JPH06262Y2 - Fuel supply port spring - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention attaches a lid locked in a closed state in the opening direction by being attached in a clip type to the back surface of the lid that covers the fuel supply port. The present invention relates to a spring of a lid for a fuel supply port of an automobile for biasing.

[Conventional technology]

 3 to 5 show a conventional spring of this kind.

A hinge 5 is attached to one end of the back surface of the lid 1 that covers the fuel supply port 2 on the side surface of the body, and an externally operated lock pawl 3 is attached to the other end, and the inner panel 4 is further urged in the opening direction. A spring 10 is attached in a clip type.

This spring is a hinge end 1a of the lid 1 on the inner panel 4.
So that the strip 4a along the
A substrate 13 made of synthetic resin integrally formed with 11 and 12 facing each other on both sides, and two integrally formed on both sides along a strip 4a at the end opposite to the hinge end 1a of this substrate. Biasing claw
A plate composed of 14 and one side surface 16a attached to the locking portion 13a on the back surface of the board 13 and the other side surface 16b bent at an acute angle so as to separate from the hinge end side of the back surface of the board 13. And a spring 16.

The biasing claw 14 is formed of an arm 14a that exhibits elasticity in the bending direction and a locking portion 14b that engages with the arch-shaped edge portion 4b of the strip 4a. Then, the width of the side wall 11a of the groove 11 is sufficiently wide, whereas the width of the side wall 12a of the groove 12 is small so that the strip 4a can be engaged with both the grooves 11 and 12 of the substrate 13 from the side opposite to the hinge end. When the biasing claw 14 is bent from the position indicated by the chain double-dashed line in FIG. 4 and locked to the edge portion 4b, the groove 12 is biased toward the anti-hinge end direction by the reaction force, and the groove 12 is stably stabilized. It is retained and prevents the strip 4a from disengaging from its narrow sidewall 12a.

Further, an L-shaped hinge shaft 5b of the hinge 5 fixed to the inner panel 4 has a lower end screwed around the fuel supply port 2 provided in the recess 9a of the body side surface 9 (FIG. 2). The lid 1 can be opened and closed by being pivotally supported by the leaf 5a. And the free end 16c of the leaf spring 16
Is attached to the fuel pipe 7 in the vicinity of the fuel supply port 2 and can come into contact with the upper surface of the seal rubber 8 close to the hinge leaf 5a in a closed state. As a result, the lid 1 is biased in the opening direction by the reaction force of the spring 10 that is pressed against the body side surface 9 in the closed state in the same plane as the body side surface 9, and the lid 1 can be opened properly by the opening operation of the lock claw 3 from the outside. Let it be done.

[Problems to be solved by the device]

However, as shown in FIG. 5, the leaf spring 16 is closed.
When compressed in this way, the substrate 13 tends to displace in the hinge end direction, that is, the direction of arrow A, against the urging force of the urging claw 14. Therefore, there are cases in which the strip 4a is not completely assembled in the groove 12, or the strip 4a is disengaged in the process of repeating opening and closing, becomes free from the groove 12, and the substrate 13 drops downward. is there.

Therefore, an object of the present invention is to reliably prevent the clip mounting type spring of this kind from falling off.

[Means for Solving the Problems]

According to the present invention, the lid (1) supported by the hinge around the fuel supply port (2) provided in the recess (9a) of the body side surface (9) is opened at the closed position flush with the body side surface (9). A lid spring (10) for a fuel supply port, which is attached to a strip (4a) formed along the hinge end (1a) on the back surface of the lid (1) for biasing in a direction, Grooves (11, 1) facing each other so that the strip (4a) can be engaged.
The synthetic resin substrate (13) provided with (2) and the substrate (1) so as to elastically bias the substrate (13) in the direction opposite to the hinge end (1a).
The urging claw 14 formed in 3) and one side surface are fixed to the back surface of the substrate (13), the other side surface is bent from the hinge end side to the back surface of the substrate (13) in a separated state, and the free end portion is formed. Is composed of a leaf spring (16) formed so as to abut the recess (9a) around the fuel supply port (2) at the closed position of the lid (1).

In order to achieve the above-mentioned object according to the present invention, the hinge leaf (5a) provided upright on the peripheral surface portion (9a) of the fuel supply port (2) is provided at the hinge end side end of the substrate (13). The lip (21) extending so as to be placed on the tip portion (5c) of the above was integrally formed.

[Action]

Even if the base plate (13) is displaced in the hinge end direction A and the groove (12) on the hinge end (1a) side is disengaged from the strip (4a) and is rotated downward, the lip (21) causes the hinge leaf ( Since it is mounted on the tip portion (5c) of 5a), this rotation is restrained and its fall is prevented.

[Example of device]

1 and 2 show a spring 20 of a lid for a fuel supply port according to an embodiment of the present invention. In these figures, FIG.
The same reference numerals as those in FIG. 5 indicate the same parts.

In FIG. 2, the hinge leaf 5a of the hinge 5 is a hinge end.
The lower end 5e bent in the opposite direction to 1a is screwed into the recess 9a, and the front end 5c is bent in parallel with the board 13 in the hinge end direction A at substantially the same height, so that the inner panel 4 The hinge shaft 5b fixed to the
Are spaced apart from each other. And the hinge end of the substrate 13
The lip 21 is integrally projected from the wall surface of the groove 12 that is the end portion on the 1a side, and extends in a tapered shape along the curved tip curved portion 5d of the hinge leaf 5a, and the tip portion 21a is the tip in the closed state. It is designed to be placed on the section 5c.

In the spring 20 having such a structure, with the lid 1 opened, the spring 20 is moved in the direction of the hinge end 1a to engage the strip 4a in the groove 11, and is slightly returned by the reaction force of the biasing claw 14 to move the groove 12 into the groove 12. Also get involved. At this time, when properly installed, the distance S between the lip 21 and the back surface of the lid 1 is, for example, about 0.5 mm, but the strip 4a is formed in the groove 12
When it is disengaged from, the gap S ₁ becomes large, for example, about 3 mm as shown by the dotted line, and therefore, a defective operation at the time of assembly can be easily recognized based on such a gap.

When the lid 1 is closed while the spring 20 is properly attached,
The lip 21 is placed on the tip portion 5c of the hinge leaf 5a. Therefore, due to the compression of the leaf spring 16 during the opening / closing operation, the substrate 13
Is slightly displaced in the hinge end direction A, or even if the strip 4a tries to fall out of the groove 12 due to a change with time or a defect during assembly, the tip 21a of the lip 21 is in contact with the hinge leaf 5a. As a result, the downward rotation of the substrate 13 is restrained,
The strip 4a is stably held in the groove 12.

At this time, the back surface of the lip 21 is inclined corresponding to the shape of the curved portion 5d of the hinge leaf 5a, so that the displacement in the hinge end direction A is converted to the tip end direction (upward in FIG. 2), The aforementioned restraint becomes more reliable. Further, it is also convenient from the viewpoint of ensuring rigidity by the shape that makes the most effective use of the thickness of the outer wall surface of the groove 12.

[Effect of device]

As described above, by adding the lip mounted on the hinge leaf to the base plate of the clip-type spring having the opposed groove of the present invention, the spring is surely prevented from falling off. Also, by monitoring the distance between the protruding lip and the back surface of the lid, mistakes during assembly work can be easily found.

[Brief description of drawings]

FIG. 1 is a perspective view of a spring according to an embodiment of the present invention, FIG. 2 is a sectional view of a lid including the spring of the same embodiment, and FIGS. 3 to 5 show a conventional spring. FIG. 3 is a rear perspective view of the lid having the spring attached thereto, FIG. 4 is a perspective view of a spring mounting portion, and FIG. 5 is a sectional view showing a closed state of the lid with the spring attached. 1 ... Lid, 1a ... Hinge end, 2 ... Fuel supply port, 4a ... Strip, 5a ... Hinge leaf, 9a ... Recess, 10, 20 ... Spring, 11, 12 ... Groove, 13 ... Base, 14 ... Biasing claw , 16 ...
Leaf spring, 21 ... Lip.

Claims (1)

[Scope of utility model registration request] 1. A lid supported on a hinge provided around a fuel supply port in a body side surface recess is biased in an opening direction at a closed position flush with the body side surface so that the lid has a hinge end on its back surface. A spring that is attached to a strip formed along the strip and is made of a synthetic resin substrate having grooves facing each other so that the strip can be engaged, and this substrate is elastically biased in the direction opposite to the hinge end. And one side surface fixed to the back surface of the substrate, the other side surface is bent from the hinge end side to the back surface of the substrate in a separated state, and has a free end portion. A leaf spring adapted to come into contact with the periphery of the fuel supply port at the closed position of the lid. Mounted on the tip of the hinge leaf standing in the recess Spring extending lip is characterized in that it is formed integrally.