JPH0845632A - Roll connector - Google Patents

Abstract

PURPOSE:To provide a roll connector free from the risk that splinters of a provisional fixing seal, generated by rupturing for disengagement of the provisional fixation, comes in contact with a rotor. CONSTITUTION:The peripheral surface 12 of a rotor protrudes from the peripheral surface 22 of a stator 20 furnished with a pin inserting swellout part 40. A seal rupturing projection 34 on a provisional fixing pin 30 to fix provisionally the rotor 10 and stator 20 protrudes through a slit 44 to put a pin inserting hole 42 in communication with the outside. A seal affix surface 49 for affixation of a provisional fixing seal 46 in such a way as covering the slit 44 after insertion of the provisional fixing pin for holding the provisional fixation is positioned outside the rotor peripheral surface 12 in radial direction. Therefore, seal sprinters generated by rupturing with the projection 34 of the pin 30 to be drawn off at the time of provisional fixation disengagement will be located outside the rotor peripheral surface 12 in radial direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll connector as an electrical connecting device between a steering wheel for a vehicle and a steering column, and more specifically, it temporarily fixes a neutral position of a flat cable housed inside the roll connector. Regarding the possible roll connector.

[0002]

2. Description of the Related Art A roll connector is generally used as a device for electrically connecting a steering wheel (steering wheel) and a steering column of an automobile. This roll connector has its casing
The rotor includes a rotor that rotates together with the handle and a stator that is fixed to the steering column. A flat cable, which is formed in a strip shape by integrally covering a plurality of electric conductors and which is rich in flexibility, is housed in the interior thereof in a spiral shape. further,
One peripheral end of this flat cable is fixed to the rotor, and the other peripheral end is fixed to the stator.

The roll connector having such a structure can follow the rotation of the steering wheel by loosening or tightening the spiral state of the flat cable, so that the electrical connection between the steering wheel and the steering column is always maintained. It will be possible. Therefore, before mounting the roll connector on the automobile, generally, the rotor and the stator are
As a matter of course, since it is relatively rotatable, the spiral state of the flat cable housed therein changes arbitrarily as the flat members are rotated.

By the way, when the steering wheel is mounted on the steering shaft, it goes without saying that the neutral position of the steering wheel and the neutral position of the flat cable (whether the spiral state of the flat cable is tightened or loosened). (Unbiased state) must match each other.

Therefore, in order to solve such a problem, a temporary fixing pin for temporarily fixing the relative rotation between the rotor and the stator is usually used. In the roll connector,
There are various combinations of rotors and stators, but here we will focus on a type in which a lid-shaped rotor is placed on top of the stator, and the entire rotor projects radially outward from the stator. A pin usage example will be described.

That is, as shown in FIGS. 1 and 2, in the roll connector 70, the rotor 72 is provided with the engaging projection 73, and the stator 74 is provided with the pin insertion bulging portion 77 at predetermined positions. With the connector 70 in a neutral state, a temporary fixing pin 80 is inserted in the pin insertion hole 75 of the pin insertion bulging portion 77.
And insert the temporary fixing pin 8 into the engaging projection 73 of the rotor 72.
No. 0 engaging hole 82 is engaged.
2 is configured to be temporarily fixed and released by inserting and removing a temporary fixing pin 80 that locks the 2 and the stator 74.

More specifically, a seal breaking projection 83 is formed at the tip of the temporary fixing pin 80, and a slit 76 is formed in the pin insertion bulging portion 77 for communicating the pin insertion hole 75 with the outside. When the temporary fixing pin 80 is inserted into the pin insertion hole 75 for temporary fixing, the seal breaking projection 83 of the temporary fixing pin 80 passes through the slit 76 and forms the slit 76.
More than the outside. After inserting the temporary fixing pin 80, an elongated temporary fixing seal 86 is attached in the circumferential direction above the projection 83 of the temporary fixing pin 80 (on the pulling side) so as to cover the slit 76. The temporary fixing seal 86 is used for the temporary fixing pin 8.
Since the temporary fixing pin 80 is prevented from coming off by interfering with the projection 83 of 0, the temporary fixing state is maintained. To release the temporary stop,
This is performed by forcibly pulling out the temporary fixing pin 80 and tearing the temporary fixing seal 86 by the projection 83 of the temporary fixing pin 80 (for example, Japanese Utility Model Publication No. 5-21836).

However, as shown in FIG. 2, the broken pieces 88a, 88b of the temporary fixing seal 80, which are torn when the temporary fixing is released, have their bonding positions displaced in the pin pulling-out direction, that is, the direction of the rotor 72, and the end of the broken portion thereof May cause a problem that the rotor comes into contact with the outer peripheral surface of the rotating rotor 72 to generate sound. In particular, a roll connector 7 of a type in which a lid-shaped rotor 72 is provided above the stator 74, and the outer peripheral surface of the rotor 72 entirely projects beyond the outer peripheral surface of the stator 74.
At 0, it becomes a problem. In some cases, due to the structure of the roll connector 70, it may not be possible to avoid the position where the temporary fixing seal 86 is attached away from the rotor 72.
Since narrowing the width of 6 impairs workability, it is not easy to solve this problem.

[0009]

SUMMARY OF THE INVENTION Therefore, the technical problem to be solved by the present invention is that, when the temporary fixing seal which has been held in the temporarily fixed state is broken to release the temporary fixing, the fragment is broken. To provide a roll connector configured so as not to come into contact with the roll connector.

[0010]

In order to solve the above technical problems, the present invention provides a roll connector having the following structure.

That is, this roll connector is provided with a lid-shaped rotor on an upper portion of a stator for accommodating a flat cable, and an outer peripheral surface of the rotor is entirely protruded from an outer peripheral surface of the stator. A pin insertion bulge is formed at a predetermined position on the outer peripheral surface of the stator, and an axial slit that connects the pin insertion hole and the outside is formed in the pin insertion bulge. The temporary fixing pin having the seal breaking projection is axially inserted into the pin insertion bulging portion to temporarily fix the stator and the rotor. In addition, an elongated seal is attached to the seal attaching surface on the outer periphery of the bulging portion for pin insertion so as to cover the slit,
When pulling out the temporary fixing pin, the seal breaking projection of the temporary fixing pin passes through the slit and breaks the seal. In such a roll connector,
The entire sticking surface of the pin insertion bulging portion is curved substantially along the outer peripheral surface of the rotor and projects radially outward from the outer peripheral surface of the rotor.

In the above structure, the temporary fixing seal is affixed to the seal affixing surface of the bulging portion that projects radially outward from the outer peripheral surface of the rotor, so that the temporary fixing pin is forced to release the temporary fixing of the roll connector. Even after being temporarily pulled out and the temporary fixing seal is torn, the broken pieces of the temporary fixing seal are located radially outside the outer peripheral surface of the rotor.

Therefore, in the above-mentioned structure, when the temporary fixing seal that has been held in the temporarily fixed state is broken to release the temporary fixing, the broken pieces do not come into contact with the rotor. Since the entire seal sticking surface to which the temporary seal is stuck is curved substantially along the outer peripheral surface of the rotor and projects radially outward from the outer peripheral surface of the rotor, There is no need to bend and stick to
It is easy to attach and improves workability.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The roll connector according to one embodiment of the present invention shown in FIGS.

FIG. 3 is a plan view of a roll connector according to an embodiment of the present invention, FIG. 4 is a front view, and FIG. 5 is a side view of essential parts.

As shown in FIGS. 3 and 4, the roll connector 1
Has a structure similar to that of the conventional example.
0 and a lid-shaped rotor 1 arranged on the top of the stator 20.
With 0 and. The rotor 10 is mounted on the handle side and rotates together with the handle (not shown). That is, a pin (not shown) protruding from the upper surface of the rotor 10 is formed, and this pin engages with a pin hole formed in a member on the handle side when the roll connector is attached, so that the rotor 10 and the handle are integrated. It is designed to rotate. Further, the stator 20 is fixed to a member on the steering column side through a fixing portion 24. This rotor 10
And the stator 20 are rotatably combined with each other, and a flat cable (not shown) is spirally wound and housed inside the flat cable. The inner peripheral edge and the outer peripheral edge of the flat cable are connected to the contact terminals 18 and 28 of the rotor 10 and the stator 20, respectively. In the roll connector 1, as shown well in FIG. 4, the entire outer peripheral surface 12 of the rotor 10 projects outward in the radial direction from the outer peripheral surface 22 of the stator body portion 21 immediately below. That is, the rotor 10 has a larger outer diameter than the stator body 21.

The roll connector 1 is temporarily fixed by using the temporary fixing pin 30 and the temporary fixing seal 46, as in the conventional example, before being mounted on the steering device (steering device) of the automobile. Has been done.

That is, as shown in FIGS. 3 and 4, at a predetermined position of the stator main body 21, this pin insertion bulging portion 40 projecting radially outward from the rotor 10 is provided, and the seal sticking surface on the outer periphery thereof is provided. The entire 49 is the outer peripheral surface 12 of the rotor 10.
It is located outside in the radial direction. Pin insertion bulge 4
0, as shown in FIGS. 4 and 5, the pin insertion hole 4 in the axial direction.
2 is formed, and further, a slit 44 that connects the pin insertion hole 42 and the outside is formed. On the other hand, an engaging projection 14 is provided at a predetermined position on the upper surface of the rotor 10.

As shown in FIG. 5, the temporary fixing pin 30 comprises a main body 32 and a horizontal piece 36 perpendicular to the main body 32.
A grip portion 33 is formed at the upper end of the main body portion 32, and an outward seal breaking projection 34 is formed at the lower end thereof. Horizontal piece 3
6, an engaging hole 37 is formed.

For temporary fixing of the roll connector 1, with the roll connector 1 in the neutral position, the temporary fixing pin 30 is inserted from the seal breaking projection 34 side into the pin inserting bulging portion 40 from the rotor 10 side (upper side). Then, the engagement protrusion 37 of the rotor 10 is engaged with the engagement hole 37 of the lateral piece 36 of the temporary fixing pin 30, and in this state, the pin insertion bulge portion 40 is formed so as to cover the slit 44.
This is performed by sticking a long and thin temporary fixing seal 46 on the sticker sticking surface 49 of the above in the circumferential direction.

At this time, since the rotor 10 and the stator 20 are locked by the temporary fixing pin 30, they do not rotate relative to each other. Further, the temporary fixing pin 30 has a projection 34 protruding radially outward from the slit 44, and the temporary fixing seal 4
Since it is caught by 6, it cannot be pulled out from the insertion space 42 unless it is forcibly pulled out. Therefore, the roll connector 1
Retains its temporarily fixed state.

The temporary fixing is released by forcibly pulling out the temporary fixing pin 30. At this time, the temporary fixing pin 3
The seal breaking protrusion 34 of 0 tears the temporary fixing seal 46. Preferably, the protrusion 34 of the temporary fixing pin 30 has a barbed shape on the pull-out side (upper side), and the temporary fixing seal 46 is provided with perforations along the break line to facilitate breakage.

When the temporary fixing pin 30 is forcibly pulled out, a broken piece of the temporary fixing seal 46 may be displaced toward the rotor 10 as in the case of the conventional example. However, since the temporary tacking seal 46 is affixed to the seal pasting surface 49, which is located entirely on the outer side in the radial direction of the outer peripheral surface 12 of the rotor 10, the broken pieces of the temporary tacking seal 46 remain even after being broken. , Located radially outside the outer peripheral surface 12 of the rotor 10.

Therefore, in the roll connector 1 of the above-described embodiment, the temporary fixing seal 4 which has maintained the temporary fixing state is used.
When 6 is broken to release the temporary fixing, the broken pieces do not contact the rotor 10.

Since the sticking surface 49 of the pin insertion bulging portion 40 is curved along the outer peripheral surface 12 of the rotor 10 and projects radially from the outer peripheral surface 12 of the rotor 10,
The temporary fixing seal 46 can be easily attached. In addition, the sticker sticking surface 49 of the pin insertion bulging portion 40 is provided with the temporary fixing seal 4
6 is affixed to the whole, and a temporary fixing seal is provided on the slopes 41a and 41b (see FIG. 3) extending between the seal attachment surface 49 of the pin insertion bulging portion 40 and the stator body 21. Do not attach 46. That is, the temporary fixing seal 46, including both end portions 47 a and 47 b thereof, is located on the outer side in the radial direction of the outer peripheral surface 12 of the rotor 10.

The present invention can be implemented in various other modes. For example, the engagement means between the rotor 10 and the temporary fixing pin 30 is not limited to the above embodiment.

[Brief description of drawings]

FIG. 1 is a plan view of a roll connector of a conventional example.

FIG. 2 is a front view of a main part of FIG.

FIG. 3 is a plan view of a roll connector according to an embodiment of the present invention.

FIG. 4 is a front view of FIG.

5 is a side view of a main part of FIG.

[Explanation of symbols]

 1 Roll Connector 10 Rotor 12 Outer Surface 14 Engagement Protrusion 18 Contact Terminal 20 Stator 21 Stator Main Body 22 Outer Peripheral Surface 24 Fixed Part 28 Contact Terminal 30 Temporary Fixing Pin 32 Main Body 33 Grip 34 34 Seal Break Protrusion 36 Side Piece 37 Engagement Dowel hole 40 Pin insertion bulge 41a, 41b Slope 42 Pin insertion hole 44 Slit 46 Temporary seal 47a, 47b End 49 Seal sticking surface

Claims (1)

[Claims] 1. A stator for accommodating a flat cable.
A lid-shaped rotor (10) is provided on the upper part of (20),
The outer peripheral surface (12) of (10) is the outer peripheral surface (22) of the stator (20).
The outer peripheral surface (22) of the stator (20)
A pin insertion bulge portion (40) is formed at a predetermined position of the pin insertion bulge portion (40), and the pin insertion bulge portion (40) has an axial slit (44) communicating the pin insertion hole (42) with the outside. ) Is formed,
The temporary fixing pin (30) having the seal breaking protrusion (34) is axially inserted into the pin inserting bulge (40) to temporarily fix the stator (20) and the rotor (10). Further, an elongated seal (46) is attached to the seal attaching surface (49) on the outer periphery of the pin insertion bulging portion (40) in the circumferential direction so as to cover the slit (44). Stop pin
When pulling out (30), the protrusion (34) for breaking the seal of the temporary fixing pin (30) passes through the slit (44) and the seal is released.
In the roll connector (1) configured to break the (46), the entire sticking surface (49) of the pin insertion bulging portion (40) substantially covers the outer peripheral surface (12) of the rotor (10). A roll connector characterized by being curved along and protruding radially outward from the outer peripheral surface (12) of the rotor (10).