WO2015122140A1

WO2015122140A1 - In-vehicle mounting device

Info

Publication number: WO2015122140A1
Application number: PCT/JP2015/000398
Authority: WO
Inventors: 兼二郎三原
Original assignee: 株式会社デンソー
Priority date: 2014-02-13
Filing date: 2015-01-29
Publication date: 2015-08-20
Also published as: JP2015166234A; JP6398558B2

Abstract

An in-vehicle mounting device is provided with a case (20) having a rotatable knob (convex part) (30) protruding from an instrument panel (11); and a coupling member (50) for coupling the case and a bracket (13) inside the instrument panel so that the case is fixed at a predetermined position. The coupling member has: a vehicle-side mounting part (52) to be mounted on the bracket; a case-side mounting part (51) to be detachably mounted on the case; and a coupling part (53) for coupling the vehicle-side mounting part with the case-side mounting part. The vehicle-side mounting part is connected to the coupling part in such a manner as to project from the surface of the coupling part. A fragile portion (531) is formed in the coupling part so as to surround the junction with the vehicle-side mounting part and is set so as to be damaged when an impact load greater than or equal to a predetermined value is imposed on the convex part from a driver side, thus resulting in the loss of the coupling function. This makes it possible to increase repairability after the convex part has received an impact load.

Description

In-vehicle device

Cross-reference of related applications

This application includes Japanese Patent Application 2014-25647 filed on February 13, 2014 and Japanese Patent Application 2014-2014 filed on October 1, 2014, the disclosures of which are incorporated herein by reference. Based on 202955.

The present disclosure relates to an in-vehicle device that is assembled at a predetermined position of an instrument panel (hereinafter referred to as an instrument panel) disposed in a vehicle interior.

Various in-vehicle devices such as an audio device, a navigation device, and an air conditioner are attached to the instrument panel of the vehicle. This type of vehicle-mounted device includes a case that houses an electronic circuit or the like therein, and the case often has a knob member (protrusion) that is operated by a vehicle occupant. When the knob member has a shape protruding toward the vehicle occupant and the protruding height is equal to or greater than a specified value, the knob can be used when the occupant collides with the knob member due to a vehicle collision or the like. It is required to reduce the protruding height of the member.

In response to this requirement, in Patent Document 1, in the in-vehicle device having a structure in which the support portion of the knob member is assembled to the case, when the knob member receives an impact load, the support portion is damaged and the knob member is removed from the case. It is configured to drop off.

However, the vehicle-mounted device described in Patent Document 1 does not have a structure that considers repairing the vehicle-mounted device after the knob member is dropped due to an impact load. In other words, a work for removing a part (damaged part) of the damaged support part from the inside of the case and a work for attaching a new knob member to the support part are required. Since these operations are performed by removing the case from the in-vehicle device and disassembling, it takes time and effort. Therefore, in reality, the entire in-vehicle device is replaced with a new one and restored, which may increase the cost required for restoration.

This is not limited to the knob member described above. For example, the case of the in-vehicle device has a raised portion, and the raised portion protrudes from the instrument panel to the occupant side at a height higher than a specified value. It can occur in the same way. That is, a structure that reduces the protruding height when the raised portion receives an impact load is required. And the structure which can repair a vehicle-mounted apparatus easily is desired.

JP 2004-338427 A

The present disclosure has been made in view of the above points, and an object of the present disclosure is to provide an in-vehicle device that improves the workability of restoration after a raised portion receives an impact load.

According to one aspect of the present disclosure, the in-vehicle device is assembled at a predetermined position of the instrument panel disposed in the vehicle interior. The in-vehicle device fixes the case at a predetermined position by connecting the case having a raised portion that protrudes from the instrument panel toward the vehicle occupant side, and the vehicle-side member and the case located inside the instrument panel. A connecting member. The connecting member has a vehicle-side mounting portion that is attached to the vehicle-side member, a case-side mounting portion that is detachably attached to the case, and a connecting portion that connects the vehicle-side mounting portion and the case-side mounting portion to each other. ing. The vehicle side mounting portion is connected to the connecting portion and protrudes from the surface of the connecting portion. The connection part has the weak part provided in the connection part vicinity of a connection part and a vehicle side attaching part. The fragile portion is damaged by a predetermined or more impact load applied to the raised portion from the indoor side and loses the connection between the vehicle side mounting portion and the case side mounting portion.

According to this, the impact load received by the raised portion is transmitted to the connecting member through the case. And when the applied impact load is more than predetermined, the weak part of a connection member will be damaged. The fragile portion may have a shape extending in an annular shape so as to surround the vehicle-side attachment portion or the case-side attachment portion. When the fragile portion is damaged as described above, the connection between the vehicle side mounting portion and the case side mounting portion is released. As a result, the fixing function by the connecting member, such as fixing the case at a predetermined position, is lost. Then, the entire case moves so as to sink into the inside of the instrument panel, and as a result, the raised height of the raised portion relative to the instrument panel becomes smaller.

In addition, since the connecting member breaks prior to the case, it is possible to prevent the case from being damaged, and to promote the recovery of the in-vehicle apparatus without replacing the case with a new one.

Furthermore, the case side attachment portion of the connecting member has a structure that is detachably attached to the case. Therefore, after the entire case sinks into the instrument panel as described above, a recovery operation of removing the damaged connecting member from the case and attaching a new connecting member to the case can be easily realized without disassembling the case.

As described above, according to the above disclosure, when the vehicle occupant hits the raised portion with a predetermined impact load or more, the workability improvement of the restoration of the in-vehicle device is achieved while satisfying the request to reduce the raised height of the raised portion. Can do.

The perspective view which shows the vehicle mounting position of the operation device concerning 1st Embodiment of this indication. The front view of the operation device concerning 1st Embodiment. The rear view of the operation device concerning 1st Embodiment. The perspective view which shows the back surface of the connection member of the state attached to the case concerning 1st Embodiment. FIG. 7 is an exploded cross-sectional view showing the case and the connecting member of FIG. 6. Sectional drawing which follows the VI-VI line of FIG. Sectional drawing explaining the operation | work which removes the connection member after a damage from a case in 1st Embodiment. The perspective view which shows the back surface of the connection member attached to the case concerning 2nd Embodiment of this indication. The perspective view which shows the back surface of the connection member attached to the case concerning 3rd Embodiment of this indication. The perspective view which shows the back surface of the connection member attached to the case concerning 4th Embodiment of this indication. The rear view of the operation device which concerns on 5th Embodiment of this indication. The rear view of the operation device which concerns on 6th Embodiment of this indication. The disassembled perspective view which shows the connection member and case concerning 6th Embodiment. The assembly perspective view which shows the connection member and case concerning 6th Embodiment. The perspective view which shows the structure of a part of case where the connection member concerning 7th Embodiment of this indication is attached. The perspective view which shows the structure of a part of case where the connection member concerning 8th Embodiment of this indication is attached. The perspective view which shows the connection member attached to the case concerning 9th Embodiment of this indication. The perspective view which shows the back surface of the connection member attached to the case concerning the modification of this indication. Sectional drawing of a case and a connection member shown in FIG.

Hereinafter, a plurality of modes for carrying out an operation device (on-vehicle apparatus) according to the present disclosure will be described with reference to the drawings. In each embodiment, portions corresponding to the matters described in the preceding embodiment may be denoted by the same reference numerals and redundant description may be omitted. In each embodiment, when only a part of the configuration is described, the other configurations described above can be applied to other portions of the configuration.
(First embodiment)
FIG. 1 is a perspective view of an instrument panel (instrument panel 11) mounted on a vehicle 10 as viewed from the room 10r side. An operation device 12 (on-vehicle device) for operating the operation of the air conditioner is assembled in a central portion of the instrument panel 11 in the left-right direction of the vehicle. The operation device 12 is configured by housing various electronic components inside the case 20.

As shown in FIGS. 2 and 3, the case 20 includes a cylindrical main body case 21, a front panel 22, and a back cover 23. The front panel 22 is assembled and fixed to the main body case 21 by a snap fit or the like so as to cover an opening of the main body case 21 on the room 10r side (rear side, that is, the front side). The back cover 23 is assembled and fixed to the main body case 21 with screws 20 a so as to cover the opening on the front side (back side) of the main body case 21.

On the front panel 22, a rotary knob 30, a push button 31, and a display panel 32 are attached. The rotation knob 30 is rotated by a vehicle occupant, and the set temperature and the air volume of the conditioned air are adjusted based on the rotation operation amount. The rotary knob 30 is arranged on each of both side portions of the operation device 12 in the left-right direction of the vehicle. The push button 31 is pushed by the vehicle occupant, and switching of the air-conditioning air outlet, switching of the inside / outside air mode, and the like are set based on the operation. On the display panel 32, the contents set by the rotary knob 30 and the push button 31 are displayed.

A connector 40 is attached to the back cover 23. The operation device 12 is electrically connected to an external device such as an air conditioner or a battery through a connector 40. Further, a plurality of connecting members 50 are attached to the back cover 23. This mounting structure will be described in detail later with reference to FIGS. As shown in FIG. 3, the shape of the back cover 23 as viewed from the front is a rectangle, and the connecting members 50 are located at the four corners of the rectangle.

The connecting member 50 is also attached to the bracket 13 (vehicle side member) located inside the instrument panel 11. Therefore, the bracket 13 and the case 20 are connected by the connecting member 50. Accordingly, the case 20 is supported so that the front panel 22 is positioned at the opening 11 a of the instrument panel 11, and as a result, the operation device 12 is fixed at a predetermined position of the instrument panel 11.

The front panel 22 and the surface of the push button 31 are located on the same plane as the surface of the instrument panel 11, and when the push button 31 is pushed, it moves to the back side of the instrument panel 11 when viewed from the operator (occupant). . On the other hand, the rotary knob 30 needs to protrude by a predetermined amount (for example, 9.5 mm) or more to the near side of the instrument panel 11 when viewed from the operator so that the operator can pick it with a fingertip.

However, when the rotating knob 30 receives an impact load from the interior 10r side, such as when a part of the occupant's body hits the rotating knob 30 due to the traveling vehicle 10 colliding with an object outside the vehicle. The protrusion height of the rotary knob 30 is required to be reduced. For example, by moving the entire case 20 so as to sink from the predetermined assembly position to the back side so that the protruding height from the surface of the instrument panel 11 to the front side is less than 9.5 mm, the instrument panel of the rotary knob 30 is moved. The protrusion height with respect to 11 is made small. Nevertheless, during normal use where the impact load is not received, the case 20 is supported so as not to move only when a load less than a predetermined load is applied to the rotary knob 30.

Hereinafter, the details of the structure of the connecting member 50 will be described with reference to FIGS. FIG. 4 shows a state in which the connecting member 50 located at the lower right in FIG. 3 is attached to a predetermined position of the back cover 23. The back cover 23 is formed with a recess 23a that is recessed from the back side toward the front side. As shown by the one-dot chain line arrow in FIG. 5, the connecting member 50 is assembled into the recess 23 a from the back side.

An engaging groove 23c is formed in the recess 23a, and when the connecting member 50 is inserted into the recess 23a, the engaging portion 51a of the connecting member 50 engages with the engaging groove 23c (see FIG. 6). By this engagement, the back cover 23 is prevented from coming out of the connecting member 50 attached to the bracket 13, and as a result, the case 20 is restrained from coming out from the opening 11 a of the instrument panel 11. An insertion hole 23b for inserting a tool T (see FIG. 7) for releasing the engagement of the engagement portion 51a with the engagement groove 23c is formed in a portion of the case 20 facing the engagement portion 51a. Yes. The method of using the tool T will be described in detail later.

The connecting member 50 includes a case side attaching part 51 attached to the back cover 23, a vehicle side attaching part 52 attached to the bracket 13, and a connecting part 53 connecting these attaching

parts

51, 52. These mounting

portions

51 and 52 and the connecting portion 53 are integrally formed of resin.

The case-side attachment portion 51 has a cylindrical shape extending in the insertion direction of the connecting member 50 into the recess 23a, and the cylindrical side surface has a shape facing the side surface of the recess 23a. The engaging portion 51 a described above is formed on the cylindrical side surface of the case side attaching portion 51. The front side end surface 51b of the case side mounting portion 51 is in contact with the bottom surface 23d of the recess 23a.

The connecting portion 53 has a plate shape positioned so as to close the opening on the back side of the case side mounting portion 51. The vehicle-side attachment portion 52 has a pair of standing walls 521, a central rib 522, and an elastic piece 523 described below. The standing wall 521 and the central rib 522 have a plate shape extending from the connecting portion 53 to the back side, the pair of standing walls 521 are disposed to face each other, and the central rib 522 is located between the pair of standing walls 521. The central rib 522, the standing wall 521, the connecting portion 53, and the case side attaching portion 51 are integrally formed of resin.

When the claw portion 523a of the elastic piece 523 is engaged with the groove portion 522a of the central rib 522, the elastic piece 523 is attached to the central rib 522 and positioned between the pair of standing walls 521. The elastic piece 523 has a shape having a pair of plate portions 523p facing each other, and a protruding portion 523b and a groove portion 523c are formed on the plate portion 523p. The elastic piece 523 can be elastically deformed so that the pair of plate portions 523p approach each other. By elastically deforming in this way, the protrusion 523b can be inserted into the mounting hole 13a (see FIG. 6) of the bracket 13.

When the vehicle side mounting portion 52 is further inserted deeply so that the protruding portion 523b gets over the mounting hole 13a, the groove portion 523c fits into the mounting hole 13a. In this state, the back side end surface 521a of the standing wall 521 contacts the bracket 13, and the bracket 13 is sandwiched between the back side end surface 521a and the protruding portion 523b. Thereby, the vehicle side attachment portion 52 of the connecting member 50 is attached to the bracket 13.

In short, the case-side attachment portion 51 is attached to the case 20 by the engagement of the engagement portion 51a, and the vehicle-side attachment portion 52 is attached to the bracket 13 by the engagement of the elastic piece 523. Thereby, the connecting member 50 exhibits a fixing function of connecting the bracket 13 and the case 20 and fixing the case 20 to the opening 11a (predetermined position) of the instrument panel 11.

Now, a weakened portion 531 is formed in the connecting portion 53 of the connecting member 50. The fragile portion 531 is located at the root of the vehicle-side attachment portion 52, that is, in the vicinity of the connection portion between the vehicle-side attachment portion 52 and the connecting portion 53. The fragile portion 531 is located around the connection portion between the vehicle side attachment portion 52 and the connecting portion 53. Specifically, it has a shape extending annularly so as to surround the central rib 522 and the pair of standing walls 521 (see FIGS. 3 and 4). More specifically, the fragile portion 531 has a plurality of through holes 53a (see FIGS. 6 and 4) arranged in a ring shape on the connecting portion 53, and these through holes 53a have a predetermined pitch. Are arranged in a ring.

When an impact load exceeding a predetermined value is applied to the rotary knob 30 from the vehicle occupant side, the impact load propagates from the rotary knob 30 to the connecting member 50 via the case 20. Specifically, an impact load is applied from the wall surface of the recess 23 a to the case-side mounting portion 51. When an impact load is applied to the rotary knob 30 in a direction perpendicular to the surface of the instrument panel 11, the impact load is mainly applied to the front side end surface 51 b of the case side mounting portion 51. On the other hand, when it is applied in an oblique direction on the surface of the instrument panel 11, the impact load applied to the side wall surface of the case-side mounting portion 51 also increases.

The strength of the connecting member 50 is designed so that the weakened portion 531 of the connecting member 50 has the lowest strength with respect to the load thus applied. The fragile portion 531 has a lower strength than at least the case-side attachment portion 51 and the vehicle-side attachment portion 52. Therefore, when the impact load is applied, the fragile portion 531 is preferentially damaged. Precisely, the joint part 53b (refer FIG. 4) located between the some through-holes 53a among the connection parts 53 breaks. As the connecting portion 53 is damaged in this way, the vehicle side attaching portion 52 and the case side attaching portion 51 are split, and the above-described fixing function of the connecting member 50 is lost.

As a result, the portion of the case 20 near the damaged connecting member 50 moves to the back as shown by the arrow Y in FIG. 6 and sinks into the instrument panel 11. As a result, the rotary knob 30 sinks into the back side together with the case 20, and as a result, the protruding height of the rotary knob 30 with respect to the surface of the instrument panel 11 becomes small.

Next, an operation procedure for recovering the operation device 12 after the above damage has occurred will be described.

First, the case 20 in a state where the fragile portion 531 is broken and not fixed is pulled out from the opening 11 a of the instrument panel 11, and the case 20 is removed from the instrument panel 11. In a state immediately after being removed in this way, a part of the split connection member 50 remains attached to the case 20 (see FIG. 7). In addition, a part of the split connection member 50 remains attached to the bracket 13.

Next, the part on the vehicle side mounting portion 52 side of the split connection member 50 is removed from the bracket 13. Specifically, the vehicle-side attachment portion 52 is pulled out from the attachment hole 13a to the near side while the elastic piece 523 is elastically deformed to release the engagement of the protruding portion 523b with the attachment hole 13a. Thereby, the operation of removing the damaged connecting member 50 from the bracket 13 is completed.

Next, the part on the case side mounting portion 51 side of the split connection member 50 is removed from the case 20. Specifically, as shown in FIG. 7, the tool T is inserted from the back side of the back cover 23 into the insertion hole 23b. Thereafter, by operating the tool T to be twisted, the case-side attachment portion 51 is pulled out from the recess 23a while releasing the engagement of the engagement portion 51a with the engagement groove 23c. Thereby, the operation of removing the damaged connecting member 50 from the case 20 is completed.

Next, a new connecting member 50 is attached to the case 20. Specifically, the case side mounting portion 51 is inserted into the recess 23a. During the insertion, the engaging portion 51a is elastically deformed, and when the case side mounting portion 51 is inserted to a predetermined position of the recess 23a, the engaging portion 51a is fitted into the engaging groove 23c. Thereby, the work of attaching the new connecting member 50 to the case 20 is completed.

Next, the case 20 with the connecting member 50 attached is inserted from the opening 11a of the instrument panel 11 to the back side. Then, the elastic piece 523 is inserted into the attachment hole 13 a of the bracket 13, and the vehicle side attachment portion 52 is attached to the bracket 13. As a result, the operation of connecting the bracket 13 and the case 20 by the connecting member 50 and fixing the case 20 to a predetermined position of the instrument panel 11 is completed. That is, the recovery of the operation device 12 is completed.

In short, the case side mounting portion 51 is configured to be detachable from the case 20. Therefore, it is possible to remove the case-side attaching portion 51 of the damaged connecting member 50 from the case 20 and attach the case-side attaching portion 51 of the new connecting member 50 to the case 20. Moreover, these removal and attachment operations can be performed without removing the rear cover 23 from the main body case 21 and disassembling it.

Further, the vehicle side mounting portion 52 is configured to be detachable from the bracket 13. Therefore, the vehicle-side mounting portion 52 of the damaged connecting member 50 can be removed from the bracket 13, and the vehicle-side mounting portion 52 of the new connecting member 50 can be attached to the bracket 13. Moreover, these removal and attachment operations can be performed from the opening 11a without removing the instrument panel 11 from a predetermined position and disassembling.

As described above, the operation device 12 according to this embodiment includes the case 20 and the connecting member 50. The connecting member 50 includes a vehicle-side mounting portion 52 that is attached to the bracket 13, a case-side mounting portion 51 that is detachably attached to the case 20, and a connecting portion 53 that connects these mounting

portions

52 and 51 to each other. The vehicle-side mounting portion 52 protrudes from the surface of the connecting portion 53 and is connected to the connecting portion 53. The connecting portion 53 has a fragile portion 531 that extends in an annular shape so as to surround the vehicle-side mounting portion 52, and the fragile portion when an impact load of a predetermined level or more is applied to the rotary knob 30 from the vehicle occupant side. The strength of the fragile portion 531 is set so that the 531 is broken.

Therefore, when an impact load exceeding a predetermined value is applied to the rotary knob 30, the load is transmitted to the connecting member 50 through the case 20, and the fragile portion 531 is damaged. Since the fragile portion 531 has a shape extending in an annular shape so as to surround the vehicle-side attachment portion 52, when the fragile portion 531 is damaged as described above, the connection between the vehicle-side attachment portion 52 and the case-side attachment portion 51 is released. . As a result, the entire case 20 moves so as to sink into the inner side of the instrument panel 11, and as a result, the protruding height of the rotary knob 30 with respect to the instrument panel 11 is reduced.

Moreover, if the impact load is less than the upper limit value, the connecting member 50 is broken in preference to the case 20, and the case 20 is not damaged. Therefore, the operation device 12 can be restored without replacing the case 20 with a new one.

Furthermore, the connecting portion 53 has a structure that is detachably attached to the case 20. Therefore, after the case 20 as a whole sinks into the instrument panel 11 as described above, the case 20 is disassembled in a recovery operation in which the damaged connecting member 50 is removed from the case 20 and a new connecting member 50 is attached to the case 20. It can be realized without.

As described above, according to the present embodiment, when the vehicle occupant hits the rotary knob 30 with a predetermined impact load or more, the workability of restoration of the operation device 12 is satisfied while satisfying the requirement to reduce the protruding height of the rotary knob 30. Improvements can be made.

Furthermore, according to the present embodiment, the connecting member 50 has the engaging portion 51 a that engages with the case 20. And the insertion hole 23b for inserting the tool T which cancels | releases the said engagement is formed in the part which opposes the engaging part 51a among the cases 20. FIG.

Therefore, after the connecting member 50 is broken, when the engaging portion 51a remains engaged with the case 20, the tool T can be inserted from the insertion hole 23b to release the engagement. Therefore, the operation | work which removes the case side attaching part 51 which is a damaged part from the case 20 can be made easy, and the workability | operativity of recovery | restoration can be improved further.

Furthermore, in this embodiment, the fragile portion 531 has a shape extending in an annular shape so as to surround the vehicle side attachment portion 52. Therefore, even when the impact load is applied obliquely with respect to the direction in which the case 20 is attached to the opening 11 a of the instrument panel 11, the probability that the annular portion of the fragile portion 531 is damaged is increased. . Therefore, it is possible to improve the certainty of reducing the raised height when the impact load is applied obliquely.

Further, in the present embodiment, the plurality of through holes 53a of the fragile portion 531 are arranged so as to surround the vehicle side attachment portion 52 with a space therebetween. Therefore, the strength of the fragile portion 531 can be easily set by changing the size and shape of the through hole 53a and the joint portion 53b. That is, it is possible to easily realize the setting of the strength of the fragile portion 531 so that the fragile portion 531 is not damaged when a shock load greater than a predetermined value is applied and is not damaged when a load less than the predetermined value is applied.
(Second Embodiment)
In the embodiment shown in FIG. 4, all the longitudinal dimensions of the through holes 53a are the same with respect to the fragile portions 531 in which the plurality of through holes 53a and the joint portions 53b are alternately arranged. Moreover, all the sizes of the joint portions 53b are the same. On the other hand, in this embodiment shown in FIG. 8, the weakened portion 531A is formed so that the longitudinal dimensions L1 and L2 of the through hole 53a are not uniform.

Here, the portion indicated by reference numeral 30a (see FIG. 2) of the rotary knob 30 has the largest protruding height. This portion is referred to as a maximum protrusion 30a in the following description. In the present embodiment, a predetermined portion (see reference L1) at a position closest to the maximum protrusion 30a in the annular weak portion 531A is formed to be more fragile than other portions (see reference L2). Specifically, the longitudinal dimension L1 of the through hole 53a located at the predetermined portion is set longer than the longitudinal dimension L2 of the through hole 53a located at the other portion.

According to this, a predetermined portion located on the upper side in FIG. 8 with respect to the vehicle side mounting portion 52 in the annular weak portion 531A is broken earlier than a portion located on the lower side. That is, not all of the plurality of joint portions 53b are damaged at the same time, and the position closest to the maximum protrusion 30a is prompted to be damaged first.

As described above, in the present embodiment, the longitudinal dimensions L1 and L2 of the through holes 53a are formed unevenly. Therefore, the entirety of the annular fragile portion 531A is not damaged at the same time, but the most fragile portion (the most fragile portion) in the fragile portion 531A is broken before the other portions. Therefore, the rotary knob 30 does not sink so as to move in parallel without changing the direction, but the portion of the rotary knob 30 closest to the most vulnerable portion sinks before the other portions. Prompted. And in this embodiment, since the position nearest to the largest protrusion part 30a is made into the most weak part among cyclic | annular weak parts 531A, the largest protrusion part 30a is encouraged to sink first. Therefore, the reaction force that the occupant receives from the rotary knob 30 can be reduced as compared with the case where the maximum protrusion 30a of the rotary knob 30 sinks after the other portion.
(Third embodiment)
In the embodiment shown in FIG. 8, the most fragile portion is formed by increasing the longitudinal dimension L1 of the through hole 53a. On the other hand, in the present embodiment shown in FIG. 9, the most fragile portion is formed in the annular fragile portion 531B by making the longitudinal dimensions L3 and L4 of the joint portion 53b nonuniform.

As shown in FIG. 9, a predetermined portion (refer to reference symbol L <b> 3) closest to the maximum projecting portion 30 a in the annular weak portion 531 </ b> B is formed more fragile than other portions (refer to reference symbol L <b> 4). Specifically, the longitudinal dimension L3 of the joint portion 53b located at the predetermined portion is set shorter than the longitudinal dimension L4 of the joint portion 53b located at the other portion.

According to this, a predetermined portion located on the upper side in FIG. 9 with respect to the vehicle-side attachment portion 52 in the annular weak portion 531B is broken earlier than a portion located on the lower side. That is, not all of the plurality of joint portions 53b are damaged at the same time, and the position closest to the maximum protrusion 30a is prompted to be damaged first. Therefore, similarly to the second embodiment, the maximum protrusion 30a is urged to sink first, so that the reaction force that the occupant receives from the rotary knob 30 can be reduced.
(Fourth embodiment)
In the present embodiment, as shown in FIG. 10, in the present embodiment, a plurality of through holes 53c and joints 53d are alternately arranged to form a fragile portion 531C. In the embodiment shown in FIG. 4, the through hole 53a is formed in a rectangular shape, whereas in the present embodiment, the through hole 53c is formed in a circular shape.

In the embodiment shown in FIG. 8, the weakest part is provided by forming the longitudinal dimensions L1 and L2 of the through holes 53a non-uniformly. On the other hand, in this embodiment, the weakest part is provided by forming the diameters L5 and L6 of the through holes 53c non-uniformly. Also in this embodiment, the same effect as that of the embodiment shown in FIG. 8 is exhibited.
(Fifth embodiment)
In the embodiment shown in FIG. 3, fragile portions 531 are formed on all of the plurality of connecting members 50 provided on the back cover 23. On the other hand, in this embodiment, as shown in FIG. 11, the weakened portion 531 is formed in the predetermined connecting member 50, but the weakened portion 531 is not formed in the other connecting member 50A. The predetermined connecting member 50 is located closer to the maximum protrusion 30a than the other connecting members 50A. The structure of the other connecting member 50A is the same as that of the predetermined connecting member 50 except that the weakened portion 531 is not formed.

As described above, according to the present embodiment, not all of the plurality of connecting

members

50 and 50A are damaged, but the predetermined connecting member 50 located closest to the raised portion is damaged. Alternatively, there is a higher possibility that the predetermined connecting member 50 is damaged earlier than the other connecting members 50A. For this reason, the case 20 does not sink so as to move in parallel without changing the direction, but the portion of the rotary knob 30 close to the predetermined connecting member 50 sinks before the other portions. Is prompted. And in this embodiment, since the weak part 531 is formed in the connection member 50 located near the largest protrusion part 30a, it is encouraged that the largest protrusion part 30a sinks first. Therefore, the reaction force that the occupant receives from the rotary knob 30 can be reduced as compared with the case where the maximum protrusion 30a of the rotary knob 30 sinks after the other portion.
(Sixth embodiment)
In the first embodiment, when the connecting member 50 is attached to the recess 23 a of the case 20, the connecting member 50 is attached from the back side to the near side of the case 20. In other words, the sinking direction Y (see FIG. 6), which is the direction in which the connecting member 50 is damaged and the case 20 sinks inward, is parallel to the mounting direction of the connecting member 50. In other words, the direction perpendicular to the back cover 23 and the mounting direction of the connecting member 50 coincide.

On the other hand, in the present embodiment, as shown in FIGS. 12 to 14, the connecting member 50 is attached from the side of the case 20. That is, the sinking direction Y (see FIG. 14) when the connecting member 50 is damaged and the case 20 sinks to the back side intersects with the attaching direction Yin (see FIG. 13) of the connecting member 50. In other words, the direction perpendicular to the back cover 23 and the mounting direction of the connecting member 50 intersect. The sinking direction Y due to the impact load is perpendicular to the mounting direction Yin. The attachment direction Yin is parallel to the surface of the back cover 23.

More specifically, the back cover 23 is formed with a notch 231a (dent) extending from the end surface of the back cover 23 in the mounting direction Yin. A portion of the back cover 23 where the notch 231a is formed is referred to as a notch forming portion 231b. In other words, the case 20 is provided with a notch forming portion 231b formed in an opening shape by a notch 231a formed on the end surface of the case 20. The connecting member 50 is configured to include a case side attaching portion 510 and a vehicle side attaching portion 52 and a connecting portion 53 having the same structure as that of the first embodiment. The case-side attachment portion 510 includes an attachment groove 510a extending in the attachment direction Yin and a pair of

guide portions

510b and 510c that form the attachment groove 510a.

When the case side mounting portion 510 is fitted into the notch 231a by sliding in the mounting direction Yin, the state shown in FIG. 14 is obtained, and the mounting of the connecting member 50 to the case 20 is completed. In this attachment completion state, the

guide portions

510b and 510c are engaged with the notch forming portion 231b. By this engagement, the relative movement of the connecting member 50 in the sinking direction Y with respect to the case 20 is restricted. However, when an impact load described later is applied, the

guide portions

510b and 510c are damaged, and the function of the engagement is lost.

In the state where the operation device 12 is attached to the opening 11 a of the instrument panel 11, the instrument panel 11 is sandwiched between the opening end surface forming the opening 11 a and the case 20. Therefore, the relative movement of the connecting member 50 in the attachment direction Yin with respect to the case 20 is restricted. Therefore, the connecting member 50 is prevented from coming off from the notch 231a.

As described above, the case-side attachment portion 510 is attached to the case 20, and the vehicle-side attachment portion 52 is attached to the bracket 13 by the engagement of the elastic piece 523 in the same manner as in the first embodiment. Thereby, the connecting member 50 exhibits a fixing function of connecting the bracket 13 and the case 20 and fixing the case 20 to the opening 11a (predetermined position) of the instrument panel 11.

The fragile portion 531D formed in the connecting portion 53 is a portion surrounded by an alternate long and short dash line in FIG. 14, and includes a through hole 53a and a joint portion 53b as in the first embodiment. However, the fragile portion 531 of the first embodiment has a shape that extends in an annular shape so as to surround the vehicle-side attachment portion 52, whereas the fragile portion 531D according to the present embodiment abolishes the shape that extends in an annular shape as follows. is doing. That is, the fragile portion 531D is formed in a shape extending linearly so as to be located on both sides of the vehicle-side attachment portion 52 so as to sandwich the vehicle-side attachment portion 52 in the connection portion 53 and to cross the connection portion 53. Yes. In other words, the fragile portion 531D is formed in a shape extending linearly from the first end surface 53e of the connecting portion 53 to the second end surface 53f. The direction in which the fragile portion 531D extends is parallel to the attachment direction Yin. The fragile portion 531D is formed on both sides of the vehicle side mounting portion 52 in the connecting portion 53. The fragile portion 531D is formed in a portion of the connecting portion 53 between the vehicle side attachment portion 52 and the case side attachment portion 510.

When an impact load exceeding a predetermined value is applied to the rotary knob 30 from the vehicle occupant side, the impact load propagates from the rotary knob 30 to the connecting member 50 via the case 20. Specifically, an impact load is mainly applied from the notch forming portion 231b to the

guide portions

510b and 510c. The strength of the connecting member 50 is designed so that the weakened portion 531D has the lowest strength with respect to the load applied in this manner. Therefore, when the impact load is applied, the fragile portion 531D is preferentially damaged. Precisely, in the connecting portion 53, the joint portion 53b located between the plurality of through holes 53a is damaged. As the connecting portion 53 is damaged in this way, the vehicle side attaching portion 52 and the case side attaching portion 51 are split, and the above-described fixing function of the connecting member 50 is lost.

As a result, a portion of the case 20 near the damaged connecting member 50 moves to the back side as shown by an arrow Y in FIG. 14 and sinks into the instrument panel 11. As a result, the rotary knob 30 sinks into the back side together with the case 20, and as a result, the protruding height of the rotary knob 30 with respect to the surface of the instrument panel 11 becomes small.

Next, an operation procedure for recovering the operation device 12 after the occurrence of the damage will be described focusing on differences from the first embodiment.

First, the case 20 is removed from the instrument panel 11. Next, a part of the split connection member 50 on the vehicle side attachment portion 52 side is removed from the bracket 13. Next, the part on the case side mounting portion 510 side of the split connection member 50 is removed from the case 20. Specifically, the

guide portions

510b and 510c are pulled out from the notch 231a in the direction opposite to the mounting direction Yin and removed.

Next, a new connecting member 50 is attached to the case 20. Specifically, the case side mounting portion 510 is fitted into the notch 231a in the mounting direction Yin. Thereby, the work of attaching the new connecting member 50 to the case 20 is completed.

As described above, the case-side mounting portion 510 according to the present embodiment has a structure that is slid and inserted into the case 20. And the direction (attachment direction Yin) of slide insertion is set to the direction which cross | intersects with respect to the direction where an impact load is provided to the rotary knob 30 (protrusion part). Therefore, the operation of removing the damaged connecting member 50 from the case 20 only needs to be performed by sliding the case-side attachment portion 510 from the notch forming portion 231b and removing the tool T shown in FIG. Therefore, the operation of removing the damaged connecting member 50 from the case 20 can be facilitated.

Further, according to the present embodiment, the fragile portion 531D is located on both sides of the vehicle side mounting portion 52 so as to sandwich the vehicle side mounting portion 52 among the plate end surfaces of the connecting portion 53, and extends across the plate end surface. It is formed in the shape extended in a shape. Therefore, since it is unnecessary to form the fragile portion in a shape surrounding the vehicle-side mounting portion 52 in an annular shape, the connecting portion 53 can be reduced, and the connecting member 50 can be downsized.
(Seventh embodiment)
In the said 6th Embodiment, the notch formation part 231b which engages the connection member 50 is provided in the back cover 23, and the notch formation part 231b is located inside the main body case 21 which is cylindrical shape. In contrast, in the present embodiment, the notch forming portion 231 b is provided on the outer surface of the main body case 21, and the notch forming portion 231 b is located outside the main body case 21.

However, the notch forming portion 231b is located inside the opening 11a of the instrument panel 11. That is, the notch forming portion 231b is formed in a portion of the main body case 21 that is recessed inside the cylinder. Therefore, when the case 20 is inserted into the opening 11 a and the operation device 12 is attached to the instrument panel 11, the notch forming portion 231 b can be prevented from interfering with the instrument panel 11.

A rib member 231c that reinforces the notch forming portion 231b is formed on the outer surface of the main body case 21. Thereby, the strength of the notch forming portion 231b and the rib member 231c with respect to the impact load is made higher than the strength of the fragile portion 531D.

In the sixth embodiment shown in FIG. 13, the connecting member 50 is in a state in which the case side mounting portion 510 is in contact with the end surface located on the far side in the mounting direction Yin, of the portion forming the notch 231 a of the back cover 23. Is attached to the case 20. On the other hand, in the present embodiment shown in FIG. 15, the connecting member 50 is attached to the case 20 in a state where the case side attachment portion 510 is in contact with the outer peripheral surface 21 a of the main body case 21.

Further, the connecting member 50 according to the present embodiment has the same structure as that of the sixth embodiment. Therefore, in the present embodiment, similarly to the sixth embodiment, the height of the bulge can be reduced when an impact load is applied, and the workability of restoration of the operation device 12 in that case can be improved.
(Eighth embodiment)
In the sixth embodiment, the connecting member 50 is sandwiched between the opening end surface of the instrument panel 11 that forms the opening 11 a and the case 20. For this reason, the relative movement of the connecting member 50 in the attachment direction Yin with respect to the case 20 is restricted. However, during the operation of attaching the operation device 12 to the instrument panel 11, the relative movement of the connecting member 50 in the attaching direction Yin is not restricted, so that the connecting member 50 may be detached from the notch 231a.

In this embodiment in view of this point, as shown in FIG. 16, the claw 231d is formed in the notch forming portion 231b. In a state where the connecting member 50 is fitted in the notch 231a, the claw 231d is engaged with the end surface on the near side in the mounting direction Yin in the guide portion 510c. This engagement prevents the connecting member 50 from being detached from the notch 231a.

When the connecting member 50 is fitted into the notch 231a, the claw 231d positioned in the mounting groove 510a is elastically deformed and widened so as to increase the distance between the pair of

guide portions

510b and 510c.

When removing the connecting member 50 damaged by the impact load from the notch 231a, the case-side attachment portion 510 is formed in a direction perpendicular to the attachment direction Yin and in a direction in which the pair of case-side attachment portions 510 are close to each other. What is necessary is just to remove from the part 231b.

The connecting member 50 according to the present embodiment has the same structure as that of the sixth embodiment. Therefore, in the present embodiment, similarly to the sixth embodiment, the height of the bulge can be reduced when an impact load is applied, and the workability of restoration of the operation device 12 in that case can be improved.
(Ninth embodiment)
In the eighth embodiment, by providing the claw 231d that engages with the connecting member 50, the connecting member 50 is prevented from being detached from the notch 231a. On the other hand, in the present embodiment, the claw 231d is eliminated, and a screw hole 510d is formed in the guide portion 510b of the connecting member 50 as shown in FIG. Then, by fastening the screw N through the screw hole 510d to the back cover 23, the connection member 50 is prevented from being detached from the notch 231a.

The preferred embodiments of the disclosure have been described above, but the disclosure is not limited to the above-described embodiments, and various modifications can be made as illustrated below. Not only combinations of parts that clearly show that combinations are possible in each embodiment, but also combinations of the embodiments even if they are not explicitly stated unless there is a problem with the combination. Is also possible.

In the embodiment shown in FIG. 4, the fragile portion 531 is formed by forming a plurality of through holes 53 a in the connecting portion 53. On the other hand, it replaces with the through-hole 53a, and the groove | channel which makes the plate | board thickness of the connection part 53 thin may be formed in the connection part 53. FIG. In this way, when the fragile portion is constituted by the groove, the plurality of grooves and the joint portions 53b may be alternately arranged, or the joint portions 53b may be eliminated and the groove may be formed in an annular shape. 18 and 19 show an example of the weakened portion 531E due to the above-described groove. The weakened portion 531E is a groove formed so that the thickness of the connecting portion 53 around the connecting portion with the vehicle-side mounting portion 52 is thinner than the other portions. In this case, the fragile portion 531E may be provided so as to continuously surround the entire circumference of the vehicle-side attachment portion 52.

Further, such a groove may be combined with the sixth to ninth embodiments. That is, it is good also considering the groove | channel which is a groove | channel which abolished the cyclic | annular form, and extends in a linear form from the 1st end surface 53e to the 2nd end surface 53f among the connection parts 53 as a weak part. Even when the fragile portion 531E is formed so that the connecting portion 53 is thinned by the groove, the strength of the fragile portion 531E can be easily set by setting the size and shape of the groove. That is, it is possible to easily realize the setting of the strength of the fragile portion 531E so that the fragile portion 531E is not damaged when a shock load of a predetermined value or more is applied and is not damaged when a load of less than a predetermined value is applied.

In the connecting member 50 shown in FIG. 6, the vehicle-side attaching portion 52 is located at the central portion of the connecting portion 53, and the case-side attaching portion 51 is located at a position surrounding the central portion of the connecting portion 53. Therefore, the fragile portion 531 is formed in an annular shape surrounding the vehicle side attachment portion 52. On the other hand, you may employ | adopt the connection member in which the positional relationship of both the

attachment parts

52 and 51 is reverse. That is, in this connecting member, the case side mounting portion 51 is located at the central portion of the connecting portion 53, the vehicle side mounting portion 52 is located at a position surrounding the central portion of the connecting portion 53, and the weak portion 531 is attached to the case side mounting. It is formed in an annular shape surrounding the portion 51.

Here, as a specific example in which the rotary knob 30 receives an impact load, in addition to the collision of the vehicle 10, an operator who installs the operation device 12 on the instrument panel 11 gives an impact load to the rotary knob 30 during the assembly. Can be mentioned. In particular, as shown in FIG. 1, when the rotary knobs 30 are arranged on both the left and right sides of the operation device 12, there is a high possibility that the rotary knobs 30 on both the left and right sides are strongly pressed simultaneously to be assembled to the instrument panel 11. Therefore, when the rotary knob 30 is disposed on both the left and right sides of the apparatus, the above-described various effects according to the present disclosure in consideration of the recovery workability are preferably exhibited. However, the rotary knob 30 is not limited to those disposed on the left and right sides of the operation device 12 or the like, and may be disposed, for example, in the center portion.

In the embodiment shown in FIG. 1, the present disclosure is applied to the operation device 12 that operates the operation of the air conditioner. However, the present disclosure may be applied to an operation device that operates the operation of the navigation device or the audio device, for example. Further, the raised portion according to the present disclosure is not limited to the rotary knob 30 that is operated to rotate, and for example, a push button switch that is operated to be pushed may be applied as the raised portion.

In the embodiment shown in FIG. 1, the present disclosure is applied to the operation device 12 operated by a vehicle occupant. However, the present disclosure is limited to the operation device 12 as long as it is an in-vehicle device assembled at a predetermined position of the instrument panel 11. Is not to be done. For example, in the embodiment shown in FIG. 1, the front panel 22 has a flat shape. On the other hand, in the case of an in-vehicle device in which the front panel 22 has a raised portion, the present disclosure can be used for reducing the protruding height of the raised portion even if no operation means such as the rotary knob 30 is provided. Can be applied.

Claims

An in-vehicle device assembled at a predetermined position of an instrument panel (11) disposed in a room (10r) of a vehicle (10),
A case (20) having a raised portion (30) raised from the instrument panel toward the vehicle occupant side;
A connecting member (50) for fixing the case to the predetermined position by connecting the vehicle side member (13) located inside the instrument panel and the case;
With
The connecting member includes a vehicle side attachment portion (52) attached to the vehicle side member, a case side attachment portion (51, 510) detachably attached to the case, the vehicle side attachment portion, and the case side attachment. A connecting part (53) for connecting the parts together,
The vehicle side mounting portion is connected to the connecting portion and protrudes from the surface of the connecting portion,
The connecting part has a weak part (531, 531A, 531B, 531C, 531D, 531E) provided in the vicinity of the connecting part between the connecting part and the vehicle-side mounting part.
The in-vehicle device in which the fragile portion is damaged by an impact load of a predetermined value or more applied to the raised portion from the indoor side and loses the connection between the vehicle-side mounting portion and the case-side mounting portion.
The in-vehicle device according to claim 1, wherein the fragile portion has a shape surrounding the vehicle-side attachment portion or the case-side attachment portion.
The connecting portion has a plate shape,
The in-vehicle device according to claim 1, wherein the fragile portion is located on both sides of the vehicle-side attachment portion so as to sandwich the vehicle-side attachment portion and extends linearly so as to cross the connection portion.
The connecting member has an engaging portion (51a) that engages with the case,
The case according to any one of claims 1 to 3, wherein the case has an insertion hole (23b) for inserting a tool (T) for releasing the engagement by the engagement portion at a portion facing the engagement portion. The vehicle-mounted device as described in one.
The case has a notch forming portion (231b) having a notch (231a) provided on an end surface of the case,
The case side mounting portion (510) has a mounting groove (510a) extending in a direction intersecting with a direction in which the impact load is applied to the raised portion,
The in-vehicle device according to any one of claims 1 to 4, wherein the mounting groove is slidably fitted in the notch of the notch forming portion in a direction in which the mounting groove (510a) extends.
The fragile portion has a plurality of through holes (53a),
The in-vehicle device according to any one of claims 1 to 5, wherein the plurality of through holes are arranged at intervals.
The in-vehicle device according to any one of claims 1 to 5, wherein the fragile portion (531E) is a groove having a thickness smaller than that of the other portion of the connecting portion.
The in-vehicle device according to any one of claims 1 to 7, wherein the fragile portion is lower in strength than at least the case-side attachment portion and the vehicle-side attachment portion.
The in-vehicle device according to any one of claims 1 to 8, wherein the weakened portion has the lowest strength among the connecting members.