JPH0444516Y2 - - Google Patents

Description

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

(Prior Art) Conventionally, a floor sheet winding machine for eliminating the troublesome work of winding up a floor sheet spread on a vast floor such as a gymnasium is already known.

That is, at least this invention is driven by a transmission mechanism in which a friction clutch that can adjust the friction force is inserted from the left and right wheels that are loosely fitted to the wheels, respectively. The child group, the caster attached to the rear center bottom of the frame,
It consists of a reversal prevention mechanism for the drive trochanter that is activated by operating a lever provided on the push handle at the rear of the frame, and the winding core is held in a frame with both ends supported under pressure by groups of three trochanters on each side of the left and right sides. This is a floor sheet winding machine characterized in that the floor sheet is sequentially wound and carried by rotating as the machine moves by hand.

(Problems to be Solved by the Invention) However, the conventional floor sheet winding machine described above uses a transmission mechanism in which a friction clutch that can adjust the friction force from the left and right wheels that are loosely fitted is inserted between the left and right fixed wheels. Since the drive trochanters on both the left and right sides rotate individually, even if one of the left or right wheels slips due to oil, for example, and does not rotate,
Naturally, the drive roller did not rotate and the winding core could not be rotated, making it impossible to wind up the floor sheet. Furthermore, when the running frame curves even slightly, it is difficult to run smoothly and this may cause meandering or bamboo shoots. Furthermore, when the frame is moved even when the floor sheet is not being wound up, the drive trochanter is rotated by a gear transmission mechanism with a friction clutch. It required the same amount of effort and was not easy to operate.

(Means for Solving the Problems) This invention was made to solve the above problems and is constructed as follows.

The floor sheet winding machine of this invention will be described in detail below with reference to the drawings. 1 is a frame having a push handle 31 at the rear upper part and a caster 30 at the rear center lower surface; 2 is a frame at the front of the frame 1; A differential gear 3 is attached to the center of the wheel shaft 2, and wheels 4 are fixed to the left and right sides of the wheel shaft 2, respectively. Furthermore, a wheel 2 is provided at the right end of the housing of the differential device 3.
A loosely fitted chain wheel 5 is fixed to the. Reference numeral 6 denotes an intermediate shaft parallel to the wheel 2, which is rotatably installed on the frame 1. On the right side of the intermediate shaft, a clutch piece 8 of a pin clutch 13 having a plurality of pins 13a is rotatably mounted. A chain wheel 9 is attached to the piece 8 with a friction clutch 10 interposed therebetween. That is, the chain wheel 9 and the friction plate 10a, which are loosely fitted to the clutch piece 8, are integrated under strong pressure between the nut 11 and the friction plate 10a by the interposed spring 12, so that the chain wheel 9 is normally attached to the clutch piece 8. It is configured so that it can rotate integrally with the Further, 7a is a right-hand large gear mounted on the right side of the intermediate shaft 6 so as to be movable in the axial direction by a feather key 36, and has pin holes 13b that can be engaged with each pin 13a of the pin clutch 13, and a clutch latch plate 18 described later. Each of the fitting holes 14 that can be fitted with each of the protrusions 20 are respectively provided. A coil spring 22 is interposed between the right large gear 7a and the bearing on the right side of the frame 1, and the pin clutch 1 is inserted as shown in FIG.
3, when the chain wheel 9 rotates, the right large gear 7a rotates together with the intermediate shaft 6. Further, a left large gear 7 is fixed to the left end of the intermediate shaft 6. 18 is a clutch latch plate whose one end edge is pivotally connected to the frame 1 by a hinge 19, and the other end is bifurcated and fits into the fitting hole 1 of the right large gear 7a.
A plurality of (two) protrusions 20 that can be engaged with the protrusions 4 are provided in a protruding manner. Reference numeral 16 denotes a lever that is pivotally connected to the frame 1 by a pivot 17, and has a pedal 15 at one end outside the frame 1, and an engaging portion that can engage with the raised portion 18a of the clutch latch plate 18 at the other end. 16a are provided respectively. Now, when the pedal 15 is stepped on in the state shown in FIGS. 1 and 2, the lever 16 rotates as shown by the chain line, the engaging portion 16a engages with the raised portion 18a, rotates the clutch abutment plate 18, and the protrusion 20
was inserted into the fitting hole 14, compressing the coil spring 22 and pushing the right large gear 7a to the right (to the chain line position in Figure 1), and the pin 13a came out of the pin hole 13b, and the pin clutch 13 was released. It is a state. Reference numeral 21 denotes a chain link which is connected between the chain wheel 5 on the wheel 2 side and the chain wheel 9 on the intermediate shaft 6 side, and constitutes a winding transmission mechanism A. That is, the transmission mechanism A wraps around the fixed wheels 2 of the left and right wheels 4 to which the differential gear 3 is attached.
left and right large gears 7, 7a with a friction clutch 10 and a pin clutch 13 interposed on one side driven by the
is attached to the intermediate shaft 6. and pedal 15
A clutch shifting mechanism B is constructed which engages and disengages the winding transmission mechanism A side and the large right gear 7a by engaging and disengaging the pin clutch 13 by operation. Reference numerals 23 and 23 denote front and rear passive shafts on both the left and right sides, which are rotatably installed on the frame 1 at the upper left and right sides of the intermediate shaft 6 on the horizontal axes in the left and right lateral directions, respectively. The shafts 11, 11 have small gears 24, 2 at their outer ends that mesh with the large gears 7, 7a, respectively.
4, and drive rollers 25, 25 are integrally fixed to the inner ends, respectively. Next, 28, 28 are left and right rotating grips whose lower ends are respectively pivoted to support plates 27, 27 on the left and right sides of the frame 1, and each of them is approximately
The trochanters 26 are rotatable at apex positions that engage approximately isosceles triangles with the two front and rear drive trochanters 25, 25 on both left and right sides when laid down 45 degrees forward (in the chain line position in Figure 2). are installed respectively. Further, two springs are tensioned between the rotating grip 28 and the frame 1, respectively. That is, three trochanter groups each consisting of two driving trochanters 25, 25 and one trochanter 26, which are driven via the left and right large gears 7, 7a transmission mechanism, are provided on the left and right sides of the frame 1. It is something that Both end portions of the winding core 34 are supported under pressure by the three trochanter groups on both the left and right sides, respectively, as shown in the figure. Reference numeral 32 denotes guide rolls rotatably installed horizontally at the tips of the left and right arm rods 33 which are pivotally mounted on the left and right sides of the front part of the frame 1, respectively.
It is provided horizontally and parallel to the frame 1 in front of the floor sheet 35, and has a length slightly wider than the width of the floor sheet 35.

(Function) When the push handle 31 is pushed to move the frame 1 by hand in the illustrated state (the pedal 15 is not depressed), the winding core 34 is rotated accordingly, and the floor sheet 35 laid on the floor is rotated. are sequentially wound onto the core 34 via the upper surface of the front guide roll 32.

When winding up of the floor sheet 35 is not to be performed, such as after winding up of the floor sheet 35 is completed, the frame 1 can be pushed easily and easily by depressing the pedal 15 and releasing the pin clutch 13.

(Effects of the invention) This invented floor sheet winding machine is equipped with left and right large gears with a friction clutch and a pin clutch interposed on one side, which are driven by a winding transmission mechanism from wheels equipped with a differential device. The frame manually pushes the winding core, whose both ends are supported under pressure by groups of three trochanters on both the left and right sides, including at least one driving trochanter driven via the left and right large gear transmission mechanism of the intermediate shaft. Since it is rotated as the vehicle travels and the floor sheet is wound up one after another, even if one of the left or right wheels slips or does not rotate, the winding core will rotate normally and the floor sheet will be rolled up. It has outstanding effects such as being able to wind up the windings correctly, and when the traveling frame is traveling around a curve, the differential device is activated to ensure stable and smooth driving at all times.

Furthermore, when the floor sheet is not being rolled up, if the pin latch is released by pedal operation, the winding transmission mechanism from the wheels to the intermediate shaft is released from the large gear transmission mechanism and can rotate freely, making manual movement of the frame a significant effect. It has excellent effects such as being able to be easily operated without requiring any force.

[Brief explanation of the drawing]

The drawings show an embodiment of the invented floor sheet winding machine. Fig. 1 is an enlarged longitudinal sectional front view of the main part with some parts omitted, Fig. 2 is an enlarged longitudinal sectional right side view of the same, and Fig. 3 is a plan view. FIG. 4 is a front view, and FIG. 5 is a right side view. 1...Frame, 2...Axle, 3...Differential gear, 4...Wheel, 5...Chain wheel, 6...Intermediate shaft,
7, 7a...Large gear, 8...Clutch piece, 9...
... Chain wheel, 10 ... Friction clutch, 10a ... Friction plate, 11 ... Nut, 12 ... Spring, 13 ... Pin clutch, 13a ... Pin, 13b ... Pin hole, 14 ... Fitting hole, 15 ... ...Pedal, 16...Lever, 16a...Engagement part, 17...Pivot, 18...
...Clutch latch plate, 18a...Protuberance, 19...
Hinge, 20...Protrusion, 21...Adjustment, 22...Coil spring, 23...Passive shaft, 24...Small gear, 2
5... Drive trochanter, 26... Trochanter, 27... Support plate,
28... Rotating grip, 29... Spring, 30... Caster, 31... Push handle, 32... Guide roll, 33... Arm lever, 34... Winding core, 35... Floor sheet, 36... ...Feather key, A...Wrap transmission mechanism, B...Clutch shifting mechanism.

Claims (1)

[Scope of utility model registration request] Fixed left and right wheels equipped with a differential device,
The wheel is driven from the axle through an intermediate shaft on which left and right large gears each having a friction clutch and a pin clutch interposed on one side are mounted, and the left and right large gear transmission mechanism of the intermediate shaft. 3 each on both left and right sides of the frame containing at least one drive trochanter
It consists of a group of trochanters, a clutching mechanism that engages and disengages the winding transmission mechanism side and the large gear by engaging and disengaging the pin clutch by pedal operation, and a caster attached to the lower center rear surface of the frame.
A floor sheet characterized in that a winding core whose ends are supported under pressure by three groups of trochanters on each side is rotated as the frame moves by hand to sequentially wind up the floor sheet. Winding machine.