JP2000296473A - Pliers having pinch faces moving in parallel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enlarge the interval between pinch faces moving in parallel to each other and to set the pinch faces of appropriate shapes exchangeable with each other by loosely fitting one pinch face member holding piece to a guide bar projectingly fixed to the other pinch face member holding piece and by inserting and fixing the projecting piece of the pinch face member in a fixing hole of the pinch face member holding piece. SOLUTION: Pinch parts and holding levers 6 are provided on the top/bottom extensions of an X-shaped part 1 via the X-shaped part 1 having a crossing part journalled thereto, the pinch parts of the pinch arms 2 are arranged in the opposite position, and a C-shaped stop ring 7 is provided in a guide bar 4 composed of a round bar of a pinch face member holding piece 3. A part adjacent to the tip end of the pinch arm 2 is rotatably attached to a shaft fixed to the central part of the pinch face member holding piece 3. A part of a columnar projecting piece is set to a notch plane so as to be a fixing bolt 10 patch and inserted into a lateral fixing hole 9 adjacent to the top of the pinch face member holding piece 3, and a fixing bolt 10 is fastened thereto from the top so that the pinch face member 5 is fixed to the pinch face member holding piece 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plier (handheld tool) having a parallel-moving clamping surface.

[0002]

2. Description of the Related Art Conventionally, there is a so-called parallel plier in which a holding surface moves in parallel, but there is a limitation that a gap between the holding surfaces is a maximum of 12 mm, which is insufficient for use in glasswork or the like. Although there is a stop ring plier, there is a limitation that the interval between the holding surfaces is about 25 mm at the maximum, and the use range is similarly limited. Further, since the holding surfaces are fixed by welding or the like, it is necessary to prepare various pliers according to the type of the holding surface, which is complicated.

[0003]

SUMMARY OF THE INVENTION According to the present invention, there is provided a plier having a clamping surface which can be moved in parallel, in which the distance between the clamping surfaces can be made longer than before and a interchangeable clamping surface of any shape can be provided. Is what you do.

[0004]

Here, the inventor of the present invention has provided a holding portion which is vertically extended through an X-shaped portion whose crossing portion is pivotally mounted (meaning that it is rotatably mounted by a shaft). In a plier comprising a grip lever, a holding portion includes a holding arm at a facing position, a holding surface member holding piece and its guide bar, and a pair of holding surface members,
At least one of the vicinity of the tip of the holding arm and the central portion of the holding member holding piece is axially attached, and a guide bar is fixed to the inner lower end of one of the holding member holding pieces at right angles to the inner surface. A stop ring is attached to the other end, the lower end of the other holding surface member holding piece is loosely fitted to the guide bar, and the projecting piece at the center of the back of the holding surface member is located near the top of the holding surface member holding piece. We have found a plier with a parallel-moving clamping surface that is inserted and fixed in a horizontal fixing hole.

Here, planes, L-shaped cross sections and flat planes, L-shaped cross sections, and the like can be arbitrarily selected and used as the holding surfaces of the pair of holding surface members.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A plier having a parallel-moving clamping surface according to the present invention comprises a clamping portion and a lever extending vertically above and below an X-shaped portion on which a crossing portion is axially mounted. The holding portion includes a holding arm, a holding surface member holding piece, a guide bar thereof, and a pair of holding surface members at opposing positions.

In the holding portion, at least one of the vicinity of the tip of the holding arm and the central portion of the holding member holding piece is axially mounted, and the lower end inside one of the holding member holding pieces is perpendicular to the inner surface. A guide bar is protruded and fixed, and a stop ring is attached to the other end to prevent the holding member holding piece from dropping off. A lower end of the other holding member holding piece is loosely fitted to the guide bar, and the holding member has a lower end. An insert in which a protruding piece at the center of the back is inserted into a fixing hole in the horizontal direction near the top of the holding member for holding the holding member is fixed by bolting or the like. The guide bar is usually preferably a round bar.

The present invention is characterized in that the holding surfaces of a pair of detachable holding surface members can be translated in a wide range. Therefore, by appropriately selecting the shape and spacing of the sandwiching surface of the pliers, a glass body portion of an arbitrary shape can be formed, or used for cutting a glass plate with a wide sandwiching surface,
It can also be used for various sheet metal work.

In the case of glasswork, planes, L-shaped cross-sections and planes, L-shaped cross-sections, and the like can be arbitrarily selected and used as the holding surfaces of a pair of holding surface members. When the pair of sandwiching surface members have an L-shaped cross section and a plane, the glass body portion sandwiched by selecting the L-shaped cross section can form an isosceles triangle or a right triangle in cross section. Also, the cross section L
In the case of letter shapes, a glass body portion having an L-shaped cross section is obtained. In addition, a combination of a plane and a combination of curved surfaces of any shape, or a combination of a plane and a curved surface can be freely used as a holding surface, and glass bodies of various shapes can be easily obtained. The range expands.

[0010]

The present invention will be described more specifically with reference to the following examples. (Part 1) In the case where the sandwiching surfaces are flat surfaces As shown in FIG. 1 (perspective view), FIG. 2 (front view), FIG. 3 (plan view), and FIG. A gripping arm and a gripping surface member holding piece, comprising a gripping portion and a grip lever 6 extending vertically above and below an X-shaped portion 1 on which the shaft is mounted. 3 and a guide bar 4 composed of an 8 mmφ round bar with a C-shaped stop ring 7, and a pair of clamping surface members 5.
And A shaft is fixed to the center of the holding member 3 and the vicinity of the tip of the holding arm 2 is rotatably mounted on the shaft.

Here, the pair of holding surface members 5 are 60 m
An iron flat plate of mx 60 mm x 5 mm is used. This is appropriate because it contacts the glass at high temperatures. A protruding piece 8 is provided at the center of the rear surface, and a part of the cylindrical protruding piece 8 is formed as a cutout plane to be used as a fixing bolt 10, and this is used as a horizontal fixing hole near the top of the holding member 3. The holding surface member 5 is fixed to the holding member 3 by tightening the fixing bolt 10 from above.

In this case, the interval between the holding surfaces of the pair of holding surface members 5 can be up to 50 mm, so that a flat plate portion of the glass body can be obtained with a wide range of thickness. It is easy to design to further increase the spacing between the holding surfaces as needed. Note that these members are all made of iron, but plating is preferable in appearance, and the metal material is not limited to this.

(Part 2) In the case where a glass body portion having an isosceles triangular cross section is obtained by joining the holding surface with an L-shaped cross section and a flat surface, a plier for glasswork having the same main body as the previous example is shown in FIG. 5 (front view). As shown, the inside two sides are 19 mm and 39 mm with an included angle of 74 degrees on one side as a pair of sandwiching surface members 5,
Using an iron L-shaped plate having a width of 60 mm and a thickness of 5 mm,
On the other hand, one of the sandwiching surface members 5 made of a flat plate in the previous example is used. Thus, the pair of sandwiching surface members 5 are joined to obtain a glass body portion having an isosceles triangular cross section. However, the glass body portion can be formed at an intermediate position without joining.

(Part 3) When the sandwiching surface has an L-shaped cross section and a flat surface, and a glass body portion having a right-angled isosceles triangle is obtained by joining, a glass-working plier having the same main body as the previous example is shown in FIG. 6 (plan view). As shown in the figure, the inner two sides are 24 mm each and the width is 60 m at a included angle of 90 degrees on one side as a pair of holding surface members 5.
An L-shaped plate made of iron having a thickness of 5 mm and a thickness of 5 mm is used. The method of use is the same as in the previous example.

(Part 4) A case where a glass body portion having an L-shaped cross section can be obtained by joining the holding surfaces with an L-shaped cross section, as shown in FIG. 7 (plan view) as a glassworking plier having the same main body as the previous example. And a pair of sandwiching surface members 5, the L-shaped plate-like body of the previous example, two sides of 26 mm each having an included angle of 90 ° facing the inside, a width of 60 mm, and a thickness of 5
mm L-shaped plate is used. When the pair of sandwiching surface members 5 approach each other, an L-shaped glass body portion having an arbitrary thickness is obtained.

[0016]

As a plier having a parallel-moving clamping surface, the spacing between the clamping surfaces can be made larger than before, and the clamping surface of any shape can be interchanged, so that glass processing and sheet metal work can be performed. Can be easier.

[Brief description of the drawings]

FIG. 1 is a perspective view of a glass-working pliers in a case where a holding surface is flat.

FIG. 2 is a front view of the glassworking pliers in a case where the sandwiching surfaces are flat.

FIG. 3 is a plan view of the glassworking pliers when the holding surfaces are flat.

FIG. 4 is a side view of the glassworking pliers in a case where the holding surfaces are flat surfaces.

FIG. 5 is a front view of a plier in which a glass body portion having an isosceles triangular cross section is obtained when the holding surface is an L-shaped cross section and a flat surface.

FIG. 6 is a plan view of a plier from which a glass body portion having a right-angled isosceles triangle can be obtained when the holding surface is an L-shaped cross section and a flat surface.

FIG. 7 is a plan view of a plier in which a glass body portion having an L-shaped cross section is obtained when the holding surfaces have L-shaped cross sections.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 X-shaped part 2 Nipping arm 3 Nipping surface member holding piece 4 Guide bar 5 Nipping surface member 6 Grip lever 7 C type stop ring 8 Projection piece 9 Fixing hole 10 Fixing bolt

Claims (2)

[Claims] 1. A pliers consisting of a gripping portion and a grip lever extending vertically above and below an X-shaped portion on which a crossing portion is axially attached, wherein the gripping portion is located at an opposing position.
And at least one of the vicinity of the tip of the clamping arm and the central portion of the clamping surface member holding piece is axially mounted, and one of the clamping arm members and the guide bar thereof, and a pair of clamping surface members. A guide bar protrudes from the inner lower end of the holding surface member holding piece at right angles to the inner surface, and a stop ring is attached to the other end. The lower end of the other holding surface member holding piece is loosely fitted to the guide bar. A plier having a parallel-moving clamping surface, wherein a projecting piece at the center of the rear surface of the clamping surface member is inserted and fixed in a horizontal fixing hole near the top of the clamping surface member holding piece. 2. The method according to claim 2, wherein the holding surfaces of the pair of holding surface members are flat.
2. The pliers having a parallel-moving clamping surface according to claim 1, wherein the pliers have an L-shaped cross section, a flat surface, or an L-shaped cross section.