Claims
- 1. A lock comprising:
- a padlock case having a bottom end wall, the padlock case being formed to include a core-receiving chamber having an opening in the bottom end wall,
- a lock core in the core-receiving chamber,
- a padlock cap having a rear face, and
- means for mounting the padlock cap on the lock core to protectively block at least a portion of the chamber opening in the bottom end wall of the padlock case, wherein the lock core includes:
- a core body of figure-eight cross section having an upper lobe and an integral lower lobe, the upper lobe having an exterior surface, the lower lobe being formed to include a chamber for receiving a key plug, and wherein
- the mounting means depends from the rear face of the padlock cap and includes flange means for detachably engaging the padlock cap to an exterior surface of the upper lobe of the core body.
- 2. The lock of claim 1, wherein
- the upper lobe of the core body is formed to include at least one flange receiving slot having an opening in the exterior surface of the upper lobe,
- the padlock cap is formed to include a cavity configured to receive at least a portion of the core body, the cavity having a side wall embracing the exterior surface of the upper lobe, and
- the flange means engaging said at least one flange receiving slot in the upper lobe upon insertion of the core body into the cavity of the padlock cap.
- 3. The padlock of claim 1, wherein the lock core includes a key plug rotatably mounted therein, the key plug is formed to include a first key slot for receiving an operating key, the padlock cap has an outer face and an inner face, the padlock cap is formed to include a disc-receiving passageway extending between the outer and inner faces for alignment with the key plug, the padlock cap includes a radially inwardly projecting lip extending into the passageway, the padlock cap further includes a keyway disc mounted in the disc-receiving passageway for rotation relative to the key plug, the keyway disc includes a cylinder member having an exterior cylindrical wall and is formed to include a second key slot for alignment with the first key slot of the key plug, the second key slot opens radially outwardly through the exterior cylindrical wall, and second flange means for engaging the radially inwardly projecting lip of the padlock cap to position the keyway disc in the disc-receiving passageway adjacent to the key plug, the flange second means including a rib member extending radially outwardly from the exterior cylindrical wall of the cylinder member and bridge member coupled to the rib member to cover a portion of the key slot opening in the exterior cylindrical wall of the cylinder member.
- 4. The padlock of claim 3, wherein the lip includes a rearwardly presented surface, the padlock cap is received in the cavity of the padlock housing to cause the rearwardly presented surface of the padlock cap to lie in confronting relation with the lock core, and further comprising means for retaining the keyway disc in the passageway to cause the flange means to abut the rearwardly presented surface so that the bridge member is protectively captured intermediate the padlock cap and the lock core.
- 5. The padlock of claim 4, wherein the padlock cap includes an interior surface configured to define the passageway, the second flange means includes a radially outwardly facing exterior surface formed to include a recess, the exterior surface of the second flange means is situated in closely confronting relation to the interior surface of the padlock cap and the retaining means includes a resilient member received in the recess to fix the keyway disc in the passageway by means of a fit among the exterior surface of the second flange means, the resilient member, and the interior surface of the padlock cap.
- 6. A lock comprising:
- a padlock case having a bottom end wall, the padlock case being formed to include a core-receiving chamber having an opening in the bottom end wall,
- a lock core in the core-receiving chamber,
- a padlock cap having a rear face, and
- means for mounting the padlock cap on the lock core to protectively block at least a portion of the chamber opening in the bottom end wall of the padlock case, wherein the lock core further comprises:
- a key plug rotatably mounted in the core body, the key plug including a front face and being formed to include a first key slot having an opening in the front face for receiving an operating key,
- the padlock cap further including a forward face, the padlock cap being formed to include a disc-receiving passageway extending between the forward and rearward faces for alignment with the key plug, the passageway having a radially inwardly projecting lip, and
- a keyway disc including a cylinder member having an exterior cylindrical wall and being formed to include a second key slot for alignment with the first key slot of the key plug, the second key slot opening radially outwardly through the exterior cylindrical wall, and second flange means for engaging the radially inwardly projecting lip of the padlock cap to position the keyway disc in the disc-receiving passageway, the second flange means including a rib member extending radially outwardly from the exterior cylindrical wall of the cylinder member and a bridge member coupled to the rib member to cover a portion of the key slot opening in the exterior cylindrical wall of the cylinder member, the rib member and bridge member cooperating to define a rearwardmost surface of the keyway disc that is positioned in substantially abutting relation to the front face of the key plug.
- 7. A padlock comprising:
- a lock core having an exterior surface,
- a padlock cap mounted on the lock core, the padlock cap having a radially outwardly presented exterior surface, and
- a padlock housing formed to include an interior wall defining a cavity for receiving the padlock cap and the lock core, the interior wall surrounding the exterior surfaces of the lock core and padlock cap to protect the core and cap from external attack;
- wherein the padlock housing has an outer face, the lock core has a longitudinal axis and includes a core body of figure-eight cross section having an upper lobe and an integral lower lobe, the upper lobe having an exterior surface, the upper lobe of the core body being formed to include at least one flange receiving slot having an opening in the exterior surface of the upper lobe, the lower lobe being formed to include a chamber for receiving a key plug, and the padlock cap has a rear face, the padlock cap is formed to include a cavity for receiving a portion of the core body, the cavity has a side wall for embracing the exterior surface of the upper lobe, the padlock cap further includes:
- flange means depending from the rear face of the padlock cap for engaging the flange receiving slot of the lock core to interlock the padlock cap and the lock core against axial separation in opposing directions along the longitudinal axis of the lock core and to position the rear face of the padlock cap in closely confronting relation to the outer face of the lock core to protectively cover at least a portion of said outer.
Parent Case Info
This is a division of application Ser. No. 07/055,185, filed May 29, 1987 now U.S. Pat. No. 4,836,001 issued on Jun. 6, 1989 which is a continuation of application Ser. No. 06/718,538, filed Apr. 1, 1985, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2380395 |
Sep 1978 |
FRX |
2054021 |
Feb 1981 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
55185 |
May 1987 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
718538 |
Apr 1985 |
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