JPH08132962A - Mirror mounting mechanism for compaction machine - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a mirror mounting mechanism capable of preventing damage and breakage of a mirror or stay as a result of the stay moving following the obstacle even if the mirror hits the obstacle. . [Structure] A mirror 1, a stay 2 pivotally supported by a vehicle body B so as to be capable of swinging in the vertical direction, and a stopper 3 for receiving the stay when the stay swings downward. 2 has a mirror 1 at the front end thereof and a fitting portion 10 at the base thereof into which a support shaft 11 projecting from the vehicle body B penetrates, one arm of which is locked to the stay. The torsion coil spring is mounted near the base of the stay 2 while the other arm is locked to the vehicle body side.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to a mirror mounting mechanism for compaction machines. More specifically, it relates to a mechanism for attaching an external mirror such as a rearview mirror or a front mirror to a compacting machine such as a tire roller or a road roller.

[0002]

2. Description of the Related Art Many of the tire rollers, road rollers, etc. that have been conventionally used for leveling on asphalt roads and ground roads are used by the driver from the driver's seat to the outside of the vehicle, or Mirrors for monitoring curbs on both sides of the road are provided outside the vehicle body. Particularly, in the case of being used for leveling on a road or the like, a mirror stay is extended long sideways for the purpose of sufficiently monitoring the lower side surface of the vehicle body in order to bring the roller close to the curb. Further, since such a compacting machine is heavy and has high rigidity, it is absolutely necessary to avoid contact with other structures. Therefore, the stay of the mirror may be extended not only laterally but also upward or rearward.

However, when the stay of the mirror is extended to the outside of the vehicle body as described above, the mirror at the tip may be damaged by hitting another building or the stay itself may be bent or broken. It can happen. Actual Kaisho 51
Japanese Patent Laid-Open No. 36848/1996 also discloses a mirror mounting mechanism, but this cannot solve the above problem.

The present invention has been made to solve the above problems, and by constructing the stay so as to be swingable at the base portion for mounting the stay on the vehicle body, even if the mirror hits an obstacle, almost reaction force is generated. It is an object of the present invention to provide a mirror attachment mechanism that can prevent the stay and the stay without moving, and as a result, prevent damage and breakage of the mirror and stay.

[0005]

A mirror mounting mechanism of the present invention is a mirror mounting mechanism installed outside a vehicle body of a compacting machine, and includes a mirror and a stay having the mirror mounted on a tip thereof. The stay is composed of a pivot member for attaching the base of the stay to the vehicle body so that the stay can swing substantially vertically, and a stopper for receiving the stay when the stay swings downward. It is characterized by

The stopper is composed of a bracket attached to the vehicle body and a stay contact portion made of an elastic member attached to the bracket, which is a simple structure and does not give an impact to the stay or the mirror. Is preferable in that the above can be realized.

Further, a bent portion is formed on the stay, and a joint member rotatable about its own axis is interposed at an intermediate portion between the bent portion and the base portion. It is preferable because it can be located both on the inside of the vehicle and on the inside of the vehicle body.

Further, the pivot member is equipped with a spring member for urging the stay toward the contact position with respect to the stopper so that the mirror is not vibrated at a predetermined position (contact position with the stopper). ) Is preferable because it can be stably retained.

In this case, the spring member is composed of a torsion coil spring that is mounted with one arm of which is locked to the stay and the other arm of which is locked to the vehicle body. Is preferable because it is simple and easy to assemble.

[0010]

According to the mirror mounting mechanism of the present invention, for example, in the case of a mirror mounted on the rear part of the vehicle body such as a tire roller, if the stay is extended obliquely upward, which is the normal mirror mounting posture, the tire roller moves backward. Even if the mirror comes into contact with the obstacle during the operation, the reaction force at that time is about the weight of the mirror and the stay, so that the mirror and the stay are not damaged or broken. That is, the stay can move following the obstacle.

Further, if the mirror is fixed to a certain relative position with respect to the stay, even if the stay moves following the obstacle as described above, the position outside the vehicle which is desired to be monitored at that time as well. It is also possible to see Further, the mirror can return to its original predetermined position by its own weight only by moving the tire roller to the original position after the mirror comes into contact with the obstacle.

[0012]

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

FIG. 1 is a front view showing an example of a tire roller equipped with a mirror mounting mechanism according to an embodiment of the present invention, and FIG. 2 is an enlarged view of the mirror mounting mechanism in FIG.
3 is a plan view of a mirror mounting portion of the tire roller of FIG. 1, FIG. 4 (a) is a front sectional view showing another embodiment of the mirror mounting mechanism of the present invention, and FIG. 4 (b) is FIG. 4 (a). It is a DD line arrow view of.

Shown in FIG. 1 is a tire roller R, on the rear end of which a mirror 1 is attached. The mirror 1 is attached to the tip of a stay 2, and the stay 2 is pivotally supported on a vehicle body B so that the stay 2 can swing substantially up and down (in the direction of arrow A in FIGS. 1 and 2) around its base. Then, a stopper 3 for holding the posture of the stay 2 at a preset lowest position of the stay 2 is attached to the vehicle body B. Normally, this lowest position is set to be the position of the mirror 1 suitable for the driver.

As shown in FIG. 2, the stopper 3 is fixed to the vehicle body B by a bracket 4 made of a metal plate and bent in a dogleg shape, and is fixed to the bracket 4 via a spacer 5 by a fixing bolt 7. Rubber contact member 6
It consists of and. The contact member 6 has a tire-like shape in this embodiment, but the shape is not particularly limited. Also, without limiting the material to rubber,
For example, a soft synthetic resin may be used, or a housing made of metal or hard synthetic resin having a coil spring built therein may be used.

The means for attaching the base of the stay 2 to the vehicle body (corresponding to the pivotal support member in the claims) is such that the shaft portion on the vehicle body side is inserted into the cylindrical portion as shown in FIG. It is tightened with a nut through a washer. In addition, a known shaft rotation supporting method may be used.

A well-known joint 8 which allows the stay 2 to rotate about its own axis is attached to an intermediate portion of the stay 2 between the base portion and the mounting portion of the mirror 1. With this joint 8, the mirror side 2b of the stay can be rotated about 180 ° about its own axis with respect to the base side 2a of the stay, and the mirror side 2b of the stay can be bolted at any position between the 180 °. It can be fixed to the base side 2a by 9. Normally, this 180 ° rotation enables the mirror 1 to rotate upward (in the direction of arrow C in the drawing, the same in FIG. 3).

As a result, as shown in FIG. 3, the position of the mirror 1 can be freely changed between the outer side and the inner side of the vehicle body B. Specifically, a position where the mirror side 2b of the stay extends laterally outside substantially horizontally (indicated by a solid line in the drawing).
And a position that extends substantially horizontally inward (indicated by a chain double-dashed line in the figure) according to the application. Of course, it may be intermediate between these two positions.

By doing so, for example, when driving so that the tire does not hit the curb during road leveling, the outside of the tire can be easily confirmed by positioning the mirror 1 outside the side of the vehicle body B. On the other hand, when the mirror 1 is installed in a narrow place where it may interfere with an obstacle or the like, the mirror 1 may be positioned inside the rear side of the vehicle body B (two-dot chain line in the figure).

FIG. 4 shows attaching means for the stay 2. FIG. 4A is a front sectional view of the mounting means.
4B is a view of the same as seen from the vehicle body side, in other words, a cross-sectional view as seen in the direction of arrow D in FIG. 4A. However, FIG. 4 incorporates a biasing means for the stay 2 (so-called posture restoring means).

A cylindrical fitting portion 10 is formed at the base of the stay 2, and a support shaft 11 projecting from the vehicle body B penetrates into the fitting portion 10. A male screw is formed in the vicinity of the tip of the support shaft 11, and a plain washer 12 and a spring washer 13 are interposed and then tightened with nuts 14a and 14b. By doing so, the stay 2 can be swung in the vertical direction while receiving an appropriate resistance.

Reference numeral 15 is a torsion coil spring, and the cylindrical coil portion 15a thereof is externally fitted and inserted into the fitting portion 10 and the support shaft 11. The one arm portion 15b is locked to the locking portion 16 of the stay 2, and the other arm portion 15c is locked to the locking portion 17 of the vehicle body B. As a result, stay 2
Is urged downward (in the direction of arrow E in the figure) by the elastic force of the torsion coil spring 15 in addition to its own weight.

In the present invention, the torsion coil spring 15 is not an essential component, but the stay 2 is provided with the stopper 3 (FIG. 1, FIG. 1, by providing the torsion coil spring 15).
It is preferable because it is held without vibrating at a predetermined position in contact with 2). Further, when the stay 2 is forcibly oscillated upward (in the direction of arrow A in FIG. 4), if the torsion coil spring 15 is not attached, the stay 2
When is swung to the opposite side beyond the vertical direction, it will fall in the direction of its own weight and will not be able to naturally return to its original position. For this reason also, it is preferable to install the torsion coil spring 15.

The means for restoring the posture of the stay is not particularly limited to the torsion coil spring, and for example, a compression coil spring or a tension coil spring may be mounted in a state capable of exhibiting the posture restoring action.

Furthermore, a separate stopper may be provided at a position before the stay 2 swings in the opposite direction beyond the vertical direction.

In the above embodiments, all the mirrors installed at the rear end of the vehicle body are taken as an example, but it is obvious that the invention can be applied to the mirror installed at the front portion of the vehicle body if necessary.

[0027]

According to the present invention, even if a mirror comes into contact with an obstacle, the reaction force at that time is about the weight of the mirror and stay, so that the obstacle is lightly followed and the mirror and stay are damaged. Does not break or break. Further, after the mirror hits an obstacle, it is possible to return the mirror to its original predetermined position by its own weight simply by moving the compaction machine to its original position.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a tire roller equipped with a mirror mounting mechanism according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a mirror mounting mechanism in FIG.

FIG. 3 is a plan view of a mirror mounting portion of the tire roller of FIG.

FIG. 4A is a front sectional view showing another embodiment of the mirror attaching mechanism of the present invention, and FIG. 4B is a view taken along the line D-D of FIG. 4A.

[Explanation of symbols]

 1 ... Mirror 2 ... Stay 3 ... Stopper 6 ... Contact member 8 ... Joint 10 ... Fitting part 11 ... Spindle 15 Torsion coil spring B ... Vehicle body

Front page continued (72) Inventor Tsuyoshi Hirayama 2680 Oka, Inami-cho, Kako-gun, Hyogo Prefecture Kawasaki Heavy Industries Ltd. in Banshu Plant (72) Hiroshi Nishikawa 2680 Oka, Inami-cho, Kako-gun, Hyogo Prefecture Kawasaki Heavy Industries Ltd. in the factory

Claims (5)

[Claims] 1. A mirror mounting mechanism installed outside a vehicle body of a compacting machine, wherein the mirror, a stay having the mirror mounted on a tip thereof, and the stay swing substantially vertically. A mirror attachment mechanism for a compaction machine, which comprises a pivot member for freely attaching its base to a vehicle body and a stopper for receiving the stay when the stay swings downward. 2. The mirror attachment mechanism for a compaction machine according to claim 1, wherein the stopper comprises a bracket attached to the vehicle body and a stay contact portion made of an elastic member attached to the bracket. 3. The mirror mounting of a compacting machine according to claim 1, wherein the stay has a bent portion, and a joint member rotatable about its own axis is interposed in an intermediate portion between the bent portion and the base portion. mechanism. 4. The mirror mounting mechanism for a compaction machine according to claim 1, wherein the pivotally supporting member includes a spring member for urging the stay toward the contact position with the stopper. 5. The torsion spring formed by mounting the spring member in such a manner that one arm of the spring member is locked to the stay and the other arm is locked to the vehicle body. The mirror mounting mechanism of the compaction machine according to 4.