Patent Abstract:
A method of fitting a childproof latch fitting mechanism and a latch installation tool arranged to locate between a first latch fitting and a second latch fitting, to spatially locate the first and second latch fitting at a pre-determined distance respectfully one from the other, wherein in the installation tool is temporarily attached to the first and second latch fittings, whilst they are located and fixed, at least temporarily in place.

Full Description:
REFERENCE TO RELATED APPLICATION 
       [0001]    This application claims priority to and the benefit of UK patent application GB 1506682.2, filed Apr. 20, 2015 and entitled “LATCH FITTING TOOL”, the entirety of which is hereby incorporated by reference. 
         [0002]    The present invention relates to a latch fitting tool for latches for drawers, cabinet doors and the like, and, more particularly, to “child-proof” latches that include features which make them difficult to be actuated by small children. 
       BACKGROUND OF THE INVENTION 
       [0003]    Drawers are commonly used in daily life in kitchens, bedrooms, offices, etc. to store a wide range of articles, some of which may be harmful to children. Small children may also attempt to climb on, or even in, drawers and cabinets in an effort to hide. Drawers and cabinets may house many types of materials which may be potentially hazardous to children such as medicines, household cleaners, knives, tools, paint, etc. 
         [0004]    To prevent young children from accessing these storage areas, numerous items have been patented and sold, most of a multi-piece assembly. Generally, some sort of a longitudinal member with a hook portion is attached to the inside surface of a drawer or door to limit the amount the drawer or door may be opened. The hook portion may engage with a stop installed on a frame portion of the cabinet as the drawer or door is withdrawn. Only a small space may then remain for an adult to insert their finger to depress the longitudinal member such that the hook may clear the stop on the frame of the enclosure. 
         [0005]    In many cases, these latches require at least two components, which need alignment during installation or adjustment after installation. These components generally include a stop portion, or catch, attached to the enclosure and a hook portion attached to the inside of the drawer. This mechanism may further require a biasing member (springs, etc.) to bias the hook member against the stop member. 
         [0006]    What is needed is a “child-proof” safety latch that is easy to install on the inside surface of a drawer, or door, and which includes more than one action which must be actuated to release the latch. Thus, a drawer, or cabinet door, may only be partially opened and its contents kept secure from children. Upon actuation of the more than one action by an adult, the contents may become accessible. 
         [0007]    It is thus an object of the present invention to provide a latch which may preferably be moulded of plastic to provide a low cost safety latch. 
         [0008]    It is a further object of the present invention to provide a childproof safety latch which may be easily installed on the interior of a drawer or door without the need for taking measurements. 
     
    
     
       DESCRIPTION OF THE DRAWINGS 
         [0009]      FIG. 1 : shows a perspective view of an exemplary embodiment of the first part of the latch fitting mechanism of the invention, 
           [0010]      FIG. 2 : shows a perspective view of an exemplary embodiment of a latch mechanism of the invention, and 
           [0011]      FIG. 3 : shows a perspective view of an exemplary embodiment of the latch fitting mechanism and the latch mechanism of the present invention showing the fitting steps. 
       
    
    
     DETAILED DESCRIPTION 
       [0012]    The present invention is described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. This invention, may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. 
         [0013]    Referring now to  FIG. 1 , a first exemplary embodiment of a childproof latch fitting mechanism, according to the present invention, is illustrated in perspective view. The latch fitting mechanism includes a latch installation tool A 1  arranged to locate between a first latch fitting A 2  and a second latch fitting C 1 . Referring to  FIG. 2 , the latching member B 1  includes a cantilever member B 3  with a hollow or holed section B 2  at its remote end, preferably but not limited to moulded of a resilient plastic. The childproof latch may be attached to the inner surface of a drawer to restrict the amount that the drawer may be easily opened. (A maximum of 30 mm is the European safety standards). The latching member B 1  may comprise any longitudinal member B 3  having a hook or detent portion B 2  for engaging the second latch fitting C 1  located on the cupboard encasement in which the drawer slides. The second latch fitting includes a protrusion or hook C 2  for locating the latching member B 1  relative to the drawer front and the top or the side of the drawer on the inside surface. Holes are provided in the first latch fitting A 2  and the second latch fitting C 1  for attachment to the inside surface of a side of the drawer or cupboard with mechanical fasteners, such as small nails or screws. Double-sided tape or hook-and-loop type fasteners, such as Velcro® may also be used. The holes are preferably at diverging angles to one another to assist in locating and securing the latch  10  to the inside of the drawer. By diverging the holes, after one nail or screw has secured the latch to the inside surface of a drawer, the other nail or screw may be driven in, and in doing so may tighten against the first. In addition, any force applied to the latch, as by opening or closing the drawer, may tighten the latch to the drawer. 
         [0014]    It is also contemplated that the latch member B 1  of the present invention is moulded such that, when fitted, the cantilever member B 3  is urged against the second latch fitting to allow the respective walls of the drawer or cupboard to be offset one from the other. 
         [0015]    The method of fitting the latch mechanism according to the invention will now be described with reference to  FIG. 3 . In a first step the second latch fitting C 1  is secured to the side wall of the cupboard or drawer carcase. In this embodiment the second latch fitting C 1  is shown being secured upwardly against the carcase wall. It should be appreciated that “laterally” and “downward” are relative terms and that the latch may be installed in a plane essentially perpendicular from that shown in  FIG. 3 , as on a cabinet door. In that case the walls would be deflected downwardly (or upwardly) and the hook portion laterally (to the horizontal). It is further contemplated that the latch of the present invention may be installed at any angle, not just in a vertical or horizontal plane, including 180° from either horizontal or vertical, and all increments in between. 
         [0016]    The second latch fitting C 1  may conveniently be attached at least initially by means of pre-applied adhesive whilst the drawer is still in place, and the cupboard filled with contents, and optionally secured with screws later. 
         [0017]    The location of the second latch fitting C 1  in relation to the carcase wall is determined by a stop p located on the installation tool A 1  when the installation tool A 1  is inserted into a slot in the second latch fitting C 1 . 
         [0018]    The first latch fitting A 2  is now located, by sliding, on the opposite end of the installation tool A 1 . The first latch fitting A 2  also has a pre-applied adhesive on its side opposite to the slide fitting to the installation tool A 1 . 
         [0019]    The drawer or cupboard door is now closed and as a consequence the inside surface of the drawer or cupboard door comes into contact with the pre-applied adhesive on the first latch fitting A 2 . Thus the first latch fitting A 2  and the installation tool A 1  become attached to the inside surface of the drawer or cupboard door. The adhesive is sufficiently strong to permit the drawer or cupboard door to be opened with the first latch fitting A 2  and installation tool A 1  still attached, the installation tool A 1  being releases from the sliding connection with the second latch fitting C 1 . 
         [0020]    Once released from the second latch fitting C 1 , the installation tool A 1  slidably falls from, or can be readily slidably removed from, the first latch fitting A 2 . The first latch fitting A 2  and the second latch fitting C 1  remain in their respective adhered positions on the respective drawer or cupboard door and carcase wall, and these are precisely correct positions for the latching member B 1  due to the corresponding dimensions of the installation tool A 1 . 
         [0021]    In the next step the latching member B 1  is slid into the first latch fitting A 2  secured in the fitted position by screws, which also pass through the first latching member A 2  into the wall of the drawer or cupboard door, which also served to more thinly affix the first latching member A 2 . Screws may now be used to additionally more firmly secure the second latch fitting C 1  to the carcase wall. Thus the latching mechanism is accurately positioned which will lead to its more effective and durable use. 
         [0022]    Thus, a childproof latch is provided which may be easily installed on the inside of a closure member without power tools or the need to measure. The latch may allow partial opening of the closure member but requires an additional actions to be carried out so that the enclosure which the member closes may be freely accessed. 
         [0023]    It should be understood that although specific embodiments of the present invention have been described herein in detail, such descriptions are for purposes of illustration only and modifications may be made thereto within the scope of the invention. 
         [0024]    The description and drawings illustratively set forth the presently preferred invention embodiment. We intend the description and drawings to describe this embodiment and not to limit the scope of the invention. Obviously, it is possible to modify these embodiments while remaining within the scope of the following claims. Therefore, within the scope of the claims one may practice the invention otherwise than as the description and drawings specifically show and describe.

Technology Classification (CPC): 4