JPS6219564Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to an improvement of a fuel tank lid device equipped with a sealing member.

(Prior Art) For example, a lid device for a fuel tank for a vehicle has conventionally included a sealing member that presses against the opening edge of the injection port attached to the lid body that opens and closes the injection port of the fuel tank, and the lid body is rotated. The structure is such that it can be attached to and detached from the fuel tank by moving it using a bayonet mechanism.

(Problem to be solved by the invention) However, in the above configuration, the lid body itself is rotated each time the lid body is attached to and removed from the tank inlet, so the sealing member that rotates integrally with the lid body is The disadvantage is that the sealing member is repeatedly rubbed against the opening edge of the injection port, which causes the sealing member to wear out and the sealing performance to deteriorate quickly.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a fuel tank lid device that can prevent the seal member from rubbing against the opening edge of the inlet each time the lid body is attached or removed, thereby minimizing the wear of the seal member. It is in.

[Structure of the invention] (Means for solving the problem) The fuel tank lid device of the invention has a rotating body rotatably provided on the lid body, an engaged portion on the inlet side, and a rotating body. This device is characterized in that the movable body is provided with an engaging portion that rotates integrally with the movable body and engages with the engaged portion to engage the lid body with the inlet.

(Operation) The lid body is attached to and detached from the fuel tank by rotating a rotating body provided on the lid body to engage or disengage the engaging portion and the engaged portion. At this time, since the lid body does not rotate, the sealing member located between the lid body and the inlet does not rotate and rub against the opening edge of the inlet, but simply rubs against the opening edge of the inlet. Wear is prevented by only being pressed together.

(Example) The following Figures 1 to 4 are for the first embodiment of the present invention.
This will be explained with reference to the figures. Reference numeral 1 denotes, for example, a fuel tank of a two-wheeled vehicle, in which a flat recess 2 is formed on the upper surface thereof to accommodate a lid body, which will be described later, and a pipe body 3 is provided approximately in the center of this recess 2 to form an inlet 4. are doing. Reference numeral 5 denotes a lid body for opening and closing the inlet 4, and an annular sealing member 6 is attached to the lower surface of the lid body, which abuts on the upper end 3a of the tube body 3. Reference numeral 7 denotes a cylindrical rotor case, which is rotatably and vertically movable within a support cylinder 8 integrally formed with the lid body 5 so as to extend into the injection port 4. Reference numeral 9 denotes a well-known cylinder lock, which consists of a rotor 10 rotatably provided in a rotor case 7 and a group of lock plates 11 housed within the rotor 10.
When inserted into the slit 13 of 0 and rotated, the key 12
The rotor 10 is designed to rotate on the condition that the unevenness of the lock plate 11 matches the lock plate 11 group.
14 is an operation knob arranged on the top surface of the lid body 5;
This consists of a pair of legs 15 whose lower ends are square,
15 on both sides of the upper end of the rotor case 7.
6 and 16, the rotor case 7 can be rotated by raising and rotating the operating knob 14. 17 is a slip washer that matches the upper outer periphery of the rotor case 7, and this includes the pin 1.
Holding pieces 18, 18 for preventing the pin 16 from coming off are integrally formed at both outer sides of the pins 6, 16.
Reference numeral 19 denotes a lock pawl integrally provided on the upper outer periphery of the rotor 10. When the rotor 10 is rotated to the lock position, the lock pawl 19 is inserted into the engagement groove 20 of the operating knob 14 to raise and rotate the operating knob 14. By disabling it and rotating the rotor 10 to the unlocked position, it is pulled out from the engagement groove 20 and the operation knob 14 can be raised and rotated. Reference numeral 21 denotes a receiving case attached to the lower end of the rotor case 7, which rotates integrally with the rotor case 7, and has a pair of notches 22, 22 formed in its peripheral wall. Reference numeral 23 denotes an engagement ring that is loosely fitted into the support tube 8, and a pair of engagement claws 2 corresponding to engagement portions are provided on the outer peripheral edge of the engagement ring 23.
4 and 24, and the engaging claw 24 is made to protrude outward from the notch 22 of the receiving case 21. 2
Reference numeral 5 denotes a compression spring, which is provided between the engagement ring 23 and the inner bottom of the receiving case 21, and always urges the engagement ring 23 upward and the receiving case 21, and thus the rotor case 7, downward at all times. On the other hand, a folded wall part 26 is formed on the inner circumferential side of the upper part of the tube body 3 on the fuel tank 1 side, and a pair of insertion grooves 27, 27 extending vertically are formed in a predetermined part of the folded wall part 26 on the outer circumferential side. It is formed to bulge so that the engagement claw 24 of the engagement ring 23 can be inserted therethrough, and the insertion groove 27 is formed at the lower edge of the folded wall 26 from the lower opening edge of the insertion groove 27 in a predetermined direction. An inclined portion 28, which is an engaged portion that slopes downward, is formed to prevent upward displacement of the engaging claw 24. Such engaging claw 24 and inclined portion 2
8 is an engagement mechanism 29 that engages the lid body 1 with the injection port 4;
It constitutes. Note that 30 is an atmospheric communication hole formed in a portion of the lid body 5 that is in contact with the sealing member 6.

Next, the operation of the above configuration will be explained. First, when the lid main body 5 is in the closed state shown in FIGS. 2 and 3, the engagement claw 24 of the engagement ring 23
5 is compressed and its elastic force causes the inclined portion 2 of the tube body 3 to
8, which engages the lid main body 5 with the tube body 3, and together with this, the elastic force of the compression spring 25 urges the receiving case 21 and the entire lid main body 5 downward, and holds the lid body 5. The sealing member 6 of the lid body 5 is brought into pressure contact with the upper end 3a of the tube body 3 to seal the injection port 4. From this state, when the key 12 is inserted into the slit 13 of the rotor 10 and rotated, and the rotor 10 is rotated to the unlocked position, the lock pawl 19 is pulled out from the engagement groove 20 of the operation knob 14 and the operation knob 1 is rotated.
4 can be raised and rotated. Therefore, when the key 12 is removed, the operating knob 14 is raised to be approximately perpendicular to the lid body 5, and the operating knob 14 is grasped and rotated, the rotor case 7 and the receiving case 21 are rotated. Then, the inner edge of the notch 22 of the receiving case 21 comes into contact with the engagement claw 24 of the engagement ring 23, so the engagement ring 23 rotates and the engagement claw 24 moves into the inclined portion 2.
8, and the engaging claw 24 folds back into the wall portion 26.
The engagement mechanism 29 is disengaged from the lower end of the insertion groove 27 of the engagement mechanism 29. After that, when the operating knob 14 is pulled up, the engaging claw 24 is inserted upward into the insertion groove 27, and the lid body 5 is detached from the tube body 3 and the inlet 4 is removed.
will be released. In addition, when closing the inlet 4 with the lid body 5, the lid body 5 is engaged with the tube body 3 in the reverse procedure to the above, and after the operation knob 14 is turned down, the key 12 is inserted into the rotor 10. When inserted and rotated, the rotor 10 rotates from the unlocked position to the locked position, and the lock pawl 19 is inserted into the engagement groove 20 of the operating knob 14, thereby raising the operating knob 14 and making it impossible to rotate. Consequently, the rotor case 7 cannot be rotated, and the lid body 5 can be locked in the engaged state.

FIG. 5 shows a second embodiment of the present invention, which differs from the first embodiment in that the rotor case 7 and the support tube 8 are integrated. That is, the same parts as those in the first embodiment are given the same reference numerals, and the explanation will be omitted, and only the different parts will be explained. Reference numeral 31 is a rotor support cylinder formed integrally with the lid body 5, which has a cylinder lock. A rotor 10 having a rotor 9 is rotatably disposed. A receiving case 21 is attached to the lower end of the rotor 10 so that it rotates integrally with the rotor 10. However, in the above configuration, when the key 12 is inserted into the slit 13 of the rotor 10 and rotated, the unevenness of the key 12 and the cylinder lock 9
The rotor 10 rotates on the condition that the lock plates 11 group of It can be removed.

Note that the present invention is not limited to the embodiments described above and shown in the drawings; for example, the sealing member 6 may be provided on the upper end 3a of the pipe body 3 on the fuel tank 1 side instead of on the lid body 5 side. Various changes can be made without departing from the gist.

[Effects of the invention] As described above, although the present invention attaches and detaches the lid body by engaging and disengaging the engagement mechanism through a rotational operation, the sealing member is not rubbed when the lid body is attached or detached. Therefore, it is possible to provide a fuel tank lid device that can seal the injection port for a long period of time by minimizing deterioration of the sealing member.

[Brief explanation of the drawing]

1 to 4 show a first embodiment of the present invention, FIG. 1 is a plan view, FIG. 2 is a longitudinal cross-sectional view taken along line - in FIG. 4 is a perspective view of the injection port, and FIG. 5 is a view corresponding to FIG. 2 showing a second embodiment of the present invention. In the figure, 1 is a fuel tank, 4 is an inlet, 5 is a lid body, 6 is a seal member, 9 is a cylinder lock, 12 is a key, 24 is an engaging claw (engaging part), and 28 is an inclined part (engaged part). 29 is an engagement mechanism.

Claims (1)

[Scope of utility model registration request] a lid body that opens and closes an inlet of a fuel tank; a sealing member that is interposed between the lid body and the inlet to seal the gap therebetween; and a rotating body rotatably provided on the lid body. An engaged portion provided on the inlet side and an engaged portion provided on the rotating body rotate integrally with the rotating body to engage the engaged portion, thereby securing the lid body to the inlet. A fuel tank lid device comprising: an engaging portion.