JP2015102218A - Protector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protector capable of improving working efficiency during attachment to a tubular member and replacement thereof.SOLUTION: A protector 10 includes: a plurality of tubular parts 12 that are externally inserted into a hose 14 and protect the hose; and a projected part (engaging part) 12C projecting axially from an end surface 12B on one end in an axial direction of the tubular parts 12. The protector 10 further includes a recessed part (engaged part) 12E to be coupled with other tubular part 12 in the axial direction by engagement of the projected part 12C disposed on other tubular part 12 with an end surface 12D on the other end in the axial direction of the tubular part 12.

Description

  The present invention relates to a protector for protecting a tubular member.

  Conventionally, a protective material for protecting a tubular member such as a hose is known.

  As such a protective material, what protects the outer peripheral surface of a hose with a protective material is known, for example by winding a helical protective material around the outer peripheral surface of a hose on the spot (site).

  However, such a protective material requires an operation of attaching a spiral protective material to the outer peripheral surface of the hose at the site, and the installation operation is complicated. In addition, when the protective material is replaced, a new protective material is attached to the hose after the spiral protective material is removed from the hose, which requires a large number of work steps.

  For this reason, in Patent Document 1 below, an impact resistant layer in which a metal wire or a resin cord is spirally wound is provided on the outer peripheral surface of the outer rubber layer of the high pressure rubber hose, and a cover layer is provided on the impact resistant layer. A stacked structure is disclosed. In this structure, since the impact resistant layer is integrally provided on the hose on the outer rubber layer, it is not necessary to separately attach a protective material to the hose (the protective material can be omitted).

JP 2004-239415 A

  In the structure described in Patent Document 1, since the impact resistant layer is integrally provided on the hose on the outer rubber layer and the cover layer is laminated on the impact resistant layer, the outer cover layer is damaged. Furthermore, it is impossible to repair only the cover layer or replace the cover layer, and there is room for improvement.

  In addition, for example, a protective material is attached to the outer peripheral surface of the hose before delivery of the hose, but such a protective material is already incorporated in the hose, and the product itself is replaced when the protective material is repaired. There is a need.

  This invention is made | formed in view of the said problem, and it aims at providing the protector which can improve the workability | operativity at the time of attachment to a tubular member and replacement | exchange.

  In order to solve the above-described problems, a protector according to the invention described in claim 1 is extrapolated to a tubular member to protect the tubular member, and one axial end of the tubular portion. The engagement portion provided in the axial direction from the end surface of the cylindrical portion and the end surface on the other axial end side of the cylindrical portion, and provided in the other cylindrical portion By being engaged, the engaging portion has another engaged portion connected to the other cylindrical portion along the axial direction.

  According to the first aspect of the present invention, the protector includes a plurality of cylindrical portions, and the plurality of cylindrical portions are extrapolated to the tubular member. An engaging portion is provided in the axial direction from the end surface of the cylindrical portion on one axial end side of the cylindrical portion, and an engaged portion is provided on the end surface on the other axial end side of the cylindrical portion. ing. Then, the engagement portion provided on the other cylindrical portion is engaged with the engaged portion provided on the end surface on the other axial end side of the cylindrical portion, so that the cylindrical portion and the other cylinder are engaged. A shape part is connected along an axial direction. Thereby, the some cylindrical part extrapolated by the tubular member is connected along an axial direction, and a tubular member can be protected by a some cylindrical part. Also, when replacing the protector, disengage the engaged portion of the cylindrical portion from the engaging portion of the other cylindrical portion, and install a plurality of new cylindrical portions by the same operation as above. Since it should just connect, workability | operativity can be improved.

  According to a second aspect of the present invention, in the protector according to the first aspect, the engagement portion is engaged with an engaged portion of the cylindrical portion disposed at a position adjacent in the axial direction. And the clearance gap is provided between the end surface of the said cylindrical part, and the end surface of the said cylindrical part arrange | positioned adjacently.

  According to the second aspect of the present invention, the engagement portion is engaged with the engaged portion of the cylindrical portion disposed at a position adjacent to the axial direction, and is adjacent to the end surface of the cylindrical portion. A gap is provided between the end surface of the cylindrical portion disposed in the. Thereby, when a some cylindrical part is connected, the distance of a clearance gap can change a some cylindrical part following a bending deformation of a tubular member.

  According to a third aspect of the present invention, in the protective device according to the first or second aspect, a cut portion that extends in the entire axial direction is provided on the peripheral surface portion of the cylindrical portion.

  According to the invention described in claim 3, the peripheral surface portion of the cylindrical portion is provided with the cut portion extending in the entire axial direction. For this reason, when attaching a cylindrical part to a tubular member, or removing a cylindrical part from a tubular member, the attachment to a tubular member or a tubular member is easily performed by expanding the space between the notches to the diameter of the tubular member or more. It becomes possible to remove from.

  According to a fourth aspect of the present invention, in the protective device according to any one of the first to third aspects, the plurality of cylindrical portions are colored or the axial length of the plurality of cylindrical portions. The structure is different.

  According to invention of Claim 4, a some cylindrical part is colored or it is set as the structure from which the length of the axial direction of a some cylindrical part differs, According to the kind and application of a hose A cylindrical part can be selected.

  The invention according to claim 5 is the protective device according to any one of claims 1 to 4, wherein the engaging portion is a convex portion protruding from an end surface of the cylindrical portion, The engaged portion is a concave portion formed on an end surface of the cylindrical portion.

  According to the invention described in claim 5, two cylindrical shapes can be easily obtained by engaging the convex portion protruding from the end surface of the cylindrical portion with the concave portion formed on the end surface of the other cylindrical portion. The parts can be connected, and workability is improved.

  According to the protector which concerns on this invention, the workability | operativity at the time of attachment to a tubular member and replacement | exchange can be improved.

FIG. 1A is a side view showing a cylindrical portion used in the protector according to the first embodiment of the present invention, and FIG. 1B is a perspective view showing the cylindrical portion. (C) is a side view which shows the state which has arrange | positioned two cylindrical parts to an axial direction. FIG. 2 is a side view showing a state in which a plurality of cylindrical parts used in the protector shown in FIG. 1 are extrapolated to a hose and the plurality of cylindrical parts are connected. FIG. 3 is a side view showing a state in which a plurality of cylindrical portions used in the protector according to the second embodiment of the present invention are connected in the axial direction. FIG. 4 is a side view showing a cylindrical portion used in a protector according to a third embodiment of the present invention. FIG. 5: is a side view which shows the cylindrical part used for the protector which concerns on 4th Embodiment of this invention. FIG. 6 is a perspective view showing a cylindrical portion used in a protector according to a fifth embodiment of the present invention. FIG. 7 is a side view showing a state in which the protective material of the first comparative example is attached to the hose. FIG. 8 is a side view showing a state in which the protective material of the second comparative example is attached to the hose.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a protector according to a first embodiment of the present invention. As shown in FIG. 1C, the protective device 10 includes a plurality of cylindrical portions 12. In FIG. 1C, two cylindrical portions 12 are shown, but the number is not limited to two, and is intended to include two or more cylindrical portions 12.

  As shown in FIGS. 1A to 1C, the cylindrical portion 12 includes a main body portion 12A formed in a substantially cylindrical shape, and an end surface 12B on one end side in the axial direction of the main body portion 12A in the axial direction. And a protruding portion 12C as a protruding engaging portion. Further, the cylindrical portion 12 includes a concave portion 12E as an engaged portion provided on the end surface 12D on the other axial end side of the main body portion 12A.

  12 C of convex parts are made into the shape which protrudes from the end surface 12B in a substantially semicircle shape by side view. Two convex portions 12C are formed at positions (180 ° positions) facing the end surface 12B of the main body portion 12A (see FIG. 1B). The concave portion 12E has a shape that is recessed in a substantially semicircular shape on the end surface 12D of the main body portion 12A in a side view. Two concave portions 12E are formed at opposite positions (180 ° positions) of the end surface 12D of the main body portion 12A (see FIG. 1B).

  The concave portion 12E has a shape with which the convex portion 12C can be engaged, and the diameter B of the concave portion 12E (the length of the main body portion 12A) is larger than the diameter A of the convex portion 12C (the circumferential length of the main body portion 12A). The length in the circumferential direction is set large (B> A, see FIG. 1A). Thereby, the convex part 12C of the other cylindrical part 12 is engaged with the concave part 12E of the one cylindrical part 12, so that the other cylindrical part 12 is axially connected to the one cylindrical part 12. (See FIG. 2).

  As shown in FIG. 2, the plurality of cylindrical portions 12 constituting the protective device 10 are configured to be extrapolated to a hose 14 as a tubular member. That is, the inner diameter of the cylindrical portion 12 is set larger than the outer diameter of the outer peripheral surface 14 </ b> A of the hose 14. And in the state where the several cylindrical part 12 was extrapolated by the hose 14, the convex part of the other cylindrical part 12 is set to the concave part 12E of one cylindrical part 12 among the adjacent cylindrical parts 12. By engaging 12C, the plurality of cylindrical portions 12 are sequentially connected along the axial direction sequentially. Thereby, 14 A of outer peripheral surfaces of the hose 14 are protected by the protector 10 with which the some cylindrical part 12 was connected along the axial direction.

  Although the material of the cylindrical part 12 is not specifically limited, In this embodiment, hard resin which consists of polyurethane etc. can be used.

  Next, the operation and effect of the protective device 10 of the present embodiment will be described.

  The some cylindrical part 12 which comprises the protector 10 is prepared in the state mutually separated. And the some cylindrical part 12 which comprises the protector 10 is extrapolated to the hose 14, respectively. After that, among the plurality of cylindrical portions 12 arranged so as to be adjacent to each other along the axial direction of the hose 14, the convex portion 12C of the other cylindrical portion 12 is formed on the concave portion 12E of the one cylindrical portion 12. Engage.

  For example, as shown in FIG. 2, the convex part 12C of the cylindrical part 12 arranged on the left side is engaged with the concave part 12E of the cylindrical part 12 arranged on the rightmost side in the axial direction. The operation of engaging the concave portion 12E of the cylindrical portion 12 with the convex portion 12C of the cylindrical portion 12 arranged on the left side is repeated. Thereby, the some cylindrical part 12 is sequentially connected along an axial direction, and the protector 10 by which the some cylindrical part 12 was continuously connected to the hose 14 can be attached. Thereby, 14 A of outer peripheral surfaces of the hose 14 as a long product can be easily protected from a damage | wound (skin wound) and heat | fever with the protector 10. FIG. Moreover, since the some cylindrical part 12 is provided with the convex part 12C and the concave part 12E, also with respect to the bending of the hose 14, there is a certain degree of freedom in the bending of the protective device 10.

  Further, when the protector 10 is exchanged, the plurality of cylindrical portions 12 are detached from the hose 14 by disengaging the convex portions 12C and the concave portions 12E of the adjacent cylindrical portions 12 from each other. The cylindrical portion 12 can be removed. For this reason, only the protector 10 can be easily attached and detached from the hose 14.

  In such a protector 10, the protector 10 can be easily attached to the hose 14 before delivery of the product or at the site (site), and workability at the time of attachment is improved. In addition, the protector 10 can be easily replaced with the hose 14 at the site, and workability at the time of replacement is improved. For example, when the protector 10 is used in a state where it is attached to the hose 14, the protector 10 can be easily replaced when the protector 10 is damaged.

In particular, if the protective device is substantially cylindrical, it may rotate during use, and a cutout portion may be generated in the direction of interference with other members. In the protector 10 of this embodiment, since the cylindrical shape of each cylindrical part 12 has unevenness | corrugation difference by providing the several cylindrical part 12, rotation adhesiveness of the several cylindrical part 12 and the hose 14 is provided. The protective device 10 can be made more difficult to rotate.
In addition, when the protector 10 is added at the time of piping on site, the new tubular portion 12 can be easily connected to the existing tubular portion 12.

  The plurality of cylindrical portions 12 can be colored. Moreover, it can change by changing the length of the axial direction of the some cylindrical part 12, respectively. For example, when the cylindrical portion 12 is colored, it can be used for pipe identification by a combination of red, black, and red. Moreover, the appropriate cylindrical part 12 can be easily attached to the hose 14 by changing the color tone of the cylindrical part 12 of a different size according to the size (hose diameter) of the hose 14. For this reason, the cylindrical part 12 can be easily attached to the hose 14 with the color tone and length required by the user. Moreover, the cylindrical part 12 can be selected according to the kind and application of the hose 14.

  FIG. 7 shows the protective material 100 of the first comparative example. This protective material 100 consists of a cylindrical member, and is previously attached to the outer peripheral surface 102A of the hose 102 before delivery of the hose. This protective material 100 needs to be attached to the hose 102 before crimping a fitting (not shown). That is, when the product is delivered, the protective material 100 is already incorporated in the hose 102, and when the protective material 100 is repaired, it is necessary to replace the product itself.

  FIG. 8 shows the protective material 120 of the second comparative example. The protective material (plummer) 120 is formed of a spiral member, and is attached to the hose 122 by winding the protective material 120 around the outer peripheral surface 122A of the hose 122 at the site (site). However, the work of attaching the spiral protective material 120 to the outer peripheral surface 122A of the hose 122 at the site is complicated. Further, when the protective material 120 is replaced, since the new protective material 120 is attached to the hose 122 after the protective material 120 is removed from the hose 122, the number of work steps increases.

  On the other hand, in the protector 10 of this embodiment, since the several cylindrical part 12 can be connected along an axial direction, the protector 10 can be easily attached to the hose 14 before product delivery or on-site. Can be attached. In addition, the protective device 10 can be easily exchanged at the site.

  Next, the protector of 2nd Embodiment of this invention is demonstrated using FIG. In addition, the same code | symbol is attached | subjected to the member same as 1st Embodiment, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 3, the protector 20 includes a plurality of cylindrical portions 22. The cylindrical portion 12 includes a convex portion 22A as an engaging portion that protrudes in the axial direction from the end surface 12B on one axial end side of the main body portion 12A. Furthermore, the cylindrical portion 22 includes a concave portion 22B as an engaged portion provided on the end surface 12D on the other axial end side of the main body portion 12A.

  The convex portion 22A includes a substantially rectangular extension portion 24A extending in the axial direction from the end surface 12B of the main body portion 12A in a side view, and a substantially circular disc portion 24B provided at the tip of the extension portion 24A. And. Two convex portions 22A are formed at opposite positions (180 ° positions) of the end surface 12B of the main body portion 12A.

  The concave portion 22B has a shape that is recessed in a substantially circular shape from the end surface 12D of the main body portion 12A in a side view. The inner diameter of the concave portion 22B is slightly larger than the outer diameter of the disc portion 24B. The concave portion 22B includes a hole portion 24C through which the extended portion 24A can be inserted, the extended portion 24A is inserted into the hole portion 24C, and the disc portion 24B can be engaged with the concave portion 22B. . Two concave portions 22B are formed at opposite positions (180 ° positions) of the end surface 12D of the main body portion 12A.

  In such a protector 20, in the state where the plurality of cylindrical portions 22 are extrapolated to the hose 14 (see FIG. 2), the concave portions 22B of one cylindrical portion 22 among the adjacent cylindrical portions 22 are formed. By engaging the convex portion 22A of the other cylindrical portion 22, the plurality of cylindrical portions 22 are sequentially connected along the axial direction. Thereby, 14 A of outer peripheral surfaces of the hose 14 can be protected with the protector 20 with which the some cylindrical part 22 was connected along the axial direction.

  At this time, by providing the extended portion 24A on the convex portion 22A, a gap S is formed between the end surface 12B of one cylindrical portion 22 and the end surface 12D of the other cylindrical portion 22 that are arranged adjacent to each other. Is provided. For example, the gap S is preferably set to 1 mm or more. Thereby, the distance of the clearance gap S provided between end surface 12B, 12D of the some cylindrical part 22 changes, and makes the some cylindrical part 22 track the bending deformation of the hose 14 (refer FIG. 2). (The bending deformation of the hose 14 can be absorbed).

  Next, the protector of 3rd Embodiment of this invention is demonstrated using FIG. In addition, the same code | symbol is attached | subjected to the member same as 1st and 2nd embodiment, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 4, the protector 30 includes a plurality of cylindrical portions 32. In FIG. 4, one cylindrical portion 32 is shown and the other cylindrical portions 32 are omitted. The cylindrical portion 32 includes a convex portion 32A as an engaging portion protruding in the axial direction from one end surface 12D in the axial direction of the main body portion 12A, and an engaged state provided on the other end surface 12B in the axial direction of the main body portion 12A. And a concave portion 32B as a portion.

  The convex portion 32A is formed in a substantially rectangular shape in a side view, and has a shape in which the width of the tip portion is larger than the width on the end surface 12D side. Two convex portions 32A are formed at opposite positions (180 ° positions) of the end surface 12D of the main body portion 12A.

  The concave portion 32B has a shape that is recessed in a substantially rectangular shape in a side view, and has a shape in which the width on the back side in the recess direction is larger than the width on the end surface 12B side. The size of the concave portion 32B is slightly larger than the size of the convex portion 32A. Two concave portions 32B are formed at opposite positions (180 ° positions) of the end surface 12B of the main body portion 12A.

  In such a protector 30, in the state where the plurality of cylindrical portions 32 are extrapolated to the hose 14 (see FIG. 2), the concave portions 32B of one cylindrical portion 32 of the adjacent cylindrical portions 32 are formed. By engaging the convex portion 32A of the other cylindrical portion 32, the plurality of cylindrical portions 32 are sequentially connected along the axial direction. Thereby, 14 A of outer peripheral surfaces of the hose 14 can be protected with the protector 30 with which the some cylindrical part 32 was connected along the axial direction.

  Next, the protector of 4th Embodiment of this invention is demonstrated using FIG. In addition, the same code | symbol is attached | subjected to the member same as 1st-3rd embodiment, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 5, the protector 40 includes a plurality of cylindrical portions 42. In FIG. 5, one cylindrical portion 42 is shown and the other cylindrical portions 42 are omitted. The cylindrical portion 42 is a substantially rectangular convex portion 32A as an engaging portion protruding in the axial direction from the end surface 12B of the main body portion 12A, and a substantially engaged portion as an engaged portion provided on the end surface 12D of the main body portion 12A. And a rectangular concave portion 32B.

  Compared with the cylindrical part 32 shown in FIG. 4, the cylindrical part 42 of this embodiment has the number of the convex parts 32A and the concave parts 32B increased twice. That is, four convex portions 32A are formed at approximately 90 ° positions on the end surface 12B of the main body portion 12A, and four concave portions 32B are formed at approximately 90 ° positions on the end surface 12D of the main body portion 12A. ing.

  In such a protector 40, in the state where a plurality of cylindrical portions 42 are extrapolated to the hose 14 (see FIG. 2), the concave portions 32 </ b> B of one cylindrical portion 42 among the adjacent cylindrical portions 42. By engaging the convex portion 32A of the other cylindrical portion 42, the plurality of cylindrical portions 42 are sequentially connected along the axial direction. Thereby, 14 A of outer peripheral surfaces of the hose 14 can be protected with the protector 40 with which the some cylindrical part 42 was connected along the axial direction. In the protector 40 of this embodiment, the connection of the some cylindrical part 42 becomes stronger by increasing the number of the convex parts 32A and the concave parts 32B.

  Next, the protector of 5th Embodiment of this invention is demonstrated using FIG. In addition, the same code | symbol is attached | subjected to the member same as 1st-4th embodiment, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 6, the protector 50 includes a plurality of cylindrical portions 52. In FIG. 6, one cylindrical portion 52 is shown and the other cylindrical portions 52 are omitted. The cylindrical portion 52 includes a substantially semicircular convex portion 12C as an engaging portion protruding in the axial direction from the end surface 12B of the main body portion 12A, and an engaged portion provided on the end surface 12D of the main body portion 12A. A substantially semicircular concave portion 12E. The cylindrical portion 52 is provided with a cut portion 54 extending in the entire axial direction on the peripheral surface portion of the main body portion 12A.

  In such a protector 50, when the plurality of cylindrical portions 52 are extrapolated to the hose 14 (see FIG. 2), the notch portions are expanded by extending the space between the notch portions 54 to be equal to or larger than the diameter of the hose 14. The hose 14 can be inserted into the cylindrical portion 52 from 54. Moreover, the hose 14 can be removed from the notch part 54 by expanding between the notch parts 54 of the cylindrical part 52 more than the diameter of the hose 14 in the circumferential direction. For this reason, attachment of the cylindrical part 52 to the hose 14 and removal of the cylindrical part 52 from the hose 14 are further facilitated.

  The shapes of the engaging portion and the engaged portion engaged with the engaging portion are not limited to the first to fifth embodiments, and can be changed as appropriate.

DESCRIPTION OF SYMBOLS 10 Protective tool 12 Cylindrical part 12B End surface 12C Convex part (engagement part)
12D End surface 12E Concave part (engaged part)
14 hose 20 protective equipment 22 cylindrical part 22A convex part (engagement part)
22B Concave part (engaged part)
30 protective device 32 cylindrical part 32A convex part (engagement part)
32B concave part (engaged part)
40 Protective Equipment 42 Cylindrical Part 50 Protective Equipment 52 Cylindrical Part 54 Cut-in S S Clearance

Claims (5)

A plurality of tubular portions that are extrapolated to the tubular member and protect the tubular member;
An engagement portion provided on one end side in the axial direction of the tubular portion, and provided in an axial direction from an end surface of the tubular portion;
It is provided on the end surface on the other axial end side of the cylindrical portion, and the engagement portion provided on the other cylindrical portion is engaged with the other cylindrical portion along the axial direction. Engaged parts to be coupled;
Having protective equipment.   In a state where the engaging portion is engaged with the engaged portion of the cylindrical portion disposed at a position adjacent to the axial direction, the cylindrical portion disposed adjacent to the end surface of the cylindrical portion. The protective device according to claim 1, wherein a gap is provided between the end surface of the protective device.   The protector of Claim 1 or Claim 2 in which the notch part extended in the whole axial direction is provided in the surrounding surface part of the said cylindrical part.   The protector according to any one of claims 1 to 3, wherein the plurality of cylindrical portions are colored, or the axial lengths of the plurality of cylindrical portions are different from each other. The engaging portion is a convex portion protruding from an end surface of the cylindrical portion,
The protector according to any one of claims 1 to 4, wherein the engaged portion is a concave portion formed on an end surface of the cylindrical portion.

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