JPH0515348Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to a nail adjustment tool that can efficiently adjust the nails of a pachinko game machine.

B. Prior Art In a pachinko game machine, the balls that are bounced hit the nails and fall down in a dancing manner along the board surface, so the balls collide with each other many times, causing the nails to wobble or bend. The spacing becomes wider or narrower. It is well known that in game parlors, the payout rate is controlled by regularly inspecting the tables and adjusting the bending angle and spacing of the nails. The adjustment of the nails is left to a special engineer, usually called a nailer.

By the way, the nail craftsman's work relies on experience and intuition.For example, he holds a hammer in his left hand and a ball gauge in his right hand, and hits the nail with the hammer from the side.When the nail is slightly tilted, he uses the ball gauge to tighten the nail. I had to repeat this process over and over again by checking the spacing between the two and, if the correction was not sufficient, hitting it again with a hammer to adjust it. You can also use lead pliers or an adjustment screwdriver, or use pliers instead of a hammer.
Each person devises and uses tools that suit them.

C. Problems that the invention aims to solve As mentioned above, nail adjustment work involves repeated corrections and checks, so it takes a long time to the point where it is said to be a battle of patience, and the tools are not as good as they were a while ago. Things haven't changed much, and while the number of large-scale amusement parks has increased, the number of talented nailers is still small, so there has been a desire for more efficient tools to speed up nail adjustment.

D. Means for solving the problem The present invention is a pachinko machine that can bend the nails and adjust the spacing appropriately in one adjustment operation, eliminating the need for repeated adjustments and reducing the time required for nail adjustment. These are pliers for adjusting nails on game machines.
The structure of the pliers is such that the criss-crossing portions are pivotally supported to form a scissor-like shape, and the crimp portions protruding forward are moved toward and away from each other by opening and closing a grip portion extending rearward. Alternatively, a gauge member is installed with the interval regulating body located on the forward extension thereof, for example, the interval regulating body is a ball gauge,
A nail escape recess is provided on the opposing surface of the pressure welding part, and for the same purpose, a threaded part is provided extending to one end of the support pin that pivotally supports the intersecting part, and a long hole is provided at the base of the gauge member. The bolt is inserted into the elongated hole and tightened with a wing nut, so that the interval regulating body can be moved back and forth within the range of the elongated hole.

E. Effect When the spacing regulating body is inserted between the nails and gripped tightly so that the grip portion closes, the nails that are in contact with the left and right sides of the spacing regulating body are bent inward by the pressure welding portions. Thereby, the spacing between the nails can be narrowed to the width of the spacing regulating body, but not too narrow. Moreover, if a recess for the nail is provided on the opposite surface of the pressure welding part, there is no need to worry about crushing the head of the nail, and by adjusting the position of the spacing regulator, the degree of bending of the nail can be changed freely. can.

Embodiment The drawings show an embodiment of the pliers for adjusting nails for a pachinko game machine according to the present invention. In FIG. The pivot shaft 3a of the pliers main body 3, which operates the facing surfaces of the pressing parts 2, 2 protruding forward by opening and closing operations of the parts 1, 1, is provided with a ball gauge 4, which is a spacing regulating body, and a length. A gauge member connected to a mounting plate 5 having a hole 5a by a support rod 6 has a threaded portion extending to one end of the pivot shaft 3a,
By inserting the threaded portion into the elongated hole 5a and tightening it with the wing nut 7, the ball gauge 4 is inserted into the pressure contact portions 2, 2.
The elongated hole 5a is attached so that it can be adjusted by the length in the longitudinal direction of the long hole 5a or its extension. The grip portions 1, 1 are biased toward the open side by a spring 8, and a stopper 9 is provided on the opposing surface of the rear end to prevent the grip portions 1, 1 from being closed beyond a certain level. The stopper 9 is of an adjustable screw type. In addition, on the opposing surfaces of the pressure contact parts 2, 2,
Relief recesses 11, 1 corresponding to the head and shaft of the nail 10
1 are formed respectively.

For example, in order to narrow the gap between the two nails 10 that have widened tips using the pliers for adjusting the nails of a pachinko game machine formed in this way, first extend the gauge member forward and move the ball gauge 4 to the pressure welding part 2. Move it to the tip and tighten the nails 10, 10 from both sides as shown in the second figure. As a result, only the tips of the nails 10, 10 are bent, and the distance between them is narrowed. Moreover, an interval corresponding to the width of the ball gauge 4 is secured at the center. The stopper 9 prevents it from being too narrow, and the escape recess 11
There is no risk that the head of the nail 10 will be deformed due to this. Furthermore, by moving the ball gauge 4 between the press-contact parts 2, 2, it is possible to bend the ball so that the tip becomes narrower as shown in the third figure. You can also bend it left and right while tightening it, or tilt it up and down.

Nails have some elasticity, and when the tightening force is released, the spacing may widen due to a slight return, so prepare ball gauges of different sizes and use them as appropriate depending on the stand.

Although the above embodiment uses a ball gauge as the spacing regulator, the tip of the flat plate may be bent at a right angle as shown in FIG. As shown in the figure, the gauge member is made of only a flat plate, or the rear end of the gauge member is hooked to the center of the spring so that the regulating body is always located in the center between the pressure contact parts to improve operability.
Further, the shape of the gauge member, the method of attachment, etc. are not limited to those in the embodiment, such as directly fixing the gauge member to the shaft.

Effects The pliers for adjusting nails of pachinko machines of the present invention are
Since the spacing between the nails can be easily corrected by simply applying the spacing regulating body between the nails and tightening them, the time required for adjusting the nails is greatly shortened, and adjustment can be done by one person even in a large game hall. Therefore, the practical benefits are enormous.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of nail adjustment pliers for a pachinko game machine according to the present invention, FIGS. 2 and 3 are explanatory diagrams showing the procedure for nail adjustment, and FIGS. 4 and 5 are perspective views of modified examples. It is. 1... Grip part, 2... Pressure contact part, 3... Pliers body, 3a... Pivot shaft, 4... Ball gauge, 4'...
Spacing regulator, 5...Mounting plate, 5a...
Elongated hole, 6...support rod, 7...wing nut, 8...spring, 9...stopper, 10...nail, 11...relief recess.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a pair of pliers whose intersecting parts are pivotally supported to form a scissor-like shape, and which actuate forwardly protruding pressing parts to move toward and away from each other by opening and closing a grip part that extends rearward. , pliers for adjusting nails of a pachinko game machine, characterized in that a gauge member is attached such that a spacing regulating body is located between the press-contact parts or on the front extension thereof. 2.Claim 1, wherein the distance regulating body is a ball gauge.
Pliers for adjusting nails for pachinko game machines as described in section. 3. The nail adjusting pliers for a pachinko game machine according to claim 1 or 2, wherein a nail escape recess is provided on the opposing surface of the pressure contact part. 4. In the nail adjustment pliers, a threaded portion is provided at one end of the support pin that pivotally supports the intersecting portion, and a long hole is provided at the base of the gauge member, and the bolt is inserted through the long hole to tighten the screw. Pliers for adjusting nails in pachinko game machines that are tightened with a nut and allow the spacing regulator to be moved back and forth within the range of the long hole.