JP5261721B2 - Staircase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stair which excels in design while reducing material and manufacturing costs. <P>SOLUTION: In the stair in which a plurality of treads are disposed and fixed between the two side plates 12 provided between the ground and the end of a deck floor provided with a plurality of synthetic resin deck members 3, the tread 13 comprises the deck member 3 and a metal reinforcing tread 18 butting on the front end of the deck member 3, a recess 8 is formed at the front end lower part of the deck member 3 and a metal reinforcing core member 24 is disposed in the deck member, a projecting piece 23 abutting on the recess 8 of the deck member is formed at the rear of the reinforcing tread 18, and the projecting piece 23, deck member 3 and reinforcing core member 24 are serially fixed from below with screws. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a staircase using a tread used in a deck.

  Generally, synthetic resin decks are arranged around the yard of a building. For example, a technique is known in which a deck unit is made of a standard synthetic resin deck material, and these deck units are combined and arranged to create a large deck space outdoors (see Patent Document 1). In addition, since the deck space is set higher than the ground, stairs may be provided in the deck space.

  In this way, when installing stairs in the deck space, the tread surface of each step may be configured by a dedicated tread, but in the case of a synthetic resin deck, if the tread is also made of synthetic resin, the deck material Since it is necessary to make a mold different from that, it is common to use the deck material. However, when a stairs is moved up and down, the load on a person or the like increases at an accelerated rate, and particularly a large load is applied to the nose portion of the tread board, so a considerable strength is required. For this reason, conventionally, a synthetic resin deck material is supported on a flat support member made of aluminum or an alloy thereof, and this support member has a reinforcing tread for reinforcement at a portion corresponding to the nose portion of the front portion of the tread surface. There is known a configuration in which the two are integrally formed (see Patent Document 2). According to this, the tread has a high-strength reinforcing tread on the front of the deck material, and the area of the entire tread has increased, so the overall strength is increased and it can sufficiently withstand the lifting of people. became.

JP 7-279241 A JP 2006-29004 A

  However, since the above-mentioned support member is an extruded mold material of aluminum or an alloy thereof in which a reinforcing tread plate and a flat support portion are integrated, a large amount of metal material is required, and the mold is also considerably large. And the cost of production is inevitably high. Further, since the thickness of the tread is the sum of the thickness of the deck material and the support member, there is a problem that the design feels thicker than necessary and the design is impaired.

  It is an object of the present invention to solve the above problems, to reduce the cost of materials and manufacturing, and to provide a staircase that is excellent in design.

  In order to solve the above-mentioned problem, the invention according to claim 1 is arranged and fixed with a plurality of treads between two side plates provided between an end of a deck floor on which a plurality of synthetic resin decks are arranged and the ground. In the above-mentioned staircase, the tread is composed of the deck material and a metal reinforcing tread that is abutted against the front end portion of the deck material. A metal reinforcing core material is arranged, and a projecting piece that contacts the recessed portion of the deck material is formed on the rear part of the reinforcing tread, and the projecting piece, deck material, and reinforcing core material are fixed in series with screws from below. It is characterized by that.

The invention according to claim 2 is characterized in that, in claim 1, a downwardly inclined portion that is bent and continuous with respect to the protruding piece is formed on the lower surface of the reinforcing tread.
The invention according to claim 3 is characterized in that, in claim 1 or 2, the lower surfaces of the deck material and the reinforcing tread are substantially flush with each other.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, an L-shaped support member is fixed to an inner surface of a portion of the side plate corresponding to each of the treads, and a horizontal portion of these support members is fixed. The deck material and the reinforcing tread are mounted and fixed.

  According to the first aspect of the present invention, the tread is composed of a deck material and a metal reinforcing tread that is butted against the front end portion of the deck material, and a metal reinforcing core is disposed inside the deck material. Therefore, the strength of the deck material itself increases, and the projecting piece formed on the rear part of the reinforcing tread is brought into contact with the recess formed on the front end of the deck material, and the projecting piece, the deck material and the reinforcing core material are arranged in series from below. Since the screws are fixed, the reinforcing tread is firmly fixed to the deck material. In this way, the tread has a structure in which the reinforcing tread is coupled to the front end of the deck material, and is not configured to support the entire lower part of the deck material as in the prior art. In addition to being able to reduce, the entire tread does not become thick, so that a staircase excellent in design can be provided.

  Since the reinforcing core material of the deck material is disposed inside the deck material, the appearance is not impaired.

  Since the projecting piece of the reinforcing tread is brought into contact with the recessed portion of the deck material, and the projecting piece, the deck material, and the reinforcing core material are fixed in series with the screw from below, the head portion of the screw is hardly visible from the outside. Therefore, the appearance of the entire staircase is improved.

  According to the second aspect of the invention, since the downward inclined portion that is bent and continuous with respect to the projecting piece is formed on the lower surface of the reinforcing tread, the projecting piece, the deck material, and the reinforcing core material are provided from below. It is possible to easily perform a series of operations for fixing with screws.

  According to the invention of claim 3, since the bottom surface of the deck material and the reinforcing tread is made substantially flush with each other, the height of the entire tread is suppressed and the entire staircase is slimmed, so that the design is improved.

  According to the invention according to claim 4, since the L-shaped support members are fixed to the inner side surface of the side plate, and the deck material and the reinforcing tread are placed and fixed on the horizontal portion of these support members, the deck material and The reinforcing tread plate and the reinforcing core member can be collectively fixed to the support member.

The perspective view of the deck space using the tread concerning the present invention Side view of the deck space and stairs Partial enlarged view of FIG. Plan view of the main part of the deck space Cross section of side plate

  1 and 2, reference numeral A is a deck floor, and B is a deck staircase. A lattice fence C is provided around the deck floor A. FIG. 3 is an enlarged view of FIG.

  In the deck floor A, a deck material 3 made of a plurality of synthetic resin extruded molds is horizontally arranged on a side beam 2 supported on a support column 1, and each deck material 3 is shown in FIG. A plurality of hollow portions 6a and 6b are provided in parallel between the upper surface portion 4 and the lower surface portion 5 which are flat and parallel to each other. The hollow portion 6b between the hollow portions 6a on both sides is formed in a substantially square shape, whereas the outer ends of the hollow portions 6a on both sides are directed downward from the upper vertical portion 7 and the lower portion of the vertical portion 7. Are formed of a downwardly inclined portion 8 continuously formed, a lower vertical portion 9 formed below the downwardly inclined portion 8, and a fixed piece 10 protruding outward from the lower end of the lower vertical portion 9.

  The deck material 3 is arranged on the upper part of the side beam material 2 and fixed with screws by a common mounting bracket 25. The end face of the side beam 2 and the deck material 3 at the end are covered with a front beam 11.

  Next, the staircase is composed of two side plates 12 provided between the front beam member 11 at the end of the deck floor A and the ground, and a plurality of step plates 13 arranged and fixed between these side plates 12. It is configured.

  The side plate 12 is a hollow member (see FIG. 5) made of an extrusion mold material made of aluminum or its alloy, and the upper end portion is cut obliquely, and as shown in FIGS. 3 and 4, two L-shaped mounting brackets 14a and 14b are provided. It is being fixed to the front girder material 11 of the deck floor A via. A vertical portion 15a of an L-shaped metal support member 15 is fixed to an inner side surface of a portion corresponding to the tread plate 13 of the side plate 12, and a horizontal portion 15b projects from the inside. As shown in FIG. 5, a guide groove 16 is formed in the side plate 12 along the longitudinal direction, and the fixing bolt 17 at the center of the support member 15 is screwed from the guide groove 16. Thus, since the position of the fixing bolt 17 is determined somewhere on the guide groove 16, the mounting position of the tread can be freely set.

  The tread 13 is a unitary combination of the synthetic resin deck material 3 and the metal reinforcing tread 18. The reinforcing tread 18 is made of an extrusion mold material made of aluminum or its alloy, and one hollow of the deck material 3. Although slightly larger than the portion 6 and having a substantially square cross section, a fitting groove 22 for fitting the anti-slip 21 is formed on the upper surface portion 20, and a downward inclined portion is formed at the corner corner portion of the inner lower portion. A (recessed portion) 19 is formed, and a downward projecting piece 23 that protrudes obliquely downward from the upper end of the downward inclined portion 19 is further formed. The slip stopper 21 is made of rubber or synthetic resin.

  A metal reinforcing core member 24 is disposed inside the deck member 3 constituting the tread board 13. The reinforcing core member 24 is made of an extruded mold member made of aluminum or an alloy thereof, has substantially the same outer shape as the inner shape of the hollow portion 6a on both sides of the deck member 3, and is fitted to the offset positions on the left and right end sides of the deck member 3. Has been placed. The length of the reinforcing core member 24 may be a little longer than the width of the horizontal portion 15 b of the support member 15. Note that the shape of the reinforcing core member 24 is not limited to the above-described form.

  The deck material 3 and the reinforcing tread 18 are formed at the rear portion of the reinforcing tread 18 with the downward inclined portion 8 formed at the front end of the deck material 3 with the reinforcing tread 18 abuttingly disposed at the front of the deck material 3. The downward projecting piece 23 is brought into contact with each other, and the downward projecting piece 23 is fixed to the downwardly inclined portion 8 with a screw to be integrally coupled. Thereby, the lower surface and the upper surface of the deck material 3 and the reinforcing tread plate 18 are formed substantially flush with each other.

  Next, the tread 13 in which the deck material 3 and the reinforcing tread 18 are coupled is placed on the horizontal portion 15b of the support member 15 of the side plate 12 and fixed with screws. The screws are fixed to the reinforcing tread 18 from below the horizontal portion 15 b and are fixed to the hollow portions 6 a and the reinforcing core member 24 on both sides of the deck material 3.

  The reinforcing tread 18 can be similarly fixed to the deck material 3 by abutting against the rear end of the deck material 3. In this manner, the tread surface can be expanded by arranging the reinforcing treads 18 before and after the deck material 3.

  In addition, it is preferable to form a drain hole 27 in the deck material 3.

  According to the above-described configuration, the tread 13 is constituted by the deck material 3 and the metal reinforcing tread 18 abutted against the front end portion of the deck material 3, and the metal reinforcing core material 24 is provided inside the deck material 3. , The strength of the deck material 3 itself is increased, and the downwardly projecting portion 23 formed at the rear portion of the reinforcing tread 18 is brought into contact with the downwardly inclined portion 8 formed at the front end of the deck material 3 so that the downwardly projecting downward from below. Since the piece 23, the deck material 3 and the reinforcing core member 24 are fixed in series with screws, and can be fixed from below, the mounting work can be easily performed, and the reinforcing tread 18 is firmly fixed to the deck material 3. The In this way, the tread 13 has a configuration in which the reinforcing tread 18 is coupled to the front end of the deck material 3 and is not configured to support the entire lower portion of the deck material 3 as in the prior art, so the mold of the reinforcing tread 18 is also small. In addition, it is possible to reduce the material and to provide a staircase that is excellent in design because the entire tread plate 13 does not become thick.

  Since the reinforcing core member 24 of the deck member 3 is disposed inside the deck member 3, the appearance is not impaired.

  Since the downward projecting piece 23 of the reinforcing tread 18 is brought into contact with the downwardly inclined portion 8 of the deck material 3 and fixed to the downwardly inclined portion 8 from the downward protruding piece 23, the screw head is hardly visible from the outside. Therefore, the appearance of the entire staircase is improved.

  In addition, since the bottom surfaces of the deck material 3 and the reinforcing tread 18 are substantially flush with each other, the height of the entire tread 13 is suppressed, and the entire staircase is slimmed, so that the design is improved.

  The deck member 3 and the reinforcing tread plate 18 are joined together by a structure in which the downward projecting piece 23 formed at the rear portion of the reinforcing tread plate 18 is brought into contact with the downward inclined portion 8 formed at the front end of the deck member 3 and screwed. It is not limited to. For example, it is only necessary that the deck material 3 has a recess, and the upper surface of the recess is horizontal, not downward, and correspondingly, the protrusion of the reinforcing tread 18 is formed to protrude horizontally. It may be a structure that abuts and is fixed with screws from below. In short, the structure of the reinforcing tread may be formed so as to be easily combined with the structure of the deck material.

3 deck material 8 downward slope 12 side plate 13 tread plate
18 Reinforcement tread 23 Downward projecting piece 24 Reinforcement core

Claims (4)

  In a staircase in which a plurality of treads are arranged and fixed between two side plates provided between the end of a deck floor on which a plurality of synthetic resin decks are arranged and the ground, the tread is composed of the deck material and the deck material. It is composed of a metal reinforcing tread that is abutted with the front end of the deck, a recess is formed at the lower front end of the deck material, a metal reinforcing core is arranged inside, and the rear of the reinforcing tread Is a staircase in which a projecting piece abutting on the recessed portion of the deck material is formed, and the projecting piece, the deck material, and the reinforcing core material are fixed in series with screws from below.   The staircase according to claim 1, wherein a downwardly inclined portion that is bent and continuous with respect to the protruding piece is formed on the lower surface of the reinforcing tread.   The staircase according to claim 1 or 2, wherein the deck material and the bottom surface of the reinforcing tread are substantially flush with each other.   An L-shaped support member is fixed to the inner side surface of the side plate corresponding to each of the treads, and the deck material and the reinforcing tread are mounted and fixed on the horizontal portion of these support members. The staircase according to any one of claims 1 to 3.

Images