1. Field of the Invention
The invention relates to a moldboard positioning assembly, more particularly to a moldboard positioning assembly adapted for positioning at least two spaced-apart moldboards. The invention also relates to a method for positioning spaced-apart moldboards.
2. Description of the Related Art
Referring to
An object of the present invention is to provide a moldboard positioning assembly which can be conveniently used to position spaced-apart moldboards. Another object of the present invention is to provide a method for positioning at least two spaced-apart moldboards using the moldboard positioning assembly.
In the first aspect of the present invention, a moldboard positioning assembly, which is adapted for positioning at least two spaced-apart moldboards each having at least one through hole, includes a spacer block and two threaded connecting poles. The spacer block is adapted for passing through the through hole of one of the moldboards and is adapted to be disposed between and to abut against the moldboards. The threaded connecting poles respectively project from two opposite ends of the spacer block, and each of the threaded connecting poles is adapted to penetrate through the through hole of a corresponding one of the moldboards. The spacer block has a cross section larger than that of the threaded connecting poles.
In the second aspect of the present invention, a method for positioning at least two spaced-apart moldboards includes the steps of:
a) providing the moldboards with respective through holes that are aligned with each other;
b) providing a spacer block with two threaded connecting poles that respectively project from two opposite ends of the spacer block;
c) placing the spacer block between the moldboards by passing the spacer block through one of the through holes so that the moldboards are spaced apart by the spacer block;
d) extending the threaded connecting poles through the through holes, respectively; and
e) screwing two nut members respectively on the threaded connecting poles so as to urge the moldboards to abut against the spacer block.
Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments with reference to the accompanying drawings, of which:
Referring to
The moldboard positioning assembly 3 includes a spacer block 31, two threaded connecting poles 32, two nut members 35, two positioning rods 33, two washers 34, and two blocking rings 36.
The spacer block 31 is adapted for passing through the through hole 210 of one of the moldboards 21 and is adapted to be disposed between and to abut against the moldboards 21.
The threaded connecting poles 32 respectively project from two opposite ends of the spacer block 31, and each of the threaded connecting poles 32 is adapted to penetrate through the through hole 210 of a corresponding one of the moldboards 21. The spacer block 31 has a cross section larger than that of the threaded connecting poles 32. In the preferred embodiment, the threaded connecting poles 32 are connected to the opposite ends of the spacer block 31 by welding. Additionally, the threaded connecting poles 32 can be connected to the opposite ends of the spacer block 31 by other manners, such as by screwing.
Each of the threaded connecting poles 32 includes a threaded section 322 adapted for extending through the through hole 210 of the corresponding one of the moldboards 21, an insert section 321 extending between the threaded section 322 and the spacer block 31, and a polygonal turning end portion 323 protruding from the threaded section 322 and disposed opposite to the spacer block 31. In the preferred embodiment, the insert section 321 has a non-circular cross section (e.g., a semi-circular cross section), which is larger than a cross section of the threaded section 322. Moreover, the turning end portion 323 is tetragonal in the preferred embodiment.
The nut members 35 are respectively screwed on the threaded connecting poles 32 and are to be disposed outside the moldboards 21 for urging the moldboards 21 to abut against the spacer block 31.
Each of the positioning rods 33 is penetrated by the threaded section 322 of a corresponding one of the threaded connecting poles 32, is positioned opposite to the spacer block 31, and is adapted for abutting against a corresponding one of the moldboards 21. Each of the positioning rods 33 has at least one through hole 331 for extension of the corresponding one of the threaded connecting poles 32, and two positioning holes 332 angularly spaced apart from each other around the through hole 331.
Each of the washers 34 is mounted on the threaded section 322 of a corresponding one of the threaded connecting poles 32 between a corresponding one of the positioning rods 33 and a corresponding one of the nut members 35. Each of the washers 34 has two angularly spaced-apart positioning protrusions 342 respectively engaging the positioning holes 332.
Each of the blocking rings 36 is made of a plastic material in the preferred embodiment, is adapted to be fitted in the through hole 210 of a corresponding one of the moldboards 21, and has a slot 360 that permits one of the threaded connecting poles 32 to extend therethrough. The slot 360 of each of the blocking rings 36 is eccentric with respect to the center of the through hole 210 of the corresponding one of the moldboards 21. The insert section 321 of each of the threaded connecting poles 32 has a cross section corresponding to the shape of the slot 360 and extends through the slot 360 of a corresponding one of the blocking rings 36 so as to position the insert section 321 of each of the threaded connecting poles 32 in the slot 360 of the corresponding one of the blocking rings 36.
Referring to
A) providing the moldboards 21:
B) providing the spacer block 31 with two threaded connecting poles 32:
C) placing the spacer block 31 between the moldboards 21:
D) extending the threaded connecting poles 32:
E) blocking the through holes 210 of the moldboards 21:
F) mounting the positioning rods 33:
G) mounting the washers 34:
H) screwing the nut members 35:
Since the positioning protrusions 342 of each of the washers 34 respectively engage the positioning holes 332 of the corresponding one of the positioning rods 33, and since each of the washers 34 has a circular hole substantially equal to the cross section of each of the threaded connecting poles 32, the threaded connecting poles 32 will not oscillate while screwing the nut members 35 on the threaded connecting poles 32. Furthermore, since the slot 360 of each of the blocking rings 36 is eccentric with respect to the center of the corresponding one of the through holes 210 of the moldboards 21, the spacer block 31 will not oscillate or deviate while screwing the nut members 35 on the threaded connecting poles 32.
Since the moldboards 21 are abutted between the spacer block 31 and the positioning rods 33, the moldboards 21 can be positioned precisely during the cement grouting process.
Referring to
While the present invention has been described in connection with what are considered the most practical and preferred embodiments, it is understood that this invention is not limited to the disclosed embodiments but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
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95141498 A | Nov 2006 | TW | national |
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2000336657 | Dec 2000 | JP |
Number | Date | Country | |
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20080111052 A1 | May 2008 | US |