JP2009055961A - Step board attaching device for stilt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a step board attaching device capable of securely fixing the attaching height of a step board without sliding a piece relative to a pole of a stilt by fitting the piece to the pole and circumscribing/fitting the step board to an outer casing of the piece in a fitting hole which can store the outer casing because an inner casing of the piece becomes approximately perfect cylindrical space and the closely attached state to the surface of the pole is perfect. <P>SOLUTION: In the piece 3, the straight lined inner casing 3a and the truncated cone-shaped outer casing 3b are integrally connected to each other with radial ribs 3c. A plurality of slits 3d in the axial direction reaching upper and lower end faces are formed at regular angles in the inner casing 3a; and one slit 3e in the axial direction reaching the upper and lower end faces, matching the slits 3d in the inner casing 3a, and a plurality of slits 3f in the axial direction from near one lower or upper end face reaching to the other end face are formed in the outer casing 3b. The inner casing 3a of the piece 3 is fitted into the rod 2 of the stilt, and the step board 4 is fitted and supported to the outer surface of the outer casing 3b in a truncated cone-shaped fitting hole 4a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a stilt plate mounting device for mounting a stilt plate on a stilt's buttocks.

  As a conventional tread board mounting device, there is one described in Japanese Utility Model Publication No. 52-6373 related to the registration of a utility model of the present applicant. This is because a straight inner cylinder and a frustoconical outer cylinder are integrally connected by radial ribs, and a piece of a piece formed by providing axial slits reaching the upper and lower end surfaces of the inner and outer cylinders in the inner cylinder. The tread is fitted into and supported by the outer surface of the outer cylinder in a frustoconical fitting hole. The tread plate applied here has a flat top surface, a cylindrical portion at the base, a frustoconical fitting hole that fits the outer cylinder of the piece piece, and parallel to the inner cylinder of the piece piece. A plurality of slits are provided, and the outer cylinder is provided with one slit.

Then, after the piece consisting of the inner and outer cylinders is fitted to the collar at an appropriate height position, if the tread is fitted to the outer cylinder with a frustoconical fitting hole, it fits with the outer cylinder. By fitting the taper-shaped unevenness with the hole, the tread plate is securely engaged with the piece piece, and the piece piece is squeezed from the periphery by the fitting of the tread plate, and this squeezes the inner cylinder through the rib Since the piece is strongly bound to the buttock, the tread is firmly attached to and supported by the buttock via the piece, and its disassembly is very easy. The height can be easily adjusted.
Japanese Utility Model Publication No. 52-6373

  In general, the stilt part of the stilt is composed of a metal pipe to form the buttock body, the outer surface of the buttock body is covered with a synthetic resin film, and the upper and lower ends of the buttock body are heat-shrinkable upper caps and lower parts. Each cap is configured. When the piece piece is fitted to the collar portion at an appropriate height, and the treadle is circumscribed and fitted to the outer cylinder through the frustoconical fitting hole, the piece piece has a single slit provided on the outer cylinder. The diameter of the inner cylinder is narrowed so as to be provided, but the inside of the hole of the inner cylinder does not necessarily become a complete cylindrical space, and the intimate contact with the surface of the collar portion becomes incomplete. For this reason, there is a problem that the piece piece may slide with respect to the buttocks, the tread plate is displaced, and the mounting height of the tread plate cannot be fixed.

  In the present invention, when the piece is fitted to the stilt of the stilt and the treadle is circumscribed by the frustoconical fitting hole to the outer cylinder of the piece, the inner cylinder becomes a substantially complete cylindrical space. An object of the present invention is to provide a tread board mounting device that can fix the tread board mounting height reliably without slipping of the piece with respect to the eaves section because the state of close contact with the surface of the eaves section becomes perfect.

  In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a straight inner cylinder and a frustoconical outer cylinder are integrally connected by radial ribs, and the inner cylinder has an axial direction reaching the upper and lower end surfaces. A plurality of slits are provided at equal angles, and the outer cylinder is aligned with the slits provided in the inner cylinder, and the axial direction reaches the other end face from the vicinity of one slit in the axial direction reaching the upper and lower end faces and one of the upper and lower end faces A stilt made by inserting a plurality of pieces of slits, each of which is provided with a plurality of slits, into a stilt of a stilt in its inner cylinder, and mounting and supporting a tread on the outer surface of the outer cylinder in a frustoconical fitting hole. This is a tread board mounting device.

  Further, in the invention according to claim 2, the piece piece is provided with a plurality of slits in the axial direction reaching the upper and lower end surfaces at an equal angle in the inner cylinder, and coincides with the slit provided in the inner cylinder in the outer cylinder, The stilt plate mounting device for a stilt according to claim 1, wherein one slit in the axial direction reaching the upper and lower end surfaces and a plurality of slits in the axial direction reaching the lower end surface from the vicinity of the upper end surface are provided.

  Further, in the invention according to claim 3, the piece piece is provided with a plurality of slits in the axial direction reaching the upper and lower end surfaces at an equal angle in the inner cylinder, and coincides with the slit provided in the inner cylinder in the outer cylinder, The stilt plate mounting device for a stilt according to claim 1, wherein one slit in the axial direction reaching the upper and lower end surfaces and a plurality of slits in the axial direction reaching the upper end surface from the vicinity of the lower end surface are provided.

  According to the present invention, when the piece is fitted to the collar portion and the treadle is circumscribed and fitted to the outer cylinder of the piece piece through the frustoconical fitting hole, the inner cylinder becomes a substantially complete cylindrical space. The contact state with respect to the surface of the part becomes perfect, and the mounting height of the tread board can be reliably fixed without slipping the piece piece with respect to the collar part.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.

  1 is a schematic perspective view of the first embodiment of the present invention, FIG. 2 is an exploded perspective view of the piece piece and the tread board in FIG. 1, FIG. 3A is a perspective view of the piece piece in FIG. 1, and FIG. The top view of a piece piece, (c) is the longitudinal cross-sectional view of the piece piece seen from the AA line of (b), (d) is the cross-sectional view of the piece piece seen from the BB line of (c). is there.

  1 and 2, a tread board attaching device 1 is attached to a stilt 2 of a stilt and includes a piece piece 3 and a tread board 4. The flange portion 2 is formed by covering the outer surface of a round cylindrical metal pipe with a synthetic resin film. A piece 3 is fitted to the collar 2 with a straight inner cylinder 3a, and a tread plate 4 is fitted to a frustoconical outer cylinder 3b of the piece 3, with a frustoconical fitting hole 4a. Is circumscribed.

  As shown in FIGS. 3A to 3D, the piece 3 has a straight inner cylinder 3a and a frustoconical outer cylinder 3b integrally connected by radial ribs 3c. Further, the piece 3 has a plate-like end wall in which the plurality of axial slits 3d reaching the upper and lower end surfaces are provided at equal angles in the inner cylinder 3a, and the peripheral edge of the slit 3d and the outer cylinder 3b are flat. 31 are integrally connected.

  Further, in the outer cylinder 3b, there are one slit 3e in the axial direction that reaches the upper and lower end surfaces, and a plurality of slits 3f in the axial direction that reach the lower end surface from the vicinity of the upper end surface, which coincide with the slits 3d provided in the inner cylinder 3a. Is provided.

  Further, the tread 4 protrudes downward from a base (front part) 4c of a footrest part 4b having a flat upper surface to form a cylindrical part 4d. On the back side of the cylindrical part 4d, an outer cylinder 3b of the piece 3 is formed. A frustoconical fitting hole 4a is provided.

  Next, a procedure for assembling a stilt by the tread board mounting device 1 will be described. The piece 3 is inserted into the stilt's buttock 2 at a height suitable for the user of the stilt. Then, if the tread plate 4 is circumscribed and fitted to the outer cylinder 3b of the piece piece 3 through the frusto-conical fitting hole 4a, the piece piece 3 is inserted by fitting the tapered irregularities between the outer cylinder 3b and the fitting hole 4a. On the other hand, the tread plate 4 is securely engaged. The piece 3 includes a plurality of axial slits 3d in the inner cylinder 3a at equal angles in the inner and outer cylinders 3a and 3b, and the peripheral edge of the slit 3d and the outer cylinder 3b are formed by a flat end wall 31. The outer cylinder 3b is integrally connected, and axial slits 3e and 3f are provided at equal angles.

  Therefore, when the piece 3 is squeezed from the periphery by the fitting of the tread plate 4, the inner and outer cylinders 3a, 3b are slits 3d provided at equal angles in the inner cylinder 3a and slits 3e provided at equal angles in the outer cylinder 3b. , 3f can be narrowed and the diameter of the piece 3 can be reduced at a plurality of equiangular positions, so that the inside of the hole of the inner cylinder 3a maintains the complete cylindrical space and the surface of the flange 2 The close contact state with respect to the frame becomes complete, and the piece piece 3 does not slide with respect to the collar portion 2.

  In the second embodiment, the tread board mounting device 1a according to the second embodiment may be the same in the flange 2 and the tread board 4 except that the structure of the piece 13 is different from that of the piece 3 in the first embodiment. Only the structure of the piece 13 will be described.

  FIG. 4 is a perspective view of a piece piece according to the second embodiment of the present invention. The piece 13 is formed by integrally connecting a straight inner cylinder 13a and a frustoconical outer cylinder 13b with radial ribs 13c. The piece 13 has a plate-shaped end wall in which the plurality of slits 13d in the axial direction reaching the upper and lower end surfaces are provided at equal angles in the inner cylinder 13a, and the peripheral edge of the slit 13d and the outer cylinder 13b are flat. 131 are integrally connected.

  Further, in the outer cylinder 13b, there are one slit 13e in the axial direction that reaches the upper and lower end surfaces, and a plurality of slits 13f in the axial direction that reach the upper end surface from the vicinity of the lower end surface, which coincide with the slits 13d provided in the inner cylinder 13a. Is provided. Since the procedure for attaching the tread board attaching device 1a to the stilt of the stilt is the same as that of the first embodiment, the description thereof is omitted here.

  As described above, according to the present invention, when the tread board attaching device is attached to the stilt of the stilt, the interval between the slits in which the piece pieces are equiangular with respect to the surface of the heel part is reduced, Since the diameter is reduced at a plurality of equiangular positions, the piece is strongly bonded and supported by the collar while maintaining the hole of the inner cylinder in a complete cylindrical shape.

It is a schematic perspective view of Example 1 of the present invention. It is a disassembled perspective view of the piece piece and tread in FIG. (A) is a perspective view of the piece piece in FIG. 1, (b) is a plan view of the piece piece, (c) is a longitudinal sectional view of the piece piece as viewed from line AA in (b), (d) is ( It is the cross-sectional view of the piece piece seen from the BB line of c). It is a perspective view of the piece piece in Example 2 of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tread board attaching apparatus 2 Saddle part 3 of stilts 3,13 Piece piece 3a, 13a Inner cylinder 3b, 13b Outer cylinder 3c Rib 3d, 3e, 3f, 13d, 13e, 13f Slit 4 Tread board 4a Fitting hole 4b Footrest part 4c Base 4d cylindrical part 31,131 end wall

Claims (3)

  A straight inner cylinder and a frustoconical outer cylinder are integrally connected by radial ribs, and in the inner cylinder, a plurality of axial slits reaching the upper and lower end surfaces are provided at equal angles, and in the outer cylinder, A piece piece formed by providing a single slit in the axial direction reaching the upper and lower end faces and a plurality of slits in the axial direction reaching the other end face from the vicinity of one of the upper and lower end faces, corresponding to the slits provided in the inner cylinder, A stilt tread mounting apparatus in which an inner cylinder is fitted into a stilt collar and a tread is fitted and supported on an outer surface of the outer cylinder in a frustoconical fitting hole.   The piece has a plurality of slits in the axial direction reaching the upper and lower end surfaces in the inner cylinder at an equal angle, and in the outer cylinder, one slit in the axial direction reaching the upper and lower end surfaces coincides with the slit provided in the inner cylinder. The stilt plate mounting device for stilts according to claim 1, wherein a plurality of slits in the axial direction extending from the vicinity of the slit and the upper end surface to the lower end surface are provided.   The piece has a plurality of slits in the axial direction reaching the upper and lower end surfaces in the inner cylinder at an equal angle, and in the outer cylinder, one slit in the axial direction reaching the upper and lower end surfaces coincides with the slit provided in the inner cylinder. 2. The stilt plate mounting device for stilts according to claim 1, wherein a plurality of slits in the axial direction reaching the upper end surface from the vicinity of the lower end surface and the lower end surface are provided.

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