FR2632027A1 - FIXING DEVICE, PARTICULARLY FOR RECESSED APPARATUSES IN MOTOR VEHICLES - Google Patents

Abstract

Fixing device, in particular for devices to be built into motor vehicles, such as car radios, cassette players, radio transceivers, loudspeakers, characterized by a latching device comprising at least one locking arm 9 providing an elastic spring effect, belonging to a locking device and by a locking device acting at the same time as the latching device 1, causing the locking arm 9 to pivot into the latching position and keeping it in this position.

Description

1- The invention relates to a device This fixing, in particular for

  built-in appliances in motor vehicles. Fixing devices of this type, in particular m for devices to be built into motor vehicles, such as radios. cassette devices, compact disc players and the like are known. They are made of materials providing an elastic spring effect, for example spring steel. They have snap-in devices with locking notches, which engage directly with the wall of the recess opening or with a mounting frame and thus, due to the effect of

  spring, hold the device in the mounting position.

  These fixing devices have the disadvantage that it

  always produces that devices are released from their fixa-

  tions, especially in the case of vibrations occurring in motor vehicles and if we consider the increasing weight and increasing size of built-in appliances and. either fall from their embedding openings and are damaged, or come into contact with live parts close to the embedding opening. It follows that no

  only the built-in appliance, but also other components

  motor vehicle health is damaged.

  The invention therefore set itself the task of creating a

  fixing device, in particular for built-in devices

  trackable in motor vehicles, a device which, in the case of strong vibrations and even in the case of accidents, securely maintains built-in devices. so as to avoid, in a certain way, damage to the fixable device e- other components of the motor vehicle, but also a danger to the occupants of the

  vehicle by falling devices.

  This problem is solved, in the case of a fixing device of the type described above, in that there is provided a latching device comprising at least one arm.

  locking, providing an elastic spring effect,

  attached to a locking device, and a locking device

  blocking acting at the same time as the device has engaged-

  swiveling the locking arm into position

  and keep it in this position.

  The advantage of this fixing device resides in the fact that the holding forces caused by the locking device during the mounting of a device can be optimally adjusted to each mounting assembly, which

  guarantees in each case a secure hold of the device.

  We recommend an example of execution of a fixing device comprising a latching device attached to the short sides of a built-in device and which is produced essentially in a U shape. A holding arm forming the base of the latching device is basically has

  parallel to the short side of the device and the hand arm-

  Yours, perpendicular to it, is arranged parallel to the long side of the built-in appliance. This type of device

  fixing is particularly simple to mount on the device.

  An exemplary embodiment of the fixing device is preferred because it presents a latching device essentially in the shape of a U comprising a first holding arm, each of which ends from which an arm of

  holding at an angle of about 900, the first hand arm-

  yours being provided with two locking arms. By this provision-

  fixing device, the device is particularly well maintained

in the recess opening.

  On the other hand, we will recommend a fixing device comprising a blocking device which has at least one blocking lug disposed on each holding arm, lug by means of which the holding arm can pivot outwards.

  in the direction of the walls of the recess opening.

  By the fact that in addition to the locking arms, it is pivoted

  move the holding arms outwards, the device

  trable is particularly well maintained in the recess opening. Thanks to the particularly simple mounting of the fixing device, the manufacturing costs are,

more, kept very low.

  In addition, it is recommended a fixing device characterized by a locking device comprising at least one arm pivotally disposed on the built-in device. The latter is provided with a locking arm which can be engaged in the latching device, this arm, in the locking position, pivoting the locking arms so that they hook into the walls. from the recess opening or in a mounting frame for the built-in appliance. This locking device is suitable for particularly simple mounting of the built-in appliance. The arm of the locking device is placed in a first position, the unlocking position, and the built-in appliance is

  inserted into the recess opening. We then pivot

  ter the arm in the locking position, so that the locking arms are pushed back from their side by means of the corresponding locking arm and hook in the wall of the recess opening or in a mounting frame for the built-in appliance. The mounting is, likewise. very 4q 2632027 simple: You must simply rotate the arm of the locking device so that the locking arms do not

  are more engaged in the recess opening.

  Particularly recommended is a fixing for which the arms of the locking device are part of a

  support frame for the built-in appliance.

  Other advantages and forms of execution emerge from the

subclaims.

  The invention will be described below in more detail, with reference to the accompanying drawing in which: FIG. 1 is a plan view of a device a

  engagement of a fixing device.

  Figure 2 is a sectional view taken along the line

II-II of Figure 1.

  Figure 3 is a plan view of a locking device of a fixing device and Figure 4 is a sectional view taken along the line

IV-IV of figure 3.

  Figure 5 is a plan view of another example

  of execution of a fixing device comprising a device

  tif has interlocking, as well as a locking device in

unlocking position.

  Figure 6 shows another example of execution of a

  fastening device comprising a snap-on device

  ment, as well as a locking device in the locking position. Figure 7 shows another example of execution of a

  fastening comprising a latching device and a provision

  locking device in unlocking position. which is part of a flange, and Figure 8 is a side view and a plan view

of an interlocking device.

  The latching device 1 shown in FIG. 1 is essentially made in the shape of a U. It has a fixing lug 2 with fixing holes 3

  through which fastening elements can be introduced

  tion, such as screws or rivets. The mounting tab 2 is extended by a first holding arm 4, from which

  from other holding arms 5 and 6 arranged perpendicularly

  lying in the plane of the figure. It can be seen in FIG. 1 that the holding arms 4, 5 and 6 are provided, on one of their sides, with stop lugs 7 folded essentially at a right angle. From the first arm of mainzien 4. here appear two arms of

  locking 9 serving as locking devices 8, which.

  in essence are directed in the direction of the leg of

fixing 2.

  In Figure 2, we have shown the same landmarks for the same parts, so that we can do without describing these. In the sectional view, it is clear that the fixing lug 2 is offset with respect to the first holding arm 4. The fixing lug 2 is arranged substantially parallel to the first holding arm 4. It is connected with the latter by a short spacer 10, that is, by

  gasoline, arranged perpendicular to the holding arm 4 ..

  By means of this type of connection between fixing lug and support arm, optimum mobility is ensured with the effect of

  spring of the holding arm with respect to the fixing lug

  tion. The spring properties of the holding arm 4 are variable. By means of a modification of the distance between the stop cleat, e = the spacer 0. orn can diimnsinr '- the

6 - 2632027

  holding arm so that it is more or less rigid and

  adapt it to different types of devices.

  The sectional representation of FIG. 2 further shows that the locking arm 9 is slightly inclined relative to the first holding arm 4 and ends in a locking cleat 11., which is made = by bending at an angle

  right the end of the locking arm.

  The latching device is made elastic-

  ment, in a spring-like material, advantageously in

spring steel.

  Figure 3 shows a mounting flange 21 serving

  locking device for a built-in appliance. not shown

  feel, and Figure 4 shows a section along the line IV-IV.

  The mounting flange 21 is here provided with eight locking lugs four locking lugs '' 2 starting from the large side of the flange this moptage 21 and four locking lugs 23 starting from the short side. The section of the locking pins is chosen at will. To obtain sufficient robustness, we chose

here a rectangular section.

  The ends of the pins advantageously have

  a wedge or double wedge shape.

  The locking device 20 and / or the mounting flange

  21 are advantageously made of plastic.

  The function of the 2S fixing device will be explained below in more detail: The fixing device can be used for fixing various products, in particular for fixing, in motor vehicles, devices such as radios, - cassette players, compact disc players,

  d: e boosters. 'equaliz-r or similar.

7 2632027

  Built-in devices are inserted into recessed openings and must be securely held there. For this, on each of the short sides of the built-in appliance, the interlocking devices shown in FIGS. 1 and 2 have been reported, that is to say that the fixing lugs 2 are either screwed or riveted directly on the housing. the built-in appliance. It is also possible to mount the fixing lugs by spot welding. The dimensions of the latching device 1 are chosen so that the stop tabs 7 of the holding arms 4, 5 and 6 are arranged at a distance, parallel to the external edges of the built-in device or of the mounting frame. The tabs prevent the built-in appliance

  penetrates too deeply into the opening.

  When installing the device ,. they thus serve as stops. After the device comprising the latching devices has been inserted into the recess opening, the blocking device 20 or the mounting flange 21 are put in place. The locking pins 23, arranged on the short sides of the mounting flange, then exert pressure towards the outside on the locking arms 9, so that their locking arms are engaged in recesses provided in the walls of the opening. I1 as a result that the device is maintained

  securely in the mounting position.

  At the same time, the locking pins 22, 2 pivot

  ter, by moving them away from the apparatus, the holding arms 4, e and 6, so that they come into engagement with the walls of the embedding opening or with a mounting frame which

8 2632027

  is planned and also maintain the device. The internal distance of the locking lugs 22. 2 is therefore chosen so that they, at the time of introduction, come against the external wall of the built-in appliance. The movement of the holding arms 4, 5 and 6 in the locked position can be predetermined by the thickness of the locking pins: the thicker the pins, the more strongly the holding arms 4, 5 and 6 are pushed towards the outside. As a result, the holding forge can thus be adjusted to the

  size and weight of each device.

  In the embodiment shown in Figure 1, there are provided locking arms 9, the device

  locking 8, starting from the first holding arm 4. Natu-

  actually, instead of these, or in addition, it is also possible to provide locking arms on the holding arms S and

  6 arranged along the long sides of the built-in appliance.

  Corresponding recesses must then be made in

  the walls of the recess opening.

  As the holding arms of the snap-in device

  ment are made, as well as the locking arms, in

  a material providing an elastic spring effect. they pivo-

  try back to the exit position as soon as the locking device is removed. As a result, the retaining arms are released from the wall of the recess opening or from the mounting frame, and the locking tabs 11 of the arms

  locking 9 are released from the corresponding recesses.

  To facilitate the introduction of the mounting flange, the locking lugs 23 provided on the small sides of the flange can be made longer than the other lugs 22. In this way. it is ensured that the support arms S ci 2632027 and 6 do not engage early enough so that no one

  can no longer rotate the first support arm 4.

  To provide good hold, for example, to devices

  reils particularly large and / or heavy, one can provide support arms, and also additional locking arms, on the long sides of the device. These arms can be connected with the holding arms attached to the short side of the device or else be attached separately to the wall of the casing of the built-in device or to its mounting frame. We must then pr = see, on the blocking device

  or on the mounting flange. additional locking lugs

  shutters that rotate these holding and locking arms. The mounting frame 21 according to FIG. 3 can be provided, on its long sides and / or on its small parts, with recesses in which a tool used for dismantling the

  frame can be introduced. The removal of the frame and the demon-

  the device are made easier.

  In FIG. 5, the front part of a built-in device

  0 track is shown schematically in side view. We can recognize, in top view, a fixing device which has a latching device 30 as well as a device

blocking 40.

  The example of execution - of the fixing device repre-

  here is essentially made in the shape of a Y. It has a fixing lug 31, two connecting arms 32 as well as locking arms 33 which start therefrom. Between the two locking arms. the fixing lug or the link arm is folded upwards relative to the plane of the

  figure, from fagan to close a ramp & 'approach.

N 2632027

  The blocking device 40 has an arm 41 attached to the side of the built-in and pivotable device, as well as a blocking cleat 42. The device

  blocking can pivot around the axis of rotation 43.

  In the unlocked position, which is shown on the

  FIG. 5, the blocking device 40 does not touch the device

snap on 30.

  In Figure 6, we can again recognize a

  part of a built-in appliance schematically. in side view.

  The fixing device here has a latching device 30 ′ produced in the shape of a T, comprising a fixing lug 31 ′, two link arms 32 ′ as well as two locking arms 233 ′. The locking device 40 is produced in a manner identical to that shown in FIG. 5. It

  is here, anyway. in the locked position.

  The locking device 40 is placed in the locking position by a pivoting of 90th from the unlocking position. The blocking cleat 42 then engages under the connecting arms 32 ′ and / or the fixing lugs 31 ′, so that the built-in device pivots the locking arms 233 ′ by driving them outwards. In the locked position, the locking tab 42 is

  then between the built-in appliance and the device

30 '.

  It will immediately be understood that, in the case of the example of execution of FIG. 5, the locking arms 33 pivot in the same way towards the exzerieur, when the locking device 40 is tilted in the locking position, such so that the blocking cleat also gets here

  place between the built-in appliance and the device

check 30.

- And 2632027

  Figure 7 also shows a partial view of an apparatus

  recessed panel comprising a fixing device for which another form of a device has been shown

30 "engagement.

  The latching device is also provided with a fixing lug 31 ", two link arms 32" as well as two locking arms 33 ". While, in the case of the embodiment of FIG. 5, the locking arms 33 advance with respect to the connecting arms 32 in the direction of the locking device, in the case of the example of FIG. 7, an approach surface 34 "has been provided which - can be set in engagement with a locking tab 44 of a mounting frame 45E, that is to say when, the mounting frame is slid onto the built-in device, the locking tab 44 slides between the approach surface 34 "and the appliance. As a result, the built-in appliance switches to

  outside the 34 "approach surface and the locking arms

  33 "beam, so that the latter engage with the wall of the recess opening or with the frame

  and firmly hold the built-in appliance.

  With the aid of FIG. 8, the interlocking device shown in FIGS. 5 to 7 will be described in more detail. By way of example, the example of execution in form is shown here.

  of Y of the latching device.

  The latching device is made of a material

  riau providing an elastic spring effect, advantageously made of spring steel. It has a fixing lug 31a,

  carried out essentially plane, in which is here compared

  tee, for example, a fixing opening 3a. The fixing lug is extended by a connecting arm 32-a. from which the two locking arms 23a leave. On the coast view

1.2. 2632027

  of the snap-in device of figure e, we can recognize

  note that the link arm 32a has an angular deviation

  laire relative to the fixing lug 21a and has essentially an L-shaped section. The shortest part of the L-shaped connecting arm is connected with the fixing lug. It can also be seen in Figure S that the locking arm 33a has a section substantially in

  V, so as to produce a locking tab 34a.

  We can see in the representation of Figure 8 that by means of the angular deflection of the link arm 3'2a, we

  improves the spring effect of the latching device.

  A comparison of FIGS. 2 and 4 with FIGS. 5 to 7 shows that the locking device can act on the locking pins either directly or indirectly. In the case of an indirect action, the locking device exerts a force on an area of the latching device so that the locking arms pivot. In this case, the indirect socket rests on the locking arms of such

  so that these cannot be folded.

  The unlocking of the locking device described is made by means of an appropriate unlocking tool which makes it possible to pivot the locking arms backwards.

  in their initial locking position.

Claims (15)

  1. Fastening device, in particular for devices to be embedded in motor vehicles, characterized by - a device & engagement (1) comprising at least one locking arm (9), providing an elastic spring effect, belonging to a device locking device (8), and by a locking device (20) acting at the same time as the device has engaged, pivoting the locking arm (9) in the engagement position and holding it in this position.   2. Fastening device according to claim 1, characterized in that the latching device (1) is essentially U-shaped and comprises a first holding arm (4), from each of the ends from which an arm of   holding (5, 6) at an angle of about 90.   2. Fastening device according to claim 1, characterized in that the first holding arm (4) is   extended by at least one locking arm (9).   4. Fastening device according to claim ', characterized in that two locking arms (9) start from the first holding arm (4).   5. Fastening device according to claim 2,   characterized in that an interlocking device is   worn on each of the short sides of the built-in appliance, the first support arm (4) being arranged essentially parallel to the small rib and the second and the third support arm (5.6) being available ô == rn-! l ! ment paraliaes au   large upper and lower side of the built-in appliance. 14 2632027   6. Fastening device according to any one of   Claims 1 to 5, characterized by lugs (7)   suitable for holding arms (4, 5, 6), tabs which can be engaged with the edge of the recess opening or a mounting frame. 7. Fastening device according to claim 1, characterized in that the locking device (20) has at least one locking lug (22, 23) adapted to a locking arm (9) and / or to a holding arm (4, 5, 6), lug by means of which the locking arm can be tilted   (9) and / or the holding arm in the fixing position.   S. Fastening device according to claim 7, characterized in that the locking lugs (22 '. '23) are parts of a mounting flange (21) of the device built-in.   9. Fastening device according to claim 1, characterized in that the device & engagement (30, 30 ', ", 30a) has a fixing lug (31, 31', 31", 31a) from which at least leave a locking arm (33,   33 ', 33 ", 33a), advantageously two locking arms.   10. Fastening device according to claim 9, characterized in that the fixing lug (31, 31 ', 31 ", 31a)   has a link arm (32, 32 ', 32 ", 32) has essential   perpendicular to the longitudinal direction of   the mounting bracket, arm from which the locking arms extend lage (33, 33 ', 33 ", 33a).   11. Fastening device according to claim 10, characterized in that the locking arms (33, 33 ", 33a) start from the side of the link arm (32, 32", 32a), opposite   the mounting lug (231. 31 "1. 31a). 2632027   12. Fastening device according to claim 1.0.   characterized in that the locking arms (23 ') start from the same side of the link arm (32') as the fixing lug (31 ').   13. Device according to any one of claims 9 to 12. characterized by at least one fixing hole (3a) provided in the fixing lug (31a) to receive a fixing member.   14. Fastening device according to claim 9, i0 characterized in that each of the arms this locking (33a)   has a locking tab (34a).   15. Fixing device according to claim 9, characterized in that the latching device (30a) has a current fold essentially perpendicular to the longitudinal direction of the fixing tab (31a), which   is located on the side of the arms this locking (33a) -   16. Fastening device according to claim 1, characterized by a locking device (40) comprising at   at least one arm (41) pivotally disposed on the embedded device   0 trable, arm which presents a blocking cleat (42) which can engage with the latching device, cleat which, in the blocking position, causes the locking arms (3, 33 ') to tilt so that they engage in the wall of the mounting opening or in the   cS mounting address for the built-in appliance.   17. Fastening device according to claim 16, characterized in that the arm (41) is a part of a hoop   carrier for the built-in appliance.