A high security combination padlock constructed for resisting unauthorized persons from opening the padlock, said high security combination padlock comprising:
- A. a housing formed from heavy-duty, tamper resistant materials and incorporating a holding and locking zone formed therein;
- B. a first elongated bore formed in the housing in cooperating association with
- a. a plurality of dial receiving zones formed in the housing in juxtaposed, spaced, cooperating relationship with each other, each of said receiving zones
- 1. extending substantially perpendicularly to the axis of the first elongated bore, and
- 2. defined by two juxtaposed, spaced, parallel facing surfaces, each of said surfaces extending perpendicularly to the central axis of the first elongated bore;
- and
- b. at least one elongated release channel formed in the first elongated bore and axially extending therewith, said elongated release channel defining a zone for enabling the axial movement of an axially movable slider shaft;
- C. a second elongated bore formed in the housing in cooperating relationship with the holding and locking zone;
- D. a first axially movable member forming an elongated locking bar mounted in the second elongated bore and constructed for axial movement therein and positioned for providing locking and unlocking engagement with the holding and locking zone;
- E. a second axially movable member forming an elongated slider shaft mounted in said first elongated bore for controlled axial movement therein and cooperating with the locking bar for controlling the axial movement of the the locking bar and the locking/unlocking capabilities thereof;
- F. a plurality of tumbler sleeves, each of said tumbler sleeves
- a. being rotationally mounted to the slider shaft for rotational movement about the central axis thereof, and
- b. incorporating at least one radially extending fin formed on the outside surface thereof and constructed for cooperative association with the elongated release channel and the parallel facing surfaces of the dial-receiving zone for preventing the axial movement of the slider shaft as well as enabling axial movement of the slider shaft when each of said radial fins are positioned in the elongated release channel;
- G. a plurality of dials, each of said dials
- a. being mounted in a dial receiving zone of the housing,
- b. peripherally surrounding a tumbler sleeve for cooperating there with, and
- c. comprising an inside surface formed by a tumbler locking surface and a tumbler release surface;
- and
- H. a locking pin threadedly mounted in the housing for being advanced into the housing in cooperating association with one of said elongated bores in controlled engagement with the axially movable member mounted therein for preventing the axial movable member from being completely removed from said elongated bore for providing blocking engagement of the cooperating axially movable member and for being withdrawn from the housing for enabling the axially movable member to be withdrawn from the elongated bore;
- whereby a high security combination padlock is obtained which is quickly and easily assembled with a minimum number of components and provides a highly effective, combination padlock which resists unwanted tampering and effectively blocks unauthorized individuals from gaining access to the padlock.