JP2011093364A - Goose-neck type hinge and fuel lid equipped with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a goose-neck type hinge capable of stabilizing quality by suppressing variation of sliding resistance between a curl portion of a rotation side hinge and a hinge pin to be small. <P>SOLUTION: The goose-neck type hinge is a member rotatably supporting a fuel lid covering a fuel injection portion opening to a vehicle side portion. A hinge pin is rotatably supported by curl portions 4b formed at tip end portions of two arm portions 4a of a rotating side hinge 4 fixed on the fuel lid side, and an axial direction both end portions of the hinge pin are fixed on a fixing side hinge fixed on a vehicle body side. In the goose-neck type hinge, the curl portions 4b formed at the tip end portions of the two arm portions 4a of the rotating side hinge 4 are coupled and integrated with each other. For example, the curl portions 4b are coupled and integrated by a bridge 4c laid between both. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a gooseneck type hinge that rotatably supports a fuel lid that covers a fuel injection portion that opens to a side of a vehicle, and a fuel lid including the same.

  A fuel injection part for supplying fuel to the fuel tank is opened on the side of the vehicle body, and this fuel injection part is covered with a fuel lid that can be opened and closed. Can be opened. Here, the fuel lid is rotatably supported on the vehicle body by a hinge. However, in the fuel lid using the gooseneck type hinge as the hinge, a large opening angle can be secured from the structural characteristics of the gooseneck type hinge.

  By the way, the gooseneck type hinge is configured by connecting a fixed side hinge fixed to the vehicle body side and a rotation side hinge fixed to the fuel lid side so as to be rotatable by a hinge pin. As shown in FIG. The moving-side hinge 4 is formed into a gooseneck shape by press-molding a metal plate, and a curled portion 4b is formed at each tip portion of the two arm portions 4a formed thereon, and hinge pins are provided on these curled portions 4b. 5 is rotatably supported. In addition, in order to avoid interference with a leaf spring (not shown), it is necessary to form a rectangular opening (thickening portion) 4d in the rotation side hinge 4, and for this purpose, arm portions 4a are formed on both sides of the opening 4d. In order to increase the overall rigidity, beads 4e extending to both arm portions 4a are formed on both sides of the rotation side hinge 4.

  Such a gooseneck type hinge is manufactured through the steps shown in FIGS.

  6 (a) to 6 (e) are explanatory views showing the manufacturing method of the gooseneck type hinge in the order of the steps. First, as shown in FIG. A blank material 4 ′ obtained by cutting into a shape is prepared (blank process), and the blank material 4 ′ is substantially shaped as shown in FIG. 6B (the next process (curl process) shown in FIG. 6C. ) Is press-molded into a shape capable of curling each tip of the bifurcated arm 4a (molding step).

  Next, as shown in FIG. 6 (c), a hinge pin 5 is placed at the tip of both arm portions 4a, curled so as to surround the hinge pin 5, and a cylindrical curled portion is placed at the tip of each arm portion 4a. By forming 4b, the hinge pin 5 is rotatably supported on both curled portions 4b (curling step). Then, as shown in FIG.6 (d), the rotation side hinge 4 is obtained by carrying out the additional shaping | molding (bending shaping | molding) of the arm part 4a to a gooseneck shape by press molding (bending process). Finally, as shown in FIG. 6 (e), the gooseneck hinge 2 is obtained by welding both axial ends of the hinge pin 5 to the fixed hinge 3 bent into an L shape by press molding (welding process). ). In addition, in FIG.6 (e), 15 shows a welding location.

  The fixed-side hinge 3 of the gooseneck hinge 2 manufactured through the above steps is fixed to the vehicle body side, the rotation-side hinge 4 is fixed to the fuel lid side, and the fuel lid rotates around the hinge pin 5 together with the rotation-side hinge 4. It moves to open and close the fuel injection part that opens to the side of the vehicle body.

JP-A-60-259527

  By the way, in the rotation side hinge 4 shown in FIG. 5 of the gooseneck type hinge 2 manufactured through the steps shown in FIGS. 6A to 6E, the curled portion 4b is formed due to the shape thereof. It can not be done at the end. That is, after the curled portion 4b is formed in the curling step shown in FIG. 6C, the arm portion 4a needs to be additionally formed (bend-formed) in a gooseneck shape in the bending step shown in FIG. 6D.

  However, as described above, when the curled portion 4b is formed in the manufacturing of the rotating side hinge 4 and additional molding is performed on the arm portion 4a, the curled portion 4b is deformed or the axes of the curled portions 4b are displaced from each other. As a result, the variation in the sliding resistance between the curled portion 4b and the hinge pin 5 is large, and as a result, the variation in the opening / closing torque of the fuel lid is large and the quality is not stable. Incidentally, the cause of the deformation of the curled portion 4b of the rotating side hinge 4 or the deviation of the axes of the curled portions 4b is that the length of the arm portion 4a is long and the curled portion 4b is an additional molded portion (FIG. 5). For example, because the bead 4e for reinforcement is formed in the additional molding portion, and additional molding is not simple bending.

  Here, the sliding resistance value between the curl portion 4b and the hinge pin 5 of the gooseneck type hinge 2 having the conventional rotating side hinge 4 shown in FIG. 5 (a value proportional to the opening / closing torque of the fuel lid, the unit is g). FIG. 7A shows the frequency distribution (number) of the variation in FIG. 7. As shown in the figure, the sliding resistance value varies widely in the range of 0 g to 180 g.

  The present invention has been made in view of the above problems, and the object of the present invention is to make it possible to stabilize the quality by minimizing variation in sliding resistance between the curl portion of the rotation side hinge and the hinge pin. It is an object of the present invention to provide a mold hinge and a fuel lid capable of stabilizing quality by suppressing variation in opening and closing torque.

  In order to achieve the above object, the invention according to claim 1 is a member that rotatably supports a fuel lid that covers a fuel injection portion that opens to a vehicle side portion, and is a rotation-side hinge that is fixed to the fuel lid side. A gooseneck type hinge comprising: a hinge pin rotatably supported by a curl portion formed at each tip of each of the two arm portions; and both axial ends of the hinge pin fixed to a fixed hinge fixed to the vehicle body side The curl portions formed at the respective distal end portions of the two arm portions of the rotation side hinge are connected and integrated with each other.

  According to a second aspect of the present invention, in the first aspect of the present invention, the curled portions are connected and integrated by a bridge erected between the curled portions.

  According to a third aspect of the present invention, in the first aspect of the present invention, the entirety including the curled portion is integrally integrated.

  A fuel lid according to a fourth aspect includes the gooseneck type hinge according to any one of the first to third aspects.

  According to the first to third aspects of the present invention, since the curled portions formed at the respective distal end portions of the two arm portions of the rotation side hinge constituting the gooseneck type hinge are connected and integrated with each other, the rigidity of the arm portion is increased. Even if additional molding is performed on the arm after molding the curled part in the manufacture of the hinge on the rotating side, deformation of the curled part and deviation between the axial centers of both curled parts can be kept small. The variation in the sliding resistance between the curled portion and the hinge pin is suppressed to be small, and the quality of the gooseneck hinge can be stabilized.

  According to the fourth aspect of the present invention, since the variation in sliding resistance between the curl portion of the gooseneck type hinge and the hinge pin is suppressed as described above, the variation in the opening / closing torque of the fuel lid provided with this gooseneck type hinge is also small. It is suppressed and the quality of the fuel lid is stabilized.

It is a plane sectional view of a fuel injection part of vehicles showing a fuel lid concerning the present invention. It is the perspective view which looked at the gooseneck type hinge which concerns on Embodiment 1 of this invention, and a fuel lid provided with the same from the back surface side. (A) is a perspective view of the rotation side hinge of the gooseneck type hinge concerning Embodiment 1 of this invention, (b) is a top view of the metal plate (blank material) cut by the expansion | deployment shape of the rotation side hinge It is. (A) is a perspective view of the rotation side hinge of the gooseneck type hinge concerning Embodiment 2 of this invention, (b) is a top view of the metal plate (blank material) cut by the unfolded shape of the rotation side hinge It is. It is a perspective view of the rotation side hinge of the conventional gooseneck type hinge. (A)-(e) is explanatory drawing which shows the manufacturing method of the conventional gooseneck type hinge in the order of the process. (A) is a frequency distribution diagram of the variation of the sliding resistance value of the conventional gooseneck type hinge, and (b) is a frequency distribution diagram of the variation of the sliding resistance value of the gooseneck type hinge according to the present invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

<Embodiment 1>
1 is a plan sectional view of a fuel injection portion of a vehicle showing a fuel lid according to the present invention, FIG. 2 is a perspective view of a gooseneck hinge according to Embodiment 1 of the present invention and a fuel lid provided with the same, as viewed from the back side, FIG. 3A is a perspective view of the rotation-side hinge of the gooseneck hinge according to Embodiment 1 of the present invention, and FIG. 3B is a metal plate (blank material) cut into a developed shape of the rotation-side hinge. ).

  As shown in FIG. 1, an opening 10 a is formed in a rear fender panel 10 that constitutes a vehicle body side portion of a vehicle, and an opening flange portion formed on the periphery of a filler base 11 on the inner peripheral surface of the opening 10 a. 11a are stacked and welded, and a concave fuel injection portion 12 is formed on the side of the vehicle body. One end of a fuel tube 13 is connected to the filler base 11, and the other end of the fuel tube 13 is connected to a fuel tank (not shown). A fuel injection port at one end of the fuel tube 13 is opened to the fuel injection unit 12, and a filler cap 14 is detachably attached to the fuel injection port by engagement.

  Thus, the fuel injection portion 12 that opens to the side of the vehicle body is opened and closed by the fuel lid 1 according to the present invention. The fuel lid 1 is rotatably supported by the vehicle body by the gooseneck hinge 2 according to the present invention. ing. In FIG. 1, the left side is the front of the vehicle, and the fuel lid 1 is of a front opening type so that it can be closed naturally by wind pressure even when the vehicle travels with this opened.

  As shown in FIG. 2, the fuel lid 1 is configured as a double structure with a substantially elliptical outer panel 1 </ b> A and a rectangular frame-shaped inner panel 1 </ b> B welded to the inner side (rear surface) of the outer lid 1 </ b> B. A lock member 1a constituting a part of a lock mechanism (not shown) is erected at an end portion at a substantially right angle toward the inner side of the vehicle body.

  As shown in FIG. 1, the gooseneck type hinge 2 includes a fixed side hinge 3 fixed to the front inner surface of the filler base 11 and a gooseneck-type rotation fixed to the inner surface of the front end portion of the inner panel 1B of the fuel lid 1. The moving side hinge 4 is rotatably connected by a hinge pin 5, and a U-shaped leaf spring 6 is interposed between the fixed side hinge 3 and the rotating side hinge 4. Accordingly, the rotation-side hinge 4 and the fuel lid 1 to which the rotation-side hinge 4 is fixed are supported so as to be rotatable about the hinge pin 5 in the direction of arrows ab in FIG. 1 and are opened by the leaf spring 6 about the hinge pin 5. It is biased in the direction of arrow a in the figure. The fuel lid 1 closes the fuel injection part 12 as shown in FIG. 1 except when refueling the fuel tank, and the closed state is locked by a lock mechanism (not shown).

  Thus, when fuel is replenished to a fuel tank (not shown), if the driver operates a lever (not shown) or the like from the passenger compartment to unlock the fuel lid 1 by the lock mechanism, the fuel lid 1 is moved to the leaf spring 6. It is rotated about the hinge pin 5 by the urging force and opens by a predetermined angle. Then, for example, a staff at a gas station fully opens the fuel lid 1 that is half-opened, removes the filler cap 14, inserts an injection gun (not shown) for fuel injection into the fuel inlet of the fuel tube 13, and supplies fuel from the fuel tube 13 (not shown). Pour into the fuel tank.

  When the fuel tank is replenished as described above, after the filler cap 14 is attached to the fuel tube 13, the fuel lid 1 is resisted against the urging force of the leaf spring 6 and the hinge pin 5 is centered on the arrow b in FIG. When it is rotated in the direction and closed as shown in FIG. 1, the closed state of the fuel lid 1 is locked by a lock mechanism (not shown), and the fuel supply operation is completed.

  Next, the structure of the rotation-side hinge 4 of the gooseneck hinge 2 according to the present invention will be described with reference to FIG. In FIG. 3, the same elements as those shown in FIG.

  The rotation-side hinge 4 shown in FIG. 3A is a blank material 4 ′ obtained by cutting the metal plate into the shape shown in FIG. 3B (the developed shape of the rotation-side hinge 4) in the blank process. 6B, the curling process shown in FIG. 6C and the bending process shown in FIG. 6D are performed to form a gooseneck shape.

  Thus, the curled portions 4b are formed at the respective distal end portions of the two arm portions 4a of the rotating side hinge 4 formed in a gooseneck shape through the same process as described above. This embodiment is characterized in that both curled portions 4b are connected and integrated by a bridge 4c installed on both. The leaf spring 6 (see FIGS. 1 and 2) is housed in a rectangular opening (thickening portion) formed between both arm portions 4a of the rotation side hinge 4, in other words. As a result of forming the opening 4d for accommodating the leaf spring 6, two arms 4a are formed on the rotation side hinge 4, and the rotation side hinge 4 is provided with a higher rigidity. Beads 4e extending to both arm portions 4a are formed along both sides.

  As described above, since the curled portions 4b formed at the respective distal end portions of the two arm portions 4a of the rotation side hinge 4 are connected and integrated with each other by the bridge 4c, the rigidity of the arm portion 4a is enhanced by the bridge 4c, Even when the arm portion 4a is additionally molded after the curled portion 4b is molded in the manufacture of the rotating side hinge 4, the deformation of the curled portion 4b and the deviation between the 4b axes of both curled portions can be suppressed to a small extent. For this reason, the variation in the sliding resistance between the curled portion 4b and the hinge pin 5 is suppressed to be small, the variation in the opening / closing torque of the fuel lid 1 rotatably supported by the gooseneck hinge 2 is also suppressed, and the gooseneck hinge 2 And stabilization of the quality of the fuel lid 1 provided with this is achieved.

  Here, the sliding resistance value between the curl portion 4b of the gooseneck type hinge 2 having the pivot side hinge 4 according to the present invention shown in FIG. 3A and the hinge pin 5 (not shown in FIG. 3A) ( FIG. 7 (b) shows the frequency distribution (number) of the variation in g), which is proportional to the opening / closing torque of the fuel lid 1, and is clear in comparison with the conventional result shown in FIG. 7 (a). As can be seen, according to the gooseneck hinge 2 according to the present invention, the variation in the sliding resistance value can be suppressed to a narrow range of 20 g to 70 g.

  Furthermore, in the welding process, when the welding portion 15 shown in FIG. 6E is welded by resistance welding, the axial end portion of the hinge pin 5 is welded by being pressed by the welding electrode, so that the hinge pin 5 is deformed. I will receive it. However, in the present embodiment, the curled portions 4b formed at the respective ends of the two arm portions 4a of the rotation-side hinge 4 are connected and integrated with each other by the bridge 4c. Therefore, the rigidity of the both arm portions 4a is determined by the bridge 4c. The deformation of the hinge pin 5 is kept small. For this reason, the effect that the variation of the opening-and-closing torque of the fuel lid 1 can also be suppressed small is acquired.

<Embodiment 2>
Next, a gooseneck hinge according to Embodiment 2 of the present invention will be described with reference to FIG.

  4, (a) is a perspective view of a rotation side hinge of a gooseneck type hinge according to Embodiment 2 of the present invention, and (b) is a metal plate (blank material) cut into a developed shape of the rotation side hinge. In this figure, the same elements as those shown in FIGS. 3A and 3B are denoted by the same reference numerals, and description thereof will be omitted below.

  In the first embodiment, both the arm portions 4a of the rotation-side hinge 4 are connected and integrated by the bridge 4c. However, in the present embodiment, the end portions of both the arm portions 4a of the rotation-side hinge 4 are shared. It is characterized by being connected and integrated by one curled portion 4b. The rotation-side hinge 4 according to the present embodiment is a blank material 4 ′ obtained by cutting a metal plate into the shape shown in FIG. 4B (deployed shape of the rotation-side hinge 4) in the blank process. On the other hand, a gooseneck shape is formed by performing the forming step shown in FIG. 6B, the curl step shown in FIG. 6C, and the bending step shown in FIG. 6D.

  Thus, also in the present embodiment, the rigidity of the arm portion 4a of the rotation-side hinge 4 is enhanced by the one common curl portion 4b, and the arm after the curl portion 4b is formed in the manufacture of the rotation-side hinge 4 Even if additional molding is performed on the portion 4a, the deformation of the curled portion 4b and the shift between the axial centers of both the curled portions 4b can be suppressed to be small, and variation in sliding resistance between the curled portion 4b and the hinge pin 5 can be suppressed to be small. . As a result, variation in the opening / closing torque of a fuel lid (not shown) that is rotatably supported by the gooseneck hinge 2 according to the present embodiment can be suppressed to be small, and the quality of the gooseneck hinge 2 and the fuel lid provided therewith can be stabilized. The same effect as in the first embodiment can be obtained. Further, the same effects as those of the first embodiment can be obtained in the welding process.

  In the above embodiment, the U-shaped leaf spring 6 is used as the biasing means for biasing the fuel lid 1 in the opening direction. However, the turnover in which the biasing direction is reversed during the opening operation of the fuel lid 1 is used. A spring of the formula may be used.

DESCRIPTION OF SYMBOLS 1 Fuel lid 1A Outer panel of fuel lid 1B Inner panel of fuel lid 1a Lock member of fuel lid 2 Gooseneck type hinge 3 Fixed side hinge 4 Rotating side hinge 4 'Rotating side hinge blank 4a Rotating side hinge arm 4b Rotating side Curled portion of hinge 4c Bridge of rotating side hinge 4d Opening portion of rotating side hinge 4e Bead of rotating side hinge 5 Hinge pin 6 Leaf spring 10 Rear fender panel 10a Opening portion of rear fender panel 11 Filler base 11a Opening flange portion of filler base 12 Fuel Injection Portion 13 Fuel Tube 14 Filler Cap 15 Weld Portion

Claims (4)

A curling portion formed on each end of two arm portions of a rotation-side hinge fixed to the fuel lid side, which is a member that rotatably supports a fuel lid that covers a fuel injection portion that opens to a vehicle side portion. In the gooseneck type hinge that is configured to support the hinge pin in a pivotable manner and to fix both axial ends of the hinge pin to the fixed-side hinge fixed to the vehicle body side,
A gooseneck type hinge characterized in that curled portions formed at respective tip portions of two arm portions of the rotating side hinge are connected and integrated with each other.   The gooseneck hinge according to claim 1, wherein the curled portions are connected and integrated by a bridge erected on both sides.   The gooseneck hinge according to claim 1, wherein the entirety including the curled portion is integrally integrated. A fuel lid comprising the gooseneck type hinge according to claim 1.

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