JP4657693B2 - Mounting device - Google Patents

Description

The present invention relates to a mounting device comprising a nut body that is plastically deformed from a direction perpendicular to the axial direction of the bolt body and attached to the bolt body, and a mounting tool for plastically deforming the nut body .

It can be attached to the bolt body hanging from the ceiling of the building from the end of the external screw, not from the end of the external screw, but can be attached from the direction perpendicular to the axial direction, similar to the conventional nut Patent Document 1 discloses a nut body that exhibits the above function and an attachment tool for attaching the nut body to the bolt body.

Such a nut body can be easily attached to a desired position of the bolt body, and is constructed at a low cost, and when another object is already attached to the bolt body, it can be removed without removing it. Although it can be attached, it is of great industrial significance. However, there has been a demand for improvement in the attachment tool for attaching the nut body to the bolt body by plastic deformation. The situation will be explained.

FIGS. 13A and 13B are conceptual diagrams showing a procedure for attaching the nut body with the conventional attaching tool.

The nut body 16 shown in FIG. 13 has the same configuration as that which will be described in detail later as the nut body of the present invention, but in short, it has a U-shaped saddle shape that is used when a pipe or the like is attached to a plane as a whole. In addition, an engagement protrusion (not shown) corresponding to the outer surface screw of the bolt body B is provided on the inner peripheral surface of the main body portion 16a which is the U-shaped portion, and a grip portion 16c corresponding to the foot portion is provided. An opening 16e through which the bolt body B can pass is formed between the inside of the pair of gripping portions 16c. The attachment tool P shown here is a commercially available prior.

The procedure for attaching the nut body 16 to the bolt body B is such that the bolt body B is accommodated inside the main body portion 16a of the nut body 16 through the opening 16e as shown in FIG. Then, both ends of the gripping portion 16c are gripped and sandwiched by the tip of the attachment tool P from the opposite side of the bolt body B, and a pressing force is applied as indicated by white arrows in the figure.

Then, the main body portion 16a is plastically deformed so that the gripping portions 16c are close to each other, and finally, as shown in FIG. 13 (b), the gripping portion 6c is close to the inner surface thereof, The engagement protrusion on the inner surface of the main body portion 16a is screw-engaged with the outer surface screw of the bolt body B, and the nut body 16 is attached to the bolt body B in a state of being screw-engaged over almost the entire circumference of the bolt body B. The

However, in the case of using this attachment tool P, it is a general-purpose tool and does not include a locking means for preventing the nut body 16 from escaping from the tool P, and smooth and suitable attachment is difficult.

In particular, when starting to attach the nut body 16 to the bolt body B, it is necessary to maintain a state in which the engagement protrusions on the inner surface of the nut body 16 are in proper thread engagement with the outer surface screws of the bolt body B. However, in the state shown in FIG. 13A, in order for the mounting tool P to cause the inner surface of the nut body 16 to follow the bolt body B, it is necessary to pull the nut body 16 downward in the drawing. In this case, the nut body 16 is easily detached in the gripping state of the nut body 16 by the mounting tool P as shown in this figure, and it is difficult to appropriately satisfy the request.

Further, as shown in FIG. 13B, after attaching the nut body 16 to the bolt body B, if the nut body 16 is rotated and tightened, it is difficult to perform a good operation with the same attachment tool P. Separately, it was necessary to switch to a rotating tool such as a wrench.
International Publication WO03 / 042556A1 (FIG. 25, FIG. 26)

The present invention has been made to solve the above-described problems, and provides a mounting device capable of surely and smoothly mounting a nut body when the nut body is mounted on a bolt body. It is an object.

The attachment device according to claim 1 is a nut body that is plastically deformable from a direction orthogonal to the axial direction of the bolt body and can be attached to the bolt body, and an attachment for attaching the nut body to the bolt body. An attachment device comprising an attachment tool ,
The nut body is formed on the inner side with an engagement protrusion that engages with an outer surface screw of the bolt body, and is formed on the outer side of the main body portion, and the main body portion is plastic along the outer surface screw of the bolt body. A pair of gripping parts gripped by the attachment tool in order to deform,
The attachment tool includes a pair of rotating bodies that are provided so as to intersect with each other, and are relatively rotatable about a shaft portion provided at the intersecting portion, and from the intersecting portion of the rotating body. With the distal end side gripping the pair of gripping portions of the nut body, the nut body is plastically deformed by sandwiching the gripping portion of the nut body by rotating around the shaft portion. Is configured as a clamping part to be attached to the bolt body,
The clamping portion covers an outer periphery of the bolt body in a state where the nut body is plastically deformed and clamped to be attached to the bolt body, and an accommodation space portion that accommodates the nut body inside the bolt body. It is characterized by having.

The attachment device according to claim 2 is dependent on claim 1, and the accommodation space portion rotates the attachment tool in a state after the nut body is attached, whereby the nut body is attached to the bolt. It is configured to be able to rotate with respect to the body.

The attachment device according to a third aspect is dependent on the first or second aspect, wherein the clamping portion includes a pair of engagement step portions for engaging the grip portion of the nut body. .

The attachment device according to a fourth aspect is dependent on the third aspect, wherein the clamping portion is formed on a side surface of the pair of gripping portions of the nut body from a step below the engagement step portion toward the intersecting portion. It has a pair of inclined pressing surfaces that press a certain proximity portion in a matched state.

The attachment device according to claim 5 is dependent on claim 4, and the pair of inclined pressing surfaces engages the grip portion of the nut body before deformation with the engagement step portion, When gripped, the pair of inclined pressing surfaces are inclined surfaces such that the distance between the portions that are equidistant from the shaft portion becomes smaller as the shaft portion approaches.

The attachment device according to claim 6 is dependent on claim 5, wherein the nut body includes a pair of gripping portions, a longer long gripping portion provided with a separation preventing portion on the inside, and the nut body plastically deformed. The shorter gripping portion configured to fit into the separation preventing portion,
The clamping portion further includes an additional engagement step portion on the intersecting portion side of the inclined pressing surface, the long grip portion of the nut body is the engagement step portion, and the short grip portion of the nut body is the Configured to receive at the additional engagement step,
When the nut body is attached to the bolt body with the attachment tool, the separation preventing portion is engaged with the short gripping portion, and the separation preventing state of the pair of gripping portions of the nut body is maintained. In this state, the nut tool can be rotated with respect to the bolt body with the attachment tool.

The attachment device according to claim 7 is dependent on any one of claims 1 to 6, and is provided with a pair of holding recesses inside the front end of the clamping portion, and the holding body holds the pair of nuts by the holding recesses. The holding portion is held and clamped from the tip end side, and the gripping portion is held so as not to come off until the nut body is plastically deformed and attached to the bolt body.

The attachment device according to claim 8 is dependent on claim 7, and includes a relief flat surface portion and a tip relief gradient portion that are away from the holding portion of the nut body from the holding recess of the clamping portion to the tip side. Is provided.

The nut body of the reference example of the present invention is a nut body that is plastically deformed by a mounting tool and can be mounted from a direction perpendicular to the axial direction of the bolt body,
The nut body is formed on the inner side with an engagement protrusion that engages with an outer surface screw of the bolt body, and is formed on the outer side of the main body portion, and the main body portion is plastic along the outer surface screw of the bolt body. In order to be deformed, a pair of gripping portions gripped by the attachment tool, and a locking recess on the side of the gripping portion that contacts the attachment tool are provided.

The attachment holding metal fitting of the reference example of the present invention is an outer side of the bolt body in the axial direction of the bolt body in the state where the nut body of the reference example is attached to the bolt body. It is characterized in that it can be fitted.

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According to the attachment device of claim 1, since the accommodation space portion that enables the nut body to be housed in the sandwiching portion is provided, the nut body is sandwiched in a state of being accommodated in the space portion, The nut body can be fitted and attached to the bolt body as it is, and as in the conventional example, once the nut body is fitted into the bolt body, the extra work of sandwiching the nut body gripping part from the opposite side Is no longer necessary.

According to the attachment device of the second aspect, in addition to the effect of the first aspect, when the attachment tool is rotated with respect to the bolt body in the state after the attachment, the attachment device is accommodated in the accommodation space portion. The nut body can be rotated with respect to the bolt body, with its gripping portion serving as a protrusion and being constrained by the shape of the housing space. That is, according to this attachment tool, the operation of attaching the nut body to the bolt body and the operation of rotating and tightening the nut body attached to the bolt body can be continuously performed.

According to the attachment device of the third aspect, in addition to the effect of the first or second aspect, the gripping portion is preferably hooked by the engaging step portion of the clamping portion, and the tightening force by the attachment tool slips on the nut. Transmitted without.

According to the attachment device of the fourth aspect, in addition to the effect of the third aspect, the gripping portion is evenly pressed by the inclined pressing surface that is provided in the clamping portion and presses the proximity portion in a matched state. It will not move or deform differently.

According to the attachment device of the fifth aspect, in addition to the effect of the fourth aspect, the pair of inclined pressing surfaces engage the gripping portion of the nut body before the deformation with the engagement step portion. When the nut body is gripped, since the interval between the parts that are equidistant from the shaft portion of the pair of inclined pressing surfaces is an inclined surface that becomes smaller as it approaches the shaft portion, the nut body The nut body can be pressed toward the bolt body in that state by the mounting tool that wraps and clamps the nut body, so that the initial mounting state of the nut body can be improved, and the nut body can be attached to the bolt body. Smooth and suitable attachment can be performed reliably.

According to the attachment device of the sixth aspect, in addition to the effect of the fifth aspect, the accommodation space portion attaches and rotates the nut body provided with the separation preventing function so that the function is reliably exhibited. Therefore, the nut body can be reliably prevented from separating from the bolt body.

According to the attachment device of the seventh aspect, in addition to the effects of the first to sixth aspects, a pair of holding recesses are provided inside the front end of the clamping portion, and the pair of grips of the nut body are provided by the holding recesses. Since the holding portion is held and clamped from the tip side and the nut body is plastically deformed and attached to the bolt body, the gripping portion is held so as not to come off. Smooth and suitable attachment to the body can be ensured.

According to the attachment device of the eighth aspect, in addition to the effect of the seventh aspect, the relief flat portion and the tip relief that move away from the holding portion of the nut body from the holding recess of the clamping portion to the tip side. Since the slope portion is provided, the force application point of the attachment tool to the grip portion of the nut body is closer to the shaft portion, and the nut body can be attached with a smaller force.

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The present invention is characterized by nut body holding and clamping means for ensuring the smooth and preferable attachment so that the nut body is held by the installation tool. The attaching means includes, as described above, an enveloping holding and clamping means having the housing space for wrapping and holding the nut body as a main part, and a holding recess for holding the tip of the gripping part of the nut body as the main part. The two types of nut holding and clamping means do not interfere with each other, and both can be mounted on the same mounting tool. It is also intertwined with the nut body corresponding to, and constitutes a complex combination relationship.

Therefore, regarding the present invention, the invention relating to the application is divided into two types, one relating to the envelope holding and clamping means and the one relating to the tip holding and clamping means, and is filed on the same day by the same applicant, The description of the best mode for carrying out the invention and the brief description of the drawings is exactly the same, and the present application relates to a package-type holding and clamping means.

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

FIG. 1 shows an example of the mounting tool of the present invention, where (a) is a front view, (b) is a side view, (c) is an enlarged front view of the main part, and FIG. 2 is a nut body of the present invention. (A) is a rear view, (b) is a front view, (c) is a front view, (d) is a cross-sectional view taken along arrow A in (b), (e) is an external perspective view, FIGS. 3A to 3E are partial front views showing a procedure for attaching the nut body of FIG. 2 with the attaching tool of FIG. 1, and in particular, FIG.

This attachment tool 5 is for plastically deforming the nut body 6 from the direction perpendicular to the axial direction of the bolt body B and attaching it to the bolt body B. This is the same as the attachment tool P shown in the conventional example.

The feature point has a pair of rotating bodies 1 (1R, 1L) which are provided so as to intersect with each other and are relatively rotatable around a shaft portion 2 provided in the intersecting portion 1a. In the state where the front end side of the crossing portion 1a grips the pair of gripping portions 6c of the nut body 6, by rotating around the shaft portion 2, the gripping portion 6c of the nut body 6 is sandwiched to hold the main body portion 6a. It is configured as a clamping part 4 that is plastically deformed and attaches the nut body 6 to the bolt body B.
Nut body holding and clamping means 3 for holding the nut body 6 so that the nut body 6 does not move relative to the clamping section 4 and is plastically deformed to be attached to the bolt body B. It is a point equipped with.

The nut body holding and clamping means 3 prevents the nut body 6 from coming off from the clamping portion 4, and solves the problem of solving the general-purpose attachment tool P of the above-described conventional example. The plastic deformation is maintained and the nut body can be smoothly and suitably attached.

There are two types of nut body holding / clamping means 3, that is, a holding mold holding / clamping means for holding the nut body 6 so as to wrap, and a tip-type holding / clamping means for holding the tip of the gripping portion 6 c of the nut body 6. 1 is an example of the envelope holding and clamping means, and is denoted by reference numeral 3A. Other examples of the package holding and clamping means will be described later as Example 3, and the tip holding and clamping means will be described later as Examples 5 and 6.

The envelope holding and clamping means 3A shown here covers the outer periphery of the bolt body B in a state where the nut body 6 is plastically deformed and clamped to be attached to the bolt body B, and the nut body 6 Is provided with a storage space 3a.

The engaging step portion 3b, the inclined pressing surface 3c, and the additional engaging step portion 3d are also characterized, and will be described in detail with reference to FIGS. Reference numeral 1b denotes a gripping operation unit for gripping and operating the attachment tool 5.

The nut body 6 to be attached to the attachment tool 5 is formed on the inner side with a main body portion 6a having an engagement protrusion 6b that engages with an outer surface screw of the bolt body B, and on the outer side of the main body portion 6a. In order to plastically deform 6a along the outer surface screw of the bolt body B, it is provided with a pair of gripping portions 6c gripped by the attachment tool 5, and has a U-shape as a whole.

In addition, the space formed between the proximal portions of the proximity portion 6d and the pair of gripping portions 6c as portions that are close to each other when both sides of the gripping portion 6c are attached can pass through the bolt body B, and can be opened. This will be referred to as part 6e. The angles α formed by the pair of gripping portions 6c and the main body portion 6a are equal.

The effect of the attachment tool 5 will be described in detail along the work procedure shown in FIG.

First, the nut body 6 is accommodated in the accommodation space portion 3a and is wrapped by the envelope holding and clamping means 3A of the attachment tool 5, and the gripping portion 6c of the nut body 6 is abutted against the engagement step portion 3b. Insert it in contact. In this state, the nut body 6 is externally fitted at a desired position of the bolt body B as shown in FIG.

If it does in this way, like the prior art example, after the nut body 6 is once fitted in the bolt body B, the extra work of pinching the gripping portion 6c of the nut body 6 from the opposite side becomes unnecessary.

The engagement step portion 3b is for engaging the grip portion 6c of the nut body 6, and the grip portion 6c is hooked on the engagement step portion 3b so that the tightening force by the attachment tool 5 is transmitted to the nut body 6 without slipping. The

In this state, as shown in the figure, the distance between the opposing surfaces of the pair of inclined pressing surfaces 3c closest to the engagement step portion 3b from the engagement step portion 3b to the additional engagement step portion 3d is set. When L1 is the distance between the opposing surfaces of the portion closest to the additional engagement step 3d, the relationship L1> interval L2 is established.

That is, the pair of inclined pressing surfaces 3c engage the gripping portion 6c of the nut body 6 before deformation with the engaging step portion 3b, and when the nut body 6 is gripped, the inclined pressing surface 3c shaft 2 The inclined surface is such that the distance between the parts that are equidistant from the shaft becomes smaller as the distance from the shaft portion 2 approaches.

Therefore, when the mounting tool 5 is pressed in the direction of the bolt body B while the nut body 6 is gripped in the state shown in the drawing, the force is transmitted to the nut body 6 via the gradient of the inclined pressing surface 3c, The engaging protrusion 6b on the inner surface of the nut body 6 is pressed against the outer surface screw of the bolt body B and engaged with the screw, thereby realizing a good initial state of attachment and ensuring a smooth and suitable attachment of the nut body. It can be done.

Next, when the attachment tool 5 is tightened, the pair of package holding and clamping means 3A of the attachment tool 5 are pressed so as to approach each other, and as a result, as shown in FIG. The body portion 6a is plastically deformed so as to wrap the bolt body B.

Further, when the attachment tool 5 is tightened, as shown in FIG. 3C, the pair of gripping portions 6 c of the nut body 6 is placed in the proximity portion 6 d on the side facing the attachment tool 5. 5 and receiving the pressing force from the inclined pressing surface 3c provided subsequent to the engaging step 3b, and gradually approaching each other at the same time. Due to the contact at, the thrust in the direction of the shaft portion 2 of the attachment tool 5 is received and moved in the direction of the shaft portion 2.

The inclined pressing surface 3c presses the proximity portion 6d, which is the side surface of the pair of gripping portions 6c of the nut body 6, from the lower level of the engaging step portion 3b toward the intersecting portion 1a. As a result, the gripping portion 6c is pressed evenly while receiving the above-mentioned thrust, so that it does not move or deform differently on the left and right.

Further, when the attachment tool 5 is tightened, the plastic deformation of the main body portion 6a proceeds until the adjacent portions 6d of the nut body 6 come into contact with each other as shown in FIG.

After the attachment is completed, if the attachment tool 5 is rotated as it is, only the gripping portion 6c of the nut body 6 protrudes as shown in FIG. It is regulated within the accommodation space 3 a of the attachment tool 5 and co-rotates with the attachment tool 5.

That is, the size (effective radius) of the space formed by the accommodation space 3a is larger than the outer diameter of the main body 6a of the nut body 6, but smaller than the outer diameter including the end of the gripping portion 6c. The nut body 6 is restricted by the attachment tool 5 and rotates together.

Thus, according to this attachment tool 5, by providing the accommodation space portion 3a as compared with the conventional tool, the gripping portion 6c can hold the nut body 6 in the state of being accommodated in the space portion 3a. It can be pinched, and can be attached to the bolt body B as it is, and labor can be saved compared with the conventional example.

Further, when the attachment tool 5 is rotated with respect to the bolt body B in the state after the attachment, the nut body 6 accommodated in the accommodation space portion 3a has the gripping portion 6c as a protrusion, The nut body 6 can be rotated with respect to the bolt body B by being constrained by the shape of the housing space 3 a and rotating together. That is, according to the attachment tool 5, the operation of attaching the nut body 6 to the bolt body B and the operation of rotating and tightening the nut body 6 attached to the bolt body B are continuously performed. be able to.

Moreover, the effect of said attachment tool 5 is exhibited also as the attachment apparatus 10 (a code | symbol is described in FIG. 3) which is a combination with the said nut body 6. FIG.

FIG. 4 shows another example of the nut body of the present invention, where (a) is a rear view, (b) is a front view, (c) is a front view, and (d) is a cross-sectional view taken along arrow A1 in (b). FIG. 5 (e) is an external perspective view, and FIGS. 5 (a) to 5 (d) are partial front views showing a procedure for attaching the nut body of FIG. 3 with the attaching tool of FIG. Accordingly, the same parts as those already described are denoted by the same reference numerals and redundant description is omitted.

The nut body 6A shown in FIG. 4 is attached to the bolt body B with the attaching tool 5 of FIG. 1, but the length of the pair of gripping portions 6f and 6h is shorter than that of the nut body 6 of FIG. In contrast, one longer side is referred to as a long grip portion 6f, and the other shorter side is referred to as a short grip portion 6h.

The inner proximity portion 6d of the long grip portion 6f is provided with a separation preventing portion 6g that is a recess into which the short grip portion 6h is fitted when the nut body 6A is attached to the bolt body B.

As will be described with reference to FIG. 4, when the nut body 6A is continuously attached to the bolt body B by the attachment tool 5 and rotated, the short grip portion 6h is fitted into the separation preventing portion 6g. The state is maintained, and the separation prevention state is maintained.

The bending angles β and γ of the long gripping portion 6f and the short gripping portion 6h with respect to the main body portion 6a are not the same as those of the nut body 6 (angle α) in FIG. This is because, for example, the force acting on the long gripping portion 6f and the short gripping portion 6h is different, and the short gripping portion 6h is bent more quickly to fit into the separation preventing portion 6g of the long gripping portion 6f. Therefore, it is determined by trial and error.

The procedure for attaching the nut body 6A will be described in detail with reference to FIG.

First, the nut body 6A is encased by the enveloping holding and clamping means 3A of the attachment tool 5 so that the nut body 6A is accommodated in the accommodating space 3a. Then, the short grip portion 6h is sandwiched so as to abut on the additional engagement step portion 3d.

Subsequently, the nut body 6A is externally fitted at a desired position of the bolt body B as shown in FIG. 5 (a) while the nut body 6A is sandwiched and wrapped. At this time, compared with the conventional example, it is possible to save the trouble of once fitting the nut body 6A to the bolt body B and then sandwiching the nut body 6A with the attachment tool 5.

In this case as well, the inclined pressing surface 3c following the engagement step portion 3b and the contact surface of the additional engagement step portion 3d are widened in this gripping state. The nut body 6A is transmitted to the nut body 6A through the pressing surface 3c and the like, and the inner surface of the nut body 6A can be brought into screw contact with the outer surface screw of the bolt body B. Suitable attachment can be reliably performed.

This additional engagement step portion 3d is for engaging the short gripping portion 6h of the nut body 6A, and the gripping portions 6f and 6h are suitably hooked by the cooperation with the engagement step portion 3b, so that The tightening force by the tool 5 is transmitted to the nut body 6A without slipping.

Next, when the attachment tool 5 is tightened, as shown in FIG. 5 (b), the pair of package holding and clamping means 3A of the attachment tool 5 are pressed so as to approach each other. The long gripping portion 6f and the short gripping portion 6h are plastically deformed so as to approach each other, and the main body portion 6a wraps the bolt body B.

When the attachment tool 5 is further tightened, as shown in FIG. 5C, the plastic deformation of the main body portion 6a proceeds until the proximity portions 6d of the nut body 6A come into contact with each other, and the nut body 6A is gripped shortly. The end portion of the portion 6h is in an engaged state in which it can be fitted into the separation preventing portion 6g of the long grip portion 6f.

After the attachment is completed, if the attachment tool 5 is rotated in the direction of the black arrow as it is, as shown in FIG. The separation preventing portion 6g of the long gripping portion 6f is bent toward the short gripping portion 6h by being restricted by the additional engagement step portion 3d of 3A, and the separation of the long gripping portion 6f of the attachment tool 5 is prevented. The nut body 6A is co-rotated while being kept in a good state of preventing separation by being restricted by the rotation.

In this example, the long gripping portion 6f of the nut body 6A is restricted by the additional engagement step portion 3d, but even if this additional engagement step portion 3d is not provided, the size of the space formed by the accommodation space portion 3a. If the diameter (effective inner diameter) is larger than the outer diameter of the main body portion 6a of the nut body 6A, but smaller than the outer diameter including the end portion of the long grip portion 6f, the nut body 6A can be attached to the attachment tool 5 It will be co-rotated by being regulated by

Thus, according to this attachment tool 5, in addition to exhibiting the same effect as the case of the normal nut body 6 with respect to the nut body 6A having the separation preventing function, the separation preventing function of the nut body 6A is further improved. Can be fully demonstrated.

Moreover, the effect of said attachment tool 5 is exhibited also as attachment apparatus 10A (a code | symbol is described in FIG. 5) which is a combination with the said nut body 6A.

The additional engagement step 3d of the attachment tool 5 is necessary when attaching a nut body having a separation preventing function such as the nut body 6A. Rather, it can be omitted.

FIG. 6A is an external perspective view showing another example of the nut body of the present invention, and FIG. 6B is an enlarged front view of a main part showing another example of the mounting tool of the present invention.

This nut body 6B is different from the nut body 6 of FIG. 2 in that the shape of the main body portion 6a ′ is not U-shaped but rectangular.

Correspondingly, the attachment tool 5A for attaching the nut body 6B has a shape of the accommodation space portion 3a 'of the envelope holding and clamping means 3B as compared with the attachment tool 5 of FIG. The difference is that the shape is closer to a rectangle along the shape of the main body 6a 'of 6B.

Even if comprised in this way, this nut body 6B and the attachment tool 5A will exhibit the same effect as said nut body 6 and the attachment tool 5 as an attachment tool and an attachment apparatus.

FIGS. 7A to 7C are external perspective views illustrating various nut bodies that can be attached with the attachment tool of FIG. 1.

The nut body 6C in FIG. 7A has a long main body portion 6i and a pair of gripping portions 6c provided at both ends in the longitudinal direction.

Since such a nut body 6C is screw-engaged with the bolt body B in a section where the engaging projection 6b is longer, the nut body 6C and the bolt body B can be more firmly attached.

The nut body 6D in FIG. 7B is obtained by connecting the rectangular nut bodies 6B shown in FIG. 6 back to back via the joint plate portion 6j. Such a nut body 6D can be used when the additional bolt body B is shifted to the bolt body B and added.

In the nut body 6E of FIG. 7C, the main body portion 6k is long like FIG. 7A, but the gripping portions 6c ′ are provided only in a pair at the center portion, not at both ends, Further, the separate separation preventing member 7 is characterized in that the separation prevention can be made more complete after being attached to the bolt body B.

Such a nut body 6E can be more firmly attached to the bolt body B in the same manner as the nut body 6C, and more completely prevents the nut body 6E from being separated from the bolt body B. be able to.

The attachment tool 5 of the present invention can be used for attaching any of the nut bodies 6C, 6D, 6E described above, and exhibits the same effect. This effect is also exhibited as an attachment device that is a combination with each nut body.

FIG. 8 shows another example of the mounting tool of the present invention, where (a) is a front view, (b) is a side view, (c) is an enlarged front view of the main part, and FIG. 9 is a nut of the present invention. It shows another example of the body, (a) is a rear view, (b) is a front view, (c) is a front view, (d) is a cross-sectional view taken along arrow A2 in (b), and (e) is an external perspective view. FIGS. 10 (a) to 10 (c) are partial front views showing a procedure for attaching the nut body of FIG. 9 with the attaching tool of FIG. 8, and FIG. 10 (d) is a tip holding and clamping means of FIG. The enlarged view of a part and (d) are the enlarged views of the tip type holding | maintenance clamping means part of the attachment tool of another example.

The attachment tool 5B is different from the attachment tool 5 of FIG. 1 in that the holding part 4 is provided with a tip holding and clamping means 3C in addition to the existing package holding and holding means 3A. Is different.

The tip-type holding / clamping means 3C is provided at the tip part 3e that does not interfere with the back part (the one closer to the shaft part 2) of the clamping part 4 where the envelope-type holding / clamping means 3A is provided. It is configured as a semicircular holding recess 3eb provided at an appropriate position on the flat surface portion 3ea.

On the other hand, when using the attachment tool 5B provided with the tip holding and clamping means 3C, the nut body 6 of FIG. 2 and the nut bodies 6C to 6E of FIG. The nut body 6F is preferably attached.

As shown in FIG. 9, the nut body 6 </ b> F is provided with a locking recess 6 m on the outside of the two gripping portions 6 c and on the side in contact with the attachment tool 5 </ b> B, as compared with the nut body 6 of FIG. 2. Is different.

In such a combination, the holding recess 3eb of the attachment tool 5B cooperates with the locking recess 6m until the nut body 6F is plastically deformed and attached to the bolt body B. And the nut body 6F is held so that the grip portion 6c does not come off and functions as the tip holding and clamping means 3C.

The shape of the holding recess 3eb (the tip holding / clamping means 3C) is not limited to the semicircular shape in this example, but the gripping portion 6c until the nut body 6F is plastically deformed and attached to the bolt body B. Any shape may be used as long as it is constrained so as not to come off, and it may be a rectangle or a trapezoid that becomes wider toward the back.

The effect of this attachment tool 5B will be described in detail along the work procedure shown in FIG.

First, as shown in FIG. 10A, the nut body 6F is externally fitted at a desired position of the bolt body B, and the tip of the gripping portion 6c of the nut body 6F containing the bolt body B is attached to the attachment tool 5B. Is inserted into the tip holding and clamping means 3C (holding recess 3eb).

In addition, since the tip of the grip portion 6c of the nut body 6 is fitted in the holding recess 3eb, the nut body 6F may be pulled toward the bolt body B without moving with respect to the attachment tool 5C. Thus, the inner surface of the nut body 6F and the outer surface of the bolt body B are screw-engaged, and a good initial state of attachment is maintained, so that smooth and suitable attachment of the nut body to the bolt body can be reliably performed. .

Next, when the attachment tool 5B is tightened, the pair of tip holding / clamping means 3C of the attachment tool 5B is pressed so as to approach each other, and as a result, as shown in FIG. The body portion 6a is plastically deformed so as to wrap the bolt body B.

Further, when the attachment tool 5B is tightened, as shown in FIG. 10C, the plastic deformation of the main body portion 6a proceeds until the adjacent portions 6d of the nut body 6F come into contact with each other.

After the attachment is completed, if the holding tool 5A is used and the holding tool 5 is rotated as shown in FIG. The body 6 can be rotated, but this is done as needed.

Note that FIGS. 10D and 10E will be described in the sixth embodiment.

Thus, according to the attaching tool 5B, the tip-type holding and clamping means 3C can smoothly and suitably attach the nut body to the bolt body as in the case of the above-described package holding and holding means 3A and 3B. It can be worn reliably.

The tip holding / clamping means 3C may be provided in the clamping part 4 in combination with the envelope holding / clamping means 3A as in this example, but may be provided alone.

Moreover, the effect of said attachment tool 5B is exhibited also as the attachment apparatus 10B (a code | symbol is described in FIG. 10) which is a combination with the said nut body 6F. Moreover, the attachment tool 5B and the attachment device 10B can be applied to the nut bodies 6, 6A, and 6C to 6E described in the first, second, and fourth embodiments. The nut body 6F suitable for the attachment tool 5B provided with the tip holding and clamping means 3C can be in the same mode as the nut bodies 6A to 6E.

FIG. 11 shows another example of the mounting tool of the present invention, in which (a) is a front view, (b) is a side view, and (c) is an enlarged front view of a main part.

This attachment tool 5C is provided with the same tip holding / clamping means 3D as the attachment tool 5B of FIG. 8, but the shape of the tip holding / clamping means 3D is the tip holding / clamping means of FIG. Different from the means 3C.

Specifically, the flat portion 3fa on the back side of the tip portion 3f of the tip holding / clamping means 3D and the semicircular holding recess 3fb following this are formed by the tip holding / clamping means 3C of FIG. Although the flat part 3ea and the holding recess 3eb are shared, the tip side relief flat part 3fc from the holding recess 3fb closes the tip of the tool 5C when compared to the back side flat part 3fa. However, the distance D is different from the distance D so that a gap of a predetermined distance 2D is created (the distance 2D is twice the distance D).

Another difference is that a tip relief slope portion 3fd is provided at the tip portion of the relief flat portion 3fc so as to produce a ▽ -shaped gap when the tip of the tool 5C is closed.

The method of attaching the nut body 6F of FIG. 9 to the bolt body B using such an attachment tool 5C is the same as that of the attachment tool 5B of FIG. 8 from FIG. 10 (a) to immediately before (c). Same as the case.

Differences will be described with reference to FIGS. 10 (d) and 10 (e). FIG. 10 (d) shows an enlarged detail of the tip holding / clamping means 3C portion when the attachment tool 5B of FIG. 8 is used in FIG. 10 (c), and FIG. 10 (e) is a view of FIG. The details of the tip holding / clamping means 3D when the attachment tool 5C is used are shown.

Comparing these drawings, in the case of FIG. 10 (d) using the attachment tool 5B, the gripping portion 6c of the nut body 6F is tightened by receiving the force F at the tip of the attachment tool 5B. In the case of FIG. 10E using the attachment tool 5C, it can be seen that the gripping portion 6c of the nut body 6F is tightened by receiving the force f on the distal end side of the holding recess 3fb of the attachment tool 5C.

In the case of the attachment tool 5C, the escape flat portion 3fc is retreated by the distance D, and the tip escape gradient portion 3fd is provided at the tip, so that the arc portion of the holding recess 3fb is first formed on the nut body 6F. It is considered that this is because the force f acts on the tip step portion of the locking recess 6m.

In this case, in the case of using the attachment tool 5C, the force between the attachment tools 5B and 5C and the nut body 6F in FIGS. 10 (d) and 10 (e) is compared with the case of using the attachment tool 5B. As can be seen from the comparison of the action points (F, f), the position is farther from the central axis of the bolt body B to which the nut body 6F is attached, and is closer to the shaft portion 2 side of the attachment tool 5C.

Therefore, according to the lever principle, the force f for deforming the nut body 6F is smaller than the force F in the case of the tool B, and as a result, the force for operating the grip operation part 1b of the attachment tool 5C becomes smaller, resulting in Moreover, according to the attachment tool 5C, the nut body 6F can be attached with a smaller force.

The idea of moving the point of action of the force in the direction of reducing the operating force of the tool was obtained as a result of repeated experiments that the tightening state of the nut body 6F does not change even if such movement is made. Is.

That is, according to the attachment tool 5C, it has the same effect as the attachment tool 5B of the fifth embodiment, and also exhibits the effect that the nut body 6F can be attached to the bolt body B with a smaller operating force. This is important when attaching a large number of nut bodies.

The tip holding / clamping means 3D may be provided in the clamping part 4 in combination with the envelope holding / clamping means 3A as in this example, but may be provided alone.

Moreover, the effect of said attachment tool 5C is also exhibited as an attachment device 10C (indicated by reference numerals in FIG. 10 (e)) that is a combination with the nut body 6F. Moreover, the attachment tool 5C and the attachment device 10C can be applied to the nut bodies 6, 6A, and 6C to 6E described in the first, second, and fourth embodiments. The nut body 6F suitable for the attachment tool 5C provided with the tip holding and clamping means 3D can be in the same manner as the nut bodies 6A to 6E.

FIGS. 12A and 12B are diagrams for explaining a usage mode of the nut body of FIG. 9, wherein FIG. 12A is a perspective view showing a state in which the nut body is attached to the bolt body, and FIG. 12B is a nut in the attached state. The perspective view of the attachment holding | maintenance metal fitting used for a body, (c) is B1 arrow directional view of (b), (d) is A3 sectional drawing of (c), (e) is the perspective view which shows the attachment holding | maintenance state of a nut body. FIG. 5F is a view taken in the direction of arrow B2 in FIG.

When the nut body 6F of FIG. 9 is used in combination with the attachment tools 5B and 5C provided with the tip holding and clamping means 3C and 3D as described in the fifth and sixth embodiments, the locking recess 6m is a nut. Although the function of holding the body 6F is made better, the locking recess 6m is originally intended to be used in combination with the attachment holding bracket 8 as described in FIG. It is.

This attachment / holding metal fitting 8 exhibits the same function as the separation preventing member 7 shown in FIG. 7 and has the same overall shape, and has a shape in which a cylinder is vertically divided in half.

The outer diameter of the attachment holding metal fitting 8 extends from the center of the bolt body B of the attached nut body 6F to the outside of the locking recess 6m, and is uniform in the axial direction. The inner diameter of the upper portion 8a of the attachment holding metal fitting 8 is such that the outer diameter of the outer surface screw of the bolt body B is fitted without looseness, and the inner diameter of the lower portion 8b is the main body portion 6a of the nut body 6F in the attached state. Can be fitted without rattling.

A holding hole 8c into which the locking recess 6m of the nut body 6F in the attached state is fitted without backlash is provided at the center in the circumferential direction of the lower part 8b of the attachment holding metal fitting 8. A pair of opposing locking projections 8d are provided at the open end.

The locking protrusion 8d includes a guide gradient portion 8da on the opening side and a rear stage portion 8db on the opposite opening side.

In order to hold the attached state of the nut body 6F with this attaching / holding metal fitting 8, as shown by a two-dot chain broken line arrow D in FIG. 12 (a) with the orientation shown in FIG. 12 (b), From the axial direction of the bolt body B, it is preferable to set so that the holding hole 8c of the attachment holding metal fitting 8 fits into the locking recess 6m of the nut body 6F.

Then, the attachment state of the nut body 6F to the bolt body B is maintained in the state shown in FIGS. 12 (e) and 12 (f).

In this state, the movement of the attachment holding metal fitting 8 in the direction perpendicular to the axial direction of the bolt body B is restricted by the engagement between the edge forming the holding hole 8c and the locking recess 6m of the nut body 6F. The axial movement of the bolt body B is caused by the engagement between the rear stage portion 8db of the locking projection 8d provided at the opening end of the holding hole 8c of the attachment holding bracket 8 and the lower end of the gripping portion 6c of the nut body F. As a result, unless the intended operation is performed, the attachment holding metal fitting 8 is not detached from the nut body 6F, and the attached state of the nut body 6F is maintained.

The gripping part 6c of the nut body 6F is plastically deformed so as to contact each other, but does not reach the complete contact, leaving an elastically deformable part to the extent that a certain gap is left. The engagement state between the holding hole 8c of the holding metal fitting 8 and the locking recess 6m of the nut body 6F is maintained.

Further, the guide gradient portion 8da of the locking projection 8d provided at the opening end of the holding hole 8c of the attachment holding metal fitting 8 is used when the holding hole 8c is fitted into the locking recess 6m of the nut body 6F. , Making it easier to fit.

The combination of the various nut bodies and the mounting tool is not limited to those described above, and other combinations are possible, and each effect is exhibited.

In particular, the nut body that varies the length of the gripping part to exhibit the separation preventing function is not limited to the above example, and the same configuration is applied to other nut bodies that do not have the separation preventing function. Thus, the separation preventing function can be exhibited. In this case as well, the attachment tool and attachment device of the present invention can be used and exhibit the same effect.

The mounting tool, mounting device, nut body, and mounting bracket of the present invention are hung from the ceiling at a construction site or the like, and these are mounted on the bolt body for mounting the electrical wiring support, wiring, and equipment. It is preferably used to easily attach supporters, instruments, etc., but is not limited to this, and it is necessary to attach additional equipment without removing other existing equipment from the desired part of the bolt body It can be suitably used in any industrial field.

An example of the attachment tool of this invention is shown, (a) is a front view, (b) is a side view, (c) is a principal part enlarged front view. An example of the nut body of the present invention is shown, (a) is a rear view, (b) is a front view, (c) is a front view, (d) is a cross-sectional view taken along arrow A in (b), (e) Is an external perspective view (A)-(e) is a partial front view which shows the procedure which attaches the nut body of FIG. 2 with the attachment tool of FIG. 1, Especially, (c) is the principal part front view. The other example of the nut body of the present invention is shown, (a) is a rear view, (b) is a front view, (c) is a front view, (d) is a sectional view taken along arrow A1 in (b), (e ) Is an external perspective view (A)-(d) is a partial front view which shows the procedure which attaches the nut body of FIG. 3 with the attachment tool of FIG. (A) is an external appearance perspective view which shows the other example of the nut body of this invention, (b) is a principal part enlarged front view which shows the other example of the attachment tool of this invention. (A)-(c) is an external appearance perspective view which illustrates the various nut bodies which can be attached with the attachment tool of FIG. The other example of the attachment tool of this invention is shown, (a) is a front view, (b) is a side view, (c) is a principal part enlarged front view. The other example of the nut body of the present invention is shown, (a) is a rear view, (b) is a front view, (c) is a front view, (d) is a sectional view taken along arrow A2 in (b), (e ) Is an external perspective view (A)-(c) is a partial front view which shows the procedure which attaches the nut body of FIG. 9 with the attachment tool of FIG. 8, (d) is an enlarged view of the tip-type holding | maintenance clamping means part of (c). , (E) is an enlarged view of the tip holding / clamping means portion of the attachment tool of another example. The other example of the attachment tool of this invention is shown, (a) is a front view, (b) is a side view, (c) is a principal part enlarged front view. 9A and 9B illustrate a usage mode of the nut body of FIG. 9, in which FIG. 9A is a perspective view showing a state in which the nut body is attached to the bolt body, and FIG. 9B is a view to be used for the nut body in the attached state. (C) is a B1 arrow view of (b), (d) is a cross-sectional view of A3 of (c), (e) is a perspective view showing the attachment and holding state of the nut body, (f) ) B2 arrow view of (e) (A), (b) is a conceptual diagram which shows the procedure which attaches a nut body with the conventional attachment tool

DESCRIPTION OF SYMBOLS 1 Rotating body 1a Crossing part 2 Shaft part 3 Nut body holding | maintenance clamping means 3A, 3B Enclosure holding clamping means 3C, 3D Tip type holding clamping means 3a Storage space part 3b Engagement step part 3c Inclination pressing surface 3d Additional engagement Stepped portion 3eb Holding recess 3fb Holding recess 3fc Relief flat portion 3fd Tip relief gradient portion 4 Clamping portion 5-5C Mounting tool 6-6F Nut body 6a Main body portion 6a 'Main body portion 6b Engaging protrusion 6c Grip portion 6c ′ Grip portion 6d Proximity portion 6e Opening portion 6f Long grip portion 6g Separation prevention portion 6h Short grip portion 6i Main body portion 6j Joint plate portion 6k Main body portion 6m Locking recess 7 Separation prevention member 8 Attachment holding bracket 10 to 10C Device B Bolt body

Claims (8)

A mounting device comprising a nut body that can be plastically deformed from a direction perpendicular to the axial direction of the bolt body and can be attached to the bolt body, and an attachment tool for attaching the nut body to the bolt body. And
The nut body is formed on the inner side with an engagement protrusion that engages with an outer surface screw of the bolt body, and is formed on the outer side of the main body portion, and the main body portion is plastic along the outer surface screw of the bolt body. A pair of gripping parts gripped by the attachment tool in order to deform,
The attachment tool includes a pair of rotating bodies that are provided so as to intersect with each other, and are relatively rotatable about a shaft portion provided at the intersecting portion, and from the intersecting portion of the rotating body. With the distal end side gripping the pair of gripping portions of the nut body, the nut body is plastically deformed by pinching the nut body gripping portion by rotating around the shaft portion. Is configured as a clamping part to be attached to the bolt body,
The clamping portion covers an outer periphery of the bolt body in a state where the nut body is plastically deformed and clamped to be attached to the bolt body, and an accommodation space portion that accommodates the nut body inside the bolt body. An attachment device characterized by comprising. The accommodation space portion is configured to rotate the nut body relative to the bolt body by rotating the attachment tool in a state after the nut body is attached. The attachment device according to claim 1. The attachment apparatus according to claim 1, wherein the clamping portion includes a pair of engagement step portions that engage with a grip portion of the nut body. The sandwiching portion includes a pair of inclined pressing surfaces that press the adjacent portions, which are side surfaces of the pair of gripping portions of the nut body, from the stepped portion of the engaging stepped portion toward the intersecting portion. The attachment device according to claim 3, wherein the attachment device is provided . When the gripping portion of the nut body before deformation is engaged with the engaging stepped portion and the nut body is gripped, the pair of inclined pressing surfaces are separated from the shaft portions of the pair of inclined pressing surfaces. 5. The attachment device according to claim 4, wherein an inclined surface is formed such that an interval between parts at equal distances becomes smaller as the shaft portion is approached. The nut body has a pair of gripping portions, a longer long gripping portion provided with a separation prevention portion on the inside, and a shorter short length configured to fit into the separation prevention portion when the nut body is plastically deformed. And a grip part,
The clamping portion further includes an additional engagement step portion on the intersecting portion side of the inclined pressing surface, the long grip portion of the nut body is the engagement step portion, and the short grip portion of the nut body is the Configured to receive at the additional engagement step,
When the nut body is attached to the bolt body with the attachment tool, the separation preventing portion is engaged with the short gripping portion, and the separation preventing state of the pair of gripping portions of the nut body is maintained. 6. The attachment device according to claim 5, wherein the nut body can be rotated with respect to the bolt body with the attachment tool in a state of being attached . A pair of holding recesses are provided inside the front end of the clamping part, and the holding body clamps the pair of gripping parts of the nut body from the front end side by the holding recess, and the nut body is plastically deformed to cause the bolt body The attachment device according to any one of claims 1 to 6, wherein the holding portion is held so as not to be detached until the attachment portion is attached . The attachment device according to claim 7, wherein a relief flat surface portion and a tip relief gradient portion that are away from the gripping portion of the nut body are provided on the distal end side from the holding recess of the clamping portion.

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