JP5840571B2 - Vibration plate - Google Patents

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). This vibration plate is also used to compact the ground and make the ground uniform. Although the vibration plate is driven by the engine, the engine oil stored in the lower part of the crankcase of the engine deteriorates as the operating time elapses, and therefore needs to be replaced every time a predetermined operating time elapses. Generally, a drain hose is attached to the drain port, and the engine oil is discharged from the drain port via the drain hose when the oil is discharged.

JP 2003-129212 A

However, when the engine oil is discharged, if the amount of oil in the engine decreases, the amount of discharge decreases, making it difficult for the oil in the hose to be discharged. If a small amount of oil drips from the drain hose, it will cause oil scattering and subsequent cleaning will be required. Therefore, if the oil discharge amount is reduced to some extent, the drain hose can be lifted upward to prevent oil dripping, but then the oil in the hose may be discharged when the drain hose is fixed to the vibration plate, After all, the oil is scattered and cleaning is required.
On the other hand, there is a concern that oil leaks from the drain hose when the tip of the drain hose is loosened due to vibration of the vibration plate.

  The present invention is based on the above prior art, and can prevent oil from dripping from the hose when the drain hose is fixed after draining the oil, and if the drain hose is loosened due to vibration, the oil leaks. An object of the present invention is to provide a vibration plate that can prevent the above.

In order to achieve the above object, according to the present invention, an engine, an engine frame on which the engine is mounted, an exciter that is arranged below the engine frame and vibrates by the driving force of the engine, and the exciter A base plate that is arranged on the lower side of the body and vibrates by the vibrator and compacts the ground ; an oil pan that stores engine oil supplied to the engine and has an oil inlet ; and penetrates the oil pan Provided with a drain port for discharging the engine oil and a drain hose having one end connected to the drain port, the oil pan has an appropriate amount of oil to be stored. as an index, it has a high level line indicating the upper limit, the other end of the drain hose with up directly to the engine or the engine Is fixed to the member is, in a state of being the fixed, the drain hose is characterized by having an oil leakage preventing portion arranged at a position higher than any of the high level line and the oil inlet Provide a vibrating plate.

  According to the present invention, the oil discharge side end (tip) which is the other end of the drain hose is fixed to the engine or a member directly attached to the engine. Vibrates with the engine. For this reason, it can prevent that the fixation of the front-end | tip part of a drain hose loosens by the vibration of a vibration plate as much as possible, Therefore The oil leak from a drain hose can be suppressed. In addition, by fixing the drain hose tip in such a position, the drain hose can be handled as a part of the engine. For example, it is not necessary to remove the drain hose during engine maintenance. improves.

  Further, the drain hose has an oil leakage prevention portion arranged at a position higher than the drain port in a state where the tip end portion of the drain hose is fixed to the engine or a member directly attached to the engine. That is, at least a part of the drain hose passes through a position higher than the drain port. For this reason, when the drain hose tip is fixed after draining the oil, the oil leakage prevention part can prevent the oil remaining in the oil pan or drain hose from flowing to the tip and prevent the oil from scattering. it can.

  Also, by arranging the oil leak prevention part of the drain hose higher than the high level line, even if the drain hose is loosened, the oil will flow beyond the oil leak prevention part to the tip. Since it does not fall, it is possible to reliably prevent oil leakage. In particular, if the oil leakage prevention part is positioned higher than the oil inlet, the oil leakage prevention part will always be higher than the maximum oil level stored in the oil pan. Can be ensured.

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. It is the schematic which shows an example of the attachment part of a drain hose. It is the schematic which shows the other example of the attachment part of a drain hose.

The outline of the vibration plate according to the present invention will be described with reference to FIGS. 1 and 2.
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. That is, the base plate 2 is disposed below the vibration generator 5 and the ground is compacted by the vibration of the vibration generator 5.

  The vibrator main body 3 has an engine 9, and the engine 9 serves as a power source for driving the vibration generator 5. The engine 9 and the vibration generator 5 are connected via, for example, a V belt in a V belt cover 10 described later. Therefore, the vibrator 5 is vibrated by the driving force of the engine 9. The vibration of the vibrator 5 is transmitted to the base plate 2. The vibrator main body 3 further includes an engine frame 7 formed as an integral casting, and an engine 9 is mounted on the engine frame 7. The vibration body 5 described above is disposed below the engine frame 7. The base plate 2 and the engine frame 7 are connected via an anti-vibration rubber 20. A protective frame 8 is further attached to the engine frame 7. The protective frame 8 is arranged on both the left and right sides with respect to the engine frame 7. These frames 7 and 8 protect the engine 9 and its peripheral devices. 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 the engine 9, or a battery 6 disposed on the rear side of the engine 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 engine 9 is attached to the right side surface of the operation pole 4. A key switch 15 for starting the engine 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 engine 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 engine 9. Next, there is an oil injection port 35 disposed below the adjustment unit 34. The oil injection port 35 is for supplying engine oil. Next, there is a drain hose 36 disposed on the right side of the oil inlet 35. The drain hose 36 is for discharging engine oil.

  The oil injection port 35 described above is formed in the oil pan 21 in which engine oil supplied to the engine 9 is stored. A base end portion 36 a which is one end portion of the drain hose 36 described above is connected to a drain port 22 provided through the lower portion of the oil pan 21. Specifically, a joint 29 is attached to the drain port 22, and the tip of the joint 29 is fitted into the drain hose 36 and connected. The retaining band 28 is attached so as to press inward from the outside of the drain hose 36, so that the connection between the drain hose 36 and the joint 29 is not loosened.

  The distal end portion 36 b that is the other end portion of the drain hose 36 is fixed to the engine 9 or a member that is directly attached to the engine 9. As shown in FIG. 3, it is fixed to the V belt cover 10 in this embodiment. Specifically, a plate bracket 25 is attached to the V belt cover 10 via a bolt 23 and a nut 24, and a plug 26 is fixed to the plate bracket 25. A joint 27 is joined to the plug 26, and the tip of the joint 27 is fitted into the drain hose 36 and connected. A retaining band 28 similar to the drain port 22 side is attached from the outside of the drain hose 36 so as to press inward, so that the connection between the drain hose 36 and the joint 27 is not loosened. When changing the oil, the oil that has passed through the drain hose 36 from the drain port 22 is discharged from the tip 36b.

  Thus, by fixing the tip part 36b of the drain hose 36 to the V-belt cover 10, the fixed part of the tip part 36b vibrates with the engine. For this reason, it is possible to prevent the drain hose 36 from being loosened by the vibration of the vibration plate 1 as much as possible, and therefore, oil leakage from the drain hose 36 can be suppressed. Moreover, since the drain hose 36 can be handled as a part of the engine 9 by fixing the distal end portion 36b of the drain hose 36 in such a position, it is necessary to remove the drain hose 36, for example, during maintenance of the engine 9 Maintenance is improved. For example, if the tip 36b of the drain hose 36 is fixed to a protective frame 8 for protecting the engine 9, it is necessary to remove the protective frame 8 during maintenance. The trouble of releasing the fixation of the distal end portion 36b is generated. Other members that are directly attached to the engine 9 may include the engine frame 7 and include members attached to the engine 9 via attachment jigs (such as brackets).

  Further, the drain hose 36 has an oil leakage prevention portion 37 that is disposed at a position higher than the drain port 22 in a state where the distal end portion 36b is fixed to the V belt cover. That is, at least a part of the drain hose 36 passes through a position higher than the drain port 22. For this reason, the oil leakage prevention part 37 which is a part of the drain hose 36 is arranged above the drain port 22 when the tip part 36b of the drain hose 36 is fixed after the oil is discharged at the time of oil exchange. Therefore, the oil remaining in the oil pan 21 and the drain hose 36 can be prevented from flowing to the tip portion 36b, and the oil can be prevented from scattering from the tip portion 36b.

  The oil pan 21 is defined with a high level line 38 and a low level line 39 indicating an index of an appropriate amount of oil to be stored. These lines 38 and 39 are generally defined by a rod-shaped oil leveler 40 inserted from the oil inlet 35 of the oil pan 21. The oil leveler 40 is inserted into the oil pan 21 from the oil inlet 35 to check the oil level in the oil pan 21 according to the position of the oil adhering when the oil leveler 40 is taken out. It is. Generally, oil is stored in the oil pan 21 within a range between these lines 38 and 39. Therefore, if the oil leakage prevention part 37 described above is arranged at a position higher than the high level line 38, the oil does not flow beyond the oil leakage prevention part 37 to the tip part 36b. For this reason, when fixing of the front-end | tip part 36b of the drain hose 36 is loosened, reliable prevention of an oil leak is realizable.

  Considering this further, the oil in the oil pan 21 is not stored up to a position higher than the oil inlet 35. Therefore, by disposing the oil leakage prevention part 37 at a position higher than the oil injection port 35, the oil leakage prevention part 37 is always higher than the maximum oil level line 41 to be stored in the oil pan 21. Therefore, the effect of preventing oil leakage can be ensured.

  As shown in FIG. 4, the distal end portion 36 b of the drain hose 36 may be directed downward and fixed to the engine frame 8. That is, the plate bracket 43 is attached to the engine frame 8 via the bolts 42, and the plug 44 is fixed to the plate bracket 43. A joint 45 is attached to the plug 44, and the joint 45 is inserted into the drain hose 36 and fitted. The connection between the joint 45 and the drain hose 36 is firmly fixed by the retaining band 28. Even in such a structure, the oil leakage prevention portion 37 of the drain hose 36 passes through a position higher than the drain port 22, the high level line 38, or the oil inlet 35 (maximum level line 41). If it is, the effect similar to the above can be acquired.

DESCRIPTION OF SYMBOLS 1 Vibration plate 2 Base plate 3 Vibrator main body 4 Operation pole 5 Excitation body 6 Battery 7 Engine frame 8 Protection frame 9 Engine 10 V belt cover 11 Hanging ring 12 Anti-vibration rubber 13 Bolt 14 Acceleration lever 15 Key switch 16 Display 17 Lock Body 18 Handle 19 Tip body 20 Anti-vibration rubber 21 Oil pan 22 Drain port 23 Bolt 24 Nut 25 Plate bracket 26 Plug 27 Joint 28 Retaining band 29 Joint 31 Maintenance section 32 Precleaner 33 Fuel cock 34 Adjustment section 35 Oil inlet 36 Drain hose 37 Oil leak prevention part 38 High level line 39 Low level line 40 Oil leveler 41 Maximum level line 42 Bolt 43 Plate bracket 44 Plug 45 Joint

Claims (1)

Engine,
An engine frame on which the engine is mounted;
An exciter that is arranged below the engine frame and vibrates by the driving force of the engine;
A base plate that is arranged below the vibrator, and vibrates by the vibrator to compact the ground;
An oil pan for storing engine oil supplied to the engine and having an oil inlet ;
A drain port provided through the oil pan for discharging the engine oil;
In a vibration plate having a drain hose with one end connected to the drain port,
The oil pan has a high level line indicating its upper limit as an indicator of the appropriate amount of oil to be stored,
The other end of the drain hose is fixed to the engine or a member directly attached to the engine,
While being the fixed, the drain hose, the drain port, the high level line and the vibration plate, characterized in that it comprises an oil leakage preventing portion arranged at a position higher than any of the oil inlet.

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