JPH073594Y2 - Roll connector - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a roll connector for electrically connecting a steering column and a steering wheel,
In particular, it relates to the structure of the joint portion of the roll connector with the steering wheel.

[Prior art]

Conventionally, between the steering wheel and the steering column, a roll connector is provided for electrically connecting the steering wheel while allowing the rotation of the steering wheel within a predetermined range. FIG. 2 shows an example of its attachment. Although the internal structure is not shown in this figure, the roll connector 10 generally performs the operation of the turn signal and the lighting of the headlights in order to respond to the rotation of the steering wheel 18. The stator fixed to the combination switch 11) and the rotor that rotates with the steering wheel are combined so as to form a donut-shaped space therebetween, and a flat spirally wound flat space is formed in the space. The cable is housed with one end fixed to the stator and the other end fixed to the rotor. In the roll connector 10, the stator has a mounting portion for fixing it to the combination switch 11 with bolts or the like, while the rotor has a pin 12 protruding toward the steering wheel. This pin 12
Fits into a recess 17 formed in the steering wheel 18 when the steering wheel 18 is inserted into a steering shaft (not shown). Therefore, after the steering wheel 18 is fixed to the steering shaft, the roll connector 10 and the steering wheel 18 are not directly fixed, but the pin 12 does not.
Since it does not come out of the recess 17 of the 18, the rotor can also rotate as the steering wheel 18 rotates. Further, as an improved version of this roll connector 10, it absorbs the impact on the pin 12 fitted in the recess 17,
There is a pin 12 covered with a rubber cap 15 in order to prevent rattling noise from being generated between the pin 12 and the recess 17. Simply covering the rubber cap 15 on the pin 12 may cause the cap 15 to come off or come off the pin 12 when the roll connector 10 is assembled to the combination switch 11 or when the steering wheel is subsequently mounted. is there. Therefore, in order to prevent such a problem, in this type of roll connector 10, as shown in detail in FIG. 3, a flange portion 14 is formed at the lower end of the rubber cap 15, and the lower end portion of the pin 12 in the rotor is formed. A recess 19 is formed so that the rotor and the flange portion 14 are substantially flush with each other when the periphery of the rotor is recessed from the upper surface of the rotor and the flange portion 14 of the cap 12 is fitted therein.
Further, a display label 16 and the like are attached across the upper surface of the rotor and the upper surface of the flange portion 14 of the rubber cap 15.

[Problems to be solved by the device]

As described above, in the roll connector 10 of the type in which the rubber cap 15 is attached to the pin 12, the label 16 is used to temporarily prevent the retainer, but the adhesive force alone is sufficient to hold the cap 15. It is not sufficient, and the cap 15 is still easily lifted from the rotor even if it is pulled by a slight force, and there is a high possibility that the cap 15 will come off from the pin 12.
In such a case, it is necessary to remove the steering wheel from the steering shaft and mount it again, which is very troublesome. With respect to such a problem, it is a simple matter to fix the rubber cap 15 to the rotor by an additional means such as a screw, but doing so increases the number of parts. At the same time, it is not preferable in terms of an increase in processing man-hours and a decrease in workability. Therefore, the technical problem to be solved by the present invention is to improve the holding force of the rubber cap with respect to the pin while keeping the number of parts and workability at the same level as in the past.

[Means, actions and effects for solving the problems]

According to the present invention, the pin is composed of a leg protruding from the upper surface of the rotor and a locking head having a diameter larger than the leg,
The cap is provided with a storage portion that stores the locking head portion, and a projection portion that is fitted to the leg portion at the upper end position of the leg portion while contacting the locking head portion from below. A roll connector is provided. In the above configuration, even when a force that pulls out the cap is applied when the roll connector is mounted on the steering column or when the steering wheel is mounted on the steering shaft, the protrusion formed on the cap is It does not come off easily because it is caught on the locking head. Therefore, the number of parts does not increase and the workability does not decrease, and only the holding force of the cap with respect to the pin is improved. Therefore, the trouble of removing the cap and reattaching the steering wheel is significantly reduced. Further, in the above-mentioned configuration, the collar portion is formed on the cap as in the conventional case, and the concave portion for accommodating the collar portion is formed on the upper surface of the rotor, and the display label is attached across the collar portion and the upper surface of the rotor. May be. By doing so, the cap is more strongly held against the pin, further reducing the likelihood of the cap coming off the pin.

【Example】

A roll connector according to an embodiment of the present invention will be described in detail below with reference to FIG. FIG. 1 is an enlarged sectional view of a pin formed on the upper surface of the rotor. The roll connector itself is the same as that described in the conventional example, and is composed of a rotor and a stator rotating with each other, and a spirally wound flat cable housed in a donut-shaped space formed therebetween. There is. As shown in the figure, the pin 1 is composed of a leg portion 3 protruding from the upper surface of the rotor, and a locking head portion 2 having a diameter larger than that of the leg portion 3. Further, when the pin 1 is fitted in the recess formed in the steering wheel, it is possible to prevent the impact applied from the steering wheel and prevent rattling noise between the pin 1 and the recess. In order to do so, the pin 1 is covered with a rubber cap 7. The cap 7 includes a storage portion 4 for storing the locking head 2 of the pin 1 and a projection portion to which the leg 3 fits while being in contact with the locking head 2 from below at the upper end position of the leg 3. 5
And a flange portion 6 that extends outward in the radial direction is formed at the lower end thereof. In addition, around the lower end of the pin 1 on the upper surface of the rotor, a recess 9 is formed so that when the flange 6 of the cap 7 fits in the rotor upper surface and the flange 6 is substantially flush with the rotor. Are formed. Furthermore, the upper surface of the rotor and the flange portion 6 of the rubber cap 7
The display label 8 is attached across the upper surface of the. With this configuration, when the roll connector is mounted on the steering column side, even if a force to remove the cap 7 from the pin 1 is exerted, the cap 7 is attached to the upper surface of the rotor by the label 8. In addition, the protrusion 5 in the cap 7 is caught by the locking head 2 of the pin 1 and cannot be easily removed. Therefore, according to this configuration, the holding force of the cap 7 with respect to the pin 1 is improved without increasing the number of parts and the workability,
Eventually, the cap comes off, and the troublesome work of reattaching the steering wheel is drastically reduced.

[Brief description of drawings]

FIG. 1 is a sectional view of a positioning pin with respect to a steering wheel in a roll connector according to the present invention, FIG. 2 is a mounting structure diagram of a conventional roll connector, and FIG. 3 is a sectional view of a positioning pin with respect to a steering wheel in a conventional roll connector. Is. 1 ... pin, 2 ... locking head, 3 ... leg part, 4 ... storing part, 5 ... projection part, 6 ... flange part, 7 ... cap, 8 ...
Display label, 9 Recess

Claims (1)

[Scope of utility model registration request] 1. A pin (1) is formed on an upper surface of a rotor, and an elastic cap (7) is attached to the pin (1),
In a roll connector configured such that the pin (1) with the cap (7) fits into a recess formed in the steering wheel and the rotor rotates with the rotation of the steering wheel, the pin (1) is It is composed of a leg portion (3) protruding from the upper surface and a locking head portion (2) having a diameter larger than that of the leg portion (3), and the cap (7) houses the locking head portion (2). And a protruding portion (5) fitted to the leg portion (3) at the upper end position of the leg portion (3) and in contact with the locking head portion (2) from below. A roll connector characterized by having.