JP5461453B2 - Stepped pavement attachment - Google Patents

Description

  The present invention relates to a step pavement attachment attached to a rolling roller of a rolling machine.

  An invention relating to a road surface groove forming apparatus is disclosed in Patent Document 1. This road surface groove forming device is provided in a rolling roller that also serves as a wheel of the rolling machine, and is used to form a plurality of grooves on the road surface when the rolling machine travels on the road surface. Such grooves give the vehicle vibration when the vehicle travels on the road surface on which these grooves are formed, so that the driver is careful to prevent excessive speed and doze driving. It is for arousing.

The road surface groove forming device includes a groove forming portion including a base extending along the peripheral surface of the rolling roller, and a protrusion disposed on the base and extending in the width direction of the rolling roller. The groove forming portion is attached to the rolling roller via attachment means.
Further, when a plurality of groove forming portions are attached to the rolling roller, these groove forming portions are arranged at predetermined intervals in the circumferential direction of the rolling roller and are individually attached via attachment means. It has been. In this case, the operator measures the interval between adjacent groove forming portions with a scale or the like and positions each groove forming portion.

JP 2007-169919 A

As described above, the road surface groove forming apparatus described in Patent Document 1 measures the space between the groove forming portions with a scale or the like when attaching a plurality of groove forming portions, and rolls the pressure through the attaching means for each groove forming portion. Must be attached to a roller. For this reason, it takes time and labor to attach the road surface groove forming device, and there is room for improvement in workability of the attaching operation.
The present invention takes the above-described conventional technology into consideration, and enables positioning between a plurality of groove forming portions without using a scale or the like, and improves workability for attaching the groove forming portions. An object is to provide an attachment for level pavement.

In order to achieve the above object, according to the first aspect of the present invention, there is provided a step paving attachment to be attached to a rolling compactor having a vehicle body and a rolling roller disposed on at least one of the front and rear sides of the vehicle body. A plurality of protrusions that are attached along the width direction of the rolling roller provided in the rolling machine and that are provided at intervals along the outer circumferential direction of the rolling roller and are to be pressed against the pavement surface. And a stepped pavement attachment comprising: a connecting portion that connects the adjacent ridges to each other on the side of the rolling roller.
According to a second aspect of the present invention, the protruding portion includes a base plate disposed on the outer surface of the rolling roller, and a protrusion fixed on the base plate, and both ends of the base plate are provided with the rolling pressure. It is characterized by being fixed to a roller.

In the invention of claim 3, when the plurality of protrusions and the connecting part form a protrusion unit, and the plurality of protrusions are attached to the rolling roller, the adjacent protrusions A connecting member for connecting the units is provided.
According to a fourth aspect of the present invention, the connecting portion is formed continuously and integrally with one end portion of the base plate.

The invention according to claim 5 is characterized in that a plurality of the ridge units and the connection members are provided so as to have the same length as the entire outer peripheral edge of the rolling roller.
The invention according to claim 6 is characterized in that the connecting member is formed integrally and continuously with the connecting portion.

  According to the first aspect of the present invention, the ridge portion to be pressed against the pavement surface is connected to the ridge portion adjacent to the side of the rolling roller at the connection portion. For this reason, it becomes unnecessary to attach each protrusion part to a compaction roller separately, and a plurality of protrusion parts can be attached by one operation. Therefore, the frequency | count of attaching a protrusion part can be reduced, the effort at the time of attachment of a protrusion part is reduced, and workability | operativity can be improved. In addition, since the interval between the adjacent protrusions can be set in advance by the length of the connection part by having the connection part, it is not necessary to attach the measurement while measuring the interval between the protrusions using a scale or the like. For this reason, the effort at the time of attachment is reduced, and workability | operativity can further be improved.

According to the second aspect of the present invention, the base plate can be securely fixed to the rolling roller, and a plurality of types of protrusions corresponding to the grooves formed on the pavement surface can be used while being exchanged.
According to the invention of claim 3, by further providing a plurality of ridge units formed with a plurality of ridges, it is possible to further reduce the number of times of attachment of the ridges to the rolling roller, and further troublesome attachment. It can be reduced and workability can be improved. In addition, since the interval between adjacent ridge units can be set in advance by the length of the connecting member, it is not necessary to attach the ridge unit while measuring the interval between the ridge units using a scale or the like. For this reason, the effort at the time of attachment is further reduced, and workability | operativity can be improved.

According to the invention of claim 4, since the connecting portion is formed integrally and continuously with one end portion of the base plate, the handleability is improved.
According to the invention of claim 5, since the plurality of protrusion units and connecting members are provided so as to have the same length as the entire outer peripheral edge of the rolling roller, the protrusion unit The connecting members are connected to each other and firmly fixed. Moreover, suitable level | step difference pavement can be performed according to the size of a rolling roller.

  According to the invention of claim 6, since the connecting member is integrally formed continuously with the connecting portion, the number of parts is reduced and the handleability is further improved.

It is a side view which shows the rolling machine provided with the attachment for level | step differences paving which concerns on this invention. It is an enlarged view of the attachment for level | step pavements which concerns on this invention. FIG. 3 is a sectional view taken along line III-III in FIG. 2. It is an enlarged view of the attachment for other level pavements which concerns on this invention.

Hereinafter, a rolling machine provided with a step pavement attachment according to the present invention will be described with reference to the drawings.
Referring to FIG. 1, a Macadam roller vehicle 1 as a rolling machine includes a front vehicle body 2 and a rear vehicle body 4. The front vehicle body 2 has a pair of front rolling rollers 6 that also serve as front wheels. On the other hand, the rear vehicle body 4 has one rear rolling roller 8 that also serves as a rear wheel. The front and rear rolling rollers 6 and 8 include an outer peripheral plate 6a formed in a hollow cylindrical shape, and side plates 6b that close both end openings of the outer peripheral plate 6a, and each side plate 6b has both end edges of the outer peripheral plate 6a. (See FIG. 3). A part of the outer peripheral plate 6a of the front and rear rolling rollers 6 and 8 is formed as an overhanging portion 6c on the outer side of each side plate 6b. These overhang portions 6c extend from the outer peripheral plate 6a toward the outer side in the vehicle width direction with the side plate 6b as a boundary. The front vehicle body 2 and the rear vehicle body 4 are connected to each other by a joint system via a steering link 10.

Driver seats 12 are provided on the left and right of the upper part of the front vehicle body 2, respectively. A plurality of steps 14 are provided on the side surface of the front vehicle body 2. For this reason, the worker can ascend to the driver's seat 12 using these steps 14.
A tank device 16 is disposed below the front vehicle body 2, and the tank device 16 includes a fuel tank and a hydraulic oil tank. Further, an engine (not shown) is disposed in the front portion of the front vehicle body 2. In the vicinity of the engine, a hydraulic pump (not shown) for supplying hydraulic oil to a traveling motor for the front rolling roller 6 and the rear rolling roller 8 is disposed. The hydraulic pump is driven by an engine and supplies hydraulic oil sucked up from a hydraulic oil tank to a traveling motor or the like.

A step pavement attachment 20 is attached to each of the pair of front rolling rollers 6 described above. Hereinafter, the step pavement attachment 20 will be described with reference to FIGS. 2 and 3.
The step pavement attachment 20 includes a plurality of protrusions 24 that are attached along the width direction of the rolling roller 6 and that are provided at a plurality of intervals along the outer circumferential direction of the rolling roller 6.

  The ridge portion 24 includes a base plate 26 disposed on the outer surface of the front rolling roller 6 and a protrusion 28 fixed on the base plate 26. The base plate 26 has a bent plate shape and extends in the width direction along the outer peripheral surface of the front rolling roller 6. Since the base plate 26 is in close contact with the outer circumferential surface of the front rolling roller 6, the lower surface of the base plate 26 has a curvature that is substantially equal to the outer circumferential surface of the front rolling roller 6. Also, one end of the base plate 26 is bent and extends along the side surface of the front rolling roller 6 to form a bent piece 29. Further, the other end of the base plate 26 is folded back to form a locking claw 27. The bent pieces 29 and the locking claws 27 that are both ends of the base plate 26 are fixed to the rolling roller 6 by bolts 34 and the like, respectively.

  Specifically, the base plate 26 is fixed using, for example, bolts 34 and nuts 36. The nut 36 is disposed on the outer surface of the bent piece 29 of the base plate 26 and the locking claw 27. The base plate 26 is fixed to the front pressure roller 6 by screwing the bolt 34 to the nut 36 and passing the bolt 34 through the bending piece 29 and the locking claw 27 and abutting against the front pressure roller 6. Is done. More specifically, as is apparent from FIG. 3, the tip of the bolt 34 that fixes the bending piece 29 is in contact with the side plate 6 b of the front rolling roller 6. The tip of the bolt 34 that fixes the locking claw 27 is in contact with the lower surface of the overhanging portion 6 c of the front rolling roller 6. Therefore, the base plate 26 is securely attached to the front rolling roller 6. For example, a bolt 38 with a swivel nut can be used as the bolt 34.

  On the other hand, the protrusion 28 is detachably fixed on the base plate 26 using screws or the like, and extends along the longitudinal direction of the base plate 26. In the illustrated example, the protrusion 28 extends from the bent piece 29 side to the central region of the base plate 26 and has a substantially semicircular cross section. The protrusions 28 may be welded to the base plate 26 or may be integrally formed. The protrusion 28 should be pressed against the pavement surface.

In this way, the base plate 26 can be securely fixed to the rolling roller 6 and can be used while exchanging a plurality of types of protrusions 28 corresponding to the grooves formed on the pavement surface, so that the handleability is improved.
As described above, a plurality of ridge portions 24 are provided, and the adjacent ridge portions 24 are connected to each other on the side of the rolling roller 6 at the connection portion 30. In the example shown in the figure, the connection portion 30 is integrally formed continuously with a bending piece 29 that is one end portion of the base plate 26. The interval between the adjacent ridge portions 24 is defined by the connection portion 30. This interval is, for example, 300 mm to 400 mm. The connecting portion 20 may be separated from the base plate 26, but it is preferable in terms of handleability to be integrated. In the case of separate bodies, for example, the protruding portions 24 and the connecting portions 30 are fastened through fastening means such as bolts.

  In this way, the ridge 24 to be pressed against the pavement surface is connected to the ridge 24 adjacent to the side of the rolling roller 6 by the connecting portion 30. For this reason, it is not necessary to attach the individual ridges 24 to the rolling roller 6 separately as in the prior art, and a plurality of ridges 24 can be attached by a single operation. Therefore, the frequency | count of attachment of the protrusion part 24 can be reduced, the effort at the time of attachment of the protrusion part 24 is reduced, and workability | operativity can be improved. Moreover, since the space | interval of the adjacent ridge part 24 can be preset with the length of the connection part 30 by having the connection part 30, it attaches, measuring the space | interval of the ridge parts 24 using a scale etc. It becomes unnecessary. For this reason, the effort at the time of attachment is reduced, and workability | operativity can further be improved.

The plurality of protrusions 24 (three protrusions 24 in the figure) and the connecting part 30 spanned between them form a protrusion unit 22. Plural ridge units 22 are attached to the rolling roller 6. When a plurality of ridge units 22 are attached to the rolling roller 6, the adjacent ridge units 22 are connected by a connecting member 40.
When attaching the ridge unit 22 to the front pressure roller 6, the locking claw 27 is locked to the overhanging portion 6 c of the front pressure roller 6. Next, the base plate 26 is brought into contact with the outer surface of the front rolling roller 6. At the same time, the bent piece 29 of the base plate 26 is arranged on the side plate 6 b side outside the front rolling roller 6. Thereafter, the both ends of the base plate 26 are fixed to the front rolling roller 6 via fixing means such as the bolts 34 described above. Thereby, the base plate 26, that is, the protrusion 24 is securely fixed to the front rolling roller 6.

  Then, the connecting member 40 is attached to the ridge unit 22. Specifically, one end of the connecting member 40 is attached to the bent pieces 29 at both ends in the circumferential direction with respect to the protrusion unit 22 attached to the rolling roller 6. This attachment is performed using, for example, a bolt 44 and a nut 46. Then, another ridge unit 22 is attached to the rolling roller 6 again, and the other end of the connecting member 40 is attached to the other ridge unit 22. Thereby, the connection member 40 is arrange | positioned between the adjacent ridge units 22, and connects these ridge units 22 mutually.

  In this way, by further providing a plurality of ridge units 22 formed with a plurality of ridge portions 24, the number of times of attachment of the ridge portions 24 to the rolling roller 6 can be further reduced, and the labor for further attachment is reduced. Thus, workability can be improved. Moreover, since the space | interval between adjacent ridge units 22 can also be preset with the length of the connection member 40, it becomes unnecessary to attach while measuring the space | interval between the ridge units 22 using a scale. For this reason, the effort at the time of attachment is further reduced, and workability | operativity can be improved.

  The ridge units 22 and the connecting members 40 are alternately arranged and attached so as to have the same length as the entire outer peripheral edge of the front rolling roller 6. That is, referring to FIG. 1, four protrusion units 22 and four connecting members 40 are alternately arranged on the outer peripheral edge of the front rolling roller 6. Accordingly, twelve protrusions 24 are attached to the front rolling roller 6. Thus, if the protrusion unit 22 and the connection member 40 are attached over the entire circumference, they are connected to each other and firmly fixed. Further, an appropriate level pavement can be performed according to the size of the rolling roller 6.

  Thus, when attaching the protrusion unit 22 and the connecting member 40, that is, the step pavement attachment 20 over the entire circumference of the front rolling roller 6, first, a part of the protrusion unit 22 and the connecting member 40 are paved. It is attached at the outer peripheral edge region of the front rolling roller 6 that is not in contact with the surface. Thereafter, the Macadam roller vehicle 1 is caused to travel and the front rolling roller 6 is rotated, and then the remaining protrusion unit 22 and the connecting member 40 are attached.

  After attaching the step pavement attachment 20 composed of the plurality of ridge units 22 and the connecting member 40 to the front rolling roller 6, the operator ascends to the driver's seat 12 using step 14. Stepped pavement work is performed by sitting on the driver's seat 12 and traveling on the Macadam roller vehicle 1. At this time, as the Macadam roller vehicle 1 travels, that is, according to the rotation of the front rolling roller 6, each ridge portion 24 of the ridge unit 22 is sequentially pressed against the pavement surface. Thereby, the level | step difference arrange | positioned at intervals in the pavement surface by the protrusion 28 of the protrusion part 24 is formed.

The description of one embodiment of the present invention is finished as above, but the present invention is not limited to the above embodiment, and various modifications can be made without departing from the embodiment of the present invention.
For example, as shown in FIG. 4, the connecting member 40 may be integrally formed continuously with the connecting portion 30 of the protrusion unit 22. In this case, since the connecting member 40 is formed continuously and integrally with the connecting portion 30, the number of parts is reduced, and the handleability is further improved. Moreover, since the above-mentioned through-hole is formed only in the front-end | tip part of the connection member 40, the effort of the attachment operation | work at the time of connecting adjacent protrusion unit 22 is reduced.

Moreover, the number of the protrusion parts 24 which the protrusion unit 22 has, and the number of the protrusion units 22 attached to the front rolling roller 6 can be set arbitrarily. Therefore, the step pavement attachment 20 can implement the step pavement according to the situation.
Further, the number of bolts 34 for fixing the ridge unit 22 to the front rolling roller 6 may be smaller than the number of ridge portions 24 included in the ridge unit 22. That is, in the case of the ridge unit 22 shown in FIG. 2, the fastening work is reduced by attaching only the bent pieces 29 of the ridge 24 located at both ends of the ridge unit 22 to the front rolling roller 6 via the bolts 34. Therefore, it is possible to further improve the mounting workability.

1 Macadam roller vehicle (rolling machine)
2 Front car body 4 Rear car body 6 Front rolling roller (front wheel)
6a Peripheral plate 6b Side plate 6c Overhang 8 Rear rolling roller (rear wheel)
10 Steering link 12 Driver's seat 14 Step 16 Tank device 20 Step pavement attachment 22 Projection unit 24 Projection section 26 Base plate 27 Locking claw 28 Projection 29 Bending piece 30 Connection section 34 Bolt 36 Nut 38 Swivel nut bolt 40 Connection Member 44 Bolt 46 Nut

Claims (6)

The car body,
In the step pavement attachment to be attached to a rolling machine provided with at least one of the front and rear of the vehicle body and a rolling roller that also serves as a wheel,
Mounted along the width direction of the rolling roller provided in the rolling machine, and provided with a plurality of intervals along the outer circumferential direction of the rolling roller, and a ridge to be pressed against the pavement surface;
A stepped pavement attachment comprising: a connecting portion that connects the adjacent ridge portions to each other at a side of the rolling roller.   The protrusion includes a base plate disposed on an outer surface of the rolling roller and a protrusion fixed on the base plate, and both ends of the base plate are fixed to the rolling roller. The attachment for level | step paving of Claim 1 to do. A ridge unit is formed by the plurality of ridge portions and the connection portion,
The step pavement attachment according to claim 2, further comprising a connecting member that connects adjacent ridge units when the plurality of ridge units are attached to the rolling roller.   The stepped pavement attachment according to claim 3, wherein the connection portion is formed continuously and integrally with one end portion of the base plate.   The step pavement attachment according to claim 3 or 4, wherein a plurality of the protrusion units and the connection members are provided so as to have the same length as the entire outer peripheral edge of the rolling roller.   The step pavement attachment according to any one of claims 3 to 5, wherein the connecting member is formed integrally and continuously with the connection portion.

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