JPH0213634Y2 - - Google Patents

Description

[Detailed explanation of the invention] <Industrial application field> This invention is mainly used for installing waterproof sheets on flat roofs such as the roofs and roofs of buildings and residences, or on other wide flat surfaces. The present invention relates to a roll sheet transport and traction device used for mounting sheets and transporting roll sheets.

<Conventional technology> In general, for waterproofing a roof, a thickness of 1.2 mm, for example, is used.
(or 2 mm), length 20 m (or 10 m), width 1.2 m (weight approximately 40 kg), butyl rubber is wound into a roll and then glued to the roof surface.

In this case, conventionally, a roll-shaped sheet was first rolled out and adhesive was applied to its inner surface, and after drying, it was rolled up again into a roll with the adhesive-applied side facing inside, and the adhesive was also applied to the roof surface in the same way. After drying, the roll sheet is rewound and unrolled, and the adhesive coated surfaces are bonded together by pressure. In order to unwind the sheet from the roll sheet, a rod-shaped shaft is loosely fitted into the center of the roll, the projecting ends on both sides are held by different workers, and the unrolled end of the sheet is fixed with adhesive and moved backwards, accompanied by rotation of the roll. It is carried out with

<Problems to be solved by the invention> However, the method described above requires two people to hold and move the rolled sheet, and at least three people to press and adhere the sheet while aligning the edges of the unrolled sheet.
Not only does it require a human worker, it is also inefficient, and because the timing of the movement of the two workers holding the rolls is difficult to match, the sheet cannot be aligned in the correct position, and the misaligned direction and position can be corrected. If this is attempted, the attached sheet may become wrinkled or uneven, resulting in inconveniences such as the finished product not being flat.
There were other problems such as being inconvenient to carry.

<Means for solving the problems> The traction device of the present invention is intended to solve the above problems, and has two handles 3 on the left and right at the top,
A frame 1 that pivotally supports two left and right wheels 7 is provided below, and two forks 15 projecting forward from the bottom of the frame 1.
5 is provided with a roll shaft support part 19 that supports both ends of the roll shaft 18 of the roll sheet 16 in a fixed position so that the roll sheet 16 can rotate, and the fork 15 is inserted into the lower part of the roll shaft 18 and the wheel 7 is The present invention is characterized by a mechanism for lifting the roll sheet 16 in a rotatable state by tilting and swinging the frame 1 backward as a fulcrum.

<Function> In the present invention as described above, one worker holds the handles 3, 3, tilts the frame 1 backward, and moves the vehicle as a two-wheeled vehicle by touching the wheels 7, 7 to the ground. As shown in the figure, the frame 1 is erected at the lower part of the protruding ends on both sides of the roll shaft 18, which is placed on a flat surface and loosely fitted into the center of the roll sheet 16 in which the sheet 16a is wound into a roll. Insert the tip of the fork 15 in front of the frame 1, and then tilt the frame 1 backward again at a certain angle, the roll shaft 18 will be lifted and supported by the forks 15, 15, and
The roll sheet 18 rolls backward on the rolling surface 15a of the roll sheet 15 and enters the recess 19, and the roll sheet 18 becomes rotatably supported.

Sheet 16a of roll sheet 16 in the above state
(Accompanying this, the roll sheet 16 is rotated counterclockwise so that the adhesive-applied surface is facing downward), and the rolled sheet 16 is sequentially pasted onto the floor surface etc. from the pulled out end, and the pasting process is performed. As the process progresses, the frame 1 is sequentially retreated and the sheet 16a is fed out to continue the next work.

<Example> To explain in detail the example shown below, the frame 1 of the traction device is made of a pipe material bent into a U-shape consisting of a low side 8 and side sides 2, 2, and the upper end of each side 2 is A handle 3 is formed. Brackets 4, 4 are provided protruding from the lower back surface of each side 2, and bearings 5, 5 are attached to the tips of the brackets, through which a wheel axle 6 is inserted and supported in parallel to the lower side 8. Wheels 7, 7 are rotatably supported on both protruding ends of the wheel shaft 6, and the frame 1 with the handle 3 from the rear side constitutes a two-wheeled push vehicle. The wheel axle 6 does not need to be a single continuous piece in the left and right directions, but may be supported by the brackets 4, 4 separately.

A plate-shaped or rod-shaped brake mounting rod 9 is installed above the low side 8 of the frame 1 in parallel to the low side 8 between the side sides 2, 2, and is further installed near the vertical midpoint between the side sides 2, 2. A reinforcing rod 10 in the form of a pipe is similarly stretched over the holder. A bottom plate 11 is placed in front of the lower end of each side 2.
An angled mounting plate 1 consisting of a and a vertical plate 11b
1 is attached in an L shape by welding etc.
A beam engaging portion 11c having a downward groove is provided at the upper end of the vertical plate 11b so as to protrude from the front.

Fork beams 12, 12 each having an angular cross section are inserted into the mounting plate 11 from both outer sides so that the upper end is inserted into the beam engaging portion 11c and the outer surface is overlapped with the angular inner surface of the mounting plate 11. Each fork beam 12 is fastened to its respective mounting plate 11 with bolts 14 via long holes 13 in the left and right direction formed in each fork beam 12.

Plate-shaped forks 15 are vertically fixed to the outer ends of the fork beams 12 and project forward in parallel to each other, and on the upper surface of the forks 15 are rolls on which a sheet 16a is wound. A U-shaped recess 19 consisting of a notch is formed to rotatably accommodate the roll shaft 18 loosely fitted into the core tube 17 of the sheet 16, and the front upper surface of the recess 19 descends with a gentle curve to form the shaft rolling surface 15a. form,
The upper portion of the tip protrudes slightly into a chevron shape as a shaft engaging portion 20 and terminates therein.

At the center of the back of the brake mounting rod 9, a brake lever 22 made of a pipe bent or curved in an inverted "H" shape is swingably supported via bearings made of a pair of brackets 21. The lower end of the lever 22 protrudes upward from between the brake mounting rod 9 and the frame side 8 toward the front side, and a plate-shaped pressing part 23 made of rubber, resin, metal plate, etc. is attached to the front of the protruding end. When the lever 22 is rotated clockwise, the pressing portion 23 is pressed against the circumferential surface of the roll sheet 16 from below, and the rotation of the roll sheet 16 is braked.

A strong coil spring 25 is stretched between the rear surface of the bent portion of the lever 22 and the upper surface of the wheel axle 6, so that the lever 22 is constantly receiving rotational force in the clockwise direction. The brake on the roll sheet 16 is released by engaging the upper part of the lever 22 with the hook-shaped engaging part 26 that protrudes from the engaging part 26. Conversely, when the lever 22 is removed from the engaging part 26, the spring 25 is released. Due to the tension, the lever 22 swings backward as shown by the arrow in FIG.
The pressing portion 23 at the lower end is pressed against the roll sheet 16, and its rotation is locked. In this state, when the device is pulled rearward as necessary, the sheet 16a is pulled rearward and becomes taut, thereby preventing wrinkles during adhesion. A bracket 21 is attached to the spring 25.
It may also be a helical spring that can be attached to the lever fulcrum.

In addition to the circular tire shown in the figure, the wheels 7 may be made of a plurality of radially protruding arms with a wheel attached to each tip (not shown as it is a well-known structure). It also makes it easier to go up and down stairs.

<Effects of the invention> With this invention constructed as described above, a roll sheet can be lifted and transported by a single worker, and when pasting the sheet on a roof, etc. Since the work can be carried out by two workers, one who unrolls it from the roll, spreads it out, and tows it, the labor of at least one person can be saved. Furthermore, unrolling from the roll, accurate positioning, etc. can be easily and quickly performed, work efficiency is good, and wrinkles and unevenness do not occur during installation.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall structure of the device of the present invention;
FIG. 2 is also a side sectional view thereof. 1... Frame, 2... Side, 3... Handle, 4... Bracket, 5... Bearing, 6... Wheel axle, 7... Wheel, 8... Bottom, 9... Brake mounting rod, 10 ... Reinforcement rod, 11 ... Mounting plate, 11
a...Bottom plate, 11b...Vertical plate, 11c...Beam engaging portion, 12...Fork beam, 13...Long hole, 14...Bolt, 15...Fork, 15a
...Axle rolling surface, 16...Roll sheet, 16a...
... Sheet, 17 ... Heart tube, 18 ... Roll axis, 1
9... Recessed portion, 20... Shaft engaging portion, 21... Bracket, 22... Brake lever, 23... Pressing portion, 25... Spring, 26... Engaging portion.

Claims (1)

[Claims for Utility Model Registration] 1. A frame 1 having two left and right handles 3 on the top and two left and right wheels 7 on the bottom.
and two forks 15 protruding forward from the bottom of the frame 1, each fork 15 has both ends of the roll shaft 18 of the roll sheet 16 held in a fixed position such that the roll sheet 16 can rotate. A mechanism for lifting the roll sheet 16 in a rotatable state by installing a supporting roll shaft support part 19, inserting the fork 15 into the lower part of the roll shaft 18, and swinging the frame 1 backward using the wheel 7 as a fulcrum. Conveyance and traction device for rolled sheets. 2. The roll shaft support part 19 of the fork 15 is a recessed part that accommodates the roll shaft 18, and the front upper surface of the roll shaft support part 19 of the fork 15 is
Conveyance and traction of a roll sheet according to claim 1, in which the roll shaft rolling surface 15a moves and guides the roll shaft 18 to be housed in the roll shaft support 19 by tilting the roll rearward. Device. 3. A fork beam 12 in which a mechanism for attaching each fork 15 to the frame 1 side is provided so as to protrude inwardly from the rear end of each fork 15.
and a mounting plate 11 that is attached to the frame 1 side and supports the fork beam 12 in a horizontally adjustable manner, and is a mechanism that allows the horizontal width of the fork 15 to be adjusted. The roll sheet conveying and indexing device according to item 2.