JPH10166058A - Guard rail straightening device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guard rail straightening device capable of easily repairing deformed guard rails. SOLUTION: A guard rail straightening device 1 is provided with a male die 3 and a female die 4 comprising common parts. The dies comprise a die body members and die members for change which are fitted to an insertion rail groove formed in the mating surface in an attachable/detachable manner. Guard rails of diversified shapes can be repaired by press by changing the members for change. Because a mechanism 11 to apply a blow to the guard rail 2 in the pressed condition is provided on the side of the female die 4, correction which is insufficient with the press can surely be performed. In addition, the whole deflection and bending of the guard rails can be removed by deflection straightening mechanisms 12, 13 on each side. Thus, the guard rail can be straightened as a whole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guardrail correcting device for correcting a guardrail deformed or damaged by a collision of an automobile or the like, and a guardrail correcting tool used for the guardrail correcting device.

[0002]

2. Description of the Related Art When an automobile or the like collides with a guard rail and is deformed or damaged, the guard rail at the deformed or damaged portion is replaced with a new guard rail. The removed guardrail is disposed of as waste.

[0003]

However, immediately discarding a guardrail having a low degree of deformation or breakage is not preferable in terms of utilization efficiency. Therefore, it is convenient if there is a device that can easily correct a deformed guardrail. Therefore, it is conceivable to correct the deformed guardrail using a press machine. But,
Guard rails have different cross-sectional shapes depending on where they are used. It is not desirable in terms of cost to prepare male and female dies for presses that match a plurality of shapes. Also,
The work of changing the mold is also troublesome, and causes a reduction in work efficiency.

An object of the present invention is to propose a guardrail correcting device capable of efficiently performing guardrails of different shapes without using many types of press dies. Another object of the present invention is to propose a guardrail correcting tool composed of a combination of a male type and a female type suitable for use in the guardrail correcting device.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a guardrail correcting device for returning a deformed guardrail to its original shape by press-forming, which is adapted to the right and left surfaces of the guardrail. Male and female dies, male and female pedestals supporting the male and female dies so as to be relatively close to and separated from each other, and the male and female dies. Having a drive mechanism for relatively moving the support of the mold, at least one of the male and female molds, a mold body member,
A detachable engaging portion formed on a mating surface of the mold main body member with the other mold, and a replacement mold member having an engaging portion engageable with the detachable engaging portion, The replacement mold member is detachably attached to the mold body member to form a mold surface that matches the surface of the guardrail to be corrected.

As described above, in the guardrail correcting device of the present invention, a male member or a female member for press, in which a replacement mold member is detachably attached to a mold body member, is used. Therefore, if a large number of replacement mold members are prepared and only the replacement mold members are replaced according to the guard rail to be corrected, the guard rails of various shapes can be corrected. Since there is no need to replace the entire mold as in the case of using a conventional press machine, the working efficiency is good and the working cost can be reduced.

Here, a typical configuration for making the replacement mold member replaceable is that an insertion rail groove as the detachable engagement portion is formed on the mating surface of the mold body member, The insertion member is formed with an insertion rail that can be inserted into the insertion rail groove as the engagement portion.

Further, from the viewpoint of common use of parts, it is desirable that the male and female molds are used as common parts. In this case,
The male mold and the female mold have a common mold body member,
The male die includes a plurality of insertion rail grooves formed at a common position in the mold body member, and a plurality of types of replacement mold members having different shapes each having an insertion rail insertable into the rail groove. By selecting a replacement mold member to be inserted into each of the male and female mold body members, male and female mold surfaces corresponding to the left and right surfaces of the guardrail to be corrected may be formed.

On the other hand, the deformed guardrail may not be sufficiently corrected only by the pressing operation. In this case, if the guardrail is hit with a male type or a female type, the correction can be completed by the impact force at that time. Therefore, the guardrail correcting device of the present invention has, in addition to the above-described configuration, a striking force applying unit that applies a striking force to the one of the male and female molds a plurality of times at a constant cycle. Is desirable.

Further, since the guardrail is generally a long member, it may not be possible to correct the entire warp or bending even if only the male and female parts are corrected. In this case, the guard rail may be pressed by hydraulic pressure or the like in a direction in which the warp or the bending is corrected at both sides of the male mold and the female mold. Therefore,
In addition to the above configuration, the guardrail correcting device of the present invention further includes a guardrail for correcting warpage of the guardrail at one or both longitudinal positions of the guardrail pressed between the male and female dies. It is desirable to have a warp correcting mechanism for applying a pressing force for warp correction to the device.

The male and female dies used in the guardrail correcting device of the present invention can be modified as long as they can be attached as male and female dies of a general press machine. become.

[0012]

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

FIG. 1 is a schematic configuration diagram showing a main part of a guardrail correcting device to which the present invention is applied. As shown in this figure, the guardrail correcting device 1 is for returning the deformed guardrail 2 to the original shape by press molding, and the left and right surfaces 2a, 2b of the guardrail 2 are provided.
And a male mold 3 and a female mold 4 corresponding to. The male mold 3 is supported by a male support 5, and the female 4 is supported by a female support 6. The supports 5 and 6 are moved up and down by the hydraulic lifting mechanism 7 on the side of the male mold 3 so that the supports 5 are separated from each other and close to each other when the guardrail is pressed by both molds. Is relatively movable.

Here, FIG. 2 is a partial perspective view mainly showing the male mold 3 and the female mold 4 and FIG. 3 shows the female mold 4 taken out. As can be seen from these figures, the male mold 3 and the female mold 4 are composed of common parts. That is, the male mold 3 includes a plurality of (three) insertion rail grooves 82 formed on a mating surface 81 of the mold main body member 8 and the female die of the member, and the insertion rail grooves 82. 82, replacement mold members 9-1 and 9 detachably inserted into
-2. These replacement mold members 9-1 and 9
-2, an insertion rail 91 inserted into the insertion rail groove 82 is formed. Similarly, female mold 4
The mating surface 81 of the mold body member 8 and the male mold of this member
A plurality of (three) insertion rail grooves 82 formed in
Replacement mold members 9-2 and 9-3 are detachably inserted into the insertion rail grooves 82. A rail 91 inserted into the insertion rail groove 82 is formed on each of the replacement mold members 9-1 and 9-2. Replacement mold member 9
The surface shapes of -1 to 9-3 are different from each other,
By attaching these to the grooves of the male mold 3 and the female mold 4, the male mold 3 corresponding to the surface 2 a of the guardrail 2 to be corrected and the female mold 4 corresponding to the surface 2 b are configured.

In the configuration shown in the drawing, the insertion rail groove has a trapezoidal cross section with a widened bottom, and the rail side has a corresponding trapezoidal cross section. If this shape is adopted, the rail inserted from the side does not come off in the direction perpendicular to the surface. However, the present invention does not intend to exclude the adoption of a shape or structure other than the illustrated example as the attaching / detaching engaging portion and the engaging portion engageable with the engaging portion. .

In order to correct a guardrail having a different shape, for example, a replacement mold member 9-4 having a different shape (see FIG. 3) may be attached. As described above, by preparing a large number of types of exchangeable members, it is possible to correct guardrails having various shapes without replacing the male and female types as a whole.

Returning to FIG. 1 again, the guardrail correcting device 1 includes a support base 6 supporting the female mold 4.
Are supported by a hitting mechanism (hitting force applying means) 11. This striking mechanism 11 is of a hydraulic drive type,
The support 6 is vibrated up and down a plurality of times at a certain cycle with a certain stroke. Therefore, when the lower female mold is vibrated by the striking mechanism 11 in a state where the guardrail 2 is pressed by both dies, the guardrail 2 in the pressed state is vibrated.
Is repeatedly given a striking force. When such a striking force is applied, the guard rail portion, which cannot be sufficiently corrected by the press operation alone, is surely corrected.

As shown in FIG. 1, the guardrail correcting device 1 has a pair of warp correcting mechanisms 12 and 13 on both sides of the main body. In general, the guardrail is a long member, and when a part thereof is deformed or damaged, the guardrail is in a state of being entirely warped or bent. For this reason, male 3
Even when only the portion of the female mold 4 is corrected, it may not be possible to correct the entire warp or bending. In this case, the pair of warp correcting mechanisms 12 and 13 are driven to apply a hydraulic pressure downward, for example, to the guard rail 2 that is warped upward as shown in the drawing. In this way, the overall warpage or bending of the guardrail can be corrected.

A correcting mechanism for correcting warpage or bending may be arranged so as to be located below the guardrail. In this case, the guardrail may be attached to the device 1 while being warped downward. Of course, the correction mechanism may be arranged vertically so that hydraulic pressure can be applied from either side.

[0020]

As described above, according to the guardrail correcting apparatus of the present invention, it is possible to correct a guardrail having a different shape without replacing the male and female molds as a whole. It can be performed efficiently.

Further, since the male and female molds are formed of common parts, the number of parts of the apparatus can be reduced and workability is improved.

Further, when the guardrail is modified, the impact is applied together with the pressing operation, so that the guardrail can be surely modified.

Furthermore, since the entire warp or bending of the guardrail can be corrected, the guardrail can be entirely corrected unlike the correction performed partially using a press machine.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a guardrail correcting device to which the present invention is applied.

2 is a partial schematic perspective view of the apparatus of FIG.

FIG. 3 is an exploded perspective view showing the configuration of a female mold to which the present invention is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guard rail correction device 2 Guard rail 3 Male type 4 Female type 5 Male type support base 6 Female type support base 7 Elevating mechanism 8 Model body member 81 Mating surface 82 Insertion rail groove 9-1 to 9-4 Replacement mold member 91 Insert rail

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[Procedure amendment]

[Submission date] January 10, 1997

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

Claims (6)

[Claims] 1. A guardrail correcting device for returning a deformed guardrail to its original shape by press forming, wherein a male mold and a female mold corresponding to the left and right surfaces of the guardrail are brought close to each other. A male supporter and a female supporter that are movably supported to be in a state and a separated state, and a drive mechanism for relatively moving the male and female supporters, At least one of the male mold and the female mold has a mold body member, a detachable engaging portion formed on a mating surface of the mold body member with the other mold, and a detachable engaging portion. A replacement mold member formed with an engageable engaging portion,
A guardrail repair device, wherein the replacement mold member is detachably attached to the mold body member to form a mold surface that matches a surface of a guardrail to be repaired. 2. The insertion rail groove according to claim 1, wherein an insertion rail groove is formed on the mating surface of the mold main body member as the attachment / detachment engagement portion, and the insertion member is provided on the replacement member as the engagement portion. A guard rail correcting device, wherein an insertion rail that can be inserted into the guard rail is formed. 3. The male and female molds according to claim 2, wherein the male mold and the female mold have a common mold main body member, a plurality of insertion rail grooves formed at a common position in the mold main body member, and the rail groove. A plurality of types of replacement mold members having different shapes each having an insertable insert rail; and selecting a replacement mold member to be inserted into each of the male and female mold body members to be corrected. A guard surface correcting device capable of forming a male surface and a female surface corresponding to the left and right surfaces of the guardrail. 4. The striking force applying means according to claim 1, further comprising a striking force applied to one of the male and female pedestals a plurality of times at a constant cycle. A guardrail correcting device comprising: 5. The warp of the guardrail according to claim 1, further comprising a guardrail pressed between the male and female dies at one or both longitudinal positions. A guardrail correcting device, comprising: a warp correcting mechanism for applying a warp correcting pressing force to the guardrail for correcting. 6. A guardrail correcting tool comprising a combination of a male type and a female type according to claim 1.