JPS6341817B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a floor sheet winding machine for winding various long and narrow strip floor sheets made of various materials such as plastic and rubber.

Traditionally, for example, in the work of laying floor sheets on a vast floor such as a gymnasium, or rolling up and storing them,
When laying a sheet, it is relatively easy to roll the rolled sheet onto the floor, but winding up the sheet that is already laid out on the floor is particularly troublesome and labor-intensive. Moreover, it was not possible to wind it straight, resulting in meandering winding (commonly known as bamboo shoot winding), and the edges of the winding tended to be uneven, making it very difficult to clean up after winding.

Therefore, some attempts have been made to develop a traveling floor sheet winding machine, but the conventional machines had various mechanical and functional drawbacks, and there were no suitable machines available at all.

The present invention has been made in view of the above, and it is an object of the present invention to provide a floor sheet winding machine as described below to eliminate the above-mentioned drawbacks and to meet the conventional demands of the industry.

The present invention will be described in detail with reference to embodiments shown in the drawings.

Reference numeral 1 denotes a frame, and vertical side plates 1a are provided on both left and right sides of the front end of the frame. Left and right axles 2 are provided at the lower central portions of the left and right side plates 1a, 1a, respectively, and project outward on the same horizontal axis in the lateral direction. First, large gears 3 are loosely fitted to the left and right axles 2, respectively, with bearings 4 and thrust bearings 5 interposed therebetween, so that they can rotate freely, and then the large gears 2
The left and right wheels 6 each have a friction clutch 8 integrally attached thereto, each having a clutch plate 8a that can be frictionally welded to the outer surface thereof, and are fitted loosely through bearings 7 so as to be freely rotatable and axially slidable. The coil springs 9 are fitted respectively, and finally the left and right axles 2,
Adjustment set screws 10 are screwed into each tip (outer) end threaded shaft portion of 2, respectively. Therefore, by appropriately tightening the left and right adjusting set screws 10, the left and right wheels 6 are pressed inwardly through the respective coil springs 9, and each clutch plate 8a is pressed against the large gear 3, respectively, and the friction clutch is engaged. The left and right wheels 6 and the left and right large gears 6 are configured to rotate integrally with respect to the left and right axles 2, respectively. Reference numerals 11 and 11 denote front and rear wheels on both left and right sides, which are rotatably installed on both sides of the upper left and right side plates 1a of the upper portions of the left and right axle 2, respectively, passing through the left and right side plates 1a on the horizontal axis in the left and right lateral directions, respectively. The left and right driven shafts 11, 11 each have small gears 12, 12 meshing with the large gear 3 at their outer ends, and a driving rotor 13 integrally wedged at their inner ends. Next, 14 and 14 respectively connect the lower ends to the left and right side plates 1a.
The left and right rotating grips 14 are respectively pivotally connected by pivots 15 to the vertices, which form a substantially isosceles triangle with the two front and rear driving trochanters 13, 13 on both the left and right sides when each is vertically erected. Trochanter 1 that can rotate freely depending on the position
6 are installed respectively. That is, three trochanter groups each consisting of two driving trochanters 13 and one trochanter 16 are provided on both left and right sides of the frame 1. Both ends of the winding core P are supported by the three trochanter groups on the left and right sides as shown in the figure. position, the two front and rear drive trochanters 1
Place both ends of the winding core P on 3 and 13, and then rotate the rotary handle 14 in the direction of the arrow, respectively, until it is rotated onto a straight line S passing through the center of the pivot 15 and the center O of the winding core P. When the center of the child 16 is reached, the trochanter 16 is in the state where it is most strongly pressed against the winding core P (the outer rubber ring of the trochanter 16 is depressed by the pressure contact with the winding core P). The rotary grip 14 is slightly rotated forward and stopped, and at that position, the trochanters 16 are brought into pressure contact with the outer circumferential surface of the end of the winding core P, thereby supporting the winding core P under pressure. At this time, both side plates 1a are pressed to prevent the rotating grip 14 from rotating forward any further.
A stopper 17 is provided protruding from each side. Therefore, the rotation grip 17 is prevented from rotating forward from the above state by the stopper 17, and from rotating backward in the opposite direction, the trochanter 16 is prevented from rotating in the strongest pressure contact with the winding core P. Since it moves in the direction of line S, it cannot be rotated arbitrarily. That is, the trochanter 16 stably supports both ends of the winding core P under pressure without moving unnecessarily from the above state. Next, reference numeral 18 denotes a caster (universal leg wheel) attached to the lower center rear surface of the frame 1. Reference numeral 19 denotes a push handle having a grip portion 19b provided at the upper end of a grip shaft 19a extending diagonally rearward and upward from the rear of the frame 1. As shown in FIG. 1, levers 20 are provided on both left and right sides of the handle portion 19b. Further, as shown in FIG. 4, the left and right side plates 1a are each provided with pawl plates 21 which are pivotally connected by a support shaft 22 to prevent the rear small gear 12 from reversing. A spring 23 is tensioned between one end portion of the left and right claw plates 21 and the frame 1, respectively, and the end portions are connected to the left and right levers 20 of the handle portion 19b by operating cables 24, respectively. Under normal conditions, the claw plates 21 are in the state shown by the chain line A in FIG. 4 due to the action of the spring 23, and the rear pinion gears 12 are in a state where they can rotate freely. The left and right pawl plates 21 are rotated by the indexing by the cables 24, respectively, against the spring 23, and the respective pawls 21a are fitted into the left and right rear small gears 12, as shown in the dotted line A in Figure 4, and the left and right The rear drive rotor 13 is prevented from reversing. That is, they each constitute a reverse rotation prevention mechanism T for the drive rotor 13. As described above, this invention sequentially winds the floor sheet 25 by rotating the winding core S, whose ends are supported by three trochanter groups on both the left and right sides, as the frame 1 moves by hand. It was designed to be taken with you. The above description has been made on an example of the embodiment shown in the drawings, and the design can be modified as appropriate, for example, by using one drive rotor 13 on each side or by using a transmission mechanism other than a gear transmission mechanism.

Next, to explain the working state of the embodiment shown in the drawings, first, as described above, the winding core P, whose both ends are supported by three groups of trochanters on both the left and right sides, is placed on the floor as shown in FIG. The winding start end of the floor sheet 25 laid on the floor sheet 25 is placed in a slightly rolled state in advance, and the operator grasps the handle 19b of the push handle 19 and pushes the frame 1. At this time, the winding core P is Drive rollers 13 on both the left and right sides are supported by clamping pressure.
The frame 1 moves straight and the floor sheet 25 is sequentially wound around the winding core P.

Since this invention is constructed as described above, when the winding core for winding the floor sheet is not attached to the frame, the left and right wheels can rotate independently and the casters can rotate freely, respectively. The frame can be moved freely, lightly and easily to any desired location, and when the winding core is supported with clamping pressure by groups of three trochanters on each side of the frame, the drive trochanters on both the left and right sides, The wheels on both the left and right sides are connected to each other and rotate, and if you push the frame normally, it will naturally move straight, so the floor sheet will not wind up in a serpentine or bamboo shoot shape. It has excellent effects such as being able to be wound straight around the winding core and being extremely efficient.

In addition, if the floor sheet meandered during the winding process, if the worker tries to change the running direction of the frame by force in the meandering direction, the friction clutch functions like a car differential, and the clutch The meandering can be corrected at will while the board is sliding or being pulled, and since it uses a friction clutch, even if the amount of winding the floor sheet to the winding core increases, both the left and right wheels will slip and rotate, allowing the sheet to be wound up. It has excellent effects such as not causing any problems.

Furthermore, since the left and right drive trochanters are each equipped with a reversal prevention mechanism that is activated by lever operation, if the floor sheet sag or loosens during winding operation, the reversal prevention mechanism is activated. This has the effect of making it easy to extend the floor sheet straight by pulling back the frame. Further, since the friction force of the friction clutch can be adjusted, the friction force can be adjusted appropriately depending on the wear of the friction lining or the type of floor sheet, so that stable and proper work can be performed at all times.

[Brief explanation of the drawing]

The drawings show an embodiment of the floor sheet winding machine of the present invention, and FIG. 1 is a partially cutaway front view;
2 is a side view of the same, FIG. 3 is a plan view of the same, FIG. 4 is an enlarged side view of essential parts, and FIG. 5 is a longitudinal sectional front view of the same. 1... Frame, 1a... Side plate, 2... Axle,
3... Large gear, 4... Bearing, 5... Thrust bearing, 6
...Wheel, 7...Bearing, 8...Friction clutch, 8
a...Clutch plate, 9...Coil spring, 10...
Adjustment set screw, 11... Passive shaft, 12... Small gear,
13... Drive trochanter, 14... Rotating grip, 15...
Axis, 16... Trochanter, 17... Stopper, 18
... Caster, 19 ... Push handle, 19a
...Grip shaft, 19b...Handle part, 20...Lever,
21...Claw plate, 21a...Claw portion, 22...Spindle,
23... Spring, 24... Operating cable, 25... Floor sheet, O... Center, P... Winding core, S... Line,
T...Reverse rotation prevention mechanism.

Claims (1)

[Claims] 1. Three wheels each on the left and right sides of the frame, including at least one drive trochanter, which are driven from the left and right wheels loosely fitted to the axle by a transmission mechanism interposed with a friction clutch capable of adjusting the friction force, respectively. It consists of a group of trochanters, a caster attached to the lower center of the rear part of the frame, and a reversal prevention mechanism for the drive trochanter that is operated by operating a lever provided on a push handle at the rear of the frame. A floor sheet winding machine characterized in that a winding core whose both ends are supported by a group with clamping pressure is rotated as a frame moves by hand to sequentially wind up a floor sheet.