JP2013194397A - Vibration plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration plate capable of preventing as much as a possible sediment and the like from reaching a prime mover even when a large heap formed by sediment, gravel, or the like exists in a travel direction.SOLUTION: A vibration plate includes: a base plate 2; a prime mover body 3 disposed on the upper side of the base plate 2 and including a prime mover 9; an exciting body disposed between the prime mover body 3 and the base plate 2, and transmitting a power of the prime mover 9 to the base plate; and an operation pole 4 extending from a rear part lower side of the prime mover body 3 and turning around a root part as a supporting point. The prime mover body 3 has a prime mover frame including a floor part 7a on which the prime mover 9 is mounted; the floor part 7a has an inclined part 20 inclined so that its front side in the travel direction is lowered forward; the inclined part 20 has a projection part 21 projecting forward over the vertical direction; and the projection part 21 has an inclined side surface part 23 formed in a portion where the prime mover 9 is mounted in the width direction of the floor part 7a and lowered in the width direction of the inclined part 20.

Description

  The present invention relates to a vibration plate.

  A vibration plate is used for compacting the ground (roadbed or roadbed) or the like (see, for example, Patent Document 1). The vibration plate is also used to compact the ground and make the ground uniform. Therefore, it proceeds as it is to places where the mountains are large and small, which are formed with earth and sand or gravel in the traveling direction.

Japanese Patent No. 3635389

  However, when the mountain is large, particularly when it is a large and soft mountain, earth and sand, gravel, etc. ride on the base plate serving as a rolling plate and accumulate there. If sedimentation of earth and sand proceeds as it is, there is a risk that these earth and sand and the like may come into contact with the prime mover on the upper side of the base plate, which may hinder driving.

  The present invention is based on the above-described prior art, and provides a vibration plate capable of preventing as much as possible the earth and sand from reaching the prime mover even when there is a large mountain formed of earth and sand or gravel in the traveling direction. The purpose is to do.

  In order to achieve the above object, in the present invention, a base plate for compacting the ground, a vibrator main body disposed on the upper side of the base plate and including a prime mover, and disposed between the vibrator main body and the base plate. An exciter that transmits the power of the prime mover to the base plate, and an operation pole that extends from a lower rear side of the vibrator main body and rotates around a base portion. The vibrator main body includes the prime mover The floor portion has an inclined portion that inclines so that the front side in the traveling direction is lowered toward the front, and the inclined portion projects forward in the up-down direction. The raised portion is formed in a portion where the prime mover is mounted in the width direction of the floor portion, and has an inclined side surface portion that is lowered in the width direction of the inclined portion. ing.

  Preferably, on the inner surfaces on both sides in the width direction of the inclined portion, a wall portion protruding forward in the vertical direction and an inclined wall portion that is continuous with the wall portion and is inclined toward the center in the width direction of the inclined portion. The guide part is formed with a gap from the raised part in the width direction of the inclined part.

  Preferably, the motor frame and the base plate are fixed to each other, and further includes a fastener penetrating the motor frame and having a head portion exposed to the inclined portion, and the head portion is located inside the guide portion. It is arranged.

  According to the present invention, an inclined portion is provided on the floor portion on which the prime mover is mounted, and a raised portion is further provided on the inclined portion, and the raised portion is formed at a portion where the prime mover is mounted in the width direction of the floor portion. . For this reason, it can suppress that earth and sand etc. climb in a raised part. Accordingly, it is possible to prevent earth and sand from coming into contact with the prime mover, and to reduce the adverse effect of the earth and sand on the prime mover.

  In addition, by providing an inclined side surface part that goes down in the width direction of the inclined part in the raised part, earth and sand that have climbed up to the middle of the raised part can be dropped along the inclined side part, Can be formed.

  In addition, guide portions are formed on the inner surfaces of both sides of the inclined portion in the width direction, and the guide portions are formed in the width direction of the inclined portion so as to be spaced from the raised portions, so that earth and sand climbing the inclined portion vibrate. Even if it tries to move to the side of the vibrator body as the plate travels, it will be blocked by the guide. Thereby, earth and sand etc. are prevented from falling on the uniform ground ground located on the side. In addition, since the guide portion is inclined toward the center side in the width direction of the inclined portion, the earth and sand moved to the side falls to the front center side of the vibrator main body along the guide portion. At the same time, the earth and sand climbing the slope can be easily compacted with the base plate.

  In addition, since the head portion of the fastener that fixes the prime mover frame and the base plate to each other is disposed inside the guide portion, earth and sand that soar during the compacting operation are blocked by the inclined wall portion. Therefore, it is possible to prevent the earth and sand from directly colliding with the head part, and to protect the head part and prevent the influence on the fixation between the motor frame and the base plate.

It is a schematic side view of the vibration plate which concerns on this invention. It is a schematic front view of the vibration plate which concerns on this invention. FIG. 3 is a schematic cross-sectional view showing only a prime mover frame extracted from AA in FIG. 2. It is a schematic sectional drawing which shows a motor | power_engine frame periphery seeing from BB of FIG.

The outline of the vibration plate according to the present invention will be described with reference to FIGS.
The vibration plate 1 includes a base plate 2 for compacting the ground, a vibrator main body 3 disposed on the base plate 2, and an operation pole 4 extending from the rear lower side of the vibrator main body 3. An exciter 5 is placed on the base plate 2, and the base plate 2 vibrates by driving the exciter 5. The vibrator main body 3 has a prime mover 9, and the prime mover 9 serves as a power source for driving the vibration generator 5. The prime mover 9 and the vibration generator 5 are connected via, for example, a V-belt cover 10 described later. Therefore, the power generated from the prime mover 9 is transmitted to the base plate 2 via the vibration generator 5. The lower surface and both side surfaces of the vibrator body 3 are constituted by a prime mover frame 7 formed as an integral casting. The prime mover 9 is mounted on the prime mover frame 7. The base plate 2 is connected to the prime mover frame 7 via a vibration isolating rubber 22. A protective frame 8 is further attached to the prime mover frame 7. The protection frame 8 is arranged on both the left and right sides with respect to the prime mover frame 7. The prime mover 9 and its peripheral devices are protected by the frames 7 and 8. The peripheral device to be protected is, for example, a V belt cover 10 that covers a V belt that is a drive transmission mechanism of a prime mover (engine) 9 or a battery 6 disposed on the rear side of the prime mover 9. On the upper side of the protective frame 8, a suspension ring 11 for hooking a hook or the like for lifting and transporting the vibration plate 1 is provided.

  The operation pole 4 is attached to the vibrator main body 3 so as to be rotatable about a pivot shaft (not shown) at the base portion thereof. The angle of the operation pole 4 with respect to the vibrator main body 3 can be adjusted by changing the insertion length of the bolt 13 inserted through the anti-vibration rubber 12. An accelerator lever 14 that can operate a wire for increasing the number of revolutions of the prime mover 9 is attached to the right side surface of the operation pole 4. A key switch 15 for starting the prime mover 9 is provided on the front surface of the operation pole 4, and this key switch 15 is attached to a display 16 for displaying various operating states of the vibration plate 1. In addition, when the operation pole 4 is rotated to stand in the vertical direction, the position of the operation pole 4 is held by the lock body 17.

  A handle 18 is provided at the tip of the operation pole 4. The handle 18 is operated by an operator in order to move the vibration plate 1 forward or backward, or to turn left and right. The vibration plate 1 of the present embodiment moves forward when the handle 18 is tilted forward and moves backward when the handle 18 is tilted backward. It is designed to be in the forward position when the operator releases his hand from the handle 18. A mechanism for transmitting the driving operation of the handle 18 to the vibration generator 5 is disposed at the tip of the operation pole 4, and this mechanism is included in the tip body 19.

  As shown in FIG. 2, a maintenance unit 31 for performing maintenance is arranged on the front surface of the vibrator main body 3. Examples of configuring the maintenance unit 31 are listed below. First, there is a pre-cleaner 32 disposed on the left side of the front surface of the vibrator body 3. The pre-cleaner 32 is attached to the air cleaner to remove relatively large dust. Next, there is a fuel cock 33 disposed at the upper front of the vibrator body 3. The fuel cock 33 is for supplying fuel to the prime mover 9. Next, there is an adjusting portion 34 disposed below the fuel cock 33. The adjusting unit 34 is for adjusting the rotational speed of the prime mover 9. Next, there is a fuel filler port 35 arranged below the adjustment unit 34. The oil supply port 35 is for supplying engine oil. Next, there is a drain hose 36 disposed on the right side of the fuel filler port 35. The drain hose 36 is for discharging engine oil.

  The vibrator main body 3 has a prime mover frame 7 at the bottom, and the prime mover frame 7 has a floor portion 7a as shown in FIG. A motor 9 is mounted on the floor 7 a, and the motor 9 is protected by a side plate of the motor frame 7 and a protective frame 8. Here, the front side of the floor portion 7a has an inclined portion 20 that is inclined so as to be lowered forward. A part of the inclined portion 20 in the left-right direction (the width direction of the floor portion 7 a) protrudes forward in the up-down direction to form a raised portion 21. The raised portion 21 is formed at a portion where the prime mover 9 is mounted in the width direction of the floor portion 7a. In the example shown in the figure, since the prime mover 9 is mounted substantially at the center in the width direction of the floor portion 7a, the raised portion 21 is also formed at the approximately center in the width direction of the floor portion 7a.

  The raised portion 21 has an inclined side surface portion 23 that descends in the width direction of the inclined portion 20. That is, the side surface of the raised portion 21 is formed as an inclined side surface portion 23. By providing such an inclined side surface portion 23, the earth and sand climbed up to the middle of the raised portion 21 can be dropped along the inclined side surface portion 23, and a falling route for the earth and sand can be formed (FIG. 2). Arrow C).

  As described above, the vibration plate is provided with the raised portion 21 that protrudes forward from other portions and rises in part in the width direction of the inclined portion 20 and the inclined side surface portion 23 that decreases in the width direction of the inclined portion 20. It is possible to prevent earth and sand from climbing when the vehicle is moving forward. Therefore, it is possible to prevent the earth and sand from coming into contact with the prime mover 9 and to reduce the adverse effect of the earth and sand on the prime mover 9.

  Further, guide portions 24 are formed on both sides of the inclined portion 20 in the width direction. The inner surface of the guide portion 24 (the surface facing the raised portion 21) has a wall portion 25 and an inclined wall portion 26. The wall portion 25 protrudes forward in the vertical direction of the inclined portion 20. That is, the wall portion 25 is erected from both sides of the inclined portion 20. The inclined wall portion 26 is continuous with the wall portion 25 and is inclined toward the center in the width direction of the inclined portion 20. The height of the inclined wall portion 26 gradually decreases toward the center, and eventually aligns with the lower edge of the inclined portion 20.

  Here, the guide portion 24 is formed with a gap from the raised portion 21 in the width direction of the inclined portion 20. A space between the guide portion 24 and the raised portion 21 serves as a dropping portion 27 for dropping earth and sand or the like about to climb the inclined portion 20 to the front of the vibration plate 1. That is, as described above, earth and sand or the like to climb up the raised portion 21 moves in the direction of the arrow C and falls as it is from the lower edge of the dropping portion 27 (arrow D in FIG. 2). Alternatively, even if the earth and sand moved in the direction of the arrow C move to the side of the inclined portion 20 as it is, they abut against the inner surface of the guide portion 24, and therefore move along the wall portion 25 and the inclined wall portion 26 (see FIG. 2). The arrow E) also falls in the direction of arrow D from the lower edge of the drop part 27. The earth and sand or the like trying to climb the inclined portion 20 in the part other than the raised portion 21 also moves from the arrow E along the arrow D and falls.

  As described above, by providing the guide portion 24 on the side of the inclined portion, even if earth and sand or the like to climb the inclined portion 20 try to move to the side of the vibrator main body 3 along with the traveling of the vibration plate 1, the guide portion 24. It will be blocked by. And since the inclined wall part 26 which inclines toward the width direction center side of the inclined part 20 is provided in the guide part 24, the earth and sand etc. which moved to the side of the inclined part 20 are the vibrator main body along the guide part 24. 3 falls to the front center side (from arrow E direction to arrow D direction). Therefore, for example, when the ground already leveled by the vibration plate 1 is on the side, it is possible to prevent the earth and sand from falling here.

  As described above, the base plate 2 and the vibrator main body 3 are connected via the anti-vibration rubber 22. Specifically, they are fixed to each other by bolts (fasteners) 28 that penetrate the floor portion 7 a (inclined portion 20) of the prime mover frame 7. In FIG. 4, the base plate 2 is shown in a simplified manner. Further, the bolt head 29 which is the head portion of the bolt 28 is exposed to the inclined portion 20, and this bolt head 29 is viewed from the inside of the guide portion 24 (inside the wall portion 25 and from the front side of the vibration plate 1). Are disposed on the upper side of the inclined wall portion 26. For this reason, since the bolt head 29 is hidden by the guide portion 24 when viewed from the outside, the bolt head 29 can be protected from a stepping stone or the like during the compacting operation. Accordingly, it is possible to prevent the stepping stones or the like from directly colliding with the bolt head 29, and to protect the bolt head 29 and to prevent the fixing of the prime mover frame 7 (vibrator main body 3) and the base plate 2 from being adversely affected.

DESCRIPTION OF SYMBOLS 1 Vibrating plate 2 Base plate 3 Vibrator main body 4 Operation pole 5 Exciting body 6 Battery 7 Motor frame 8 Protective frame 9 Motor 10 V belt cover 11 Hanging ring 12 Anti-vibration rubber 13 Bolt 14 Acceleration lever 15 Key switch 16 Indicator 17 Lock Body 18 Handle 19 Tip body 20 Inclined portion 21 Raised portion 22 Anti-vibration rubber 23 Inclined side surface portion 24 Guide portion 25 Wall portion 26 Inclined wall portion 27 Dropped portion 28 Bolt 29 Bolt head 31 Maintenance portion 32 Precleaner 33 Fuel cock 34 Adjustment portion 35 Refueling port 36 Drain hose

Claims (3)

A base plate for compacting the ground,
A vibrator main body including a prime mover disposed on an upper side of the base plate;
An exciter disposed between the vibrator main body and the base plate and transmitting the power of the prime mover to the base plate;
An operation pole that extends from the rear lower side of the vibrator main body and rotates with a root portion as a fulcrum,
The vibrator main body has a prime mover frame including a floor portion on which the prime mover is mounted,
The floor portion includes an inclined portion that is inclined so that the front side in the traveling direction is lowered toward the front,
The inclined portion has a raised portion protruding forward in the vertical direction,
The raised portion is formed in a portion where the prime mover is mounted in the width direction of the floor portion, and has an inclined side surface portion that is lowered toward the width direction of the inclined portion. plate. A guide having a wall portion projecting forward in the up-down direction and an inclined wall portion inclined continuously toward the center in the width direction of the inclined portion on the inner surfaces of both sides in the width direction of the inclined portion. Part is formed,
2. The vibration plate according to claim 1, wherein the guide portion is formed at a distance from the raised portion in the width direction of the inclined portion. The motor frame and the base plate are fixed to each other, further comprising a fastener that penetrates the motor frame and the head portion is exposed to the inclined portion,
The vibration plate according to claim 2, wherein the head portion is disposed inside the guide portion.

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