JP2019002181A - Slope installation structure - Google Patents

Abstract

To provide a slope installation structure capable of installing a slope in secure state, with a simple structure and avoiding deterioration of the appearance around the doorway foot.SOLUTION: In a building, the floor part 33 of the corridor 12 is provided at a position higher than the floor part 26 of the entrance 11 and the floor part 27 of the entrance pouch 18. A doorway foot 41 is provided at a step portion 39 between the floor portion 26 of the entrance 11 and the floor portion 33 of the corridor 12. The doorway foot 41 is detachable from a predetermined position where a part of which covers the end portion 33b of the floor portion 33, and a part of which is removed from the predetermined position so as the end portion 33b to be exposed. The slope member 45 forms a slope by being obliquely bridged between the floor portion 33 of the corridor 12 and the floor portion 27 of the entrance pouch 18. The slope member 45 is provided with a floor mounting portion 51 detachably attached to the end portion 33b of the floor portion 33 at its upper end portion, and at its lower end portion a floor engaging portion 52 is provided to be engaged with the floor portion 27.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a slope installation structure that forms a slope by obliquely bridging a plate-like slope member between a lower floor portion and an upper floor portion.

  In a building such as a house, since there is a step between the floor of the entrance and the floor of the hallway, the above step becomes an obstacle when entering and exiting from the entrance with a wheelchair, for example. Therefore, in such a case, going in and out using a slope connecting the floor of the entrance and the floor of the hallway is performed.

  Patent Document 1 discloses a technique for forming a slope by obliquely spanning a panel member between an entrance floor and a corridor floor. In the technique of this Patent Document 1, a storage space for storing a panel member is provided under the floor of the corridor floor, and when the panel member is used, the panel member is drawn from the storage space and used as a slope.

  More specifically, the storage space is provided with a slide member that can be taken in and out of the space, and the panel member is connected to the slide member via a connecting member. It is provided in the state. The connecting member has a function of shifting the panel member on the slide member between the horizontal state and the inclined state, so that the panel member is in the horizontal state when stored, and the panel member is inclined when the slope is formed. It has become.

JP 2008-163732 A

  By the way, in the slope structure of the said patent document 1, in addition to the panel member which forms a slope, the slide member connected with the panel member, a connection member, etc. are provided. For this reason, the configuration is complicated and there is a risk of increasing costs.

  It is also conceivable that the slope is formed only by the panel member without the slide member or the connecting member. In this case, for example, it is conceivable that the panel member is bridged to each floor portion by placing the upper end portion and the lower end portion of the panel member on the hallway floor portion and the entrance floor portion, respectively. However, in that case, it may be difficult to install the panel member in a stable state, for example, the panel member is displaced.

  Further, since a stepped portion between the entrance floor portion and the corridor floor portion is generally provided with a raised ridge, it is conceivable to attach the upper end portion of the panel member to the raised ridge. However, in this case, since it is necessary to provide an attachment portion for attaching the panel member to the raised ridge, the appearance around the raised ridge may be impaired.

  The present invention has been made in view of the above circumstances, and provides a slope installation structure that can install a slope in a stable state while avoiding the appearance of the vicinity of a raised ridge with a simple configuration. This is the main purpose.

  In order to solve the above problems, the slope installation structure of the first invention is a plate-like slope member that forms a slope by being bridged obliquely between a lower floor portion and an upper floor portion provided at different heights. A step installation portion between the lower floor portion and the upper floor portion is provided with a rising hook that covers an end portion of the upper floor portion, and at least a part of the rising hook is the end portion. The exposed portion exposed by the retraction is provided with a mounted portion to which a mounting portion provided on the upper end portion of the slope member is attached. .

  According to the present invention, at least a part of the rising ridge can be retracted from a predetermined position covering the end of the upper floor portion, and the attached portion is provided in the exposed portion exposed by the retraction. And the attachment part provided in the upper end part of the slope member is attached to the to-be-attached part. In this case, the slope member is installed in a stable state as compared with the case where the slope member is bridged between the floor portions by simply placing the upper end portion and the lower end portion of the slope member on the upper floor portion and the lower floor portion. Can do. Moreover, in such a slope installation structure, since the slope member can be bridged between floor portions in a stable state without providing a slide member or the like as in the conventional technique, the configuration can be simplified. Furthermore, since the attached portion is usually covered with the raised ridge, it is possible to avoid the appearance of the vicinity of the raised ridge from being impaired by the attached portion. Therefore, it is possible to install the slope in a stable state while avoiding the appearance of the vicinity of the raised ridge with a simple configuration.

  In the slope installation structure of the second invention, in the first invention, the attached portion is the end portion of the upper floor portion, and the attachment portion has an insertion groove portion into which the end portion is inserted, It is attached to the said end part by inserting the said end part in an insertion groove part, It is characterized by the above-mentioned.

  According to the present invention, the attachment portion of the slope member has the insertion groove portion. In this case, the attachment portion can be attached to the end portion by a simple operation such as inserting the end portion of the upper floor portion into the insertion groove portion. Further, since the attachment portion is attached to the end portion (attached portion) of the upper floor portion, it is not necessary to separately provide the attached portion, and the configuration can be simplified.

  The slope installation structure of the third invention is characterized in that, in the first or second invention, the lower floor portion is provided with a restricting portion for restricting a displacement of a lower end portion of the slope member. .

  According to the present invention, since the displacement of the lower end portion of the slope member is restricted by the restriction portion provided on the lower floor portion, the slope member can be installed in a more stable state.

  The slope installation structure of the fourth invention is the slope installation structure according to any one of the first to third inventions, wherein the lower floor portion is an interstitial floor straddling the outside of the building across the building entrance, and the slope member is A bridge is provided between the lower floor portion and the upper floor portion through a building entrance.

  According to the present invention, since the slope member is bridged obliquely between the lower floor portion and the upper floor portion through the building entrance, the length of the slope member can be increased. Thereby, since the inclination of a slope member can be loosened, it becomes possible to reduce the burden of the user who moves on a slope.

  Moreover, when this invention is applied to 3rd invention, since a control part is provided in an outdoor side rather than a building entrance in a lower floor part, it can avoid that the appearance of an indoor floor is impaired by a control part. .

  In the slope installation structure of the fifth invention, in any one of the first to fourth inventions, a storage space capable of storing the slope member is formed under the floor of the upper floor portion, and the storage space is An opening is provided in the floor space of the lower floor portion through an opening provided in the stepped portion, and an extension portion extending downward from the upper floor portion is provided in the rising ridge, and the storage space A support portion that supports the slope member in a state of facing the lower surface of the upper floor portion, and the support portion supports the slope member at the same height as the extension portion. And

  According to the present invention, when the slope member is not used, the slope member can be stored in the storage space formed under the floor of the upper floor portion. Further, when the slope member is used, the slope member can be drawn out to the space above the floor of the lower floor through the opening. Thereby, the usability of the slope member can be improved.

  In addition, the slope member is supported by the support portion in the storage space, and is disposed at the same height as the extending portion of the raised heel in the support state. In this case, since the slope member is covered with the extended portion from the floor space side of the lower floor portion, it is possible to prevent the slope member from being seen from the floor space side.

  In the slope installation structure of the sixth invention, in any one of the first to fifth inventions, a storage space in which the slope member can be stored is formed under the floor of the upper floor portion. An opening is provided in the floor space of the lower floor through an opening provided in the stepped portion, and a closing plate for closing the opening is provided integrally with the rising ridge. And

  According to the present invention, since the storage space is provided under the floor of the upper floor portion, the same effect as in the fifth aspect of the invention can be obtained. Moreover, since the closing plate which closes the opening part of a storage space is integrally provided in the rising hook, it can prevent reliably that a slope member is seen through an opening part at the time of accommodation of a slope member.

  In the slope installation structure of a seventh invention, in the fifth or sixth invention, a first rotating body is attached to a lower surface of the slope member at a position near the attachment portion in a slope inclination direction, and the slope member is The mounting portion is stored sideways in the storage space so that the mounting portion is located on the back side of the storage space with respect to the slope member, and the first rotating body is placed on the lower surface of the storage space in the storage state. A second rotating body that supports the slope member together with the first rotating body from below is attached to a lower surface of the storage space, and the second rotating body includes a depth of the first rotating body and the storage space. The first rotating body and the second rotating body are arranged at positions not lined up in the direction so that they rotate when the slope member is pulled out from the storage space through the opening. It is characterized in that is.

  According to the present invention, when the slope member is pulled out from the storage space to the floor space of the lower floor portion, the first rotating body and the second rotating body that support the slope member rotate from below, so that the slope member is pulled out smoothly. be able to. Thereby, the drawer operation of the slope member can be easily performed.

  Further, since the slope member is stored in the storage space so that the attachment portion is on the back side, when the slope member is pulled out, the attachment portion faces the step portion side. Further, when the slope member is pulled out from the storage space, the slope member falls off from the second rotating body, so that the slope member is supported only by the first rotating body attached to the lower surface of the slope member. Here, since the 1st rotary body is arrange | positioned near the attachment part in the slope member, in this case, a slope member will be in the inclination state which inclines upward toward the attachment part side (in other words, level | step-difference part side). Since this inclined state is a state (or the same state) close to the inclined state at the time of slope formation, in this case, the installation work of the slope member, such as making it easy to attach the attachment part of the slope member to the attached part, It becomes possible to make it easy.

  According to a slope installation structure of an eighth invention, in the seventh invention, the first rotating body is placed on a floor surface of the lower floor portion and supports the slope member from below in a slope formation state by the slope member. It is characterized by doing.

  According to the present invention, in a slope forming state in which the slope member is bridged between the lower floor portion and the upper floor portion, the slope member is supported from below by the rotating body. Thereby, a slope member can be installed in the stable state. Moreover, the above-mentioned effect can be obtained without increasing the number of parts by using the rotating body used when the slope member is taken in and out of the storage space as the support portion of the slope member.

  In the slope installation structure of the ninth invention according to any one of the first to eighth inventions, the stepped portion is provided with a hook support portion for supporting the rising hook from below, and the rising hook has a longitudinal length thereof. A plurality of divided hooks divided in a direction, and the plurality of divided hooks include a pair of first hooks provided on both ends of the raised hook and fixed to the hook support, and A second collar part provided between the first collar parts and not fixed to the collar support part is included, and the second collar part is located between the first collar parts as the predetermined position. It is possible to evacuate.

  According to the present invention, the rising collar is divided into a pair of first collar parts provided at both ends in the longitudinal direction and a second collar part provided between the first collar parts. In this case, while the 1st collar part is being fixed on the collar support part, the 2nd collar part is non-fixed on the collar support part, so that the 2nd collar part of each first collar part It is possible to evacuate from between. In this case, a part of the rising hook can be retracted without affecting the joints with the walls at both ends of the rising hook.

  According to a slope installation structure of a tenth invention, in the ninth invention, each of the first flanges has a protruding portion that protrudes toward each other at a position separated from the end portion of the upper floor portion, The two flanges have entry portions that enter into the separation portion between the end portion and the protruding portion on both end sides, and the second flange portion is inserted into the separation portion by the entry of each entry portion. It is detachably attached to the predetermined position.

  According to the present invention, the second collar part has a pair of entry parts that enter the separated part between the protruding part of each first collar part and the end part of the upper floor part, and the entry of each entry part. Is detachable from the predetermined position (and thus can be retracted). In this case, since the protruding part of the first hook part and the entering part of the second hook part, that is, the structure that can be attached / detached by the rising hook itself is realized, a separate attachment member is provided to make the rising hook removable. There is no need to do so, and the configuration can be simplified.

  According to an eleventh aspect of the present invention, in the slope installation structure according to any one of the first to tenth aspects, the lower floor portion includes a dirt floor straddling the building entrance and exits indoors and outdoors. The slope member extends in a direction intersecting the width direction of the entrance and exit, and the slope member has a shape extending in an arc shape in plan view from the upper floor portion to the lower floor portion through the building entrance and exit at the time of slope formation. Features.

  According to the present invention, since the slope member is formed in an arc shape, even when the rising ridge extends in a direction intersecting the width direction of the building entrance, the slope member passes through the building entrance to the lower floor portion and the upper floor portion. It can be bridged.

The top view which shows the floor plan around the entrance in a building. It is a longitudinal cross-sectional view which shows the structure around the floor part of an entrance and a hallway, (a) has shown the accommodation state of the slope member, (b) has shown the slope formation state by a slope member. (A) is a perspective view which shows the floor part periphery of an entrance and a corridor, (b) is a perspective view which shows the state which removed a part of the gouge in (a). The longitudinal cross-sectional view which expands and shows the slope formation state by a slope member. The perspective view which shows the floor part vicinity of the entrance and hallway in other embodiment. The longitudinal cross-sectional view which shows the attachment structure of the upper end part of the slope member in other embodiment. The top view which shows the floor plan vicinity of the entrance of the building in other embodiment. The top view of the slope member in other embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a floor plan around the entrance of a building. In the present embodiment, it is assumed that a resident who uses a wheelchair lives in the building.

  As shown in FIG. 1, a building 10 such as a house is provided with an entrance 11, a corridor 12, and living rooms 13 and 14 as indoor spaces. The entrance 11 is provided with an entrance 16 as a building entrance, and an entrance door 17 is provided at the entrance 16. The entrance door 17 consists of a hinged door, for example. The entrance door 17 may be a sliding door. In addition, an entrance porch 18 is provided adjacent to the outdoor side of the entrance 11. The entrance porch 18 communicates with the entrance 11 through the entrance entrance 16. As a result, it is possible to enter and exit the building 10 through the entrance door 16 from the entrance porch 18 (and hence the outdoors).

  The hallway 12 is provided adjacent to the entrance 11. The corridor 12 is provided on the opposite side of the entrance 16 with the entrance 11 in between. The living rooms 13 and 14 are provided on both sides of the hallway 12. The living room 13 is partitioned from the hallway 12 by a partition wall 21, and the living room 14 is partitioned from the hallway 12 by a partition wall 22. The partition wall 21 is provided with an entrance 24 for entering and exiting the living room 13 from the corridor 12, and a door 25 is provided at the entrance 24.

  Next, the configuration around the floor of the entrance 11 and the hallway 12 will be described with reference to FIG. FIG. 2 is a vertical cross-sectional view showing the configuration around the floor of the entrance 11 and the hallway 12. 2A shows the storage state of the slope member 45, and FIG. 2B shows the slope formation state by the slope member 45. FIG. 2A and 2B correspond to a cross-sectional view taken along line AA in FIG.

  As shown in FIG. 2 (a), the floor portion 26 of the entrance 11 is formed of a soil concrete 28 placed on the ground and a mortar layer 29 provided on the soil concrete 28. The floor portion 26 is a so-called dirt floor, and the floor surface 26 a is formed by a mortar layer 29.

  Similar to the floor portion 26 of the entrance 11, the floor portion 27 of the entrance porch 18 is formed by dirt concrete 28 placed on the ground and a mortar layer 29 provided thereon. Therefore, the floor portion 27 is also a dirt floor like the floor portion 26 of the entrance 11, and the floor surface 27 a is formed by the mortar layer 29.

  The floor portion 26 of the entrance 11 and the floor portion 27 of the entrance porch 18 are provided continuously with each other. A foundation 31 (cloth foundation) is provided along the boundary portion between the floor portions 26 and 27, and the soil concrete 28 of the floor portions 26 and 27 is disposed on both sides of the foundation 31. ing. And the mortar layer 29 is provided continuously ranging over the upper surface of these each interstitial concrete 28, and the upper surface of the foundation 31. FIG. In this case, the floor portion 26 of the entrance 11 and the floor portion 27 of the entrance porch 18 constitute a “lower floor portion”. Further, the entrance 11 and the entrance porch 18 correspond to “a space above the floor of the lower floor”.

  Specifically, a step 32 is formed along the entrance 16 on the upper surface of the mortar layer 29 (the floor of the lower floor). By this stepped portion 32, the floor surface 26 a of the entrance 11 is set at a position slightly higher than the floor surface 27 a of the entrance porch 18. Thereby, it is suppressed that rainwater permeates along the floor surface from the entrance porch 18 side (outdoor side) to the entrance 11 side.

  The floor 33 of the hallway 12 is provided at a position higher than the floor 26 of the entrance 11. The floor portion 33 of the corridor 12 includes a floor base material 34 and a floor finishing material 35 laid on the floor base material 34. The floor base material 34 is made of, for example, particle board, and the floor finishing material 35 is made of, for example, flooring. A floor surface 33 a of the hallway 12 is formed by the upper surface of the floor finish 35. A foundation 36 (cloth foundation) is provided below the floor portion 33, and the floor portion 33 is supported from below by the foundation 36. The floor portion 33 of the hallway 12 corresponds to the upper floor portion.

  On the step portion 39 between the floor portion 26 of the entrance 11 and the floor portion 33 of the hallway 12, a rising fence 41 (entrance fence) is provided. The rising fence 41 is formed of a wooden square bar, and is provided along the end portion 33 b (specifically, the end portion 33 b on the entrance 11 side) of the floor portion 33 of the hallway 12. Thereby, the end 33b of the floor portion 33 is covered and hidden from the entrance 11 side by the rising rod 41. Further, the rising rod 41 is disposed with the upper surface thereof at the same height as the floor surface 33a of the floor portion 33, and a part of the rising rod 41 extends below the floor portion 33 in the arrangement state to form an extending portion 42. Yes.

  An underfloor space 43 is formed below the floor portion 33 of the hallway 12, that is, below the floor portion 33. This underfloor space 43 is a storage space 43 for storing a slope member 45 described later. Under the storage space 43, soil concrete 28 and a mortar layer 29 that form the floor portion 26 of the entrance 11 extend. That is, the interstitial concrete 28 and the mortar layer 29 that form the floor portion 26 are provided across the entrance 11 and the storage space 43, and the lower surface 43 a of the storage space 43 is formed by the mortar layer 29. Therefore, the lower surface 43a of the storage space 43 and the floor surface 26a of the entrance 11 are continuously formed in a flush state. The storage space 43 opens to the entrance 11 through an opening 44 provided in the step portion 39.

  A slope member 45 is stored in the storage space 43. The slope member 45 forms a slope by being bridged diagonally between the floor portion 27 of the entrance porch 18 and the floor portion 33 of the hallway 12 (see FIG. 2B). In the building 10, a slope is formed by the slope member 45, so that a wheelchair user can enter and exit through the slope when entering and exiting the building 10 through the entrance 16. Hereinafter, the slope member 45 will be described.

  As shown in FIG. 2B, the slope member 45 is installed so as to be obliquely bridged between the floor portion 27 of the entrance porch 18 and the floor portion 33 of the hallway 12. In the present embodiment, when the slope member 45 is installed, the upper end side of the slope member 45 is attached to the end portion 33 b of the floor portion 33. The end portion 33b is usually covered and hidden from the entrance 11 side by the rising hook 41 (see FIG. 2A). Therefore, in the present embodiment, a part of the rising ridge 41 is detachable, and by removing the part, the end 33b of the floor 33 is exposed, and the upper end of the slope member 45 is exposed to the exposed end 33b. I try to attach the side. Therefore, in the following, prior to describing the slope member 45, a configuration in which a part of the rising rod 41 can be attached and detached will be described with reference to FIG. 3A is a perspective view showing the periphery of the floor portion of the entrance 11 and the hallway 12, and FIG. 3B shows a state where a part of the eaves 41 is removed in FIG. In addition, the code | symbol 49 in FIG. 3 is the baseboard 49 which covers the boundary of the partition wall 21 and the floor part 33. FIG.

  As shown in FIG. 3 (a), the rising hook 41 is provided in a state of being placed on a base portion 47 provided therebelow. The base portions 47 are respectively disposed on both ends in the longitudinal direction of the rising collar 41 and extend along the longitudinal direction. The foundation 47 is constituted by a fabric foundation. Specifically, the portion of the cloth foundation that rises above the floor 26 of the entrance 11 is the foundation 47. Note that the foundation 47 is not necessarily formed of a cloth foundation, and may be formed, for example, by installing a concrete block on the floor 26. The base portion 47 corresponds to the heel support portion.

  The rising rod 41 is provided across the base portions 47. The rising collar 41 is divided into a plurality of parts in the longitudinal direction thereof, thereby having a pair of fixing parts 41a provided at both ends in the same direction and an attaching / detaching part 41b provided between the fixing parts 41a. doing. Each fixing portion 41 a is placed on the base portion 47 and fixed to the base portion 47. In the fixed state, each base portion 47 has an extending portion 47a that extends from the upper fixing portion 41a toward the sides closer to each other. The detachable portion 41b is arranged in a state of straddling the extended portion 47a of each of the foundation portions 47, and is not fixed to each of the foundation portions 47 in the arrangement state. In addition, each fixing | fixed part 41a is equivalent to a 1st collar part, respectively, and the attachment or detachment part 41b is equivalent to a 2nd collar part.

  Each fixing portion 41a has a protruding portion 46 that protrudes toward each other (in other words, toward the detachable portion 41b) at a position spaced from the end portion 33b of the floor portion 33. On the other hand, the attaching / detaching portion 41b has an intrusion portion 48 that enters the separation portion 53 between the protruding portion 46 of the fixing portion 41a and the end portion 33b of the floor portion 33 on both ends in the longitudinal direction. Since each of these entering portions 48 enters the separating portion 53, the attaching / detaching portion 41b is detachably provided between the fixing portions 41a. In this case, the space between the fixed portions 41 a corresponds to a predetermined position covering the end portion 33 b of the floor portion 33. The attaching / detaching portion 41b is attached by fitting each protruding portion 46 into the separating portion 53 from above between each fixing portion 41a. And the attaching / detaching part 41b is removed from between the fixing parts 41a by being lifted upward from between the fixing parts 41a (see FIG. 3B). In the state where the detachable portion 41b is removed, the end portion 33b of the floor portion 33 is exposed to the entrance 11 side.

  More specifically, the protrusions 46 and the entry portions 48 are configured such that the opposing surfaces 46a and 48a that face each other in the protrusions 46 and the entry portions 48 are inclined with respect to a surface (vertical surface) orthogonal to the longitudinal direction of the rising rod 41. Inclined surface (vertical surface). Each of the opposing surfaces 46a and 48a is formed over the entire region in the direction orthogonal to the longitudinal direction of the raised ridge 41 (in plan view), and the fixing portion 41a and the detachable portion 41b are arranged as approaching the end portion 33b of the floor portion 33. It is inclined to shift to the fixed portion 41a side in the arrangement direction.

  In the state where the detachable portion 41 b is removed, an opening is formed between the floor portion 26 of the entrance 11 and the floor portion 33 (end portion 33 b) of the hallway 12 in the stepped portion 39. This opening is the opening 44 of the storage space 43 described above. The opening 44 is formed between the base portions 47 that are separated from each other.

  Next, the installation configuration of the slope member 45 will be described with reference to FIG. FIG. 4 is an enlarged longitudinal sectional view showing a slope forming state by the slope member 45.

  As shown in FIG. 4, the slope member 45 is formed in a rectangular shape by a metal plate material, and specifically in a rectangular plate shape (see also FIG. 1). The slope member 45 is installed so as to be obliquely bridged between the floor portion 27 of the entrance porch 18 and the floor portion 33 of the corridor 12 with the longitudinal direction as an inclination direction. In this case, the slope member 45 is bridged between the floor portions 27 and 33 through the entrance 16. The slope member 45 is not necessarily formed of a metal plate material, and may be formed of a wooden plate material, a resin plate material, or the like.

  A floor mounting portion 51 that is attached to the floor portion 33 of the corridor 12 is provided at the upper end portion of the slope member 45, and a floor engagement that is engaged with the floor portion 27 of the entrance porch 18 is provided at the lower end portion of the slope member 45. A part 52 is provided. The slope member 45 is bridged between the floor portions 27 and 33 in a state where the floor mounting portion 51 is attached to the floor portion 33 and the floor engaging portion 52 is engaged with the floor portion 27. ing. The floor mounting portion 51 corresponds to the “mounting portion”.

  The floor mounting portion 51 is formed in a U shape with a steel plate, and a plurality (for example, a pair) of floor mounting portions 51 are mounted at predetermined intervals in the width direction of the slope member 45. The floor mounting portion 51 includes a fixed plate portion 51a fixed to the upper end surface 45a in the slope inclination direction of the slope member 45, and a pair of flange plate portions 51b and 51c provided on both upper and lower sides across the fixed plate portion 51a. Have The upper end surface 45a of the slope member 45 is formed to be inclined with respect to the plate surface of the slope member 45 so as to be a vertical surface when the slope is formed by the slope member 45, and the fixed plate portion 51a is welded to the upper end surface 45a. It is fixed by.

  Each flange plate part 51b, 51c extends on the opposite side to the slope member 45 with respect to the fixed plate part 51a. As a result, the inner groove 51 d surrounded by the plate portions 51 a to 51 c in the floor mounting portion 51 is opened toward the side opposite to the slope member 45. The groove 51d corresponds to an “insertion groove”.

  The floor attachment portion 51 is attached to the end portion 33b in a state where the end portion 33b of the floor portion 33 is inserted into the groove portion 51d. In this case, the vertical width of the groove 51d is the same as or slightly larger than the thickness of the floor 33. Therefore, the end portion 33b of the floor portion 33 is fitted in the groove portion 51d, so that the floor mounting portion 51 is detachably attached to the end portion 33b. Of the flange plate portions 51b and 51c on both sides of the groove portion 51d, the lower flange plate portion 51c has a shorter flange length than the upper flange plate portion 51b. This facilitates the operation of inserting the end portion 33b of the floor portion 33 into the groove portion 51d and attaching the floor mounting portion 51 to the end portion 33b. The end 33b of the floor 33 corresponds to the “attached part”.

  Next, the configuration on the lower end side of the slope member 45 will be described. The slope member 45 is provided with its lower end portion placed on the floor portion 27 of the entrance pouch 18. The slope member 45 has a placement surface 45 b placed on the floor portion 27. The mounting surface 45b is formed to be inclined with respect to the plate surface of the slope member 45 so as to become a horizontal plane when the slope is formed by the slope member 45. Thus, when the slope is formed by the slope member 45, the entire placement surface 45b is placed on the floor portion 27. For this reason, even if it is the structure which forms a slope using the plate-shaped slope member 45, it is possible to mount the slope member 45 on the floor part 27 in the stable state.

  The floor engaging portion 52 is formed in a U-shape by a steel plate, and a plurality (for example, a pair) is provided at a predetermined interval in the width direction of the slope member 45. The floor engaging portion 52 has a fixed plate portion 52a fixed to the upper surface (upper plate surface) of the slope member 45 by welding or the like, and an engaging plate portion 52b extending downward from the lower end portion of the fixed plate portion 52a. . The fixed plate portion 52a extends below the slope member 45 in the slope inclination direction, and the engaging plate portion 52b extends downward from the slope member 45 from the extended portion. Note that it is not always necessary to provide a plurality of floor engaging portions 52. For example, only one floor engaging portion 52 may be provided at the center in the width direction of the slope member 45.

  The floor portion 27 of the entrance porch 18 is formed with a groove portion 55 into which the engagement plate portion 52b enters the floor surface 27a. A plurality (for example, a pair) of groove portions 55 are provided corresponding to each floor engaging portion 52 (engaging plate portion 52b). When the engaging plate portion 52 b enters the groove portion 55, the engaging plate portion 52 b is engaged with the groove portion 55, and displacement of the lower end portion of the slope member 45 with respect to the floor portion 27 is restricted by the engagement. . In this case, the groove portion 55 corresponds to a restricting portion.

  A rotating body 56 is attached to the lower surface of the slope member 45. The rotating body 56 is constituted by a caster, and the rotating shaft is attached so as to extend in the width direction of the slope member 45. A pair of rotating bodies 56 are provided at a predetermined interval in the width direction of the slope member 45 (see also FIG. 1). Each of these rotating bodies 56 is disposed on the upper side (in other words, on the floor mounting portion 51 side) in the longitudinal direction of the slope member 45 (in other words, the slope inclination direction), and is placed on the floor portion 26 of the entrance 11. . Therefore, when the slope is formed by the slope member 45, each of the rotating bodies 56 becomes a slope support portion that supports the slope member 45 from below. Each of these rotating bodies 56 corresponds to a first rotating body.

  Next, a storage structure when the slope member 45 is stored in the storage space 43 will be described.

  As shown in FIG. 2A, the slope member 45 is stored sideways in the storage space 43 with the longitudinal direction thereof directed in the depth direction of the storage space 43. In this case, the slope member 45 has the floor mounting portion 51 on the back side of the storage space 43 with respect to the slope member 45 and the floor engagement portion 52 on the near side (opening 44 side with respect to the slope member 45). ). Further, in this storage state, each rotating body 56 of the slope member 45 is placed on the lower surface 43 a of the storage space 43.

  A rotating body 57 is attached to the lower surface 43 a of the storage space 43. The rotator 57 is constituted by a caster, like the rotator 56, and is composed of, for example, the same caster as the rotator 56. The rotating body 57 is arranged such that its rotating shaft extends in the width direction of the storage space 43. A plurality (specifically, a pair) of rotating bodies 57 are provided at predetermined intervals in the width direction of the storage space 43, and support the slope member 45 from below with each rotating body 56 (see also FIG. 1). . In this case, each of the rotating bodies 56 and 57 corresponds to a support portion, and the rotating body 57 corresponds to a second rotating body. The width direction of the storage space 43 is a direction orthogonal to the depth direction of the storage space 43 and is the same direction as the longitudinal direction of the rising collar 41.

  In the storage state of the slope member 45 in the storage space 43, of the rotary bodies 56 and 57, the rotary body 56 is positioned on the back side of the storage space 43, and the rotary body 57 is positioned on the front side (opening 44 side) of the storage space 43. doing. The slope members 45 are supported by these rotary bodies 56 and 57 in a sideways state (in other words, a state facing the lower surface of the floor portion 33). Each rotating body 57 is disposed at a position different from each rotating body 56 in the width direction of the storage space 43 (see FIG. 1). That is, the rotating bodies 57 are arranged so as not to line up in the depth direction of the rotating bodies 56 and the storage space 43.

  The slope member 45 is supported by the rotating bodies 56 and 57, so that the slope member 45 is disposed at the same height position as the extending portion 42 of the rising rod 41. Thereby, the slope member 45 is stored in the storage space 43 in a state of being covered and hidden from the entrance 11 side by the extending portion 42 of the rising hook 41. In addition, since the slope member 45 is disposed at the same height as the extending portion 42, the slope member 45 is prevented from moving from the storage space 43 to the entrance 11 side. In other words, the extending portion 42 functions as a stopper that prevents the slope member 45 from moving. In the configuration in which the slope member 45 is supported by the rotating bodies 56 and 57, the slope member 45 is easy to move, so such a stopper is effective.

  When the slope member 45 is used as a slope, the slope member 45 is pulled out from the storage space 43 to the entrance 11 side through the opening 44, and then the slope member 45 is pulled to the floor portion 27 of the entrance porch 18 and the floor portion 33 of the hallway 12. It will be bridged between. Therefore, the work contents at that time will be described below.

  First, an operation of removing the attaching / detaching portion 41b of the rising rod 41 from between the fixing portions 41a is performed. When the attaching / detaching portion 41b is removed, the end portion 33b of the floor portion 33 is exposed. Next, an operation of pulling out the slope member 45 from the storage space 43 to the entrance 11 side through the opening 44 is performed. As described above, since the slope member 45 is stored in a state of being supported by the rotary members 56 and 57, the rotary members 56 and 57 rotate when the slope member 45 is pulled out of the storage space 43, respectively. . For this reason, the slope member 45 can be smoothly drawn out to the entrance 11 side, and the drawing work of the slope member 45 can be easily performed.

  When the slope member 45 is pulled out from the storage space 43 toward the entrance 11, the slope member 45 is detached from the rotary body 57 provided in the storage space 43 and is supported only by the rotary body 56 attached to the lower surface of the slope member 45. It will be in a state to be. Here, since the rotator 56 is disposed on the floor mounting portion 51 side in the longitudinal direction of the slope member 45, the slope member 45 is inclined to incline upward toward the floor mounting portion 51 side at this time. . This inclination state is the same inclination state (inclination direction) as the inclination state when the slope member 45 forms the slope.

  Subsequently, the floor attaching portion 51 of the slope member 45 is attached to the end portion 33b of the floor portion 33, and the floor engaging portion 52 of the slope member 45 is engaged with the groove portion 55 of the floor portion 27, whereby the slope member 45 is Installation work is carried out by installing between the floor portions 27 and 33. In this installation work, since the slope member 45 is inclined upward as described above, it is easy to attach the floor mounting portion 51 to the end portion 33b of the floor portion 33. Installation work can be easily performed.

  As mentioned above, according to the structure of this embodiment explained in full detail, the following outstanding effects are acquired.

  By making a part of the rising ridge 41 a detachable attachment / detachment part 41b, the attachment / detachment part 41b can be retracted from a predetermined position covering the end 33b of the floor 33. And the floor attachment part 51 of the slope member 45 was attached to the edge part 33b of the floor part 33 exposed by the retraction | saving. In this case, the slope member 45 is more stable than the case where the slope member 45 is bridged between the floor portions 27 and 33 by simply placing the upper end portion and the lower end portion of the slope member 45 on the floor portions 27 and 33. Can be installed in the state.

  Further, according to such an installation configuration of the slope member 45, the slope member 45 is bridged between the floor portions 27 and 33 in a stable state without providing a slide member or the like as in the prior art (Patent Document 1). Therefore, the configuration can be simplified.

  Furthermore, since the end 33b (attached part) of the floor 33 to which the floor attaching part 51 is attached is usually covered with the raised ridge 41 (detachable part 41b), the appearance of the vicinity of the raised ridge is obtained by exposing the attached part. Can be avoided. Therefore, it is possible to install the slope in a stable state while avoiding that the appearance around the raised ridge 41 is impaired with a simple configuration.

  Since the groove portion 51d is provided in the floor attachment portion 51 of the slope member 45, and the end portion 33b of the floor portion 33 is fitted into the groove portion 51d, the floor attachment portion 51 is attached to the end portion 33b. It can be attached to the floor 33 side by a relatively simple operation. Further, since the floor mounting portion 51 is attached to the end portion 33b (attached portion) of the floor portion 33, it is not necessary to separately provide the attached portion, and the configuration can be simplified correspondingly.

  In addition to attaching the floor mounting portion 51 of the slope member 45 to the floor portion 33, the floor engaging portion 52 is engaged with the groove portion 55 of the floor portion 27, thereby restricting the displacement of the lower end portion of the slope member 45. I made it. Thereby, the slope member 45 can be installed in a more stable state.

  Since the slope member 45 is bridged obliquely between the floor portion 33 of the hallway 12 and the floor portion 27 of the entrance porch 18 through the entrance 16, the length of the slope member 45 can be increased. Thereby, since the inclination of the slope member 45 can be loosened, it becomes possible to reduce the burden at the time of moving with a wheelchair on the slope.

  Further, in this case, since the groove portion 55 for engaging the floor engaging portion 52 may be provided in the floor portion 27 of the outdoor entrance porch 18, the appearance of the floor portion 26 in the indoor (entrance 11) is impaired by the groove portion. Can be avoided.

  Further, in this case, since the slope member 45 can be installed on the upper surface of the mortar layer 29 (corresponding to the floor surface of the lower floor portion) across the step portion 32 formed along the entrance 16, There is no need to pass over the step 32. Therefore, this is also convenient.

  The slope member 45 is stored in the storage space 43 in a state of being supported from below by the rotating bodies 56 and 57, and the slope member 45 is disposed at the same height as the extending portion 42 of the eaves 41 in the supported state. In this case, since the slope member 45 is covered and hidden from the entrance 11 side by the extending portion 42, the slope member 45 can be prevented from being seen from the entrance 11 side. In order to arrange the slope member 45 at the same height as the extending portion 42, the slope member 45 does not necessarily need to be supported by the rotating bodies 56 and 57, and is supported by a support portion other than the rotating bodies 56 and 57. You may do it. For example, a spacer member fixed on the lower surface 43 a of the storage space 43 can be considered as the support portion.

  The rising rod 41 is divided into a pair of fixing portions 41a provided at both ends in the longitudinal direction and an attaching / detaching portion 41b provided between the fixing portions 41a, and each fixing portion 41a is mounted on the base portion 47. On the other hand, the attaching / detaching portion 41 b is not fixed on the base portion 47. Thereby, the detachable portion 41b is made detachable from a predetermined position (in other words, between the fixed portions 41a) covering the end portion 33b of the floor portion 33. In this case, a part of the rising hook 41 can be retracted from the predetermined position without affecting the joint portion between the rising hook 41 and the partition walls 21 and 22.

  Each fixing portion 41a is provided with a protruding portion 46 that protrudes toward each other at a position separated from the end portion 33b of the floor portion 33, and protrudes from the end portion 33b of the floor portion 33 on both ends in the longitudinal direction of the detachable portion 41b. An intrusion portion 48 that enters the portion 53 that is separated from the portion 46 is provided. Then, by making each entry portion 48 enter the separation portion 53, the attachment / detachment portion 41b can be attached / detached from between the respective fixed portions 41a. In this case, since the protruding portion 46 of the fixing portion 41a and the insertion portion 48 of the attaching / detaching portion 41b, that is, a configuration that can be attached / detached by the rising hook 41 itself is realized, a separate mounting member is provided to make the rising hook 41 removable. It is not necessary to provide it, and the structure can be simplified.

  The present invention is not limited to the above embodiment, and may be implemented as follows, for example.

  (1) The configuration for making the lifting collar 41 detachable is not necessarily limited to that of the above embodiment. For example, the configuration shown in FIG. 5 can be considered. In the example of FIG. 5, a long base material 61 is bridged over a pair of base portions 47 that are separated from each other. The base material 61 is made of wood, for example, and a plurality of protrusions 62 are provided on the upper surface thereof at predetermined intervals along the longitudinal direction of the base material 61. A rising collar 64 is provided on the base material 61. The rising ridge 64 is formed of a long wooden material having an L-shaped cross section, and includes a placement portion 65 placed on the base material 61 and a hanging portion 66 extending downward from the placement portion 65. The placement portion 65 is provided at the same height as the floor portion 33 and covers and conceals the end portion 33b of the floor portion 33 from the entrance 11 side. The drooping portion 66 extends below the base material 61 and covers the base material 61 from the entrance 11 side.

  The rising collar 64 has a pair of fixing portions 64a provided at both ends in the longitudinal direction, and an attaching / detaching portion 64b provided between the fixing portions 64a. Each fixing portion 64a is fixed to the base material 61 by bonding or the like. On the other hand, the detachable portion 64 b is not fixed to the base material 61. In the detachable portion 64 b, a plurality of holes (not shown) are formed on the lower surface of the mounting portion 65 corresponding to the protrusions 62 of the base material 61. In a state where the mounting portion 65 of the detachable portion 64b is placed on the base material 61, each protrusion 62 of the base material 61 is fitted into each hole (mortise). Thereby, the detachable part 64b is detachably attached to the base material 61. In this case, each fixing portion 64a corresponds to the first flange portion, and the detachable portion 64b corresponds to the second flange portion.

  In the example of FIG. 5, the upper end portion of the slope member is attached using the protrusion 62. Hereinafter, the mounting structure will be described with reference to FIG. As shown in FIG. 6, the slope member 68 is provided with a placement portion 68 a placed on the base material 61 on the upper end side. The placement portion 68a is a portion that extends in the horizontal direction when the slope is formed. The mounting portion 68a is provided with a plurality of holes 69 penetrating in the vertical direction. These holes 69 are provided at positions corresponding to the protrusions 62 of the base material 61. The placement portion 68 a is placed on the base material 61 in a state in which the protrusions 62 are inserted into the respective hole portions 69 (fitted state). Thereby, the mounting portion 68 a is attached to each protrusion 62. In this case, the placement portion 68a corresponds to an “attachment portion”, and each protrusion 62 corresponds to an “attachment portion”.

  Further, in the example of FIG. 5, a closing plate 71 for closing the opening 44 is attached to the attaching / detaching portion 64b. The closing plate 71 is made of a plate material extending in the longitudinal direction of the attaching / detaching portion 64 b, and the length thereof is the same as the interval between the base portions 47. The closing plate 71 is attached to the back surface of the hanging portion 66 of the attaching / detaching portion 64b. When the attaching / detaching portion 64b is attached between the fixing portions 64a, the closing plate 71 is arranged between the base portions 47 (see FIG. 5 (b)). In this case, the opening 44 is closed by the closing plate 71, and the slope member 68 can be reliably prevented from being seen from the entrance 11 side through the opening 44. In the closed state by the closing plate 71, the plate surface (on the entrance 11 side) of the closing plate 71 is flush with the outer surface (surface on the entrance 11 side) of each base portion 47.

  (2) In the above embodiment, a part of the rising hook 41 (detachable portion 41b) is detachable, but the entire rising hook 41 may be detachable. Further, the rising rod 41 does not necessarily need to be detachable. For example, a part or all of the rising rod 41 is a movable part that can be operated, and the movable part is moved to move the end 33b of the floor 33 to the movable part. It is good also as retraction from the predetermined position to cover. For example, a configuration is conceivable in which a rotation shaft is provided at the longitudinal end of the rising rod, and the rising rod (corresponding to the movable portion) can be rotated upward about the rotation shaft. In this case, it becomes possible to retreat the raised kite from the predetermined position by the rotation.

  (3) In the above embodiment, the slope member 45 has a rectangular plate shape, but the slope member 45 may have, for example, an arc plate shape. An example in that case is shown in FIG. A building 80 shown in FIG. 7 includes an entrance 81 and a living room 82 adjacent to the entrance 81 as an indoor space. The entrance 81 is provided with an entrance 83 as a building entrance, and the entrance 83 is provided with an entrance door 84. The entrance door 84 is composed of, for example, a parent / child door. Further, an entrance porch 85 is provided on the outdoor side of the entrance 81, and the entrance porch 85 can enter and exit from the entrance 81 via the entrance entrance 83.

  The floor 81a of the entrance 81 and the floor 85a of the entrance porch 85 are made of a dirt floor and are provided continuously with each other. Each of these floor portions 81a and 85a constitutes a “lower floor portion”. The floor portion 82a of the living room 82 is provided at a position higher than the floor portions 81a and 85a. Therefore, the floor 82a corresponds to the “upper floor”. A stepped portion 87 is formed between the floor portion 81 a of the entrance 81 and the floor portion 82 a of the living room 82, and a raised ridge 88 is provided in the stepped portion 87. The rising rod 88 extends in a direction intersecting the width direction of the entrance door 83, specifically in a direction perpendicular to the width direction. 7A shows a state in which the rising hook 88 is attached, and FIG. 7B shows a state in which the rising hook 88 is removed.

  A storage space 92 is formed below the floor 82a of the living room 82. The storage space 92 is adjacent to the entrance 81 via the stepped portion 87. A slope member 91 is stored in the storage space 92. The slope member 91 is made of a plate material formed in a substantially arc shape having a predetermined width. FIG. 8 shows a plan view of the slope member 91, and the shape of the slope member 91 will be described in detail with reference to FIG.

  As shown in FIG. 8, the slope member 91 extends in an arc shape in the slope length direction. In the slope member 91, side edge portions 91a and 91b on both sides in the slope width direction are each arcuate, while end edge portions 91c and 91d on both sides in the slope length direction are each linear. Each of the side edge portions 91a and 91b extends over the end edge portions 91c and 91d, and the inner side edge portion 91a of the side edge portions 91a and 91b has a circumferential length of 1 An arc shape having a length of / 4 is formed. Therefore, the angle α formed by each imaginary line extending from the arc center C of the side edge portion 91a (also the arc center of the side edge portion 91b) to both ends of the side edge portion 91a is 90 °. Note that the angle α is not necessarily 90 °.

  Each edge 91c, 91d extends in a direction orthogonal to each other. One end edge portion 91c of each end edge portion 91c, 91d, specifically, the end edge portion 91c that becomes the upper end portion of the slope at the time of slope formation is formed along a virtual straight line H passing through both ends of the side edge portion 91a. . Further, the other end edge portion 91d, specifically, the end edge portion 91d that becomes the lower end portion of the slope when the slope is formed, extends in a direction orthogonal to the virtual straight line H.

  As shown in FIG. 7A, the slope member 91 is stored in the storage space 92 in a sideways state. In this case, the slope member 91 is accommodated in a direction in which the end edge portion 91 d rises and extends along the flange 88. Specifically, the slope member 91 is accommodated so that the convex portion of the arc faces the opposite side of the entrance door 83 side in the longitudinal direction of the rising rod 88.

  The slope member 91 is pulled out of the storage space 92 by rotating and moving toward the entrance 81 with the arc center C as the rotation center. And the slope member 91 is installed by spanning through the entrance port 83 between the floor part 85a of the entrance porch 85, and the floor part 82a of the living room 82, as shown in FIG.7 (b). In this case, the slope member 91 has an end edge portion 91 c arranged along the stepped portion 87, and an end edge portion 91 d arranged so as to extend in the width direction of the entrance door 83. Although illustration is omitted, when the slope member 91 is installed, a part or all of the rising hook 88 is removed, and the floor mounting portion of the slope member 91 is attached to the end portion of the floor portion 92a exposed thereby ( (The illustration is omitted).

  In this way, even if the rising ridge 88 extends in a direction orthogonal to the width direction of the entrance 83, the slope member 91 is formed between the floor portions 82a and 85a by forming the slope member 91 in an arc shape. Can pass.

  (4) In the above embodiment, the position of the lower end portion of the slope member 45 is regulated by engaging the floor engaging portion 52 of the slope member 45 with the groove portion 55 (corresponding to the regulating portion) of the floor portion 27. The configuration for performing the position restriction is not necessarily limited to this. For example, a protruding portion (corresponding to a regulating portion) that can be engaged with the lower end portion of the slope member 45 is provided on the floor surface 27a of the floor portion 27, and the lower end portion of the slope member 45 is engaged with the protruding portion. Regulation may be performed. In this case, since it is not necessary to provide the floor engaging portion 52 in the slope member 45, the configuration on the slope member 45 side can be simplified accordingly.

  Note that the position of the lower end of the slope member 45 is not necessarily restricted. Even in such a case, it is possible to install the slope member 45 in a stable state by attaching the floor attachment portion 51 of the slope member 45 to the end portion 33b of the floor portion 33. Further, in this case, since the configuration for position restriction can be omitted, the configuration can be simplified correspondingly.

  (5) In the above embodiment, the rotator 56 attached to the lower surface of the slope member 45 and the rotator 57 attached to the lower surface 43a of the storage space 43 are stored so that the slope member 45 is supported from below. However, of these rotating bodies 56 and 57, for example, the rotating body 57 may be omitted. In addition, the slope members 45 may be stored in a state where they are placed on the lower surface 43 a of the storage space 43, assuming that both the rotating bodies 56 and 57 are not provided.

  (6) In the above embodiment, the dedicated storage space 43 for storing the slope member 45 is provided below the floor 33 and the slope member 45 is stored in the storage space 43. However, the dedicated storage space 43 is not provided. In addition, the slope member 45 may be stored in an existing storage space such as a warehouse. Further, the slope member 45 is not necessarily stored in the storage space, and may be stored by leaning on a wall near the entrance 11 or the like.

  (7) In the above embodiment, the slope member 45 is bridged between the floor portion 33 of the hallway 12 and the floor portion 27 of the entrance porch 18 to form the slope. However, the slope member 45 is connected to the floor portion 33 of the hallway 12. A slope may be formed by bridging between the floor and the floor portion 26 of the entrance 11. In this case, the length of the slope member may be shortened accordingly.

  (8) In the above embodiment, the slope installation structure of the present invention is applied to the stepped portion 39 between the floor portion 26 of the entrance 11 and the floor portion 33 of the hallway 12. In the case where a step is generated between the step and the step, the slope installation structure of the present invention may be applied to the step.

  DESCRIPTION OF SYMBOLS 10 ... Building, 11 ... Entrance, 12 ... Corridor, 15 ... Entrance entrance as building entrance / exit, 18 ... Entrance porch, 33 ... Floor part as upper floor part, 33b ... End part as attached part, 41 ... Raised wall, 41a ... a fixing part as a first collar part, 41b ... an attaching / detaching part as a second collar part, 42 ... an extension part, 43 ... a storage space, 43a ... a lower surface, 44 ... an opening part, 45 ... a slope member, 46 ... a protruding part , 47... Foundation portion as a heel support portion, 48 .. Intrusion portion, 51... Floor mounting portion as an attachment portion, 51 d. Rotating body as part and first rotating body, 57... Rotating body as supporting part and second rotating body, 71.

Claims (11)

A slope installation structure comprising a plate-like slope member that forms a slope by being bridged obliquely between a lower floor portion and an upper floor portion provided at different heights,
A stepped portion between the lower floor portion and the upper floor portion is provided with a rising ridge that covers an end portion of the upper floor portion,
The rising rod is provided so that at least a part thereof can be retracted from a predetermined position covering the end portion, and an exposed portion that is exposed by the retracting is attached to an attachment portion provided at an upper end portion of the slope member. A slope installation structure characterized in that a mounting portion is provided. The attached portion is the end portion of the upper floor portion,
The slope installation structure according to claim 1, wherein the attachment portion has an insertion groove portion into which the end portion is inserted, and is attached to the end portion by inserting the end portion into the insertion groove portion. .   3. The slope installation structure according to claim 1, wherein the lower floor portion is provided with a restriction portion that restricts a displacement of a lower end portion of the slope member. The lower floor portion is composed of a dirt floor straddling indoor and outdoor across the building entrance,
The slope installation structure according to any one of claims 1 to 3, wherein the slope member is provided across the lower floor portion and the upper floor portion through the building entrance. A storage space capable of storing the slope member is formed under the floor of the upper floor portion,
The storage space opens to the space above the floor of the lower floor through an opening provided in the stepped portion,
The rising hook is provided with an extending portion that extends downward from the upper floor portion,
A support portion for supporting the slope member in a state of facing the lower surface of the upper floor portion in the storage space;
The slope installation structure according to any one of claims 1 to 4, wherein the support portion supports the slope member at the same height as the extension portion. A storage space capable of storing the slope member is formed under the floor of the upper floor portion,
The storage space opens to the space above the floor of the lower floor through an opening provided in the stepped portion,
The slope installation structure according to any one of claims 1 to 5, wherein a closing plate for closing the opening is integrally provided on the rising hook. A first rotating body is attached to the lower surface of the slope member at a position near the attachment portion in the slope inclination direction,
The slope member is stored sideways in the storage space so that the attachment portion is positioned on the back side of the storage space with respect to the slope member, and in the storage state, the first rotating body is stored in the storage space. Placed on the bottom,
A second rotating body that supports the slope member together with the first rotating body from below is attached to the lower surface of the storage space.
The second rotating body is arranged at a position not lined up in the depth direction of the first rotating body and the storage space,
The said 1st rotary body and the said 2nd rotary body are each rotated when the said slope member is pulled out through the said opening part from the said storage space, The Claim 5 or 6 characterized by the above-mentioned. Slope installation structure.   8. The slope installation structure according to claim 7, wherein the first rotating body is placed on a floor surface of the lower floor portion and supports the slope member from below when the slope is formed by the slope member. 9. The step portion is provided with a heel support portion for supporting the raised heel from below,
The rising ridge has a plurality of divided ridges divided in the longitudinal direction,
The plurality of split hooks include a pair of first hooks provided on both ends of the raised hook and fixed to the hook support, and provided between the first hooks and not to the hook support. A fixed second collar,
The slope installation structure according to any one of claims 1 to 8, wherein the second collar part is retractable from between the first collar parts as the predetermined position. Each of the first flanges has a protrusion that protrudes toward each other at a position spaced from the end of the upper floor,
The second brim portion has an intrusion portion that enters a separation portion between the end portion and the protruding portion on both end sides thereof,
10. The slope installation structure according to claim 9, wherein the second flange portion is detachably attached to the predetermined position by the entry of each entry portion into the separation portion. The lower floor part consists of a dirt floor straddling the indoor and outdoor across the building entrance,
The rising ridge extends in a direction intersecting the width direction of the building entrance and exit,
The said slope member has the shape extended in a planar view circular arc shape through the said building entrance and exit from the said upper floor part to the said lower floor part at the time of slope formation. Slope installation structure as described in.

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