JP6130338B2 - Cleaning device for removing foreign matter in grooves on pavement surface - Google Patents

Description

  The present invention repairs grooves (including cracks, joints, joints, etc.) caused by aging or other reasons on asphalt pavement surfaces or concrete pavement surfaces (roadways, sidewalks, runways, etc.) When performing (the work of filling the groove by filling the repair material), remove the foreign material (accumulated sand, gravel, soil, dust, etc. or native plants) in the groove in advance and clean the groove inner surface It is related with the apparatus for doing.

  When repairing a groove by filling a repair material in the groove on the pavement surface, it is necessary to remove foreign substances in the groove and perform a cleaning operation in advance. Such foreign matter removal cleaning work in the groove is often performed manually, but there is a problem that it is complicated, inefficient and takes time.

JP 2012-191856 A

  As a device for removing weeds from pavement surfaces such as roads and sidewalks, a metal wire brush is attached to the tip of an operation rod, and this brush is configured to rotate at high speed (see Patent Document 1) It is also possible to apply this joint mower to the removal of foreign matter in the groove before repairing the groove, but this joint mower has a horizontal brush that removes the grass. It is configured to rotate around (vertical axis), so weed stems and roots protruding from the outside of the groove can be removed, but the stem, root, sand, In addition to the problem that soil cannot be removed well, there is a problem that it is not suitable for long-time work because it is hand-held.

  The present invention is intended to solve the above-described problems in the prior art, and includes foreign matter (accumulated sand, gravel, earth, dust, etc., or self-generated in a groove of a pavement surface to be repaired). An object of the present invention is to provide an in-groove foreign matter removing and cleaning device that can efficiently and effectively remove plants.

  An in-groove foreign matter removing and cleaning device according to the present invention includes a chassis, a plurality of tires that support the chassis, a prime mover fixed on the chassis, an operation handle erected on the chassis, and a power transmission unit. The working rotary element is fixed to the head of the driven shaft that is supported at the tip of the power transmission unit, and this working rotary element is moved vertically by the rotational driving force supplied from the prime mover via the power transmission unit. The power transmission unit is configured to rotate and is supported so as to be rotatable around the central axis of the drive shaft of the prime mover, and is configured to be able to lower or raise the tip side. The rotation plane of the work is configured to be swingable in a direction in which the rotation plane is inclined in the left-right direction of the machine body.

  The power transmission part has a driving side part including a driving side pulley, a driven side part including a driven side pulley, and a belt spanned between them, and the driving side part and the driven side part can be expanded and contracted. And a means for urging the driven side portion in the direction of widening the distance between the driving pulley and the driven pulley is arranged so that an appropriate tension is always applied to the belt. Preferably it is.

  Further, it is preferable that a means for restricting the movable range of the swing of the working rotary element is disposed, and further, a means for preventing the driven side portion from dropping off is preferably disposed.

  The foreign matter removal cleaning device in the groove according to the present invention can efficiently remove foreign matter in the groove of the pavement surface to be repaired, and further, by adopting a swing mechanism of the working rotary element, Even if the groove on the pavement surface has a complicated shape, the rotating work rotating element can be suitably followed, and it seems to be behind the groove corner and the groove opening Even in such a portion, the outer peripheral tip of the working rotary element can be reached, and the cleaning of the groove and the like can be performed effectively.

  In addition, when the power transmission unit is configured by the driving side portion including the driving side pulley, the driven side portion including the driven pulley, and the belt spanned between them, the work can be performed by adopting the belt tension applying mechanism. An appropriate tension can always be applied to the belt while allowing the rotating element to rotate.

FIG. 1 is a side view of a groove foreign matter removing cleaning apparatus 1 according to the present invention. FIG. 2 is a front view of the in-groove foreign matter removing cleaning device 1 shown in FIG. FIG. 3 is a horizontal sectional view showing the internal structure of the power transmission unit 6 of the in-groove foreign substance removal cleaning device 1 shown in FIG. FIG. 4 is a plan view of the drive side cover 34 and the driven side cover 35 that are attached to the outside of the internal elements of the power transmission unit 6 shown in FIG. 3. FIG. 5 is a side view of the drive side cover 34 and the driven side cover 35 that are attached to the outside of the internal elements of the power transmission unit 6 shown in FIG. 3. FIG. 6 is an explanatory view of the rotation restricting means by the long hole plate 36 and the pin 37 shown in FIGS.

  The form for implementing the foreign material removal cleaning apparatus in a groove | channel which concerns on this invention is demonstrated along an accompanying drawing. FIG. 1 is a side view of a groove foreign matter removing and cleaning apparatus 1 according to the present invention, and FIG. 2 is a front view thereof. As shown in the drawing, the foreign matter removing and cleaning device 1 in the groove basically includes a chassis 2, three tires 3 (one front wheel 3 a, two rear wheels 3 b and 3 c) that support the chassis 2, and a chassis. A motor 4 (engine or electric motor) fixed on 2, an operation handle 5 erected on the chassis 2, and a power transmission unit 6.

  In the in-groove foreign matter removing cleaning device 1, the working rotary element 9 is fixed to the head of the driven shaft 25 supported at the tip of the power transmission unit 6, and the working rotary element 9 is moved from the prime mover 4 to the power transmission unit 6. It is configured to rotate in the vertical direction (rotate around the horizontal axis) by the rotational driving force supplied via the.

  In the present embodiment, a disk-shaped metal wire brush is attached to the head of the driven shaft 25 as the working rotary element 9. Instead of mounting the metal wire brush, a V-shaped cutter (a cutter capable of forming a cut having a V-shaped cross section) can be mounted.

  The power transmission unit 6 is supported so as to be rotatable within a predetermined angle range around the central axis C1 of the drive shaft (output shaft) of the prime mover 4 shown in FIG. 1, and is mounted on the lever 7 (operating handle 5). 1 is connected to the power transmission unit 6 via the link 8) from the position shown in FIG. 1 to the lower side (front side of the machine body), so that the front end side (driven shaft 25 side) of the power transmission unit 6 is operated. Can be lowered from the ground contact surface of the tire 3, and the lower end side of the working rotary element 9 attached to the head of the driven shaft 25 is preferably entered into the groove of the pavement surface to be worked. Can do.

  That is, when a wire brush is attached as the working rotary element 9, foreign matter can be effectively removed from the inside of the groove and the inner surface of the groove can be cleaned, and when a V-shaped cutter is attached, the pavement surface In this case, a cut having a V-shaped cross-section can be formed, or the edge of the groove and the inner wall surface can be cut to appropriately adjust the shape of the groove before repair.

  In the present embodiment, the working rotary element 9 mounted on the head of the driven shaft 25 basically rotates in the vertical direction around the horizontal axis, that is, a rotation plane (a plane orthogonal to the axis). ) Is held so as to be vertical, but the plane of rotation is configured to be slightly tiltable in the left-right direction of the machine (within the range of about 5 ° to the left and right in this embodiment) (for work) Rotating element rocking mechanism) Even if the groove of the target pavement surface has a complicated shape, the rotating working rotating element 9 (wire brush or the like) can be suitably followed. The outer peripheral tip of the working rotary element 9 can reach the corners of the corner and the part that is behind the opening of the groove, and the cleaning of the groove is effectively performed. Can do.

  In the present embodiment, as means for transmitting the rotational driving force supplied from the prime mover 4 to the working rotary element 9, a power transmission means comprising two pulleys and a belt spanning them is employed. However, this power transmission means is provided with a “belt tension adding mechanism”, which allows the working rotary element to swing and applies an appropriate tension to the belt at all times. It has become. Hereinafter, the structure of the power transmission unit 6, the swing mechanism of the working rotary element, and the belt tension applying mechanism will be described in detail.

  FIG. 3 is a horizontal sectional view showing the internal structure of the power transmission unit 6. The power transmission unit 6 basically includes a driving side unit 10, a driven side unit 20, a coil spring 31 (biasing means), a belt (not shown), and a cover mounted on the outside thereof (FIGS. 4 and 4). The driving side cover 34 and the driven side cover 35) shown in FIG. Further, the driving side portion 10 is constituted by a driving side base 11, a driving side bearing 12, a driving side pulley 13, and a driving side cylinder 14. The driven side portion 20 is constituted by a driven side base 21, a driven side bearing 22, and a driven side. A side pulley 23, a driven cylinder 24, and a driven shaft 25 are configured.

  As shown in FIG. 3, two drive side bearings 12, 12 are held on one side of the drive side base 11 at a predetermined interval, and between these two drive side bearings 12, 12, the drive side A pulley 13 is arranged. On the other side of the drive side base 11 (the side opposite to the drive side bearing 12), a drive side cylinder 14 whose tip protrudes toward the driven side portion 20 is fixed. In addition, two driven bearings 22 and 22 (outer peripheral side) are held at a predetermined interval on one side of the driven base 21, and a driven pulley is provided between the two driven bearings 22 and 22. 23 is arranged. On the other side of the driven side base 21 (the side opposite to the driven side bearing 22), a driven side cylinder 24 whose tip protrudes toward the driving side portion 10 is fixed.

  The inner circumferences of the drive side bearings 12 and 12 and the drive side pulley 13 are mounted on the outer circumference of the drive shaft 4a of the prime mover 4 supported in the horizontal direction as shown in the figure. On the other hand, a driven shaft 25 is mounted on the inner peripheral side of the driven bearings 22 and 22 and the driven pulley 23, and a working rotary element 9 (wire brush or the like) is fixed to the tip of the driven shaft 25.

  The driving cylinder 14 is inserted inside the driven cylinder 24 and has a small sliding resistance between the outer peripheral surface of the driving cylinder 14 on the inner side and the inner peripheral surface of the driven cylinder 24 on the outer side. A drive bush (not shown) is arranged, and the driven side cylinder 24 is slidable in the axial direction of the drive side cylinder 14 and is rotatable around the axis line of the drive side cylinder 14. A coil spring 31 is mounted on the outer peripheral side of the drive side cylinder 14 and the driven side cylinder 24. A belt (not shown) is stretched around the outside of the driving pulley 13 and the driven pulley 23.

  As described above, the driving side portion 10 and the driven side portion 20 are connected by inserting the driving side cylinder 14 inside the driven side cylinder 24, and the driven side cylinder 24 is connected to the driving side cylinder 14. Slidable in the axial direction. Accordingly, the driving side portion 10 and the driven side portion 20 can be expanded and contracted by moving the driven side cylinder 24 in the axial direction so that the distance between the driving side pulley 13 and the driven side pulley 23 can be changed. It has become.

  The coil spring 31 is sandwiched in a compressed state between the driving side base 11 and the driven side base 21 when the belt is attached to the driving side pulley 13 and the driven side pulley 23, so that a restoring force (repulsive force) is obtained. ), The driven side portion 20 (the driven side base 21 or the like) is biased in the direction in which the distance between the driving side pulley 13 and the driven side pulley 23 is increased. Therefore, the belt is stretched between the driving pulley 13 and the driven pulley 23 with an appropriate tension without slackening by the urging force of the coil spring 31 (belt tension applying mechanism).

  If the belt is cut for some reason, the driven cylinder 24 is disengaged from the position outside the driving cylinder 14 by the biasing force of the coil spring 31, and the driven side portion 20 is dropped ( There is a concern that the connection state with the driving side portion 10 will be released), but the foreign matter removing cleaning device 1 in the groove according to the present embodiment is provided with means for preventing the driven side portion 20 from falling off, Even when the belt is cut, the driven side portion 20 is configured not to drop off.

  As shown in FIG. 3, the drop-off prevention means includes a stopper bolt 32 partially inserted inside the driving side cylinder 14 and a small diameter formed on the tip side (driven base 21 side) of the driving side cylinder 14. It is comprised by the part 14a. The stopper bolt 32 has a tip fixed to the driven base 21, an intermediate portion inserted into the small diameter portion 14 a, and a bolt head portion positioned on the drive side base 11 side relative to the small diameter portion 14 a. . The bolt head portion has a diameter larger than the inner diameter of the small diameter portion 14a and cannot pass through the small diameter portion 14a.

  Further, the length dimension and the mounting position of the stopper bolt 32 are such that the belt is attached to the driving pulley 13 and the driven pulley 23 so that the belt tension applying function by the coil spring 31 is not impaired. It is adjusted so that a sufficiently large gap is formed between the bolt head portion and the small diameter portion 14a. A metal collar 33 (ring) is mounted around the neck of the bolt head portion of the stopper bolt 32 so as to avoid so-called “galling”.

  FIG. 4 is a plan view of the driving side cover 34 and the driven side cover 35 mounted on the outside of the internal mechanism of the power transmission unit 6, and FIG. 5 is a side view thereof. The drive side cover 34 is fixed to the drive side base 11 shown in FIG. 3, and the driven side cover 35 is fixed to the driven side base 21 shown in FIG. The driving side cover 34 and the driven side cover 35 not only cover and protect the internal mechanism of the power transmission unit 6 but also the movable range of the working rotary element 9 (the rotational range of the driven side unit 20 and the like). ).

  As described above, the drive-side cylinder 14 is inserted inside the driven-side cylinder 24, and the driven-side cylinder 24 is rotatable around the axis of the drive-side cylinder 14, so that the driven-side cylinder 24 includes the driven-side cylinder 24. The side portion 20, the driven side cover 35, and the work rotation element 9 are in a state in which the side portion 20, the work rotation element 9 and the drive side cylinder 14 can be integrally rotated (swinged). This mechanism is advantageous in that the working rotary element 9 can be suitably followed by the shape of the groove. However, the driving pulley 13 and the driven pulley 23 are effective. If the rotation of the driven side portion 20 or the like is allowed without limitation in a state where the belt is attached to the belt, the belt is twisted and comes into contact with an intermediate element (coil spring 31 or the like). Other work When rolling angle of the rotation plane of the element 9 is changed greatly, there is a problem that operability of the groove foreign matter removing cleaning device 1 is deteriorated. Therefore, in the present embodiment, a rotation restricting means for restricting the rotation angle of the driven side portion 20 and the like within a predetermined range is provided.

  This rotation restricting means is constituted by a long hole plate 36 fixed to the upper surface of the drive side cover 34 and a pin 37 fixed to the upper surface of the driven side cover 35. As shown in the drawing, the pin 37 is fixed to the upper surface of the driven cover 35 via a bracket, and the tip is inserted into the long hole 36 a of the long hole plate 36. ing.

  As shown in FIG. 6 (1), the pin 37 is inserted into the long hole 36 a of the long hole plate 36 fixed to the upper surface of the drive side cover 34, and the driven side cover 35 is in a vertical state. ) Until the pin 37 comes into contact with the left end of the long hole 36a or until it comes into contact with the right end of the long hole 36a as shown in FIG. 6 (3) (the center position shown in FIG. 6 (1)). The driven side cover 35 (and the driven side portion 20 shown in FIG. 3, the working rotary element 9, etc.) is center axis of the drive side cylinder 14 (see FIG. 3). Rotation around C2 is allowed, and further rotation is restricted.

  As described above, the foreign matter removing and cleaning apparatus 1 in the groove according to the present embodiment includes the swinging mechanism of the rotating element and the belt tension applying mechanism. A synergistic effect greater than the sum of the effects can be expected. More specifically, when two pulleys and a belt spanned between them are adopted as the power transmission means, the two pulleys are usually in an appropriate position (necessary for obtaining an appropriate belt tension). In the groove foreign matter removing and cleaning apparatus 1 according to the present embodiment, as described above, the working rotary element 9 preferably follows the shape of the groove to be worked, as described above. The working rotary element swing mechanism is employed so that the elements of the driven side portion 20 including the working rotary element 9 and the driven pulley 23 are connected to the central axis of the drive side cylinder 14. In the structure that can rotate around, if the distance between the two pulleys (the driving pulley 13 and the driven pulley 23) is fixed, the driven pulley 23 and the like are rotated by the tension of the belt. Suppressed and shaken The purpose of adopting the mechanism there is a possibility that can not be achieved. In the present embodiment, since a belt tension adding mechanism is employed in addition to the swing mechanism of the working rotary element, the belt is always provided with an appropriate tension while allowing the driven pulley 23 to rotate. Can be added.

  In the present embodiment, the drive side cylinder 14 is inserted inside the driven side cylinder 24, but the driven side cylinder 24 may be inserted inside the drive side cylinder 14. In addition, a coil spring 31 is used as a means for urging the driven side portion 20 in a direction that widens the distance between the driving side pulley 13 and the driven side pulley 23, but an appropriate urging force is applied to the driven side portion 20. Any device that can be used (for example, an air spring) may be used.

  Further, in the present embodiment, as means for preventing the driven side portion 20 from falling off, a stopper bolt 32 partially inserted inside the drive side cylinder 14 and a small diameter portion 14a formed on the tip side of the drive side cylinder 14 are used. As long as the expansion / contraction range of the drive side portion 10 and the driven side portion 20 (the movement range of the driven side portion 20 in the axial direction of the drive side cylinder 14) can be regulated, any means can be used. (For example, a means including a key groove and a key that fits and slides in the key groove) may be used.

  In the present embodiment, as a rotation restricting means for restricting the rotation angle of the driven side portion 20 or the like within a predetermined range, a long hole plate 36 fixed to the upper surface of the drive side cover 34 and the driven side cover 35. However, any means may be used as long as the rotation angle of the driven side portion 20 or the like can be regulated within a predetermined range.

1: Cleaning device for removing foreign matter in the groove,
2: Chassis,
3: Tire,
3a: front wheel,
3b, 3c: rear wheel,
4: prime mover,
4a: drive shaft,
5: Operation handle,
6: Power transmission part,
7: Lever,
8: Link,
9: Rotating element for work,
10: Drive side,
11: Drive side base,
12: Drive side bearing,
13: Drive pulley
14: Drive side cylinder,
14a: small diameter part,
20: driven side,
21: driven base,
22: driven bearing,
23: driven pulley,
24: driven cylinder,
25: driven shaft,
31: Coil spring,
32: Stopper bolt,
33: Color,
34: Drive side cover,
35: driven side cover,
36: long hole plate,
36a: long hole,
37: Pin,
C1: central axis of the drive shaft,
C2: Center axis of drive cylinder

Claims (6)

A chassis, a plurality of tires supporting the chassis, a prime mover fixed on the chassis, an operation handle erected on the chassis, and a power transmission unit;
The working rotary element is fixed to the head of the driven shaft supported at the tip of the power transmission unit, and the working rotary element is rotated in the vertical direction by the rotational driving force supplied from the prime mover via the power transmission unit. Configured as
The power transmission unit is supported so as to be rotatable around the central axis of the drive shaft of the prime mover, and is configured to be able to descend or raise the tip side,
A foreign matter removing and cleaning device in a groove, characterized in that the working rotary element can be swung in a direction in which a rotation plane of the working rotary element is inclined in the left-right direction of the machine body. The power transmission unit has a driving side part including a driving side pulley, a driven side part including a driven side pulley, and a belt spanned between them,
The driving side portion and the driven side portion are connected in a stretchable state, and means for urging the driven side portion in a direction that widens the distance between the driving side pulley and the driven side pulley is arranged on the belt at all times. The apparatus for removing foreign matter in grooves according to claim 1, wherein an appropriate tension is applied.   The apparatus for removing foreign matter in grooves according to claim 1 or 2, wherein means for restricting a movable range of swinging of the working rotary element is disposed.   The in-groove foreign matter removing and cleaning device according to any one of claims 1 to 3, wherein means for preventing the driven side portion from falling off is disposed.   The in-groove foreign matter removing and cleaning device according to claim 1, wherein the working rotary element is a wire brush.   The in-groove foreign matter removing and cleaning device according to claim 1, wherein the working rotary element is a V-shaped cutter.

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