JP2018079813A - Push-up device and lid push-up structure closing energy supply port - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly form a push-up device without adopting special biasing means forming the push-up device.SOLUTION: A push-up device includes: a rod 2 which is slidably held in a case 1 fixed to the support medium B side of a push-up object M and protrudes from the case 1 to push out the push-up object M; biasing means 3 which is compressed in the case 1 by elastic deformation and biases the rod 2 in a protruding direction; lock means which is configured to push the rod 2 into a first retreat position against a biasing force of the biasing means 3 to hold the rod 2 at the first retreat position relative to the case 1 and push the rod 2 in the first retreat position into a second retreat position to release holding; and a flexible cover 4 which covers a protruding portion of the rod 2 from the case 1. A cushioning part 7 for the push-up object M is formed at a portion of the cover 4 which is located in front of a protruding end 2c of the rod 2.SELECTED DRAWING: Figure 2

Description

  In the present invention, by releasing the holding by the locking means, a pushing force is applied to the push-up object, and a gap is created between the push-up object and the push-up support so that it is easy to put a finger or the like on the push-up object. The present invention relates to a push-up device used for applications such as the above, and a fuel lid push-up structure using the push-up device.

  There exists a thing shown by patent document 1 as a raising apparatus of a fuel lid. The lifting device includes a case fixed to the vehicle body side, a rod protruding from the inside of the case by the urging of a coil spring, and a lock means for locking the rod in a retracted position. The fuel lid in the closed position is further pushed in and the lock is unlocked and the rod protrudes, so that the fuel lid in the closed position is pushed up to a position where it is easy to put a finger etc. between the outer surface of the vehicle body .

  In the lifting device of Patent Document 1, the rate of increase of the urging force of the coil spring is small at the initial stage when the rod is pushed into the case, and large at the latter stage. Thereby, in the push-up device of Patent Document 1, when the fuel lid hits the rod in the process of closing the fuel lid after refueling, the fuel lid is prevented from being pushed back by the reaction force of the coil spring.

Japanese Patent No. 5690175

  The main problem to be solved by the present invention is that the urging means constituting this type of push-up device does not have a special increase in the urging force like that of Patent Document 1 as in the case of Patent Document 1. An object of the present invention is to provide a push-up device having substantially the same function as the device.

In order to achieve the above object, in the present invention, from the first viewpoint, the lifting device is
A case fixed to the support side to be pushed up;
A rod that is slidably held in the case, protrudes from the case, and pushes out the object to be pushed up;
A biasing means that is compressed by elastic deformation in the case and biases the rod in the protruding direction;
The rod is pushed to the first retracted position against the urging force of the urging means to hold the rod in the first retracted position with respect to the case, and the rod in the first retracted position is Locking means configured to release the holding by pushing into a retracted position;
A flexible cover that covers the protruding portion of the rod from the case;
A buffer portion for the push-up target is formed at a position located in front of the protruding end of the rod in the cover.

  One aspect of the present invention is that the buffer portion is an easily elastically deformable portion that is elastically deformed using a space formed between the protruding end of the rod.

  Further, in order to achieve the above object, according to the present invention, from the second aspect, the structure for pushing up the lid for closing the energy supply opening, the object to be pushed up is a lid for closing the energy supply opening of the automobile, The support side is the vehicle body side of the automobile, the case of the push-up device is fixed to the vehicle body side, and the lid in the closed position is pushed in, thereby releasing the holding of the rod and pushing up the lid It was supposed to be like this.

  According to the present invention, the impact force when the object to be pushed up and the pushing-up device are abutted is absorbed by the buffer portion as a part of the cover, and the object to be pushed up is slightly pushed back by the reaction force at the time of this abutment, It is possible to prevent the occurrence of sound.

FIG. 1 is a cross-sectional configuration diagram of a push-up device (first example) according to an embodiment of the present invention, in which a rod is in a state of most protruding from the inside of the case. FIG. 2 is a cross-sectional configuration diagram showing a state in which the first example is fixed to the vehicle body of the automobile, with the rod in the first retracted position and the fuel lid in the closed position. FIG. 3 is an exploded perspective view of the first example. FIG. 4 is a main part perspective view showing a modified example (second example) of the configuration of the buffer part. FIG. 5 is a cross-sectional view of the main part of the second example. FIG. 6 is a main part perspective view showing a modified example (third example) of the configuration of the buffer part. FIG. 7 is a cross-sectional view of the main part of the third example. FIG. 8 is a cross-sectional view of an essential part showing a modified example (fourth example) of the configuration of the buffer portion. FIG. 9 is a cross-sectional view of a main part of the fourth example.

  Hereinafter, typical embodiments of the present invention will be described with reference to FIGS. The push-up device according to this embodiment causes the push-up force to act on the push-up object M by releasing the holding by the locking means, and the push-up object M between the push-up object M and the support B of the push-up object M. It is used for purposes such as creating a gap that makes it easy to place a finger on the surface.

  In the example shown in the figure, the push-up object M is a lid Ma (vehicle fueling port, EV (electric vehicle) or PHEV (plug-in hybrid car) power feeding port, FCV (fuel cell vehicle) hydrogen that closes the energy supply port of the vehicle. A lid that closes the filling port, etc.), and the support B is a vehicle body Ba of the automobile, and a case 1 described later is fixed to the vehicle body Ba side, and the lid Ma in the closed position is pushed in. The holding of the rod 2 described later is released, and the lid Ma is pushed up.

  The lid Ma has a pivot shaft (not shown) on the vehicle body Ba side so as to be pivotable in the direction of arrow F in FIG. The lid Ma receives a biasing force in the direction of the arrow f1 in FIG. 2 in the closed position shown in FIG. 2 by a biasing means (not shown). In this state, the rod 2 described later is held by the locking means. The pushing force of the push-up device is not acted on the lid Ma. In the state of FIG. 2, the outer surface of the lid Ma is flush with the outer surface (not shown) of the vehicle body Ba.

  When the lid Ma in the closed position is pushed in toward the direction f1 in FIG. 2, the rod 2 described later is pushed to the second retracted position described later, and the holding of the locking means is released. When this release is performed, a rod 2 described later protrudes to the position shown in FIG. 1, and the protrusion lid Ma is opened to the predetermined position in the direction f2 in FIG.

  When the lid Ma is further opened in the direction f2 in FIG. 2 by placing a finger or the like on the free end of the lid Ma pushed to the predetermined position by being pushed by the rod 2 described later, it is not shown in the process of this opening operation. The urging direction of the urging means is changed from the f1 direction to the f2 direction, and the lid Ma is rotated by the urging force of the urging means (not shown) to the predetermined fully open position away from the push-up device.

  When the lid Ma in the fully open position is closed, the biasing direction of a biasing means (not shown) is switched from the f2 direction to the f1 direction in the process of the closing operation, and the lid Ma moves the rod 2 described later to the position shown in FIG. It hits the push-up device that makes it stand up and waits.

  In the push-up device according to this embodiment, the impact force when the lid Ma and the push-up device abut in the closing operation of the lid Ma is absorbed by the buffer 7 described later, and the lid Ma opens at the abutment. The situation is prevented from being pushed back slightly by the reaction force in the direction or generating a low-pitched sound at the end of this contact.

  The push-up device according to this embodiment includes a case 1, a rod 2, an urging means 3, a lock means, and a cover 4.

  The case 1 is fixed to the support B side of the push-up object M. In the illustrated example, the case 1 has a configuration in which an outer cylindrical body 10 and an inner cylindrical body 11 are combined. The total length of the inner cylinder 11 is about half of the total length of the outer cylinder 10. In the inner cylinder 11, the cylinder lower end 11b of the inner cylinder 11 abuts against a step 10c formed in the middle of the outer cylinder 10 in the cylinder axis direction from the cylinder upper end 10a of the outer cylinder 10 into the outer cylinder 10. It is inserted to the position and integrated with the outer cylinder 10. A flange 11c that prevents the rod 2 from being pulled out is formed on the cylinder upper end 11a of the inner cylinder 11, and the rod 2 has a flange 2a formed at a middle position in the full length direction as a flange of the inner cylinder 11. It protrudes from the inside of the case 1 to a position where it abuts against 11c from below (FIG. 1). An engaging claw 10 d for fixing the case 1 to the support B is formed on the outer side of the outer cylindrical body 10.

 The rod 2 is held in the case 1 so as to be slidable in the vertical direction in FIG. 1 and protrudes from the case 1 to push out the push-up object M.

  The urging means 3 is compressed by elastic deformation in the case 1 and urges the rod 2 in the protruding direction. In the illustrated example, the biasing means 3 abuts the lower end 3c of the spring against the lower end 10b of the outer cylindrical body 10, the upper end 3b of the spring abuts against a sleeve 6 described later, and this sleeve 6 and the rotor 5 described later are connected. The compression coil spring 3a is used to apply an urging force to the rod 2 by interposing it. However, the urging means 3 may be of any construction that urges the rod 2 upward in FIG. 1, and various known springs and elastic materials can be used.

  The locking means holds the rod 2 in the first retracted position with respect to the case 1 by pushing the rod 2 to the first retracted position against the urging force of the urging means 3, and the first The holding is released by pushing the rod 2 in the one retracted position to the second retracted position.

  In the example shown in the figure, the locking means is composed of part of the rod 2, part of the case 1, the rotor 5, and the sleeve 6.

  A part of the case 1 constituting the locking means is the inner cylinder 11. A guide groove 11d is provided on the inner surface of the inner cylinder 11 along the cylinder axis direction, and at the side of the groove 11e located on the cylinder lower end 11b side of the inner cylinder 11 in the guide groove 11d. A locking step 11f is formed.

  The rotor 5 is combined with the rod 2 in a state in which the rod 2 is passed through a hole 5a provided at the center thereof from the lower end side and rotation about the rod 2 is possible. On the upper surface of the rotor 5, a cam portion 5 b is formed for a cam portion (not shown) formed on the lower surface of the flange 2 a of the rod 2.

  The sleeve 6 is packaged under the flange 2a of the rod 2 so that the rotor 5 is sandwiched between the sleeve upper end 6a and the flange 2a of the rod 2.

  The rod 2 is configured to slide with the sliding contact protrusion 2b formed at the protruding end of the flange 2a placed in the guide groove 11d.

  The rotor 5 includes an engagement protrusion 5c on the outer peripheral portion.

  In the first retracted position, the engaging protrusion 5c of the rotor 5 is engaged with the locking step 11f, and the urging force of the urging means 3 acts on the rod 2, but the rod 2 is in the first retracted position. Is positioned.

  When the protruding end 2c of the rod 2 is pushed from the first retracted position and the rod 2 is pushed into the second retracted position, the rotor 5 is slightly moved in the pushing process due to the shape of the locking step 11f and the engaging protrusion 5c. The locking step 11f is disengaged from the engagement protrusion 5c, and the engagement protrusion 5c is positioned directly below the groove opening 11e of the guide groove 11d.

  When the pushing is stopped from the state in which the rod 2 is pushed to the second retracted position, the biasing means 3 biases the engaging projection 5c of the rotor 5 into the guide groove 11d, and the rod 2 reaches the position shown in FIG. It protrudes from inside the case 1.

  When the rod 2 is pushed to the first retracted position from the state of FIG. 1, the engaging protrusion 5c of the rotor 5 comes out again below the groove 11e of the guide groove 11d. At the same time, due to the action of the cam portion 5b, the rotor 5 is slightly rotated to the position where the engagement protrusion 5c is engaged with the locking step 11f, and the rod 2 is returned to the first retracted position. The

  The locking means holds the rod 2 at the first retracted position with respect to the case 1 by pushing the rod 2 to the first retracted position against the urging force of the urging means 3, and It is only necessary to have a function of releasing the holding by pushing the rod 2 in the one retracted position to the second retracted position. Various known types such as the heart cam type described in FIG. 24 of Japanese Patent No. 5690175 The locking means can be used.

  The cover 4 has flexibility so as to cover a protruding portion of the rod 2 from the case 1. Such a cover 4 is typically made of rubber or plastic with rubber-like elasticity.

  In the illustrated example, the cover 4 has a configuration in which the cylinder lower end 4b is opened, and the cylinder side portion 4c located between the cylinder upper end 4a and the cylinder lower end 4b is formed in a bellows hose shape. In the illustrated example, the cover 4 is configured to have a circular cross section in a direction perpendicular to the cylinder axis at any position in the cylinder axis direction, but the cover 4 is formed from the case 1 in the rod 2. It is sufficient if it has flexibility to cover the protruding portion, and its specific shape is not limited to that shown in the drawing.

  On the inner side of the cylinder lower end 4b of the cover 4, a rotating rod 4d is formed. In the state where the closed cylinder upper end 4 a is abutted against the protruding end 2 c of the rod 2, the cover 4 is provided with the circumferential rod 4 d in the circumferential groove 10 e formed outside the cylinder upper end 10 a of the outer cylinder 10 of the case 1. By fitting it, it is integrated with the case 1 and covers the protruding portion of the rod 2 from the case 1. In the illustrated example, the projecting end 2c of the rod 2 is formed with a circular groove 2d, and a circular rod 4e formed inside the cylinder upper end 4a of the cover 4 is fitted into the circular groove 2d so that the rod 2 protrudes. The end 2c and the cylinder upper end 4a of the cover 4 are integrated.

  In this embodiment, the buffer portion 7 for the push-up object M is formed at a position of the cover 4 positioned in front of the protruding end 2c of the rod 2.

  In the first example shown in FIGS. 1 to 3, the buffer portion 7 has a short cylindrical shape. In the first example, the buffer portion 7 is a first portion 7a that is in contact with the protruding end 2c of the rod 2 and a space S is formed between the first portion 7a and the first portion 7a is positioned in front of the protruding end 2c of the rod 2. It has the structure provided with the 2 part 7b and the surrounding side part 7c located between this 1st part 7a and the 2nd part 7b. A hole 7d communicating with the space S is formed at the center of the first portion 7a. In the first example, due to the space S, a location positioned above the first portion 7a is easily elastically deformed when the lid Ma as the push-up object M hits, and this location is an easily elastically deformable portion. It has become.

  In the second example shown in FIGS. 4 and 5, the buffer portion 7 is constituted by a pair of protrusions 7e and 7e. The protrusion 7 e protrudes upward from the outer surface of the cylinder upper end 4 a of the cover 4. The center axis x of the rod 2 is positioned between the pair of protrusions 7e, 7e. In the second example, flanges 7f are formed at the protruding ends of the pair of protrusions 7e, 7e, respectively, projecting in the direction along the central axis x. In this second example, when the lid Ma as the push-up object M hits the pair of protrusions 7e, 7e due to the space S between the pair of protrusions 7e, 7e, the pair of protrusions 7e, 7e. Are easily elastically deformed, and the pair of protrusions 7e and 7e are each an easily elastically deformable portion.

  In the third example shown in FIGS. 6 and 7, the buffer portion 7 is constituted by a pair of protrusions 7g and 7g. The protrusion 7g protrudes upward from the outer surface of the upper end of the cylinder of the cover 4. The central axis of the rod 2 is positioned between the pair of protrusions 7g and 7g. In this third example, when the lid Ma as the push-up object M hits the pair of projections 7g, 7g by the space S between the pair of projections 7g, 7g, the pair of projections 7g, 7g Are easily elastically deformed, and the pair of protrusions 7g and 7g are respectively elastically deformable portions.

  In the fourth example shown in FIGS. 8 and 9, the buffer portion 7 has a first portion 7 h that contacts the protruding end 2 c of the rod 2 and a space S formed between the first portion 7 h and the protruding portion of the rod 2. The second portion 7j positioned in front of the end 2c and a hinge piece 7m between the first portion 7h and the second portion 7j for connecting the two portions 7j are provided. The hinge pieces 7m are respectively provided on both sides of the central axis x of the rod 2. The hinge piece 7m includes a connecting end 7n with respect to the outer edge 7i of the first portion 7h, a connecting end 7o with respect to the outer edge 7k of the second portion 7j, and a bent that positions the bent inner side between the connecting ends 7n and 7o on the center line x side. A center 7p, and the bent center 7p is positioned outward from the outer edge 7i of the first portion 7h and the outer edge 7k of the second portion 7j. When the second portion 7j comes into contact with the lid Ma as the push-up object M, the hinge piece 7m is elastically deformed so as to reduce the angle θ inside the bending at the bending center 7p. That is, in the fourth example, the hinge piece 7m is an easily elastically deformable portion. In this fourth example, when the lid Ma is pushed in from the state where the lid Ma is in the closed position and the rod 2 is in the first retracted position, as shown in FIG. 8, the first portion 7h and the second portion 7j The hinge piece 7m is further elastically deformed to a position where the first portion 7h and the second portion 7j are brought into close contact with each other. The moderation feeling of the operation is improved.

  In the illustrated example, the buffer portion 7 is formed integrally with the cover 4, but the cover 7 is provided with rubber or rubber-like elasticity at a position located in front of the protruding end 2 c of the rod 2. The buffer portion 7 may be formed by adhering another member made of a material that easily causes elastic deformation, such as a hollow member made of plastic or a sponge member.

  Of course, the present invention is not limited to the embodiments described above, but includes all embodiments that can achieve the object of the present invention.

M object to be pushed up B support 1 case 2 rod 2c protruding end 3 biasing means 4 cover 7 buffer part

Claims (3)

A case fixed to the support side to be pushed up;
A rod that is slidably held in the case, protrudes from the case, and pushes out the object to be pushed up;
A biasing means that is compressed by elastic deformation in the case and biases the rod in the protruding direction;
The rod is pushed to the first retracted position against the urging force of the urging means to hold the rod in the first retracted position with respect to the case, and the rod in the first retracted position is Locking means configured to release the holding by pushing into a retracted position;
A flexible cover that covers the protruding portion of the rod from the case;
A push-up device in which a buffer portion for the push-up object is formed at a position located in front of the protruding end of the rod in the cover.   The push-up device according to claim 1, wherein the buffer portion is an easily elastically deformable portion that is elastically deformed using a space formed between the protruding end of the rod.   The object to be pushed up is a lid that closes an energy supply port of the automobile, the support side is a vehicle body side of the automobile, and the case of the lifting device according to claim 1 or 2 is fixed to the vehicle body side, A structure for pushing up a lid for closing an energy supply opening, wherein the lid is released by releasing the holding of the rod by pushing the lid in a closed position.

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