JP2013107427A - Vehicle with jack-up bracket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lift a vehicle with a jack in a simple manner, by raising a push-up part, while interposing a jack protector between a jack-up bracket fixed to the rear surface of a lower back panel comprising a lower side of a vehicle rear part and the push-up part of a jack.SOLUTION: A weld nut 18 is fixed to the lower part 13 of the jack-up bracket 4. A weld nut bolt 15 is fixed to the jack protector 12. The weld bolt 15 is screwed to the weld nut 18, or the weld bolt 15 is releasable from the weld nut 18. When lifting the vehicle using the jack 19, the weld bolt 15 is screwed to the weld nut 18, and the jack protector 12 is secured to the lower part 13 of the jack-up bracket 4.

Description

  The present invention relates to an automobile in which a jack-up bracket is fixed to a rear surface of a lower back panel constituting a lower portion of a rear portion of a vehicle body.

  When raising or lowering a car with a jack, if the car is raised and lowered by directly applying the jack-shaped push-up part of the jack to the lower back panel, an excessive load may be applied to the lower back panel and the lower back panel may be permanently deformed. There is. Therefore, a jack-up bracket having high rigidity and strength is fixed to the rear surface of the lower back panel, and the automobile is moved up and down by applying a jack push-up portion to the jack-up bracket (see Patent Document 1).

  FIG. 1 is a perspective view showing a rear portion of an automobile, and an arrow Fr in each of the drawings including this figure shows a forward direction of the automobile, and an arrow W shows a vehicle width direction orthogonal to the forward direction Fr. The words “front” or “rear” in the present specification and claims mean front and rear with respect to the forward direction of the automobile.

  7 and 8 are cross-sectional views showing the structure of a conventional automobile, corresponding to the cross section taken along the line AA in FIG. The automobile shown here includes a floor panel 2 constituting the floor surface of the vehicle body 1, a lower back panel 3 fixed to the rear end of the floor panel 2, and a jack-up fixed to the rear surface of the lower back panel 3. Bracket 4A. The lower back panel 3 is a skeleton structure member that constitutes a lower portion of the rear portion of the vehicle body. A rear bumper 9 is disposed behind the lower back panel 3, and an upper opening of the luggage room R defined by the floor panel 2 and the lower back panel 3 is opened and closed by a luggage door 6 that is supported by the vehicle body 1 so as to be able to open and close. .

  FIG. 9 is an enlarged perspective view showing a conventional jack-up bracket 4A fixed to the lower back panel 3, and the flange portion 5A of the jack-up bracket 4A is fixed to the lower back panel 3 by spot welding. . The jack-up bracket 4A is formed in a box shape with a hollow interior so that the rigidity is increased.

  When the automobile is lifted to repair or inspect the automobile, as shown in FIG. 7, the dish-like push-up portion 20 of the jack 19 is brought below the jack-up bracket 4A, and the push-up portion 20 is raised. The automobile can be lifted by placing the push-up portion 20 against the lower part of the jack-up bracket 4A and further raising the push-up portion 20. In this way, if the automobile is lifted by applying the push-up portion 20 to the jack-up bracket 4A having high rigidity and strength, an excessive load is not applied to the lower back panel 3, and the lower back panel 3 is permanently deformed. Can be prevented.

  However, when the push-up portion 20 is brought into direct contact with the lower portion of the jack-up bracket 4A, the peripheral flange portion 23 of the push-up portion 20 interferes with the lower surface of the floor panel 2 constituting the vehicle body 1. Therefore, if the push-up portion 20 of the jack 19 is raised as it is, the floor panel 2 may be damaged or permanently deformed by the push-up portion 20.

  Therefore, when the jack-up bracket 4A is shown by a broken line in FIG. 7 and protrudes greatly downward as indicated by the symbol B, the push-up portion 20 is applied to the lower portion of the jack-up bracket 20A. There is no interference with the panel 2. However, if the jack-up bracket 4A is protruded greatly downward as described above, the protruding portion can be seen from the rear of the automobile, and the appearance of the automobile is impaired.

  Therefore, as shown in FIG. 8, a jack protector 12A having high strength and rigidity is placed on the dish-like push-up portion 20 of the jack 19 to raise the push-up portion 20, and the jack protector 12A is jacked up. After hitting the lower part of the bracket 4A, the push-up part 20 is further raised to lift the automobile. In this way, the push-up portion 20 does not interfere with the floor panel 2 when the jack 19 is lifted or lowered by the jack 19 even if the jack-up bracket 4A does not protrude greatly downward as shown by the broken line in FIG. . When the jack protector 12A is not used, the jack protector 12A is stored in, for example, an in-vehicle tool box.

  As described above, the conventional automobile is also provided between the jack-up bracket 4 </ b> A and the push-up portion 20 of the jack 19 in order to prevent the push-up portion 20 of the jack 19 from interfering with the floor panel 2 when the car is raised and lowered. A jack protector 12A is provided.

  By the way, the conventional jack protector 12A is formed in an inverted cup shape as shown in FIG. 9, and a concave groove 24A is formed on the upper wall thereof. As shown in FIG. 8, when the jack protector 12A placed on the push-up portion 20 of the jack 19 is applied to the lower part of the jack-up bracket 4A, the concave groove 24A of the jack protector 12A is matched with the lower part of the jack-up bracket 4A. . After the orientation of the jack protector 12A is adjusted in advance, the push-up portion 20 is raised, and the lower portion of the jack-up bracket 4A is fitted into the concave groove 24A of the jack protector 12A. Thereby, the jack protector 12A and the lower part of the jack-up bracket 4A can be brought into contact in a stable state.

  However, when the vehicle is lifted as described above, the direction of the jack protector 12A on the push-up unit 20 must be carefully adjusted prior to lifting the vehicle, and thus the work must be complicated.

  On the other hand, in the conventional jack-up bracket 4A, as shown in FIG. 10, a single large metal plate 25A obtained by press-molding a metal plate is replaced with portions of bent portions 26A and 27A indicated by a one-dot chain line in FIG. Thus, it was manufactured by bending in the direction of arrow C with a press. By bending the metal plate 25A in this way, as shown in FIG. 9, a box-like jack-up bracket 4A having a hollow portion formed therein can be obtained, so that its rigidity can be increased.

  However, as described above, when one large metal plate 25A obtained by press forming is further bent to manufacture the jack-up bracket 4A, the number of manufacturing steps increases, and the manufacturing cost of the jack-up bracket 4A increases. Can not escape the rising drawbacks.

JP 2009-29336 A

    SUMMARY OF THE INVENTION An object of the present invention is to provide an automobile that eliminates the above-mentioned conventional drawbacks, facilitates the work of lifting the automobile, reduces the number of manufacturing steps of the jack-up bracket, and reduces its cost. .

  In order to achieve the above object, the present invention provides a floor panel that constitutes a floor surface of a vehicle body, a lower back panel that is fixed to a rear end of the floor panel and constitutes a lower portion of the rear portion of the vehicle body, and the lower panel. A jack-up bracket fixed to the rear surface of the back panel, and the jack-up bracket and the jack-up portion of the jack so as to prevent the jack-up portion of the jack from interfering with the floor panel when the automobile is lifted by the jack. In an automobile having a jack protector disposed between, a fixing means for detachably fixing the jack protector to a lower portion of the jack up bracket is provided, and the jack up bracket has a hollow portion between two metal plates. The two metal plates are formed by a member fixed by welding so as to be formed. Suggest automobile characterized the door (claim 1).

  Further, in the automobile according to claim 1, the fixing means includes a weld nut fixed to a lower portion of the jack-up bracket by welding, and fixed to the jack protector by welding, and is screwed to the weld nut. It is advantageous if the weld bolts are made of (Claim 2).

  According to the present invention, by simply fixing the jack protector to the lower portion of the jack up bracket, the jack push-up portion can be applied to the jack protector, and there is no need to carefully adjust the direction of the jack protector as in the prior art. . For this reason, it is possible to easily lift the automobile.

  In addition, according to the present invention, since the jack-up bracket is made of a member to which two metal plates are fixed, it is not necessary to bend and mold one large metal plate at the time of manufacture. Thereby, the manufacturing process number of a jackup bracket can be reduced and the cost can be suppressed.

It is a perspective view which shows the rear part of a motor vehicle, Comprising: It is the figure used for description of the motor vehicle which concerns on the conventional motor vehicle and this invention. It is an AA line expanded sectional view of Drawing 1 showing the structure of the automobile concerning the present invention. It is a perspective view which shows the jackup bracket based on this invention fixed to the lower back panel and its rear surface. It is sectional drawing of the jack-up bracket and jack protector shown in FIG. It is explanatory drawing which shows a state when making the pushing-up part of a jack contact | abut to the jack protector shown in FIG. It is a perspective view which shows the two metal plates which comprise the jackup bracket which concerns on this invention. It is an AA line expanded sectional view of Drawing 1 showing the structure of the conventional automobile. It is an AA line expanded sectional view of Drawing 1 showing the structure of the conventional automobile. It is a perspective view which shows the jackup bracket and jack protector of the conventional motor vehicle. It is a perspective view which shows one big metal plate which comprises the jackup bracket of the conventional motor vehicle.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  The appearance of the automobile according to the present invention is not different from that shown in FIG. Therefore, in the description of the present embodiment, FIG. 1 will be referred to as necessary.

  FIG. 2 is a cross-sectional view showing the structure of the automobile according to the present invention, and is a view corresponding to the cross section taken along the line AA of FIG. As shown in FIG. 2, the automobile of this example also includes a floor panel 2 constituting the floor surface of the vehicle body 1, a lower back panel 3 fixed to the rear end of the floor panel 2 by spot welding, and the lower back panel. The lower back panel 3 constitutes a lower portion of the rear portion of the vehicle body. The lower back panel 3 and the floor panel 2 are both made of steel plates.

  The jack-up bracket 4 is configured by welding two metal plates, as will be described later, and has a hollow portion defined therein. As shown in FIG. 3, the flange portion 5 of the jack-up bracket 4 is fixed to the lower back panel 3 and the floor panel 2 by spot welding. As shown in FIG. 2, the upper opening of the luggage room R defined by the floor panel 2 and the lower back panel 3 is opened and closed by a luggage door 6 that is supported by the vehicle body 1 so as to be capable of rotating and opening. A reinforcing member 7 made of a sheet metal is fixed to the upper portion of the lower back panel 3, and a weather strip 8 is pressed against the reinforcing member 7 and a fitting flange portion of the upper portion of the lower back panel 3 with the luggage door 6 occupying the closed position. It is attached.

  As shown in FIG. 1, the rear bumper 9 disposed behind the vehicle body 1 includes a metal bumper reinforcement 10 extending in the vehicle width direction, and a resin bumper covering the bumper reinforcement 10. The bumper cover 11 is composed of a cover 11, and the bumper cover 11 is fixed to the lower back panel 3 by a clip (not shown), and the bumper reinforcement 10 is fixed to the lower back panel 3 by welding.

  The automobile of this example also has the jack protector 12 shown in FIGS. Unlike the conventional jack protector, the jack protector 12 is configured to be detachably fixed to the lower portion 13 of the jack-up bracket 4. That is, as shown in FIGS. 2 to 4, the jack protector 12 is made of an inverted cup-shaped member made of a high-strength material such as a steel plate, and the shaft portion 30 of the weld bolt 15 is formed on the upper wall 14. The head 16 of the weld bolt 15 penetrates and is fixed to the lower surface of the upper wall 14 of the jack protector 12 by welding. The shaft portion 30 of the weld bolt 15 in which the male screw is formed projects upward from the upper wall 14 of the jack protector 12.

  On the other hand, as shown in FIG. 4, a through-hole 17 is formed in the lower part 13 of the jack-up bracket 4 made of a metal plate such as a steel plate, and the upper surface of the lower part 13 is formed as shown in FIG. The weld nut 18 aligned with the through hole 17 is fixed by welding. By rotating the jack protector 12 around the central axis of the weld bolt 15, the weld bolt 15 fixed to the jack protector 12 is screwed to the weld nut 18 fixed to the lower portion 13 of the jack up bracket 4. The jack protector 12 can be fixedly connected to the lower portion 13 of the jack-up bracket 4. By rotating the jack protector 12 in the reverse direction, the weld bolt 15 can be removed from the weld nut 18 and the jack protector 12 can be detached from the lower portion 13 of the jack-up bracket 4.

  As described above, the automobile of this example has a fixing means for detachably fixing the jack protector 12 to the lower portion 13 of the jackup bracket 4 and is welded to the lower portion 13 of the jackup bracket 4 by welding. A weld bolt 15 fixed to the nut 18 and the jack protector 12 by welding and screwed to the weld nut 18 constitutes an example of the fixing means.

  Normally, the jack protector 12 is removed from the jack-up bracket 4 and stored in a tool box or the like. On the other hand, when the automobile is lifted by a jack in order to repair or inspect the automobile, the weld protector 12 fixed to the jack protector 12 can be attached to the jack up bracket by turning the jack protector 12 as described above. 4, the jack protector 12 is fixed to the lower portion 13 of the jackup bracket 4 as shown in FIG. In this state, the dish-like push-up part 20 of the jack 19 is brought below the jack protector 12. Next, the push-up portion 20 is raised, and the push-up portion 20 is applied to the jack protector 12 as shown in FIG. If the push-up unit 20 is continuously raised, the automobile can be lifted by the jack 19. The car protector 12 can be detached from the jack-up bracket 4 by lowering the automobile by the reverse operation and separating the push-up portion 20 from the jack protector 12 and then turning the jack protector 12 in the reverse direction.

  As described above, the jack protector 12 is interposed between the lower portion 13 of the jack-up bracket 4 and the push-up portion 20 of the jack 19 so that the push-up portion 20 is moved up and down. Even if not, the push-up portion 20 does not damage or deform the floor panel 2. Moreover, normally, since the jack protector 12 is removed from the jack-up bracket 4, the appearance of the automobile is not likely to be damaged.

  As described above, the automobile of this example also has the jack-up bracket 4 and the push-up portion 20 of the jack 19 to prevent the push-up portion 20 of the jack 19 from interfering with the floor panel 2 when the jack 19 moves up and down. The jack protector 12 is disposed between the two. At that time, since the jack protector 12 is fixed to the lower portion 13 of the jackup bracket 4 during use, it is not necessary to provide a concave groove in the upper wall 14 of the jack protector 12 to engage the lower portion 13 of the jackup bracket 4. Therefore, prior to bringing the jack protector 12 and the lower portion 13 of the jack-up bracket 4 into contact with each other, it is not necessary to adjust the orientation of the jack protector 12. It is only necessary to fix the jack protector 12 to the lower portion 13 of the jack-up bracket 4. In this way, the work for lifting or lowering the automobile can be simplified.

  Further, as shown in FIG. 6, the jack-up bracket 4 of this example is assembled by attaching two relatively small metal plates 21 and 22 obtained by press molding as shown in FIG. Manufactured by adhering. In FIG. 3, x marks indicate welding dents when the two metal plates 21 and 22 are spot welded and when the jack-up bracket 4 is spot welded to the lower back panel 3 and the floor panel 2. The manufactured jack-up bracket 4 has a hollow portion formed between the two metal plates 21 and 22, and the lower surface of the lower portion 13 comes into contact with the upper surface of the upper wall 14 of the jack protector 12 so as to be integrated. The rigidity can be improved as a whole.

  As described above, the jack-up bracket 4 of the present example is formed by a member in which the two metal plates 21 and 22 are fixed by welding so that a hollow portion is formed between the two metal plates 21 and 22. Since it is comprised, it is not necessary to bend and shape a large metal plate at the time of manufacture. For this reason, the manufacturing process number at the time of manufacture of the jackup bracket 4 can be reduced, and the manufacturing cost can be reduced.

  Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various modifications can be made.

DESCRIPTION OF SYMBOLS 1 Car body 2 Floor panel 3 Lower back panel 4 Jack up bracket 12 Jack protector 13 Lower part 15 Weld bolt 18 Weld nut 19 Jack 20 Push-up part 21,22 Metal plate

Claims (2)

A floor panel constituting the floor surface of the vehicle body, a lower back panel secured to the rear end of the floor panel and constituting a lower portion of the rear portion of the vehicle body, and a jack-up bracket secured to the rear surface of the lower back panel And a jack protector disposed between the jack-up bracket and the push-up portion of the jack so as to prevent the push-up portion of the jack from interfering with the floor panel when the car is lifted and lowered by the jack. In
The jack protector has a fixing means for detachably fixing the jack protector to a lower portion of the jack up bracket, and the jack up bracket is formed by attaching the two metal plates so that a hollow portion is formed between the two metal plates. An automobile comprising a member fixed by welding. The said fixing means consists of a weld nut fixed to the lower part of the jackup bracket by welding, and a weld bolt fixed to the jack protector by welding and screwed to the weld nut. Automobile.

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