Attachment device The present invention relates primarily, though by no means exclusively, to the attachment of badges, identification cards, name plates, personal radiation dose meters and like insignia or apparatus to a garment.
Badges and the like are presently attached to garments either by means of a safety pin or spring biased clip retained upon a rear face of the badge. Safety pin type badges require the pin to penetrate into and then out of the fabric of the garment. A procedure which may be detrimental to the integrity of the garment especially if it is of a protective nature. The pin type badge is not suitable for small children and may also accidentally injure persons not familiar with the operation of such devices. The spring clip type badges require to be clipped over an edge of material, such as a lapel or pocket edge, and thus are limited to use in conjunction with appropriately tailored garments.
It is an object of the present invention to provide an improved attachment device. According to the invention there is provided an attachment device having a resiliently deformable body comprising a front face, a rear face and a peripheral edge, first and second opposing jaw members being arranged on said rear face, said jaw members being resiliently urged together into a closed position by the resilience of the body and being arranged whereby, in a open position, material can be inserted between the jaw members in a direction transverse
to the body of the badge.
The present invention thus provides a non-invasive attachment device for a badge or the like which enables said badge to be attached to a fold provided in a substantially planar expanse of material.
Preferably said body has a generally planar front face and is manufactured from a resiliently deformable material. In an alternative embodiment the body may comprise a resiliently deformable member embedded within, attached to or otherwise carried by a deformable cover member. In such an embodiment the jaw members may be defined by said resiliently deformable member .
The jaw members may comprise free ends which are urged into engagement with one another to retain material therebetween.
Preferably the free ends include a plurality of intermeshmg teeth, serration's or the like.
Said jaw members may oppose one another along a line on the rear face of the body.
Preferably said line bisects the rear face of the body.
A groove or indent projecting into the body may be provided along said line.
The ιaw members may extend fully or at least partially across the rear face of the body parallel to said line.
In use, the body may be flexed about a plane passing through the line on the rear face of the body, thereby effecting the opening of the jaw members, by holding the body at opposing points on the peripheral edge, said points being substantially perpendicular to said plane, and applying a force to the front face of the body in a direction parallel to said plane.
Embodiments of the present invention will now be described by way of example and with reference to the following drawings in which:
Fig. 1 is a perspective view of the rear face of a device according to a first embodiment of a first aspect of the present invention:
Fig. 2 is a plan view of the rear face of the device Fig 1:
Figs 3a-3b are side elevations of the device of Fig 1:
Fig. 4 is a perspective v ew of the rear face of a device according to second embodiment of a first aspect of the present invention.
Fig. 5 is a plan view of the rear face of the device of Fig 4:
Figs 6a-6b are side elevations of the device of Fig 4:
Referring firstly to Figs 1 to 3b there is shown a badge 2 comprising a body 4 having a front face 6, a rear face 8 and a peripheral edge 10. The badge 2 shown is generally circular but may be of any shape depending upon the function the badge
2 is to perform. A groove 12 is provided upon the rear face
8 of the badge 2. The groove 12 bisects the rear face 8 across its diameter. Jaw members 14, 16 are provided upon opposing sides of the groove 12 extending outwardly from the rear face
8 so as to arch over the groove 12. The jaw members 14, 16 meet above the centreline of the groove 12. The distal end of each jaw member 14, 16 is provided with a plurality of teeth
18 which mesh with those provided upon the opposing aw member
14, 16. As to whether the teeth 18 on one aw member 14 come into contact with those of an opposing jaw member 16, or are provided with a clearance as shown the accompanying figures, will depend upon factors such as the weight of the badge 2 and the material to which is to be attached. In the embodiment shown, the contact length over which the jaw members 14, 16 mesh is less than the diameter of the rear face 8. The contact length is equidistantly spaced between respective edges of the rear face 8. By reconfiguring their size and shape it is wholly possible to construct jaw members 14, 16 which extend beyond the edges of the rear face 8, are biased closer to one edge rather than another, or indeed mesh intermittently over their contact length to provide gaps between respective meshing portions
The front face 6 of the badge 2 is generally planar and able to support display means. Such means is, for example, either printed directly to the front face 6 or carried upon a sticker attached to the front face 6.
The body 4 of the badge 2 is made from a resiliently deformable material, such as a plastics material, which urges the jaw members 14, 16 into a closed position as shown in Figs 1 to 3a. The aw members 14, 16 are moved into an open position, as shown in Fig 3b, by supporting the badge 2 at apposmg points 20, 22 on the peripheral edge 10, said points 20, 22 being substantially perpendicular to the direction of the groove 12, and applying a force indicated by arrow F (see Figs 3a and 3b) to the front face 6 at a point along the line of the groove 12. The resultant flexing of the body 4 about the line of the groove 12 opens the jaw members 14, 16 and enables a fold of material 24 to be positioned therebetween. Upon release, the body 4 returns to its initial state thus gripping the fold of material 24 between the jaw members 14, 16. The material 24 may be released from the jaw members 14, 16 by repeating the above procedure and withdrawing the material 24 from between the aw members 14, 16 when they are open. In use, to conduct the above procedure, the badge 2 may be held between thumb and middle finger with the force F being supplied by the index finger. Alternatively the peripheral edge 10 may be provided with pads or grips (not shown) at points 20 and 22 extending ahead of the front face 6 to enable the jaw members 14, 16 to be opened by the application of finger pressure to these points
20 , 22 .
Figs. 4 to 6b shown an alternative embodiment of the present invention wherein the jaw members 14, 16 are provided upon a separate spring member 26 attached to the rear face 8 of the badge body 4. The spring member 26 may be manufactured from, for example, a resilient metallic material such as spring steel, while the body 4 is manufactured from a plastics material of a lesser resilient nature. The embodiment shown in Figs. 4 to 6b is operable in the same manner described above.
The embodiments hereinbefore described are given as illustrative examples and are not intended to limit the scope of the invention.