JP5238607B2 - Caps and pipes with caps - Google Patents

Description

  The present invention relates to a cap and a pipe material with a cap for closing an end opening of a pipe material such as a vertical beam, a horizontal beam, and a column used for a fence, a fence, a fence, and the like.

  In general, pipes such as vertical bars, horizontal bars, columns, etc. used in fences and fences, or guard fences provided at the boundary of the site and adjacent areas of houses and factories, have a circular cross section, a rectangular cross section, or a design. A material having an increased shape or the like is used, and these are used by appropriately cutting a cylindrical member having a hollow portion inside a steel pipe or an aluminum extrusion mold material. Therefore, at the cut ends of these pipe materials, caps prevent intrusion of rainwater, etc. into the pipe materials, and injury even if a passerby who passes near the fence touches the ends of the pipe materials. Is installed.

  Caps can be externally fitted to pipe material, internally fitted to pipe material, joined with cap and pipe material with fastening members such as screws and bolts, and means for welding cap and pipe material There have been proposed those which are bonded by a bonding means using an adhesive or an adhesive, or a combination thereof.

  For example, in Patent Document 1, a core material having a shape that can be loosely fitted to the inside of the hollow handrail from an end plate that covers the end surface of the hollow handrail protrudes, and the inner shape of the hollow handrail follows the outer periphery of the core material. A handrail end cap has been proposed in which a thin ring-like ring having a shape and a little elasticity is provided in a protruding manner, and the ring is provided at least at the tip position of the core member.

  Further, Patent Document 2 discloses a substrate, a peripheral wall continuously provided at the peripheral edge of the substrate, and an outwardly extending relationship provided at the tip of an arm extending from the bottom surface of the peripheral wall of the substrate and having an intermediate portion elastically deformable. A retaining pawl is provided, the inner surface of the peripheral wall is opposed to the building member from the outside, and the outward locking pawl is located inside the building member together with the arm, and is engaged from the inside to the locking hole provided in the building member. An end cap for a building member has been proposed in which the locking hole is covered with a peripheral wall.

Japanese Utility Model No. 2571058 Japanese Patent Laid-Open No. 10-2173

  However, since the handrail end cap is for fixing the cap to the hollow handrail using the elasticity of the thin plate-shaped ring, if the elasticity of the ring is large, the fixed state of the cap becomes strong, The problem was that it was difficult to insert the cap inside the hollow handrail.

  Also, the end cap is also fixed to the interior of the building member by using the elasticity of the arm. If the locking claw is highly elastic for the same reason as described above, the end cap is fixed. Although the state became strong, the problem was that it was difficult to attach the locking claws.

  The present invention is intended to solve the above-described problems and provide a cap and a pipe material with a cap that can be easily applied to the pipe material.

  In order to achieve the above object, the present invention is configured as follows.

  That is, the cap according to the present invention is a cap attached to the opening end of the pipe material, the cap covering the opening end of the pipe material and the inner side of the pipe material extending from the lid. The insertion portion is formed in an inclined shape with respect to the lower end surface of the lid portion opposed to the opening end surface of the pipe material.

  Further, the pipe material with a cap according to the present invention has the cap attached to the opening end portion of the pipe material, and the lower end surface of the lid portion in which the insertion portion of the cap material is inserted inside the pipe material is made of the pipe material. It is characterized by being along the opening end face.

  According to the cap of the present invention, the cap includes a lid portion that covers the opening end of the pipe material, and an insertion portion that extends from the lid portion and is inserted into the pipe material. Since the cap is formed to be inclined with respect to the lower end surface of the lid portion opposed to the opening end surface of the pipe material, if the insertion portion of the cap is inserted parallel to the longitudinal direction of the pipe material, It is possible to provide a relatively large gap between the inner wall surface of the wall surface and the pipe material, and the insertion portion is in contact with the inner wall surface of the pipe material, so that problems such as wear hardly occur, and the cap insertion operation is facilitated. And if the lower end surface of the lid portion is opposed to the opening end surface, the insertion portion can be inclined inside the pipe material, so the cap is fixed by maintaining this inclined state so as not to return. be able to.

  According to the pipe material with a cap according to the invention, the cap is attached to the opening end portion of the pipe material, and the lower end surface of the lid portion in which the insertion portion of the cap material is inserted inside the pipe material is the pipe material. Since it is along the opening end face, the cap can be fixed to the pipe material without rattling.

It is a front view which shows one Embodiment in the attachment structure of the cap which concerns on this invention. It is a schematic explanatory drawing of the principal part of FIG. FIG. 3 is an exploded explanatory view of FIG. 2. FIG. 3 is an exploded explanatory view of FIG. 2. FIG. 2 is an exploded explanatory view showing a first embodiment of the cap attachment structure of FIG. 1. It is a decomposition explanatory view showing a second embodiment of the cap attachment structure of FIG. It is a decomposition explanatory view showing a third embodiment of the cap attachment structure of FIG. It is explanatory drawing of the cap of FIG. It is explanatory drawing of the principal part of FIG.

  Next, the best mode for carrying out the present invention will be specifically described with reference to the drawings.

  In FIG. 1, 1 is a pipe material, 2 is a cap 2 attached to the opening end of the pipe material 1, and the pipe material with a cap according to the present invention is mainly composed of the pipe material 1 and the cap 2. ing. FIG. 1 shows a fence F using a column 11 and a vertical beam 12 as the pipe material 1. In other words, the fence F is provided with a plurality of support posts 11 standing at intervals, a plurality of horizontal rails 13 are attached between the support posts 11 at intervals in the vertical direction, and a plurality of vertical rails are further provided between the horizontal rails 13. A crosspiece 12 is constructed. The pipe material 1 is generally used by cutting a cylindrical body into an appropriate length, and a metal material such as a steel material, a stainless alloy, and an aluminum alloy is preferably used.

  2 is an explanatory view of the upper end portion of the vertical beam 12 of FIG. 1, (a) is an enlarged front view, (b) is an enlarged side view, and (c) is a sectional view taken along line AA in (a). It is. The cross-sectional shape of the vertical beam 12 used as the pipe material 1 is generally circular, rectangular, elliptical, etc., but is not particularly limited, and a combination of circular and rectangular as shown in (c). The shape may be different.

  Next, the cap 2 is attached to the opening end 14 at the top of the vertical beam 12. The cap 21 covers the opening end 14 and extends from the lid 21 to the inside of the vertical beam 12. And an insertion portion 22 to be inserted. In the present embodiment, the upper portion of the lid portion 21 has a triangular shape in a side view, but a shape can be appropriately selected in consideration of design properties, moldability, and the like. In addition, the insertion portion 22 has a cylindrical shape with a hollow portion formed therein in the present embodiment, but may have a solid form without providing the hollow portion.

  Such a cap 2 is generally manufactured by molding such as synthetic resin injection molding or metal mold molding, and is preferable because it is easy to process and mass-produce.

  Then, the attachment structure of the pipe material 1 and the cap 2 which concerns on this embodiment is demonstrated. As shown in FIG. 2C, the inner surface of the pipe member 1 is mainly composed of two pairs of opposed surface portions 16 and 17. The form of the surface portions 16 and 17 is not particularly limited. For example, the opposing surface portions may be formed in a flat plate shape or a curved surface shape, and one surface portion may be a flat plate shape as in this embodiment. The other surface portion facing each other may be formed in a curved shape. As shown in FIG. 2, the opening end face 15 of the pipe material 1 is formed substantially perpendicular to the longitudinal direction of the pipe material 1.

  FIG. 3 is a partially exploded explanatory view of the pipe material 1 and the cap 2, (a) is a front view, (b) is a side view, (c) is a cross-sectional view taken along line BB, and (d) is C It is sectional drawing in the -C line. In the cap 2, the insertion portion 22 is formed in an inclined shape from the lower end portion 23 of the lid portion 21 that faces the opening end portion 14 of the pipe material 1. That is, the insertion portion 22 is slightly reduced in shape with respect to the inner shape of the pipe material 1 to have substantially the same shape, and includes two pairs of opposing face portions 24 and 25. And when the said lower end part 23 was made to oppose the opening edge part 14 of the pipe material 1, one surface part 24 and 24 is inclined in the same direction with respect to the surface parts 16 and 16 of the inner surface of the pipe material 1, respectively. The other surface portions 25 and 25 are formed in parallel with the surface portions 17 and 17 on the inner surface of the pipe material, respectively. The surface portions 24 and 24 and the surface portions 25 and 25 are provided substantially parallel to each other.

  FIG. 4 is an explanatory diagram when the cap 2 is inserted into the pipe member 1. As shown to (a), since the clearance gap between the surface part 16 and the surface part 24 will become large if the cap 2 is inclined so that the said surface parts 24 and 24 may become substantially parallel to the surface parts 16 and 16, the pipe material 1 It is possible to easily insert the insertion portion 22 into the interior. Subsequently, the lower end surface 23 a of the lid portion 21 having an acute angle with the surface portion 24 of the insertion portion 22 is brought into contact with the opening end surface 15 of the pipe material 1.

When the lower end portion 23 of the cap 2 is tilted in a direction opposite to the opening end portion 14 of the pipe member 1 with the contact portion as a fulcrum, the angle formed with the surface portion 24 of the insertion portion 22 is an obtuse angle below the lid portion 21. When the end surface 23b approaches the opening end surface 15 and the lower end surface 23 is moved in the direction along the opening end surface 15, the lower portion of the surface portion 24a of the insertion portion 22 extended from the lower end surface 23a side is the surface portion of the pipe material 1. The upper part of the surface part 24b of the insertion part 22 extended from the lower end part 23b side is contact | abutted to the surface part 16b of the pipe material 1 while being contact | abutted to 16a.

  Further, when the lower end surface 23 b of the lid portion 21 approaches the opening end surface 15, the contact portions are respectively pressed and the insertion portion 22 cannot move inside the pipe 1.

  FIG. 5 is an explanatory view showing a first embodiment of the fixing structure of the cap 2 to the pipe material 1. In a state in which the insertion portion 22 cannot move inside the pipe 1, the fixing screw B is screwed into the insertion portion 22 from the through hole 18 provided in the pipe 1, so that the surface portion of the insertion portion 22 is inserted. The state in which 24 a and 24 b are press-fitted on the surface portions 16 a and 16 b of the pipe material 1 is maintained, and the cap 2 is fixed to the pipe material 1. In the present embodiment, since both the surface portion 16a and the facing 24a are semi-cylindrical, the displacement of the insertion portion 2 in the direction of the surface portion 25 can be suppressed in the press-fitted state.

  In the present embodiment, the fixing screw B is screwed from the through hole 18 of the pipe material 1 toward the surface portion 24b of the insertion portion 22. However, any pipe material can be used as long as it can maintain the press-fitted state. 1 may be screwed toward the surface portion 24a, or may be screwed toward the surface portion 25. Further, the fixing screw B may be configured to press the outer peripheral surface of the insertion portion 22 as long as the press-fitted state can be maintained.

  As the inclination angles α and β of the insertion portion 22 of the cap 2 shown in FIG. 5 are increased, it becomes easier to insert the insertion portion 22 into the pipe material 1, but the width dimension in the inclination direction of the insertion portion 22 is shortened. In the present embodiment, there is a risk that the strength of the insertion portion 22 may decrease, and problems such as rattling of the insertion portion 22 are likely to occur inside the pipe member 1. -5 degrees, preferably 2.5-3.5 degrees.

  FIG. 6 is an explanatory view showing a second embodiment in the structure for fixing the cap 2 to the pipe material 1. Compared with the fixing method shown in FIG. 5, the method for maintaining the press-fit state is different, and the other forms are the same. That is, as shown in (a), a protrusion 26 is provided on the outer peripheral surface of the insertion portion 22 of the cap 2, and the insertion portion 22 is inserted into the pipe material 1, and as shown in (b), the cap When the lower end surface 23 of the lid portion 21 is moved in the direction along the opening end surface 15 of the pipe material 1 and is in the press-fitted state, as shown in FIG. 1 is inserted into and locked in the locking hole 19 provided in 1 to maintain the press-fitted state.

  In the present embodiment, the protrusion 26 is provided on the surface portion 24b of the insertion portion 22, and when the insertion portion 22 is inserted into the pipe member 1, as shown in FIG. , 24b are arranged and inserted so as to be substantially parallel to the surface portions 16a, 16b of the pipe 1, the friction between the projection 26 and the inner wall surface of the pipe material 1 is reduced, and the insertion operation is facilitated. As long as the press-fitted state can be maintained, the projection 26 may be provided on the surface portion 24a and the locking hole 19 may be provided at the position of the corresponding pipe material 1.

  The locking hole 19 penetrates the pipe material 1 and is preferable because the locking insertion of the projection 26 can be easily confirmed from the outside of the pipe material 1, but the projection 26 is locked. If it exists, it may be formed with a bottom from the inner surface of the pipe member 1 toward the outer side so that the protrusions 26 cannot be seen from the outside.

  FIG. 7 is an explanatory view showing a third embodiment of the fixing structure of the cap 2 to the pipe material 1. Compared to the fixing method shown in FIG. 6, the shape of the insertion portion 22 provided with the protrusion 26 is different, and the other shapes are the same. 8A and 8B are explanatory views of the cap 2 according to the present embodiment, in which FIG. 8A is a side view, FIG. 8B is a cross-sectional view taken along line DD, and FIG. 8C is a cross-sectional view taken along line EE. That is, the insertion part 22 is provided with a hollow part inside, and a cut line 27 is formed along the longitudinal direction at intervals, and a gap part 27 is formed as a bridging part 28 that can be elastically deformed inward. A protrusion 26 is provided on the bridging portion 28.

  Therefore, when the insertion portion 22 is inserted into the pipe material 1, the bridging portion 28 is elastically deformed inward even if the top portion 29 of the projection 26 contacts the inner wall surface of the pipe material 1. Since the wear of the top portion 29 is suppressed, when the projection 26 is inserted and locked in the locking hole 19, the insertion depth of the projection 26 becomes deeper and the locking state is stronger. It becomes.

  FIG. 9 is an explanatory view showing a modification of the implementation of the pipe material with a cap using the column 11 of the fence F as the pipe material 1. Compared with the pipe material with the cap shown in FIG. 7, the cross-sectional shape of the support column 11 as the pipe material 1 extends in the front-rear direction of the fence F, and the head portion of the cap 2 and the insertion portion 22 attached to the support column 11. Similarly, the cross-sectional shape is different in that it extends in the front-rear direction of the fence F, and the other forms are the same.

  Although not shown, a method of fixing the cap 2 with the fixing screw B as shown in FIG. 5 and a protrusion 26 provided on the cap 2 as shown in FIGS. It is also possible to combine the methods of locking and fixing to each other.

  According to the present invention, since the cap can be easily applied to the pipe material, the pipe material can be suitably used for a column or a crosspiece used in an outer structure such as a fence or a fence or a protective fence.

DESCRIPTION OF SYMBOLS 1 Pipe material 11 Support | pillar 12 Vertical beam 13 Horizontal beam 14 Open end part 15 Open end surface 16, 17 Surface part 18 Through hole 19 Locking hole 2 Cap 21 Lid part 22 Insertion part 23 Lower end part 24, 25 Surface part 26 Protrusion 27 Break 28 Bridge 28 Part 29 Top B Fixed screw F Fence

Claims (2)

  A cap attached to an open end of a pipe material, the cap comprising a lid that covers the open end of the pipe material, and an insertion portion that extends from the lid and is inserted into the pipe material. The cap is characterized in that the insertion portion is formed in an inclined shape with respect to the lower end surface of the lid portion opposed to the opening end surface of the pipe material.   The cap according to claim 1 is attached to the opening end portion of the pipe material, and the lower end surface of the lid portion into which the insertion portion is inserted inside the pipe material is aligned with the opening end surface of the pipe material. Characterized pipe material with cap.

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