JPH094218A - Clamp cover - Google Patents

Abstract

PURPOSE: To improve workability, by opening/closing a pair of cover bodies opening/closing through a hinge from the direction longitudinally crossing in a pipe and providing a notch to insert the pipe into the cover bodies and also providing a fixing means between the hinge and the notch. CONSTITUTION: When a cover 10 is fitted to a clamp 2, the cover bodies 11a, 11b are put on the clamp 2 in the opened state the cover bodies are opened and then they are closed. In this time, since a fixing means 13 constituted of a pin, a pin receiver, etc., is positioned in the front side of the pipe 11 which is visible for an operator taking a natural posture, he can confirm the fitted condition. The fixing means 13 is less affected by the warp in comparison with the front end of notch of the cover bodies 11a, 11b and an axis is formed in the pin and hence the fixing means can be easily manipulated. In this way, the cover can be easily and securely fitted by a simple action.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a clamp cover,
More specifically, the present invention relates to a clamp cover for covering a clamp used for connection between pipes and between pipes and support members such as H steel when mainly constructing a temporary scaffold, a temporary handrail or the like.

[0002]

2. Description of the Related Art In recent years, by covering a clamp used for constructing a temporary scaffold using a pipe, a temporary handrail, etc., a passerby can be provided by a protruding portion such as a rotating screw shaft (see reference numeral 4 in FIG. 4) in the clamp. Clamp covers that can prevent accidents such as injury to workers and workers are beginning to be used. Such a cover not only contributes to improving the environment at the work site from a safety point of view, but it is also possible to improve the appearance of a relatively complicated site and to improve the appearance of the clamp by making the colors of each cover colorful or uniform. It brings advantages such as prevention of corrosion.

As the clamp cover, at present, a flexible plastic mold integrally molded with a mold is adopted. As its mode, as shown in FIG.
While opening and closing the pair of front and rear cover bodies 51a and 51b in the longitudinal direction (axial direction) of the pipe 1 via the hinge portion 52,
One that is attached to and detached from a clamp (not shown) that holds the pipe 1, or, as shown in FIG. 9, a pair of left and right cover bodies 61.
There is one in which a and 61b are attached and detached while opening and closing in the direction intersecting the longitudinal direction of the pipe 1 via the hinge portion 62, both of which are installed between the cover main bodies at the time of attachment so as not to separate from the clamp due to strong wind. Locking portion 53 for locking the
63 are provided.

However, in the case of the former cover 50,
When attaching / detaching to / from the clamp, each cover body 51a, 5
In order to put the pipe 1 in and out of the circular opening 54 provided in 1b, it is necessary to bend the piece portion 56 below the opening 54 each time, which is not only troublesome to attach and detach, but also deformation and cracks from the piece portion 56. There was a problem in durability such as occurrence of.

On the other hand, in the case of the latter cover 60, since the substantially semicircular cutouts 64 provided in the respective cover bodies 61a and 61b are fitted to the pipe 1 from the side thereof, they are likely to be bent at the time of attachment / detachment. There are no parts.

[0006]

However, in the clamp cover 60, the respective cover bodies 61a, 61b are provided.
A locking portion 63 for locking the space is provided at the tip of the edge portion 66 below the cutout portion 64, and such a position comes to the back side of the pipe 1 which is a blind spot from the worker who wears it. ,
It was not possible at all to visually confirm at the time of mounting whether or not the locking portion 63 securely locked between the cover main bodies 61a and 61b. Particularly, since the vicinity of the tip of the edge portion 66 is farthest from the hinge portion 62 and is relatively thin, it is the portion that is most affected by the bending due to the adjustment of the force, and each edge of each cover body 61a, 61b. It was not easy to bring the parts 66 into contact with each other accurately without looking at the time of mounting.

Referring again to FIG. 8, the clamp cover 50
The locking portion 53 of the rear cover body 51 is provided on the front cover body 51a with a piece 53a having a hole 53a '.
It is a button type in which the protrusion 53b is formed on the hole 53a 'while the piece 53a is tilted down.

However, in the case of such a button type,
In addition to the operation of closing each cover body 51a, 51b, a fitting operation for locking is required. Furthermore, although it is the current situation that workers generally wear leather gloves, the button type It cannot be locked with the leather gloves on, and the leather gloves must be removed. Therefore, the mounting of the cover becomes a complicated work, and the complexity increases according to the number of clamps.

On the other hand, in the case of the clamp cover 60 (FIG. 9), not only the locked state of the locking portion 63 can be visually observed, but also the locking portion 63 at the time of mounting cannot be reached. Therefore, the cover 5
The button type such as 0 cannot be adopted, and further, as described above, there is the influence of bending, so that the mode of the locking portion is naturally significantly limited.

Therefore, the locking portion 63 of the cover 60 is shown in FIG.
As shown in FIGS. 0 (a) and (b) in an enlarged manner, the key 63 having the saw teeth 63a 'facing upward on the cover body 61a on the right side.
a is provided, and a stopper 63 is provided on the cover body 61b on the left side.
A receiving portion 63b having a U-shaped cross-section and having a downward opening is provided, the key 63a is inserted into the receiving portion 63b, and the sawtooth 63a 'is hooked and locked by the stopper 63b'. ing.

In the case of this type, the locking is simply sawtooth 63
Since there is no part for restraining a'and the stopper 63b 'from being caught by each other, the locking is not reliable. In addition, the key 6 can
3a cannot be smoothly inserted into the receiving portion 63b, and the orientation of the tip end portion of the key 63a is adjusted from the vicinity of the base end portion of the key 63a while roughly estimating the orientation.
Therefore, the key 63a has a defect that it is easily broken from the base end, and this defect becomes more remarkable when the flexibility of the cover 60 is reduced by cooling during use in a cold region.

The present invention has been made in view of the above problems, and a first object thereof is to be able to mount the device while checking the locked state, and to limit the mode of the locking means. It is to provide a clamp cover that does not exist.

A second object of the present invention is to provide a clamp cover that can be attached and locked with one touch while wearing leather gloves, and the locking means has good durability.

[0014]

In the clamp cover according to the present invention, a pair of left and right cover bodies which are opened and closed via hinges are provided in the longitudinal direction (axial direction) of the pipe with respect to a single clamp holding the pipe. It is a mode in which the clamp is covered by opening and closing from the direction intersecting with.

The term “single clamp unit” means that each clamp unit to which a plurality of clamps are coupled is to be covered separately. Therefore, the clamp unit (see reference numeral 3 in FIG. 4) between the unit units is to be covered. Is the opening (bottom) of this cover
Corresponds.

Further, according to the present invention, each of the cover bodies is provided with a notch defining an opening through which the pipe is inserted, and as a means for achieving the first object, a state in which the cover bodies are closed is provided. The locking means for locking at is provided between the hinge portion and the cutout portion.

Here, the cutout portion that defines the opening through which the pipe is inserted is a portion that substantially matches the outer diameter of the pipe at the time of mounting, so that it has a substantially semicircular shape in the case of a general cylindrical pipe, When it is used for a prismatic pipe, it has a rectangular shape.

Further, the hinge portion is the center of the opening / closing rotation of each cover body, and is provided at a position which comes to the front side of the pipe when mounted, by design. Although it is preferable that the hinge portion is provided so as to accurately divide the cover into two, it may be displaced from the position where the cover 60 is divided into two as in the hinge portion 62 in FIG. 9.

Further, between the hinge portion and the notch portion is a portion which extends between the hinge portion and the upper end of the notch portion and has a function as a stopper which abuts each other in the closed state, The locking means may bear the stopper-like function of defining the closed state by overlapping the parts without contacting each other.

Further, the portion between the hinge portion and the notch portion comes to the front side of the pipe at the time of mounting, like the hinge portion. Therefore, by providing the locking means at this portion, the locked state becomes visible.

Since the locking means does not function if it is too close to the hinge portion, it is desirable to provide the locking means near the lower end between the hinge portion and the notch, that is, near the notch, but the hinge and the notch. It is also possible to provide it over the entire area between and.

Further, as the locking means, any means can be used as long as it can lock the respective cover bodies to the extent that the main cover does not come off from the clamp due to strong wind, and the button shown in FIGS. In addition to a type and a type in which a saw tooth is scratched on a stopper, a known type such as a hook type, a zipper type, a pin fitting type, a cylinder fitting type, a one-side fitting type, and a botch holding type is included. Although a separate member, such as a fastener or a velcro tape, may be provided, it is technically difficult to integrally mold the mold, which is disadvantageous in terms of cost.

In the present invention, the locking means comprises an insertion portion provided on one of the cover main bodies and a receiving portion provided on the other cover main body for receiving the insertion portion.
The insertion part and the receiving part may be fitted by the operation of closing the respective cover bodies, and specific examples of such locking means will be described in detail in Examples.

[0024]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 and 2 are perspective views showing an open state and a closed state of the clamp cover 10 according to the present invention, respectively. The clamp cover 10 is substantially composed of a pair of left and right cover bodies 11a and 11b, and a state in which a hinge portion 12 that connects the cover bodies 11a and 11b to each other in an openable and closable manner is closed between the cover bodies 11a and 11b. It is a plastic product that is integrally molded with a mold, including a locking means 13 that locks with.

The hinge portion 12 is a general C-shaped section (along the direction crossing the longitudinal direction), and the locking means 13 is a cover on the right side as shown in an enlarged view in FIG. A pin portion 13a as an insertion portion provided on the main body 11a so as to protrude toward the left cover main body 11b in a tangential direction around the hinge portion 12, and the left cover main body 11
and a pin receiving portion 13b provided as a receiving portion having a pin receiving hole 13b ′ along the tangential direction,
These are also provided on the back side (rear part) of the cover 10 not shown.

Each of the cover bodies 11a and 11b has a semi-cup shape similar to the case where the opposite side portions and bottom portions are opened (excluding the locking means 13), and semi-circular cutout portions 14 at the front and rear portions. Each is equipped with. Each notch 14 defines a circular opening 24 (see FIG. 2) that substantially matches the outer diameter of the pipe 1 (see FIG. 4) when closed.

The upper end 1 of the hinge 12 and the notch 14
An abutting portion 15 that abuts each other in the closed state extends between the abutting portion 4'and 4 ', and the locking means 13 is provided near the lower end of the abutting portion 15. It is desirable that the edge portions 16 below the lower end 14 ″ of the cutout portion 14 also abut on each other in the closed state, but they may not abut.

Pin receiving portion 13b of the locking means 13
Has a cylindrical shape that defines the pin receiving hole 13b 'inside, and the peripheral wall of the pin receiving portion 13b is divided by slits 13b "extending in the axial direction.
The diameter of 3b 'is made slightly smaller than the outer diameter of the pin portion 13a. Therefore, when the pin portion 13a and the hole 13b' are fitted, the diameter of the hole 13b 'is slightly increased and the pin portion 13a is restored due to the restoring force. Slightly press to restrain.

FIG. 4 is a perspective view showing a usage state of the clamp cover 10. The illustrated clamp 2 is a general one in which the single bodies (2) are coupled to each other from the coupling portion 3 on the proximal end side, and the cover 10 is attached to each of the single bodies (2).

The cover 10 includes a hinge portion 12 and a locking portion 1.
3 comes to the front side of the pipe 1, that is, to the side where the worker who wears it stands up and can see, while the opened bottom part of the cover 10 corresponds to the coupling part 3. In addition, the cover 10 includes the clamp 2
In the above, the rotating screw shaft 4 and the like, which protrudes and is most dangerous for passersby and workers, are covered with a relatively large margin.

To mount the cover 10 on the clamp 2, the cover 2 is put on the clamp 2 with the cover bodies 11a and 11b open, and then the cover bodies 11a and 11b are mounted.
Close. At this time, the pin portion 13a and the pin receiving portion 13b
However, as described above, since it is on the front side of the pipe 1 where the worker can visually recognize it in a natural posture, the engagement state of the pin portion 13a and the pin receiving portion 13b can be confirmed. In addition,
The positions of the pin portion 13a and the pin receiving portion 13b are less affected by bending than the edge portion 16, and the pin portion 13a has a core, so that the pin portion 13a and the pin receiving portion can be easily received without any unnecessary care. The part 13b can be engaged. Therefore, the attachment of the cover 10 to the clamp 2 is completed only by the operation of closing the cover bodies 11a and 11b, and the removal of the cover 10 is also a one-touch operation.

Next, another example of the locking means will be described.

The locking means 23, 33, shown in FIGS.
Similar to the locking means 13 described above, all 43 are provided in the vicinity of the upper end 14 'of the cutout portion 14, and the portions (23a, 33a, 43a) projecting in the tangential direction of the opening / closing rotation are right cover bodies. 11a (see FIGS. 1 and 2; the same applies hereinafter).

The locking means 23 of FIG. 5 is the pin receiving portion 13 of the locking means 13 provided on the cover body 11b on the left side.
Insert portion 23b having substantially the same shape as b and the cover body 1 on the right side
1a, a cylindrical receiving portion 23 with an open rear
The receiving part 23a surrounds and fits the insertion part 23b by the operation of closing each cover body 11a, 11b. Therefore, the roles of male and female in the fitting of the insertion portion 23b are opposite to those of the pin receiving portion 13b of the locking means 13.

The locking means 33 of FIG. 6 has a tongue-shaped insertion portion 33a provided on the right cover body 11a and a hole 33b 'provided on the left cover body 11b for receiving the insertion portion 33a. The receiving portion 33b has the insertion portion 33b by the operation of closing each cover body 11a, 11b.
a fits into the hole 33b ', and at this time, a locking force is obtained by friction of the insertion portion 33a in the hole 33b'.

The locking means 43 shown in FIG. 7 includes a botch 43b (only this portion is shown in a side view) as an insertion portion provided on the left cover body 11b, and the right cover body 11a.
The botch receiving portion 43a is provided at the base of the slit 43a ″ that opens to the left, and the diametrically expanded portion 43a ′ that holds the botches 43b by closing the cover bodies 11a and 11b. Equipped with.

Although not shown, a plurality of locking means can be provided between the hinge portion 12 and the upper end 14 'of the cutout portion 14.

[0039]

As described above, in the clamp cover according to the present invention, the locking means for locking the cover bodies in the closed state has the hinge portion and the notch portion which come to the front side of the pipe at the time of mounting. Since it is provided between and, it can be attached to the clamp while visually confirming the locked state. Therefore, the mounting work can be performed easily and surely, and further, the locking means can be provided in an appropriate mode without being particularly limited.

Further, in the present invention, if the locking means is composed of the inserting portion and the receiving portion which are fitted by the operation of closing each cover body, no special operation is required in addition to the operation of closing each cover body at the time of mounting. It is possible to engage between the respective cover bodies without doing so. Therefore, the worker can wear the gloves with one touch without removing the leather gloves, and the wearing work can be further facilitated. Further, since the insertion portion and the receiving portion are located at positions relatively close to the hinge portion that is visible and less affected by bending, they fit without any special orientation. Therefore, even if it is used in a cold region, there is no concern that one side will break, and the durability of the locking means can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an opened state of a clamp cover according to the present invention.

FIG. 2 is a perspective view showing a closed state of a clamp cover.

FIG. 3 is an enlarged perspective view showing a locking unit.

FIG. 4 is a perspective view showing a usage state of the clamp cover.

FIG. 5 is an enlarged perspective view showing another example of locking means.

FIG. 6 is an enlarged perspective view showing another example of locking means.

FIG. 7 is an enlarged explanatory view showing another example of locking means.

FIG. 8 is a perspective view schematically showing a conventional clamp cover.

FIG. 9 is a perspective view schematically showing a conventional clamp cover.

FIG. 10 is an enlarged front view (a) and side view (b) of a locking portion of a conventional clamp cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 pipe 2 clamp 3 coupling part 4 turning screw shaft 10 clamp cover 11a, 11b cover body 12 hinge part 13, 23, 33, 43 locking means 13a pin part 13b pin receiving part 13b 'pin receiving hole 13b "slit 14 notch Part 15 Contact part

Claims (2)

[Claims] 1. A clamp cover for covering a clamp by opening and closing a pair of left and right cover bodies, which are opened and closed via hinges, in a direction intersecting the longitudinal direction of the pipe with respect to a single clamp for holding the pipe. Then, each cover main body is provided with a cutout portion that defines an opening through which the pipe is inserted, and locking means for locking the cover main body in a closed state is provided with the hinge portion and the cutout portion. A clamp cover characterized by being provided between the clamp covers. 2. The locking means is provided on one of the cover main body and the other of the cover main body,
The clamp cover according to claim 1, comprising a receiving portion that receives the insertion portion, and the insertion portion and the receiving portion are fitted by an operation of closing each cover main body.