Closure fasteners – Bolts – Multiple
Patent
1994-11-08
1996-07-02
Lindsey, Rodney M.
Closure fasteners
Bolts
Multiple
292 39, 292160, E05C 100
Patent
active
055314937
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a releasable locking mechanism, and in particular, but not exclusively, to a releasable locking mechanism for incorporation into a child's chair to allow demountable connection of the chair to a plurality of different supports.
There has always been a need to adapt various articles so that they can be safely and demountably connected to corresponding supports. One example of this is in the area relating to children's furniture where articles such as chairs and bassinettes are adapted for demountable connection with stands and other supports. Often the devices used to allow demountable connection such as straps, clips, screws and bolts are difficult or inconvenient to use or require the use of hand tools to operate.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a releasable locking mechanism for demountably connecting an article to a support which is both easy and convenient to use.
According to the present invention there is provided a releasable locking mechanism adapted for attachment to an article for demountably connecting said article to a support, said locking mechanism comprising: being movable between a first position in which said locking mechanism can be demountably connected with said support and a second position in which said locking mechanism can be disconnected from said support; position to said second position; and, said article to said support.
Preferably said engaging means is retained in said locking mechanism for sliding movement between said first and second positions.
Preferably said retracting means for retracting said engaging means moves in a direction substantially perpendicular to the direction of movement of said engaging means.
Preferably said locking mechanism further comprises coupling means for coupling said retracting means to said engaging means such that movement of said retracting means causes said engaging means to move between said first and second positions.
Preferably said coupling means comprises a gear rotatably connected to said locking mechanism and wherein said engaging means and said retracting means are maintained in meshing contact with said gear.
Preferably said engaging means comprises at least two arms and said coupling means further comprises a second gear, wherein separate ones of said arms are in meshing contact with respective ones of said gears and said retracting means meshes with both of said gears whereby said retracting means can be manipulated to cause rotation of said gears and thereby slidably move both of said arms between said first and second positions.
Preferably said biasing means is connected with said retracting means such as to urge said engaging means to move toward said first position.
Preferably said releasable locking mechanism further comprises a catch moveable between a first state in which said engaging means is prevented from moving from said first position to said second position, and a second state in which said engaging means is allowed to move from said first position to said second position.
Preferably said catch includes a second biasing means for biasing said catch towards said first state.
Preferably said catch is manipulable for movement between said first and second states at a location remote from that at which said retracting means can be manipulated for movement.
Preferably said catch is operatively connected with said retracting means to selectively control movement of said retracting means.
Preferably said catch comprises an elongate member and first and second elements, wherein said first element is attached to said retracting means and said second element is connected with said elongate member whereby when said catch is in the first state, said first and second elements mutually engage to prevent movement of said retracting means, and when said catch is in said second state, said first and second elements are released from each other thereby allowing movement of said retracting means.
BRIEF DESCRIPTIONS OF THE DRAW
REFERENCES:
patent: 2431105 (1947-11-01), Brinson
patent: 2474722 (1949-06-01), Blume
patent: 3910611 (1975-10-01), Slovensky, Jr.
patent: 4363528 (1982-12-01), Olashaw et al.
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