FR3051310A3 - KIT FOR ATTACHING AN AMPLIFIER OR SPEAKER CHASSIS - Google Patents

Abstract

An attachment kit (1) includes a chassis (2) of a loudspeaker or amplifier, a support plate (3), and a plurality of fasteners (4) for securing the frame (2) to the support plate (3). Each device (4) comprises an intermediate plate (50), a first engagement element (6) to be engaged in a fastener (21) of the frame (2), and a second engagement element (7) to be engaged in a through hole (30) of the support plate (3). The first and second members (6, 7) are resilient engagement members and the first member (6) comprises two resilient wings projecting from the intermediate plate (50) and each having a retaining tooth projecting therefrom. outwardly to define a step which is engaged with an edge of a lug of the fastener (21) of the frame (2).

Description

KIT FOR ATTACHING AN AMPLIFIER OR SPEAKER CHASSIS

The present invention relates to a kit for attaching a chassis for loudspeakers or antenna amplifiers used for attaching a loudspeaker or amplifier to a support plate, such as for example a part of a body or a body. vehicle chassis.

Various speaker mounting systems are known, which generally include screws or bolts for attaching a speaker chassis to a support plate. Such fastening systems are inconvenient because the operator must use a tool, such as a screwdriver or wrench, to mount the speaker on the support plate and to disassemble it from the support plate.

Such a disadvantage is particularly aggravated when the loudspeaker is mounted in a vehicle. In fact, if the loudspeaker is to be removed from the vehicle for replacement or repair, it is necessary to use tools and sometimes to disassemble parts of the vehicle body to gain access to the mounting means of the vehicle. speaker. It is obvious that such an operation is complicated and time consuming.

European Patent EP1672955 discloses a loudspeaker attachment construction having fasteners for attaching the speaker frame to a plate. Each attachment device comprises a first engagement member that is engaged in a receiving section and a second engagement member that is engaged in a hole of a fixation plate. The first engagement member is attached to the speaker chassis by means of a screw which is screwed into a threaded hole of the first engagement member. The second engagement member has resilient means which pass through the hole of the plate and are engaged in the plate. A tool is required to disassemble such a speaker to loosen the screw that is screwed into the first engagement member. The object of the present invention is to eliminate the disadvantages of the prior art by providing a speaker or amplifier mounting kit that is versatile, convenient and simple to install and remove.

Another object of the present invention is to provide such a loudspeaker or amplifier mounting kit that is reliable and, at the same time, inexpensive and easy to manufacture.

These objectives are achieved by the present invention which is directed to a mounting kit used to attach a speaker or amplifier chassis to a support plate, said mounting kit comprising: a chassis of a loudspeaker or an amplifier, said frame having a plurality of fasteners having through holes, a support plate having a plurality of through holes, and a plurality of fasteners (4) for securing the frame to the support plate.

Each fastening device comprises: an intermediate plate, a first engagement member projecting from one side of the intermediate plate, to engage with said frame fastener, and a second engagement member projecting from an opposite side of the intermediate plate, to be engaged in a through hole of the support plate.

Said first and second engagement elements are elastic engagement elements which are capable of being engaged in an elastic coupling mode of coupling.

Said frame fastener comprises a flange, said through hole being formed to form an end edge.

Said first engagement member of the securing device comprises two resilient wings projecting from said intermediate plate, each resilient fin having a retaining tooth which protrudes outwardly to define a step which is engaged with said end edge of the chassis tie.

The advantages of the fixing kit according to the invention are obvious. Such a mounting kit can be easily attached to the loudspeaker or amplifier frame and to the support plate simply by pushing the fastener manually to the frame and to the support plate, so that the first and second engagement members of the fastening device are coupled to the corresponding holes and fasteners in a resiliently-shaped coupling mode.

The special configuration of the first engagement member disengages the first engagement member manually from the support frame without the use of any tools.

Each retaining tooth of each resilient fin of the first engagement member may have an external tapered surface and an internal tapered surface which are connected by an end edge such that said retaining tooth has a tapered shape with a decreasing thickness. said step at said end edge of the retaining tooth.

Said elastic fins of the first engagement element may be arranged in opposite positions with respect to an axis passing through the center of said intermediate plate and a void space may be left between said elastic fins so that the elastic vanes are adapted to bend elastically inwards.

Said second engagement member of the fastening device may comprise: a rod projecting from said intermediate plate and terminating in a head; and two resilient wings projecting from said head of the rod to said intermediate plate, each resilient fin having an end edge which is engaged by an edge of the through hole of the support plate.

Said end edge of the elastic fins of the second engagement member may be inclined relative to said intermediate plate by an angle of between 30 ° and 60 °.

Said end edge of the elastic fins of the second engagement member may have a toothed or knurled surface.

Each resilient fin of the second engagement member may have an outer tapered surface and an inner tapered surface which are connected by an end edge such that said resilient fin of the second engagement member has a tapered shape with decreasing thickness. from the head of the rod of the second engagement member to the end edge of the resilient fin of the second engagement member.

Said rod of the second engagement member may be disposed in correspondence of an axis passing through the center of said intermediate plate and said resilient wings of the second engagement member may be disposed in alignment with said resilient wings of the first engagement member .

Said frame fastener may comprise a lug projecting from the flange around said through hole, said end edge being formed in said lug.

Said lug of the frame fastener may comprise an annular rib which protrudes from the end edge of the lug so as to engage a housing formed in said step of the retaining tooth of each elastic fin of the first element of commitment.

Said attachment of the frame may have a collar provided around said through hole, said collar projecting from said flange in a direction opposite to said lug, said collar forming a seat adapted to receive said intermediate plate of the fixing device.

Additional features of the invention will become apparent upon reading the detailed description below, which refers to merely an illustrative and non-limiting embodiment, as illustrated in the accompanying drawings.

In these drawings: Figure 1 is an exploded perspective view of the loudspeaker mounting kit according to the invention, the speaker frame and the support plate being partially interrupted; Figure 2 is a sectional view of a portion of the speaker frame of Figure 1; Figure 3 is a perspective view of a fixing device of the fixing kit of Figure 1; Figure 4 is a sectional view of the fastener of Figure 3; Figure 5 is a perspective view of the fastening kit of Figure 1 in an assembled condition; Figure 6 is a view similar to Figure 5, but in the inverted position; Figure 7 is a sectional view of the fastening kit of Figure 5; Figure 8 is an exploded perspective view of the attachment kit of an antenna amplifier for a vehicle according to the invention; and Figure 9 is an upside down view of the fastening kit of Figure 8, in an assembled state.

Referring to Figures 1-7, it can be seen that the fastening kit of the invention is generally indicated with the reference numeral 1.

Referring now to Figure 1, it can be seen that the mounting kit 1 comprises: a chassis 2 of a loudspeaker, which supports a loudspeaker, a support plate 3, and a plurality of fasteners 4 for attaching the chassis 2 of the loudspeaker to the support plate 3.

Referring to Figure 2, it can be seen that the frame 2 comprises flanges 20 projecting outwardly from the frame 2. A clip 21 is provided in each flange 20 and is intended to receive the fixing device 4.

Each clip 21 comprises a through hole 22 which passes through the flange 20 to form an end edge 25. A lug 23 is provided around the hole 22 and protrudes from the flange 20 in a direction opposite to the plate. support 3. The lug 23 has a hole 24 (Figure 1) which passes through the lug 23.

The end edge 25 is defined above the lug 23. An annular rib 26 protrudes from the edge 25 of the lug 23 to form a retaining tooth.

A collar 27 is provided around the through hole 22 and projects from the flange 20 in a direction opposite to the lug 23. The collar 27 defines a seat 25a around the through hole 22 of the flange 20.

With reference to FIG. 1, it can be seen that the support plate 3 comprises a plurality of through holes 30 for receiving the fixing device 4.

With reference to FIGS. 3 and 4, it can be seen that the fixing device 4 comprises an intermediate plate 50 having an axis A orthogonal to the intermediate plate 50 and passing through the center of the intermediate plate 50.

A first engagement member 6 and a second engagement member 7 protrude in opposite directions from the intermediate plate 50.

The first engagement element 6 comprises two resilient wings 60 parallel to the axis A of the intermediate plate 50 and arranged in positions diametrically opposite to the axis A of the intermediate plate 50. In this way, a free space S is left between the two elastic fins 60, so that the elastic fins 60 can bend freely inwards in the free space S.

Each resilient fin 60 of the first engagement member 6 includes a retaining tooth 61 that protrudes outwardly to define a step 62. A groove that forms a "C-shaped" recess 68 is obtained in the step 62.

The distance between the intermediate plate 50 and the step 62 of the retaining tooth 61 is slightly greater than the height of the lug 23.

The tooth 61 of the resilient fin 60 of the first engagement member 6 has a tapered shape defined by an outer tapered surface 63 and an internal tapered surface 64 which are connected by a rounded end edge 65. Therefore, the tooth 61 has a tapered shape with a thickness decreasing towards the end edge 65 of the tooth 61.

The second engagement member 7 comprises a rod 70 which projects from the intermediate plate 50 in the direction of the axis A of the intermediate plate 50.

The rod 70 of the second engagement element 7 terminates in a head 71 which protrudes radially from the rod 70.

Two elastic fins 72 protrude from the head 71 of the rod 70 of the second engagement member 7 to the intermediate plate 50. The elastic vanes 71 of the second engagement member 7 are disposed in a diametrically opposite position with respect to the axis A of the intermediate plate 50 and substantially in alignment with the elastic fins 60 of the first engagement element 6.

Each resilient fin 72 of the second engagement member 7 has a tapered shape defined by an outer tapered surface 73 and an internal tapered surface 74 which are connected by an inclined end edge 75. The resilient fin 72 of the second element engagement 7 has a tapered shape with a decreasing thickness from the head 71 towards the end edge 75 of the resilient fin 72.

Preferably, the end edge 75 of each resilient fin 72 of the second engagement member 7 is inclined with respect to the intermediate plate 50 by an angle α of between 30 ° and 60 °.

Advantageously, the end edge 75 of each elastic fin 72 of the second engagement member 7 has a notched or knurled surface to accommodate different thicknesses of the support plate 3. The assembly of the attachment kit 1 is now be described with reference to Figures 1 and 5 to 7.

The first engagement member 6 of the fastening device 4 is inserted into the through hole 22 of the fastener 21 of the loudspeaker frame 2.

The outer tapered surface 63 of the retaining teeth 61 of the resilient fins 60 of the first engagement member 6 rubs against the inner surface of the lug 23 and the fins 60 bend resiliently inwardly. When the steps 62 of the retaining teeth 61 pass behind the annular rib 26 of the edge 25 of the lug 23 of the fastener 21 of the frame 2, the elastic fins 60 return elastically to the initial position and the annular rib 26 of the edge 25 of the lug 23 of the fastener 21 of the frame 2 is engaged inside the housings 68 of the steps 62 of the retaining teeth 61. In such a situation, the intermediate plate 50 of the fixing device 4 is arranged in the seat 25a defined by the collar 27 of the frame 2. Therefore, the fixing device 4 is firmly held in the fastener 21 of the frame 2.

The second engagement member 7 of the fastener 4 is inserted into the through hole 30 of the support plate 3. The outer tapered surface 73 of the resilient wings 72 of the second engagement member 7 rubs against the inner surface of the hole 30 of the support plate 3 and the elastic fins 72 bend elastically inwards. When the end edges 75 of the elastic vanes 72 pass beyond the hole 30 of the support plate 3, the elastic vanes 72 elastically return to the initial position and the end edges 75 of the elastic vanes 72 of the second element. 7 are stopped against the edge of the hole 30 of the support plate 3, so as to hold the support plate 3. At the same time the operation of fixing the first engagement element to the support frame and the operation fixing the second engagement element to the support plate are performed manually, without using any tools, simply by pushing the fixing device 4 manually to the chassis 2 of the speaker and pushing the fixing device 4 manually to the support plate 3.

To disengage the speaker frame 2 from the fixing device 4, it is simply necessary to push the two elastic wings 60 inward, so that the housings 68 of the steps 62 of the retaining teeth 61 are separated from the annular rib 26 of the lug 23 of the frame 2, and pull the frame 2 relative to the support plate 3. Such an operation can be performed manually, without using any tools, by maintaining the teeth retaining 61 of the two elastic fins 60 of the first engagement member 6 between the index finger and the thumb. In this way, the frame 2 of the loudspeaker is removed from the support plate 3, without leaving the fasteners 4 fixed to the frame 2 and without using any tools.

Referring to Figures 8 and 9, it can be seen that there is shown an embodiment of the present invention, wherein the frame 2 of the mounting kit is a box of an antenna amplifier for a vehicle.

In this case, the frame 2 further comprises a flange 20, a through hole 22 being formed so as to form a fastener 21 for the fastening device 4. In this case, an end edge 25 is still formed around the through hole 22 so as to maintain the elastic fins 60 of the first engagement member 6 of the fastening device 4.

Many variations and modifications can be made to the present embodiment of the invention without departing from the scope of the invention.

Claims (11)

Fixing kit (1) used for attaching a loudspeaker or amplifier frame (2) to a support plate (3), said fixing kit (1) comprising: a frame (2) of a loudspeaker or amplifier, said chassis (2) having a plurality of fasteners (21) having through-holes (22), a support plate (3) having a plurality of through-holes (30), and a plurality of fastening devices (4) for fixing the frame (2) to the support plate (3), said fixing kit (1) being characterized in that each fastening device (4) comprises: an intermediate plate ( 50), a first engagement member (6) projecting from one side of the intermediate plate (50) to engage said frame fastener (21), and a second engagement member (7) protruding from an opposite side of the intermediate plate (50) to be engaged in a through-hole (30) of the support plate (3) ), said first and second engagement members (6, 7) being resilient engagement members which are engageable in a resilient interlocking coupling mode, said frame fastener (21) comprising a flange (20), said through hole (22) being formed to form an end edge (25), and said first engagement member (6) of the fastening device (4) comprising two elastic fins (60) protruding from said intermediate plate (50), each resilient fin (60) having a retaining tooth (61) projecting outwardly to define a step (62) engaged with said edge end (25) of the fastener (21) of the frame (2). 2 - Fixing kit (1) according to claim 1, characterized in that each retaining tooth (61) of each elastic fin (60) of the first engagement element (6) has an external tapered surface (63) and an internal tapered surface (64) which is connected by an end edge (65) such that said retaining tooth (61) has a tapered shape with a decreasing thickness of said step (62) at said end edge (65); ) of the retaining tooth (61). 3 - Fixing kit (1) according to one of claims 1 and 2, characterized in that said elastic fins (60) of the first engagement element (6) are arranged in opposite positions with respect to an axis ( A) passing through the center of said intermediate plate (50) and a void space (S) is left between said elastic vanes (60) so that the elastic vanes (60) are able to bend elastically inwards. 4 - Fixing kit (1) according to any one of claims 1 to 3, characterized in that said second engagement element (7) of the fastening device (4) comprises: a rod (70) projecting from from said intermediate plate (50) and terminating in a head (71); and two resilient wings (72) projecting from said head (71) of the shaft (70) to said intermediate plate (50), each elastic wing (72) having an end edge (75) which is engaged by a border of the through hole (30) of the support plate (3). 5 - Fixing kit (1) according to claim 4, characterized in that said end edge (75) of the elastic fins (72) of the second engagement element (7) is inclined relative to said intermediate plate ( 50) at an angle (a) between 30 ° and 60 °. 6 - Fixing kit (1) according to one of claims 4 and 5, characterized in that said end edge (75) of the elastic fins (72) of the second engagement member (7) has a notched surface or knurled. 7 - Fixing kit (1) according to any one of claims 4 to 6, characterized in that each elastic fin (72) of the second engagement member (7) has an outer tapered surface (73) and a surface internal tapered (74) which are connected by an end edge (75) so that said resilient fin (72) of the second engagement member (7) has a tapered shape with decreasing thickness of the head (71) from the rod (70) of the second engagement member (7) to the end edge (75) of the resilient fin (72) of the second engagement member (7). 8 - Fixing kit (1) according to any one of claims 4 to 7, characterized in that said rod (70) of the second engagement element (7) is arranged in correspondence of a passing axis (A). through the center of said intermediate plate (50) and said resilient wings (72) of the second engagement member (7) are disposed in alignment with said resilient wings (60) of the first engagement member (6). 9 - Fixing kit (1) according to any one of claims 1 to 8, characterized in that said fastener (21) of the frame (2) comprises a lug (23) which projects from the flange (20). ) around said through hole (22), said end edge (25) being formed in said lug (23). 10 - Fixing kit (1) according to claim 9, characterized in that said lug (23) of the fastener (21) of the frame (2) comprises an annular rib (26) which projects from the edge of end (25) of the lug (23) to engage a housing (68) in said step (62) of the retaining tooth (61) of each elastic fin (60) of the first element commitment (6). 11 - Fixing kit (1) according to one of claims 9 and 10, characterized in that said fastener (21) of the frame (2) has a collar (27) provided around said through hole (22), said collar (27) protruding from said flange (20) in a direction opposite to said lug (23), said flange (27) forming a seat (25a) adapted to receive said intermediate plate (50) of the fastening device (4) .