JPS62260670A - Cover for fuel tank - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lid for a fuel tank in an automobile or the like.

[Conventional technology]

Conventional fuel tank lids of this kind are, for example,
As shown in Japanese Patent No. 2.88, the lid cannot be locked unless a key is used.

[Problem to be solved]

In the conventional technology, the tank lid must be locked with a key after refueling, so the key remains attached to the lid. For this reason, when you want to pick up the key and operate the ignition switch while refueling, or when you want to listen to the car radio or keep the air conditioning on.
It has the troublesome disadvantage of having to hand over the key once.

[Means for solving problems]

Therefore, in the present invention, the lock can be automatically locked by operating the rotating handle with the key removed. That is, a ratchet wheel is provided between the lid body having a screw on the outer periphery and the rotating handle, and the operation of the rotating handle is transmitted to the lid body via the ratchet wheel, and the rotating handle and the ratchet wheel are integrally connected to each other. A rotating ratchet is provided, and a locking piece is provided that is driven by the rotor of the cylinder lock provided in the rotating handle relative to the ratchet. In this case, a backward driving slope for the plate tumbler is provided between the unlocking groove and the locking groove in which the plate tumbler engages, and after the key is removed, the locking piece can be moved from the unlocked position by tightening the rotating handle. The object of the present invention is to enable a keyless locking operation by moving a plate tumbler provided on the rotor of a cylinder lock to a locking position and moving it from an unlocking position to a locking device.

[For production]

In the above configuration, by driving the locking piece with the cylinder lock to move it toward and away from the ratchet,
The locked state and unlocked state of the ratchet can be set corresponding to the locked and unlocked positions of the cylinder lock, and when the ratchet is in the locked state, the ratchet does not engage with the ratchet wheel, so the lid cannot be opened.

When the key is removed from the unlocked position and the lid is closed using the rotary handle, the locking piece is released from the ratchet and becomes locked, causing the plate tumbler of the cylinder lock rotor to move backward and tilt. Without sliding the surface, the plate tumbler is moved from the unlocking groove to the locking groove to change the cylinder lock to the locking position.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In the drawings, Fig. 1 is a longitudinal sectional view of the lid body, and Fig. 2 is an exploded perspective view of the lid body.
is the valve device of the air regulating valve.

FIG. 3(A) shows the driving protrusion 9a formed at the tip of the rotor 9 of the cylinder lock S with broken lines, and also represents the case 8 of the cylinder lock S in a cross section, and FIG. 3(B) shows the ratchet wheel 12. and ratchet 14 and locking piece 15
The positional relationship between the drive protrusion 9a of the cylinder lock S and the cylinder lock S is shown in a plan view.

4 is an illustration along the line I-1' in FIG. 1 in the direction of the arrow, and FIG. 5 is an illustration in the direction of the arrow along the line nn' in FIG.

FIG. 6 shows the driven protrusion 12b of the ratchet wheel 12 and the driving end 1 of the ratchet 14 when the lid body 1 is loosened.
The positional relationship with 4c is shown in a plan view.

FIG. 7 shows the flexible drive of the driven protrusion 12b of the ratchet wheel 12 and the ratchet I4 when tightening the lid body 10 and when removing the key (not shown) from the rotor 9 and releasing the locking piece. A plan view of the positional relationship between the arms 14b, 14b and the locking protrusion 15C formed on the locking protrusion 15b of the locking piece 15 is shown.

Reference numeral 1 denotes an inverted dish-shaped rotating handle, which has a cylindrical portion 1a for housing a cylinder lock S in the center and an annular handle at the lower part of the inner periphery.
A plurality of locking protrusions 1b that lock with the collar 11 (see FIG. 1) are provided, and a lock M2 is pivotally connected to the support wall 1c on the upper surface by a support shaft 3 so as to be openable and closable. A spring 4 holds the lock cover 2 in the open/closed position, and one end 4a abuts against the support wall 1c, and the other end 4b abuts against the lock M2. A pin 2a is integrally provided on the inner surface of the lock lid 2, and the pin 2a
A banking 5 is fixed to a by a washer 6 and a bush holder 7 for waterproofing. Rotating handle 1
A case 8 of a cylinder lock S is fixed in the accommodating cylindrical portion 1a, and a driving protrusion 9a of a rotor 9 is rotatably provided within the case 8 in a state of protruding from the accommodating cylindrical portion 1a.

Reference numeral 10 denotes a lid main body, which has a bottomed cylindrical shape with a screw 10a corresponding to a tank inlet (not shown) on the outer periphery 10', and a flange 10b on the upper outer periphery. By engaging the annular stopper 11 fixed to the locking protrusion 1b of the rotating handle 1 with the lower surface of the rotating handle 10b, the rotating handle 1 can freely rotate while being prevented from detaching from the lid body 10. established in

A ratchet wheel 12 is rotatably provided between the flange 10b of the lid body 10 and the rotary handle 1. A large number of ratchet teeth 12a are formed on the side wall surface 12' of the ratchet wheel 12, and a flexible locking arm is provided on a part of the flange 10b of the lid body 10. [the ratchet teeth], 2 approaching and separating from and cooperating with and non-cooperating with a. The engaging claw 10d has a tapered engaging surface 10d.
+ and a vertical engagement surface 10d2, and when the ratchet I wheel 12 rotates based on the clockwise rotation of the rotating handle 1, the ratchet tooth 12a engages with the tapered engagement surface 10d1 of the engagement pawl 10d. The lid main body 1o is rotated in the tightening direction. When the seal ring 13 comes into pressure contact with the tank inlet and the tightening reaches a predetermined degree, the rotational resistance of the lid body 10 increases, and furthermore, the rotational resistance of the lid body 10 increases and
When rotated, the flexible locking arm 1. The OC bends in a direction away from the ratchet I wheel 12, causing slippage, and the ratchet wheel 12 idles, allowing the lid body 10 to be tightened within a certain range of l·r.

Also, when the ratchet wheel 12 rotates in the reverse direction, the ratchet wheel 12
Since a12a engages with the vertical engagement surface 10d2 of the engagement claw 10d, it can be opened reliably without slipping even when the torque is large. Ratchet wheel 1
A plurality of driven protrusions 12b are provided on the inner circumferential portion of 2.

The ratchet 14 is fixed to the rotating handle 1 by fitting the concave hole 14a of the ratchet 14 into the bulge 1f formed in the housing cylinder part 1a of the rotating handle 1, and the ratchet 14 is integrated with the rotating handle 1. Rotate the target. A pair of flexible drive arms 14 extending along the outer periphery of the ratchet 14
b, 14. b are provided at symmetrical positions, and an engagement surface 14d is provided on the drive end 14c, and the drive end 14
An engagement recess 14e is formed on the inner peripheral side of c.

15 is a bottomed cylindrical locking piece, and the lid body 10
A ratchet 14 is rotatably fitted into an annular recess 15a inside the upper end thereof.

Two locking protrusions 1. on the upper end of the locking piece 15.
5b are protruded at symmetrical positions, and an engagement protrusion 15C that engages and disengages from the engagement recess 14e is formed on the locking protrusion 15b. The rotor 9 of the cylinder lock S is inside the locky puffer piece 15.
The driven engagement portion 15d is inserted into the bottom surface and engages with the drive protrusion 9a provided on the bottom surface of the rotor 9.

15d is formed symmetrically so that it has a free movement range of 906. A coil spring 16 is provided inside the locking piece 15, and one end 16b of the coil spring 16 is attached to the locking piece 15.
Insert the small hole 15f of the ratchet 14, and the other end
4f, and this locks the locking piece 15.
is biased to rotate in a direction away from the flexible drive arm 14b.

The case 8 of the cylinder lock S has an unlocking groove 8a into which the plate tumbler 9b of the rotor 9 engages, and a locking groove 8.
b are provided at 90'' intervals, and a backward drive inclined surface 8C on which the plate tumbler 9b slides is provided from the unlocking groove 8a to the locking groove i8b. 8a, the rotor 9 can be rotated to the rotor groove 8a even if the key is removed from the rotor 9 and the plate tumbler 9b protrudes (see FIG. 3(A)).

That is, if the rotary handle 1 is operated without a key, the door will be automatically locked.

In the above configuration, at the unlock position X of the cylinder lock S, as shown by the solid line in FIG. Since it engages with the engagement recess 14e in the drive end 14C of the arm 14b,
Although the locking piece 15 is biased by the coil spring 16, the locking piece 15 is prevented from automatically rotating. Therefore, in such a state, when the rotating handle 1 is rotated to loosen and open the lid body 10, and the rotating locking piece 15 is rotated (towards the right in FIG. 3 (b)), The drive end 14c is driven and the ratchet wheel 12 is engaged with the moving protrusion 12b.
By rotating the lid body 10, the lid body 10 is rotated via the engaging claw 1'Od of the lid body 10 that comes into contact with and separates from the ratchet wheel 12.

At the lock position Y of the cylinder lock S, as shown in Fig. 3 (b).
As shown by the imaginary line, the lid cannot be opened. That is, since the locking protrusion 15b of the locking piece 15 separates outward from the flexible drive arm I4b, when the locking piece 15 is rotated to the left in FIG. Since the flexible driving arm 14b is pressed while abutting against the back wall surface 14'c of Cooperation between the movable handle 1 and the lid body 10 is prevented.

Further, when the lid is closed by rotating the locking piece 15, which rotates together with the rotating handle 1, in the right direction as shown in FIG. 3(b), the flexible drive arm 14. The engagement surface 14d of the locking piece 15 is always engaged with the driven protrusion 12b, and the locking protrusion 15b of the locking piece 15 is engaged with the engagement recess 14e of the flexible drive arm 14b.
Since the engaging protrusion 15'c is engaged, the flexible drive arm 14b is in a fixed state, and in this state, if the locking piece 15 is rotated together with the rotating handle 1, the locking piece 15 is engaged. Since the locking piece 15 is rotated while the stepped portion 15'C of the convex portion pushes up the engagement surface 14d of the ratchet 14, the ratchet 1
4 rotates the ratchet wheel 12 while pushing the driven protrusion 12b of the ratchet wheel 12, and the ratchet wheel 12 loosens the lid body 10 via the engaging pawl 10d of the lid body 10. direction.

Therefore, at this time, the plate tumbler 9b of the cylinder lock S
is engaged in the unlocking groove 8a, but when the rotating handle l is rotated in the tightening direction, the locking piece 15 rotates together with the rotating handle 1 and engages the flexible drive arm 14b of the ratchet 14. The mating surface 14d is the ratchet wheel 12
The drive end 14c of the flexible drive arm 14b is displaced in the direction of expanding outward (see FIG. 7), thereby releasing the restraint by the engagement recess 14e. At the same time, the locking protrusion 15b is rotated to the imaginary line position shown in FIG. 3(b) by the coil spring 1G biasing the locking piece 15, and reaches the locked state Y. As described above, when the locking piece 15 rotates to the right, the driven engagement portion 15d drives the drive protrusion 9a, so that the rotor 9
Since the plate tumbler 9b slides on the backward drive inclined surface 8c formed in the case 8, at this time, the plate tumbler 9b is moved backward and rotated 906 times until the plate tumbler 9b engages in the locking groove 8b and reaches the locking position. (See Figure 3 (a)).

〔Effect of the invention〕

As described above, the present invention provides a ratchet wheel between the lid body having a screw on the outer periphery and the rotary handle, and transmits the operation of the rotary handle to the lid body via the ratchet wheel. A ratchet that rotates together with the rotating handle is provided, and a locking piece that is driven by the rotor of the cylinder lock provided in the rotating handle is provided in relation to the ratchet, and the ratchet is activated only when the ratchet wheel is in the unlocked state. A backward drive inclined surface for the plate tumbler is provided between the unlocking groove and the locking groove in the case of the cylinder lock into which the plate tumbler engages, and the locking piece is moved from the unlocked position to the locked position by operating the rotation handle. When the cylinder lock moves, the rotor of the cylinder lock also moves accordingly,
Since the rotor plate tumbler can be locked even in the unlocked position, there is no need for the driver to pick up the key while refueling, for example, and hand it over again to lock it.
It has the feature of being able to operate various accessories even while refueling.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, FIG. 2 is an exploded perspective view, and FIG. (b) is a plan view of the positional relationship between the locking piece, ratchet, and ratchet wheel; Figure 4 is a cross-sectional view of the main part in the direction of the arrow along line 1-1' in Figure 1; Figure 5 is the same as in Figure 1. n-n'
FIG. 6 is a plan view of the lid body when it is loosened, and FIG. 7 is a plan view of the locking piece when it is released. S...Cylinder lock, ■...Valve device, 1...Rotating handle, 8...Case, 8C...Reverse drive slope, 10...Lid body, 12...Ratchet wheel , 14... Ratchet, 15... Locking piece, 16... Coil spring.

Claims (1)

[Claims] A cylinder lock in which a rotor having a backward drive inclined surface formed in a case of the cylinder lock and a drive projection formed in the case is inserted, a rotating handle provided with the cylinder lock, and a rotating handle housed in the rotating handle. A ratchet that rotates together with the movable handle and forms an engaging surface together with a flexible drive arm that projects to the outer periphery, and a driven protrusion that engages and disengages from the engaging surface of the ratchet is formed on the inner peripheral surface and on the side wall surface. A ratchet wheel having ratchet teeth formed thereon, a lid body having a flexible locking arm that comes into contact with and separates from the ratchet teeth of the ratchet wheel, and an engaging pawl formed on the flange, a screw formed on the outer periphery of the lid body, and a lid body having an engaging pawl formed on the flange portion thereof. A locking piece that is housed in the lid body and has a locking protrusion, and a spring that biases the locking piece are provided, and when the rotor is rotated to the unlock position, the drive protrusion of the rotor engages the locking piece. When the locking protrusion of the locking piece is moved into the flexible drive arm of the ratchet, fixing the flexible drive arm and rotating the rotating handle in the tightening direction, the drive end of the ratchet is rotated. engages with the driven protrusion of the ratchet wheel, the lid body is rotated in the tightening direction by the ratchet teeth of the ratchet wheel, and the key is extracted from the rotor and the lid body is rotated together with the rotating handle in the tightening direction. When the locking piece is rotated, the locking protrusion of the locking piece, which is biased by the spring, moves outside the flexible arm of the ratchet, releasing the fixation of the flexible drive arm and allowing the rotating handle to move independently of the lid body. A fuel tank lid characterized in that a plate tumbler provided on a rotor is rotated idly, and a plate tumbler provided on a rotor slides on a backward drive inclined surface of a case and locks in a locking groove in conjunction with operation of a rotating handle, thereby enabling keyless locking operation. .