JP2001256867A - Ignition switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ignition switch for a two-wheeled vehicle, wherein operating characteristics are improved. SOLUTION: The ignition switch has an outer cylinder part; a partition wall which separates the outer cylinder part into an upper part and a lower part; a body composed of an inner cylinder part concentric with the upper outer cylinder part provided on the upper side of the partition wall; an operating knob, which has a piercing hole in the center, and which is fitted rotatably to an upper end of the outer cylinder part in a state that the inner cylinder part is inserted to the piercing hole; and a movable contact. A movable contact board which rotates in response to the operating knob, and a plurality of fixed contacts are provided. A fixed contact plate are provided on the body so as to face the movable contact board, and a key hole is formed in the center of the upper end, and a plurality of tumblers are loaded from a side direction. The tumblers are engaged with the inner cylinder part, and a cylinder is provided in the inner cylinder part in a state that one end thereof is fitted to the movable contact board. When a key is inserted to the key hole, the engaging of the cylinder and the inner cylinder part is released, the operating knob is operated and rotated in this state to rotate the cylinder and the movable contact board, and the fixed contacts are electrically connected by the movable contact.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ignition switch for a motorcycle.

[0002]

2. Description of the Related Art Conventionally, an ignition switch of a two-wheeled vehicle generally has a form in which a key is inserted into a cylinder lock of the ignition switch and turned on / off by turning the switch.

On the other hand, a switch is turned on / off by turning a rotary operation knob, and the turning operation is performed and unlocked by a cylinder lock provided at the center of the upper end of the operation knob. There is an ignition switch.

[0004] Of the above two types of ignition switches, the latter one is disclosed, for example, in US Pat.
There is an ignition switch described in Japanese Patent No. 387.

In the ignition switch described in the specification of US Pat. No. 5,563,387, when the operation knob is turned from the off position to the on position, first, the key is inserted into the key hole of the cylinder lock and turned. Therefore, the operation knob must be turned from the off position to the on position, and the operability is difficult.

In order to solve such a problem, the present applicant has invented an ignition switch in which an operation knob can be turned from an off position to an on position only by inserting a key into a key hole of a cylinder lock. Filed (Japanese Patent Application No. 11
-207636).

[0007]

However, in the ignition switch of Japanese Patent Application No. 11-207636, the cylinder lock is fixed to the body and does not rotate. The inserted key may obstruct the operation.

[0008]

According to the present invention, the operation knob can be turned from the off position to the on position only by inserting a key into the key hole of the cylinder lock. Are configured to rotate in conjunction with each other to solve the above-described problem.

That is, the present invention provides an outer cylinder (1a), a partition (1b) for vertically dividing the outer cylinder (1a), and the outer cylinder provided above the partition (1b). A body (1) comprising an inner cylindrical portion (1h) concentric with the portion (1a) and a through hole (3a) formed in the center, and the inner cylindrical portion (1h) is formed in the through hole (3a).
The operation knob (3) rotatably fitted to the upper end of the outer cylindrical portion (1a) of the body (1) with the movable contact (4)
a) a movable contact board (4) having a) and engaging with a lower end of the operation knob (3) and rotating in conjunction with the operation knob (3);
A fixed contact board (5) provided on the body (1) opposite to the movable contact board (4), having a plurality of fixed contacts (5a); and a key hole (2a) in the center of the upper end. Is formed and a plurality of tumblers (7) are loaded from the side, and the tumbler (7) is engaged with the inner cylindrical portion (1h) and one end is fitted to the movable contact board (4). And a cylinder (2) provided in the inner cylinder portion (1h) in a state. When the key (6) is inserted into the key hole (2a), the cylinder (2) and the inner cylinder portion (1h ) Is released, and in this state, the operation knob (3) is rotated to operate the cylinder (2).
And the movable contact board (4) is rotated, and the movable contact (4
The ignition switch is characterized in that conduction is established between the fixed contacts (5a) of the fixed contact panel (5) in a).

According to a second aspect of the present invention, in the first aspect, the key (6) is inserted into the key hole (2a) of the cylinder (2), and the operation knob (3) is turned to the off position or the P position. The key (6) can be removed at the ON position when the key is rotated from the position to the ON position. When the key (6) is pulled out of the cylinder (2) at the position, the operation knob (3) is rotatable from the ON position to the OFF position or the P position, and is turned ON from the OFF position or the P position. The rotation operation to the position is disabled.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

[0012] The ignition switch according to the present invention comprises:
As shown in FIG. 2, a substantially cylindrical body (1) and an operation knob (3) rotatably provided on an upper portion of the body (1).
A cylinder (2) fitted into the through hole (3a) of the operation knob (3) and rotating together with the operation knob (3); a movable contact board (4) interlocked with the operation knob (3); The operation knob (3) comprises a fixed contact panel (5) fixed to the lower end of the body (1), and the operation knob (3) is in an off position, as shown in FIGS. 1 (a) and 1 (b). Three positions, an ON position and a P (parking) position, can be selectively rotated.

The off position is a position where the power of the two-wheeled vehicle is off, the on position is a position where the power of the two-wheeled vehicle is on and the engine can be started, and the P position is a parking light of the two-wheeled vehicle. (Parking lamp).

The body (1) is made of aluminum die-casting or the like and, as shown in FIGS. 2 and 4, separates an outer cylindrical portion (1a) having an open upper portion and the outer cylindrical portion (1a) up and down. A partition wall (1b), and an inner cylindrical portion (1h) concentric with the outer cylindrical portion (1a) provided above the partition wall (1b). As shown in FIG. 3, a pair of arc-shaped long holes (1d) are provided along the outer cylindrical portion (1a).

As shown in FIG. 5, the inside of the inner cylindrical portion (1h) is formed in the shape of a through hole, and a wide projection (1i) is formed along the axial direction thereof. Two narrow projections (1j) (1j) are formed at a position facing 1i) with a predetermined gap.

The body (1) is formed with a projecting portion (1e) having mounting holes (1f) on both left and right sides thereof. Using the mounting holes (1f), a bolt (not shown) or other Is attached to the vicinity of the center of the steering wheel of the two-wheeled vehicle by the fastening means.

As shown in FIG. 4, the operation knob (3) has a through hole (3a) formed at the center and a pair of knobs (3d) projecting from the front and rear of the upper part. A pair of projections (3b) (3b) are provided downward from the lower end, and an annular groove (3c) having a constant depth is formed on the lower side surface.

The operating knob (3) is configured such that the projection (3b) is fitted into the elongated hole (1d) of the body (1) and the outer cylinder (1a) is used as a guide to guide the outer cylinder. (1a) is rotatably fitted. In this state, the pin (10) is driven into the pin hole (1g) on the side surface of the body (1),
The tip of the pin (10) is engaged with the groove (3c) of the operation knob (3) to prevent the operation knob (3) from coming off.

The cylinder (2) has a key hole (2a) in the center of the upper end into which a key (6; see FIG. 2) can be inserted, and a flat shape at the lower end corresponds to the engagement hole (1c). A predetermined key is formed by loading a plurality of plate-shaped tumblers (7) from the side while being urged by springs (9; see FIGS. 2 and 5). Form seeds.

In this state, the cylinder (2) is inserted into the inner cylindrical portion (1h) of the body (1), and a thick plate-like stopper (8; FIG. 2) provided below the tumbler (7).
) Is engaged with the lower end of the inner cylindrical portion (1h), and the projection (2b) is fitted into an engagement hole (4b) of a movable contact board to be described later.

The movable contact board (4) is, as shown in FIG.
A movable contact (4a) is provided on the lower surface of the body (1) below the partition wall (1b) of the body (1). ) Is formed, and one side has a projection (3b) of the operation knob (3).
Is engaged. That is, the movable contact board (4) is connected to both the operation knob (3) and the cylinder (2), and rotates in conjunction with the rotation operation of the operation knob (3). .

The fixed contact board (5) is, as shown in FIG.
A plurality of rivet-shaped fixed contacts (5a) (5a) are embedded in the lower end of the body (1) by screws (14) so as to face the movable contact board (4).
A predetermined circuit is formed by making the movable contact (4a) conduct between the fixed contacts (5a) and (5a).

(13) corresponds to the fixed contacts (5a) (5
These are lead wires for connecting a) to electrical components (not shown) of a motorcycle. Further, (12) is a ball for obtaining a predetermined sense of moderation when the operation knob (3) is rotated, and (11) is a spring for urging the ball (12) in the outer diameter direction. is there.

Next, the operation of the ignition switch according to the present invention will be described. First, when the operation knob (3) is in the off position in FIG. 5A and the key (6) is not inserted into the cylinder (2), the operation knob (3)
The tumbler (7) is protruded by the spring (9) and is engaged with the projection (1i) in the inner cylindrical portion (1h) of the body (1).
In this state, since the rotating operation of the movable contact board (4) and the operation knob (3) connected to the cylinder (2) is prevented, the state is locked.

In this state, when the key (6) is inserted into the key hole (2a) of the cylinder (2), the tumbler (7) is drawn into the cylinder (2) and disengages from the projection (1i). Accordingly, the unlocked state is established, and the operation knob (3) can be rotated to the ON position in FIG. 5B.

When the operation knob (3) is turned to the ON position, the movable contact board (4) is rotated in conjunction therewith, and the movable contact (4a) is moved to the fixed contact board (5) as shown in FIG. Fixed contacts (5
a) Since a predetermined circuit is formed by conducting between (5a),
Thereby, the power of the two-wheeled vehicle is turned on, and the engine can be started. At this time, since the cylinder (2) rotates in conjunction with the operation knob (3) as shown in FIG. 1B, the key (6) may obstruct the operation as in the conventional product. There is no.

In this ON position, as shown in FIG. 5B, the tumbler (7) can project downward, so that the key (6) can be removed from the cylinder (2). That is, when trying to extract the key (6) from the state shown in FIG. 5B, the tumbler (7) is pushed by the edge (6a) of the key (6) and moves downward in the figure. At this time, since a predetermined gap is formed between the two narrow projections (1j) (1j) in the inner cylindrical portion (1h), the tumbler (7) must project into the gap. Can be
The key (6) can be removed.

Thus, after the engine of the motorcycle is started, the key (6) can be removed from the cylinder (2) and stored in a pocket or the like, and the motorcycle can be driven in this state.

After driving the two-wheeled vehicle, when the operation knob (3) is turned to the off position or the P position in FIG.
The tumbler (7) is protruded by the spring (9) and the projection (1
engage i). As a result, the cylinder (2) is locked and the operation knob (3) connected via the movable contact board (4) is also locked, so that the key (6) must be inserted into the cylinder (2) again. The operation knob (3) cannot be returned to the on position.

That is, the operation knob (3) can be operated from the ON position to the OFF position or the P position with one touch without using the key (6), and automatically at the OFF position or the P position. Locking is performed and the operation knob (3) cannot be operated to the ON position again.

As shown in FIG. 3, the operation knob (3) has the protrusion (3b) at the position X1 of the long hole (1d) at the off position, and has the position X2 at the position P as shown in FIG. Therefore, the turning operation in the counterclockwise direction from the off position,
The clockwise rotation operation from the position is restricted.

The ignition switch according to the present invention comprises:
The present invention is not limited to two-wheeled vehicles, but can be widely used as long as it has a key-type switch, such as a four-wheeled vehicle, a small boat, or a working machine equipped with an engine.

Further, in the above-described embodiment, a structure in which a plurality of plate-shaped tumblers (7) are loaded in the cylinder (2) is used as a means for forming a predetermined key type. However, the present invention is not limited to this, and for example, a pin-shaped tumbler or a magnet tumbler can be applied instead of the plate-shaped tumbler (7).

[0034]

According to the present invention, the key (6) is connected to the cylinder (2).
The operation knob (3) can be turned only by inserting it into the cylinder, and the cylinder (2) is turned in conjunction with the operation knob (3) when the operation knob (3) is turned. The key (6) inserted in (2) does not obstruct the operation.

When the operation knob (3) is turned from the OFF position or the P position to the ON position, the key (6) can be removed at the ON position, so that the operability is good.

Further, when the operation knob (3) is turned from the ON position to the OFF position or the P position after the key (6) is extracted, the operation knob (3) is automatically turned at the OFF position or the P position. Since the vehicle is locked, there is no need to insert the key (6) into the cylinder (2) for locking after driving the two-wheeled vehicle, and the usability is extremely good.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention,
(A) shows a case where the operation knob is in the off position, and (b)
Indicates a case where the operation knob is at the ON position.

FIG. 2 is a sectional view taken along line AA of FIG. 1 (b).

FIG. 3 is a sectional view taken along line BB of FIG. 2;

FIG. 4 is an exploded perspective view.

FIG. 5C shows the relationship between the cylinder and the operation knob in FIG. 2;
FIG. 4A is a cross-sectional view taken along line C, where (a) shows a case where the operation knob is at an off position, and (b) shows a case where the operation knob is at an on position.

[Explanation of symbols]

 1 Body 1a Outer cylinder part 1b Partition wall 1c Engagement hole 1d Elongated hole 1h Inner cylinder part 1i Projection 1j Projection 2 …… Cylinder 2a …… Key hole 2b …… Protrusion 3 …… Operation knob 3a ……… Through hole 3b …… Protrusion 3c …… Groove 3d …… Knob part 4 …… Movable contact board 4a …… Movable contact 5 ……… Fixed contact board 5a ……… Fixed contact 6 …… Key 7 …… Tumbler

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshifumi Mano 1-1, Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries, Ltd. Inside Akashi Plant (72) Inventor Naoichi Kusaka 1-1-1, Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries, Ltd. Akashi Factory F-term (reference) 2E250 AA21 HH07 JJ00 PP15 QQ02 SS04

Claims (3)

[Claims] 1. An outer cylindrical portion (1a), a partition wall (1b) for vertically partitioning the outer cylindrical portion (1a), and the outer cylindrical portion (1a) provided above the partition wall (1b). And a body (1) consisting of an inner cylindrical part (1h) concentric with the inner cylindrical part (1h). An operation knob (3) rotatably fitted to the upper end of the outer cylindrical portion (1a) of (1) and a movable contact (4a). A movable contact board (4) that rotates in conjunction with the knob (3) and a plurality of fixed contacts (5a)
A fixed contact board (5) provided on the body (1) facing the movable contact board (4); a key hole (2a) formed in the center of the upper end; (7) are loaded, and the tumbler (7) is engaged with the inner cylindrical portion (1h), and the inner cylindrical portion (1h) is fitted with one end fitted to the movable contact board (4). A key (6) inserted into the key hole (2a), the cylinder (2) and the inner cylinder (1h) are disengaged from each other, In this state, the operation knob (3) is rotated to rotate the cylinder (2) and the movable contact board (4), and the movable contact (4a) is used to fix the fixed contact (5a) of the fixed contact board (5). ) An ignition switch characterized by conducting between them. 2. A key (6) is inserted into a key hole (2a) of the cylinder (2), and when the operation knob (3) is turned from an off position or a P position to an on position, the key is turned to the on position. The ignition switch according to claim 1, wherein the key (6) can be removed with the switch. 3. When the key (6) is withdrawn from the cylinder (2) at the on position, the operation knob (3) is rotatable from the on position to an off position or a P position. 3. The ignition switch according to claim 2, wherein the turning operation from the off position or the P position to the on position is disabled.