JPH0592984U - Reversible temporary fixing structure for vehicle air bag energization device - Google Patents

Abstract

(57) [Summary] [Purpose] The provision of the temporary energization state for the vehicle air bag power supply device was made possible only by rotating the steering wheel of the vehicle. [Structure] In a hollow ring-shaped main body composed of a ring-shaped case fixed to the steering column side and a cylindrical rotor fixed to the handle side, a spirally-shaped tabular cord is attached to the handle. In a vehicle air bag energization device housed so as to be able to follow a turning operation, a sliding groove (12) of a constant width is provided in the outer peripheral surface of the upper surface of the rotor in the radial direction, and the sliding groove (12) is provided at a neutral position. A matching lock groove (3) is provided on the inner peripheral surface of the case, and the rotor is slid so that the tip of the stopper, the tip of which is formed in a plane arc shape (5) or a C-shape, faces the lock groove of the case. It is characterized in that the movable groove is provided so as to be reversibly slidable and temporarily fixed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention is a reversible temporary fixing of an energization device used for transmitting and receiving an electric signal between a steering wheel having a limited number of rotations and a steering column, such as a steering device for a vehicle equipped with an airbag. It is about structure.

[0002]

[Prior Art]

 Conventionally, there have been many inventions as a temporary fixing device for a vehicle air bag current-carrying device such as Japanese Utility Model Laid-Open Nos. 63-196587, 64-27993, and 2-41389.

[0003]

[Problems to be solved by the device]

 Among the above conventional products, the one disclosed in Japanese Utility Model Laid-Open No. 2-41389 is capable of repeating the temporary fixing and releasing states between the rotor and the stator, but when releasing the temporarily fixing state. Requires the flexible tongue fixed to the stator side to be removed from the engagement hole or engagement protrusion on the rotor side, and conversely when the tongue is released from the released state to the temporarily fixed state. It required the work of fitting it into the engagement holes and engagement projections.

[0004]

[Means for Solving the Problems]

 According to the present invention, when the temporary fixing is released, the temporary fixing is automatically released by rotating the handle, and the stopper is simply slid even when the temporary fixing is made again. It is a feature.

That is, according to the present invention, a ring-shaped case (2) having a U-shaped cross section is fixed to the steering column side, and is fixed to the handle side and fitted to the inner peripheral portion of the case to rotate together with the handle. Of a vehicle in which a spiral tape-shaped cord (1) is housed in a hollow ring-shaped main body composed of a cylindrical rotor (10) that can follow the turning operation of the steering wheel. In the air bag current-carrying device, a sliding groove (11) having a constant width is provided in the outer peripheral portion of the upper surface of the rotor (10) in the radial direction, and a lock hole (12) is provided at the bottom or side of the sliding groove. On the other hand, a lock groove (3) that fits the sliding groove at the neutral position is provided on the inner peripheral surface of the case (2), and the tip portion is formed into a flat arc shape (5) or a V shape, and the lower surface is formed. Alternatively, temporarily fix the lock hole (12) on the side surface. A stopper (4) equipped with a lock pin (6) that can be fitted with is reversibly slidable in the sliding groove (11) of the rotor so that the stopper tip end faces the lock groove (3) of the case. 1 is a reversible temporary fixing structure in an air bag current-carrying device of a vehicle, which is provided.

[0006]

【Example】

 An outline of an air bag current-carrying device to which the temporary fixing structure of the present invention is applied is as shown in FIGS. In the figure, (1) is a tape-shaped cord. One end of this cord is fixed to the inner peripheral wall of a ring-shaped case (2) having a U-shaped cross section, which is fixed to the steering column side, and the other end. Is fixed to the outer peripheral surface of the rotor (10) that rotates together with the handle, and is provided in a spiral shape so that it can follow a certain amount of rotating operation of the handle.

FIG. 1 is an exploded perspective view of a reversible temporary fixing structure according to the present invention, in which a sliding groove (11) having a constant width is provided in the outer peripheral portion of the upper surface of a rotor (10) in a radial direction. A lock hole (12) is provided at the center of the bottom of the groove. As shown in the figure, about 1/3 of the outside of the lock hole (12) is cut out, and a V-shaped guide (14) extends outward from the cut end (13). On the inner peripheral surface of the ring-shaped fixed case (2), which is in contact with the outer peripheral surface of the rotor (10), at the position corresponding to the sliding groove (11) of the rotor at the neutral position of the handle, the same as the sliding groove. A lock groove (3) of width is provided.

(4) is a stopper having a lock pin (6) which is formed in a flat arc shape (5) at its tip and which fits into the lock hole (12) of the rotor on the lower surface, and is for operation at the upper rear side. It has a slit (7) and slides in the sliding groove (11). The tip of the stopper may have a plane C-shape.

The relationship between the cutout ends (13) and (13) of the lock hole (12) and the lock pin (6) on the lower surface of the stopper is such that one or both of them is made of a material having elasticity. , The diameter of the lock pin (6) is made slightly larger than the gap between the cutouts (13) and (13), and the lockpin (6) passes between the cutouts (13) and (13) unless relatively strong force is applied. I can't.

(8) is a stopper retainer which is fixed so as to cover at least the upper part of the sliding groove (11) of the rotor (10), and the recess (9) having the same width as the sliding groove (11) is inside. It is provided in. However, the stopper retainer (8) may cover only the upper portion of the sliding groove (11) or may have a ring shape.

As shown in FIGS. 2 to 4, the stopper (4) is at a neutral position of the handle where the sliding groove (11) of the rotor and the lock groove (3) of the fixed case (2) are aligned with each other. Insert the stopper (4) into the sliding groove (11) with the arcuate portion (5) at the tip end facing the lock groove (3), and fit the stopper retainer (8) onto the sliding groove (11). Secure it to the upper part of. This state is the temporarily fixed state.

The temporary fixing means when the stopper (4) is immersed in the rotor (10) should not be limited to the structure shown in the figure.

[0014]

[Action]

 In the temporarily fixed state, as shown in FIGS. 3 and 4, the lock pin (6) on the lower surface of the stopper is in contact with the cutout ends (13) and (13) outside the lock hole (12) and the rotor (10). The fixed case (2) and the fixed case (2) do not easily rotate. However, when the fixed case (2) is fixed to the steering column and the rotor (10) is fixed to the steering wheel, if the rotor (10) is rotated with a strong torque by operating the steering wheel, the inner edge of the lock groove (3) of the fixed case is rotated. Then, the side surface of the arcuate portion (5) at the tip of the stopper (4) is pressed to push the stopper (4) inward along the sliding groove (11). As a result, the lock pin (6) is forcibly pushed open at the notches (13) (13) outside the lock hole and is housed in the lock hole (12). As shown in FIG. 5, the tip of the stopper (4) is The rotor (10) is temporarily fixed while being immersed in the sliding groove (11) of the rotor, so that the rotor (10) can smoothly rotate.

On the other hand, when the air bag current-carrying device is removed from the vehicle for repairing the vehicle, the handle is set to the neutral position, and the rotor sliding groove (11) and the locking groove (2) of the fixed case (2) are Insert the tip of a minor screwdriver, etc. into the slit (7) at the rear of the stopper and slide the stopper (4) outward so that the lock pin (6) is notched ( 13) Push (13) open to escape from the lock hole (12), and the stopper tip fits into the lock groove (3) of the fixed case as shown in FIGS. Become.

[0016]

[Other Examples]

 In the above embodiment, the lock pin (6) on the lower surface of the stopper is provided with a notch having a gap smaller than the diameter of the lock pin as a temporary fixing means between the stock bar (4) and the lock hole (12) at the bottom of the sliding groove of the rotor. Although it is configured to forcefully pass between the ends (13) and (13), the locking means is not limited to this.

For example, as shown in FIG. 6, two arcuate lock holes (18) are provided in the bottom of the sliding groove (11), and a deep hole (15) is provided in the lower surface of the stopper (4) and the depth of this deep hole is increased. By loading the ball (17) into the hole through the coil spring (16), and inserting this ball into the slide groove (11) with the ball recessed in the stopper, press it with the stopper presser (8). It may be temporarily fixed, or these temporary fixing means may be provided between the side surface of the stopper (4) and the side surface of the sliding groove (11).

Further, the stopper is formed in such a manner that projections are provided on both outer side portions made of synthetic resin having a planar U-shape and having elasticity, and two lock holes are provided on the front and rear sides of the sliding groove, The protrusions on the side of the stopper may be fitted in the lock holes at the front and rear positions, respectively.

[0019]

[Effect of the device]

 By adopting the above-mentioned configuration, the present invention has the convenience that, when temporarily releasing the temporarily fixed state from the temporarily fixed state, it can be automatically released by operating the handle without touching the temporarily fixed portion. Further, when the temporary fixing state is to be obtained again, the temporary fixing state can be easily achieved by simply sliding the stopper outward with a driver.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an essential part of the present invention.

FIG. 2 is a partial perspective view showing an assembled state of essential parts of the present invention.

FIG. 3 is a partial sectional view of the present invention in a temporarily fixed state.

FIG. 4 is a partial plan view of the present invention in a temporarily fixed state.

FIG. 5 is a partial plan view of the present invention in a temporarily released state.

FIG. 6 is a partial sectional view of another temporary fixing state of the present invention.

FIG. 7 is a plan view of an air bag current-carrying device adopting the present invention.

FIG. 8 is a sectional view of an air bag current-carrying device adopting the present invention.

[Explanation of symbols]

(1) Tape-shaped cord (3) Lock groove
(4) Stopper (5) Arc part (6) Lock pin
(7) Slit (8) Stopper retainer (10) Rotor
(11) Sliding groove (12) Lock hole (13) Notch end
(14) V-shaped guide (15) Deep hole (17) Ball
(18) Lock hole

Claims (1)

[Scope of utility model registration request] 1. A ring-shaped case (2) having a U-shaped cross section fixed to a steering column side, and a cylindrical rotor fixed to the handle side and fitted to an inner peripheral portion of the case to rotate together with the handle. A spiral cord-shaped cord (1) in a hollow ring-shaped main body composed of (10) and
In a vehicle air bag energization device in which a vehicle is housed so as to follow the turning operation of a steering wheel, a rotor (1
The sliding groove (11) having a constant width is provided in the outer peripheral portion of the upper surface of (0) in the radial direction, and the lock groove (3) matching the sliding groove at the neutral position is provided on the inner peripheral surface of the case (2). The stopper is provided with a flat arc shape (5) or a C-shape, and the stopper tip end faces the lock groove (3) of the case. A reversible temporary fixing structure for a vehicle airbag current-carrying device, which is fixedly provided.