JPS6142633Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a ball mallet for a pachinko machine.

Conventional pin ball mallets for pachinko machines have a hammer tip spring attached to a short mallet tip provided at the tip of the iron main body of the mallet. The hammer tip spring becomes unusable in a short period of time due to the impact of the bullet, so the hammer tip spring must be replaced frequently, and replacing the mallet tip spring is time-consuming. There were various drawbacks such as damage to the surrounding area and the need to replace the entire hammer, and the springs at the tips of the hammers varied in spring strength, which required a lot of effort to adjust.

The present invention was completed with the aim of creating a pinball mallet for pachinko machines that does not have the above-mentioned drawbacks. A hammer tip member 5 made of an elastic plastic material, which is provided with a stop portion 3 and has a ball hitting mallet tip 4 integrally molded on the mounting base 2, is attached to an arm plate 6.
The rotation prevention part 3 is forcibly fitted between the front and rear retaining parts 7 and 8 provided at the tips of the retaining parts 7 and 8, and the rotation prevention part 3 is engaged with the rotation prevention part 9 provided between the retention parts 7 and 8. be. In addition, in the figure, 10 is a shaft attachment part provided at the base of the arm plate 6, and 11 is a shaft attachment part to further increase the elasticity of the batting mallet tip part 4 and to enhance decorativeness.
A large number of annular grooves are provided as needed on the outer circumferential surface of the ball hitting mallet tip 4, and 4' is a central hole provided as necessary in the ball hitting mallet tip 4 in communication with the hole serving as the rotation stopper 3. The center hole 4' is designed to receive a ball at the edge of the tip hole so that the ball hitting surface of the ball hitting mallet tip 4 is not unevenly worn due to the impact of the ball and is positioned at the center.

When the device configured in this way is used by being attached to the ball shaft of a pachinko machine, similar to a conventional ball mallet for a pachinko machine, the locking part 7 and 8 provided at the tip of the arm plate 6 is A hammer tip member 5 made of an elastic plastic material with excellent abrasion resistance such as polyurethane resin is forcibly fitted into the attachment base 2 of the hammer tip member 5 through a horizontally provided fitting hole 1. 7,
Since the rotation stopper 9 provided between 8 and 8 is engaged with the rotation stopper 3 provided on the attachment base 2, the ball is hit by the ball hitter formed integrally on the attachment base 2 of the hammer tip member 5. The bullet is fired through the hammer tip 4, and is properly buffered due to the material properties of the hammer tip member 5, so that no noise is emitted, and the arm plate 6, the mounting shaft, the ball handle, and the electric motor. There is no adverse effect on Moreover, the attachment of the hammer tip member 5 made of an elastic plastic material to the arm plate 6 involves forcibly fitting the fitting hole 1 into the tip of the arm plate 6 which does not have a short hammer tip member to prevent it from coming off. 7 and 8 do not allow the hammer tip member 5 to slip out, and rotation is also prevented by the engagement between the rotation stopper part 3 and the rotation stopper part 9.
Not only is there no risk of the ball coming off, but the ball hitting mallet tip 4 hardly oscillates, so it is possible to repeatedly hit the ball accurately. However,
When the ball hitting hammer tip 4 of the hammer tip member 5 wears out during long-term use, the locking portion 3 is engaged with the locking portion 9 to form a fitting hole 1 between the locking portions 7 and 8. The hammer tip member 5 made of an elastic plastic material to which the mounting base 2 is forcibly fitted can be removed using the elasticity of the material and easily replaced with a new hammer tip member 5. It is easier to replace the hammer tip spring in a conventional ball mallet that uses a hammer tip spring that is harder than the material, and there is no risk of damaging the surrounding area.Furthermore, the mallet tip member 5 made of elastic plastic material is easy to mold. Moreover, the arm plate 6 without a short hammer tip is easy to manufacture and can be mass-produced at low cost.Furthermore, since the hammer tip member 5 made of elastic plastic material has no variations in the product, it is easy to adjust the ball spring. There are various advantages such as: Note that the rotation prevention part 3 shown in the illustrated embodiment has a hole that can engage a projection as the rotation prevention part 9 provided between the projections as the prevention parts 7 and 8, but the rotation prevention part 3 is used as a projection. Of course, the stop portion 9 may be a recess.

Therefore, the present invention has great practical value as it eliminates the drawbacks of conventional pinball mallets for pachinko machines.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an embodiment of the present invention, Fig. 2 is a partially cutaway front view of the main part, and Fig. 3 is a partially cutaway perspective view showing the hammer tip member and arm plate separated. It is a diagram. 1: Fitting hole, 2: Mounting base, 3: Rotation stopper, 4: Ball hitting mallet tip, 5: Hammer tip member, 6: Arm plate, 7, 8: Front and rear retaining parts, 9: Rotation Stop part.

Claims (1)

[Scope of utility model registration request] A locking part 3 is provided on a mounting base 2 in which a fitting hole 1 is provided in the lateral direction, and a hammer tip member 5 made of an elastic plastic material is provided with a ball-hitting mallet tip 4 integrally formed on the mounting base 2. The rotation prevention part 3 is forcibly fitted between the front and rear retaining parts 7 and 8 provided at the tip of the arm plate 6, and the rotation prevention part 3 is engaged with the rotation prevention part 9 provided between the retention parts 7 and 8. A ball mallet for pachinko machines.