CORD LOCKS

Abstract: A cord lock for adjustably fastening a cord to be threaded therethrough comprises a body (2) having an identaiton (10) in an exterior surface, which indentation (10) is adapted to releasably receive a portion of said cord, and means for releasably locking said portion of the cord in the indentation (10) of the body (2). In one embodiment the body (2) is a socket (2) and the means for releasably locking said portion of the cord in the indentation (10) is a plug (4) which is slidably mounted in the socket (2). The body may further comprise an aperture (8) which is adapted to receive a further portion of said cord, and means (4) for releasably locking said further portion of the cord in the aperture (8).

Description: DESCRIPTION CORD LOCKS The present invention relates to cord locks, and in particular, but not exclusively to cord locks for adjustably fastening a cord threaded through a seam of an anorak, tent or rucksack. Conventionally, a cord is threaded through a peripheral seam on a hood of a jacket with each end of the cord protruding from a respective end opening of the seam. Each protruding end of the cord carries a respective cord lock. The hood is fastened about the face of the user by shortening the length of cord extending between the two cord locks thereby puckering the seam and reducing the size of the aperture of the hood. The length of the cord is adjusted by the two separate cord locks which are also known as toggles such that in the unlocked position of the cord lock, relative movement between the cord and cord lock is possible, and the lock can be moved along the length of the cord. In the locked position of the cord lock, relative movement between the cord and cord lock is not possible and the cord lock which is wider than the end opening of the seam, prevents the cord slipping through the seam. If the user wishes to fasten the hood, it is necessary to tie together each protruding end of the cord. This has the disadvantage that the ends of the cord can become knotted, making it difficult for the user to untie the ends of the cord and remove the hood. Furthermore, the act of tying the ends of the cord can be cumbersome . It has been proposed to overcome the above described drawback by providing a single cord lock through which both ends of the cord permanently extend. Thereby, both ends of the cord are permanently fastened together by the single cord lock and the length of the cord is adjusted by unlocking the single cord lock and moving the lock along the cord to a new position whereat it is once again locked to prevent further relative movement. However, this particular type of cord lock has the disadvantage that because the ends of the cord are permanently attached to the cord lock, it is not possible to separate the ends of the cord. Therefore, the user can only remove or put on the jacket by passing his head through the cord loop formed by the lock. This necessitates a somewhat long length of cord to enable the loop to be enlarged sufficiently to enable the head of the user to easily pass therethrough. Thereby, each end of the cord extending from the seam is extremely long and the cord lock in the unfastened position is situated in the region of the waist of the user and can swing about causing possible injury. Also, the cord and/or lock can become entangled in, for example, a bicycle wheel, thereby causing the user to fall from the bicycle. It is an object of the present invention to provide a cord lock which overcomes or alleviates the problems associated with the known cord locks. In accordance with one aspect of the present invention, there is provided a cord lock which in use releasably fastens together both ends of a cord, the cord lock comprises a body having an indentation in an exterior surface, which indentation is adapted to releasably receive a portion of said cord, and means for releasably locking said portion of the cord in the indentation of the body. This has the advantage that both ends of the cord can be fastened together by a single cord lock without knotting. Removal of the cord from the lock allows the two ends of the cord to be separated, thereby allowing easier removal of a jacket. The length of the cord can be adjusted by altering the portion of the cord which is held by the lock. In one embodiment the body of the cord lock further comprises a bore which is adapted to receive a further portion of said cord, and more preferably the cord lock further comprises means for releasably locking said further portion in the bore. This has the advantage that the lock can be threaded on one end of the cord and the length of the cord can be adjusted by passing the cord through the bore in the unlocked state. Since one end of the cord is not readily released from the lock when the other end of the cord is removed from the lock, the lock remains on the cord, which prevents loss of the lock. In another embodiment, the cord may be directly or indirectly attached to the cord lock, for example, by means of a knot passing through an aperture in the body. Preferably, the body comprises a socket and the means for releasably locking said portion and/or said further portion of said cord is a plug which is slidably mounted in the socket. Preferably, the socket and the plug have corresponding bores which are alignable and which form a passage through the cord lock. Preferably, the socket and the plug have corresponding surface indentations which are alignable and which form an opening through the cord lock. Preferably the indentation opens out from the exterior towards the centre of the body and is more preferably key hole shaped. Preferably, the indentation in the body is closeable with respect to the exterior of the body. This has the advantage that a cord placed in the indentation cannot be accidentally removed. Preferably, the indentation in the body is closeable by the plug. Preferably, resilient means act between the plug and socket. Preferably, the resilient means is a compression spring. Preferably, the body is metallic and/or a plastics material . Preferably, the body has a triangular cross- section and the indentation is provided in the region of an apex of the triangular shape. Preferably, the body has a rectangular cross- section. This has the advantage that the body has an enlarged section in the region adjacent the indentation allowing for strengthening of the lock in the vicinity of the indentation. By way of example only, specific embodiments of the present invention will now be described, with reference to the accompanying drawings, in which:- Fig. 1 is a perspective view of a cord lock, constructed in accordance with one embodiment of the present invention, illustrating the cord lock in the locked position; Fig. 2 is a perspective view of the cord lock of Fig. 1 illustrating the cord lock in the unlocked position; Fig. 3 is a perspective view of a cord lock, constructed in accordance with a second embodiment of the present invention, illustrating the cord lock in the unlocked position; and Fig. 4 is a perspective view of a cord lock, constructed in accordance with a third embodiment of the present invention, illustrating the cord lock in the unlocked position. The cord lock of the embodiments of Figs. 1 to , comprises a socket 2, a plug 4 movably fitted in the socket 2, and a compression spring 6 which is located within the socket 2 and acts between the socket 2 and plug 4. In embodiments 1 and 2 the socket 2 has diametrically opposed apertures 8 (only one of which is visible in the Figures) which form a passage 9 through the socket 2, and a peripheral opening 10 and the plug 4 has a through-bore 12 and a peripheral opening 14. In embodiment 3 , passage 9 and throughbore 12 are replaced by a simpler arrangement which enables the cord to be fixedly attached to the cord lock. In the locked or rest position, as best illustrated in Fig. 1, the longitudinal axis of the bore 12 is axially offset with respect to that of the passage 9, and the opening 14 is axially offset with respect to the opening 10. An edge 26 of the plug 4 and an edge 27 of the socket 2 causes the opening 18 to be closed at its periphery. A cord is threaded through the cord lock by displacing the plug 4 against the resiliency of the spring 6 , into the socket 2. This is achieved by depressing the plug's protruding end 16. This results in the co-axial alignment of the bore 12 of the plug 4 with the passage 9 of the socket 2. One end of a cord (not illustrated) may then be threaded through the plug and socket combination through a passageway, created by the aligned passage 8 and bore 12. The cord is locked in place by removing the displacement force applied to the end 16 of the plug 4 which results in the spring 6 returning the plug 4 to the rest position. This results in the cord being trapped between the plug 4 and socket 2 and their now misaglined bore 12 and passage 8. In use, the length of the cord can be adjusted by simply displacing the plug 4 down into the socket 2 in order to align the bore 12 and passage 8 and thereby allowing the cord to move freely through the resultant passageway. The cord is locked in position simply by releasing the plug 4. In order to fasten the two ends of the cord together, the end 16 of the plug 4 is depressed as hereinabove described which results in the alignment of the opening 10 of the socket 2 and opening 14 of the plug 4. A length of cord at the free end of the cord, remote from the lock, is then placed in the resultant opening 18. By releasing the plug 4, the plug 4 is returned to its rest position by the spring 6 with a consequential misalignment of the openings 10, 14, whereby the cord is trapped between the socket 2 and plug 4. The two ends of the cord are thereby fastened together by the cord lock and can be simply unfastened by re-alignment of the openings 10, 14 by depressing the plug and removal of the cord from therein. The openings 10, 14 are each rectangular shaped notches in the surface of the respective socket and plug, whose interior 20, 22 opens out and is substantially rounded. The embodiment of Figs. 1 and 2 illustrate a tubular socket and plug, although is should be appreciated that the invention is not restricted to the shape of a conventional toggle, for instance, the embodiment of Fig. 3 illustrates a variant on the shape of the plug and socket where the overall design is triangular. In the embodiment of Fig. 3, the opening 18 is located in the region of an apex of the triangular shape of the lock. The region 24 adjacent the opening 18 thereby has an increased magnitude, in comparison to the lock of a tubular design. The increased size of the region 24 improves the overall strength of the lock in the region 24 and reduces stress in the region 24 when the end 16 of the plug 4 is depressed. In the embodiment of Fig. 4, (compare to Fig. 2) one end of a cord 28 passes through a passage 9' in an end 30 of the socket 2 remote from the end 16 of plug 4. The end of the cord 28 can be tied off, knotted, within a void (not shown) in which the resilient means, for example, a compression spring is housed. The other end of the cord passes through locking means 4 in the same manner as described with reference to Fig. 2. This arrangement is particularly effective when the cord is tightened, by pulling it along the longitudinal axes 32 of the cord lock body as opposed to the longitudinal axis 34 of opening 18. Such a cord lock is ideal as a toggle in the waist of, for example, an anorak. In an alternative embodiment, not illustrated, the overall design of the lock is rectangular and the opening 18 is provided in one surface or a corner region of the rectangular shape. This design also provides a region of increased magnitude adjacent the opening 18.

Claims: CLAIMS 1. A cord lock which in use releasably fastens together both ends of a cord, the cord lock comprising: a body (2) having an indentation (10) in an exterior surface, which indentation (10) is adapted to releasably receive a portion of said cord, and means for releasably locking said portion of the cord in the indentation (10) of the body (2) . 2. A cord lock as claimed in claim 1 in which the body (2) is a socket (2) and the means for releasably locking said portion of the cord in the indentation (10) is a plug (4) which is slidably mounted in the socket (2) 3. A cord lock as claimed in any of the preceding claims in which the body (2) further comprises an aperture (8) which is adapted to receive a further portion of said cord, and means (4) for releasably locking said further portion of the cord in the aperture (8) . 4. A cord lock as claimed in claim 2 or 3 in which the plug (4) has an indentation (14) which is alignable with socket indentation (10) . 5. A cord lock as claimed in claim 4 in which the plug and socket indentations (14,10) open out from their exterior towards their interior. 6. A cord lock as claimed in claim 5 in which the socket indentation (10) is closable by the plug indenta ion (14) . 7. A cord lock as claimed in any of claims 2 to 6 in which a resilient means (6) acts between the plug (4) and the socket (2) . 8. A cord lock as claimed in claim 7 wherein the resilient means is a compression spring. 9. A cord lock as claimed in any of the preceding claims wherein the body (2) has a triangular cross section and the indentation (10) is provided at an apex of the triangular shape. 10. A cord lock as claimed in any of claims 3 to 9 in which the plug bores (9) and socket bore (12) are alignable.

Inventors: ARONSSON GARY, ARONSSON, GARY
Applicants: ARONSSON GARY, ARONSSON, GARY
Application year: 1997
Main classification: F16G11
IPC codes: F16G11