Title:
PINBALL GAME MACHINE
Document Type and Number:
Japanese Patent JP3927097
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pinball game machine which can prevent an unfair act done by placing a fine wire such as a piano wire etc. inserted through a key hole onto a game board.
SOLUTION: In the pinball game machine 1, a transparent plate retaining frame 5 is openably and pivotally attached to one side of the front face of an inner frame body 4. The transparent plate retaining frame 5 comprises a synthetic resin made main body frame 5a and a reinforcing metal plate 5b set to the back side of the main body frame 5. A cylinder lock 57 is set on the other side of the inner frame body 4. On the other hand, the key inserting hole 59 to which the key hole part 57 on the front end of the cylinder lock 57 is facing and a through-hole 58 into which the cylinder lock 57 is inserted when the transparent frame 5 is closed are respectively opened in the main body frame 5a and the reinforcing metal plate 5b. A metallic unfair act preventing frame 60 into which the front end part of the cylinder lock 57 is inserted corresponding to the key inserting hoe 59 is set on the back face of the main body frame 60. An inserting hole 60d which is communicated with the key inserting hole 59 and blocked by matching the key hole part 57a when the transparent plate retaining frame 5 is closed is bored.
Inventors:
Hiroshi Enomoto
Application Number:
JP2002247705A
Publication Date:
June 06, 2007
Filing Date:
August 27, 2002
Export Citation:
Assignee:
Kyoraku Sangyo Co., Ltd.
International Classes:
A63F7/02; (IPC1-7): A63F7/02
Domestic Patent References:
| JP2002028329A | ||||
| JP6185275U | ||||
| JP3131285A | ||||
| JP200096893A | ||||
| JP200252218A | ||||
| JP1119307A |
Attorney, Agent or Firm:
Koji Ito