JPH0955586A - Lock mechanism for mobile bracket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock mechanism for mobile bracket which can support a front unit case stably against vibration at the time of traveling while decreasing the number of components and facilitating the mount/demount operation. SOLUTION: The rear cover 12 for a front unit case 1 is provided with an engaging recess 14, and a fitting groove 13 having a protrusion 15 to be engaged with the rear cover 12. A bracket plate 11 is provided with a leaf spring 19 to be engaged with the recess 14 of rear cover 12, and a pawl 16 to be fitted in the groove 13 of rear cover 12 and engaged with the protrusion 15. The pawl 16 of bracket plate 11 is then engaged with the groove 13 of front unit case 1 and locked by the resiliency of leaf spring 19. Consequently, the front unit case 1 is supported stably against vibration while facilitating the mount/demount operation and decreasing the number of components.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile bracket locking mechanism for engaging a front unit separated from a front unit separation type vehicle-mounted electronic device with a bracket plate for mounting in a vehicle.

[0002]

2. Description of the Related Art In-vehicle electronic device of front unit separation type For example, in a vehicle-mounted transceiver or the like in which a panel type front unit (remote controller) 1 as shown in FIG. The separated front unit case 1 was attached to the inside of the vehicle by a surface fastener and a mobile bracket 3 as shown in FIG.

That is, in the method using the surface fastener, either one of the loop-shaped surface fastener and the hook-shaped surface fastener is attached to the back surface of the front unit case 1 with a double-sided tape or the like, and the other is attached to the front unit case 1. Attach it to the door, dashboard, ceiling, etc. in the car where you want to attach the double-sided tape. Then, the hook-and-loop fasteners of the front unit case 1 are attached to the hook-and-loop fasteners attached to the door, dashboard, ceiling and the like.

To remove the front unit case 1 attached in this way, the front unit case 1
Is simply attached with a hook-and-loop fastener, so the front unit case 1 may be peeled off from the hook-and-loop fastener attached to the inside of the vehicle.

On the other hand, as shown in FIG. 7, the mobile bracket 3 is composed of a fixed frame 4 and an angle member 5 screwed to the fixed frame 4, and the fixed frame 4 has an opening in the front unit case. It is formed in such a size that the rear part of the unit 1 is fitted therein. Further, the fixing frame 4 is provided with a detachable lever 6 and a protrusion 7 for engagement. For example, the detachable lever 6 is connected to an engagement pin, and the connected engagement pin is It is urged by a spring, and the urged pin engages with a locking portion provided on the front unit case 1. Therefore, the fixed frame 4 is attached to the door around the driver's seat, the dashboard, the ceiling, etc. with screws by the angle member 5, and the front unit case 1 separated from the main body 2 as shown by an arrow 9 in FIG.
The mounting slit provided on the side surface of the fixed frame 4 is fitted into the locking projection 7 of the fixed frame 4 and fitted into the fixed frame 4,
By pushing up the lever 6 for attaching and detaching and moving the engaging pin connected to the lever 6 and fitting it into the locking portion of the front unit case 1, the front unit case 1 is fixed to the fixing frame 4 as shown in FIG. It is to be attached.

Further, in this case, in order to remove the front unit case 1 from the fixed frame 4, the detaching lever 6 is pushed up to release the engagement between the engaging pin and the engaging portion, and the arrow 9'in FIG. As shown in, front unit case 1
It can be removed by pulling out from the fixed frame 4.

In the figure, reference numeral 8 is a clip for holding a microphone cord, and reference numeral 8'is a spacer.

[0008]

However, in the method of using the above-mentioned surface fastener, the surface fastener only fixes the front unit case by the engagement of the loop-shaped surface fastener and the hook-shaped surface fastener. However, there is a problem in that the engagement is weakened and disengaged due to vibrations constantly applied from the running vehicle, resulting in lack of stability.

Further, in the mounting method using the mobile bracket composed of the above-mentioned fixing frame, since small mechanical parts such as a detachable lever, a spring, an engaging pin, etc. are required as a movable member for fixing the front unit case, the parts are There is a problem that the score increases. for that reason,
There is a problem that the cost of parts increases and the assembly cost for assembling them increases.

Further, in the method of using this bracket, the front unit case must be removed while pushing down the engaging lever, and since the operation cannot be performed with one hand, the attachment / detachment cannot be carried out easily, resulting in poor operability. There's a problem.

Therefore, an object of the present invention is to stably support a front unit such as a front unit case against vibrations during traveling, etc. Also, the number of parts is small and the operability can be easily attached and detached. Is to provide a good mobile bracket locking mechanism.

[0012]

In order to solve the above-mentioned problems, according to the present invention, on the back surface of the front unit case,
Engagement recesses and fitting grooves in which projections for engagement are formed are provided on both sides of the back surface provided with the recesses for engagement and opposite to each other on the opposite sides, while the bracket is provided. On both sides of the plate facing each other, there are provided tabs which are fitted into grooves provided on the back surface of the front unit case and which engage with the projections for locking the grooves, and the bracket plate provided with the tabs. A leaf spring that engages with a recess provided on the back surface of the front unit case is provided, one end of the leaf spring provided on the bracket plate is attached to the bracket plate, and the other end is raised obliquely from the bracket plate. When the tabs on both sides are fitted along the grooves for fitting on the back surface of the front unit case, the other ends of the raised parts come into contact with the recesses for engagement formed on the back surface of the front unit case. Uni wherein the fitting direction parallel to the front unit case is had adopted a structure which is arranged on the bracket plate.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a lock mechanism for a mobile bracket according to the present invention, wherein the lock mechanism of the present invention is mounted on a vehicle so that a panel type front unit case (remote controller) 1 can be separated from a main body case 2. It is applied to the transceiver of.

As shown in FIG. 1, this lock mechanism is composed of a front unit case 1 and a bracket plate 11 fitted in the front unit case.

The front unit case 1 is composed of a front case 10 and a back cover 12 attached to the front case 10. The back cover 12 has grooves 13 for fitting on both sides and a fitting part for fitting the grooves 13. A recess 14 is formed substantially in the center of the back cover 12 having the groove 13 formed therein.

That is, as shown in FIG. 1, the fitting groove 13 has a total of four protrusions 15 at two positions above and below the opening into which the back cover 12 of the case 10 is fitted, Forming the locking projections 15 on both sides of the back lid 12 by recessing two longitudinal sides of the back lid 12 corresponding to the four projections 2 at two locations in total, four locations in total. The holding groove 13 'is formed by the holding portion 13' and the fitting portion 13 "in which the opening is wide.

The central recess 14 of the back cover 12 is a rectangular recess 14 formed in parallel with the groove 13. As shown in FIG. 1, a step is formed in the recess 14 formed in parallel, and the step forms an engaging portion in the recess 14. The function and effect of this engaging portion will be described later.

On the other hand, the bracket plate 11 is the case 1
It is composed of a rectangular plate having a width substantially equal to 0, and engaging tabs 16 are provided at four corners of the side of the rectangular plate in the longitudinal direction. As shown by the arrow in FIG. 1, the claw is formed by bending an engaging piece outward to form a locking portion 17, and bending one end of the bent locking portion 17 inward to form a stopper 18. The size of the tab 16 is slightly smaller than the opening of the fitting groove 13 formed in the front unit case 1.

The distance between the tabs 16 provided on one side in the length direction of the bracket plate 11 is such that the fitting groove 13 and the groove 13 provided in the front unit case 1 are provided.
It is formed so as to have the same interval as the interval with.

Therefore, as shown in FIG. 2, the claw 16 of the bracket plate 11 is fitted into the fitting portion 13 "of the fitting groove 13 of the front unit case 1 (at this time, the stopper 18 of the claw 16 is inserted into the groove 13). When it is slid toward the holding portion 13 ', the end of the protrusion 15 of the holding portion 13' of the groove 13 and the stopper 18 of the claw 16 come into contact with each other, and the protrusion of the groove 13 15 and the locking portion 17 of the claw 16 are engaged with each other as shown in FIG. 3, and the bracket plate 11 locks the front unit case 1.

Further, the bracket plate 11 is provided with a plate spring 19 substantially in the center of the plate body in the width direction, and the plate spring 19 provided at the center of the plate plate has one end as shown in FIG. It is attached to the plate surface of the plate 11, and the other end is raised obliquely from the plate surface. The rising direction of the other end of the raised leaf spring 19 is attached so as to be parallel to the fitting direction of the bracket plate 11 described above. Therefore, when the tabs 16 of the bracket plate 11 are fitted and fitted in the fitting grooves 13 of the front unit case 1, the other end of the leaf spring 19 is engaged with the fitting recess 14 on the back surface of the front unit case 1. It is supposed to be placed in.

Further, the leaf spring 1 thus started up
The tip of the other end of 9 is curved, and the joint surface 20
The joint surface 20 enables smooth engagement between the rear surface of the front unit case 1 and the recess 14 and release of the engagement from the recess 14.

In the figure, reference numeral 21 is a mounting hole having a thread groove formed therein, and reference numeral 22 is a mounting hole for wood screws. Further, by providing these mounting holes 21 and 22, the bracket plate has an embossed structure in which the central portion is recessed, and the mounting holes 21 and
In order to fix the screw to the screw 22, the end of the screw to be inserted or the head of the inserted wood screw is prevented from protruding.

This embodiment is configured as described above. Next, the lock mechanism of the mobile bracket will be described by describing how to attach the front unit case 1 to the bracket plate 11.

In this mounting, first, the bracket plate 11 is mounted in the vehicle for mounting the front unit case 1. For this attachment, the bracket plate 11 may be attached directly to a door or a dashboard with wood screws or the like, but in this embodiment, a case where the bracket plate 11 is attached to a console in the vehicle by the TV stand S shown in FIG. 1 will be described. . That is, the TV stand S is attached to a console or the like in the vehicle, and the fixing screw of the attached stand S is screwed into the mounting hole 21 provided with the thread groove of the bracket plate 11 to be mounted.

At this time, as to the mounting direction of the bracket plate 11, as shown in FIG. 1, the stopper 18 of the tab 16 of the bracket plate 11 is inserted into the groove 13 for fitting so that the front unit case 1 is not inverted. Mount so that it is located on the 13 "side.

In this way, the rear surface of the front unit case 1 is pressed against the bracket plate 11 attached to the stand S, and the groove 13 of the front unit case 1 is resisted against the leaf spring 19 of the bracket plate 11. The tab 16 of the bracket plate 11 is fitted into the fitting portion 13 ″. At this time, the joint surface 20 at the tip of the leaf spring 19 fits into the recess 14 on the back surface of the front unit case 1 as shown in FIG. As shown in FIG. 2, the front unit case 1 is slid in the arrow direction until the stopper 18 of the claw 16 fitted in the fitting portion 13 ″ of the groove 13 comes into contact with the projection 15 of the groove 13. ,
The locking portion 17 of the claw 16 engages with the holding portion 13 ′ of the groove 16. At this time, the joint surface 20 at the tip of the leaf spring 19 advances into the step of the recess 14 on the back surface by the slide, and the step of the recess 14 restricts the slide in the opposite direction.

At the same time, the leaf spring 19 presses the claw 16 of the bracket plate 11 against the projection 15 of the groove 13 by spring pressure, so that the front unit case 1 and the bracket plate 1
It is possible to attach the front unit case 1 to the stand S as shown in FIG.

As described above, in this lock mechanism, the step of the recess 14 provided in the front unit case 1 and the leaf spring 1 are prevented.
It is possible to prevent the front unit case 1 from sliding in the reverse direction (disengagement direction) by means of 9 and at the same time prevent rattling due to the spring pressure of the leaf spring 19. Therefore, for example, even if vibrations due to running of the vehicle are applied, the vibrations can be absorbed and the front unit case 1 can be stably supported.

On the other hand, when the front unit case 1 is detached from the bracket plate 11, the front unit case 1 is slid in the opposite direction so that the tab 16 of the bracket plate 11 causes the fitting portion 13 of the groove 13 to be inserted. ”
When it is pulled back to the position, the front unit case 1 is lifted by the spring pressure of the leaf spring 19 and the tab 16
And the groove 13 is disengaged. Therefore, the front unit case 1 can be removed by removing the lifted front unit case 1. Therefore, the removal can be easily performed with one hand. At this time, by bending the joining surface 20 at the tip of the leaf spring 19, the leaf spring 19 can easily pass over the step of the recess 14 of the back cover 12.

As described above, this locking mechanism employs a mechanism for locking by the spring pressure of the leaf spring 19, so that the front unit case 1 can be attached to and detached from the bracket plate 11 only by sliding the front unit case 1. It can be done with one touch. Further, since no accessory is required and the number of parts is small, the cost can be reduced. Furthermore, since the number of parts is small and there are almost no moving parts, there are few failures.

In the embodiment, the on-vehicle transceiver of the front unit separation type is described, but the present invention is not limited to this, and other than this, this locking mechanism includes a main body case such as a car audio and a front unit. It can be applied to all devices that can be separated from the case.

[0034]

According to the present invention, which has the above-described structure, the front unit case is provided with the engaging recess on the rear surface and the engaging grooves on both sides of the rear surface, and the leaf spring engages with the engaging recess. Since the fitting groove and the fitting tab are provided on the bracket so that the front case unit can be locked by the elastic force of the leaf spring provided on the bracket, the front unit can be stably supported against vibration. Also, at that time, since the front case unit is locked by the elastic force of the leaf spring, it is easy to attach and detach, the operability is good, and the number of parts can be reduced, so that the mobile bracket can be manufactured at low cost. Can provide a locking mechanism for the.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment.

FIG. 2 is an operation explanatory view for explaining an engaged state of the embodiment.

FIG. 3 is an operation explanatory view for explaining an engaged state of the embodiment.

FIG. 4 is an operation explanatory view for explaining an engaged state of the embodiment.

FIG. 5 is a perspective view showing an engaged state of the embodiment.

FIG. 6 is a perspective view of a conventional example.

FIG. 7 is a perspective view of a conventional example.

FIG. 8 is an operation explanatory view for explaining an engagement state of a conventional example.

FIG. 9 is an operation explanatory view for explaining an engagement state of a conventional example.

[Explanation of symbols]

 1 Front unit case 11 Bracket plate 12 Back cover 13 Groove for fitting 14 Recessed portion 16 Claw 19 Leaf spring

Claims (1)

[Claims] 1. A mobile bracket lock mechanism for engaging a separated front unit case of a front unit separation type vehicle-mounted electronic device and a bracket plate used for mounting the front unit case in a vehicle, wherein: On the back surface of the front unit case, on the opposite sides of the back surface where the recess for engagement and the recess for engagement are provided, on the opposite sides, in parallel with the both sides, and for the fitting for forming the engaging projections. Grooves are provided. On the other hand, on both sides of the bracket plate facing each other, there are provided claws that are fitted into the grooves provided on the back surface of the front unit case and that engage with the projections for locking the grooves. The plate spring provided on the bracket plate is provided with a plate spring that engages with the recess provided on the back surface of the front unit case, and the plate spring is provided on the bracket plate. One end is attached to the bracket plate, the other end is obliquely raised from the bracket plate, and the raised other ends are fitted with the claws on both sides along the groove for fitting on the back surface of the front unit case. At this time, a lock mechanism for a mobile bracket, which is arranged on a bracket plate in parallel with a direction of fitting into the front unit case so as to come into contact with a recess for engagement formed on the back surface of the front unit case.