JPH0578445U - Jig for reversing type steel - Google Patents

Abstract

(57) [Abstract] [Purpose] During the construction of a ship or the processing of a steel frame for construction, the shaped steel 13 such as angle steel or spherical flat steel is inverted, Invert on a plane,
When holding it, the jig for reversing the shape steel is characterized in that it is possible to selectively use it during the reversing work and the inverted holding work by simply rotating the lever 7 of the handle portion 6 and to secure the safety. [Structure] A steel jaw plate portion 1 having a recess for fitting one side of a shaped steel 7, and a steel pipe handle which is connected to the steel jaw plate portion 1 by a pin 2 and a connecting metal fitting 3 so as to be rotatable approximately 90 degrees. Part 6, a round bar steel 5 which is inserted into the handle part 6 and has a stopper 4 fixedly mounted on the tip thereof, a coil spring 8 attached to the other end of the round bar steel 5 and the coil spring 8 and a steel jaw plate of the stopper 4 A lever attached to the tip of the handle 6 for controlling the fitting / removal of the part 1.
A jig for reversing a mold steel composed of 7 and.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is mainly for reversing the angle steel or the ball flat steel during the construction of a ship or the processing of the steel frame for construction, or the angle of one of the angle steel or the ball flat steel is changed to one surface of the flat steel plate or the like. The present invention relates to a jig used for holding the contact surface of the.

[0002]

[Prior Art]

 Conventionally, as a jig for reversing a die steel of this type or an inversion holding jig for the die steel, a steel jaw plate portion having a concave portion that fits into the cross-sectional shape of the die steel is fixedly provided at the tip of a round bar serving as a handle portion. Things are known.

[0003]

[Problems to be solved by the device]

 According to the conventional technology, when the model steel, which is the body to be inverted, starts to reverse, the operator must remove the model steel reversing jig from the model steel after passing half the reversal angle. , When the mold steel, which is the member to be inverted, is splashed by the rotating couple, or when the operator releases the grip of the mold steel reversing jig, the mold steel and the surface plate or flat steel plate at the completion of the mold steel reversal There has been a problem that the inversion jig is destroyed by the impact on the contact surface.

The present invention has been made in view of the above problems of the conventional technology, and the purpose thereof is to selectively use the mold steel when it is inverted and when the mold steel is held upside down. It is an object of the present invention to provide a model steel reversing jig capable of performing lever operation of the handle portion by a simple operation.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, a die steel reversing jig according to the present invention is a steel jaw plate portion having a recess for inserting one side of a die steel, and a pin and a connecting metal fitting that can rotate about 90 degrees with the steel jaw plate portion. Handle made of steel pipe to be connected, a round bar steel having a stopper fixed at the tip inserted into the handle made of steel pipe, a coil spring surrounding the round bar steel, and a lever attached to the tip of the handle part controlling the stopper. The coil spring is expanded and contracted by the rotation of the lever to control the engagement / disengagement of the stopper with the steel jaw plate.

[0006]

[Action]

 The coil spring built into the handle lever facilitates the fitting and removal of the stopper from the steel jaw plate, and ensures the fitting and the retention of the separation.

[0007]

【Example】

 Examples will be described with reference to the drawings.

1 to 4, a steel jaw plate portion 1 has a stopper 4 fixed to a front end through a coupling fitting 3 and a pin 2, and a screw portion so that the other end can be screwed with a nut 11. It is attached to the end of the steel pipe 6 containing the round steel bar 5 provided with.

A coil spring 8 is inserted between the round steel bar 5 and the steel pipe 6, and a lever 7 is attached also as a retainer for the coil spring 8.

After mounting the lever 7 on the round steel bar 5, the nut 11 is screwed onto the end of the round steel bar 5 and the split pin 12 is mounted.

A fixing pin 9 made of solid and small round steel is projected at one point where the lever 7 is attached to the round steel bar 5, and a notch guide is provided on the lever 7 so that the fixing pin 9 can be fitted to the fixing pin 9. A hole 10 is provided.

When the lever 7 is rotated and the fixing pin 9 is guided to the bottom dead center 14 of the guide 10, the coil bar 8 loosens, and the stopper 4 at the tip of the round bar steel 5 comes out from the recess of the steel jaw plate 1. , Only one-way rotation is possible.

When the lever 7 is rotated and the rotary pin 9 is guided to the top dead center 15 of the guide 10, the coil bar 8 is compressed and the stopper 4 at the tip of the round steel bar 5 is recessed in the steel jaw plate 1. Then, the steel jaw plate 1 and the round steel bar 5 are integrated, and the steel jaw plate 1 does not rotate independently.

[0014]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects. Only by turning the lever of the handle, the stopper at the steel bar of the round bar is inserted into or removed from the steel jaw plate, and the handle and steel jaw plate are integrated, or can be rotated approximately 90 degrees in one direction. Therefore, it becomes possible to use the mold steel upside down and when the mold steel is inverted.

[Brief description of drawings]

FIG. 1 is a schematic view of a vertical section of the present invention.

FIG. 2 is a schematic plan view of an essential part of a connecting portion between a steel jaw plate and a handle portion of the present invention.

FIG. 3 is a schematic view showing a cross section of a round steel bar according to the present invention.

FIG. 4 is a detailed view of a lever portion of the present invention.

[Explanation of symbols]

 1 Steel jaw plate part 2 Pin 3 Connecting metal fitting 4 Stopper 5 Round bar steel 6 Handle part 7 Lever 8 Coil spring 9 Fixing pin 10 Notch guide hole 11 Nut 12 Split pin 13 Model steel 14 Bottom dead center 15 Top dead center

Claims (1)

[Scope of utility model registration request] 1. A shape steel reversing jig for reversing a shape steel such as chevron and flat bar during the construction of a ship or processing of a steel frame for construction, and for maintaining the inverted shape of the shape steel. A steel jaw plate portion having a recess for inserting one side, a steel pipe grip portion connected to the steel jaw plate portion by a pin and a connecting metal so as to be rotatable by 90 degrees, and a tip inserted into the grip portion. A steel jaw plate portion and a grip portion, which are composed of a coil spring attached to a round bar steel with a stopper fixed thereto and a lever with a guide hole to be fitted with a fixing pin, can be rotated by 90 degrees by rotation of the lever. A jig for reversing type steel, which is characterized in that