JP2000184552A - Protective cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a useful protective cover wherein branching or taking out of a covered wire is done easily even at arbitrary point, a fastener part is not damaged even when a cover body is arbitrarily cut to short according to the length of an electric wire to be covered, and a protective article of covered wire, etc., is held wrapped with ease for rigidity. SOLUTION: A fastener end 4 is fitted to the end of a fastener element. The fastener element is injection-molded with a thermo-plastic elastomer blended with the molding material of the element, and directly fitted to a cover body by just heating to a given temperature. A slope is so provided as to come down between pitches of the element on the surface of each element, guiding lock members 4a and 4a of the fastener end 4 in that direction. The fastener end 4, formed into U-shape at cross-section, comprises a lock member 4a engaged between pitches of the fastener element for free attaching/detaching, and a side lock 4b engaged to the side end of the fastener element.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a protective cover mainly used for protecting a covered electric wire, and more particularly, to a method of forming a zipper portion even if it is cut freely according to the length of the electric wire to be covered. The present invention relates to an endless type useful protective cover that can easily and firmly hold a protective product such as a covered electric wire without being unraveled.

[0002]

2. Description of the Related Art Conventionally, as such a protective cover, for example, a protective cover disclosed in Japanese Utility Model Laid-Open No. 63-113417 is already well known as a conventional example. As shown in FIG. 18, this conventional protective cover has a projecting portion 12 extending in the longitudinal direction formed on the outer surface of a cover main body 11, and the projecting portion 12 is provided with pin holes 13, 13,. It becomes.

As a protective cover using a fastener, as shown in FIG. 19, a pair of fastener tapes 14 having fastener elements 2, 2... , 14 are sewn together, and the two elements 2, 2,... Are engaged with each other via a slider 15 to converge and hold a plurality of covered electric wires (not shown) in an annular shape.

[0004]

However, in the above-mentioned protective cover disclosed in Japanese Utility Model Laid-Open Publication No. 63-113417, it is only necessary to insert the pin hole into a mounting pin previously planted at a mounting location. Since the bundled electric wire 10 can be fixed, there is an advantage that workability is improved,
There is a problem in that it is not possible to selectively take out only a certain fixed electric wire from the middle part of the cover main body 11 or to branch in a different direction.

In a protective cover described later, end fasteners (not shown) such as upper metal fasteners and lower metal fasteners are fixed to the free ends of the fastener tapes 14, 14. In addition, there is a problem that the slider 15 cannot be slid.

In addition, when the protective cover is cut at an intermediate length, there is a disadvantage that the sewn portion with the fastener tapes 14, 14 is loosened. In addition, if only the fastener elements 2, 2,. On the contrary, there is a problem in strength such as the fastener coming off.

[0007] The present invention has been made in view of such conventional problems, and allows the insulated wire to be easily branched and taken out at any position, and the cover body can be formed in accordance with the length of the wire to be covered. It is an object of the present invention to provide a useful protective cover that can easily and firmly hold a protective product such as a covered electric wire without loosening a fastener portion even if it is cut freely.

[0008]

SUMMARY OF THE INVENTION In order to solve the conventional problems as described above and to achieve the desired object, a gist of the present invention is to provide a slide fastener for connecting a cover body of a desired size in a ring shape. In a protective cover for detachably enclosing a protective object such as a covered electric wire through the cover body,
The present invention resides in a protective cover provided with a detachable fastener end for stopping a terminal end of a fastener element.

Preferably, the fastener end is provided with a lock member which is detachably locked between the pitches of the fastener elements, and is straddled over the edge of the cover body.

Further, the fastener element is preferably formed by blending at least a thermoplastic elastomer with a synthetic resin material such as a polyacetal resin or a nylon resin, and is directly fused to an edge of the cover body.

Further, the cover body may be provided with a heat insulating material and / or a protective material such as urethane foam material if necessary.

In the protective cover of the present invention thus configured, the slide fastener is provided with a detachable fastener end for stopping the end of the fastener element. Accordingly, the end (limit) of the cover body can be set freely.

[0013] Further, the fastener end is provided with a lock member which is detachably engaged between the pitches of the fastener elements and is straddled over the edge of the cover body, so that the fastener is prevented from coming off accidentally. It can be locked easily and firmly.

Further, the fastener element is formed by blending at least a thermoplastic elastomer with a synthetic resin material such as a polyacetal resin or a nylon resin, and is directly fused to the edge of the cover main body. This is unnecessary, and the cost can be further reduced.

Further, if the cover body is formed to be extendable and contractable, it is deformed to correspond to the shape and size of a protected product such as a covered electric wire (hereinafter simply referred to as a protected product), and is protected in a tight and fitted state. The product can be held.

Further, if the cover body is provided with a heat insulating material and / or a protective material such as a urethane foam material, it can be optimally used as a protective cover for a water pipe or the like.

[0017]

Next, a first embodiment of a protective cover according to the present invention will be described with reference to FIGS. In the drawings, P is a protective cover according to the present invention. As shown in FIGS. 1 to 3, the protective cover P is arranged on a cover body 1 of a predetermined size and on a side edge of the cover body 1. The fastener elements 2, 2...
2 and a zipper end 3 attached to the terminal end.

The cover body 1 is made of, for example, a stretchable or deformable material, for example, a sheet of cloth, nonwoven fabric, woven fabric, synthetic resin, or the like, or a tarpaulin (trade name), and a fastener element attached to the open end. Are connected to each other via a slider 4, which will be described later, so as to be annularly fixed (see FIG. 1).

The above-mentioned tarpaulin is obtained by laminating a film of soft vinyl chloride, thermoplastic resin or the like on the front and back of a base cloth made of polyester, nylon or the like by heat or the like. Has a three-layer structure (integral structure) that is in close contact with the base material through a gap (porous).

The fastener elements 2, 2,...
It is made of a synthetic resin material such as polyacetal resin or nylon resin having material properties such as lubricity, strength, and deformation resistance (toughness resistance), and is directly protruded from the cover body 1 to eliminate the need for a conventional fastener tape. (See FIG. 3B).

The means for directly attaching the fastener elements 2, 2,... To the cover body 1 is, for example, only by mixing a molding material of the elements 2, 2,. There are merits such as being easily and firmly prevented (fused) from being attached to the cover main body 1 and being able to be smartly finished without any step in the mounting portion, since the fastener tape is not required.

The thermoplastic elastomer is preferably, for example, a polyester-based thermoplastic elastomer. Cover, ABS resin, PC (polycarbonate), P
This is because thermal fusion with a hard resin such as MMA can be performed.

As shown in FIG. 4, the fastener element 2 has a meshing portion 2a having a predetermined shape and a meshing portion 2a.
a, and a mounting slit 2c formed on a side surface of the base 2b, and is laid over the edge of the cover body 1 by injection molding. .

Further, the fastener elements 2, 2,...
Are formed with slope surfaces 2d. The slope surfaces 2d, 2d...
The guide member 2 is inclined so as to descend toward the pitch of 2, and guides the lock members 3a, 4c of the fastener end 3 and the slider 4, which will be described later, in the same direction.

On the other hand, as shown in FIGS. 5 and 6, the fastener end 3 is provided with an end body 3a having a U-shaped cross section and the fastener element 2 protruding from the inner wall surface of the end body 3a. Locking members 3b, 3b detachably locked between the pitches of the elements 2, 2,.
And side locks 3c, 3c that are locked to the side ends.

The fastener end 3 is integrally formed in a U-shape with a suitable synthetic resin material such as polyacetal resin or nylon resin having flexibility, strength, and deformation resistance (toughness resistance). By doing so, the open end side is formed so as to elastically hold the elements 2, 2... Of the cover body 1 (in the form of a so-called clip).

On the other hand, as shown in FIG. 7, the slider 4 is provided with a tab 4b projecting from the upper surface of the slider body 4a so as to be foldable, and a pitch of the fastener elements 2, 2. And a lock member 4c which is detachably locked between the lock members.

The slider main body 4a has a lubricity, strength,
Deformation resistance are integrally molded by an appropriate synthetic resin material such as polyacetal resin or a nylon resin having the material properties of (耐靱property), and a top plate 4a ₁ and the lower plate 4a ₂ (FIG. 7 (a )reference).

Further, the upper and lower plates 4a₁ , 4a_Two On both sides of
Is the flange 4a_Three , 4a _Four Is formed
You. This flange 4a_Three , 4a_Four Between the cover body 1
And the upper and lower plates 4a₁ ,
4a_Two In cooperation with the connecting pillar (not shown)
Y-shaped passage for guiding the row of fastener elements 2, 2, ...
It forms a road.

The upper plate 4a of the slider body 4a
The _1, as shown in FIG. 7 (b), the groove 4a ₅ is formed. The groove 4a ₅ is formed in a size to allow the pull tab 4b to be Oriawa, notch 4a ₆ communicating with the Y-shaped passage on the other side is continuously provided.

When the fastener is closed, the notch 4a ₆ is opened so that accurate abutment and positioning of the elements 2, 2,... Can be performed (at a glance), and the tab 4b is folded. At this time, the lock member 4c (within the slider body 4a) has the fastener elements 2, 2,.
The lack off bottom of the groove 4a ₅ as can be fitted in.

Further, the handle 4b is connected to the slider body 4
a, and is aligned with the upper surface of the slider body 4a so as to be freely foldable. In other words,
The pull tab 4b is one longitudinal end are Oreai freely protrude through the hinge portion 4b ₁ consisting of thin-walled, the locking member on the side facing the slider body 4a (the plane of the inside) of the slider body 4a 4c.

The lock member 4c is composed of a pair of engaging projections locked between the fastener elements 2, 2,..., And when the tab 4b is folded (see FIG. 9), the slider body 4a moves freely. Are detachably locked between the pitches of the elements 2, 2,....

Further, when the length of the pull tab 4b is that (see FIG. 7) are aligned such that the longitudinal direction approximately same in size of the slider body 4a, fitted in the groove 4a _5, the pull tab Locking pawls 4b _{2 on} both edges in the width direction so that 4b does not come off easily.
(See FIG. 7).

The locking claw 4b ₂ is removably locked in opposed locking holes 4a ₇ and 4a ₇ (see FIG. 7 (b)) recessed near the cutout 4a ₆ . And holds the puller 4b so as to be flush with the slider body 4a.

In the protective cover P according to the present invention thus configured, after the slider 4 is slid and the cover main body 1 is connected in an annular shape (see FIG. 1), as shown in FIG. Is simply snapped into the upper and lower ends of the zipper element 2.
Are locked between the pitches of the elements 2 (guided by the slope surface 2a of the fastener element 2), so that the fastener can be securely locked so as not to open easily. .

At this time, the side locks 3b, 3b
Are locked to the side ends of the fastener elements 2, 2,..., So that the fastener end 3 does not shift in the left-right direction and can be attached more securely.

Therefore, in such a locked state, since the fastener elements 2, 2 are easily and smoothly engaged (locked) between the fastener elements 2, 2,... In other words, once
When the fastener end 3 is attached, it is securely locked and does not open easily.

Therefore, as shown in FIG. 9, if the sliders 4 and 4 are attached between the fastener ends 3 and 3,
Even if a plurality of insulated wires 10, 10,.
Only 0 and 10 can be pulled out in different directions.

Further, at this time, the sliders 4, 4 simply press the tabs 4b against the slider main body 4a, and the locking members 4c, 4c can easily be connected to the fastener elements 2, 2,.
The engagement between them prevents the open portions from easily expanding in diameter as the drawn insulated wires 10 and 10 move, and the sliders 4 and 4 can be locked in place.

Next, a second embodiment of the fastener end according to the present invention will be described with reference to FIGS.
To facilitate understanding, the same parts as those in the first embodiment are denoted by the same reference numerals, and only the parts having different configurations will be described with new numbers.

FIG. 10 is a perspective view of the fastener end 5 used in the present embodiment. As in the first embodiment, the end body 5a formed in a U-shaped cross section and the pitch of the fastener elements 2, 2,. A lock member 5b is detachably interposed between the lock members 5b, and side locks 5c are locked to side ends of the elements 2 and 2.

In order to make attachment to the fastener easier, the fastener end 5 has inclined surfaces 5d, 5d that gradually become thinner toward the distal end, and the distal end only by pressing the proximal end with a finger. And a fulcrum spring 5e for enlarging the diameter.

As shown in FIG. 11 (b), the fulcrum spring 5e is formed in an arch shape. By pressing the free ends 5f, 5f inward against the material flexibility, the fulcrum spring 5e has a distal end. The inclined surfaces 5d, 5d side are opened outward to simplify the pressing and holding of the fastener.

Next, a third embodiment of the fastener end according to the present invention will be described with reference to FIGS.
To facilitate understanding, the same parts as those in the above-described first and second embodiments are denoted by the same reference numerals, and only the parts having different configurations will be described with new numbers attached.

FIG. 13 is a perspective view of the fastener end 6 used in the present embodiment. As in the previous embodiment, an end main body 6a having a U-shaped cross section is folded over the upper surface of the end main body. And a freely protruding engagement piece 6b.

The end body 6a is integrally formed of a suitable synthetic resin material such as a polyacetal resin or a nylon resin having material properties such as lubricity, strength, and deformation resistance (toughness resistance) similarly to the slider body 4a described above. And the upper plate 6a
And a ₁ and the lower plate 6a ₂ (see FIG. 13 (b)).

On both side edges of the upper and lower plates 6a ₁ , 6a ₂ are formed flange-like side locks 6a ₃ , 6a _{4 which} are engaged with the sides of the fastener elements 2, 2,.

[0049] Further, the upper plate 6a _1, as shown in FIG. 13 (b), concave grooves 6a ₅ is formed. This groove 6
a ₅ is formed to a size that allows the engaging piece 6b that is Oriawa cutouts 6a ₆ which communicates with the other edge is continuously provided.

[0050] The notch 6a ₆ is time of Oriawa the engaging pieces 6b, notching free end of the upper plate 6a ₁ as locking member 6c to be described later can be fitted between fastener elements 2, 2 ... ing.

On the other hand, the engagement piece 6b is connected to the end body 6a.
And the concave groove 6a of the end body._Five Folded
Aligned to fit freely. In other words, this
The engagement piece 6b is attached to the end body 6a._Five At one end in the longitudinal direction of
Hinge part 6b made of thin wall ₁ Projecting freely through the
On the side (the inner surface) facing the end body 6a.
A lock member 6c is provided.

The lock member 6c is composed of a pair of engagement projections locked between the fastener elements 2, 2,..., And when the engagement pieces 6b are folded (see FIG. 13).
The end body 6a is detachably locked between the pitches of the elements 2, 2,... So as not to move freely.

The length of the engagement piece 6b is
are aligned such that the longitudinal direction approximately same in size in a (FIG. 14 (b) refer), when fitted to the groove 6a _5, the width as Dokakarigohen 6b does not come off so easy Locking pawls 6 on both sides in the direction
d is protruded (see FIG. 13B).

[0054] The locking claw 6d, the cutouts 6a of the opposite arrangement is recessed in the vicinity of ₆ engaging hole 6a _7, 6a ₇ (FIG. 1
3 (b)) so as to be detachably engaged with the end body 6a so as to hold the same engagement piece 6b.

The thus constructed fastener end 6 according to the present invention, after the slider 4 is slid and the cover main body 1 is connected in an annular shape, is connected to both upper and lower ends of the fastener element 2 as shown in FIG. Fitting engagement piece 6b
, The locking members 6c, 6c of the fastener end 6 are locked (guided by the slope surface 2a of the fastener element 2) between the pitches of the elements 2, 2,. It can be securely locked so that it does not open.

At this time, the side lock 6a on the side edge is used.
_{Since 3} and 6a ₄ are locked to the side ends of the fastener elements 2, 2,..., The fastener end 3 does not shift in the left-right direction and can be more securely locked.

As shown in FIG. 16, if sliders 4 and 4 are attached between fastener ends 6 and 6,
Even if a plurality of insulated wires 10, 10,.
As in the previous embodiment, only 0 and 10 can be pulled out in different directions.

The protective cover according to the present invention is not limited to the present embodiment, but can be freely designed and changed within the scope of the present invention, and the present invention covers all of them. Things.

For example, in this embodiment, the lock members 3b, 4b of the fastener ends 3, 5 are configured to be locked between the pitches of the fastener elements 2, 2,. Without limitation, the fastener elements 2, 2... May be configured to be locked, fitted, or held by themselves.

The protective cover according to the present invention is mainly used as a protective cover for the insulated wire 10, but is not limited thereto, and may be applied to clothing, bags, pipes, conduits and other products. It can be applied.

For example, when the present invention is used as a protective cover for a water pipe or the like, as shown in FIG. 17, a cover body 1 provided with a heat insulating material such as a urethane foam material 1a or a cushion material on the inner surface thereof. Needless to say, it is used in combination with a protective material such as a cushioning material or an electromagnetic wave shielding material depending on the application.

When the present invention is used as an electromagnetic wave shielding material, copper, iron, aluminum, aluminum,
By using a material (not shown) such as tin or attaching (laminating) the material to the surface, it can be easily applied as an electromagnetic wave shielding material, and the present invention encompasses all of them. is there.

[0063]

The present invention is constructed as described above, and the cover main body is provided with a detachable fastener end for stopping the end of the fastener element. An excellent effect is obtained in that the end can be freely set and the opening of the fastener contrary to the conventional one can be reliably prevented.

Further, since the fastener end is provided with a locking member which is detachably locked between the pitches of the fastener elements and is straddled on the edge of the cover body, the fastener can be locked easily and securely. This has the effect of being able to engage more firmly than a conventional protective cover.

Further, the fastener element is formed by blending at least a thermoplastic elastomer with a synthetic resin material such as polyacetal resin or nylon resin, and is directly fused to the edge of the cover body, so that the conventional fastener tape can be used. This eliminates the necessity and achieves an excellent effect that the cost can be further reduced.

Further, if the cover main body is formed to be extendable and contractable, it is deformed in accordance with the shape and size of the article to be protected, so that it is possible to always hold the article in a tight and fitted state.

Further, if a heat insulating material and / or a protective material such as urethane foam material is attached to the cover body, the cover can be optimally used as a protective cover for a water pipe or the like in a cold region. On the contrary, there is an effect that the attaching / detaching operation and the fastening according to the pipe diameter can be extremely easily and firmly performed.

As described above, according to the present invention, since the terminal can be set according to the length of the protective article (product) to be covered, it can be used endlessly and easily and firmly prevents unintended opening of the fastener. In addition to the simple configuration, the present invention has a tremendous practical value in that it is suitable for mass production and can be supplied to consumers at a low price.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an example of an embodiment of a protective cover according to the present invention.

FIG. 2 is an enlarged front view of a main part of the protective cover.

FIG. 3 (a) is a development view of the protective cover, and FIG. 2 (b)
FIG.

FIG. 4 is an enlarged perspective view showing a main part of the fastener element used in the embodiment.

5 (a) is a plan view showing a first embodiment of the fastener end used in the present invention, FIG. 5 (b) is a left side view of the fastener end, and FIG. 5 (c) is a front view thereof 5D is a right side view of the same, and FIG. 5E is a bottom view of the same.

6A is a sectional view of the fastener end taken along line BB, FIG. 6B is a sectional view taken along line AA of FIG. 6, and FIG.
FIG. 6D is a sectional view taken along line CC of FIG.

FIG. 7A is a perspective view of a slider used in the present embodiment, and FIG. 7B is a perspective view of the slider in a state where a handle is raised.

FIG. 8 is a partially cutaway explanatory view showing a state in which fastener ends are fixed to both upper and lower free ends of the fastener.

FIG. 9 is an explanatory view showing a state in which the fastener end and the slider according to the present invention are combined, and the covered electric wire is drawn out from a predetermined open portion in an arbitrary direction.

FIG. 10A is a perspective view showing a second embodiment of the fastener end used in the present invention, and FIG. 10B is a perspective view of the same.

FIG. 11 (a) is a plan view of the fastener end,
11 (b) is a left side view, FIG. 11 (c) is a front view, FIG. 11 (d) is a right side view, and FIG. 11 (e) is a bottom view.

12A is a sectional view of the fastener end taken along line BB, FIG. 12B is a sectional view taken along line AA, and FIG. 12C is a sectional view taken along line DD of FIG. 12 (d) is a sectional view taken along the line CC.

FIG. 13 (a) is a perspective view (locked state) showing a third embodiment of the fastener end used in the present invention, FIG.
FIG. 3B is a perspective view of the unlocked state.

FIG. 14A is a plan view showing a locked state of the fastener end, and FIG. 14B is a front view of the same.

FIG. 15 is an explanatory diagram showing a use state of the fastener end.

FIG. 16 is an explanatory view showing a state in which the zipper end and the slider are combined and a covered electric wire is drawn out from a predetermined open portion in an arbitrary direction.

FIG. 17 (a) shows a second example of the protective cover according to the present invention.
FIG. 17B is a development view showing the embodiment, and FIG.

FIG. 18 is an explanatory view showing a conventional protective cover.

FIG. 19 is an explanatory view showing another conventional example of a protective cover.

[Explanation of symbols]

P Protective cover 1 Cover body 1a Urethane foam material 2 Fastener element 2a Mesh 2b Base end 2c Mounting slit 2d Slope surface 3 Fastener end 3a End body 3b Lock member 3c Side lock 4 Slider 4a Slider body 4a ₁ Upper plate 4a ₂ Lower Plate 4a ₃ flange 4a ₄ flange 4a ₅ concave groove 4a ₆ notch 4a ₇ locking hole 4b puller 4b ₁ hinge part 4b ₂ locking claw 4c lock member 5 fastener end 5a end body 5b lock member 5c side lock 5d inclined surface 5e Supporting point spring 5f Free end 6 Fastener end 6a End body 6a ₁ Upper plate 6a ₂ Lower plate 6a ₃ Side lock 6a ₄ Side lock 6a ₅ Concave groove 6a ₆ Notch 6a ₇ Lock hole 6b Engagement piece 6b ₁ Hinge 6c Lock Member 6d locking claw

Claims (5)

[Claims] 1. A protective cover for detachably enclosing a protection product such as a covered electric wire via a slide fastener for connecting a cover body of a desired size in a ring shape, wherein the cover body is for stopping the end of the fastener element. A protective cover characterized by being provided with a zipper end that is detachable. 2. The protection according to claim 1, wherein the fastener end is provided with a locking member detachably locked between the pitches of the fastener elements, and is straddled over the edge of the cover main body. cover. 3. The fastener element according to claim 1, wherein at least a thermoplastic elastomer is blended with a synthetic resin material such as polyacetal resin or nylon resin, and is directly fused to an edge of the cover body. The protective cover according to claim 1. 4. The protective cover according to claim 1, wherein the cover body is formed to be extendable and contractible. 5. The protective cover according to claim 1, wherein the cover body is provided with a heat insulating material and / or a protective material such as a urethane foam material.