JP2003159659A - Vice grip plier type pinching jig - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vice grip plier type pinching jig capable of corresponding to the thickness of a work and materializing easy use. <P>SOLUTION: A vice grip plier type pinching jig 10 is provided with an approximately L-shaped extending member 16 on the upper gripping part 12. In the vice grip plier type pinching jig 10, a boss 17 is mounted on the extending member 16. A shaft 21 is passed through a through hole 18 of the boss 17. The large diameter part 22 is mounted on an upper holding piece 25. The upper holding piece 25 is connected to the tip 13 of the upper gripping part 12 through a couple of links 29, 29. A valve spring 23 is provided between the upper holding piece 25 and the boss 17. When the upper and lower gripping parts 12, 36 are closed, the shaft 21 of the exhaust or intake valve 20 is maintained so as to be freely movable with respect to the through hole 18. The work is pinched by the biasing force of the valve spring 23. By so doing, the shaft 21 is abutted onto the through hole 18 when the upper and lower gripping parts 12, 36 are opened. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of forming a hull, for example, in order to bring a deck constituting an upper half into close contact with a hull constituting a lower half. The present invention relates to a vice pliers type holding jig used to hold a portion where a hull and a deck are overlapped. 2. Description of the Related Art As a small boat, a jet pump is mounted on the rear part of a hull, and the jet pump is driven by an engine to suck water from the bottom of the boat and jet the sucked water backward to propell. Small planing boats are known. In this personal watercraft, the lower half of the hull is composed of a hull, the upper half of the hull is composed of a deck, and after applying adhesive to the periphery of the hull,
The hull is constructed by stacking the deck on the hull and bonding the periphery of the deck to the hull. [0003] When a deck is placed on a hull and the periphery of the deck is bonded to the periphery of the hull, in order to make the periphery of the deck adhere closely to the periphery of the hull, the periphery of the deck is attached to the periphery of the hull until the adhesive hardens. The periphery must be pressed. As a jig for this pressing, a vice-plier-type holding jig is known, and as an example of the vice-plier-type holding jig, there is Japanese Utility Model Laid-Open Publication No. 64-26158, “Automatic Vise”. Hereinafter, FIG. 1 shown in this gazette is reproduced in the following figure (however,
The reference numeral is re-arranged), and the vice pliers type holding jig will be described in detail. FIG. 7 is a perspective view of a conventional vice pliers type clamping jig. When a portion where the periphery of the hull and the periphery of the deck are overlapped by the vice-plier-type holding jig 100, this overlapped portion is used as the vice-plier-type holding jig 1.
00 and a presser foot 102, and in this state, a pair of handgrips 103, 103 of the vise-plier-type holding jig 100 are squeezed to thereby receive the vise-plier-type holding jig 100. The superposed portion is sandwiched between 101 and the presser foot 102. [0005] According to this vice-plier-type holding jig 100, the boss 10 is attached to the tip 103 a of the upper handshake body 103.
The I-shaped pin 105 is inserted through the boss 104, and springs 106 and 107 are provided on the upper end and the lower end of the pin 105, respectively. As described above, the springs 10 are provided on the upper end side and the lower end side of the pin 105, respectively.
The provision of the springs 6 and 107 makes it possible for the springs 106 and 107 to absorb changes in the thickness of the overlapped portion. [0006] However, the vice pliers-type holding jig 100 has a spring 107 at the lower end of the pin 105 and also has a spring 106 at the upper end of the pin 105. The upper end protrudes greatly. For this reason, the vice pliers type holding jig 100 becomes relatively large, and is inconvenient to use. In particular, when the vice-plier-type holding jig 100 is used in a relatively narrow space, the upper end of the pin 105 may interfere with surrounding members, which is not preferable. Accordingly, an object of the present invention is to provide a vice-plier type holding jig which can hold a work even when the thickness of the work changes and which is more convenient to use. [0008] In order to achieve the above object, a first aspect of the present invention is to close a pair of grips by closing a pair of grips, thereby clamping a work by closing a pair of grips. A vice-plier-type holding jig for opening a pair of gripping pieces to open a pair of gripping pieces to open a workpiece, wherein a substantially L-shaped extending member is provided at one end of the pair of gripping parts. And a boss is attached to the tip of the extension member, the tip of the shaft inserted through the through hole of the boss is attached to one gripping piece, and this one gripping piece is attached to the tip of one gripping portion via a link. By connecting and providing a compression spring between one gripping piece and the boss, the shaft is movably held in the through hole when the pair of grips are closed, and the work is held by the biasing force of the compression spring. When the pair of grips are opened, the shaft is inserted into the through hole. It is characterized by contacting. A compression spring is provided between one of the gripping pieces and the boss, so that the shaft is movably held in the through hole when the pair of grips are closed. Thus, by closing the pair of grips, the work can be gripped by the urging force of the compression spring. Further, since only one compression spring needs to be provided on the shaft, two springs are not required unlike the prior art. As a result, the vice-plier-type holding jig can be relatively compacted as compared with the conventional technique, and the usability of the vice-plier-type holding jig can be improved. Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is a perspective view of a vice-plier-type holding jig according to the present invention. Vise pliers type clamping jig 10
The upper and lower grips (a pair of grips) 25 and 40 are closed by closing the upper and lower grips (a pair of grips) 12 and 36 of the vice plier main body 11 to clamp the work, and the upper and lower grips 12 are closed. , 36 by opening the upper and lower gripping pieces 25, 4
0 is opened to release the clamping of the work. Further, this vice-plier type holding jig 1
0, a substantially L-shaped extending member 16 is attached to the distal end 13 of the upper grip portion 12, a boss 17 is attached to the distal end 16a of the extending member 16, and an exhaust or intake valve (shaft) is inserted into a through hole 18 of the boss 17. 20), the large diameter portion (shaft tip) 22 of the exhaust or intake valve 20 is attached to the upper gripping piece 25, and the upper gripping piece 25 is connected to a pair of links 29,
A valve spring (compression spring) is connected between the upper gripping piece 25 and the boss 17 through the upper grip portion 12 through the upper grip portion 12 via the upper end portion 29.
When the upper and lower grip portions 12 and 36 are closed, the shaft portion 21 of the exhaust or intake valve 20 is movably held with respect to the through hole 18 by providing the valve spring 2.
The work is held by the urging force of No. 3 and the shaft portion 21 is brought into contact with the through hole 18 when the upper and lower grip portions 12 and 36 are opened. The vice pliers main body 11 has an adjusting bolt 30 attached to the rear end 14 of the upper grip portion 12, and is attached to the tip 13 of the upper grip portion 12 via a support pin 31 so as to be swingable on a swing member 32. A lower grip 36 is swingably attached to the swing member 32 via a connecting pin 33, and one end of a link 35 is swingably mounted via a pin 34 behind the connecting pin 33 of the lower grip 36 and a link 35. Is in contact with the distal end 30a of the adjusting bolt 30, and the pin 38 of the lower grip portion 36 is located behind the pin 34 to release the locking lever 38 via the pin 37.
Are mounted so as to be swingable, a spring 39 is locked in a locking piece 12a of the upper grip 12 and a locking hole 32a of the swing member 32, and a lower gripping piece 40 is mounted on the swing member 32. An exhaust or intake valve (hereinafter, referred to as a “valve”) 20 is a diversion of an exhaust or intake valve of an automobile or a motorcycle, for example, and the outer diameter D of a shaft portion 21 of the valve 20 is It was set smaller than the inner diameter d of the through hole 18. Thereby, the gap between the inner diameter d of the through hole 18 and the outer diameter D of the shaft portion 21 was set relatively large. Therefore, by attaching the upper gripping piece 25 to the large diameter portion 22 of the valve 20, the upper gripping piece 25 is attached to the lower gripping piece 40.
Can freely move forward and backward. For this reason, even when the thickness of the work held by the vice-plier type holding jig 10 changes, the upper holding piece 25 can be pressed against the work by the urging force of the valve spring 23, so that the upper and lower holding pieces 25 can be pressed. , 40 can reliably hold the work. The valve spring 23 is a member obtained by diverting a spring of an automobile or a motorcycle.
By biasing the upper gripping piece 25 toward the lower gripping piece 40, the member is biased toward the lower gripping piece 40. The upper gripping piece 25 includes a pair of brackets 27,
An approximately L-shaped member is formed by a horizontal portion 26a having the front end 27a attached to the rear end 25a and a vertical portion 26b provided at the front end of the horizontal portion 26a, and an opening 26c is formed from the vertical portion 26b to the horizontal portion 26a. Then, the distal ends 26d, 26d of the vertical portions 26a are configured to contact the distal ends 40a, 40a of the lower gripping piece 40. The lower gripping piece 40 has an opening 41 formed in the center and the rear end is attached to the swing member 32 so as to be arranged substantially parallel to the horizontal portion 26a of the upper gripping piece 25 and to be orthogonal to the vertical portion 26b. It is the member which did. According to the vice pliers type holding jig 10,
By gripping the upper and lower grip portions 12 and 36 and closing them in the state of FIG. 1, the valve spring 23 and the links 29 and 29 are closed.
, The upper and lower gripping pieces (a pair of gripping pieces) 25 and 40 can be closed. In this state, the valve spring 23
By extruding the upper gripping piece 25 with, the work can be pressed and clamped by the lower gripping piece. On the other hand, according to the vice pliers type holding jig 10, the upper and lower gripping pieces 25, 40 can be opened by opening the upper and lower grip portions 12, 36. Thereby, the holding of the work by the upper and lower gripping pieces 25 and 40 can be released. FIG. 2 is a modification diagram of the vice pliers type clamping jig according to the present invention. An ordinary vice plier (vice plier) 45 which is generally used is attached to a tip mounting portion 46 (a portion shown by a hatched broken line) of the upper grip portion 12.
5 is attached. Vise pliers type clamping jig 1
0 is manufactured using a normal vise pliers 45. When manufacturing the vice-plier-type holding jig 10, this normal vice-plier 45 is prepared, the tip mounting portion 46 of the upper grip 12 is removed from the vise-plier 45, and the upper grip 12 is moved upward. The gripping piece 25 is separated, the substantially L-shaped extending member 16 is attached to the distal end 13 of the upper gripping part 12 from which the distal end mounting part 46 is separated, and a pair of rear grippers 25 is separated from the distal mounting part 46 to the rear end 25a. The brackets 27, 27 are attached, the tips of the pair of links 29, 29 are swingably attached to the pair of brackets 27, 27 via pins 28a, and the pair of links are attached to the tip 13 of the upper grip portion 12 via pins 28b. The other ends of 29 and 29 are swingably mounted. This allows
The vice-plier type holding jig 10 shown in FIG. 1 is obtained. In the present embodiment, an example has been described in which the vice-plier-type holding jig 10 is manufactured by using the ordinary vice pliers 45. However, the vice-plier-type holding jig 10 is not limited to this. It is also possible to manufacture the vice-plier-type holding jig 10 by newly manufacturing the above member and assembling the manufactured new member. FIGS. 3 (a) and 3 (b) are side views showing a state in which a work is held by a vice pliers type holding jig according to the present invention. 3A, the upper and lower gripping pieces 25 and 40 are closed by gripping and closing the upper and lower gripping portions 12 and 36 of the vice plier-type holding jig 10, and the upper and lower gripping pieces 25 and 40 are used to close the work (the boat body 50). (Peripheral edge) 50a is shown. 2B, the outer diameter D of the shaft portion 21 of the valve 20 is set smaller than the inner diameter d of the through hole 18 of the boss 17, and the inner diameter d of the through hole 18 and the outer diameter D of the shaft portion 21 are set.
The gap between the valve 20 and the
Shows a state in which the shaft portion 21 is not touching the through hole 18 of the boss 17. As described above, the shaft portion 21 of the valve 20 can be kept out of contact with the through hole 18 of the boss 17 when the workpiece 50a is held between the upper and lower gripping pieces 25 and 40. 25 can be pushed out by the valve spring 23. Therefore, the upper gripping piece 25 can be pressed against the work 50a by the urging force F of the valve spring 23. For this reason, even when the thickness of the work 50a changes, the upper gripping piece 25 is adjusted in accordance with the change in the thickness.
Can be pressed against the work, and the upper and lower gripping pieces 25, 4
At 0, the work can be reliably clamped. FIGS. 4 (a) and 4 (b) are side views showing a state in which the vice-plier type holding jig according to the present invention is opened.
(A) shows a state in which the upper and lower gripping pieces 25 and 40 are opened by opening the upper and lower grips 12 and 36 of the vice pliers type holding jig 10. (B) shows a state in which the shaft portion 21 of the valve 20 is in contact with the through hole 18 of the boss 17. As described above, when the upper and lower gripping pieces 25 and 40 are opened, the urging force of the valve spring 23 acts on the large-diameter portion 22 so that the valve is applied to the upper gripping portion 25 via the large-diameter portion 22. The urging force of the spring 23 acts. Here, by connecting the upper grip 25 to the distal end 13 of the upper grip 12 via the links 29, 29, the upper grip 25 can be lowered while moving in parallel as shown in FIG. As a result, as shown in FIG.
The shaft portion 21 of the valve 20 is brought into contact with the peripheral surface of the through hole 18 of the boss 17 to prevent the shaft portion 21 of the valve 20 from coming out of the through hole 18 of the boss 17. As described above, the shaft portion 21 is connected to the through hole 18.
The shaft portion 21 is brought into contact with the peripheral surface of the
Therefore, it is not necessary to provide a spring on the upper end side of the valve unlike the related art. For this reason, since the protrusion amount L of the shaft portion 21 can be kept small as compared with the conventional technology, the vice pliers type holding jig can be relatively compactly assembled. Therefore, the usability of the vice pliers type holding jig 10 can be improved. Next, an example of use of the vice pliers type holding jig 10 will be described with reference to FIGS. FIG. 5 is an explanatory view showing an example of use of the vice pliers type holding jig according to the present invention. Peripheral edge 51 of hull 51 constituting lower half of hull 50
a, and after applying the adhesive 53 to the pair of straight portions 52, 52 in the hull 51, the deck 54 constituting the upper half of the hull 50 is put on the hull 51 as shown by the arrow. Thereby, the periphery of the hull 51 (that is, the portion where the adhesive 53 is applied)
The peripheral edge 54a of the deck 54 can be put on the 51a. FIGS. 6 (a) and 6 (b) are explanatory views showing an example of use of the vice pliers type clamping jig according to the present invention.
(B) is a sectional view taken along line bb of (a). In (a), the hull 51 is covered with a deck 54 so that
After superimposing the peripheral edge 54a of the deck 54 on 1a (shown in FIG. 5), the vice pliers type holding jig 10 is set at a fixed interval in each overlapped portion (that is, the peripheral edge 50a of the boat body 50). . Reference numeral 60 denotes a bogie for transporting the hull 50 to a subsequent process. (B) is a vise pliers type holding jig 10
Shows a state in which the periphery 50a of the hull 50 is sandwiched. Here, since the peripheral edge 50a of the hull 50 is provided with a vertical piece whose edge is lowered vertically, in order to eliminate the interference between this vertical piece and the vice-plier-type holding jig 10, a vice-plier-type holding jig is used. 10 is used upside down. More specifically, a vice pliers type holding jig 1
The upper and lower grip portions 1 and 2 are gripped by holding the upper and lower grip portions 12 and 36 of the vice pliers type holding jig 10 upside down.
2 and 36 are closed, and the upper and lower gripping pieces 25 and 40 are closed. As a result, the upper and lower gripping pieces 25 and 40 are
0a can be pinched. Here, since the vice pliers type holding jig 10 can be configured to have only one valve spring in the valve, there is no need to provide a spring on the upper end side of the valve as in the prior art. For this reason, since the protrusion amount L of the shaft portion 21 can be kept small as compared with the conventional technology, the vice pliers type holding jig can be relatively compactly assembled. Therefore, the usability of the vise pliers type holding jig 10 can be improved. In particular, since the vice pliers type holding jig 10 is used in a relatively narrow space, the usability can be significantly improved. As described above, by sandwiching the peripheral edge 54a of the deck 54 on the peripheral edge 51a of the hull 51, the adhesive 53 can be dried while the peripheral edge 54a of the deck 54 is in close contact with the peripheral edge 51a of the hull 51. . By the way, for example, hot air may be blown on the adhesive 53 in order to dry the adhesive 53.
When hot air is blown on the adhesive 53, the adhesive 53 may be softened and thinned. In this case, the periphery 5 of the hull 50
Since the thickness of Oa becomes thin, the peripheral edge 51a cannot be pinched by a normal vise plier. On the other hand, since the biasing jig 10 of the vice pliers is configured to clamp the periphery 50a of the hull 50 by the urging force F of the valve spring 23, the thickness of the periphery 50a of the hull 50 is small. In this case, the peripheral edge 51a can be reliably held. Therefore, the adhesive 53 can be dried while the peripheral edge 50 a of the deck 54 is in close contact with the peripheral edge 51 a of the hull 51 by clamping the peripheral edge 50 a of the boat body 50 with the vice pliers-type holding jig 10. In the above-described embodiment, the work held by the vice pliers-type holding jig 10 is provided on the periphery 50 of the boat body 50.
Although the example described as “a” has been described, the vice pliers type holding jig 10 can be used for holding other works. In the above-described embodiment, an example in which an exhaust or intake valve or a valve spring used for an automobile engine is used as an example of a member constituting the vice pliers type holding jig 10 is not limited to this. Thus, it is also possible to newly manufacture a member corresponding to an exhaust or intake valve or a valve spring. According to the present invention, the following effects can be obtained by the above-described structure. According to the first aspect, the work can be gripped by the urging force of the compression spring by keeping the shaft movable with respect to the through hole when the pair of grip portions are closed. Therefore, even when the thickness of the work changes, the upper gripping piece can be pressed against the work by the urging force of the compression spring. Further, since only one compression spring needs to be provided on the shaft, two springs are not required unlike the prior art. As a result, the vice pliers-type clamping jig can be relatively compacted as compared with the prior art,
The usability of the vise pliers type holding jig can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vice-plier-type holding jig according to the present invention. FIG. 2 is a diagram of a modification of the vice-plier-type holding jig according to the present invention. FIG. 4 is a side view showing a state in which a work is held by a vice-plier-type holding jig; FIG. 4 is a side view showing a state in which a vice-plier-type holding jig according to the present invention is opened; FIG. FIG. 6 is an explanatory view showing an example of use of a jig. FIG. 6 is an explanatory view showing an example of use of a vice-plier-type holding jig according to the present invention. FIG. 7 is a perspective view of a conventional vice-plier-type holding jig. DESCRIPTION OF SYMBOLS 10 ... Vise pliers type clamping jig, 11 ... Vise pliers main body, 12 ... Upper grip part, 20 ... Exhaust or intake valve (shaft), 23 ... Valve spring (compression spring), 25
... upper gripping piece, 29 ... link, 36 ... lower gripping part, 39 ... spring, 40 ... lower gripping part, 45 ... normal vise pliers (vice pliers), 50a ... rim of hull (work).

Claims (1)

Claims: 1. A pair of grips are closed by closing a pair of grips, a pair of grips connected to each grip are closed to clamp a work, and a pair of grips are opened to open a pair of grips. A vice-plier-type holding jig that opens to release the holding of a workpiece, wherein a substantially L-shaped extending member is attached to one end of the pair of grip portions, and a boss is attached to the end of the extending member. The tip of the shaft inserted into the through hole of this boss is attached to one gripping piece, and this one gripping piece is connected to the tip of one gripping part via a link, and between the one gripping piece and the boss A compression spring keeps the shaft movable relative to the through-hole when the pair of grips are closed, clamps the work with the biasing force of the compression spring, and penetrates the shaft when the pair of grips is opened Vise pliers characterized in contact with holes Clamping jig.