatively outside in the sofa form functions as a space for accommodating the inner case arranged relatively inside in the sofa form. If it is set as a movable base and the dimension along the moving direction of the outer case is set larger than the dimension of the inner case (fixed base) along the same direction, the inner case is accommodated in the inner space of the outer case. A sub-space other than the main space that functions as a space to be used can be secured, and the sub-space can be utilized as a space that can accommodate articles such as bedding.

  Moreover, in the sofa bed according to the present invention, the internal space of the inner case can be set as an article accommodation space that can accommodate articles such as bedding. In this case, if the inner space of the outer case is divided into a main space and a sub space, and the sub space is set as an article storage space, the inner space of the inner case and the inner space of the outer case are effectively utilized. It is possible to increase the space for storing articles such as these.

  In addition, in the sofa bed according to the present invention, a movable base having a pair of left and right side plates that define the side surface of the movable base is applied, and a pair of left and right side plates face each other as a slider constituting the slide mechanism. It is possible to adopt a configuration in which a slide rail that is arranged in a region partitioned by the pair of left and right side plates in the width direction and that constitutes a slide mechanism together with the slider is arranged in a predetermined region on the floor according to the location of the slider.

  In such a configuration, the slider is arranged in the region in the center of the movable table in the width direction relative to the side plate of the movable table, so that the slider is arranged outside the side surface of the movable table in the width direction. Thus, the slider cannot be visually recognized from the outside or is difficult to visually recognize. In addition, the slide rail arranged in the predetermined area on the floor according to the arrangement position of the slider is also arranged in the area in the center side in the width direction of the movable table with respect to the side plate of the movable table. In comparison with the configuration in which the slide rail is disposed outside the side surface of the movable table, the slide rail cannot be visually recognized from the outside or is difficult to visually recognize. As a result, the entire slide mechanism is disposed in a region on the center side in the width direction of the movable table with respect to the side plate of the movable table at least in a plan view. Compared with the structure arrange | positioned in the area | region of the width direction outer side, the design property of the whole sofa bed improves markedly.

  Further, the sofa bed of the present invention is designed to improve the design by arranging the slide rail at a position covered only by the fixed base in the sofa form, or a position covered by both the fixed base and the movable base, Compared with a configuration in which the slide rail is exposed to the outside in the sofa form, it is possible to avoid a situation where a user's foot or the like is caught on the slide rail, and it is possible to improve safety.

  Furthermore, in the sofa bed of the present invention, in order to eliminate the situation where air is trapped in the internal space of the movable table and the fixed table and to ensure good air permeability, all of the top plate of the fixed table and the movable table or It is also possible to configure a part of the kite-like unit top plate. The kite-like unit top plate may be detachable with respect to the entire unit, or may be detachable. The number of unit top plates is not limited. For example, as the fixed base or the movable base, one having one unit top plate or each having a plurality of unit top plates is applied. Alternatively, one of the fixed base and the movable base may be provided with one unit top plate, and the other base may be provided with a plurality of unit top plates.

  Further, in order to form a seat surface and a backrest surface with excellent cushioning properties in the sofa form, a mattress that forms the seat face in the sofa form and a backrest mat that forms the backrest face in the sofa form are provided. A sofa bed is preferred. In this case, the mattress forms the first bed surface in the bed form, and the backrest mat is substantially flush with the first bed surface in a state where the backrest mat is arranged along the mattress along the moving direction of the movable table. If it is configured to form two bed surfaces, it is possible to form a bed surface having excellent cushioning properties by using a mattress and a backrest mat used in the sofa form also in the bed form. Furthermore, a difference is provided in the thickness dimension of the mattress and the backrest mat in the bed form (a dimension along the height direction in the bed form), and the upward surface of the fixed base and the upward surface of the movable base in the bed form are determined by this thickness dimension difference. If the structure is formed so as to fill the step, the step between the upward surface of the fixed base and the upward surface of the movable base that always appear in the bed form is eliminated without using a dedicated step cancellation member, and the first bed surface and A flat bed surface can be formed by the second bed surface.

  The sofa bed according to the present invention is provided on the floor as a slide mechanism that moves the movable base whose position relative to the fixed base changes between the sofa form and the bed form in a predetermined direction when the form is deformed, and the moving direction of the movable base Applied to a slide rail that extends along the slide rail and a slider that is fixed to the movable base and that is slidable along the slide rail while being engaged with the slide rail. Since the entire movable base is supported by the engaging part in a state where it is floated from the floor surface (if the floor is covered with carpet or other rug), the load of the movable base itself and the use As a result, it is possible to avoid a situation in which the load acting on the movable table acts as a load on the fixed table, and to ensure high load resistance that can withstand actual use. Together, it can be and movement trajectory of the movable base with respect to the fixed base, the ground traces of the movable platform is to provide a sofa bed which can prevent and suppress the occurrence to the floor.

The sectional side view which shows typically the sofa bed at the time of the sofa form which concerns on one Embodiment of this invention. The sectional side view which shows typically the sofa bed at the time of the bed form in the embodiment. The figure equivalent to the xx line cross section of FIG. FIG. 3 is a view corresponding to a cross section taken along line yy of FIG. 2. The top view of the outer case at the time of the sofa form in the embodiment. The top view of the inner case at the time of the bed form in the embodiment. The figure which extracts and shows an outer case and a slide mechanism from FIG. The figure which extracts and shows a slide mechanism and its peripheral part from the top view of the sofa bed at the time of the sofa form in the embodiment. The figure which shows the sofa bed at the time of the bed form in the embodiment corresponding to FIG. The layout figure at the time of arrange | positioning the sofa bed which concerns on the embodiment to a rail vehicle. The top view which shows typically the form deformation | transformation of the sofa bed which concerns on the same embodiment. The figure which shows the modification of the sofa bed which concerns on the embodiment corresponding to FIG. The figure which shows the modification of the sofa bed which concerns on the embodiment corresponding to FIG. The figure which shows the modification of the sofa bed which concerns on the embodiment corresponding to FIG. The figure which shows the modification of the sofa bed which concerns on the embodiment corresponding to FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the sofa bed X according to the present embodiment includes a sofa form (a) in which a fixed base 1 and a movable base 2 are stored in a nested manner, and a movable base 2 as a sofa form as shown in FIG. 2. (A) It is possible to be deformed between the bed configuration (b) moved by a predetermined distance in a predetermined direction (in the illustrated example, the direction of arrow A) with respect to the fixed base 1 than at the time of (a). . In the following description, the direction in which the movable base 2 is moved with respect to the fixed base 1 rather than the sofa form (a) is referred to as “front (direction of arrow A in FIGS. 1 and 2)”, and the sofa is started from the bed form (b). When the moving direction of the movable base 2 when changing into the form (a) is “rear (arrow B direction in FIGS. 1 and 2)”, when changing from the sofa form (a) to the bed form (b), the bed Direction in which the movable base 2 moves with respect to the fixed base 1 when deformed from the form (b) to the sofa form (a) (hereinafter collectively referred to as “form deformation”) (in the direction of arrow D in FIGS. 1 and 2) ) Is a “width direction W” (see FIG. 3).

  In the sofa bed X of the present embodiment, the inner case 3 disposed relatively inside in the sofa form (a) is set as the fixed base 1, and the outer case arranged outside the inner case 3 in the sofa form (a). The case 4 is set as the movable base 2. The sofa bed X of the present embodiment pulls out the outer case 4 by a predetermined distance forward from the position (accommodating position (c)) shown in FIG. 1 where the inner case 3 can be accommodated in the internal space. Further, it is configured to be slidable between the position shown in FIG. 2 (drawing position (d)). And the sofa bed X of this embodiment becomes the sofa form (a) which can be used as a sofa by positioning the outer case 4 in the accommodation position (c), and positions the outer case 4 in the drawer position (d). Thus, the bed form (b) can be used as a bed.

  In this embodiment, the dimension (front-rear dimension, depth dimension) along the front-rear direction D of the outer case 4 is set larger than the front-rear dimension (depth dimension) of the inner case 3. In the sofa bed X of this embodiment, the state in which the rear end 4b of the outer case 4 matches or substantially matches the rear end 3b of the inner case 3 is the sofa form (a), and the rear end 4b of the outer case 4 is the inner case. 3 is a sofa shape (a) in which the front end 3a matches or substantially matches the front end 3a. Therefore, in the sofa form (a), the entire inner case 3 or substantially the entire outer case 4 is covered, and the upper surface of the inner case 3 is not exposed to the outside. In this embodiment, in the sofa form (a), the mattress M1 set to the same or substantially the same plane size as the outer case 4 is placed on the upward surface of the outer case 4 to provide cushioning properties. A seating surface is formed.

  Furthermore, the sofa bed X of the present embodiment is a predetermined area on the backrest side of the upward surface of the mattress M1 in the sofa form (a) (in the present embodiment, a predetermined area on the rear end side of the mattress M1). A backrest surface having a cushioning property is formed by mounting the backrest mat M2. The backrest mat M2 has a form in which, for example, an inclined surface inclined by a predetermined angle with respect to the vertical direction appears in a state where two backrest mat blocks M21 are folded in two stages. Specifically, by folding the two backrest mat blocks M21 that form a continuous flat upward surface when deployed, the two backrest mat blocks M21 are folded in two stages around a boundary portion partitioned by an inclined surface of a predetermined angle, A backrest mat M2 capable of forming an inclined backrest surface that is continuous in the height direction is applied (see FIG. 1).

  In the unfolded state (see FIG. 2), the plane size of the backrest mat M2 is the same as the plane size of the inner case 3 in an unfolded state where the upward surfaces of the two backrest mat blocks M21 are continuous with each other to form a flat surface. Identical or substantially identical. In the backrest mat M2 applied in the present embodiment, the thickness dimension of each of the two backrest mat blocks M21 is set larger than the thickness dimension of the mattress M1. Specifically, the thickness of each of the two backrest mat blocks M21 is set to the mattress M1 by the same or substantially the same dimension difference in the height direction between the upward surface of the outer case 4 and the upward surface of the inner case 3. It is set larger than the thickness dimension. As a result, in the bed configuration (b) in which the outer case 4 is positioned at the drawer position (d), the mattress M1 is placed on the upper surface of the outer case 4 and the flat upward surface is continuous by the two backrest mat blocks M21. 2 is placed on the upward surface of the inner case 3, the upward surface of the mattress M1 and the upward surface of the backrest mat M2 in the expanded state are flat as shown in FIG. It is possible to form a flat bed surface with cushioning properties above the outer case 4 and the inner case 3.

  As described above, the sofa bed X according to the present embodiment includes the mattress M1 that forms the seating surface in the sofa form (a) and the backrest mat M1 that forms the backrest surface in the sofa form (a). In the form (b), the mattress M1 forms the first bed surface, and the backrest mat M2 is arranged on the first bed surface in the state where the backrest mat M2 is arranged along the mattress M1 along the moving direction D of the movable table 2. Since it is configured so as to form a substantially flat second bed surface, the mattress M1 and the backrest mat M2 used in the sofa form (a) are also used in the bed form (b) and have excellent cushioning properties. It is possible to form a surface. In the present embodiment, by placing the mattress M1 on the upward surface of the movable table 2 (outer case 4), the seat surface in the sofa form (a) can be formed, and in the bed form (b). A first bed surface can be formed. Moreover, the backrest mat M2 forming the seat surface in the sofa form (a) is placed on the upward surface of the movable table 2 (outer case 4) in the bed form (b) to form the second bed surface. Can do.

  In particular, in the present embodiment, a difference is provided in the thickness dimensions of the mattress M1 and the backrest mat M2 in (b) in the bed form (dimensions along the height direction in the bed form (b)). Since it is configured to eliminate the step between the upward surface of the fixed base 1 and the upward surface of the movable base 2 in the bed form (b), it appears in the bed form (b) without using a dedicated step eliminating member. A level difference between the upward surface of the fixed table 1 and the upward surface of the movable table 2 can be filled, and a flat bed surface in which the first bed surface and the second bed surface are continuous with each other along the moving direction D of the movable table 2. It is possible to form.

  Moreover, in the sofa bed X of this embodiment, as shown in FIG. 1, in the sofa form (a), it is possible to arrange the cushion body M3 on the backrest surface of the backrest mat M2. In the present embodiment, the cushion body M3 includes a plurality of (four in the illustrated example) cushion sheets M31 each having the same thickness dimension, and the plurality of cushion sheets M31 are arranged in the front-rear direction D. The deformable state is applied from the unfolded state (see FIG. 2) to the folded state (see FIG. 1) in a plurality of steps (four steps in the illustrated example) by the number of cushion sheets M31. In the present embodiment, the flat size of the cushion body M3 in the unfolded state is a flat bed surface continuous in the front-rear direction D formed by the upward surface of the backrest mat M2 in the unfolded state and the upward surface of the mattress M1. The whole is set to a size that can be covered from above (see FIG. 2). In the sofa bed X of the present embodiment, the cushion body M3 is unexpectedly unfolded from the folded state by accommodating and covering the cushion body M3 in the folded state in a bag-like cushion cover (not shown). Can be prevented.

  Furthermore, in the sofa bed X of this embodiment, as shown in FIG. 1, the 2nd cushion body M4 can be arrange | positioned in the front surface of the cushion body M3 in a folded state at the time of sofa form (a). In the present embodiment, the second cushion body M4 has a disk shape, and the one in which the center part of the circle is depressed by sewing together the buttons M41 arranged at positions facing the thickness direction in the center part of the circle is applied. doing.

  The sofa bed X of the present embodiment includes the mattress M1, the backrest mat M2, the cushion body M3, and the second cushion body M4 as essential parts or optional parts, and the outer case 4 with respect to the inner case 3 A slide mechanism 5 that slides in the direction D is provided. In the sofa bed X of the present embodiment, the mattress M1, the backrest mat M2, the cushion body M3, and the second cushion body M4 are placed on the upward surface of the outer case 4 and the upward surface of the inner case 3. The outer case 4 can be moved back and forth with respect to the inner case 3 by the slide mechanism 5 in a state where there is no state, so that it can be deformed between the sofa form (a) and the bed form (b).

  Here, the outer case 4, the inner case 3, and the slide mechanism 5 are indispensable constituent requirements that are indispensable without depending on the installation location and use situation of the sofa bed X according to the present embodiment. On the other hand, all or a part of the mattress M1, the backrest mat M2, the cushion body M3, and the second cushion body M4 can provide a user with a seating surface, a backrest surface, and a bed surface that are comfortable and comfortable to sleep. It can also be regarded as an optional member for providing. Of course, all or part of the mattress M1, the backrest mat M2, the cushion body M3, and the second cushion body M4 (for example, only the mattress M1 and the backrest mat M2) can be regarded as essential constituent elements of the sofa bed X. It is.

  As shown in FIGS. 1 to 3 (FIG. 3 is a view corresponding to a cross section taken along line xx of FIG. 1), the outer case 4 includes a pair of left and right side plates 41 that define the side surface of the outer case 4, It has a front plate 42 that defines the front surface 4 a of the outer case 4 and a top plate 43 that defines the upward surface of the outer case 4, and has a substantially rectangular parallelepiped shape having an internal space opened rearward.

  In the sofa bed X of the present embodiment, as shown in FIGS. 1 and 2, the interior space of the outer case 4 opened rearward is a space (inner case) that can accommodate the inner case 3 in the sofa form (a). It can be utilized as the accommodation space 4S1). In the sofa bed X of the present embodiment, the front / rear dimension of the outer case 4 is set larger than the front / rear dimension of the inner case 3, and the inner space of the outer case 4 is moved in the moving direction D (front / rear direction) of the movable table 2 at the time of form deformation. D) is divided into a main space (inner case accommodating space 4S1) that can accommodate the movable table 2 in the sofa form (a) and a sub space in which the fixed table 1 is not accommodated in the sofa form (a). Is set in the article accommodating space 4S2 in which articles other than the inner case 3 can be accommodated. That is, among the internal spaces of the outer case 4, a relatively rear space is set as the inner case housing space 4S1, while a predetermined space (sub space) that extends forward from the inner case housing space 4S1 is, for example, bedding It is set as an article storage space 4S2 in which articles such as the like can be stored.

  The article accommodation space 4S2 is a space isolated from the inner case accommodation space 4S1. In the present embodiment, the inner case housing space 4S1 and the article housing space 4S2 are configured to be partitioned in the front-rear direction D by a partition back plate 44 provided at a position facing the front plate 42 of the outer case 4. Further, the inner case storage space 4S1 and the article storage space 4S2 are partitioned in the height direction by a partition bottom plate 45 that connects the partition back plate 44 and the front plate 42. In the sofa bed X of the present embodiment, the user (not only those who use the sofa bed X in the sofa form (a) or the bed form (b), the sofa bed X in the article storage space 4S2). The user can not access the state in which the sofa form (a) is deformed to the bed form (b) or the person who is engaged in the work of transforming the bed form (b) to the sofa form (a) is accessible. It is set to be switchable between different states.

  In particular, in the present embodiment, as shown in FIG. 4 (the figure corresponds to a cross section taken along line y-y in FIG. 2), a pair of left and right side plates 41 of the outer case 4 are respectively provided with a predetermined gap. A pair of left and right partition side plates 46 are arranged so as to face each other, and the above-described front plate 42, partition back plate 44, partition bottom plate 45, and pair of left and right partition side plates 46 are assembled to each other to form a box-shaped drawer portion 47. The interior space of the drawer portion 47 is configured to be usable as the article storage space 4S2. Accordingly, the article housing space 4S2 of the outer case 4 has a front and rear dimension defined by the front plate 42 and the partition back plate 44, a width dimension defined by the pair of left and right partition side plates 46, and a depth defined by the partition bottom plate 45. It is space. In the present embodiment, the partition bottom plate 45 is disposed at a position above the lower end of the side plate 41 of the outer case 4 by a predetermined dimension, and the article storage space 4S2 is set to be shallower than the inner case storage space 4S1. . The upper ends of the pair of left and right partition side plates 46 and the partition back plate 44 are positioned at a position lower than the top plate 43 of the outer case 4. Thereby, it is possible to avoid a situation in which the pair of partition side plates 46 and the partition back plate 44 constituting the drawer portion 47 are in contact with the top plate 43. In the following description, a structure formed of parts (a pair of left and right side plates 41 and a top plate 43) that do not constitute the drawer portion 47 in the outer case 4 is referred to as an “outer case main body”.

  In the sofa bed X of the present embodiment, by pulling the drawer portion 47 forward from the outer case main body, the internal space of the drawer portion 47, that is, the article accommodation space 4S2 becomes a space opened upward, and the user can This article storage space 4S2 can be accessed. In the present embodiment, for example, a drawer handle 48 is formed at the lower end of the central portion in the width direction W of the front plate 42 (see FIGS. 1 and 2), and the operation force is obtained by hooking a finger on the drawer handle 48 and pulling it forward. Is provided so that the drawer portion 47 can be drawn forward from the outer case main body.

  The sofa bed X of the present embodiment is provided with a drawer slide rail mechanism 49 between the side plate 41 and the partition side plate 46 (see FIG. 4). In this embodiment, the drawer slide rail mechanism 49 includes three outer rails, an intermediate rail that is slidably fitted to the outer rail, and an inner rail that is slidably fitted to the intermediate rail. A stepped slide rail mechanism is applied. And while fixing an outer rail to the side plate 41 and fixing an inner rail to the partition side plate 46, the standard position (e) shown by the continuous line in FIG.1 and FIG.2 and the standard position (e) 1 and FIG. 2 withdrawn further forward than the open position (f) indicated by an imaginary line. When the drawer portion 47 is positioned at the open position (f), the internal space 4S2 of the drawer portion 47 is fully opened upward. In FIG. 1 and FIG. 2, the arrangement area of the drawer slide rail mechanism 49 is schematically shown by imaginary lines.

  In the sofa bed X of the present embodiment, when the drawer portion 47 is positioned at the standard position (e), the user cannot access the article storage space 4S2. The drawer slide rail mechanism 49 restricts the drawer 47 from moving forward from the open position (f) when the drawer 47 is moved from the standard position (e) to the open position (f). A drawer stopper that restricts the movement of the drawer portion 47 backward from the standard position (e) when the drawer portion 47 is moved from the open position (f) to the standard position (e) It is provided in the location.

  In the present embodiment, as shown in FIG. 5 (the figure is a plan view of the outer case 4 in the sofa configuration (a)), the top plate 43 of the outer case 4 is connected to the upper end portions of the pair of left and right side plates 41. Among the plurality of first top plate elements 431 and the first top plate elements 431 that are long in the width direction W connecting the front end portions, the center portions in the front-rear direction D, and the rear end portions, respectively. A plurality of second top plate elements 432 that are long in the width direction W and are arranged in the shape of a scissors with a predetermined gap in the front-rear direction D are configured. Specifically, the plurality of second top plate elements 432 are divided into upper and lower rectangular openings in a plan view and are partitioned by a pair of left and right side plates 41 of the outer case 4 and a first top plate element 431 adjacent in the front-rear direction D. The unit top plate 43U (a unit obtained by unitizing the plurality of second top plate elements 432 and the frame member 433) is arranged in the upper opening of the outer case 4 by fixing to the frame member 433 that can be fitted to the unit. doing. The unit top plate 43U is supported in a state where the unit top plate 43U is mounted on the long mounting portion 411 in the front-rear direction D fixed to the inward surfaces of the pair of left and right side plates 41. Further, in the sofa bed X of the present embodiment, the upward surface of the unit top plate 43U placed on the placement portion 411 is the upward surface of the front plate 42, the upward surface of the first top plate element 431, and the upward side plate 41. It is set to be at the same height as the surface (see FIGS. 2 and 4). The unit top plate 43U supported in the state of being placed on the placement portion 411 can be removed from the placement portion 411 or placed again on the placement portion 411 manually without using a special tool. it can.

  As shown in FIGS. 1 to 3, the inner case 3 is set to a size that can be accommodated in the inner case accommodating space 4 </ b> S <b> 1 of the outer case 4, and a pair of left and right side plates 31 that define the side surface of the inner case 3. And the front plate 32 which is disposed at a position where the front ends of the side plates 31 are connected to each other and which defines the front surface of the inner case 3, the top plate 33 which defines the upward surface of the inner case 3, and the rear ends of the side plates 31 are connected. And a back plate 34 that defines the back surface of the inner case 3 and a bottom plate 35 that defines the bottom surface of the inner case 3. The inner space of the inner case 3 surrounded by the pair of left and right side plates 31, the front plate 32, the top plate 33, the back plate 34, and the bottom plate 35 is made into an article accommodation space 3S in which articles such as bedding can be accommodated. It is set.

  In this embodiment, FIG. 6 (the figure is a plan view of the inner case 3 in the bed configuration (b), and the outer case 4 and the first channel material C1 and the second channel material C2 to be described later are shown in phantom lines. As shown in the figure, the top plate 33 of the inner case 3 is arranged with a long top plate element 331 (crosspiece) in the width direction W of the sofa bed X with a predetermined gap in the front-rear direction D. It is configured by a kite-shaped unit top plate 33U. Specifically, the sofa bed X of the present embodiment includes a plurality of top plate elements 331 having a rectangular upper opening in a plan view that is partitioned by a pair of left and right side plates 31, a front plate 32 and a back plate 34 in the inner case 3. The unit top plate 33U (which unitizes a plurality of top plate elements 331 and the frame material 333) is disposed in the upper opening of the inner case 3 by being fixed to the frame member 333 that can be fitted to the unit. Yes. The inner case 3 of the present embodiment has an inward surface of the pair of left and right side plates 31, a rear surface of the front plate 32, and a front surface of the back plate 34, the upper ends of these surfaces, that is, in the vicinity of the opening edge of the upper opening. The mounting portion 36 is fixed, and the unit top plate 33U is mounted on the mounting portion 36 and supported (see FIGS. 1 and 2). In the sofa bed X of the present embodiment, the upward surface of the unit top plate 33U placed on the placement portion 36 is flush with the upward surface of the front plate 32, the upward surface of the side plate 31, and the upward surface of the back plate 34. It is set to be in the position.

  In the sofa bed X of the present embodiment, when the outer case 4 is positioned at the drawer position (d), the above-described mattress M1 is not laid on the top plate 43 of the outer case 4 and the top plate 33 of the inner case 3. In the inner case 3, the entire upward surface of the top plate 33 (unit top plate 33U) is visible (see FIGS. 2 and 6). Then, when the exposed top plate 33 (unit top plate 33U) is removed from the placement portion 36, the article accommodating space 3S of the inner case 3 becomes a space that is fully opened upward through the upper opening, and the user can The article accommodation space 3S is accessible. Further, in a state where the top plate 33 (unit top plate 33U) is placed on the placement portion 36, the region opened upward through the upper opening in the article accommodating space 3S of the inner case 3 is the top plate 33 (unit Compared with the state in which the top plate 33U) is removed from the placement unit 36, the user is not able to access the article storage space 3S or is inaccessible (hereinafter referred to as “inaccessible state”). Note that the unit top plate 33U supported in the state of being placed on the placement unit 36 is removed from the placement unit 36 or placed on the placement unit 36 by hand without using a special tool. be able to.

  Thus, in the sofa bed X of this embodiment, the article storage space 3S of the inner case 3 is set to be switchable between an accessible state and an inaccessible state. Here, in the inner case 3, when a structure including parts (a pair of left and right side plates 31, a front plate 32, and a back plate 34) excluding the top plate 33 (unit top plate 33 U) is referred to as an “inner case body”, A part (for example, the rear end) of the plate 33 (unit top plate 33U) is configured to be rotatable about a horizontal axis with respect to the inner case body, and the top plate 33 (unit top plate 33U) is set in a horizontal posture. It is also possible to configure such that the inaccessible state is reached, and the top plate 33 (unit top plate 33U) is rotated by a predetermined angle around the horizontal axis in a direction rising from a horizontal posture.

  In the inner case 3 of the present embodiment, as shown in FIG. 3, the height positions of the left and right ends and the vicinity thereof in the bottom plate 35 are set higher than the widthwise W center portion of the bottom plate 35. Here, when the left and right ends of the bottom plate 35 and the vicinity thereof are the upper step portion 351 and the width direction W center portion of the bottom plate 35 is the lower step portion 352, the inner case 3 of the present embodiment has the width direction W center portion. It has a two-stage bottom plate 35 set deeper than the left and right sides.

  In the sofa bed X of the present embodiment, the lower step portion 352 of the inner case 3 is fixed to the floor surface F. Specifically, the first channel material C1 that is fixed to the floor surface F and extends in the front-rear direction D is used with an appropriate fixing tool (for example, the inner case) with the lower step portion 352 of the inner case 3 placed thereon. The inner case 3 is fixed to the floor surface F by screwing the bolts K1 inserted from the article storage space 3S side of 3 into a nut provided on the first channel material C1. Further, a slide rail 51 of the slide mechanism 5 is disposed in a space (a space isolated from the article storage space 3S) that extends below the upper stage portion 351 (see FIG. 3).

  The slide rail 51 is a view showing the outer case 4 and the slide mechanism 5 extracted from FIG. 1 showing FIG. 7 to FIG. 9 (7 is the sofa form (a), and FIG. 8 is the sofa form (a). FIG. 9 is a schematic view showing the slide mechanism 5 and its peripheral parts extracted from the plan view of the sofa bed X of FIG. 9, and FIG. 9 is a longitudinal view as shown in FIG. 8 corresponding to the bed configuration (b). Is fixed to the floor surface F in a posture that is matched with the front-rear direction D. In FIG. 8 only, the slide rail 51 is provided with a pattern. In the present embodiment, an appropriate fixture is used (for example, inserted from above the slide rail 51) with the slide rail 51 placed on the second channel member C <b> 2 that is fixed to the floor surface F and extends in the front-rear direction D. The slide rail 51 is fixed to the floor surface F (see FIGS. 3, 4 and 7) by screwing the bolts K2 thus screwed onto the nuts provided on the second channel material C2. In the present embodiment, the slide rail 51 has a narrow portion (necked portion) whose width dimension is smaller than the width dimension of the upper end portion and the lower end portion at the center portion in the height direction. The rail in which the upper collar part and the lower collar part are formed is applied to the sandwiched position (see FIG. 3). The slide rail 51 is located on the floor surface F from the same position or substantially the same position as the rear end 3b of the inner case 3 in front of the front end 3a of the inner case 3 and at the accommodation position (c). 4 is disposed over a predetermined position behind the front end 4a (see FIGS. 1 and 7). In FIG. 7, the partition back plate 44, the partition bottom plate 45, and the pair of left and right partition side plates 46 constituting the drawer portion 47 are omitted.

  The sofa bed X of the present embodiment employs the slide mechanism 5 configured using the above-described slide rail 51 and the slider 52 that can slide along the slide rail 51.

  As shown in FIGS. 3, 4, 7 and 8, the slider 52 is fixed to the outer case 4 which is the movable base 2. In the present embodiment, a slider 52 that covers the upper collar portion and the narrow portion of the slide rail 51 from above and that can be engaged with the slide rail 51 in a posture that sandwiches the slide rail 51 from the width direction W is applied. The slider 52 is provided so as to be movable along the slide rail 51 while maintaining the engaged state with the slide rail 51. In particular, in this embodiment, a ball feed groove that allows the ball to roll along the extending direction of the slide rail 51 is formed in a predetermined space where the slide rail 51 and the slider 52 face each other, and the ball feed groove rolls along the ball feed groove. A large number of moving ball rows (ball rows) are configured to circulate in a plurality of rows (for example, four rows) of ball feed grooves through a circulation path (not shown) provided at the front end portion and the rear end portion of the slider 52. . And by arranging each ball row at a contact angle of 45 degrees with respect to the ball feed groove so as to have the same rated load in, for example, the four directions of the radial direction, the reverse radial direction, and the lateral direction acting on the slider 52, The rigidity in the four directions can be increased while maintaining a constant low coefficient of friction, and a highly accurate and stable linear motion can be obtained. In addition, it is also possible to interpose a retainer capable of holding the balls at a predetermined pitch between the balls adjacent in the rolling direction.

  In this embodiment, such a slider 52 is attached to a bracket 53 provided on each of the pair of left and right side plates 41 of the outer case 4 (see FIGS. 3, 4, 7, and 8). The bracket 53 is predetermined on the inward surface of the side plate 41 from the same position as the rear end 4b of the outer case 4 or a position ahead of the rear end 4b of the outer case 4 by a predetermined dimension from the front end 4a of the outer case 4. It arrange | positions in the area | region over the back position by the dimension. In the present embodiment, a standing wall 531 that is in contact with the lower end region of the inward surface of the side plate 41 and a horizontal wall 532 that protrudes from the lower end of the standing wall 531 toward the center in the width direction W of the outer case 4 are provided. A bracket having an L-shaped cross section is applied (see FIGS. 2 and 3). The bracket 53 can be fixed to the side plate 41 with an appropriate fixing tool in a state where the standing wall 531 is in contact with the inward surface of the side plate 41. Further, in a state where the bracket 53 is fixed to the side plate 41, the protruding end of the horizontal wall 532 (the end of the horizontal wall 532 on the center side in the width direction W of the outer case 4) does not contact the bottom plate 35 of the inner case 3. It is set. The bracket 53 supports the slider 52 in a posture in which the slider 52 is suspended from the horizontal wall 532. Note that the slider 52 supported by the bracket 53 is in a state in which it cannot move with respect to the bracket 53.

  In the sofa bed X of the present embodiment, a plurality of sliders 52 are attached to a pair of left and right brackets 53, respectively. Specifically, as shown in FIGS. 7 and 8, each bracket 53 has two sliders 52 (the first slider 52 (F) is a relatively front slider 52 and a relatively rear slider 52 (F)). The slider 52 is referred to as “second slider 52 (S)”. In the present embodiment, the second slider 52 (S) is attached at the same position as the rear end of the bracket 53 or a position ahead of the rear end of the bracket 53 by a predetermined dimension, and from the attachment position of the second slider 52 (S). A first slider 52 (F) is attached at a position ahead by a predetermined dimension. The distance from the rear end of the second slider 52 (S) to the front end of the first slider 52 (F) (inter-slider distance) can be set to an appropriate value.

  Further, the sofa bed X of the present embodiment includes a connecting portion 54 that connects the pair of left and right brackets 53 (see FIGS. 4 and 8). The connecting portion 54 is a long cylindrical member along the width direction W of the sofa bed X, and both end portions thereof are fixed to the standing wall 531 of the bracket 53 by a connecting process such as welding. That is, the relative position between the brackets 53 is fixed by connecting the pair of left and right brackets 53 by the connecting portion 54. In the sofa bed X of the present embodiment, the pair of left and right brackets 53 are integrally connected by a connecting portion 54 to form a unit, and the unitized structure is interposed between the side plates 41 of the outer case 4. Therefore, it is possible to ensure high rigidity even in the outer case 4 that does not include a bottom plate. In this embodiment, the connection part 54 is each arrange | positioned in the part spaced apart from the front-end part of the bracket 53, and the front end of the bracket 53 predetermined dimension back (refer FIG. 8). In the sofa bed X of the present embodiment, as shown in FIG. 8, when the outer case 4 is positioned at the accommodation position (c) among the brackets 53 in which the connecting portion 54 is arranged on the outer case 4. In addition, it is set in a region in front of the front end 3a of the inner case 3 so as to avoid a situation in which the connecting portion 54 and the inner case 3 are in contact with each other.

  In the sofa bed X of the present embodiment, a plurality of sliders 52 attached to the pair of left and right brackets 53 are engaged with each other while being placed on the slide rail 51. That is, the sofa bed X of the present embodiment is configured such that a plurality of sliders 52 (the first slider 52 (F) and the second slider 52 (S)) attached to each bracket 53 are engaged with the slide rail 51 and each slide is placed. On the rail 51, the sliders 52 (first slider 52 (F), second slider 52 (S) are maintained while maintaining the distance between the sliders 52 (first slider 52 (F), second slider 52 (S)). )) Is configured to be movable in the front-rear direction D.

  As shown in FIGS. 3 and 4, the sofa bed X according to the present embodiment has a bottom surface of the outer case 4 (in this embodiment, the downward surface of the side plate 41 and the downward surface of the front plate 42 are the bottom surface of the outer case 4. The slider 52 and the slide rail 51 are brought into contact with each other in preference to contact with the floor surface F, and the outer case 4 which is the movable base 2 is brought into contact with the floor by the engaging portion of the slide rail 51 and the slider 52. It is configured to support in a state where it floats from the surface F. Specifically, the sofa bed X according to this embodiment includes a plurality of sliders 52 (first slider 52 (F), second slider) for each slide rail 51 fixed to the floor surface F via the second channel material C2. 52 (S)) are arranged at a predetermined distance in the front-rear direction D, and the sliders 52 (first slider 52 (F), second slider 52 (S)) are engaged with the slide rail 51. Depending on the joint portion, the load on the outer case 4 itself and the load acting on the outer case 4 (the weight of the bedding such as the mattress M1 laid on the outer case 4, the user sitting on the outer case 4 or lying on the side The structure which supports weight etc.) is adopted.

  Thus, in the sofa bed X of the present embodiment, the slider 52 constituting the slide mechanism 5 is partitioned by the pair of left and right side plates 41 in the width direction W in which the pair of left and right side plates 41 included in the outer case 4 face each other. The slide rail 51 that is arranged in the area and constitutes the slide mechanism 5 together with the slider 52 is arranged in a predetermined area on the floor surface F according to the arrangement position of the slider 52 (see FIGS. 3 and 4).

  In the present embodiment, the carpet R is laid on the floor surface F excluding at least a portion where the pair of left and right second channel members C2 are disposed. If this carpet R is regarded as the “floor surface” on which the sofa bed X is installed, in the sofa bed X of the present embodiment, the bottom surface of the outer case 4 should not be in contact with the carpet R that is the floor surface. The slider 52 and the slide rail 51 are brought into contact with each other in preference to the bottom surface of the outer case 4 being in contact with the carpet R. It is configured to support in a state where it floats from the carpet R. In the present embodiment, the carpet R is not laid on the entire area sandwiched between the pair of left and right second channel members C2 in the width direction W of the sofa bed X in the floor surface F (see FIGS. 3 and 4). ). This area is an area that cannot be visually recognized from the outside or is extremely difficult to view. Thereby, the usage amount of the carpet R can be reduced, and the present invention is applied as compared with the aspect in which the carpet R is also laid on the entire region sandwiched between the pair of left and right second channel members C2 in the width direction W of the sofa bed X. The more expensive the carpet, the greater the cost savings.

  The sofa bed X according to the present embodiment having the above-described configuration is configured such that the outer case 4 that is the movable base 2 is accommodated by the slide mechanism 5 with respect to the inner case 3 that is the fixed base 1 as shown in FIG. And the sliding position (d) shown in FIG. 2 can be slid. Here, the accommodating position (c) is a position where the entire inner case 3 is accommodated in the inner space (inner case accommodating space 4S1) of the outer case 4, and the drawing position (d) is an outer position at the accommodating position (c). This is a position where the case 4 is pulled forward, and is a position where the inner case 3 is exposed without being accommodated in the internal space (inner case accommodating space 4S1) of the outer case 4.

  In the sofa bed X of the present embodiment, a position where the rear end 4b of the outer case 4 matches or substantially matches the rear end 3b of the inner case 3 is set as the storage position (c). The position where the rear end 4b of the outer case 4 is located behind the rear end 3b of the inner case 3 can be set as the storage position (c). Further, in the sofa bed X of the present embodiment, a position where all or substantially all of the inner case 3 is exposed without being accommodated in the internal space (inner case accommodating space 4S1) of the outer case 4 is set as the drawer position (d). ing. In addition, it is also possible to set the position where the predetermined region on the front end side of the inner case 3 is exposed without being accommodated in the inner space (inner case accommodating space 4S1) of the outer case 4 as the extraction position (d).

  And the sofa bed X of this embodiment becomes a sofa form (a) which can be used as a sofa by positioning the outer case 4 in the accommodation position (c), and by positioning the outer case 4 in the drawer position (d). The bed form (b) can be used as a bed. In addition, the sofa bed X of the present embodiment always moves the outer case 4 that is the movable base 2 from the floor surface F (carpet R), including during sliding movement between the storage position (c) and the extraction position (d). It is configured to maintain a floating state.

  The sofa bed X of the present embodiment includes a first lock means 6 for fixing the outer case 4 to a position (accommodating position (c)) when the outer case 4 is in the sofa form (a), and a position when the outer case 4 is in the bed form (b). And a second lock means 7 for fixing to (drawing position (d)).

  As shown in FIG. 1, FIG. 3, FIG. 5 and FIG. 7, the first lock means 6 is formed on the lock pin 61 provided on the outer case 4, the inner case 3 and the outer case 4 in the storage position (c) And a pin insertion hole into which the lock pin 61 can be inserted. As shown in FIG. 7, the lock pin 61 includes an axial lock pin main body 611 and a pin holder 612 that holds the lock pin main body 611 so as to be movable up and down in the height direction. The lock pin 61 has a lock position where the lower end portion of the lock pin main body 611 can be inserted into the first pin insertion hole by pressing the upper end portion of the lock pin main body 611 from above, and a release button provided on the pin holder 612 By the operation of pressing 613, the lower end portion of the lock pin main body 611 becomes a lock release position where the lock pin main body 611 is detached from the first pin insertion hole. In the present embodiment, such a lock pin 61 is provided in the vicinity of the rear end of the top plate 43 of the outer case 4 (see FIGS. 1, 5, and 7). Note that at least the lock pin main body 611 is positioned at the lock position, and the upper end of the lock pin 61 is set to a height position lower than the upward surface of the top plate 43. In addition, an opening 435 that allows the user to access the release button 613 provided on the pin holder 612 and the upper end of the lock pin main body 611 is formed around the top plate 43 where the lock pin 61 is provided (see FIG. 5).

  The first pin insertion hole of the first locking means 6 is formed near the rear end of the top plate 43 of the inner case 3. In the present embodiment, a plate-like pin receiver 63 in which a through hole 62 that penetrates in the thickness direction and through which the lower end portion of the lock pin main body 611 can be inserted is formed near the rear end of the top plate 43 in the inner case 3. When the lock pin 61 is positioned at the lock position, the lower end portion of the lock pin main body 611 passes through the through hole and reaches the first pin insertion hole.

  Further, as shown in FIGS. 2, 3 and 6, the second locking means 7 is formed on the above-described lock pin 61 and the inner case 3, and when the outer case 4 is positioned at the extraction position (d). The second pin insertion hole into which the lock pin 61 can be inserted is used. The second pin insertion hole of the second locking means 7 is formed near the front end of the top plate 33 of the inner case 3. In the present embodiment, a plate-like pin receiver 73 in which a through-hole 72 that penetrates in the thickness direction and through which the lower end portion of the lock pin main body 611 can be inserted is provided in the inner case 3 near the front end of the top plate 33. When the lock pin 61 is positioned at the lock position, the lower end portion of the lock pin main body 611 passes through the through hole 72 and reaches the pin insertion hole. In the present embodiment, a stopper block 74 in which a pin insertion hole 72 is formed is provided on the front surface of the front plate 32 of the inner case 3 (see FIG. 2).

  Thus, the sofa bed X of this embodiment comprises the 1st locking means 6 and the 2nd locking means 7 using the common lock pin 61. FIG.

  Next, with respect to the sofa bed X having the above configuration, a method of using mainly a method of transforming from the sofa form (a) to the bed form (b) and a method of transforming the bed form (b) to the sofa form (a). The operation and effect will be described.

  As illustrated in FIG. 10, the sofa bed X according to the present embodiment can be installed in a predetermined space of a guest room (suite room) in the railway vehicle T, for example. In such a suite room, since it is necessary to arrange a bedroom, a shower room, a toilet, etc. in a limited space in the railway vehicle T, the installation location of the sofa bed X on the floor F in the room and the sofa bed X The installation area of the system will also be restricted under advanced layout design.

  Below, the case where the sofa bed X is installed in the position where the rear end of the sofa bed X is in contact with or close to the wall Ta partitioning the guest rooms will be described. The sofa bed X according to the present embodiment can be installed on the floor surface F based on the first channel material C1 and the second channel material C2 fixed in advance to the floor surface F. That is, the sofa bed X of the present embodiment fixes the slide rail 51 to the second channel material C2 with the slide rail 51 placed on the second channel material C2, and the bottom plate 35 of the inner case 3 Among them, the inner case 3 is fixed to the first channel material C1 with the lower step portion 352 placed on the first channel material C1 (see FIG. 3). This configuration is for realizing a stable installation of the sofa bed X against shaking during traveling of the railway vehicle T.

  The front and rear dimensions of the sofa bed X according to the present embodiment are longer in the bed configuration (b) than in the sofa configuration (a), and the occupied area of the sofa bed X on the floor surface F is also the sofa configuration. The bed configuration (b) is wider than the (a) configuration. Therefore, when the sofa bed X is installed in a limited space in the passenger compartment of the railway vehicle T, it is preferable that the sofa form (a) is used except for the time zone used as a bed. In addition, in FIG. 10, the sofa bed X of the sofa form (a) and the sofa bed X of the bed form (b) are typically shown side by side.

  The sofa bed X of this embodiment becomes a sofa form (a) by positioning the outer case 4 in the accommodation position (c) (see FIG. 1). In the present embodiment, the lock pin 61 enters the pin insertion hole of the first lock means 6 by setting the lock pin 61 in the lock position in a state where the outer case 4 is positioned at the storage position (c), and the first lock By means 6, the outer case 4 can be brought into a locked state where it cannot move.

  In the sofa form (a), substantially the entire inner case 3 is covered with the outer case 4, the mattress M1 is placed on the top plate 43 of the outer case 4, and two backrest mats are placed on the mattress M1. By placing the backrest mat M2 in which the block M21 is folded in two steps, the passenger (passenger) leans on the backrest surface of the backrest mat M2 inclined in the height direction. Can sit on the mattress M1 (see FIG. 2). In the sofa bed X of the present embodiment, a cushion body M3 obtained by folding a plurality of cushion sheets M31 in a plurality of stages is placed on the backrest surface of the backrest mat M2 in order to provide even better comfort. In addition, the second cushion body M4 can be disposed on the front surface of the cushion body M3. Note that the sofa bed X of the present embodiment has a rear end (rear surface) of the mattress M1 and a rear end (rear surface) of the backrest mat M2 in which two backrest mat blocks M21 are folded in two stages. The mattress M1 and the backrest mat M2 can be disposed at an appropriate position (normal position) with respect to the outer case 4 by bringing the rear end of X into contact with or in contact with the adjacent partition wall Ta (see FIG. 1). .

  In order to transform the sofa bed X according to the present embodiment from the sofa form (a) to the bed form (b), first, the mattress M1 and the like placed on the outer case 4 is appropriately retracted from the outer case 4 The entire top plate 43 of the outer case 4 is exposed by retreating to a space. Next, the lock pin 61 of the first lock means 6 is moved from the lock position to the lock release position. This process is performed by, for example, changing the sofa bed X from the sofa form (a) to the bed form (b), such as a crew member (crew attendant) engaged in customer service for passengers in the guest room, or from the bed form (b) to the sofa form. A person (worker) who is engaged in the work to be deformed to (a) is provided in the pin holder 612 through the opening 435 formed in the periphery of the top plate 43 of the outer case 4 where the lock pin 61 is provided. This can be done by accessing the release button 613 and pressing the release button 613.

  After such operation, when the locked state of the outer case 4 by the first locking means 6 is released, the outer case 4 becomes slidable forward by the slide mechanism 5. As shown in FIGS. 1 and 5, the sofa bed X of the present embodiment has a puller 8 (digger puller) that can be gripped by the operator when the outer case 4 in the storage position (c) is pulled forward. I have. In the present embodiment, the pulling handle 8 (digging pull) is formed in the central portion in the width direction W in the vicinity of the front end of the top plate 43. Accordingly, for example, the worker puts his hand into the puller 8 (digging puller) from the front of the sofa bed X in the sofa form (a) and gives the operation force to pull it forward as it is. Can be moved forward. That is, when an operator applies an operation force to pull the outer case 4 forward, the slider 52 attached to the outer case 4 via the bracket 53 moves forward along the slide rail 51 fixed to the floor surface F. As a result, the outer case 4 to which the slider 52 is attached is also moved forward via the bracket 53 (see FIGS. 2 and 9).

  As shown in FIGS. 2 and 9, the sofa bed X according to this embodiment allows the slider 52 to move further forward when the outer case 4 in the accommodation position (c) is pulled forward by a predetermined distance. A front stopper 91 is provided for regulating. In the present embodiment, a front stopper 91 is disposed at the front end of the slide rail 51. As shown in FIG. 7, the front stopper 91 includes a portion (protruding portion) that protrudes upward from the upward surface of the slide rail 51, and a plurality of sliders 52 (first sliders 52 (F) attached to each bracket 53. ), Of the second slider 52 (S)), the foremost slider 52 (first slider 52 (F)) comes into contact with the protruding portion, thereby restricting further forward movement of the slider 52. . In the present embodiment, the front stopper 91 is constituted by a crosspiece (front crosspiece) arranged at a position continuous to the front ends of the pair of left and right brackets 53. The front pier is disposed at a position straddling the front ends of the pair of left and right second channel members C2, and is fixed to the second channel member C2 and the first channel member C1 using a fixture (see FIGS. 8 and 9). ).

  In the sofa bed X according to the present embodiment, the position of the outer case 4 in the state where the forward movement of the slider 52 is restricted by the front stopper 91 is set to the “drawing position (d)”, and the outer case 4 is set to the drawing position. It can be made into a bed form (b) by positioning in (d). In the present embodiment, among the plurality of sliders 52 (the first slider 52 (F) and the second slider 52 (S)) attached to each bracket 53 in a state where the outer case 4 is positioned at the drawer position (d). The first slider 52 (F) that is the foremost slider 52 reaches the front end or the vicinity of the front end of the slide rail 51, and the second slider 52 (S) that is the rear slider 52 is the inner case 3 of the slide rail 51. Has reached the region in the vicinity of the front end 3a (see FIGS. 2 and 9).

  In the present embodiment, the lock pin 61 is switched from the unlock position to the lock position while the outer case 4 is positioned at the pull-out position (d), so that the lock pin 61 is inserted into the pin insertion hole of the second lock means 7. The outer case 4 can be locked in the drawing position (d) by the second locking means 7 (see FIG. 2).

  As described above, the sofa bed X of the present embodiment has the outer case 4 moved to the pull-out position (d), and substantially the entire top plate 33 of the inner case 3 and the top plate 43 of the outer case 4. The whole of is exposed. And in the sofa bed X of this embodiment, if the unit top plate 33U is removed from the mounting part 36 among the exposed top plates 33 of the inner case 3, the article storage space 3S of the inner case 3 becomes accessible. Thus, articles such as bedding can be accommodated in the article accommodating space 3S. Further, by placing the removed unit top plate 33U on the placement portion 36 again, the article storage space 3S becomes inaccessible.

  As described above, in the sofa bed X of the present embodiment, when the outer case 4 is positioned at the drawer position (d), the article storage space 3S of the inner case 3 can be switched between an accessible state and an inaccessible state. it can.

  Further, as shown in FIGS. 1 and 2, the sofa bed X of the present embodiment has a standard position (when the outer case 4 is positioned at either the drawer position (d) or the storage position (c). The sliding portion 47 in e) is slid to the open position (f) (the drawer portion 47 is pulled forward from the outer case main body), so that the internal space 4S of the drawer portion 47, that is, the article storage space 4S2 can be accessed. It becomes possible to accommodate articles such as bedding in this article accommodation space 4S2. Further, by sliding the drawer portion 47 in the open position (f) to the standard position (e) (pushing the drawer portion 47 back toward the outer case main body), the internal space 4S of the drawer portion 47, that is, the article storage. The space 4S2 cannot be accessed. The outer case 4 itself can be locked at the drawing position (d) or the storage position (c) by the second locking means 7 or the first locking means 6, and by maintaining such a locked state, the drawer When the portion 47 is moved from the open position (f) to the standard position (e) or moved from the standard position (e) to the open position (f), the entire outer case 4 is suddenly moved relative to the inner case 3. The situation where it moves back and forth can be avoided. In addition, the situation where the drawer portion 47 moves further forward than the open position (f) and the situation where the drawer portion 47 moves further rearward than the standard position (e) indicate that the drawer slide rail mechanism 49 This can be avoided by a drawer stopper provided at an appropriate position.

  When the drawer portion 47 is positioned at the standard position (e) and the open position (f), and when moved between the standard position (e) and the open position (f), the drawer portion 47 is maintained at a constant height position. Accordingly, the drawer portion 47 that is not in contact with the floor surface F (carpet R) at the standard position (e) is positioned at the open position (f) or between the standard position (e) and the open position (f). Also when moving, it does not contact the floor surface F (carpet R) (see FIGS. 1 and 2).

  The sofa bed X of the present embodiment is transformed from the sofa form (a) to the bed form (b) by moving the outer case 4 from the storage position (c) to the drawing position (d). Then, in a state where substantially the entire top plate 33 of the inner case 3 and substantially the entire top plate 43 of the outer case 4 are exposed, the mattress M1 is placed on the top plate 43 of the outer case 4, and two backrests are placed. When the unfolded backrest mat M2 in which a continuous flat upward surface is formed by the mat block M21 is placed on the top plate 33 of the inner case 3, as shown in FIG. 2, the upward surface of the mattress M1 and the unfolded state The upper surface of the backrest mat M2 is a flat continuous surface, and a flat sleeping surface with cushioning properties can be formed above the outer case 4 and the inner case 3. Furthermore, in the sofa bed X of the present embodiment, a cushion body M3 having a plurality of (four in the illustrated example) cushion sheets M31 is deployed in a state where the plurality of cushion sheets M31 are arranged in the front-rear direction D. By placing the mattress M1 so as to cover the upward surface of the mattress M1 and the upward surface of the backrest mat M2 in the unfolded state, it is possible to form a bed surface with even better cushioning properties. As described above, the flat size of the cushion body M3 in the unfolded state is a flat bed surface continuous in the front-rear direction D formed by the upward surface of the backrest mat M2 in the unfolded state and the upward surface of the mattress M1. The entire size is set so as to be covered from above.

  And the sofa bed X which concerns on this embodiment is the load which acts on the inner case 3 among the loads which the sofa bed X whole receives including the weight etc. of the passenger using the sofa bed X made into the bed form (b). The load applied to the outer case 4 while being received by the floor surface F (specifically, the floor surface F via the first channel material C1) fixing the inner case 3 is the bottom surface of the outer case 4 (this embodiment) In the form, the slider 52 and the slide 52 are in contact with each other in preference to the floor surface F (carpet R) contacting the downward surface of the side plate 41 and the downward surface of the front plate 42 corresponding to the bottom surface of the outer case 4. Employs a structure that receives the engaging portion with the rail 51 and the floor surface F that fixes the slide rail 51 (specifically, the floor surface F that fixes the slide rail 51 via the second channel member C2). doing.

  On the other hand, in order to transform the sofa bed X according to the present embodiment from the bed form (b) to the sofa form (a), first, the mattress placed on the outer case 4 and the inner case 3 in the bed form (b). M1 and the like are temporarily retracted in an appropriate retreat space, and the entire top plate 43 of the outer case 4 and the entire top plate 33 of the inner case 3 are exposed. Next, the lock pin 61 of the second lock means 7 is moved from the lock position to the lock release position. This process is performed by the worker accessing the release button 613 provided on the pin holder 612 through the opening 435 formed around the top plate 43 of the outer case 4 where the lock pin 61 is provided. This can be performed by pressing the button 613.

  When the outer case 4 is unlocked by the second lock means 7 through such an operation, the outer case 4 is slidable backward by the slide mechanism 5. Therefore, if the worker gives the operating force to move the outer case 4 backward, the entire outer case 4 can be moved backward. That is, when an operator applies an operation force to push the outer case 4 backward, the slider 52 attached to the outer case 4 via the bracket 53 moves backward along the slide rail 51 fixed to the floor surface F. As a result, the outer case 4 to which the slider 52 is attached is also moved backward via the bracket 53 (see FIGS. 1 and 8).

  The sofa bed X according to the present embodiment includes a rear stopper 92 that restricts the rearward movement of the slider 52 when the outer case 4 located at the drawer position (d) is pushed back a predetermined distance. (See FIGS. 7 and 8). In the present embodiment, a rear stopper 92 is disposed at the rear end of the slide rail 51. The rear stopper 92 includes a portion (protruding portion) that protrudes upward from the upward surface of the slide rail 51, and a plurality of sliders 52 (first slider 52 (F), second slider 52 attached to each bracket 53. (S)), the rearmost slider 52 (second slider 52 (S)) comes into contact with the protruding portion, thereby restricting the backward movement of the slider 52. In the present embodiment, the rear stopper 92 is constituted by a crosspiece (rear crosspiece) arranged at a position continuous to the rear ends of the pair of left and right brackets 53.

  In the sofa bed X according to the present embodiment, the position of the outer case 4 in the state where the rearward movement of the slider 52 is restricted by the rear stopper 92 is set to the “accommodating position (c)”, and the outer case 4 is pulled out. It can be set as a sofa form (a) by positioning in a position (d). In the present embodiment, of the plurality of sliders 52 (the first slider 52 (F) and the second slider 52 (S)) attached to each bracket 53 in a state where the outer case 4 is positioned at the storage position (c). The second slider 52 (S) which is the rearmost slider 52 reaches the rear end or the vicinity of the rear end of the slide rail 51, and the first slider 52 (F) which is the relatively front slider 52 is the slide rail. 51, it reaches a predetermined area behind the front end 3 a of the inner case 3.

  Further, in the present embodiment, the outer case 4 is positioned at the accommodation position (c), and the lock pin 61 is switched from the unlocked position to the locked position, so that the lock pin 61 enters the pin insertion hole of the first lock means 6. The outer case 4 can be locked in the storage position (c) by the first locking means 6 (see FIG. 1).

  In this way, the sofa bed X of the present embodiment has the entire inner case 3 placed in the inner space (the inner case accommodating space 4S1) of the outer case 4 in a state where the outer case 4 has been moved to the accommodating position (c). It becomes the accommodated sofa form (a). In the sofa form (a), as described above, the mattress M1 is placed on the top plate 43 of the outer case 4, and the backrest mat M2, the cushion body M3, and the second cushion body M4 are placed on the mattress M1. (See FIG. 1).

  As described above, the sofa bed X according to the present embodiment can slide the slider 52 fixed to the outer case 4 that is the movable base 2 along the extending direction of the slide rail 51 provided on the floor surface F. By using the possible slide mechanism 5 to move the outer case 4 in the sofa form (a) forward with respect to the inner case 3 as the fixed base 1, the sofa form (a) to the bed form (b) In addition, the movable platform 2 in the bed configuration (b) is moved rearward with respect to the fixed platform 1 so that the bed configuration (b) can be transformed into the sofa configuration (a). And the sofa bed X which concerns on this embodiment is the structure which supports the outer case 4 whole by the part which made the slide rail 51 provided in the floor surface F, and the slider 52 fixed to the outer case 4 mutually engage. Therefore, the load of the outer case 4 itself and the load acting on the outer case 4 with use can be received by the floor surface F through the engaging portion of the slider 52 and the slide rail 51. It is possible to avoid a situation in which the load of the case 4 itself or the load acting on the outer case 4 as a load acts as a load on the inner case 3, thereby ensuring high load resistance that can withstand actual use. It is.

  In addition, according to the sofa bed X according to the present embodiment, it is possible to avoid a situation in which the outer case 4 comes into contact with the floor surface F (the rug R) during the deformation of the form, and the outer case 4 is outside the floor surface F (the rug R). It is possible to eliminate the problem that the movement locus of the case 4 appears as an abrasion. In addition, the sofa bed X according to the present embodiment supports the entire outer case 4 in a state where the entire outer case 4 is floated from the floor surface F (the rug R) by the engagement portion between the slide rail 51 and the slider 52 constituting the slide mechanism 5. Therefore, it is possible to avoid a situation in which the outer case 4 comes into contact with the floor surface F (the rug R) in the bed form (b), and the bed form (b) is transformed into the sofa form (a). In the state, it is possible to solve the problem that the ground trace of the outer case 4 appears on the floor surface F (the rug R). In particular, when the sofa bed X is installed on the floor surface F on which the carpet R or the like is laid, the movement trace of the outer case 4 and the ground trace are likely to appear on the rug R, but the sofa bed X according to the present embodiment is not provided. If used, the entire outer case 4 is supported by the engaging portion between the slide rail 51 and the slider 52 in a state where the entire outer case 4 is lifted from the rug R, thereby avoiding the problem that the movement trajectory and the ground trace appear on the rug R. .

  In particular, the sofa bed X according to the present embodiment sets the dimension (depth dimension) of the outer case 4 along the movement direction D to be larger than the depth dimension of the inner case 3, and moves in the inner space of the outer case 4. Along the direction D, the main space 4S1 in which the inner case 3 can be accommodated in the sofa form (a) and the sub space in which the inner case 3 is not accommodated in the sofa form (a) are partitioned. The configuration set in the article accommodation space 4S2 that can accommodate articles is adopted. As a result, a sub space 4S2 other than the main space 4S1 functioning as a housing space for the inner case 3 is secured in the inner space of the outer case 4, and the sub space 4S2 is effectively utilized as a space that can accommodate articles such as bedding. can do.

  Moreover, since the sofa bed X according to the present embodiment sets the internal space of the inner case 3 that is the fixed base 1 to the article accommodating space 3S that can accommodate articles such as bedding, each of the cases 3 and 4 Goods such as bedding can be organized using the internal space effectively. For example, the article storage spaces 3S and 4S2 of the cases 3 and 4 are the storage locations of the second cushion body 4 in the bed form (b), the comforters used in the bed form (b) but not used in the sofa form (a). It can be used as a storage place for blankets, sheets, and the like.

  In addition, the sofa bed X according to the present embodiment applies the one provided with a pair of left and right side plates 41 that define the side surface of the outer case 4 as the outer case 4 that is the movable base 2, and constitutes the slide mechanism 5. The slider 52 is disposed in an area partitioned by the pair of left and right side plates 41 in the width direction W in which the pair of left and right side plates 41 face each other, and the slide rail 51 that constitutes the slide mechanism 5 together with the slider 52 Accordingly, the slider 52 is arranged in the region in the center of the outer case 4 in the width direction W with respect to the side plate 41 of the outer case 4 that is the movable base 2. As a result, the slider 52 cannot be visually recognized from the outside as compared with the configuration in which the slider 52 is disposed outside the side surface of the outer case 4 in the width direction W. It has made to the configuration. Further, the slide rail 51 arranged in a predetermined region on the floor surface F according to the arrangement location of the slider 52 is also the center in the width direction W of the outer case 4 than the side plate 41 of the outer case 4 which is the movable base 2. Configuration in which the slide rail 51 is not visible from the outside or is difficult to see compared to the configuration in which the slide rail 51 is arranged outside the side surface of the outer case 4 in the width direction W. become. As a result, the entire slide mechanism 5 is arranged in a region on the center side in the width direction W of the outer case 4 with respect to the side plate 41 of the outer case 4 which is the movable base 2 at least in a plan view. The design of the entire sofa bed X is significantly improved as compared with the configuration in which the outer case 4 is disposed in an area outside the side plate 41 in the width direction W at least in a plan view.

  Furthermore, in the sofa bed X of the present embodiment, all or part of the top plate 33 of the inner case 3 that is the fixed base 1 and the top plate 43 of the outer case 4 that is the movable base 2 are used as the unit top plate 33U in the shape of a spider. Since the unit top plate 43U is configured, air is trapped in the internal space (article housing space 4S2, inner case housing space 4S1) of the outer case 4 and the inner space (article housing space 3S) of the inner case 3. Can be eliminated. In particular, in the sofa bed X of the present embodiment, the hook-like unit top plate 33U and the unit top plate 43U are configured to be detachable, so that the maintenance and inspection of the unit top plate 33U and the unit top plate 43U can be easily performed. It can be carried out.

  Moreover, since the sofa bed X of this embodiment is provided with the mattress M1 which forms a seat surface in a sofa form (a), and the backrest mat M2 which forms a backrest surface in the sofa form (a), In the form (a), a seating surface and a backrest surface excellent in cushioning properties can be formed. In addition, in the bed configuration (b), the mattress M1 forms the first bed surface, and the backrest mat M2 is arranged in the state where the backrest mat M2 is arranged along the mattress M1 along the moving direction D of the movable table 2. Since it is configured to form a second bed surface substantially flush with one bed surface, the mattress M1 and the backrest mat M2 used in the sofa form (a) are also used in the bed form (b) to provide cushioning properties. It is possible to form a flat bed surface excellent in Further, a difference is provided in the thickness dimension along the height direction of the sofa bed X of the mattress M1 and the backrest mat M2 in the bed form (b), and the upward difference of the fixed base 1 in the bed form (b) due to this thickness dimension difference. Since the step between the surface and the upward surface of the movable table 2 is eliminated, the upward surface of the fixed table 1 and the movable table 2 that always appear in the bed configuration (b) without using a dedicated step eliminating member. The level difference from the upward surface of can be eliminated.

  In addition, this invention is not limited to embodiment mentioned above. For example, in the above-described embodiment, the aspect in which the sofa bed X according to the present invention is installed in the guest room of the railway vehicle T is illustrated. The sofa bed according to the present invention can be arranged at the location. Moreover, it is possible to arrange and use the sofa bed according to the present invention at any place in a residential building.

  If the floor surface on which the sofa bed is installed is a floor surface on which carpets or other rugs are not laid, the present invention “supports the entire movable table in a state of being floated from the floor surface by the engagement portion of the slide rail and the slider”. The “floor surface” in the configuration is the floor surface itself.

  Of course, it is possible for the user of the sofa bed to perform the work of changing the sofa bed from the sofa form to the bed form and vice versa.

  Moreover, in the above-mentioned embodiment, the inner case 3 disposed relatively inside in the sofa form (a) is used as the fixed base 1, and the outer case 4 disposed outside the inner case 3 in the sofa form (a). Although the movable base 2 is illustrated as an example, it is also possible to use an inner case that is disposed relatively inside in the sofa form as a movable base and an outer case that is disposed outside the inner case in the sofa form as a fixed base. It is.

  Here, FIG. 11 is a schematic plan view of the sofa bed X according to this embodiment described above (for convenience of explanation, the movable table 2 (outer case 4), the fixed table 1 (inner case 3), the slide rail 51, and the slider 52. (1) shows the sofa bed X in the sofa form (a), and FIG. 2 (2) shows the sofa bed X in the bed form (b). For convenience of explanation, only the inner case 2 and the slider 52 are given different patterns.

  On the other hand, FIG. 12 is a diagram showing a configuration in which the inner case 3 is set as the movable base 2 and the outer case 4 is set as the fixed base 1 corresponding to FIG. FIG. 1A shows a sofa bed X in a sofa form (a) in which an outer case 4 that is a fixed base 1 and an inner case 3 that is a movable base 2 are nested, and FIG. Shows the sofa bed X in the bed form (b) in which the inner case 3 which is the movable base 2 is moved in a predetermined direction with respect to the outer case 4 which is the fixed base 1 rather than the sofa form (a). ing. The arrow D direction shown in FIG.11 and FIG.12 is when changing from a sofa form (a) to a bed form (b), or changing from a bed form (b) to a sofa form (a) (at the time of form deformation). This is the moving direction of the movable table 2.

  The sofa bed X shown in FIG. 11 is configured so that the entire inner case 3 that is the fixed base 1 is covered with the outer case 4 that is the movable base 2 in plan view in the sofa form (a). In the case of the sofa configuration (a), in a plan view, only a predetermined portion, not the entire inner case 3, is covered with the outer case 4, and a portion covered with the outer case 4 and a portion not covered are distinguished. It may be a thing. For example, in the case of the sofa form (a), only a predetermined portion on the rear end side, not the entire inner case 3, is covered with the outer case 4 in a plan view, or only a predetermined portion on the front end side, not the entire inner case 3. A configuration covered by the outer case 4 can be employed.

  If the inner case 3 is configured to be wholly or substantially entirely covered by the outer case 4 in the sofa form (a), the outer case will be described only when attention is paid to the relationship between the inner case 3 and the outer case 4 in the sofa form (a). Only the upward surface of 4 becomes a seat surface in the sofa form (a). Further, if the inner case 3 is configured to be distinguished from a portion covered by the outer case 4 and a portion not covered in the sofa form (a), the relationship between the inner case 3 and the outer case 4 in the sofa form (a) If only attention is paid, the upward surface of the outer case 4 and the upward surface of the inner case 3 that is not covered by the outer case 4 become the seat surface in the sofa configuration (a).

  In order to make the inner case 3 entirely or substantially entirely covered by the outer case 4 in the sofa form (a), the dimensions of the outer case 4 along the moving direction D of the movable table 2 are shown in FIG. Is set to be larger than the dimension of the inner case 3 along the movement direction D, or the dimension of the outer case 4 along the movement direction D of the movable base 2 and the movement direction D as shown in FIG. It is necessary to set the dimensions of the inner case 3 to be the same. FIG. 13 is a diagram showing a configuration in which the dimensions of the outer case 4 along the moving direction D of the movable base 2 and the dimensions of the inner case 3 along the moving direction D are set to be the same as FIG. FIG. 2A shows the sofa bed X in the sofa form (a), and FIG. 2B shows the sofa bed X in the bed form (b).

  On the other hand, as an example of a configuration in which the inner case 3 is distinguished from a portion covered by the outer case 4 and a portion not covered in the sofa form (a), as shown in FIG. Further, a configuration in which the dimension of the outer case 4 is set smaller than the dimension of the inner case 3 along the moving direction D can be given. FIG. 14 is a diagram showing a configuration in which the dimension of the outer case 4 along the moving direction D of the movable base 2 is set smaller than the dimension of the inner case 3 along the moving direction D, corresponding to FIG. FIG. 1A shows the sofa bed X in the sofa form (a), and FIG. 2B shows the sofa bed X in the bed form (b).

  The dimension of the outer case 4 along the moving direction D of the movable table 2 is set to be larger than the dimension of the inner case 3 along the moving direction D, or the outer case 4 along the moving direction D of the movable table 2. And the dimensions of the inner case 3 along the moving direction D are set to be the same, and a part of the inner case 3 is defined as a relative position of the inner case 3 and the outer case 4 in the sofa form (a). By selecting a relative position that is not covered by 4, it is possible to distinguish the inner case 3 from a portion covered by the outer case 4 and a portion not covered by the sofa form (a).

  When the inner case 3 is configured to be distinguished from the portion covered by the outer case 4 and the portion not covered in the sofa form (a), only the relationship between the inner case 3 and the outer case 4 in the sofa form (a). When paying attention, the upward surface of the outer case 4 and the upward surface of the inner case 3 that is not covered by the outer case 4 become the seat surface in the sofa form (a), and a step is generated on the seat surface. In this case, a mattress or the like in which a step having a shape corresponding to the step on the seat surface is formed on the downward surface may be set on the seat surface.

  It is preferable that the slide rail constituting the slide mechanism is disposed at a position where the user cannot visually recognize the sofa mechanism or the bed form, or at a position where it is difficult to visually recognize. For this purpose, the slide rail 51 is arranged at a position covered by the fixed base 1 and the movable base 2 in the sofa form (a) (see FIGS. 11 and 12), or only the fixed base 1 in the sofa form (a). The structure (refer FIG. 14) arrange | positioned in the position covered with may be employ | adopted. The configuration shown in FIG. 13 is a configuration in which the slide rail 51 is arranged at a position covered only by the fixed base 1 in the sofa form (a). However, the fixed base 1 and the movable base 2 are used in the sofa form (a). It is also possible to grasp that the slide rail 51 is arranged at the covered position.

  Such a configuration (a configuration in which the slide rail 51 is arranged at a position covered by the fixed base 1 and the movable base 2 in the sofa form (a), or a position covered only by the fixed base 1 in the sofa form (a). By adopting (configuration), it is possible to improve the design and avoid the situation where the user's feet are caught on the slide rail compared to the configuration in which the slide rail is exposed to the outside in the sofa form, Safety can be improved.

  Here, the end on the moving direction side of the movable base when transforming from the sofa form to the bed form in each part is the “front end” (corresponding to the “front end” in the above embodiment), and from the bed form in each part to the sofa form If the end on the moving direction side of the movable base at the time of deformation to the “base end” (corresponding to the “rear end” in the above embodiment) is “the slide rail is covered by the fixed base and the movable base in the sofa form” The configuration to be arranged at the position or the configuration to be arranged at the position covered only by the fixed base in the sofa form is “the slide rail has the tip of the movable rail in the sofa form or the base end of the slide rail of the fixed base. The same position as the tip farthest from the tip, or the tip (the tip of the movable stand or the tip of the fixed stand that is far from the slide rail base end in the sofa form) Can be regarded as from the front end) is a configuration "to place the slide rails so that the position of a predetermined size proximally.

  If the slide rail may be exposed in the sofa configuration, as shown in FIG. 15, the tip 51a of the slide rail 51 is the tip of the movable base 2 or the fixed base 1 in the sofa configuration (a). From the distal end of the slide rail 51 farther from the base end 51b (in the illustrated example, the distal end 3a of the inner case 3 which is the fixed base 1), the sofa form (a) to the bed form (b It is also possible to employ a configuration in which the slide rail 51 is disposed so as to be located far from the base end 51b of the slide rail 51 in the moving direction to). FIG. 15 shows that the slide rail 51 has a distal end 51a in the moving direction from the sofa form (a) to the bed form (b) of the movable base 2 more than the distal end 3a of the inner case 3 which is the fixed base 1. It is a figure which shows the structure which has arrange | positioned the slide rail 51 so that it may become a position far from the base end 51b corresponding to FIG. 14, and the same figure (1) shows the sofa bed X of a sofa form (a), (2) shows the sofa bed X in the bed form (b).

  Here, when adopting a configuration in which the area where the inner case is covered by the outer case is completely or almost completely absent (for example, the sofa bed X shown in FIGS. 11 and 12), the inner case is Compared to a configuration in which an area covered by the outer case is present (for example, the sofa bed X shown in FIGS. 13 and 14), the size of the bed surface along the movement direction D can be secured widely. That is, both the outer case 4 shown in FIG. 11 and the outer case 4 shown in FIG. 14 have the same dimension along the moving direction D of the movable base 2, and the inner case 3 shown in FIG. 11 and the inner case shown in FIG. Although the case 3 has the same dimension along the moving direction D of the movable base 2, the sofa bed X shown in FIG. 11 is covered by the outer case 4 in the bed configuration (b). On the other hand, the sofa bed X shown in FIG. 14 has a configuration in which the inner case 3 is covered with the outer case 4 in the bed configuration (b). Therefore, in the bed configuration (b), the size of the bed surface along the moving direction D is larger in the sofa bed X shown in FIG. 11 than in the sofa bed X shown in FIG.

  The sofa bed X shown in FIG. 11 and the sofa bed X shown in FIG. 14 are different in that the dimension along the moving direction D of the movable base 2 is different between the inner case 3 and the outer case 4, and the slide rail 51 is used by the user. In order to make it invisible or difficult to visually recognize, the distal end 51a of the slide rail 51 is the one farthest from the proximal end 51b of the slide rail 51 among the distal end of the movable base or the distal end of the fixed base in the sofa form (a). In order to be at the same position or substantially the same position as the tip (the tip 4a of the outer case 4 which is the movable base 2 in FIG. 11 and the tip 3a of the inner case 3 which is the fixed base 1 in FIG. 14), The configuration is the same in that the slide rail 51 is disposed and the above points. On the other hand, in the sofa bed X shown in FIG. 11 and the sofa bed X shown in FIG. 14, the fixed base 1 is the inner case 3 or the outer case 4, the movable base 2 is the outer case 4, or the inner case 3. It is different in that it is. As described above, the size of the bed surface along the moving direction D is different in the bed configuration (b) based on the difference in the configuration shown in FIGS. 11 and 14.

  Accordingly, the bed configuration (b) is configured so that the area in which the inner case 3 is covered by the outer case 4 in the bed configuration (b) is completely or completely absent in the configuration of the sofa bed X shown in FIG. ), The size of the bed surface along the moving direction D is the same as that of the sofa bed X shown in FIG. 11, as shown in FIG. 15, the tip 51 a of the slide rail 51 is the fixed base 1. The structure which arrange | positions the slide rail 51 so that it may become a position far from the base end 51b of the slide rail 51 in the moving direction from the sofa form (a) of the movable stand 2 to a bed form (b) rather than the front-end | tip 3a of the case 3. Adopt it.

  In addition, if the slide rail may be exposed in the sofa form and the bed form, the slider is divided by the pair of left and right side plates in the width direction in which the pair of left and right side plates face each other. It is also possible to employ a configuration in which the slide rail is arranged in a predetermined area on the floor surface in accordance with the arrangement position of the slider.

  Further, the number of sliders for one slide rail is not limited to “2”, and may be one or may be three or more. Here, in the sofa bed of the present invention configured to support the entire movable base in a state of being floated from the floor surface by the engaging portions of the slide rail and the slider, the number of engaging portions of the slide rail and the slider is large. Thus, it is possible to reduce the load acting on each engaging portion when the entire movable base is supported in a state where it is floated from the floor surface. In addition, if it is the structure which engages one slider with one slide rail, it is possible to ensure the engaging part with respect to a slide rail in a wide area | region along the extending direction (moving direction of a movable stand) of a slide rail. If a slider that can secure a plurality of parts separated along the extending direction of the slide rail, even if it is a single slider as a part, even if it is one slider as a part, It is possible to maintain a good support state.

  The number of slide rails is not limited to “two”, and it is also possible to adopt a configuration in which one or three or more slide rails are arranged in a direction perpendicular to the moving direction of the movable base (width direction W in the above-described embodiment). is there.

  In the above-described embodiment, the slide rail 51 and the fixing base 1 are illustrated as being fixed to the floor surface F through the bases of the channel materials C1, C2 and the like that are fixed to the floor surface F in advance. The fixing base may be directly fixed to the floor surface. A base other than the channel material can also be applied as the base, and the base of the slide rail and the fixed base may be a common base.

  The specific shape and structure of the slide rail and slider constituting the slide mechanism, in particular, the shape and structure of the engaging portion are not limited to the shape and structure described in the above embodiment, and can be changed as appropriate.

  In the above-described embodiment, the dimension along the movement direction D of the outer case 4 that is the movable base 2 is set to be larger than the dimension along the movement direction D of the inner case 3 that is the fixed base 1. Partitioning the internal space of the outer case 4 along the moving direction D into a main space that can accommodate the inner case 3 in the sofa form (a) and a sub-space in which the inner case 3 is not accommodated in the sofa form (a); Although the configuration in which the sub space is set to the article storage space 4S2 that can store articles other than the inner case 3 is illustrated, a configuration in which the sub space is not set to the article storage space may be employed. Further, when the sub space is set as the article storage space, in the above-described embodiment, the space corresponding to the internal space 4S of the drawer portion 47 that can be pulled out with respect to the outer case main body is included in the sub space. The configuration set in the space 4S2 is exemplified, but when the outer case is not provided with the drawer portion, any one of the top plate, the front plate, and the side plate of the outer case is removed by an appropriate process, or the arrangement posture is changed. It is configured so that the article can be accommodated in the subspace set in the article accommodation space by changing (changing from an arrangement attitude that makes access to the subspace difficult or impossible to an arrangement attitude that allows access to the subspace). Is also possible.

  In the above-described embodiment, the top plate 33 of the fixed base 1 and the top plate 43 of the movable base 2 are all or partly illustrated by the hook-like unit top board 33U and the unit top board 43U. The unit top plate may be removable with respect to the entire unit, or may be non-removable. The number of unit top plates is not limited. For example, as the fixed base or the movable base, one having one unit top plate or each having a plurality of unit top plates is applied. Alternatively, one of the fixed base and the movable base may be provided with one unit top plate, and the other base may be provided with a plurality of unit top plates.

  Note that the top plate of the fixed table and the top plate of the movable table can be configured without using the cage-shaped unit top plate.

  In the above-described embodiment, the direction in which the movable base 2 is moved when the sofa form (a) is deformed to the bed form (b) is set to a direction in which the movable base 2 is pulled out with respect to the fixed base 1. The mode in which the movable table 2 is moved in the direction from the form (b) to the sofa form (a) is set to the direction in which the movable table 2 is pushed back to the fixed table 1, but the embodiment is not limited thereto. The direction of moving the movable base when transforming from the sofa form to the bed form is set to the direction of pushing the movable base against the fixed base, and the direction of moving the movable base when transforming from the bed form to the sofa form, It is also possible to set the direction in which the movable base is pulled back to the fixed base.

  Also, a locking means (corresponding to the “first locking means 6” in the above-described embodiment) for locking the movable base in the sofa form in which the fixed base and the movable base are nested, and the movable base is more fixed than in the sofa form. The specific mechanism and structure of the means for locking the movable base in the form of the bed moved in one predetermined direction with respect to the base (corresponding to the “second locking means 7” in the above embodiment) is not particularly limited, An appropriate one can be adopted.

  In addition, a stopper that restricts further movement of the movable base in the same direction at the time of deformation from the sofa shape to the bed shape or from the bed shape to the sofa shape (the “front stopper 91” in the above embodiment, The specific mechanism and structure of “rear stopper 92”) are not particularly limited, and an appropriate one can be adopted.

  Furthermore, the portion to which the user gives operating force when the sofa form is changed to the bed form or when the bed form is changed to the sofa form (“puller 8 (digger puller)” in the above embodiment). The shape and the arrangement location can be changed as appropriate.

  Moreover, you may employ | adopt the structure which implement | achieves the movement of the movable stand with respect to the fixed stand at the time of form deformation not under manual control but under automatic control.

  The size, shape, deformation specifications, etc. of the mattress, the backrest mat, or each cushion body can be appropriately changed.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Fixed stand 2 ... Movable stand 3 ... Inner case 33 ... Top plate 33U ... Unit top plate 4 ... Outer case 41 ... Side plate 43 ... Top plate 43U ... Unit top plate 4S2 ... Article accommodation space (a) ... Sofa form (b ) ... Bed type M1 ... Mattress M2 ... Backrest mat F ... Floor X ... Sofa bed

Claims (7)

A fixed base fixed to the floor, and a movable base movable with respect to the fixed base, and a sofa form in which the fixed base and the movable base are nested, and the movable base is more than the sofa form. It is a sofa bed that can be deformed between the bed form moved in one predetermined direction with respect to the fixed base,
A slide rail provided on the floor and extending along a moving direction of the movable table; a slider fixed to the movable table and slidable along the slide rail in a state of being engaged with the slide rail; Equipped with a slide mechanism,
The sofa bed is configured to support the entire movable base in a state of being floated from the floor surface by the engaging portion of the slide rail and the slider. 2. The sofa bed according to claim 1, wherein the fixed base is an inner case disposed relatively inside in the sofa form, and the movable base is an outer case disposed outside the inner case in the sofa form. . The dimension along the moving direction of the outer case that is the movable base is set larger than the dimension along the moving direction of the inner case that is the fixed base,
The internal space of the outer case is partitioned along the moving direction into a main space that can accommodate the inner case in the sofa form and a sub space in which the inner case is not accommodated in the sofa form. The sofa bed according to claim 2, wherein the sofa bed is set in an article accommodation space that can accommodate articles other than the inner case. The movable table is provided with a pair of left and right side plates that define the side surface of the movable table,
The slider is disposed in a region partitioned by the pair of left and right side plates in the width direction in which the pair of left and right side plates face each other,
The sofa bed in any one of Claim 1 thru | or 3 which has arrange | positioned the said slide rail in the predetermined area | region on the said floor surface according to the arrangement | positioning location of the said slider. The sofa bed in any one of Claims 1 thru | or 4 which has arrange | positioned the said slide rail in the position covered with the said fixed stand or both the said fixed stand and the said movable stand in the said sofa form. The sofa bed according to any one of claims 1 to 5, wherein all or a part of each top plate of the fixed base and the movable base is constituted by a cocoon-like unit top plate. A mattress that forms a seating surface in the sofa configuration and a first bed surface in the bed configuration, and a backrest surface in the sofa configuration and is arranged side by side on the mattress along the moving direction in the bed configuration. And a backrest mat that forms a second bed surface that is substantially flush with the first bed surface in a state where the mattress and the backrest mat in the bed form are different in thickness dimension along the height direction. The sofa bed according to any one of claims 1 to 6, wherein a step difference between the upward surface of the fixed base and the upward surface of the movable base in the bed form is filled by the thickness dimension difference.

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