JP3777233B2 - Self-propelled vibration compaction device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a self-propelled vibration compaction device used for backfilling excavated ground, and more particularly to a self-propelled vibration compaction device capable of compacting cleanly and efficiently along the boundary of excavated ground. .
[0002]
[Prior art and problems to be solved by the invention]
Lines and pipes for electricity, gas, water, etc. are usually buried under the paved road, so when repairing them, the paved road must be dug up in a certain section. In such a construction site, first cut the pavement surface, excavate the soil in the construction section with a shovel car, repair the prescribed line or pipe, backfill the soil, compact the soil and then pave the construction work. Do. Both manual and self-propelled devices are widely used for compacting backfilled soil.
[0003]
Examples of manual compaction devices include JP-A-5-287706, JP-A-6-173215, JP-A-6-93011, JP-A-6-212605, JP-A-7-18652, JP-A-6-93039, JP-A-7-113209. Various types of structures have been proposed. Japanese Patent Laid-Open No. 4-312603 is known as a self-propelled compaction device. The self-propelled compacting device disclosed in Japanese Patent Laid-Open No. 4-312603 consists of a small caterpillar car that is operated by a handle like a lawn mower, and is a lower end of a rod fixed to an arm in front of the caterpillar car A vibration plate member is swingably attached to the plate. The vibration plate member has a general shape in which the front is curved in an arc shape like a sled plate or a ship bottom.
[0004]
However, it has been found that a vibration plate member having a general shape in which the front is curved in an arc shape like a sled plate or a ship bottom has various problems both in a manual type and a self-propelled type. For example, when the pavement surface is cut almost linearly with a cutter, such as construction work such as electricity, gas, water, etc., the backfilled soil must be compacted without gaps at the boundary of the excavation area. It is difficult to perform compaction of the soil efficiently without damaging the paved surface of the boundary with a self-propelled type. For this reason, compaction in the boundary region has to be performed slowly with a manual vibration compaction device, and there is a limit to the efficiency of work.
[0005]
Further, when compacting the ground of various sizes, it is desirable to use different sizes of vibration plate members. However, in conventional compaction devices, the vibration plate members are not detachable. For this reason, the efficiency is often poor for compacting a large area with a small vibrating plate member, or the boundary of the pavement surface is often damaged to compact the small area with a large vibrating plate member.
[0006]
Accordingly, an object of the present invention is to provide a self-propelled vibration compaction device capable of efficiently compacting even areas of various sizes.
[0007]
[Means for Solving the Problems]
As a result of diligent research in view of the above object, the present inventor has formed a vibration plate member in a box shape with an open rear end portion and is capable of swinging with respect to a vibration transmission shaft member. It was discovered that the boundary compaction can be performed cleanly and efficiently, and the present invention was conceived.
[0008]
That is, the self-propelled vibration compaction device of the present invention performs ground compaction by the vibration force of a flat plate member, and the plate member has a substantially flat bottom plate and side portions other than the rear end portion. A substantially vertical side surface member provided integrally with the base plate, a pair of protrusions are provided on the upper surface of the bottom plate, and a shaft member is attached to the opening of the protrusion, A cylindrical member is rotatably mounted around the shaft member between a pair of protrusions, and a vibration transmission shaft member is fixed to the cylindrical member, and the vibration transmission shaft member is a self-propelled vehicle. It is characterized by engaging with a vibration force applying device attached to the arm .
[0009]
[Operation and Examples]
FIG. 1 shows an example of the self-propelled vibration compaction device of the present invention, and FIGS. 2 and 3 show cross sections in the front-rear direction. FIG. 4 is a diagram showing the entire self-propelled vibration compaction device attached to the self-propelled vehicle.
[0010]
The vibration compaction device 1 of the present invention is attached to an arm portion 12 of a self-propelled vehicle 10 via a fixture 2. The self-propelled vibration compaction device 1 includes a flat plate member 4 that presses the ground while vibrating, a vibration transmission shaft member 7 that is swingably connected to the plate member 4, and a vibration transmission shaft member 7 that vibrates. And a vibration force applying device 8 that applies force and is attached to the fixture 2 of the arm portion 12.
[0011]
The plate member 4 has a substantially box-like shape comprising a substantially flat rectangular bottom plate 41 and substantially vertical side members 42a, 42b, 42c provided integrally on the side portions other than the rear end portion. Has a shape. Since the three sides of the bottom plate 41 are surrounded by the side members 42a, 42b and 42c, the plate member 4 has a great resistance to deformation during pressing. Further, soil and gravel enter the plate member 4 while the ground is compacted while vibrating, but a side member is not provided at the rear end of the bottom plate 41 in order to remove them easily. As shown in FIG. 3, when the plate member 4 is vibrated in a lifted state, the plate member 4 swings, so that the soil and gravel entering the plate member 4 are easily removed.
[0012]
A pair of protrusions 43 a and 43 b are fixed to the upper surface of the bottom plate 41. As shown in FIG. 1, the arrangement direction of the pair of protrusions 43 a and 43 b is preferably a direction orthogonal to the traveling direction D of the plate member 4, but may be the same direction as the traveling direction D. Openings 44a and 44b are provided at the center of the projections 43a and 43b, and the shaft member 5 is fitted into the openings 44a and 44b. A fastener 52 is fixed to one end of the shaft member 5, and a detachable fastener (not shown) is locked to the other end by a pin or the like, so that the shaft member 5 has a pair of protrusions 43a. , 43b will not fall out. In order to take out the shaft member 5 from the pair of protrusions 43a and 43b, a notch 45 is provided in at least one of the side members 42b and 42c.
[0013]
A cylindrical member 6 surrounding the shaft member 5 is provided between the pair of protrusions 43a and 43b, and the lower end of the vibration transmitting shaft member 7 is fixed to the center of the cylindrical member 6 by welding or the like. The cylindrical member 6 is rotatable with respect to the shaft member 5, and both constitute a rotating mechanism. Due to this rotation mechanism, the plate member 4 can swing with respect to the vibration transmitting shaft member 7.
[0014]
Since the upper end of the vibration transmitting shaft member 7 is engaged with the vibration force applying device 8, the shaft member 6 transmits vibration to the plate member 4. The vibration applying device 8 may be the same as a known device used in a hydraulic breaker or the like. Therefore, detailed description thereof is omitted here. The vibration applying device 8 is detachably fixed to the fixture 2 by a plurality of bolts 2a, and the fixture 2 is also detachably attached to the arm portion 12.
[0015]
The vibration transmission shaft member 7 is detachable from the vibration force applying device 8 by a known mechanism. Therefore, excavation areas of various sizes can be handled by exchanging the set of the plate member 4 and the vibration transmitting shaft member 7. The same thing can be done by removing the plate member 4 from the shaft member 5. In any case, since the plate member 4 is detachable, it is possible to cope with compaction regions of any size by preparing them in various sizes in advance.
[0016]
FIG. 5 shows an example of compaction work using the self-propelled vibration compaction device 1 of the present invention. This is an example in which a hole 50 drilled into an elongated rectangle is repaired after being refilled for repair work on lines and pipes such as electricity, gas, and water. In the central part of the hole 50 (the part far from the periphery of the hole), the plate member 4 is moved forward while being vibrated in the same manner as in the normal compacting work. Since the plate member 4 is provided at the tip of the arm portion 12 of the self-propelled vehicle 10, it can move forward at a constant speed. Therefore, not only can the compaction be performed without unevenness, but the work can be performed with extremely high efficiency. Further, since the side surfaces of the rectangular plate member 4 are provided with the vertical side members 42a, 42b, 42c, the plate member 4 has a gap along each of the straight sides 51, 52, 53, 54 of the hole 50. Can move without.
[0017]
For example, the region in the vicinity of the side 51 is compacted by moving the plate member 4 so that the side member 42c of the plate member 4 is along the side 51. When the plate member 4 reaches the apex X after the compaction of the region near the side 51 is finished, the plate member 4 is moved sideways. Similarly, the region near the side 52 is compacted by moving the plate member 4 to the vertex Y so that the side member 42a of the plate member 4 is along the side 52. In this way, it is possible to easily and efficiently perform the compaction of the regions in the vicinity of all sides 51, 52, 53, and 54. As described above, in a normal rectangular site, there is an advantage that the rectangular plate member 4 having the vertical side members can be compacted without a gap.
[0018]
The self-propelled vibration compaction device of the present invention has been described with reference to the illustrated embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made within the scope of the technical idea of the present invention. Can do. For example, the bottom plate 41 of the plate member 4 is not limited to a rectangular shape, but may be another shape such as a circle. Further, the pivot angle of the plate member 4 may be limited by providing an appropriate stopper on the shaft member 5. Further, instead of combining the shaft member 5 and the cylindrical member 6, a columnar member having the vibration transmitting shaft member 7 fixed between the pair of protrusions 43a and 43b is positioned, and stoppers are screwed to both ends thereof. Or you may pin.
[0019]
【The invention's effect】
As described above in detail, the self-propelled vibration compaction device of the present invention has a structure in which a plate member having a box shape with an open rear end portion is swingably attached to a vibration transmission shaft member. Therefore, clean compaction can be efficiently performed without any gaps in any excavation / backfill region. Since the self-propelled vibration compaction device of the present invention can be attached to a power shovel, a bulldozer or the like, there is an advantage that excavation, backfilling and compaction can be performed efficiently with a single device.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a main part of a self-propelled vibration compaction device of the present invention.
FIG. 2 is an enlarged cross-sectional view obtained along the line AA of FIG.
3 is a cross-sectional view showing a state in which the plate member of FIG. 2 is tilted rearward.
FIG. 4 is a schematic view showing the entire self-propelled vehicle equipped with the self-propelled vibration compaction device of the present invention.
FIG. 5 is a schematic view showing a mode of performing a compacting operation at a site of excavation / backfilling using the self-propelled vibration compaction device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Vibration compaction apparatus 2 ... Fixing tool 4 ... Plate member
41 ... Bottom plate
42 ・ ・ ・ Side member
43 ... Projection 5 ... Shaft member 6 ... Cylindrical member 7 ... Shaft member 8 for vibration transmission ... Vibration applying device
10 ... Self-propelled vehicle
12 ... Arm

Claims (5)

In a self-propelled vibration compaction device that compacts the ground by the vibration force of a flat plate member, the plate member is substantially provided integrally with a substantially flat bottom plate and side portions other than the rear end portion. And a pair of protrusions provided on the upper surface of the bottom plate, a shaft member is attached to the opening of the protrusion, and between the pair of protrusions A cylindrical member is rotatably mounted around the shaft member, and a vibration transmission shaft member is fixed to the cylindrical member, and the vibration transmission shaft member is a vibration force attached to an arm of a self-propelled vehicle. A self-propelled vibration compaction device characterized by being engaged with an applying device.  2. The self-propelled vibration compaction device according to claim 1, wherein the plate member has a rectangular shape.  3. The self-propelled vibration compaction device according to claim 1 or 2, wherein the plate member is swingable in the front-rear direction. The self-propelled vibration compaction device according to any one of claims 1 to 3 , wherein the vibration force applying device is a hydraulic hammer. The self-propelled vibration compaction device according to any one of claims 1 to 4 , wherein the plate member is detachable from the vibration transmission shaft member.

Images