JPS6340270Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides a long groove in a part of the male threaded part of the other which is loosely inserted into one of the through holes, and provides a part that does not engage with the female threaded part of the through hole, thereby increasing the clamping pressure. The present invention relates to a detachable clamping device equipped with a screw mechanism capable of instantaneously exerting its functions.

As previously shown in Japanese Utility Model Publication No. 43-8841, a bolt is provided with a threaded portion of a certain width and a threadless guide groove as a fixing device, and a screw is provided with a threadless guide groove that corresponds to the threaded portion. A nut having a threaded part is screwed into the threaded part, and the rear part of the nut has a full-circumference threaded part without a guide groove.

Or as shown in Publication No. 57-13343,
As a plating jig, a fixing bolt to a hook suspended in the plating tank is provided protruding from one side, and an aluminum piece is loosely inserted into the fixing bolt in a replaceable manner, and the jig body is clamped between the hook and one side. In the tubular part provided in the jig body facing the aluminum piece, a piece of stainless steel with some female threads engraved is embedded so that the female thread is located along the insertion hole, and the female thread is screwed. There was also a structure in which a screw rod having a flat surface formed on a part thereof was passed through the insertion hole, and a protrusion for crimping onto the object to be plated was formed at the tip of the screw rod.

However, although the above-mentioned conventional techniques are capable of smoothly and quickly engaging and disengaging the object to be held by forming a threadless portion, they do not provide a temporary means for preventing the object from coming off by engaging a screw. Therefore, the male screw etc. may come off all at once, causing the object to be clamped to come off and fall, which is extremely dangerous, and has the problem of requiring a device to catch it.

The present invention includes a female engaging body provided in a through hole with a female threaded part that forms a part of the peripheral wall of the hole, a female engaging body that is loosely inserted into the female engaging body, and a male threaded part carved in the peripheral wall. The male engaging body is partially provided with a long groove having a width and depth that does not engage with the female threaded portion, and either the male engaging body or the female engaging body is clamped during loose insertion. This locking mechanism is equipped with a screw mechanism that allows it to respond to areas where force is applied at once, shorten the rotation distance, and speed up the connection and disconnection of objects to be held, thereby eliminating the drawbacks of the conventional methods described above. This invention relates to a removable clamping device, and one embodiment thereof will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a female engaging body, which has a through hole 2 bored in the center, and a female thread that forms a part of the hole peripheral wall 3 and projects into the through hole 2. Section 4 is provided. The female threaded portion 4 can be formed separately by providing a cutout in the through hole 2 portion in advance, fitting the female threaded portion 4 into the cutout, and securing the female threaded portion 4 with a screw. In some cases, it is formed integrally with the peripheral wall 3. Reference numeral 5 denotes a screw for fixing the female engagement body 1 to the attachment surface 7 of the object to be held 6, which is passed through the female engagement body 1 having a ?-shaped cross section and screwed onto the attachment surface 7. Reference numeral 8 denotes a male engaging body having a diameter that allows it to be loosely inserted into the through hole 2 of the female engaging body 1, and a male threaded portion 9 screwed into the female threaded portion 4 of the female engaging body 1 on the peripheral wall.
The male threaded portion 9 is engraved with a width and depth that does not engage with the female threaded portion 4 in the longitudinal direction, and a retaining edge of the male engaging body 8 is provided at the groove end. When the long groove 10 is provided and the long groove 10 is made to correspond to the female threaded portion 4, the male engaging body 8 is movably fitted into the female engaging body 1 in a loose state. By further rotating the male engaging body 8 in the loose state, the male threaded part 9 of the male engaging body 8 is screwed into the female threaded part 4 of the female engaging body 1, and the tip of the male engaging body 8 is fixed. The object to be held 6 on the surface 7 is pressed and the object is held. 11 is a shaft 1 at the end of the male engaging body 8.
A handle for operating the two male engaging bodies 8 is attached so that it can be raised and folded freely. Reference numeral 13 denotes a member for holding an object 14 to be held such as an extruded shape or a plate provided with the holding device of the present invention, and a hook-shaped hanging part 15 is provided at the upper part and an H-shaped holding part 16 is provided at the lower part. A through hole 2' is bored in one side of the through hole 2', and a female screw portion 4' is provided in a part of the circumferential wall of the through hole 2', and the female screw part 4' projects into the through hole 2'.
A long groove 1 having a width and depth such that the male threaded portion 9' and the female threaded portion 4' do not engage with each other is formed in the peripheral wall of the through hole 2'.
A male engaging body 8' provided with 0' is loosely inserted therein.

The present invention is based on the drawings 1 to 3 and 8.
As shown in FIGS. 11 to 11, there is a case in which the female engaging body 1 and the object to be held 6 are set at a constant interval so that the male engaging body 8 can be freely engaged and detached, and as shown in FIGS. 4 to 7. ,
There are cases in which the male engaging body 8 is provided protruding from the fastening surface 7 so that the female engaging body 1 can be freely engaged and detached. A locking pawl 19 formed at the tip of the rotary handle 17 is inserted into the through hole 2, and the locking pawl 19 is inserted into the step groove 20 formed in the middle part of the male engaging body 8. When locked, the male engaging body 8 is pushed up by the screw action of the rotary handle 17's own weight, thereby ensuring the screwing of the male threaded portion 9 into the female threaded portion 4 of the female engaging body 1. At this time, in order to strengthen the lever action,
A weight body 21 is attached to the end of the rotating handle 17.

Further, in the present invention, the female threaded portion 4 of the female engaging body 1 may be made to be freely movable forward and backward by the screw rod 22.

One embodiment of the removable clamping device with a screw mechanism according to the present invention is constructed as described above. Attachment surface 7 of molding machine etc.
When fixing the object to the attachment surface 7, first attach the object 6 to the attachment surface 7.
After that, insert the male engaging body 8 into the through hole 2 of the female engaging body 1 attached to the fastening surface 7 side in advance, and insert the long groove 10 provided in the male threaded part 9 of the male engaging body 8 into the through hole 2.
The male engaging body 8 is loosely inserted into the through hole 2 so that the male threaded part 9 and the female threaded part 4 are in a disengaged state in correspondence with the female threaded part 4 provided in the hole peripheral wall 3, Male engaging body 8
At once, apply the tip of the to the object to be held 6, then rotate the handle by holding the handle 11 of the male engaging body 8, and insert the male threaded part 9 of the male engaging body 8 into the female threaded part 4 of the female engaging body 1. By screwing together, the object to be held 6 is clamped and fixed by the tip of the male engaging body 8 and the fastening surface 7. Also, when removing the held object 6 which is in a fixed state,
Hold the handle 11 of the male engaging body 8 and rotate it in the opposite direction to the above, and while loosening the threaded connection between the male threaded part 9 and the female threaded part 4, remove the long groove 10 of the male threaded part 9 from the through hole 2. The female threaded portion 4 of the male threaded portion 9 corresponds to the female threaded portion 4.
After releasing the engagement, the male engaging body 8 is placed in a loosely inserted state, and the male engaging body 8 is pulled upward to release the clamping, and then the clamped object 6 is removed.

Furthermore, when the object 6 to be clamped is clamped using a device in which the male engaging body 8 shown in FIGS. 4 to 7 is provided to protrude from the fastening surface 7 and the female engaging body 1 is engaged and released. , the male engaging body 8 is made to protrude from the attachment surface 7, the object to be held 6 is inserted through the male engagement object 8, and the object 6 is brought into contact with the attachment surface 7; 8, fit the female threaded part 4 of the through hole 2 into the long groove 10 of the male engaging body 8, put the female engaging body 1 in a loosely inserted state, and then cover the female engaging body 1 at once. After contacting the holding object 6, turn the rotating handle 17 attached to the female engaging body 1 to connect the female threaded portion 4 in the through hole 2 of the female engaging body 1 to the male threaded portion 9 of the male engaging body 8.
The object to be held 6 is clamped and fixed between the female engaging body 1 and the fixing surface 7 by screwing the female engaging body 1 into the fixing surface 7.
At this time, the locking pawl 19 at the tip of the rotating handle 17 locks into the stepped groove 20 of the male engaging body 8, exerting a lever action due to its own weight, and the male threaded part 9 and the female threaded part 4
This eliminates the backlash that occurs when screwed together and enables reliable screwing. Furthermore, when removing the object 6 in the clamped and fixed state, rotate the rotary handle 17 in the opposite direction to loosen the tightening female engagement body 1, and then tighten the female threaded portion 4 of the female engagement body 1. Correspond to the long groove 10 of the engaging body 8, unscrew it, put the female engaging body 1 in a loosely inserted state, and pull it out from the male engaging body 8, and also pull out the held object 6 from the male engaging body 8. It removes the tension.

Furthermore, as shown in FIGS. 8 and 9, when an object to be held 14 such as an extruded shape or a plate is suspended by the hanging member 13 provided with the clamping device of the present invention, Lower clamping part 16 in member 13
Insert the object 14 to be held, insert the male engaging body 8 into the through hole 2' formed in one side of the holding part 16, and after applying the tip to the object 14, insert the male engaging body 8. ' by rotating the male threaded part 9' of the male engaging body 8' to the female threaded part 4' forming a part of the hole peripheral wall of the through hole 2'.
are screwed together to tighten the gap between them, and the object 14 to be held is held between the male engaging body 8' and the holding part 16. In addition, when removing the clamped object 14, loosen the screw of the male engaging body 8' and remove the long groove 1.
0' corresponds to the female threaded portion 4', and the male engaging body 8' is loosely inserted into the through hole 2' to release the clamped state and enable removal of the clamped object 14. .

As mentioned above, the removable clamping device with the screw mechanism according to the present invention has a female thread formed on the circumferential wall of the through hole, which forms a part of the circumferential wall of the hole and protrudes so as to be movable in the axial direction within the through hole. a female engaging body provided with a portion, and a male threaded portion having a diameter that allows loose insertion into the through hole, and a male threaded portion screwed into the female threaded portion of the female engaging body, carved in the peripheral wall, in the length direction of the male threaded portion, a male engaging body provided with a long groove having a width and depth that does not engage with the female threaded portion;
At the time of disengagement, the tip of the male engaging body is screwed into the female threaded part with a male threaded part provided around the entire circumference to temporarily prevent it from coming off. This clamping device is an extrusion molding device that can be easily and quickly carried out, and has the unique effect of greatly increasing the efficiency of the work of attaching and detaching objects to be clamped in molds, etc. When used as a member for suspending objects to be held such as timber or plate materials, as described above, the male engaging body having a male threaded portion and a long groove provided in the male threaded portion must be screwed into the female engaging body, and the Since the loosening can be performed extremely easily, when a large number of objects to be held are to be surface treated at once, the work of attaching and detaching them to the hanging member can be done in a short time, and the work can be carried out efficiently.

Furthermore, the present invention provides a male threaded part around the entire circumference at the tip of the male engaging body to temporarily prevent it from coming off, and when it is not engaged, the male threaded part screws into the female threaded part to instantly prevent it from coming off. Because of this, there is no danger of the object being clamped coming off or falling due to this coming off, and there is no need for any other type of catch, which provides a unique effect.

In addition, in the present invention, if the male engaging body is made to be freely engageable and detachable with a fixed interval between the female engaging body and the fastening surface of the object to be held, the object to be held can be directly connected to the fastening surface and the female engaging body. Since the object to be held can be held by the male engaging body which is inserted between the two and inserted loosely into the through hole of the female engaging body, there is no need to process the object to be held such as through holes for clamping. Moreover, it has the practical effect of being able to clamp objects with various wall thicknesses without any problems, and furthermore, the male engaging body protrudes from the fastening surface and the female engaging body can be engaged and detached. If it is freely inserted, the object to be held is passed through the male engaging body and the male engaging body that protrudes from the object to be held is screwed together, so the rotation distance required for screwing the loosely inserted female engaging body is shortened. The present invention has the practical effect of making it possible to easily and easily clamp an object, and also eliminating any adverse effects such as displacement or detachment of the object during clamping.

It should be noted that the detachable clamping device equipped with a screw mechanism according to the present invention can of course be used not only for the above embodiments but also for clamping structural materials of buildings and general articles. Its effects are also exhibited in the same manner as described above.

[Brief explanation of the drawing]

The drawings show an embodiment of a removable clamping device equipped with a screw mechanism according to the present invention, and FIG. 1 is a side view, FIG. FIGS. 4 and 5 are vertical sectional front views showing the state of use of other embodiments, FIGS. 6 and 7 are partially cutaway partially sectional plan views, and FIG. 8 is a partially cutaway cross-sectional plan view. FIG. 9 is a perspective view of the embodiment, FIG. 9 is an enlarged longitudinal sectional front view of the main part, FIG. 10 is a partially longitudinal front view showing another embodiment in use, and FIG. be. In the figure, 1 is a female engaging body, 2 is a through hole, 3 is a hole circumferential wall, 4 is a female screw part, 6 is an object to be held, 7 is a fastening surface,
8 is a male engaging body, 9 is a male threaded portion, 10 is a long groove, 14
is a subject matter.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A female screw 4 is provided on the hole circumferential wall 3 of the through hole 2, which forms a part of the hole circumferential wall 3 and protrudes freely in the radial direction of the axis of the through hole 2. The female engaging body 1 has a diameter that allows the female engaging body 1 to be loosely inserted into the through hole 2, and a male threaded portion 9 is carved in the peripheral wall to be screwed into the female threaded portion 4 of the female engaging body 1, and the length of the male threaded portion 9 is a long groove 10 having a width and depth that does not engage with the female threaded portion 4 in the direction;
A male engaging body 8 is provided with a male engaging body 8, and a male engaging body 8 is provided with a male engaging body 8 which is engaged with the female threaded portion 4 at the tip and rear sides of the long groove 10 in the male engaging body 8. A detachable clamping device equipped with a screw mechanism characterized by having a threaded portion. (2) A removable clamping device equipped with a screw mechanism according to claim 1, in which the male engaging body 8 is provided protruding from the fastening surface 7 and the female engaging body 1 is freely engageable and detachable.