JP2735745B2 - Clamping type block clamp - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method in which a block such as a side groove cover block (a so-called flat block) or an L-shaped side groove block (a so-called block having a rising wall) is provided on one side. The block is lifted slightly forward from the center of gravity of the block, and the block is
The present invention relates to a block clamp that can be transported reliably.

[0002]

Conventionally, this installed in the vicinity of the installation position
When transporting such a block to an installation position (location) or simply performing an operation such as installation at the installation position, no suitable holding tool was found.

[0003] For this reason, the work such as the transportation or installation is usually performed manually. In addition, partly openable
For suspending and transporting blocks via a pair of clamping arms
And a block transporter configured to hold and transport the block
Tools have been proposed.

[0004]

As described above, the manual transportation requires a great deal of labor and physical strength, resulting in a severe working environment, and there is a strong demand for improvement.
It is considered to be an issue that needs to be improved sooner than the health management of workers and the shortening of the construction period.

[0005] In the above-mentioned method using the clamp, the following problems are conceivable. Transport via a pair of clamping arms
Such a block transporting device lifts and transports the block in a horizontal state, so that when the horizontal state is constantly maintained, the block is relatively stable. However, because it is an outdoor work where the scaffold is bad and the wind is easily affected,
The horizontal state is not necessarily ensured, and there is a risk that the suspended block may fall. Hold it with your holding arms again
For transporting block transport equipment, use the adjacent installed block.
In this situation, the tip of the holding arm is inserted between the block and the block to be installed , and a gap larger than a specified size is formed between the blocks. Therefore, after temporarily installing the block to be installed at a location away from the already-installed block, manually lifting the block to be installed, and then moving to the installation position, an operation to secure the specified dimensions is required. . Therefore, the simplification of installation work, labor saving, speeding, and the like are still not sufficient.

[0006]

The gutter cover block is lifted with one touch and surely to form a substantially U-shaped clamping portion which can be installed at the installation location in this state. Various impacts are applied during the lifting transportation. also, it returns to and immediately normal lifting state without falling-slipping, also gutter
Pull out when installing the lid block,
The purpose is to make it easy and reliable to use.

[0007] The first aspect of the present invention relates to an upper and lower frame portion and the upper and lower frame portions.
From the rising frame connecting the base end and the free end of the upper frame
A pair of bent pieces that extend upward
The holding plate and the pair of holding plates are framed at appropriate intervals.
It is almost U-shaped when viewed from the side composed of the horizontal frame material
A clamp body having a bent piece for clamping the block, and a block
Located in front of the center of gravity of the
Said block locked at the tip of the bent piece portion of the tool body;
It is composed of a lifting strap that lifts the clamp body.
A block clamp , and upper and lower frames of the block clamp
In the part and the rising frame part, almost
Forming a character-shaped holding portion,
Create a draft space between the lock and the upper surface.
It is a characteristic structure.

[0008] Further, it can be reliably clamped an L-shaped gutter block, the pull-out at the time of installation of the L-shaped gutter block, excl.
To perform simple and reliable operations using the
Target.

A second aspect of the present invention relates to an upper frame portion and a suspension locking portion, and
The rising frame that connects the upper frame and the base end of the lifting latch, and the front
Bending extended upward from the free end of the upper frame
A pair of nips formed by a piece and a locking claw provided at the free end.
The holding plate, and the pair of holding plates are framed at appropriate intervals
It is almost L-shaped when viewed from the side composed of a horizontal frame material and
A clamp body having a bent piece for clamping the block, and a block
Located in front of the center of gravity of the
The block and is engaged with the tip of the bent piece of sushi body
It is composed of a lifting strap that lifts the clamp body.
A block clamp, and an upper frame portion of the block clamp
・ It is almost tilted for the block sandwiching at the lifting locking part and the rising frame part.
An L-shaped holding portion is formed, and the bent piece portion and the
Forming a draft space between the block and the upper surface
It is a structure characterized by the following.

[0010]

The operation (lifting, transportation and installation situation) of the present invention will be described below.

First, the gutter cover block shown in FIGS. 1 to 10 will be described. The upper and lower frame portions are fitted from one side of the gutter cover block placed on the girder-shaped pallet, and the upper and lower surfaces of the gutter cover block. The upper and lower frame portions are attached to each other, and one side surface of the so-called gutter cover block has a substantially U-shaped and bent piece portion.
Main body of the clamp for holding the block (approx.
And Writing挾in substantially C-shaped clamping portion) (see FIG. 4, FIG. 5). As described above, the gutter cover block is almost U-shaped.
After being clamped at the substantially U-shaped clamping portion of the clamping device body , a lifting string suspended from a heavy machine is stretched, and the gutter cover block is lifted. At this time, since the strap locking portion is designed to be located slightly forward (the direction opposite to the so-called sandwiching side; hereinafter the same) from the lifting center of gravity of the gutter cover block, The side gutter cover block is hung in a slightly inclined state (see FIG. 6). Accordingly, the side groove cover block is stably hung in a raised state, and specifically, the clamping side is downward and the free side (the direction opposite to the clamping side; hereinafter the same) is upward. The so-called gutter cover block is lifted with a restoring force applied thereto. Therefore, even if there is a shake, movement, vibration, or other complicated movement due to left and right, up and down movement or twisting of the lifting string, as described above, the substantially U-shaped clamp body is substantially closed.
Because of the character shape and the resilience, the normal suspension state is immediately and reliably returned. Of course, there is no drop or slip (the same applies hereinafter).

Thus, the substantially U-shaped clamping device of the present invention is provided.
Hanging work of gutter lid block that uses the body, or transportation work is a very safe, using the heavy equipment that is parked in bad field of scaffolding, lifting work of the gutter lid block, or transportation work, etc. Does not cause any problems. Through the lifting state and the carrying operation, the gutter cover block is moved above the constructed gutter U-shaped block, and is usually manually operated by a worker waiting at the position. Fitting between the open side of the block and the wall surface of the side groove U-shaped block and guiding it to a predetermined position, the lifting string is relaxed, and the substantially U-shaped by utilizing the draft space for drafting.
By pulling out the clamp body , the side groove cover block is installed (see FIGS. 7 to 9). In this manner, when the gutter cover block is installed on the gutter U-shaped block, the substantially U-shaped clamp body is pulled out, thereby completing a series of installation work of the gutter cover block (FIG. 10). reference). Thereafter, the user engages in a series of installation work of the next gutter cover block (not shown) through the same operation and procedure as described above.

Next, the L-shaped side groove block shown in FIGS. 11 to 20 will be described. The upper frame portion and the lifting engagement portion from one side of the L-shaped side groove block placed on the girder pallet. , And firstly, a locking claw of an upper frame portion is engaged with an inner surface of a rising wall (hereinafter, simply referred to as a rising wall) of the L-shaped side groove block. A lifting locking portion is engaged with the lower surface of the side groove block, the upper frame portion is attached to the upper surface of the L-shaped groove block, and the locking claw and the suspension are fixed to the inner surface of the rising wall and the lower surface of the L-shaped groove block. Locking of upper locking part, so-called almost
Clamp for block clamping with inverted L-shape and bent piece
Of the fixture body (substantially L-shaped clamp body)
The L-shaped holding portion is used to hold the lock (see FIGS. 14 and 15). As described above, the L-shaped side groove block is almost tilted L
After being clamped by the almost inverted L-shaped clamping part of the
When the lifting string hung from the heavy equipment is stretched and the L-shaped side groove block is lifted, the locking part of the lifting string is
In since that is designed to be positioned slightly forward side of the center-of-gravity position lifting L-shaped gutter block, together with the L-shaped groove block is lifted in a slightly inclined state, the locking claw and the lifting engagement portion Then, the inner wall of the rising wall and the holding side of the lower surface are clamped so as to be narrowed (see FIG. 16). Therefore, the L-shaped side groove block is stably lifted in a state where a so-called restoring force is applied, that is, the holding side is slightly lower and the free side is higher, and the above-described narrowing (not necessarily required, It is desirable to immediately and surely return to a normal lifting state even if there is a shake, movement, vibration, or other complicated movement due to left and right movement, up and down movement or torsion, etc. of the lifting string. . The same effect as the above example can be expected. Thus, almost of the present invention
The work of suspending or transporting the L-shaped gutter block using the inverted L-shaped clamping body is very safe. For example,
Using heavy equipment stopped at a site with poor scaffolding,
No problem occurs even when the lifting work or the carrying work of the mold side groove block is performed.

Through the above-mentioned lifting state and the carrying operation, the L-shaped side groove block is moved to the side end of the L-side side groove block which has already been constructed, and is usually manually operated by a worker who stands by at the position.
For example, a small gap (about 8 mm) is left between the constructed L-shaped side groove block and the L-shaped side groove block, and the L-shaped side groove block is guided to a predetermined position and installed in a continuous manner. When the L-shaped side groove block is thus installed, the lifting string is relaxed, and the L-shaped side groove block is placed at the predetermined position where the mortar is laid (see FIGS. 17 to 19). As described above, when the L-shaped groove block is installed on the mortar at a predetermined position, the clamping side of the L-shaped groove block is slightly lifted, and the curved surface of the locking claw and the lifting lock are set.
The series of installation work of the L-shaped side groove block is completed by pulling out the substantially inverted L-shaped holding body using the curved surface of the part (see FIG. 20). Thereafter, through the same operation and procedure as described above, the next L-shaped side groove ( not shown)
Engaged in a series of block installation work. The gap of about 8 mm is filled with joint mortar. Also this example
With the L-shaped side groove block clamping device, the locking claw and the lifting
This is a configuration in which a curved surface is provided in the locking portion. Therefore, the L-shaped side groove cover
Easier block installation and helps secure installation operation
There are features.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

First, the substantially U-shaped clamp body 1 of the side groove cover block A shown in FIGS. 1 to 10 will be described. The substantially U-shaped clamp body 1 is located on the clamping side A1 of the side groove cover block A. From the side view sandwiching the upper and lower surfaces A11 and A21
Substantially U-shaped clamping plates 2 and 3 and these two U-shaped
A large number of horizontal frame members 4 that frame the holding plate bodies 2, 3 ...
(Hereinafter simply referred to as 4) (the structure is not limited to this framework, and any structure may be used as long as it is a substantially U-shaped clamp body in side view). . In addition, the substantially C
The U-shaped clamping plate 2 (the substantially U-shaped clamping plate 3 also has the same configuration, and in principle, only one side will be described below) is formed of a single steel plate and has a bent piece. An upper frame portion 21 having the portion 2a, a lower frame portion 22 facing the upper frame portion 21, and a rising frame portion 23 connecting the upper frame portion 21 and the lower frame portion 22 are formed. . It should be noted that the upper and lower frame portions 21 and 22 and the rising frame portion 23 have a substantially U-shape for pinching.
Forming portion X is formed. The bent piece 2a is located on the upper frame 21.
The upper frame portion 21 and the bent piece portion 2a have a substantially inverted shape, and extend upward at a predetermined angle from the horizontal end position.
And, on the bent piece portion 2a of the upper frame portion 21, the lifting string 5 is provided.
Are provided, and in this example, the locking holes 6 are provided.
1 (not limited to the locking hole 61; the same applies hereinafter). It is preferable that the locking hole 61 also serves as a mounting hole for the horizontal frame member 4 .

[0017] position of the lifting cord 5 is engaged with the engaging hole 61, the magnitude of挾込free side ditch lid block A via the clamping device main body 1 of substantially C-shaped, selects an appropriate locking hole 61 Is determined. An essential requirement for the selection of the locking hole 61 is that the locking portion 6 of the lifting cord 5 needs to be slightly forward of the center of gravity W of the gutter cover block A to be lifted. In the other smaller gutter cover block (not shown), the inner side locking hole 61 is formed.
(From the engaging hole 61 used in the illustrated example, the rising frame 2
The locking holes 61 are located in the three directions. ).
Therefore, as described above, when the gutter cover block A or the like is lifted via the substantially U-shaped holding tool body 1 and the lifting string 5, the holding side A1 becomes lower and the free side A31 on the horizontal surface on the ground. Is held in a suspended posture in which the upper part is upward. The reason why the bent piece portion 2a is provided is that, for example, from the side groove cover block A, the substantially U-shaped
In order to make it easier to pull out the main body 1 of the shape, the upper surface A11 of the side groove cover block A constitutes a draft gradient space Y, to maintain the above-mentioned lifting posture, or to facilitate the insertion into the side groove cover block A. And so on.

[0018] Subsequently explained is clamped tool body 11 of substantially credit L-shaped L-shaped groove block B shown in FIGS. 11 to 20, clamping device main body 11 of the substantially losses L-shaped, L-shaped groove block B Upper surface B11 of rising wall B41 on clamping side B1
An upper frame portion 121 having a bent piece portion 12a attached to the
A substantially inverted L-shaped holding plate 12 having a locking claw 7 locked on the inner surface B51 of the rising wall and a lifting locking portion 8 locking the holding side B1 of the lower surface B21; 13 and a number of horizontal frame members 4 (hereinafter simply referred to as 4) which frame the two substantially inverted L-shaped sandwiching plates 12, 13.
It is configured. The upper frame portion 121, the locking claw 7, the suspension locking portion 8, and the rising frame portion 123 form a substantially inverted L-shaped holding portion X1. Further, the bent piece portion 12a extends upward at a predetermined angle from the horizontal end position of the upper frame portion 121, and the upper frame portion 121 and the bent piece portion 2a have a substantially inverted shape. The substantially inverted L-shaped holding plate 12 ( substantially inverted L-shaped)
The holding plate 13 has the same configuration, and only one side will be described in principle. ) Is an upper frame portion 121 made of a single steel plate and having a bent piece portion 12a, and the lifting engagement portion 8 serving also as a lower frame portion facing the upper frame portion 121. , And a rising frame portion 123 connecting the upper frame portion 121 and the suspension locking portion 8. And the upper frame
The hooking portion 6 of the hoisting string 5 is
Are provided, and in this example, the locking holes 61 are provided. It is preferable that the locking hole 61 also serves as a mounting hole for the horizontal frame member 4.

[0019] position of the lifting cord 5 is engaged with the engaging hole 61, L sandwiching the clamping device main body 11 of substantially credit L-shaped
In this configuration, an appropriate locking hole 61 is selected and determined according to the size of the mold side groove block B. An essential requirement for the selection of the locking hole 61 is that the locking portion 6 of the lifting cord 5 is required to be slightly forward of the center of gravity W of the L-shaped side groove block B to be lifted. For example, in the other L-shaped side groove block (not shown) smaller than the illustrated example, the inner side locking hole 61 is formed.
(Referred to as the locking hole 61 located in the direction of the rising frame 123 from the locking hole 61 in the illustrated example). Therefore, as described above, through the cord 5 almost losses L-shaped clamping device main body 11 and the lifting, when lifting the L-type gutter block B, etc., on the ground horizontal plane, its挾included side B1 is below its free A structure in which the side B31 faces upward and the locking claw 7 and the lifting locking portion 8 hold a hanging posture in which the inner surface B51 of the rising wall and the clamping side B1 of the lower surface B21 are narrowed. Has become. A continuous curved surface 7a for hiccups is provided at a portion where the upper frame portion 121 and the locking claw 7 are connected, and a lower curved surface 8a for hiccups is provided on the lower surface of the suspension locking portion 8, respectively. And the L-shaped side of the block clamp
It is configured to smoothly swing a guide for hiccup or a block holding device when pulling out the groove block B. In the figure, Y1 denotes the bent piece portion 12a and the L-shaped side groove block B.
This is a gradient space for extraction composed of

[0020]

According to the present invention, as detailed above, almost
The side groove cover block or the L-shaped side groove block (hereinafter, simply referred to as each block) is sandwiched by the U-shaped holding portion or the substantially inverted L-shaped holding portion, and the upper frame portion is positioned from the horizontal end. A lifting string is provided on a bent piece portion extending upwardly and separated from the upper surface of the side groove cover block. Therefore, a substantially U-shaped clamping portion or a substantially inverted L
By using the shape holding part, it is easy and quick
To help prevent slip-through when lifting or suspending the rack,
Also, when installing each block using the draft slope space
That the work can be done smoothly and quickly.
The draft space has a cushioning effect when lifting each block.
It has the feature that it can be used and each block can be lifted gently.
There are effects such as In addition, in the present invention, as a whole effect, no human means is required, which helps to reduce the number of workers, or frees from heavy labor, and helps to the health of workers (no back pain, no injury, etc.). In addition, the present invention has practical effects such as ensuring work safety and eliminating various troubles when installing the block group.

[Brief description of the drawings]

FIG. 1 A substantially U-shaped clamp used for a gutter cover block
FIG. 3 is an overall perspective view of a main body .

FIG. 2 is a perspective view of a gutter cover block in a suspended state.

FIG. 3 is a side view of a gutter cover block in a lifted state.

FIG. 4 is a perspective view showing a state in which a gutter cover block is placed on a girder pallet.

FIG. 5 is a side view showing a state in which a substantially U-shaped clamp body is sandwiched between side groove cover blocks.

FIG. 6 is a side view showing a suspended state of the gutter cover block.

FIG. 7 is a plan view of a side groove.

FIG. 8 is a side view showing a state where one side of the side groove cover block is placed in the side groove.

FIG. 9 is a side view showing a state where the other side surface of the gutter cover block is placed in the gutter.

10 is a side view showing a state in which a substantially U-shaped clamp body is removed from the state of FIG. 9 and a side groove cover block is installed.

FIG. 11 shows an approximately inverted L-shape used for an L-shaped side groove block.
It is the whole perspective view of a clamp body .

FIG. 12 is a perspective view of an L-shaped side groove block in a lifted state.

FIG. 13 is a side view of the state in which the L-shaped side groove block is lifted.

FIG. 14 is a perspective view showing a state where the L-shaped side groove block is placed on a girder-shaped pallet.

FIG. 15 shows a substantially inverted L-shaped clamping device in an L-shaped side groove block.
It is a side view which shows the state which pinched the body .

FIG. 16 is a side view showing a state where the L-shaped side groove block is lifted.

FIG. 17 is a schematic view showing a state where mortar is laid on a road surface.

FIG. 18 is a side view showing a state where one side of the L-shaped side groove block is placed on a mortar.

FIG. 19 is a side view showing a state where the other side surface of the L-shaped side groove block is placed on a mortar.

FIG. 20 is a side view showing a state in which a substantially L-shaped clamp body is extracted from the state of FIG. 19 and an L-shaped side groove block is installed.

[Explanation of symbols]

1 substantially U-shaped clamp body 2 substantially U-shaped clamp plate 2a bent piece 21 upper frame 22 lower frame 23 rising frame 3 substantially U-shaped clamp plate 4 lateral frame material 5 lifting string 6 Locking portion 61 Locking hole 11 Substantially inverted L-shaped clamping device body 12 Substantially inverted L-shaped clamping plate 12a Bending piece 121 Upper frame portion 123 Rising frame portion 13 Substantially inverted L-shaped clamping plate 7 Locking claw 7a Curved surface 8 Suspended locking portion 8a Curved surface A side groove cover block A1 clamping side A11 upper surface A21 lower surface A31 free side W center of gravity position B L-shaped groove block B1 clamping side B11 upper surface B21 lower surface B31 free side B41 rising wall B51 standing the inner surface X substantially C-shaped clamping portion X1 substantially losses L-shaped clamping portion Y vent gradient space Y1 vent gradient space of the top wall

Claims (2)

(57) [Claims] An upper and lower frame portion and a base end of the upper and lower frame portions are connected.
Rising frame part and the upper frame part
A pair of holding plate members constituted by bent piece portions extended
And a horizontal frame for holding the pair of holding plates at appropriate intervals.
When viewed from the side, it is almost U-shaped and the bent piece
Holder body for holding block and lifting of block
Position is located forward of the center of gravity of the
The block and the holding device to be locked at the tip of the bent portion
A block clamp consisting of a lifting string and a lifting string
A holding device, wherein the upper and lower frames and the rising frame of the block
To form a substantially U-shaped clamping part similar to the clamping side of
In addition, pull out between the bent piece part and the upper surface of the block.
A clamping type block clamping device characterized by forming a gradient space for use . 2. An upper frame portion and a lifting engagement portion, and the upper frame portion and a suspension
The rising frame portion connecting the base ends of the upper locking portions and the upper frame portion
Folded piece and inclined front extending from the free end
A pair of clamping plates composed of locking claws provided at the free ends, and
Horizontal frame material for holding a pair of clamping plates at appropriate intervals
When viewed from the side, it is almost L-shaped and the folded piece
Holder body for holding block and lifting of block
Position is located forward of the center of gravity of the
The block and the holding device to be locked at the tip of the bent portion
A block clamp consisting of a lifting string and a lifting string
An upper frame portion, a lifting engagement portion, and a rising frame portion of the block holding device.
When forming an almost inverted L-shaped holding part for holding the block with
In both cases, pull out between the bent piece and the upper surface of the block.
A block-type block clamp characterized by forming a gradient space for use .