JP2909712B2 - Concrete block lifting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete block lifting device used when laying and laying concrete blocks in the shape of a square plate one after another.

[0002]

2. Description of the Related Art Various concrete block lifting devices have been proposed which hold concrete blocks, hold them, and hang them at predetermined locations where they are to be laid. In addition to holding or hanging the concrete block, both sides of the concrete block can be clamped, and at the same time, the fixing plate on the fixed side can be adjusted to the joint thickness and laid next to the existing concrete block with a predetermined joint interval. The present invention proposes a concrete block lifting device as described above.

[0003]

The gist of the present invention will be described with reference to the accompanying drawings.

[0004] Two main plates 2 arranged side by side with a gap 1 interposed therebetween
3, a pivot shaft 4 is erected on the upper right side, and the pivot shaft 4
A bending portion 5 ′ of the bending arm 5 is pivotally mounted, and a mounting hole 7 for a shackle 6 is provided at the upper end of the bending arm 5.
A slide shaft 8 is provided near the lower end of the slide shaft 8, and both front and rear ends of the slide shaft 8 are slidably provided in horizontal guide windows 9 provided on the main plates 2 and 3. Pivot the left end of 10 ・ 11 and slide plate 10
The right end of 11 is pivotally connected to the parallel slide shaft 12, and the parallel slide shaft 12 is slidably provided in the parallel horizontal guide window 13 provided on the main plates 2.3, and at the right end of the slide plates 10 and 11. A right holding plate 14 is provided to extend downward, and the right holding plate 14 is provided so as to be movable left and right. The right holding plate 14 is opposed to the right holding plate 14, and a left holding plate 15 is directed downward at the left end of the main plates 2 and 3. Different thickness
The present invention relates to a concrete block lifting tool characterized by being provided so as to be freely replaceable with a left holding plate 15 .

[0005] In the concrete block lifting device according to the first aspect, a window hole for gripping is provided on the left and right upper portions of the main plates 2 and 3.
16 is provided, but according to the concrete block lifting device according to claim 1 Symbol mounting, characterized in that a respective grip portion 17 on the gripping for window hole 16.

A lower end of a lock plate 18 is pivotally mounted on a lower portion of the main plates 2 and 3 slightly to the left, and the upper end of a slide square tube 19 fitted on the lock plate 18 is connected to the tip of the bent arm 5. 5 ", a piece 21 is installed in the piece receiving opening window 20 opened in the lock plate 18, and the shapes of the piece receiving opening window 20 and the piece 21 are locked when the bent arm 5 is lowered and the body a is locked. The concrete block lifting device according to any one of claims 1 and 2 , wherein the shape is selected so that the lock is released when the bending arm 5 is lifted and lowered again.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention, which is considered to be the best, will be described with reference to the drawings as an example of the embodiment, showing its operation and effect simply.

When the shackle 6 is lifted by placing the left holding plate 15 and the right holding plate 14 on the left and right sides of the concrete block b, the bent arm 5 is lifted and rotated, and the right holding plate 15 is moved rightward to move the concrete block b. Pinch.

When the bent arm 5 is pulled up via the shackle 6 in this sandwiched state, the heavier the concrete block b, the stronger it can be clamped and lowered to a predetermined laying position.

At this time, since the right holding plate 15 is set with a thickness corresponding to a predetermined joint interval, the right holding plate 14 is moved downward by pushing the tip 5 ″ of the bent arm 5 downward. In this state, when the right holding plate 14 is lifted and the left holding plate 15 is pulled out, the concrete block b is laid at a predetermined position with a predetermined joint interval.

At this time, if the left holding plate 15 is provided so that it can be freely attached and replaced, a plurality of left holding plates 15 having different thicknesses are prepared, and if the left holding plate 15 is adjusted to the joint interval, any joint can be used. It can be laid even at intervals.

Further, since a holding window 17 is formed by opening a holding window 16 at the upper left and right of the body a, a left holding plate serving as a joint ruler when the body a is pulled out from the concrete block b. When the 15 is pulled up so as not to open the joint space, the operation is easy if the left and right grip portions 17 are gripped, and it is also convenient when carrying the container a.

Further, since the lock mechanism c which combines the lock plate 18 and the slide square cylinder 19 with respect to the bending arm 5 is provided, the bending arm 5 does not rotate without permission, but rotates only when necessary and the concrete block. It is a practical and excellent concrete block lifting device that clamps b.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a preferred embodiment of the present invention, in which a pivot shaft 4 is mounted on the upper right side of two main plates 2.3 arranged side by side with a gap 1 therebetween. A bent portion 5 ′ of an L-shaped bent arm 5 is axially mounted on the mounting shaft 4, a mounting hole 7 for a shackle 6 is provided at an upper end of the bent arm 5, and a slide shaft 8 is provided near a lower lower end of the bent arm 5. The front and rear ends of the slide shaft 8 are slidably provided in horizontal guide windows 9 provided on the main plates 2 and 3. The left and right ends of the two slide plates 10 and 11 are pivotally mounted on the front and rear sides of the slide shaft 8. And the right ends of the slide plates 10 and 11 are pivotally connected to the parallel slide shaft 12, and this parallel slide shaft
12 is slidably provided in a parallel horizontal guide window 13 provided in the main plates 2 and 3, and a right holding plate 14 is provided downward at the right end of the sliding plates 10 and 11 so that the right holding plate 14 The concrete block lifting device is provided so as to be movable, and has a left holding plate 15 vertically fixed to a left end of the main plates 2 and 3 facing downward, facing the right holding plate 14, and fixed downward.

The left holding plate 15 has a tapered lower outer surface and an inclined surface 22.
When the container a is pulled out, the disadvantage that the concrete blocks b adjacent to each other can be pry open at the lower end of the left holding plate 15 when the body a is pulled out is corrected. The right holding plate 14 shows a case where an angle material is adopted.

Further, the left holding plate 15 is formed of a left holding plate having a different thickness.
15 can be replaced freely.

To replace the left holding plate 15, a nut 23 is attached to the inside of the left side of the body a, and a bolt hole 24 is provided to the outside of the left side.
Is provided, and a bolt 26 is screwed through a seat plate 25 to enable replacement.

Further, window holes for gripping are provided at upper left and right sides of the main plates 2 and 3.
16 are provided, and holding portions 17 are provided on the holding window holes 16 respectively. The gripping window hole 16 is selected to have a shape that is easy to grip.

A lower end of a lock plate 18 is pivotally attached to a lower portion of the main plates 2 and 3 slightly to the left, and the upper end of a slide square tube 19 fitted on the lock plate 18 is connected to the tip of the bent arm 5. 5 ", a piece 21 is installed in the piece receiving opening window 20 opened in the lock plate 18, and the shapes of the piece receiving opening window 20 and the piece 21 are locked when the bent arm 5 is lowered and the body a is locked. The shape is selected such that the lock is released when the bending arm 5 is lifted and lowered again.

As shown in FIG. 10, the shape of the piece 21 is such that a V-shaped recess 27 is provided in the opposite short piece of the square plate, and the shape of the window 20 for receiving the piece is also vertically elongated and extends on both sides of the bottom as shown in FIG. 28
29, there are inner projections 30 and 31 diagonally up and down, and the piece 21 turns to the vertical at the inner projection 30 as shown in FIG. 11b while rotating left, gradually climbs upward, and then descends. The piece 21 is locked by being inclined leftward at the same inner projecting portion 30, but in this state, the position of the piece 21 is at the center of the lower drawing (FIG. 11f), and the bending arm 5 does not rotate even if the shackle 6 is raised. When the bending arm 5 is pressed down in this state, the locked state is released, and the state returns to the state of FIG. 11A.

[0021]

Since the present invention is constructed as described above, concrete blocks can be laid with a proper joint space therebetween, and in the case of the second aspect, a desired joint can be provided by replacing the left holding plate. It is also easy to form an interval, and in the case of claim 3, the container can be lifted with both hands, so that the above operation can be easily performed. In the case of claim 4, the bent arm of the container has Since the right rotation plate is allowed to move only when necessary by the locking action of the lifting rotation, the concrete block lifting device is extremely practical.

[Brief description of the drawings]

FIG. 1 is a front view of a concrete block lifting device according to the first embodiment.

FIG. 2 is a plan view of the concrete block lifting device according to the first embodiment.

FIG. 3 is a front view of the concrete block lifting device according to the third and fourth aspects.

FIG. 4 is a front view during the block laying operation according to the third and fourth aspects.

FIG. 5 is a front sectional view of the concrete block lifting device according to the third and fourth aspects.

FIG. 6 is a sectional view taken along line AA in FIG. 3;

FIG. 7 is a sectional view taken along the line BB in FIG. 3;

FIG. 8 is a sectional view taken along the line CC in FIG. 3;

FIG. 9 is a sectional view taken along line DD in FIG. 3;

FIG. 10 is a sectional view of a slide square cylinder.

11 is an explanatory view of the movement of a piece showing a locked state, FIG.
b is a lock state diagram.

[Explanation of symbols]

 a Body b Concrete block 1 Gap 2, 3 Main plate 4 Pivot shaft 5 Bending arm 5 'Bending portion 5 "Tip 6 Shackle 7 Mounting hole 8 Slide shaft 9 Horizontal guide window 10, 11 Slide plate 12 Parallel slide shaft 13 Parallel Horizontal guide window 14 Right holding plate 15 Left holding plate 16 Window for gripping 17 Grip section 18 Lock plate 19 Sliding square tube 20 Frame receiving window 21 frames

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-41389 (JP, A) JP-A-57-7778 (JP, U) JP-A-6-3920 (JP, U) JP-A-60- 122785 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B66C 1/00-1/68

Claims (3)

(57) [Claims] 1. A pivot shaft is erected on the upper right side of two main plates arranged side by side with a gap therebetween, and a bent portion of an L-shaped bent arm is pivotally mounted on the pivot shaft. A mounting hole for a shackle is provided at the upper end of the arm, a slide shaft is provided near the lower end of the bent arm, and front and rear ends of the slide shaft are slidably provided in a horizontal guide window provided on the main plate. The left ends of the two slide plates are pivotally attached to both front and rear sides, the right ends of the slide plates are pivotally attached to the parallel slide shafts, and the parallel slide shafts are slidably provided in the parallel horizontal guide windows provided on the main plate. At the right end of the slide plate, a right holding plate is vertically provided downward so that the right holding plate can be moved left and right, and the right holding plate is opposed to the right holding plate, and the left holding plate is directed downward at the left end of the main plate. It is characterized as providing a <br/> be freely replaced in a different left clamping plate thicknesses Concrete block Tsuuegu. 2. The concrete block lifting device according to claim 1, wherein gripping window holes are provided on the left and right upper portions of the main plate, and grip portions are respectively provided on the gripping window holes. concrete block Tsuuegu of claim 1 Symbol placement. 3. A lower end of a lock plate is pivotally attached to a lower portion of the main plate slightly to the left, and an upper end of a slide square tube fitted on the lock plate is pivotally attached to a tip of a bent arm. A piece is installed in the piece receiving opening window opened in, and the shape of the piece receiving opening window and the piece is locked when the bent arm descends, the body rises,
The concrete block lifting device according to any one of claims 1 and 2 , wherein the shape is selected so that the lock is released when the bending arm is lowered again.