JP4093505B2 - Assembly structure of combination switch structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides, for example, a combination switch configured by combining a switch for operating an electrical component disposed in various places of a vehicle while penetrating a shaft of a steering wheel, and an airbag system that has recently been required to be mounted. The present invention relates to an assembly structure of a combination switch structure, in which an airbag coil to be configured has a simpler structure and an assembly structure that allows easy replacement of parts.
[0002]
[Prior art]
Steering shafts connected to steering wheels in recent vehicles have come to be obliged to be mounted with combination switches that can be used to centrally control switches for operating electrical components built in various parts of the vehicle. The air bag coil which accommodates the connection cable in the spiral shape which comprises an air bag system is inserted, and it is mounted | maintained and hold | maintained.
For example, as shown in FIG. 4, the combination switch structure 2 is mounted on the steering lock mechanism unit 1 and screwed and fixed, and an airbag coil case in which an airbag connection cable is accommodated on the combination switch structure 2 The steering shaft 4 is inserted from the steering lock mechanism unit 1 through the airbag coil case 3 and assembled.
[0003]
[Problems to be solved by the invention]
By the way, the mechanically movable parts and contacts in the combination switch structure 2 are inevitably worn out or cause poor contact due to long-term use. Some need to be replaced.
Therefore, in order to take out the combination switch structure 2, first, the airbag coil case 3 must be removed.
On the other hand, these structures are incorporated into the case independently of each other, such as the steering lock mechanism unit 1, the combination switch structure 2, and the airbag coil case 3, and the cases are connected by screwing. It is the composition.
For this reason, a large installation space is required, the number of parts is large, design restrictions are imposed, and the assembly process is complicated. On the other hand, it is difficult to reduce the maintenance cost and the manufacturing cost. .
The present invention has been proposed from such a background, for example, a combination switch configured by combining a switch for penetrating a shaft of a steering wheel and operating electrical components disposed in various parts of the vehicle. And an assembly structure of a combination switch structure in which an airbag coil that constitutes an airbag system that is required to be installed in recent years has a simpler structure and an assembly structure that facilitates component replacement. With the goal.
[0004]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention is a combination of a steering lock mechanism unit that inserts a steering shaft and locks the steering shaft, and a switch that incorporates switches for operating electrical components provided in the vehicle. The steering lock mechanism comprising: a switch structure; and an airbag coil case that spirally accommodates a connection cable that is electrically connected to a fluid generating means for an airbag incorporated in a steering wheel and that constitutes an airbag system. unit, the penetration pipe near around for inserting the steering shaft, as an attachment member for holding mounting the combination switch structure, as well as extend the mounting arms and mounting struts insertion direction for inserting the steering shaft, Airbus As a mounting member for holding mounting a grayed coil case, to extend the cylindrical axis of the elongated than the mounting arm, the cylinder axis from the top in the insertion direction for inserting the steering shaft of the attachment struts, the combination switch structure, surface is divided into a first casing and the second casing, respectively to oppose detachably mounted to said mounting member, opposite the first casing and the second casing Is formed in a cylindrical inner surface in order to secure an insertion space for the steering shaft .
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, one embodiment of the assembly structure of the combination switch structure according to the present invention is shown, and will be described below with reference to the accompanying drawings.
FIG. 1 shows a combination switch structure 10 assembled by inserting a steering shaft 11 of a vehicle.
The combination switch structure 10 is attached to a steering lock mechanism unit 12 that locks the steering shaft 11, and is a connection cable that is electrically connected to gas generating means of an airbag (not shown) constituting an airbag system. Is attached to the steering lock mechanism unit 12.
[0006]
As shown in FIG. 2, the steering lock mechanism unit 12 has a pair of mounting arms 15 for mounting and holding the combination switch structure 10 in the vicinity of the periphery of the insertion pipe 14 through which the steering shaft 11 is inserted, and a mounting column. 16, a pair of cylindrical shafts 17 for mounting and holding the air bag coil case 13 is provided adjacent to the mounting arm 15, and another cylindrical shaft 18 is extended to the top of the mounting column 16. is doing.
[0007]
The combination switch structure 10 held by the pair of mounting arms 15 and the mounting column 16 in the steering lock mechanism unit 12 as described above is configured to be divided into a first casing 19 and a second casing 20. .
That is, when the first casing 19 and the second casing 20 are attached to the pair of mounting arms 15 and the mounting column 16 with the screws 21, the surfaces facing each other are formed into a cylindrical inner surface so that the insertion space of the steering shaft 11 is obtained. Is secured.
In addition, in the drawings of the first housing 19 and the second housing 20, the both sides of the lower side are in close contact with a pair of mounting arms 15 and one surface of the mounting column 16, and the screw 21 is screwed in. A pair of mounting arms 15 and mounting edges 22 and 23 are provided so as to be fixed to the mounting struts 16, respectively. The mounting strut 16 has an angled opposing surface so that the mounting edges 22 and 23 of the first and second casings 19 and 20 can be in close contact with each other.
[0008]
Here, the first housing 19 accommodates switches for operating mechanisms such as EXH & retarder, wiper, washer, hazard, into time, etc., and switches these switches in a specific direction and stroke, respectively. The operation lever 24 is provided.
On the other hand, the second housing 20 accommodates switches for operating mechanisms and functions such as turn, lane change, cornering, dimmer & passing, lighting, auto cruise, fog, and the like. An operation lever 25 is provided so that the switch is operated by the direction and stroke.
Note that the turn signal lamp blinks on the side of the second housing 20 that exhibits the cylindrical inner surface shape that opposes the first housing 19 to indicate the traveling direction when the traveling direction of the vehicle is changed. When the operated operation lever 25 is returned to the steering wheel, a cancel pin (not shown) provided on a rotor (described later) of the airbag coil case 13 that rotates following the steering shaft 11 is hit. A return lever 26 for automatically returning 25 is provided.
[0009]
The airbag coil case 13 attached to the pair of cylindrical shafts 17 and 18 in the steering lock mechanism unit 12 is configured to accommodate a belt-like cable (not shown) in a spiral shape.
That is, the airbag coil case 13 rotates concentrically with the stator at the center of the stator, the lid member 27 mounted so as to cover the stator (not shown) fixed to the pair of cylindrical shafts 17 and 18 side. And a rotor 28 that is movably mounted.
The airbag coil case 13 has a space S through which the steering shaft 11 is inserted at the center.
In the airbag coil case 13 having such a configuration, a pair of the cylindrical shaft 17 and the cylindrical shaft 18 are abutted on the lower side of the outer peripheral side surface of the lid member 27 mounted on the stator and the stator, and a pair of screws 29 are provided by screws 29. Protrusions 30a, 30b, and 30c are provided to be fixed to the cylindrical shaft 17 and the cylindrical shaft 18.
[0010]
According to the assembly structure of the combination switch structure 10 as described above, the combination switch structure 10 is not directly coupled to the airbag coil case 13, but the combination switch structure 10 and the airbag coil case. 13 is a structure that is separately attached to the steering lock mechanism unit 12, so that if the combination switch structure 10 needs to be replaced after a long period of use, the screw 21 for fixing the combination switch structure 10 is attached to a driver or the like. And can be detached from the pair of attachment arms 15 and the attachment posts 16 as the first casing 19 and the second casing 20.
Therefore, it is not necessary to remove the air bag coil case 13 as in the prior art, and the labor of the replacement work can be shortened and facilitated.
In addition, since the combination switch structure 10 and the airbag coil case 13 are separately attached to the steering lock mechanism unit 12, the mounting space can be reduced, and the number of parts can be reduced. The assembly and mounting process can be simplified.
[0011]
The assembly structure of the combination switch structure according to the present invention can be implemented as shown in FIG.
That is, in the combination switch structure 40 shown in FIG. 3, the first and second casings 40a and 40b are divided into two parts, and the first and second casings 40a and 40b are integrally formed on the top. The center casing 42 provided with the airbag coil case 41 is detachable.
[0012]
In the combination switch structure 40, the first and second housings 40a and 40b operate various electrical components in the vehicle with specific operation directions and strokes, like the first and second housings 19 and 20 described above. Operating levers 43 and 44 are provided.
The center housing 42 is formed in a box shape with notched side surfaces facing each other so as to fit and mount the first and second housings 40a and 40b. When the first and second housings 40a and 40b are fitted and mounted on the center housing 42, the contact pieces 43 projecting from the lower side surfaces of the first and second housings 40a and 40b are connected to the center housing 42. It is made to contact | abut to the L-type overhang | projection receiving part 44 provided in the side, and is fixed with a screw | thread. Note that an operation lever 44 with a turn signal lamp turned on is provided on the surface of the second housing 40b that enters the center housing 42 via the steering shaft by the return operation of the steering wheel. A return lever 45 for projecting automatically by applying a cancel pin (not shown) provided on a rotor 41 (described later) of 41 is provided.
[0013]
The airbag coil case 41 provided integrally with the top of the center casing 42 is formed of a substantially cylindrical stator 41a integrally formed with the top of the center casing 42, and a space s for inserting a steering shaft into the center. And a rotor 41b provided with the. In this figure, a belt-like cable wound around the rotor 41b and a lid member covering the stator 41a are omitted.
[0014]
As described above, if the combination switch structure 40 is assembled, the airbag coil case 41 and the center housing 42 are integrated into one structure, thereby further simplifying and saving space. In addition, when the combination switch structure 40 is replaced, the first and second casings 40a and 40b need only be removed from the center casing 42, so that maintenance work can be further saved.
[0015]
【The invention's effect】
As described above, according to the present invention, compared to the conventional structure, the combination switch and the airbag coil that constitutes the airbag system that has recently been required to be installed can be replaced more simply and with parts replacement in the combination switch. Assembling can be performed without any trouble, space for mounting around the steering shaft can be reduced, and the number of parts can be reduced, so that the assembly process and cost can be sufficiently suppressed. .
[0016]
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an external perspective view showing one embodiment of an assembly structure of a combination switch structure according to the present invention.
2 is an exploded perspective view of the assembly structure of the combination switch structure shown in FIG. 1. FIG.
FIG. 3 is a schematic exploded perspective view showing another embodiment of the assembly structure of the combination switch structure according to the present invention.
FIG. 4 is an exploded perspective view showing an example of a conventional assembly structure of a combination switch structure.
[Explanation of symbols]
10, 40 Combination switch structure 11 Steering shaft 12 Steering lock mechanism unit 13, 41 Airbag coil case 14 Insertion pipe 15 Mounting arm 16 Mounting column 17, 18 Cylindrical shaft 19, 40a First casing 20, 40b Second casing 21 Screws 22 and 23 Mounting edges 24 and 25 Operation lever 26 Return lever 27 Cover member 28 Rotor 29 Screws 30a, 30b and 30c Projection piece 41a Stator 41b Rotor 42 Center casing 43 Contact piece 44 Overhang receiving portion 45 Return lever S Space portion

Claims (1)

A steering lock mechanism unit that inserts the steering shaft and locks the steering shaft, a combination switch structure that incorporates switches for operating electrical components arranged in the vehicle, and a steering that constitutes an airbag system An airbag coil case that spirally accommodates a connection cable that electrically connects to a fluid generating means for an airbag incorporated in a wheel, and the steering lock mechanism unit is disposed around the insertion pipe that inserts the steering shaft. , as a mounting member for holding mounting the combination switch structure, as well as extend the mounting arms and mounting struts insertion direction for inserting the steering shaft, for holding attachment airbag coil case Ri as attached member, and the cylindrical axis of the elongated than the mounting arm, and extending the cylindrical axis from the top in the insertion direction for inserting the steering shaft of the attachment struts, the combination switch structure, the first housing A body and a second housing, which are detachably attached to the mounting members, respectively , and the opposing surfaces of the first housing and the second housing secure a space for inserting the steering shaft. An assembly structure of a combination switch structure characterized by being formed into a cylindrical inner surface .

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