JP3550262B2 - Firing intensity control device for pachinko ball firing device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pachinko ball launching apparatus that varies the degree of extension of a firing spring in accordance with the operation of an operation handle, and engages an adjusting gear that adjusts the degree of extension, that is, strength of the firing spring, with a driven gear to which the tension of the firing spring is applied. The present invention relates to a firing intensity adjusting device of a pachinko ball firing device which is improved to facilitate readjustment of the intensity of a firing spring.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a launching intensity adjusting device of a pachinko ball launching device, for example, there is one disclosed in Japanese Utility Model Laid-Open No. 6-15686. In this method, a sector gear portion on a pivot provided on a base, a pulley portion formed in another angular region of the sector gear portion, and a firing spring are stretched between a firing spring that strikes a hammer and an operation handle. A rotatable body rotatably supported by an operation handle is provided with an adjusting gear that meshes with the driven gear. Some have a lock mechanism that prevents rotation and enables rotation when the firing intensity is adjusted. In this structure, the adjustment gear is a gear that has teeth on the entire circumference and is always meshed with the sector gear of the driven gear.When adjusting the strength of the firing spring, pull the adjustment knob and pull it to the left. The adjustment shaft is moved to the left to release the engagement between the rotation restrictor and each engagement surface of the fixed ring, thereby allowing the rotation of the adjustment gear. In the turning range, a slit is provided in the turning cover, and the pin of the driven gear is located in the slit, so that the turning angle of the driven gear with respect to the turning cover is restricted by the pin.
[0003]
[Problems to be solved by the invention]
In the conventional firing intensity adjusting device, when adjusting the strength of the firing spring, if the adjusting gear is turned too much and the strength becomes too strong, the adjusting gear must be returned. The adjustment knob cannot be returned in the opposite direction unless the engagement between the engaging surface of the pulling rotation restrictor and the fixing ring is released. In order to disengage the engagement, a reverse rotation must be performed while strongly pulling the adjustment knob, so that it is difficult to adjust the strength of the reverse rotation, and to rotate. Since the depth of engagement between the restrictor and the engagement surface of the fixed ring cannot be seen from the outside, the operator pulls the knob with an excessively strong force, and by repeating this, the driven gear and the adjustment gear Of the rotation restrictor and the fixed ring This causes backlash in the engagement of the mating surfaces, and furthermore, the spring applied to the adjustment knob is weak with a synthetic resin elastic piece because the knob is pulled strongly as described above for each adjustment, and the spring may be broken. It was necessary to use a metal spring with a certain length.
[0004]
The present invention solves such a problem, and when adjusting the strength of the firing spring, it can always be adjusted by turning in one direction, and when the strength of the spring becomes too strong by turning the adjustment knob too much. By simply turning the adjustment gear in a certain direction without having to pull the adjustment knob, the meshing area of the adjustment gear can be exceeded, the meshing of the driven gear and the adjustment gear is removed, and the driven gear is returned to the original position by the spring. It is another object of the present invention to provide a launching strength adjusting device for a pachinko ball launching device that can re-engage the strength by re-engaging.
[0005]
[Means for Solving the Problems]
The firing intensity adjusting device for a pachinko ball firing device according to claim 1 of the present invention is a firing spring for repelling a hammer on a pivot provided on a base, a sector gear portion and a pulley portion formed in another angular region of the sector gear portion. A driven gear integrally provided with a hook portion for extending the shaft and a rotating cover body that is rotated in response to operation of an operation handle are pivotably supported, and the driven cover is driven by the rotating cover body. An adjusting gear meshing with the gear, and a lock mechanism that always prevents the adjusting gear from rotating with respect to the rotating cover body and allows the adjusting gear to rotate when the strength of the firing spring is adjusted. An adjusting tooth meshing with the driven gear is provided in a predetermined angle region of the peripheral surface, and a toothless idling portion is provided in other angle regions, and the strength can be adjusted by meshing the adjusting gear with the driven gear only in the predetermined angle region. And the predetermined angle area The by meshing with the driven gear is disengaged exceeds and is characterized in that it has to be readjusted back the driven gear.
[0006]
According to this configuration, the adjusting gear is rotated, the adjusting gear meshes with the driven gear, and the strength of the firing spring is adjusted in a predetermined angle range. Can be instantaneously returned by the spring force of the spring, the adjustment gear can be idled and engaged with the driven gear that has been restored again, and the strength can be adjusted again from the beginning.
[0007]
The invention according to claim 2 is characterized in that, as the adjusting gear, an angular region of the adjusting teeth to be meshed and an angular region of the idling portion having no teeth are alternately provided.
[0008]
According to this configuration, the angle region of the adjusting teeth to be meshed with and the angle region of the idling portion having no teeth are alternately provided, and the idling portion is narrowed, so that the range in which the adjusting gear deviates from the driven gear and slips can be reduced, The strength can be adjusted again by engaging the adjusting gear with the driven gear that has been returned to its original state by only slightly rotating the adjusting gear.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
In the embodiment of the present invention, FIG. 4 shows a pachinko ball launching device provided with a launching intensity adjusting device.
The pachinko ball firing device includes an operation handle 20, a drive shaft 21, and a cam 22. When a player's hand touches the operation handle 20, the drive shaft 21 is rotated by a motor, and the cam 22 is rotated in the same direction. The hammer 23 is provided so as to be capable of reciprocating rotation about a shaft 24. One end of the firing spring 7 is hung on the center of the hammer 23, and the other end of the spring 7 is hung on the hook 6 of the driven gear 3 described later. The hammer 23 is constantly urged in the return direction, an operating piece 25 is provided at the center of the hammer, the cam 22 faces the operating piece 25, and the cam 22 is rotated by the rotation of the motor. The hammer 23 is reciprocated by rotating the operating piece 25 to hit the pachinko ball with the hitting portion 23a of the hammer 23. Reference numerals 40 and 41 denote stopper rubbers for receiving the center and lower portions of the hammer 23.
[0010]
1 to 6 show an embodiment of a firing intensity adjusting device A of the pachinko ball firing device. The base 1 is attached to a game board with screws or the like, and a pivot 2 is erected on an upper portion thereof, and a sector gear portion 4, a pulley portion 5 formed in another angular region of the sector gear portion, and a firing spring 7 are formed. The driven gear 3 integrally provided with a hook portion 6 to be stretched, and a rotating cover body 9 which is rotated in response to the operation of the operation handle 20 are rotatably supported on the pivot 2 by E. Temporarily fixed by a ring. The rotating cover 9 includes an adjusting gear 8 that meshes with the driven gear 3. A lock mechanism 10 that always prevents the adjusting gear 8 from rotating and allows the adjusting gear 8 to rotate when the strength of the firing spring 7 is adjusted. And an arm 26 protruding from one lower side of the rotating cover body 9, a connecting shaft 27 is provided at the tip thereof, and a pulling wire 28 connected to the operation handle 20 is connected to the connecting shaft 27. By rotating the operation handle 20, the rotating cover body 9 can be rotated by the wire 28. Note that the base 1 is provided with a locking projection 29, which is received by the arm 26 of the rotating cover body 9 at the rotation limit position.
[0011]
In the embodiment of FIG. 1 to FIG. 3, the driven gear 3 forms a sector gear portion 4 in an angular region of approximately 90 degrees on the circumference and a pulley portion 5 in the remaining angular region. And a hook portion 6 is integrally formed at the end of the sector gear portion 4. A hook shaft 6 a is provided on the hook portion 6, and the hook shaft 6 a is connected to the firing spring 7. The wire 7a is hung and connected by stopping with an E-ring. The pulling wire 7a is pulled in accordance with the rotation of the driven gear 3, so that the degree of extension of the firing spring 7 can be adjusted.
[0012]
A bearing hole 30 is formed in the lower part of the rotating cover body 9, and an adjusting shaft 31 is provided so as to be rotatable and slidable in the axial direction. An adjusting gear 8 is fitted and fixed to the inner end of the shaft. An adjustment knob 32 for rotating an adjustment gear is fitted and fixed to the outer end of the shaft.
[0013]
In FIG. 6, the adjusting gear 8 has an adjusting tooth 11 formed in an angular area of about half a circumference on the circumference, and a toothless idle portion 12 is formed in an angular area of the remaining half circumference. Thus, the adjusting gear 8 can rotate by meshing with the sector gear portion 4 of the driven gear 3 only in the angular region of the adjusting teeth 11, and when it enters the region of the idling portion 12, the meshing with the driven gear 3 is released, and the driven gear 3 is driven. The gear is returned to its original position by the restoring force of the spring, and even when the adjustment knob is turned, the adjustment gear idles in a range without teeth. In the above-described embodiment, the adjusting gear 8 has a small diameter, and the adjusting teeth 11 and the idling portions 12 are provided substantially every half a circle, but the present invention is not limited to this.
[0014]
10 to 12 show another embodiment of the adjustment gear 8. That is, the diameter of the adjusting gear 8 is increased, and the adjusting teeth 11a and the idling portions 12a that mesh with the driven gear 3 are alternately provided. One of the adjusting teeth 11a is first meshed with the driven gear 3 to perform strength adjustment. When the gear is excessively turned, the gear is turned until the meshing is disengaged, the driven gear is returned to the original position by the restoring force of the spring, the adjusting gear idles at the toothless idler 12a following the adjusting tooth, and its narrow idling area is reduced. When the adjustment is completed, the next adjusting tooth 11a is meshed with the driven gear 3, and the strength can be adjusted again. In the case of this adjusting gear, the idling portion 12a can be narrowed, so that the next meshing can be performed quickly, and the rotation of the adjusting knob can be reduced.
[0015]
As a locking mechanism 10 for the adjusting gear, a rotation preventing element 33 having a serrated annular engaging surface 34 is formed inside an adjusting knob 32, and a serrated annular engagement is formed on the opposing rotating cover body 9. A fixed ring 35 having a surface 36 is integrally provided, and a spring 37 is interposed between the rotating cover body 9 and the adjusting gear 8 to constantly urge the adjusting shaft 31 by the spring to engage the engaging surfaces 34 and 36. The adjustment knob 32 and the adjustment shaft 31 are prevented from rotating. In this embodiment, since the knob is not turned backward, the adjustment knob is always rotated in one direction, that is, counterclockwise in the drawing.
[0016]
According to the embodiment, as shown in FIGS. 7 and 11, the adjustment knob 32 is turned in one direction to engage the adjustment gear 8 with the sector gear portion 4 of the driven gear 3 to start adjusting the strength of the firing spring. By turning the adjustment knob 32 and stopping it at the position shown in, for example, FIGS. 8 and 11, the firing spring is pulled to set the degree of extension of the hammer 23 to be large, thereby increasing the strength of the spring, and making the hammer hit the pachinko ball strongly. I do. If it is necessary to turn the adjustment knob 32 too much during the strength adjustment and return it, turn the adjustment knob 32 once until the adjustment teeth 11 of the adjustment gear 8 are disengaged from the end of the sector gear portion 4 as shown in FIGS. The adjustment gear 8 is idled by disengagement, and the driven gear 3 is returned to the original position by the spring force of the spring at the same time when the engagement is disengaged. The end of the gear section 4 can be engaged with the end of the gear section 4 to start rotating and adjust the strength.
[0017]
In the above embodiment, the spring 37 is wound around the shaft, but according to the structure of the present invention, it is not necessary to pull the adjustment knob 32, so that the spring interposed between the rotary cover body and the adjustment gear has low strength. An elastic piece made of a synthetic resin is sufficient. In the embodiment shown in FIGS. 13 and 14, an elastic piece 37 'having one free end is formed around the fixed ring 35 of the rotating cover body 9 in a bent manner. The adjustment gear 8 is pressed. With this structure, the number of parts can be reduced.
[0018]
The configurations of the driven gear and the rotating cover body are not limited to the above-described embodiment, and can be modified and implemented without departing from the gist.
[0019]
【Example】
Hereinafter, an embodiment of a firing intensity adjusting device for a pachinko ball firing device according to the present invention will be described.
Example 1
In FIGS. 1 to 6, the driven gear 3 is made of synthetic resin, and forms a sector gear portion 4 in an angular region of approximately 90 degrees on the circumference, and forms a pulley portion 5 for applying a firing spring 7 in the remaining angular region. Further, a hook portion 6 is formed at the end of the pulley portion 5, a hook shaft 6 a is provided on the hook portion 6, and the firing spring 7 applied to the hammer 23 is connected to the hook portion 6 via the pulley portion 5 of the driven gear 3. Is suspended on the hanging shaft 6a. By changing the angle range of the adjusting teeth provided on the peripheral surface of the adjusting gear, the rotation angle of the driven gear 3 can be changed to change the maximum degree of extension of the firing spring.
[0020]
As shown in FIG. 6, the rotary cover 9 is also a synthetic resin rectangular body having a step at the center, and a bearing 9a for supporting the pivot 2 is formed on the upper part thereof. A bearing hole 30 provided with an adjusting shaft 31 of the adjusting gear 8, and an arm 26 projecting from one lower end to pivotally support the rotating cover 9 on the pivot 2, and The connecting shaft 27 of the arm section 26 and the operating handle 20 are connected by a pull wire 28.
[0021]
The adjusting gear 8 provided on the rotating cover body 9 has a small diameter, provided with adjusting teeth 11 on a half circumference of a peripheral surface, and formed with a toothless idling portion 12 on the other half circumference. 31 is attached to the shaft end.
[0022]
As a lock mechanism 10 for locking the adjustment gear 8 to the rotation cover body 9, a rotation prevention element 33 having a serrated annular engagement surface 34 inside an adjustment knob 32 connected to the adjustment gear 8 and an adjustment shaft 31. A fixed ring having a sawtooth-shaped annular engaging surface 36 is integrally provided on the opposed rotating cover body 9 side, and is always attached via a spring 37 between the rotating cover body 9 and the adjustment gear 8. When the adjusting knob 32 is rotated, the engaging surface of the rotation preventing element 33 of the adjusting knob 32 can be turned in one direction beyond the engaging surface of the fixed ring. There is.
[0023]
A strength scale 38 is provided on the front surface of the pulley portion of the driven gear 3, a notch window 39 is formed on the upper part of the rotating cover 9, and the driven gear 3 is adjusted with the adjusting gear 8 with respect to the rotating cover 9. When rotated, the notch window 39 can display a strength scale.
[0024]
7 to 9 show a state from the start of the engagement of the emission intensity adjusting device to the release thereof. As shown in FIGS. 7 and 9, the driven gear 3 is rotated by turning the adjusting gear little by little in one direction within a range where the adjusting teeth 11 on the half circumference of the adjusting gear 8 mesh with each other, and the degree of extension of the firing spring 7 becomes desired. The hook 6 is pivoted downward until the strength of the spring 7 is increased and the resilience of the hammer 23 is strongly adjusted. When the strength of the spring is excessively increased by turning in one direction, the spring is returned until the adjusting teeth 11 of the adjusting gear 8 are once disengaged from the sector gear portion 4 of the driven gear 3 as shown in FIG. The driven gear 3, which has been disengaged and disengaged, is instantaneously returned to the initial position by the restoring force of the spring, and the adjusting knob is turned in one direction to cause the adjusting gear 8 to idle in the idler section 12, and the idler section 12 ends. As a result, the adjusting teeth 11 are meshed with the sector gear portion 4 of the driven gear 3 which has been restored, and the strength adjustment can be performed again.
[0025]
Example 2
In the embodiment shown in FIGS. 10 to 12, the adjusting gear 8 provided on the rotating cover body 9 is made to have a large diameter, and toothless idling portions 12a, 12a are provided between the adjusting teeth 11a, 11a. Nine adjustment shafts 31 are provided at the shaft ends. As shown in FIG. 11, the adjusting teeth 11a of the adjusting gear 8 are engaged with the sector gear portion 4 of the driven gear 3 to adjust the strength. When the strength is excessively increased by turning too much, as shown in FIG. Turn until the adjusting teeth are disengaged to disengage, but since the idling area is narrow, if further turning, the next adjusting tooth 11a is immediately meshed with the gear portion 4 of the driven gear 3 that has been returned to its original position, and the strength is adjusted again. You can do it again. Since the idling portions 12a, 12a are narrowed, the idling range for turning the adjusting knob is small, and it is not necessary to turn the adjusting knob many times.
[0026]
In the embodiment shown in FIGS. 13 and 14, an elongated elastic tongue-like bent elastic piece 37 'is integrally formed at two locations above and below the fixed ring 35 of the synthetic resin rotating cover body 9, and this elastic piece 37' is formed. The adjusting gear 8 is biased. In the present invention, since the adjusting knob 32 is not pulled as in the prior art, the elastic piece is sufficient with a synthetic resin, and the number of parts can be reduced by such integration.
[0027]
【The invention's effect】
According to the firing intensity adjusting device of the pachinko ball firing device of claim 1 of the present invention, when adjusting the intensity of the firing spring, when the intensity is too strong, simply turning the adjusting gear in a certain direction, the adjusting gear can be adjusted. The meshing is released, the driven gear is instantly returned to its original state by the spring force of the spring, the adjustment gear idles, and the adjustment gear is meshed again to rotate the driven gear, thereby easily and quickly adjusting the strength. It can be convenient.
[0028]
According to the second aspect of the present invention, the adjusting teeth to be meshed with and the idling portions having no teeth are alternately provided, and the idling portions are narrowed. Therefore, when the adjusting gear is turned, the meshing is disengaged at one end until the driven gear is meshed again. , The range of turning the adjustment gear is small, and the strength can be adjusted immediately by meshing, which is more convenient.
[Brief description of the drawings]
FIG. 1 is a partially cutaway perspective view showing a firing intensity adjusting device of the present invention.
FIG. 2 is a longitudinal sectional view showing a state where an adjustment gear and a driven gear mesh with each other.
FIG. 3 is a longitudinal sectional view showing a state in which an adjustment gear and a driven gear are disengaged from each other.
FIG. 4 is a rear view showing a pachinko ball launching device provided with the launching intensity adjusting device of the present invention.
FIG. 5 is a front view of a driven gear.
FIG. 6 is a rear view of a rotating cover body provided with an adjustment gear.
FIG. 7 is a front view of the adjustment gear and the driven gear at the beginning of meshing;
FIG. 8 is a front view showing a state in which the degree of extension is increased by turning an adjustment gear.
FIG. 9 is a front view of a state in which the adjustment gear and the driven gear are disengaged from each other.
FIG. 10 is a rear view showing another embodiment of the adjusting gear of the rotating cover body.
FIG. 11 is a front view of a state where an adjustment gear and a driven gear are meshed.
FIG. 12 is a front view of a state in which the adjustment gear and the driven gear are disengaged from each other.
FIG. 13 is a perspective view of a main part of a rotating cover body provided with elastic pieces.
FIG. 14 is a sectional view of the same.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Base, 2 ... pivot, 3 ... driven gear, 4 ... sector gear part, 5 ... pulley part, 6 ... hook part, 7 ... firing spring, 8 ... adjustment gear, 9 ... rotating cover body, 10 ... lock mechanism Reference numeral 11: Adjustable teeth, 11a: Adjustable teeth, 12: Toothless idler, 12a: Toothless idler, A: Launching intensity adjusting device.

Claims (2)

A driven gear integrally provided with a pivot provided on the base, a sector gear portion, a pulley portion formed in another angular region of the sector gear portion, and a hook portion extending a firing spring for repelling a hammer, An adjusting gear that rotatably pivots on a rotating cover body that is rotated in response to operation of the operation handle, meshes the driven gear with the rotating cover body, and attaches the adjusting gear to the rotating cover body. In contrast, a lock mechanism that always prevents rotation and enables rotation when adjusting the strength of the firing spring,
The adjusting gear is provided with an adjusting tooth meshing with the driven gear in a predetermined angle region of the peripheral surface, and a toothless idle portion in the other angle region,
The adjusting gear is meshed with the driven gear only in a predetermined angle range so that the strength can be adjusted, and when exceeding the predetermined angle range, the meshing with the driven gear is released and the driven gear can be returned to the original position and readjusted. A firing intensity control device for a pachinko ball firing device. The firing intensity adjusting device for a pachinko ball firing device according to claim 1, wherein an angular region of an adjusting tooth to be meshed with and an angular region of an idling portion having no teeth are alternately provided as the adjusting gear.

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