JPH0457839B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention is directed to a vertical hole drilling equipment in which one auger is composed of a plurality of split augers. The present invention relates to a holder for hanging a divided auger, which is used when the divided auger is suspended, carried to a predetermined position, and assembled into one auger, or disassembled.

B. Prior Art An auger 1 of a vertical hole drilling device is made up of a connected body of a plurality of split augers 2, 2, etc., as shown in FIG.
It has a hexagonal female hole 4 at the lower end. Then, fit the male shaft 3 of the lower divided auger 2 into the female hole 4 of the upper divided auger 2, and as shown in FIG. A concave groove 3 is coaxially formed on the 3 side and the female hole 4 side.
A and 4a are recessed, and a pin hole 5 is formed with both recessed grooves.
A pin 6 is inserted to connect the divided augers to each other. During this connection or disassembly, as shown in FIG.
The work is carried out by hanging a split auger,
Conventionally, a wire was wrapped directly around the split auger 2 and fixed, and the split auger was suspended by hooking the wire to the hook of the auxiliary rope 8, but in order to wrap the metal wire around the metal auger, a mechanical method was used. There is a risk that the tying force will be insufficient and the split auger will fall off, and the shaft center of the split auger will be suspended with an angle to the auxiliary cable 8, making it difficult to fit the male shaft 3 and the female cylinder 4 together. It is difficult to do this, especially when the split auger 2 has the auger spacing retaining ring 9 in multiple augers, and if the main body of the retaining ring 9 is tied with a wire and hung, the inclination of each male shaft will be reduced. unavoidable,
Since the weight of the main body of the holding ring portion is large, a large force is required to maintain the axis of the split auger 2 in the vertical direction, resulting in a disadvantage that the work of connecting the split augers to each other becomes difficult and inefficient.

C. Problems to be Solved by the Invention The present invention is intended to solve the above-mentioned problems. When assembling the divided augers into one auger, the male shaft of the divided augers can be easily and securely held, and the divided augers can be assembled into one auger. can be hung vertically,
To obtain a holder for hanging divided augers, which enables complete and easy connection work between divided augers.

D. Means for Solving the Problems The present invention provides a hanging cap-shaped body 1 mounted on a male shaft 3 of a split auger 2, as illustrated in FIGS. 1 to 4.
0, and a plate-shaped notch 14 is provided so as to be perpendicular to the axis of the cap-shaped body, facing each other from both left and right sides of the cap-shaped body, and in a state that can include the groove 3a of the male shaft 3. When each of the parallel rods 15 with one end pivotally connected is inserted into both notches 14 and the parallel rods are closed, the inner edge 15a of the parallel rods fits into the groove 3a and the parallel rods are opened in a figure eight shape. Parallel rod inner edge 15a is groove 3
This is a holder for suspending a split auger in which a parallel rod opening/closing means (18, 19, 20, 21, 24, etc.) is provided at the other end of the parallel rod so as to leave it outside.

E. Effect When using the holder, first the cap-shaped body 10
is mounted on the male shaft 3 of the split auger 2. In this case, the cut portion 14 is made to directly face the groove 3a. In this way, the opening/closing means is operated to close the parallel rod 15. Referring to FIGS. 5a and 5b, when the handle 24 is rotated upward and the parallel rod 15 is opened as shown in FIG.
a is out of the concave groove 3a, but when the handle 24 is gradually turned toward the forked part 21 as shown in Figure b, the parallel rods 15 come close to each other due to the action of the quadruple link, and the handle 24 becomes like a forked part. When positioned outside the portion 21, the inner edge 15a of the parallel rod 15 enters the groove 3a. When the handle 24 is screwed in this state, the base end surface of the handle retreats toward the link 19 and the forked portion 2
1, and the two are locked together by frictional force. Now, the inner edge 15a is locked to the groove 3a, so the auxiliary rope 8 of the leader mast 7 of the excavation equipment
suspend the holder and raise the split auger, connect it with the split auger in the lower position, operate the disassembly operation means in the opposite direction, open the parallel rod 15, and open the inner edge 15a.
from the groove 3a, and remove the holder from the male shaft 3. Repeat this operation to connect the split auger, and reverse the operation to disassemble it.

F. Example Example 1 of the present invention will be described in detail with reference to FIGS. 1 to 4. In the figure, 10 is a hanging ring part 11 on the top surface.
The hexagonal female hole 12 into which the hexagonal pillar male shaft 3 of the split auger 2 is fitted is provided on the inner surface. 13 is the cement milk cylinder opening 3 at the end of the male shaft 3
b is a circular recess into which it fits. 14 is a cap-shaped body 10
The male shaft 3 fitted into the female hole 12 is a notch that enters into the female hole 12 in a plate shape perpendicular to the shaft center from both left and right sides of the thick flange 10a formed in the opening of the
The grooves 3a are cut in parallel, and are opposed to each other across the axis. Reference numeral 16 denotes a parallel tongue piece that projects integrally from the cap-shaped body 10 with the notch part 14 inside, on a line that longitudinally traverses the remaining flesh between the notches 14, 14. The rear ends of the parallel rods 15, which are inserted one leg at a time into the notches 14, are pivoted by pins 17. The outside of the parallel rod 15 extends in an arc shape, and the inside edge 15a has the same shape as the half of the connecting pin 6 between the split augers. 21 is parallel rod 1
5, one end of a V-shaped link 18 is connected with a pin on both sides of the base of the fork, and the other end of the link 18 is directly connected to the operating lever 20. The upper end of a protrusion 22 extending from the other front end of the parallel rod 15 is pin-coupled 23 to the outer end of the link 19 near the operating lever 20 . The upper end of the protrusion 22 may slide within a certain range with respect to the link 19. 24 is a cylindrical nut-shaped handle screwed onto the operating lever 20 having a male thread. Links 18, 19, operating lever 20,
The forked portion 21, handle 24, etc. serve as means for opening and closing the parallel rod 15. When the parallel rod 15 is closed by the opening/closing means, the bolt 25 installed from the inside of the protruding part 22 toward the forked part 21 hits the forked part 21 to support the protruding part 22 and prevent it from breaking. prevent. A screw 27 that is screwed into an L-shaped piece 26 protruding from the side of the tongue piece 16 and protrudes toward the parallel rod 15 supports the parallel rod 15 so that it does not tilt. 28 is a safety pin that is provided on the upper surface of the thick-walled flange 10a and is inserted into the hole of the parallel rod 15 that is biased by a spring and closed together with the thick-walled flange 10a. The rod 15 is locked to prevent the inner edge 15a from coming out of the groove 3 of the split auger male shaft. This safety pin 28 can release the lock when the handle 28a is pulled against the spring.

Embodiment 2 will be described in detail using only the parallel rod 15 and the opening/closing means. As shown in FIG. 6, the rear ends of the parallel rods 15 are separately pin-coupled to the thick flange portions 10a, and the upper ends of the parallel rods 15 are symmetrically connected to connecting links 18, 19 of the same shape and length. are pin-coupled, link 18,
The other end of the operating lever 20 is connected to the tip of the operating lever 20 by a pin, and the middle of the operating lever 20 is connected to the thick-walled flange 10a.
It is supported by a pin 23a on the side. and,
When the operating lever 20 is lowered as shown by the solid line, the parallel rod 15 closes, and when raised as shown by the imaginary line, the parallel rod 15 opens. Other mechanisms are the same as in the first embodiment.

G. Effect The present invention provides that when the cap-shaped body 10 is fitted to the male shaft 3 of the split auger and the opening/closing means is operated to close the parallel rod 15, the inner edge 15a of the parallel rod 15 fits into the groove 3 of the male shaft. The holder can be set and hung on the split auger as easily and reliably as with a pin, and if the opening/closing means is operated again, the parallel rod 15 can be opened and the holder can be removed from the male shaft 3. can be removed, making auger connection and disassembly work safe and efficient.

[Brief explanation of the drawing]

FIG. 1 is a front view of Embodiment 1 of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a cross-sectional view taken along line B-B of the same.
FIG. 4 is a rear view of the same as above, FIGS.
Fig. 7 is a partially cutaway front view of the main part of the conventional example, Fig. 8 is an enlarged cross-sectional view of its connection part, and Fig. 9 is a plan view of the main part of the conventional example.
The figure is an overall side view of the vertical hole drilling equipment. In the diagram, 2... split auger, 3... male shaft, 4...
Female hole, 10... Cap-shaped body, 12... Hexagonal female hole,
14... Notch, 15... Parallel rod, 18... Link, 19... Link, 20... Operating lever, 21
...fork, 24...handle.

Claims (1)

[Claims] 1. Insert the male shaft at the end of one split auger into the female hole at the end of the other split auger, and align the male shaft surface and the female hole surface symmetrically with respect to the contact surface A between the male shaft and the female hole, respectively. In the split auger suspension holder used when assembling one auger by forming grooves 3a and 4a in the grooves and driving a pin into a pin hole formed between the grooves, the male shaft of the split auger is The grooves 3 are arranged so as to face each other from both left and right sides of the hanging cap-shaped body to be crowned.
When a plate-shaped notch is provided perpendicular to the axis of the cap-shaped body in a state including a, one end of the parallel rod with one end pivoted is inserted into both notches, and the parallel rod is closed. The inner edge of the parallel rod fits into the groove 3a, and when the parallel rod is opened in a figure eight shape, the inner edge of the parallel rod fits into the groove 3a.
A holder for hanging a split auger, characterized in that a parallel rod opening/closing means is provided at the other end of the parallel rod so as to allow it to move outward.