JPH0750567Y2 - Fastening means for a pair of fastened products - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention provides a pair of fastened molds (mold frames), a pressure vessel and a lid, and a pair of fastened parts that receive a considerably large separating force. It relates to means for fastening.

[Conventional technology]

As a fastening means for a pair of upper and lower molds, there is a pair of clamp plates with bolt holes or bolt grooves protruding from the side of parts to be fastened such as a pair of molds, and clamp bolts and nuts for tightening the pair of clamp plates. Is commonly used.

[Problems to be solved by the device]

The conventional fastening means as described above has problems that the screw fastening and the screw fastening releasing operation by the clamp bolts and nuts takes a relatively long time, the fastening force is likely to be excessive, and the clamp plate and the clamp bolt are damaged quickly. Have

Then, this invention makes it a subject to provide the fastening means which is easy to fasten and fasten the fastening, and is hard to make fastening force excessive.

[Means for Solving the Problems]

According to this invention, the above-mentioned problem consists of a pair of fastening pins projecting from the side portions of a pair of articles to be fastened and a chevron-shaped clamp extending through a bent portion. , A hook having a small diameter that can be hooked on one of the fastening pins, and the portion extending from the other end toward the bent portion is substantially centered on the hook and the inner diameter between the hook and the bent portion is directed toward the bent portion. This is solved by a fastening means that is a large-diameter arc-shaped portion that can be pressed against the other fastening pin and that gradually decreases with a value corresponding to the distance between the outer sides of the pair of fastening pins interposed therebetween.

[Action]

According to the fastening means of the present invention, a hook at one end of a mountain-shaped clamp is hooked from the outside to one fastening pin protruding from a side portion of one fastened product, and the other end of the clamp is fastened to the other fastened product. Guided to the outer side of the other fastening pin projecting from the side of, the pair of fastening pins are temporarily sandwiched between the hook at one end of the clamp and the vicinity of the other end, and then at the bent side on the hook side. Hit the outer surface of the adjacent part with a hammer. As a result, the contact position of the arcuate portion of the clamp with respect to the other fastening pin moves toward the bent portion side, and pressure contact is made at the intermediate portion where the inner diameter between the clamp and the hook shifts to less than the distance value outside the pair of fastening pins. Then, the movement to the bent portion side is stopped.
As a result, the pair of fastening pins are sandwiched between the hook at the one end of the clamp and the intermediate portion of the arcuate portion, so that both articles to be fastened are firmly fastened.

Both fasteners fastened in this way hit the other end surface of the clamp with a hammer etc. toward the extending direction of the arc-shaped portion,
The fastening is released by releasing the pressure contact between the intermediate portion of the arcuate portion and the outer portion of the fastening pin.

〔Example〕

The drawing illustrates a fastening means of a pair of upper and lower molds as a typical example of the fastening means of the present invention, and fastening pins 12a, 12b.
Is a substantially rigid material (eg cast iron),
The side walls of 10a and the lower mold 12b are integrally formed by protruding molding. The chevron-shaped clamp 20 is also made of a substantially rigid material (such as cast iron), and has a bent portion 22 and a small diameter hook 26 from one end to the bent portion 22.
And a straight pin 24 extending toward the bent portion 22 from the other end to the fastening pin pair 12 whose inner diameter with respect to the hook 26 is upper and lower.
It is provided with a large-diameter arc-shaped portion 28 that extends so as to gradually decrease across a value corresponding to the distance between the outer sides of a and 12b, and a hammer striking portion 24a is provided outside the bent portion 22 of the straight portion 24. It is provided.

After the upper mold 10a and the lower mold 10b are superposed in a predetermined manner, the fastening pin 12a of the upper mold 10a is hooked with the hook 26 at one end of the clamp 20.
While holding the other end of the clamp 20 to the lower side (outer side) of the fastening pin 12b of the lower mold 10b facing the other side, hit the hammer striking part 24as of the clamp 20 with a hammer or the like,
The lower part of the fastening pin 12b of the lower mold 10b is brought into pressure contact with the inner part of the middle part of the arcuate part 28 so as not to move further toward the bent part, thereby fastening.

The upper and lower molds 10a and 10b fastened in this manner are
Fastening the other end surface of the clamp 20 in the extending direction of the arcuate portion 28 to release the pressure contact between the fastening pin 12b of the lower mold 10b and the intermediate portion of the arcuate portion 28, thereby releasing the fastening.

[Effect of device]

According to the fastening means of the present invention, it is possible to fasten and unfasten the article to be fastened by a very simple operation of hammering the clamp substantially, and at the same time, from the other end of the clamp to the bent portion. The inner diameter of the arcuate portion toward the hook becomes smaller than the space between the outer sides of the fastening pin pair in the middle portion, and the pressure contact portion with the fastening pin does not substantially exceed the changing portion of this diameter, so the fastening force becomes excessive. There is no fear of becoming.

[Brief description of drawings]

The drawings exemplify the fastening means for a pair of molds as an embodiment of the present invention. FIG. 1 is a front view and FIG. 2 is a right side view. 10a …… upper mold, 10b …… lower mold, 12a, 12b …… fastening pin, 20 …… clamp, 22 …… bend, 26 …… hook, 28
...... Arc part.

Claims (1)

[Scope of utility model registration request] 1. A pair of fastening pins projecting from side portions of a pair of articles to be fastened, and a mountain-shaped clamp extending through a bent portion, wherein the clamp has one fastening pin at one end. The part that has a small diameter hook that can be hung on the hook and that extends from the other end toward the bent portion extends substantially around the hook and has an inner diameter between the hook and the pair of fastening pins toward the bent portion. Fastening means for a pair of fastened products, which are large-diameter arc-shaped portions that can be pressed into contact with the other fastening pin, and gradually decrease with a value corresponding to the distance between the outer sides of the fastening pin.