JPH0114596Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to an improvement of a floor sheet winding machine that winds various long and narrow strip floor sheets made of various materials such as plastic (PVC) and rubber.

(Description of Prior Art) The inventor of the present application has focused on the troublesome work of rolling up floor sheets spread on the floor, especially among the work of laying and rolling up floor sheets on a vast floor such as a gymnasium. We have already invented and developed a floor sheet winding machine to solve problems such as poor work efficiency and uneven winding due to meandering winding (commonly known as bamboo shoot winding).

That is, three wheels each on the left and right sides of the frame including at least one drive trochanter are driven by a transmission mechanism having a friction clutch that can adjust the friction force from the left and right wheels that are loosely fitted to the axle. It consists of a child group, 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.
The floor sheet is sequentially wound up by rotating a winding core whose ends are supported under pressure by three groups of trochanters on both the left and right sides as the frame moves by hand. This is a floor sheet winding machine.

(Problem to be solved by the invention) However, in the conventional floor sheet winding machine described above, when the winding core is supported under pressure by three trochanter groups on each side of the left and right sides of the frame, the driving force on both the left and right sides is The trochanter, and therefore the left and right wheels, rotate as they are connected to each other, and if you push the frame normally, the frame will naturally move straight, making it possible to roll the floor sheet in a serpentine or bamboo roll. It should be possible to wind the winding straight onto the core to avoid the winding, but in reality, the frame does not run on rails, so it is not always possible to manually push the winding in a straight line. Due to slight deviations in thickness, it is impossible to always wind the floor sheet in a straight line around the winding core to avoid complete serpentine or bamboo winding. Therefore, the problem is that when the floor sheet being wound around the core winds in a meandering or bamboo-like manner, it is most important to visually detect this as soon as possible and correct it by steering the frame. be.

In the above-mentioned conventional floor sheet winding machine, the part that detects serpentine winding and bamboo winding of the floor sheet is the upper part of the core winding, so it is easy for the operator to see and sense it. When the operator detects and confirms the meandering winding at the upper part of the core winding, the meandering winding has already progressed, and even if the worker corrects it immediately, the winding core will continue to rotate for at least half a rotation. The meandering winding (diagonal winding) continues and becomes larger. Therefore, it is not easy to correct the meandering winding by steering the frame, and sometimes it becomes necessary to unwind and wind again, which is a big problem.

(Means for Solving the Problems) Therefore, in order to solve the above problems, the inventor of the present application conducted further research and succeeded in devising an improved floor sheet winding machine as described below. It is.

This invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a frame having a rear rod 1a and a front rod 1b, and vertical side plates 1c are provided on both left and right ends of the frame. Left and right axles 2 are provided at the lower central portions of the left and right side plates 1c, 1c so as to project outwardly, respectively, on the same horizontal axis in the lateral direction. A large gear 3 is loosely fitted to the left and right axle 2 so as to be freely rotatable, and then left and right wheels 5, each having a friction clutch 4 that can be frictionally welded to the outer surface of the large gear 3, are rotated. The coil springs 6 are fitted loosely and slidably in the axial direction, and then the coil springs 6 are fitted, and finally the adjustment set screws are screwed onto the outer (tip) end threads of the left and right axles 2, 2. 7 are screwed into each. Therefore, by appropriately tightening the left and right adjusting set screws 7, the left and right wheels 5 are pressed inward through the respective coil springs 6, and each friction clutch 4 is connected to the large gear 3.
Press the left and right wheels 5 and insert the clutch.
The left and right large gears 3 are configured to be able to rotate integrally with respect to the left and right axles 2, respectively. Reference numerals 8 and 8 refer to front and rear wheels on both left and right sides, which are rotatably installed on both sides of the upper left and right sides of the left and right side plates 1c above the left and right axle 2, respectively, on the left and right horizontal horizontal axes, passing through the left and right side plates 1c, respectively. The left and right driven shafts 8, 8 each have small gears 9, 9 at their outer ends that mesh with the large gear 3, respectively.
However, the drive rotors 10 are each integrally wedged to the inner ends. Next, reference numerals 11 and 11 refer to rotary grips whose lower ends are respectively pivotally connected to the left and right side plates 1c by pivots 12, and when the two are vertically erected, the two driving trochanters 10, 10 on both the left and right sides are connected to each other. Rotatable trochanters 13 are respectively mounted at apex positions forming a substantially isosceles triangle. That is, on both the left and right sides of the frame 1,
3 with two driving trochanters 10 and one trochanter 13
Each trochanter group is provided separately. Both end portions of the winding core P are supported by the three trochanter groups on each of the left and right sides as shown in the figure. When in position, the two front and rear drive trochanters 10, 10
Place both ends of the winding core P on top, and then turn the rotating grip 1.
1 in the directions of the arrows, and the trochanter 13 is placed on the straight line S passing through the center of the pivot 12 and the center O of the winding core P.
When the center of the trochanter 13 reaches the center of the winding core P, the trochanter 13 is in the state of being in the strongest pressure contact with the winding core P (the outer rubber ring of the trochanter 13 is indented by the pressure contact of the winding core P), but from this state position it is slightly more The movable grip 11 is rotated forward and stopped, and at that position, the trochanters 13 are brought into pressure contact with the outer circumferential surface of the end portion of the winding core P, thereby supporting the winding core P under pressure. At this time, stoppers 14 are provided on both side plates 1a to prevent the rotating grip 11 from rotating forward any further. Therefore, the rotary grip 11 is prevented from rotating forward from the above state by the stopper 14, and from rotating backwards in the opposite direction, the trochanter 13 is the strongest pressure contact point with the winding core P. Since it moves in the direction of a certain line S, it cannot be rotated arbitrarily. That is, the trochanter 13 stably supports both ends of the winding core P under pressure without moving unnecessarily from the above state. Next, reference numeral 15 denotes a caster mounted on the lower center surface of the rear part of the frame 1. Further, 16 is a push handle. Furthermore, as shown in FIG. 3, the left and right side plates 1c are each provided with pawl plates 17 which are pivotally connected by a support shaft 18 to prevent the rear small gear 9 from reversing. A spring 19 is tensioned between one end of the left and right claw plates 17 and the frame 1, respectively, and the ends are connected to the left and right levers (not shown) of the push handle 16, respectively, by operating cables. In the winding machine having the above configuration, the winding core P is rotated as the frame 1 is manually pushed by the push handle 16, and the floor sheet 20 laid on the floor is sequentially wound up. The above is a floor sheet winding machine that has already been developed by the inventor of the present application.

Therefore, this invention has been devised to provide the floor sheet winding machine with a frame 1 in front of the frame 1.
Sheet guide side plates 22 that are parallel and horizontal and perpendicular to both left and right ends are provided to protrude upward at intervals with a clearance slightly wider than the width of the floor sheet 20, and are separated upward into left and right in a straight line. A supporting frame 21 on which rolls 24, 24 are installed horizontally so as to be freely rotatable is integrally connected and fixed to the frame 1 by two right and left mounting rods 25, and the floor sheet 20 is attached to the upper surface of the left and right guide rolls 24. It is characterized in that it is wound around a winding core P through the winding core P. In addition, 23 is the left and right guide roll 24
It is a central support plate that supports the support frame 21, and is protruded from the upper center surface of the support frame 21, and a front caster 31 is attached to the lower center surface of the support frame 21, which is used when children ride on it and play. This is a safety protection device that prevents damage to the floor surface, and normally floats above the floor and does not come into contact with it. Note that the left and right guide side plates 22, 22 are used when winding up the floor sheet 20.
Approximately 2.5m/m on both sides, total approximately 5.0m/m
The guide side plates 22 are provided at intervals such that a clearance of The floor sheet 20 is designed to be easily introduced and fed out. Both mounting rods 25 have hook portions 25' at their base ends.
The mounting rods 25 each have a hook portion 25' as shown in FIG.
The base rod portions 25a each having a diameter a are engaged with the frame 1, and the lower rod 27 is integrally connected and fixed to the lower surface thereof by screwing a bolt 28 and a nut 29. The support frame 21 is integrally fixed to both the left and right fixtures 26 with respective set screws 30.

(Function) When the push handle 16 is pushed to move the frame 1 by hand, the winding core P is rotated accordingly, and the floor sheet 20 laid on the floor is moved by the left and right guide rolls 24, 24 of the front support frame 21. It is wound onto the core P in sequence through the upper surface. In this case, if any of the left and right guide side plates 22 of the floor sheet 20 that is being wound up one after another shifts to one side and the ears come into contact with each other, the frame 1 is immediately moved in the direction of the shift. The meandering is detected and corrected in front of the core P winding machine by appropriately steering the winder to correct the meandering, and winds up an appropriate floor sheet 20.

(Effect) As mentioned above, this idea has a
Vertical seat guide side plates are provided on both left and right ends, respectively, at intervals with a clearance slightly wider than the width of the floor seat, and a support frame is installed horizontally on which left and right guide rolls can rotate freely. Since the floor sheet is integrally connected and fixed to the frame by the rollers and wound onto the core through the upper surfaces of the left and right guide rolls, the front position of the floor sheet before being wound onto the core is as described above. Since the meandering state of the floor sheet can be immediately detected by visually observing the state of the floor sheet passing between the left and right guide side plates, the meandering can be corrected quickly, sensitively and easily by immediately steering the frame. Unlike those that detect and correct meandering after the meandering has started, the meandering of the floor sheet can be corrected before it is wound onto the core, resulting in stable straightness that does not always cause meandering or bamboo-like winding. It has an outstanding effect of being able to perform linear winding. In addition, the guide rolls are separated into left and right and are separated into two free rolls, so when the floor sheet shifts to the side, the left and right guide rolls rotate freely on the left and right sides individually according to the flow of the floor sheet. It has excellent effects such as not damaging the floor sheet or causing any trouble.

[Brief explanation of drawings]

The drawings show an embodiment of this invention; FIG. 1 is a side view, FIG. 2 is a plan view, FIG. 3 is an enlarged side view of the core support, and FIG. 4 is a perspective view of the main parts. 1...Frame, 1a...Rear bar, 1b...Front bar, 1c...Side bar, 2...Axle, 3...Large gear,
4...Friction clutch, 5...Wheel, 6...Coil spring, 7...Adjustment set screw, 8...Passive shaft, 9...
Small gear, 10... Drive trochanter, 11... Rotating grip,
12... Pivot, 13... Trochanter, 14... Stopper, 15... Caster, 16... Push handle, 17... Pawl plate, 18... Support shaft, 19... Spring, 20... Floor seat, 21...Support frame,
22...Guiding side plate, 22a...Bending portion, 23...
Central support plate, 24... Guide roll, 25... Mounting rod, 25a... Base rod part, 25'a... Hook part, 25
b...Diagonal rod portion, 25c... Front rod portion, 26... Fixing tool, 27... Lower rod, 28... Bolt, 29...
Nut, 30...stop screw, 31...front caster,
O...center, P...core, S...straight line.

Claims (1)

[Scope of utility model registration request] Groups of three trochanters on each side of the frame, including at least one drive trochanter driven by a transmission mechanism having a friction clutch capable of adjusting friction force from the left and right wheels loosely fitted to the axle. It consists of 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 activated by operating a lever installed on the push handle at the rear of the frame. In a floor sheet winding machine, a winding core, whose both ends are supported under pressure, is rotated as the frame moves by hand to sequentially wind up the floor sheet. Vertical sheet guide side plates are provided on both the left and right ends of the floor sheet, respectively, with a clearance slightly wider than the width of the floor sheet. A floor sheet winding machine characterized in that an erected support frame is integrally connected and fixed to a frame by a mounting rod, and the floor sheet is wound around a winding core via the upper surfaces of the left and right guide rolls. .