JPH0738382U - Wooden stairs - Google Patents

Abstract

(57) [Summary] [Purpose] To provide wooden stairs that can prevent the squeal of the treads. [Structure] A plurality of recesses 12 are formed in a sasara girder 11 at predetermined intervals, and a plurality of treads 1 are provided in each recess 12.
In the wooden stairs 10 in which 4 sheets were fitted one by one, the damping material 20 was interposed between the recess forming portion 11 a of the sasara girder 11 and the tread plate 14.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wooden staircase, and more particularly to a wooden staircase capable of eliminating the squeal of a tread.

[0002]

[Prior art]

 Generally, LVL (single board laminated material) is mainly used for the material of the wooden steps of the wooden stairs, and laminated plywood, LVL, particle board, fiber board, etc. are used for the material of the tread. Hereinafter, a conventional wooden staircase will be described with reference to FIG. As shown in FIG. 5, in the wooden staircase 100, recesses 102 for mounting the treads 103 are formed at predetermined intervals on the inner surfaces of the sasara girder 101 facing each other, and the treads 103 are mounted in the recesses 102 and necessary. It is constructed by attaching the riser plate 104 according to the above.

[0003]

[Problems to be solved by the device]

 However, in the wooden stairs 100 of the prior art described above, since the sasara girder 101 and the tread 103 that form the stairs 100 are wooden plates, due to poor processing accuracy and warpage due to absorption and release of moisture, etc., during or after construction. After a while, as shown by the chain line in the figure, a gap is formed between the recess forming portion 105 and the tread 103, and when the stairs 100 are climbed and descended, the treading force of the user rubs the two 103, 105 against each other. However, there was a problem that the squealing noise occurred. The present invention has been made in view of the above circumstances, and an object thereof is to provide a wooden staircase that can eliminate the squeal of a tread.

[0004]

[Means for Solving the Problems]

 A wooden stair according to claim 1, which is in accordance with the above object, is a wooden staircase in which a plurality of recesses are formed at predetermined intervals in a sasara girder, and a plurality of treads are fitted in each recess. A vibration damping material is interposed between the recess forming portion of the sasara girder and the tread plate.

[0005]

[Action]

 In the wooden stairs according to claim 1, when the tread plate is fitted into the concave part of the sasara girder, a damping material is interposed between the concave part forming part and the tread plate, so that, for example, absorption and release of moisture in the sasara girder and tread plate. Even if a warp occurs due to the formation of a gap between the recess forming portion and the tread plate, the recess forming portion and the tread plate do not rub against each other when the stairs are moved up and down, and no squeaking noise occurs. Moreover, when the stairs are moved up and down, the damping material acts as a cushion for the treads, which absorbs shocks when stepping on the stairs and improves the foot contact, relieving fatigue during the steps.

[0006]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. In addition, in this embodiment, a wooden floor in which one of the paired sasara girders is attached to the inner wall of the building and the other of the sasara girders is bidding in the lateral direction will be described as an example. Here, FIG. 1 is a perspective view of a wooden staircase according to a first embodiment of the present invention, FIG. 2 is an enlarged sectional view of a fitting portion between a girder and a tread, and FIG. 3 is a second embodiment of the present invention. FIG. 4 is a perspective view of a wooden floor according to the embodiment, and FIG. 4 is an enlarged cross-sectional view of the relevant part.

As shown in FIG. 1, the wooden staircase 10 according to the first embodiment of the present invention has a pair of Sasara girders 11 which are leaned diagonally between the first and second floors of a wooden house. Plural horizontal recesses 12 and vertical recesses 13 that are arranged in an intersecting manner are formed at predetermined intervals on the inner surfaces of the sasara girder 11 that face each other. Both ends of the tread plate 14 are fitted into the horizontal recesses 12 of the two sasara girders facing each other, and both ends of the riser plate 15 are fitted into the vertical recesses 13 opposite to each other, whereby the tread plate 14 and the riser plate 14 are fitted. A wooden staircase 10 is constructed by horizontally connecting 15 and 15.

[0008] The Sasara girder 11 uses an LVL 17 having a decorative veneer 16 adhered to its surface. However, without being limited to this, for example, a well-known wooden board material such as plywood, fiber board, or particle board. Can also be adopted. Further, the step board 14 and the riser board 15 are made of laminated plywood 19 having a decorative veneer 18 adhered to the surface thereof, but the invention is not limited to this, and other general materials such as particle board and fiber board are used. You can also use a wooden board.

As shown in FIG. 2, the characteristic feature of the wooden staircase 10 of the present invention is that, when the stairs are raised or lowered, the stairs are struck between the horizontal recess forming portions 11a of the respective saber girders 11 and the tread plate 14. The point is that the damping material 20 that eliminates the above is interposed. The damping material 20 is an L-shaped thick belt-shaped material in a sectional view, and is adapted to come into contact with both end surfaces and lower surfaces of both end portions of the respective treads 14. A double-sided tape 21 is provided on the outer surface of the vibration damping material 20 for adhering the vibration damping material 20 to the inner surface and the lower surface of the horizontal recess forming portion 11a.

As a material of the vibration damping material 20, a rubber-based material, a plastic-based material, or the like can be adopted. Examples of rubber materials include natural rubber, styrene rubber, butadiene rubber, chloroprene rubber, butyl rubber, nitrile rubber, acrylic rubber, urethane rubber, and silicone rubber. In addition, a foaming agent may be added to give a foamed body with relatively large cushioning properties. In this case, the expansion ratio is preferably about 1 to 3 times. This is because if it exceeds 3 times, the tread 14 will sink.

Examples of the plastic material include polystyrene, epoxy, polyvinyl chloride, phenol resin and the like. However, a soft material is preferable, and it is better to foam at the same ratio as in the case of rubber material. The thickness of the damping material 20 is preferably 1 to 3 mm, particularly about 2 mm, and if it is less than 1 mm, it is too thin to reduce the damping effect, and if it exceeds 3 mm, it is too thick and the tread 14 becomes difficult to mount. , Not economical.

Next, a method of constructing the wooden stairs 10 according to the first embodiment of the present invention will be described. In FIG. 1, a sasara girder 11 in which horizontal and vertical recesses 12 and 13 are formed is prepared in advance by a sasara girder cutting machine (not shown), and one of the sasara girders is attached to the inner wall of the stair construction site of the building. Then, as shown in FIG. 2, the damping material 20 is attached to each horizontal recess forming portion 11a of both sasara girders 11 via the double-sided tape 21, and then each horizontal and vertical recessed part of one sasara girder 11 is attached. One end portions of the tread plate 14 and the riser plate 15 are fitted to the twelve and thirteen, and firmly fixed by the nail 22. At this time, the end surface and the end lower surface of the tread 14 fitted in the horizontal recess 12 are pressed against the vibration damping material 20. Thereafter, the horizontal and vertical recesses 12 and 13 of the other sasara girder 11 are similarly fitted to the other ends of the horizontal and vertical recesses 12 and 13 thus supported in a cantilever manner, and the other sasara girder 11 is nailed. By striking, the wooden stairs 10 are constructed in a state where the other Sasara girders 11 are bidding in the lateral direction as shown in FIG.

For example, due to poor machining accuracy or warpage due to absorption and release of moisture, a gap may be formed between the horizontal recess forming portion 11a and the tread 14 at the time of construction or some time after construction, as shown by the chain line in the figure. Even if the user ascends and descends the stairs 10 in such a state, since the damping material 20 is interposed between the two 11a and 14, the timbers will not rub against each other. Therefore, no stepping noise is generated no matter how large the stepping force is applied to the tread 14. Further, when the stairs are moved up and down, the vibration damping material 20 also serves as a cushioning material for the tread 14, so that the vibration damping material 20 absorbs the shock of stepping on the stairs 10 to improve the foot contact when going up and down the stairs 10. You can relieve the fatigue inside.

Next, a wooden staircase according to a second embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 3, the wooden staircase 30 according to the second embodiment of the present invention is an example of a staircase without a riser plate, and a handrail 31 is provided on one side of the staircase, and the staircases 32 are provided near both ends thereof. A pair of sasara girders 33 are attached. As shown in FIG. 4, when mounting the tread 32, as in the first embodiment, the tread 32 is mounted in the respective horizontal recesses 34 formed in the sasara girder 33 via the damping material 35. ing.

The present invention has been described above with reference to the drawings. However, the present invention is not limited to this embodiment, and even if there is a design change within the scope of the invention, the present invention is included. For example, the wooden staircase is not limited to the staircase of the embodiment type, and any type of staircase may be used as long as the tread plate is fitted in the recess formed in the girder. Good. Further, in the embodiment, the damping material is interposed only between the recessed portion forming portion of the sasara girder and the tread plate, but without being limited to this, for example, the vertical recessed portion forming portion of the sasara girder and the riser plate may be formed. You may intervene between them.

[0016]

[Effect of device]

 According to the wooden stairs of claim 1, since the damping material is interposed between the recess forming portion of the sasara girder and the tread plate as described above, a gap is formed between the recess forming part and the tread plate for some reason. Also, the woods do not rub against each other, and the occurrence of stagnation can be eliminated. In addition, since the damping material has an appropriate cushioning property, it is easy to hit the feet when going up and down stairs, and is less likely to get tired.

[Brief description of drawings]

FIG. 1 is a perspective view of a wooden staircase according to a first embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a fitting portion between a sasara girder and a tread plate.

FIG. 3 is a perspective view of a wooden staircase according to a second embodiment of the present invention.

FIG. 4 is an enlarged sectional view of the main part.

FIG. 5 is an enlarged cross-sectional view of a fitting portion of a wooden staircase girder and a tread according to a conventional means.

[Explanation of symbols]

 10 Wooden stairs 11 Sasara girder 11a Horizontal recessed part 12 Horizontal recessed part 13 Vertical recessed part 14 Tread plate 15 Raising plate 16 Decorative veneer 17 LVL 18 Decorative veneer 19 Laminated plywood 20 Damping material 21 Double-sided tape 22 Nails 30 Wooden stairs 31 Handrail 32 Footboard 33 Sasara girder 34 Horizontal recess 35 Damping material

Claims (1)

[Scope of utility model registration request] 1. A wooden staircase in which a plurality of recesses are formed at predetermined intervals in a sasara girder, and a plurality of treads are fitted in each of the recesses, respectively, A wooden staircase characterized by interposing a damping material between the tread.