MOUNTING DEVICE

Abstract: A mounting device (2) is disclosed for securing an object to a post comprising: (a) an abutment member (6) having a face (7) adapted to seat against the post, and arms (12), the arms slotted to receive a resiliently flexible strap; and (b) an attachment member (4) for attachment to a channel member associated with said object, the channel member having a mouth restricted by inturned lips, the attachment member (4) comprising one or more substantially flat plate portions (24) for insertion into the channel member to be retained therein by the inturned lips, and neck portions (26) to extend through the mouth of the channel, leading to head portions (16) slotted to receive the resiliently flexible strap, wherein in use the strap at the points where it passes through the slotted head portions (16) lies as close as, or closer to, the post than the points where it passes through the slots of the arms (12). Preferably, the abutment member (6) is formed integrally with the attachment member (4), simplifying manufacture and assembly of the device.

Description: MOUNTING DEVICE Field of the Invention The present invention relates to mounting devices, and more particularly to mounting devices for use in securing an object, such as a sign, to a post. Background to the Invention In an earlier patent, GB 1533412, a mounting device is disclosed comprising a saddle having a pair of opposite side members having shaped portions to seat against a post and a pair of separate attachment members loosely carried at opposite ends of the saddle between the two side members. Each attachment member is provided with a slotted head portion, connected to a stem portion, leading to an enlarged end portion lying beyond the saddle in a direction remote from the shaped portions of the side members. The rear of the object to be secured to the post is provided with a channel having a mouth with inturned lips. In use, the object is attached to the post by inserting the enlarged -ends of the attachment members into the channel, so as to engage under the inturned lips of the channel and passing strapping through the slots in their head portions. Flexing the strapping around the post and tightening it draws the saddle against the post and forces the enlarged ends of the attachment members to grip the lips of the channel, thereby fixing the sign to the post. However, the mounting device described above comprises multiple parts that need to be assembled together to provide a device which is then used to fix a sign to a post. This can be inconvenient to assemble in the field. It is also found that as the above mounting device requires a relatively large number of operations to produce and comprises multiple parts, it is somewhat expensive to make. Accordingly, there is a need for a mounting device which is cheaper to manufacture and/or easier to use. Summary of the Invention Accordingly, the present invention provides a mounting device for securing an object to a post comprising: (a) an abutment member having a face adapted to seat against the post, and arms, the arms being slotted to receive a resiliently flexible strap; and, (b) an attachment member for attachment to a channel member associated with said object, the channel member having a mouth restricted by inturned lips, the attachment member comprising one or more substantially flat plate portions for insertion into the channel member to be retained therein by the inturned lips, and neck portions to extend through the mouth of the channel, the neck portions leading to head portions, the head portions being slotted to receive the resiliently flexible strap, wherein in use the strap at the points where it passes through the slotted head portions lies as close as, or closer to, the post than the points where it passes through the slots of the arms. In one embodiment, the present invention provides a mounting device in which the attachment member and abutment member are formed integrally with each other, with the abutment member being linked to the attachment member via narrower neck portions. This means that each plate portion is bounded by one neck portion leading to the abutment member and one neck portion leading to a head portion. Preferably, there are two plate portions, making the mounting device generally -shaped. The neck portions allow the mounting device to be inserted into the channel with the head portions and the abutment member protruding from the channel. In a second embodiment, a mounting device having integrally formed abutment and attachment members is provided, in which the arms of the abutment member lead to one end of the head portions of the attachment member, with the plate portions for insertion into the channel being connected to the opposite end of the head portions by narrower neck portions. Thus, the plate portions are each connected via a single neck portion to a head portion. In a third embodiment, the abutment member and attachment member are formed separately. In this case, the plate portion of the attachment member is bounded by the narrower neck portions which locate in recesses provided in flanges on the abutment member. Strapping can then be flexed through the slots in the attachment member and abutment member, retaining the two components together ready for use. The mounting device can be punched out from sheet metal, eg stainless steel, and then folded into the appropriate conformation described above to produce the finished mounting device. In use, a resiliently flexible strap can be passed through the slots in the arms and the slots in the head portions. The plate portion(s) can be slid into the channel attached to the rear of the object, to be retained there by the inturned lips. The strap can then be flexed around the post and tightened, eg with a suitable tensioning tool. This causes the face of the abutment member to be drawn against the post and the plate portion to engage and grip the lips of the channel. Conveniently, the abutment member is shaped or formed to substantially match the shape of the post to which the object is attached. This can help to enhance the attachment of the object to the post. Preferably, the mounting device is strengthened by being swaged (eg by transverse rib formations) or otherwise formed so as to increase its resistance to distortion when the strap is tightened or when the mounting device is under load. In particular, the plate portion can be swaged to increase its resistance to distortion by the inturned lips of the channel when the strap is tightened. Preferably, the mounting device and the channel are made of materials of different hardness so that in use one of the mounting device and channel can bite into the other when the strap is tightened around the post. This is found to enhance the attachment of the mounting device to the channel. This may be accomplished by forming the neck portions so that they increase in width towards the plate portion, providing edges which can bite into the channel lips when the strap is tightened. Additionally or alternatively, the plate portion is provided with teeth on its face which in use abut the inturned lips of the channel. The teeth are adapted to bite into the inturned lips when the strap is tightened, enhancing the attachment of the plate portion to the channel. The teeth are advantageously provided towards the ends of the plate portion adjacent to the narrower neck portions connecting the plate portion to the head portions. However, the extent to which the teeth can bite into the lips of the channel is limited by the substantially flat plate portion coming into abutment with the lips of the channel. Preferably, the overall length of the plate portion(s) is less than the diameter of the post, more preferably less than equal to % of the diameter, and even more preferably less than or equal -J the diameter of the post, whereby the strap contacts more than half of the circumference of the post. This helps the mounting device resist rotation about the post when it has been secured. Preferably, the slots in the slotted portions of the attachment member in use are closer to the post than the slots provided in the arms of the abutment member. This helps to prevent the tightened strap being in a straight line as it passes through the mounting device and consequently not urging the attachment member towards the post. Brief Description of the Drawings The present invention will now be further described with reference to the accompanying figures in which: Figure 1 shows a longitudinal cross-section through a mounting device of a first embodiment of the present invention; Figure 2 shows a plan view of the device of figure 1; Figure 3 shows a cross-section taken along line A-A of figure 1; Figure 4 shows an end view of the mounting device of figure 1 in position in a channel with the channel shown in cross-section; Figure 5 shows the mounting device of figures 1 to 4 in position on a post with the channel shown in cross- section; Figure 6 shows an exploded view of a two-piece mounting device of a second embodiment of the present invention; Figure 7 shows a longitudinal cross-section through the mounting device of figure 6; Figure 8 shows a longitudinal cross-section through a mounting device according to a third embodiment of the invention; Figure 9 shows an end view of the mounting device of Figure 8; Figure 10 shows a longitudinal cross-section through a further mounting device of a first embodiment of the invention; Figure 11 shows a cross-section taken along line B-B of figure 10; Figure 12 shows an end view of the mounting device of figure 10; Figure 13 shows a longitudinal cross-section through the device of figures 10 to 12 showing the device when the strapping has been tightened; and, Figure 14 shows a blank suitable for folding into the device of figures 10 to 12. Detailed Description Referring to the drawings, figures 1 to 5 show a mounting device 2 for securing an object 1 to a post according to a first embodiment of the present invention having an abutment member 6 and an attachment member 4. The abutment member 6 comprises a face 7 having a shallow V-shape for seating against a post 8 and arms 12 provided with slots 14 to receive a resiliently flexible strap for fastening the device to the post. The attachment member 4 is adapted for attachment to a channel member 5 provided on the object, the channel member 5 having a mouth restricted by inturned lips 9. The attachment member 4 comprises two substantially flat plate portions 24 for insertion into the channel to be retained therein by the inturned lips 9, the plate portions 24 being connected to the arms 12 of the abutment member 6 via narrower neck portions 26. The plate portions 24 are also bounded at their other ends by neck portions 28 connecting the slotted head portions 16 to the plate portions 24. The head portions 16 are directed towards the post and are provided with slots 18 to receive the strap 10. Thus, the mounting device 2 can be formed as a single component, eg by punching out a blank from stainless steel and folding it into the conformation shown in the figures 1 to 5. In this embodiment, the mounting device 2 can be made by folding the blank perpendicular to the longitudinal axis of the device, ie folds along the longitudinal axis are not required. In use, the strap 10 is passed through the slots 18 in the head portions 16 and the slots 14 in the arms 12. The plate portions 24 are inserted into the channel and the strap 10 flexed around the post and tightened, eg with a suitable tensioning tool. This draws the face 7 against the post 8 and the plate portions 24 against the inside of the inturned lips of the channel. Fastening the strap 10 secures the object to the post. Figures 2 and 4 show how the mounting device can advantageously be strengthened by swaging 20 the head portions 16 and the abutment member 6. This allows the mounting device to be strengthened without substantially increasing its weight. It is also possible to swage the plate portions 24 to increase their resistance to distortion by the lips of the channel. Figures 1, 2 and 4 show how teeth 30 can be provided on the plate portions 24 to enhance the attachment between the mounting device and the channel 5. The teeth 30 are provided on the plate portions 24 so that when the strap 10 used to attach the mounting device 2 to the post is tightened, the teeth 30 bite into the inside of the inturned lips of the channel 5 (see figure 4). Additionally or alternatively, the neck portions 26 and/or 28 can be formed with radiused regions 27 to bite into the channel lips (see figures 3, 4 and 6). Figure 5 shows the mounting device in position on a square post 8. In use, the slots 14 and 18 are arranged relative to one another so that the points 40 at which the strap passes through the slots 14 lie no closer to, and preferably further than, the points 42 at which the strap passes through the slots 18. This ensures that tightening the strap 10 urges the device 2 towards the post 8.' Figures 6 and 7 show a mounting device according to a third embodiment in which the attachment member 4 and abutment member 6 are separate components adapted to slot together. Thus, the attachment member 4 comprises a single plate portion 24 bounded by neck portions 28 and having teeth 30. The neck portions 28 connect the plate portion 24 to head portions 16, which are slotted to receive the strap. The abutment member 6 comprises a face 7 for seating against a post and arms 12 extending away from the face 7. The arms are provided with slots 14 and have recesses 36 formed in flanges 37 to receive the neck portions 28 of the attachment member 4. The mounting device 2 can be inserted into a channel (not shown) with the inturned lips of the channel retaining the plate portion 24. The recesses 36 of abutment member 6 engage the attachment member 4 by locating around neck portions 28. Thus, the abutment member 6 are not retained within the channel, rather between the channel and the post. Figure 7 shows the two components 4,6 engaged together ready to receive strapping. Figures 8 and 9 show a mounting device according to the second embodiment of the invention. In this embodiment, the abutment member 6 has a face 7 having a flattened V- shape for seating against a post. The arms 12 extend away from the post, connecting to head portions 16, also slotted 18 to receive strapping, the head portions are provided with narrower neck portions 28. The neck portions 28 connect to plate portions 24, which extend in mutually opposite directions away from the centre of the abutment member 6. In use, strapping 10 is threaded through the slots 14,18 in the arms 12 and head portions 16. The strapping passes between the arms 12 and is therefore trapped between the device 2 and the post. The arrangement of plate portions 24 means that when the strapping 10 is tightened, it tends to urge the plate portions 24 against the inturned lips of the channel, thereby causing the mounting device 2 to grip the object. Figures 10 to 14 show a mounting device 2 which is a generally similar to the mounting device shown in figures 1 to 5. This mounting device 2 has an abutment member 6 having a face 7 which includes a flat portion 44. When strapping 10 is threaded through slots 14,18 provided in the arms 12 and the head portions 16, and is flexed around the post, the strapping acts against the flat portion 44, urging the mounting device into contact with the post when the strapping 10 is tightened (see figure 13). The arms 12 of the device are also provided with inturned lugs 48. The lugs 48 are arranged so that when the plate portions 24 are retained in place by the inturned lips 9 of the channel member 5 attached to an object, the lugs 48 rest on the outer surface of the lips 9 of the channel, increasing the surface of the mounting device 2 that bears against the channel 5 from that side. This helps to avoid the spread the load on the channel when the strapping 10 is tightened, helping to prevent the channel distorting. Figure 13 show the effect of tightening the strapping 10 to secure the mounting device 2 and object against the post. This causes the head portions 16 to be flexed inwardly and towards the post so that their slots 18 lie closer to the post than the slots 14 provided on the arms 12. This helps to urge the mounting device against the post. Figure 14 shows a blank, eg pressed out from sheet metal, suitable for forming in the mounting device 2 of figures 10 to 13. This figure shows an abutment member forming panel 6* and an attachment member forming panel 4'. The abutment member forming panel 6' comprises a face forming panel 7' and arms 12' , the arms 12' being provided with slots 14'. The attachment member forming panel 4' comprises two substantially flat plate forming portions 24' leading to the arms 12' of the abutment member forming panel 6' via narrower neck portions 26'. The plate forming portions 24' are also bounded at their other ends by neck portions 28' connecting the slotted head forming portions 16'. The head forming portions 16' are provided with slots 18'. This figure also shows how the face forming panel 7' and the head forming panels 16' can be strengthened by swaging 46', to increase the resistance of the finished mounting device to distortion when it is under load. In this case, the mounting device can be folded into conformation by only making folds that are substantially perpendicular to the longitudinal axis of the device.

Claims: CLAIMS ; 1. A mounting device for securing an object to a post comprising: (a) an abutment member having a face adapted to seat against the post, and arms, the arms slotted to receive a resiliently flexible strap; and (b) an attachment member for attachment to a channel member associated with said object, the channel member having a mouth restricted by inturned lips, the attachment member comprising one or more substantially flat plate portions for insertion into the channel member to be retained therein by the inturned lips, and neck portions to extend through the mouth of the channel, the neck portions leading to head portions, the head portions being slotted to receive the resiliently flexible strap. 2. A device according to claim 1 wherein in use the strap at the points where it passes through the slotted head portions lies as close as, or closer to, the post than the points where it passes through the slots of the arms. 3. A device according to claim l or claim 2 wherein the abutment member has a spaced pair of arms with their slots in register, and the attachment member has a spaced pair of head portions with their slots in register; the spacing of the head portions exceeding that of the arms,* and wherein, in use, the arms extend between the head portions,* and the strap path between the head portions is either straight or is displaced further away from the face of the abutment member. 4. A mounting device according to any preceding claim wherein the attachment member and abutment member are formed integrally with each other. 5. A mounting device according to any preceding claim wherein the abutment member connects to the plate portions via narrower neck portions so that each plate portion is bounded by one neck portion leading to the abutment member and one neck portion leading to a head portion. 6. A mounting device according to any of claim s 1-4 wherein each arm of abutment member leads to one end of a head portion of the attachment member, with the plate portions being connected to the opposite end of the head portions by narrower neck portions. 7. A mounting device according to claims 1, 2 or 3 wherein the abutment member and the attachment member are formed separately, with the plate portion of the attachment member is bounded by the narrower neck portions which locate in recesses provided in flanges on the abutment member. 8. A mounting device according to any one of the preceding claims wherein the mounting device is strengthened by being swaged or otherwise formed so as to increase its resistance to distortion. 9. A mounting device according to any one of the preceding claims wherein the mounting device and the channel are made of materials of different hardness so that in use one of the mounting device and channel can bite into the other when the strap is tightened around the pos . 10. A mounting device according to any one of the preceding claims wherein the neck portions so that they increase in width towards the plate portion, providing edges which can bite into the channel lips when the strap is tightened. RECTIFIED SHEET (RULE 91) ISA/EP

Inventors: HEARD ROBERT ARTHUR HENDERSON, WAITE TERENCE WILLIAM, HEARD, ROBERT, ARTHUR, HENDERSON, WAITE, TERENCE, WILLIAM
Applicants: HEARD ROBERT ARTHUR H, SIGNFIX LTD, WAITE TERENCE WILLIAM, HEARD, ROBERT, ARTHUR, HENDERSON, SIGNFIX LIMITED, WAITE, TERENCE, WILLIAM
Application year: 1995
Main classification: G09F7
IPC codes: G09F7