초록 ▼

A lock mechanism to lock two parts relative to each other. The lock mechanism comprises a base plate (30) attachable to one said parts with a pivot pin (26) connected thereto, a keep (38) being defined in the pivot pin. A lock body (24) is also provided and this defines a channel (33) within which t

A lock mechanism to lock two parts relative to each other. The lock mechanism comprises a base plate (30) attachable to one said parts with a pivot pin (26) connected thereto, a keep (38) being defined in the pivot pin. A lock body (24) is also provided and this defines a channel (33) within which the pivot pin locates for rotation of the lock body relative to the pivot pin. A locking arrangement (36) is located within the lock body, and includes a movable bolt (37), which in extended and retracted positions engages with or disengages from the keep (38) to prevent or allow rotation of the lock body relative to the pivot pin. A latch plate (40) may be provided on the other part to cooperate with the lock body. This allows a wide variety of different parts to be secured relative to each other in such a way that they are securely held.

대표청구항 ▼

The invention claimed is: 1. A lock mechanism to lock a first part and a second part relative to each other, said lock mechanism having a closed configuration and a open configuration, and said lock mechanism comprising: a base plate attachable to the first part; a pivot pin secured to the base pla

The invention claimed is: 1. A lock mechanism to lock a first part and a second part relative to each other, said lock mechanism having a closed configuration and a open configuration, and said lock mechanism comprising: a base plate attachable to the first part; a pivot pin secured to the base plate, to prevent movement with respect thereto and having an axis of rotation substantially parallel to the base plate; a keep defined in the pivot pin; a lock body defining a channel within which the pivot pin is located, said lock body mounted for rotation around the pivot pin and with respect to the base plate, to move between the open and closed configurations; and a locking arrangement located within the lock body, said locking arrangement including a bolt movable between an extended position and a retracted position, whereby in the closed configuration the lock body and pivot pin are suitably positioned relative to each other such that the bolt may be moved by the locking arrangement to the extended position so as to engage the keep and thus prevent rotation of the lock body relative to the pivot pin, whereas in the open configuration the lock body and pin are not suitably positioned to enable the bolt to engage the keep. 2. A lock mechanism as claimed in claim 1, wherein the channel in the lock body is defined by a tubular sleeve which is located substantially to one side of the lock body, with the remainder of the lock body extending radially with respect to the sleeve, the sleeve having formed therein an aperture suitable to permit the movement of the bolt therethrough for engagement with the keep. 3. A lock mechanism as claimed in claim 2, wherein, in addition to the sleeve, the lock body comprises a curved bar, both ends of which are joined to spaced parts of the sleeve, a front cover plate which is arranged on one face of the sleeve and the curved bar, and a rear cover plate similarly arranged on the opposite face of the sleeve and curved bar, the sleeve, bar, front plate and rear plate together defining a lock chamber within which the locking arrangement is located. 4. A lock mechanism as claimed in claim 1 wherein the lock body is substantially D-shaped. 5. A lock mechanism as claimed in claim 1, wherein the base plate has two regions, which are formed at substantially a right angle to each other, and which is adapted to connect to the edge of the first part to be locked. 6. A lock mechanism as claimed in claim 1, wherein in the closed configuration the lock body overlies and obstructs the movement of the second part to be locked relative to the first part. 7. A lock mechanism as claimed in claim 1, wherein there is further provided a separate latch plate that is attachable to the second part and which may be brought in to proximity with the base plate when the first and second parts are suitably positioned relative to each other, and which latch plate may be held in close proximity with the base plate by the lock body when the lock body is in the closed configuration. 8. A lock mechanism as claimed in claim 1, wherein the lock body is provided with one or more pegs that locate within a cooperating female part in the base plate when the lock body is in its closed configuration. 9. A lock mechanism as claimed in claim 7, wherein there is provided one or more pegs on the lock body and a corresponding number of female parts on the base plate and holes in the latch plate, such that in the closed configuration the or each peg passes through the or each hole in the latch plate and into the or each female part on the base plate, thereby preventing relative movement of the base plate and latch plate. 10. A lock mechanism as claimed in claim 1, wherein the locking arrangement is actuated by a key. 11. A lock mechanism as claimed in claim 1, wherein the means by which the base plate is attached to the first part are concealed by the lock body when in the closed configuration. 12. A lock mechanism as claimed in claim 1, wherein the means of attachment of the base plate are fixings that pass through suitable screw holes in the base plate, and the heads of those fixings are covered by the lock body when in its closed configuration. 13. A lock mechanism as claimed in claim 1, which is adapted to form part of a hinge mechanism between the first part and the second part, with the pivot pin being coaxial with the axis of hinging, and in the closed configuration the relative hinging movement of the first and second parts is prevented. 14. A lock mechanism as claimed in claim 1, wherein the second part is a door or lid, and the first part is a frame for that door or lid or is a second door adjacent thereto. 15. A lock mechanism as claimed in claim 7, wherein the means by which the latch plate is attached to the second part are concealed by the lock body when in the closed configuration. 16. A lock mechanism as claimed in claim 7, wherein the means of attachment of the latch plate are fixings that pass through suitable screw holes in the latch plate, the fixings having heads which are covered by the lock body when in its closed configuration.