JP6685028B2 - Stairs - Google Patents

Description

  The present invention relates to stairs installed in a building such as a house.

  BACKGROUND ART Conventionally, a platform-like staircase having a base tread plate that is fixed to a pair of parallel side plates so that it can be used as a step plate part of a temporary staircase and a base riser plate that can be used as a riser part of a temporary staircase is known. ing. Patent Document 1 below discloses that in such a staircase, after being used as a temporary staircase during construction, a decorative tread plate is fixed on the upper surface of the base tread plate by superimposing the decorative tread plate on the front surface of the base tread plate. Has been done.

JP, 2013-144884, A

  However, in Patent Document 1 described above, when fixing the base tread to the base riser, a fixing tool such as a wood screw is passed through from the upper surface of the base tread toward the base riser and fixed. Therefore, when the fixing tool is not attached properly, the fixing tool protruding from the tread surface of the base tread may cause an operator to stumble or get caught in the fixing tool.

  The present invention has been proposed in view of the above points, and an object thereof is to propose a staircase capable of improving strength and safety when used as a temporary staircase.

In order to achieve the above object, a staircase according to the present invention includes a base tread plate fixed between a pair of side plates arranged substantially in parallel, and a base tread plate installed upright on the kick of the base tread plate. A staircase comprising a decorative tread that is fixed to be superimposed on the upper surface of the base tread and a decorative riser that is fixed to be overlapped on the front surface of the base tread, wherein the ground tread is a front end surface thereof. To the lower surface, the rear end surface is fixed by a rear fixing member penetrating the backing kick plate from the rear surface of the backing kick plate, and the back kick plate is an upper rear surface thereof. Is arranged so as to abut the front end surface of the cutout portion, in that state is fixed by a front fixing tool that penetrates the base kick plate from the front of the base kick plate and reaches the base tread plate, and the decorative kick plate, On the front of the base riser It is provided so as to be substantially flush with the front end surface of the upper base tread in an upper layer, the lower end surface of which is placed on the upper surface of the lower base tread, and the front surface of which is the rear end surface of the decorative tread. A nose member disposed so as to contact the front tread of the decorative tread, and a nose member arranged so as to cover the front tread. The nose member is attached to the cosmetic tread plate by covering the front end face and extending to a position where the front upper end portion of the decorative riser plate is hidden, and the nose lower fixing tool is inserted from the lower end portion of the nose member. It is characterized by

  Since the staircase according to the present invention is configured as described above, it is possible to improve the strength and safety when it is used as a temporary staircase.

It is the figure shown typically in order to explain the stairs concerning the embodiment of the present invention, (a) is a perspective view showing the construction process of the same stairs, and (b) is a side view of (a). (A) is a perspective view which shows the construction process of the same stairs, (b) is a side view of (a). (A) is a perspective view showing the same staircase, and (b) is a side view of (a).

Embodiments of the present invention will be described below with reference to the drawings.
In the following embodiments, the front side is the front side, the opposite side is the rear side (back side) with the state of facing the constructed staircase from the lower floor side as a reference, and the vertical direction and the left-right direction with reference to that state. Etc. will be described. 1 to 3 are explanatory views for explaining the stairs according to the present embodiment, and in some of the drawings, some of the detailed reference numerals attached to the other drawings are omitted. Also, illustrations of the fixtures 7a to 7e are omitted as appropriate.

  The staircase 1 according to the present embodiment includes a base tread plate 3 fixed between a pair of side plates 2 and 2 arranged substantially in parallel, and a base tread plate 4 attached to a kicking portion of the base tread plate 3. The staircase 1 also includes a decorative tread plate 5 fixed to the upper surface 3 a of the base tread plate 3 in a superimposed manner, and a decorative riser plate 6 fixed to the front surface 4 b of the base tread plate 4 in an overlapping manner. The base tread 3 has a notch 30 formed by cutting out from the front end face 3b to the lower face 3c thereof, and the rear end face 3d is formed by a rear fixture 7b penetrating the base riser plate 4 from the rear face 4d of the base riser plate 4. Fixed. The base kick plate 4 is arranged such that its upper rear surface 4da abuts on the front end face 30b of the cutout portion 30, and in this state, is fixed by a front fixing member 7a penetrating the base kick plate 4 from the front of the base kick plate 4. ing. The details will be described below.

  The stairs 1 may be constructed as a stairway between a lower floor and an upper floor in a building such as a residence, or may be constructed as a stairway to a loft such as an attic. The pair of side plates 2 and 2 forming the staircase 1 are flat plates arranged according to the gradient of the staircase 1, and are arranged substantially parallel to the left and right along a wall surface (not shown). The material of the side plate 2 is not particularly limited, but may be made of solid wood, wood laminated boards such as plywood, laminated wood, wood-based materials such as wood fiberboard, synthetic resin materials, and wood powder. (Wood) -It may be formed of a plastic composite material or the like. In addition, a surface decorative sheet such as a veneer or a resin film may be attached to the surface of the base material made of these, or may be subjected to surface cosmetic treatment such as coating. A horizontal plane 2a and a vertical plane 2b are alternately formed on the side plate 2 in the form of a platform. On the horizontal plane 2a, the left and right ends of the ground tread 3 are placed, and the ground tread 3 is treaded on the horizontal plane 2a. It is fixed by the fixture 7c. The wall surface to which the side plate 2 is fixed may be a pillar material such as a stud, or a structural frame of a building such as a stud, a steel material, and reinforced concrete.

  The base tread 3 is a rectangular flat plate having a lateral width dimension in which both ends are fixed to the horizontal surfaces 2a, 2a of the pair of side plates 2, 2, and when the upper surface 3a is used as a temporary stair, the tread 3e Becomes The material of the base tread 3 is not particularly limited, but may be made of wood-based material, synthetic resin-based material, wood powder (wood-based) / plastic composite material, or the like. The thickness of the base tread 3 is not particularly limited, but may be about 10 mm to 25 mm. The ground tread 3 has a notch 30 formed by cutting from the front end surface 3b of the ground tread 3 to the lower surface 3c. In the drawing, 3a is an upper surface, 3b is a front end surface, 3c is a lower surface, 3d is a rear end surface, and 30a is a back surface. Indicates a cutout upper surface, and 30b indicates a front end surface. As shown in FIG. 1A, the base tread 3 is fixed to the horizontal surface 2a of the side plate 2 by a tread fixture 7c that penetrates the base tread 3 from above to reach the side plate 2. Further, as shown in FIG. 1B, a front fixing member 7a for fixing the base riser plate 4 from the front is inserted into the front end face 30b of the cutout portion 30 of the base tread plate 3, and the rear end face 3d of the base tread plate 3 is inserted. A rear fixing member 7b for fixing the base riser plate 4 from the rear side is inserted.

  The base riser plate 4 is attached to the riser portion of the base tread plate 3 and has a rectangular flat plate shape. The base riser plate 4 in the illustrated example has a lateral width dimension smaller than the lateral width dimension of the underlying footboard 3, but the invention is not limited to this and both end portions are fixed to the vertical surfaces 2b, 2b of the pair of side plates 2, 2. It may have a width dimension. The material of the base riser plate 4 is not particularly limited, and may be the same as the base footboard 3. The thickness of the base riser plate 4 is not particularly limited, but may be thinner than the base tread plate 3, for example, about 8 mm to 20 mm. In the figure, 4a is an upper surface, 4b is a front surface, 4c is a lower surface, 4d is a rear surface, 4ba is an upper front surface, 4bb is a lower front surface, 4da is an upper rear surface, and 4db is a lower rear surface. As shown in FIG. 1B, the base riser plate 4 has its upper end surface 4a in proximity to or in contact with the notched upper surface 30a of the cutout portion 30, and its upper rear surface 4da in contact with the front end surface 30b of the notched portion 30. It is located in. Further, the base riser plate 4 is arranged so that the lower front surface 4bb thereof comes into contact with the rear end face 3d of the base tread plate 3. In this state, the base riser plate 4 is fixed by a front fixing member 7a which penetrates the base riser plate 4 from the upper front surface 4ba of the base riser plate 4 and reaches the base footboard 3. Further, the base riser plate 4 in this state is fixed by a rear fixing member 7b which penetrates the base riser plate 4 from the lower rear surface 4db of the base riser plate 4 to reach the base footboard 3.

  The staircase composed of the pair of side plates 2 and 2, the ground tread 3 and the ground riser 4 shown in FIGS. 1 (a) and 1 (b) is used in this state for curing to prevent pollution during construction of the house. It can be used as a temporary staircase 100 that does not require. Even in such a temporary staircase 100 during construction, the base tread plate 3 is fixed to the pair of side plates 2 and 2, and the base riser plate 4 is interposed and fixed by the front fixture 7a and the rear fixture 7b. Has been done. Therefore, the strength of the front side of the base tread plate 3 can be secured, and the safety at the time of raising and lowering can be enhanced. Further, these fixing tools 7a to 7c for fixing the base tread plate 3 and the base riser plate 4 are struck in the front, rear, and both ends of the base tread plate 3, so that these are fixed to the place to be the tread surface 3e of the base tread plate 3. The fixtures 7a to 7c are not inserted. Therefore, it is possible to prevent the worker or the like from stumbling or catching on the fixtures 7a to 7c for fixing the base tread 3 when moving up and down the temporary stairs 100.

  The decorative tread plate 5 is fixed to the upper surface 3a of the base tread plate 3 by being overlaid thereon. The decorative tread 5 is a rectangular flat plate having a width substantially equal to the width of the base tread 3 and a depth dimension slightly smaller than the depth of the base tread 3, and a cutout is formed from the upper surface 5a to the front end surface 5b. A cosmetic cutout portion 50 in which the nosing member 8 is arranged is formed. The material of the decorative tread 5 is not particularly limited, but may be made of solid wood, wood laminated boards such as plywood, laminated wood, wood-based materials such as wood fiberboard, synthetic resin-based materials, or wood. It may be formed of powder (wood) / plastic composite material or the like. In addition, a surface decorative sheet such as a veneer or a resin film may be attached to the surface of the base material made of these, or may be subjected to surface cosmetic treatment such as coating. The thickness dimension of the decorative tread 5 is not particularly limited, but may be thinner than the base tread 3, for example, about 8 mm to 20 mm. In the figure, 5a is an upper surface, 5b is a front end surface, 5c is a lower surface, and 5d is a rear end surface. The decorative tread 5 is superposed on the upper surface 3a of the base tread 3, and the lower surface 5c of the decorative tread 5 and the upper surface 3a of the base tread 3 are in contact with each other and stacked. Further, the decorative tread plate 5 is arranged such that the rear end surface 5d of the decorative tread plate 5 contacts the front surface 6b of the decorative riser plate 6, and is fixed to the base tread plate 3 with an adhesive in this state.

  The decorative riser plate 6 is fixed by being superposed on the front surface 4b of the base riser plate 4, and as shown in FIG. 2A, between the makeup tread plate 5 arranged on the upper stage and the makeup tread plate 5 arranged on the lower stage. Is disposed so as to cover. The decorative riser plate 6 has a lateral width dimension substantially equal to the lateral width dimension of the decorative tread plate 5, and has a height dimension that can be placed between the notch 30 of the upper base tread plate 3 and the upper surface 3a of the lower base tread plate 3. It has a rectangular flat plate shape. The material of the decorative riser plate 6 is not particularly limited, and the same material as the decorative tread plate 5 can be used. The thickness of the decorative riser plate 6 is not particularly limited, but may be a thin plate having a thickness of, for example, about 4 mm to 6 mm. In the figure, 6a is an upper end surface, 6b is a front surface, 6c is a lower end surface, 6d is a rear surface, and 6ba is a front upper end portion. As shown in FIG. 2B, the makeup riser plate 6 is provided so as to be substantially flush with the front end face 3b of the upper base tread plate 3 in a state of being superposed on the front face 4b of the base riser plate 4. The rear surface 6d of the riser plate 6 and the front surface 4b of the base riser plate 4 are brought into contact with each other to be laminated. Further, the decorative riser plate 6 is arranged so that its lower end surface 6c is placed on the upper surface 3a of the lower step tread plate 3 and its front surface 6b is in contact with the rear end surface 5d of the decorative tread plate 5, and is bonded in this state. It is fixed to the base riser 4 with an agent. Therefore, the front riser 7a can be covered with the decorative riser plate 6, and the appearance can be improved. Further, since the decorative riser plate 6 is arranged so as to be sandwiched between the base riser plate 4 and the nose member 8 and the rear end surface 5d of the makeup step plate 5, an adhesive for fixing the makeup riser plate 6 is provided. The use of can be minimized.

  The nosing member 8 is arranged so as to cover the front corner of the decorative tread 5. Specifically, the nosing member 8 is a member formed in a substantially L-shaped cross section having a lateral width dimension substantially equal to the lateral width dimension of the decorative tread plate 5 so as to cover the decorative cutout portion 50 and the front end surface 5b of the decorative tread plate 5. is there. The material of the nosing member 8 is not particularly limited, and may be the same as the decorative tread plate 5 or the decorative riser plate 6. The nosing member 8 has an upper cover portion 8a formed to be fitted into the decorative cutout portion 50, and a front cover portion 8b formed to cover the front end surface 5b of the decorative tread plate 5. The upper cover 8a of the nosing member 8 is formed so as to be substantially flush with the upper surface 5a of the decorative tread 5. The lower end portion 8c of the nosing member 8 is formed to cover the front end surface 3b of the base tread plate 3 and extend to a position where the front upper end portion 6ba of the decorative riser plate 6 is hidden. A concave groove 80 is formed in the lateral direction (longitudinal direction of the nose member 8) in the upper cover portion 8a of the nose member 8, and the nose upper fixing tool 7d is provided from above the concave groove 80 toward the bottom of the concave groove 80. Is inserted (see FIG. 2B). The lower end 8c of the nose member 8 is formed with a recess 81 (see FIG. 2 (b)) for accommodating the head of the nose lower fixture 7e which is driven obliquely rearward from the lower end 8c. The lower fixture 7e is inserted. In this way, the nose member 8 can be firmly attached to the front corner portion (tip portion) of the decorative tread 5 by the nose upper fixing tool 7d and the nose lower fixing tool 7e.

As shown in FIGS. 3 (a) and 3 (b), the nosing member 8 is provided with a non-slip member 9 that fits into the groove 80. The material of the anti-slip member 9 is not particularly limited, but may be made of, for example, a soft synthetic resin material or elastic material that can exhibit an anti-slip function. The non-slip member 9 has a cover portion 9a that covers the concave groove 80 and the nose upper fixing tool 7d, and a fitting portion 9b that fits into the concave groove 80. It is formed so as to extend so that the boundary between the nosing member 8 and the decorative tread plate 5 is hidden. In addition, the cap member 10 shown in FIG. 3B may be fitted to the head of the nose-fixing fixture 7e that is inserted into the recess 81. In this way, the head of the nose-fixing fixture 7e is housed in the recess 81, and if the cap member 10 is fitted to the head, the stairs 1 may look up. it can.
The structure for covering the head of the nose-lowering fixture 7e is not limited to the cap member 10 of the illustrated example, and the recess 81 is a groove formed along the longitudinal direction and is extruded and molded therein. You may make it fit the formed fitting member (not shown).

Next, an example of a procedure for constructing the staircase 1 having the above configuration will be described with reference to FIGS. 1 to 3. The procedure described below is an example, and the present invention is not limited to this.
First, the pair of side plates 2 and 2 are fixed along the wall surface (not shown). Next, as shown in FIG. 1 (a), the base tread plate 3 is arranged so as to bridge over the horizontal planes 2a, 2a of the pair of side plates 2, 2, and the tread plate fixtures 7c are driven into both ends of the base tread plate 3. Fix it. At this time, a level is placed on the upper surface 3a of the base tread plate 3 to check whether it is horizontal, and then the base tread plate 3 is sequentially fixed to the horizontal surface 2a by the tread plate fixing tool 7c.

  Next, the base riser 4 is arranged. Around the rear side of the installation place of the stairs 1, the upper end surface 4a of the base riser plate 4 contacts the notch upper surface 30a of the cutout portion 30 of the base footboard 3, and the upper rear surface 4da thereof contacts the front end surface 30b of the notch portion 30. Distribute to. Further, the lower front surface 4bb of the base kick plate 4 is arranged so as to contact the rear end surface 3d of the base tread plate 3, and in this state, the rear fixing member 7b is inserted into the lower rear surface 4db of the base kick plate 4 to move the base kick plate 4 It is screwed in to the position where it penetrates and reaches the base tread 3. As a result, the lower side of the base riser plate 4 is fixed to the base tread plate 3 by the rear fixture 7b. It moves to the front side of the stairs 1 installation place again, and the front fixing tool 7a fixes the upper part of the base riser plate 4 and the base tread plate 3 to each other. The upper rear surface 4da of the base kick plate 4 is repositioned so as to contact the front end surface 30b of the cutout portion 30, and the front fixture 7a is screwed in from the front of the base kick plate 4. The front fixture 7a penetrates the base riser plate 4 and reaches the front end surface 30b of the base tread plate 3. As a result, the upper side of the base riser plate 4 is fixed to the base tread plate 3 by the front fixture 7a. The temporary staircase 100 is constructed through the above-described construction procedure. The construction procedure is not limited to the above, and the procedure of fixing the base riser plate 4 with the front fixture 7a is performed before the base riser plate 4 is fixed with the rear fixture 7b. Good.

  After the use as the temporary stairs 100 is finished, the decorative riser plate 6 and the decorative tread plate 5 are sequentially installed on the temporary stairs 100 to finish the stairs 1. First, the decorative riser plate 6 is disposed so as to overlap the front face 4b of the base riser plate 4 fixed by the front fixture 7a. Then, the front surface 6b of the decorative riser plate 6 and the front end surface 3b of the upper step plate 3 are substantially flush with each other, and the lower end surface 6c of the decorative riser plate 6 is placed on the upper surface 3a of the lower step plate 3. At this time, the decorative riser plate 6 is fixed to the base riser plate 4 with an adhesive.

Subsequently, the decorative tread plate 5 is arranged. The decorative tread plate 5 is arranged so as to overlap the upper surface 3a of the base tread plate 3, and the rear end surface 5d of the decorative tread plate 5 is arranged to contact the front surface 6b of the decorative riser plate 6. Then, in this state, the decorative tread plate 5 is fixed to the base tread plate 3 with an adhesive.
Next, the nosing member 8 is arranged in the makeup cutout portion 50 of the makeup tread plate 5. The upper cover 8a of the nose member 8 is fixed by the upper nose fixture 7d, and the front cover 8b is fixed by the lower nose fixture 7e. Specifically, as shown in FIG. 2 (b), the nose upper fixing tool 7 d is screwed from the concave groove 80 of the nosing member 8 to the decorative tread 5, and the nose lower fixing tool 7 e is the recess 81 of the nose member 8. From above to diagonally up to the decorative tread 5. In addition, you may make it fix the under nose fixture 7e to the base tread 3.
After fixing the nose member 8 in this manner, the slip preventing member 9 is fitted in the groove 80, and the cap member 10 is fitted to the head of the nose lower fixture 7e accommodated in the recess 81. The staircase 1 as shown in FIG. 3A is constructed through the construction procedure as described above.

As described above, according to the present embodiment, even in the temporary staircase 100 under construction, the base tread plate 3 is fixed to the pair of side plates 2 and 2, and the base riser plate 4 is interposed so that the front fixture 7a and the rear fixture 7a. Since it is fixed by the fixing tool 7b, the strength of the front side of the ground tread 3 can be secured. Further, since the fixing tools 7a to 7c for fixing the base tread plate 3 and the base riser plate 4 are struck in the front, rear, and both ends of the base tread plate 3, they are fixed to a place which becomes the tread surface 3e of the base tread plate 3. The tools 7a to 7c are not inserted. Therefore, it is possible to enhance the safety when the temporary stairs 100 is moved up and down. Further, even when the building material or the like comes into contact with the base tread plate 3 or the base riser plate 4 when used as the temporary staircase 100, and the base tread plate 3 or the base riser plate 4 is scratched, the present embodiment According to this, the makeup tread plate 5, the makeup riser plate 6 and the nose member 8 are arranged later. Therefore, it is possible to cover the scratches on the base tread plate 3 and the base riser plate 4 with the makeup tread plate 5 and the makeup riser plate 6, so that the temporary staircase 100 that does not require curing can be provided.
Further, the construction procedure is not limited to the above, and the decorative tread plate 5 and the decorative riser plate 6 to be constructed on the temporary stairs 100 can be easily removed in consideration of future reforms, and the use of the adhesive is reduced as much as possible. It may be attached. According to this embodiment, the makeup tread plate 5 and the makeup riser plate 6 can be exchanged after the construction of the stairs 1 while leaving the foundation tread plate 3 and the foundation riser plate 4 as they are. Therefore, it is possible to perform the reform without changing the steps of the stairs 1 before and after the reform.

  The shapes and configurations of the staircase 1, the temporary staircase 100, the pair of side plates 2 and 2, the base tread plate 3, the base tread plate 4, the makeup tread plate 5, the makeup tread plate 6, the nose member 8 and the like in this embodiment are illustrated in the drawings. The present invention is not limited to this, and the fixing positions and fixing points by the fixing tools 7a to 7e are not limited to the illustrated examples. The base tread 3 is arranged on the horizontal planes 2a, 2a between the pair of side plates 2, 2 and is fixed by the tread fixtures 7c from above, but is not limited to this. Alternatively, the base tread 3 may be fixed from the lower surface 3c. Further, in the present embodiment, the base riser plate 4 is made smaller than the horizontal width dimension of the base footboard 3, but the present invention is not limited to this, and the horizontal width dimension of the base riser plate 4 is substantially equal to the horizontal width dimension of the base footboard 3. The base riser 4 may be used. In the present embodiment, the fixtures 7a to 7e are wood screws, but the present invention is not limited to this, and other known fixtures such as nails may be used for fixing, or an adhesive or the like may be combined. You may fix it by fixing. Further, a sheet-shaped member such as a carpet may be laminated on the decorative tread plate 5, the decorative riser plate 6, and the nosing member 8.

1 staircase 2 side plate 3 base tread 3a upper surface 3b front end face 3d rear end face 30 notch 30b front end face 4 base ground kick plate 4d rear face 4da upper rear face 5 makeup tread plate 6 makeup riser plate 7a front fixing device 7b rear fixing member 8 steps

Claims (2)

A base tread that is fixed between a pair of side plates that are arranged substantially in parallel, a base tread that is installed upright on the rise of the base tread, and a decorative tread that is fixed by being superimposed on the upper surface of the base tread. A staircase including a decorative riser fixed to the front face of the base riser by superimposing,
The base tread has a notch formed from the front end surface to the lower surface of the base tread, the rear end surface is fixed by a rear fixing tool penetrating the base kick plate from the rear surface of the base kick plate,
The base kick plate is arranged such that its upper rear surface abuts on the front end face of the cutout portion, and in that state, a front fixing tool that penetrates the base kick plate from the front of the ground kick plate to the ground tread plate is provided. Fixed ,
The decorative riser plate is provided so as to be substantially flush with the front end face of the upper base tread plate in a state of being superposed on the front face of the lower base pave plate, and the lower end surface thereof is mounted on the upper surface of the lower base tread plate. Is placed, and the front surface thereof is disposed so as to contact the rear end surface of the decorative tread,
A front nose of the decorative tread is provided with a nose member arranged so as to cover the front nose, and a lower end of the nose member covers a front end face of the base tread of the decorative riser. It is formed to extend to the position where the front upper end is hidden,
A staircase characterized in that a nose-lowering fixture is inserted from a lower end portion of the nose member to attach the nose member to the decorative tread plate . In claim 1,
The stairs , wherein the lower end portion of the nose member is formed with a recess for accommodating the head of the nose lower fixing tool to be driven obliquely rearward from the lower end portion .

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