JPS6335052Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a road marking applicator that can apply marking paint to a road surface to mark straight lines, curved lines, or both.

(Prior art) In a conventional road marking applicator, front wheels are provided parallel to each other at a predetermined interval at the front of the machine, and horizontally rotatable free wheels are provided at the rear of the machine to allow the machine to move straight or turn around and apply it to the road surface. A device in which a straight line or a curved line is indicated is known, for example, as shown in Japanese Utility Model Application Laid-open No. 58-94706, but in this case, the direction of the free wheel can only be restricted when traveling straight, and when traveling on a curve, it is possible to Since the coating is free, when marking a certain arc, it is difficult to keep the direction of movement of the machine constant unless the operator is an experienced worker. If there is a defect that prevents the marking from being carried out easily, or if marking must be done continuously by switching straight and curved parts, such as letters (numbers) and symbols, many times in the same coating process, the marking It was extremely difficult to operate, resulting in a significant drop in work efficiency.

(Purpose) The present invention is a road surface marking system that can mechanically easily control the direction of free wheels in both straight and curved directions, allowing anyone to easily, accurately, and efficiently mark coatings. We provide coating machines.

(Structure) FIGS. 1 to 8 show an embodiment of the present invention. In FIGS. 1 and 2, reference numeral 1 denotes a fuselage body, and front wheels 2, 2 are mounted parallel to each other at a predetermined interval on the front part of the fuselage body. Reference numeral 3 denotes a free wheel which is attached to the body 1 so as to be horizontally rotatable about the vertical shaft 4 so as to be located approximately midway between the front wheels 2 , 2 at the rear of the body 1, and which is attached integrally with the free wheel 3. The disc-shaped rotary table 5 is provided with a straight movement regulating member 6 and a curved movement regulating member 7 , respectively. Although the straight movement regulating member 6 is shown as having a hole in this embodiment, it may be any member as long as it can regulate the direction of the free wheel 3. Further, as shown in the third diagram, the curve movement regulating member 7 is provided with stopper plates 7b, 7b which can be fixed with fixing bolts 7a at a predetermined position on an overhead line drawn at a predetermined radius from the center of the rotary table 5. Or, as shown in Figure 5, a stopper plate 7e is formed with an arc-shaped long hole 7c having a required radius from the center of the rotary table 5, and can be fixed at a required position of the long hole 7c with a fixing bolt 7d. , 7e, or a required number of recesses 7 with a required radius from the center of the rotary table 5, as shown in FIG.
f, or as shown in FIG. 7, tap holes 7g are provided at required intervals on the outer periphery of the rotary table 5, and pins 7h can be removably screwed into the tap holes 7g, or Various structures can be used, such as one in which a required number of holes 7i are provided at different radii from the center of the rotary table 5 as shown in the figure. Reference numeral 8 denotes a locking member provided on the body 1 side so as to be selectively lockable to the straight and curved movement regulating members 6 and 7 , and supported vertically and slidably on a guide member 9 provided on the body 1 . a rod member 8a, a support plate 8b fixed near the lower end of the rod member 8a, a support rod 8c loosely fitted to the support plate 8b so as to be movable up and down, and a set screw 8d of the support rod 8c. It consists of The support rod 8c may be slidable horizontally relative to the support plate 8b, as shown in FIG. 8, and may be fixed with a set screw 8d. Reference numeral 10 denotes an engagement protrusion provided at a predetermined position on the rod member 8a, which can be releasably engaged with an engagement notch 11 provided at a predetermined location on the body 1 . 12 is an engagement spring, 13 is a paint melting tank, 14 is a coating tank provided on one side of the machine body 1 , 15 is a hand handle,
16 is a bead tank, and 17 is a advancement guide rod.

(Function) When marking a straight line according to the present invention, as shown in the third figure, the support plate 8 at the lower end of the rod member 8a in the locking member 8
Loosen the set screw 8d, pull up the support rod 8c attached to the support plate 8b, and fix it to the support plate 8b with the set screw 8d. Then pull the rod member 8a upward to remove the engagement protrusion 10 of the rod member 8a from the engagement notch 11 of the fuselage 1 , and turn the rod member 8a approximately 90 degrees so that the engagement protrusion 10 is removed from the engagement notch 11. When the rod member 8a is not fitted, the rod member 8a moves downward due to the contraction force of the spring 12, and its lower portion fits into the straight movement regulating member (hole) 6 provided in the rotary table 5 of the free wheel 3. In such a case, the rotation of the rotary table 5 in the horizontal direction is restricted, and the traveling direction of the free wheel 3 integrated with the rotary table 5 is restricted to the straight direction. Therefore, if the aircraft 1 moves in this state, it will be marked as a straight line. will be held. Also, when marking curves, the fourth
As shown in the figure, the rod member 8a is pulled upward, its lower end is removed from the straight movement regulating member (hole) 6 , the rod member 8a is rotated to the position shown by the solid line, and the engaging protrusion 1
0 is fitted into the engagement notch 11 of the body 1 , the lower end of the rod member 8a is located above the rotary table 5, and the direction restriction of the free wheel 3 is released and becomes free, so the free wheel 3 rotates. A bending movement regulating member 7 provided on the table 5 (in Fig. 4, a stopper plate 7
b, 7b) is fixed at a position where the free wheel 3 can move along the same arc as the arc of the curve to be marked on the road surface, and the lower end of the support rod 8c of the rod member 8a is fixed to the turning movement regulating member 7 . The support rod 8c is lowered and fixed with a set screw 8d so that the support rod 8c is locked.
By locking the lower end of the fuselage 1 to the curve restriction member 7 and moving the fuselage 1 , a required curve can be marked. In addition, in this case, when the lower end of the support rod 8c is locked to the right side curve restriction member 7 in Fig. 4, the fuselage 1
If it is to the left, it will be clockwise, and if it is to the left, it will be counterclockwise. In addition, when marking characters (numbers), symbols, etc., if there are few straight sections and many curved sections, only the curved direction should be restricted, and the straight direction should be free . Advancement guide rod 1 protruding from the front
Marking can be performed by making the aircraft 1 go straight using 7 as an index.

(Effects) According to the present invention, by making it possible to restrict the direction of the free wheels attached to the aircraft body to the straight direction and the curved direction, anyone can easily and easily make the aircraft move straight and curve accurately. Although it is possible to accurately mark predetermined straight lines and curved lines, the present invention is particularly suitable for marking straight lines and curved lines in succession in the same coating process, such as letters (numbers) and symbols. By regulating only the direction of movement of curved parts, which are relatively difficult to apply, and leaving the straight direction free, marking of curved parts can be easily and accurately done by the function of the curved part regulating member. At the same time, when marking a straight section, the direction of the free wheel can be easily switched to the straight direction by loosening the contact force between the turning restriction member and the support rod of the engaging member, so that the aircraft can move straight. Since it is possible to mark straight parts, it is possible to quickly and efficiently mark characters, symbols, etc. that have many straight lines and curves.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a front view of the road marking applicator, Fig. 2 is a plan view thereof, Figs. 3-4 are perspective views of the main parts, and Figs. 5-8. FIG. 2 is a perspective view showing each example of a straight-ahead travel restriction member, a curved travel restriction member, and a locking member. 1 ...Vehicle body, 2, 2...Front wheel, 3...Swivel wheel,
4... Vertical axis, 5... Rotating table, 6 ... Straight traveling regulating member, 7 ... Curved traveling regulating member, 8 ... Locking member,
9... Guide member, 10... Engaging protrusion, 11...
Engagement notch, 12...Engagement spring.

Claims (1)

[Scope of utility model registration request] A road marking applicator comprising: front wheels provided parallel to each other at a predetermined interval at the front of the machine body; and a free wheel located approximately midway between the front wheels at the rear of the machine body, and provided so as to be horizontally rotatable on the machine body. A rotary table attached to the free wheel is provided with a straight traveling regulating member and a curved traveling regulating member whose mounting position can be changed based on the straight traveling regulating member, and a locking member that can be selectively engaged with the straight traveling regulating member and the curved traveling regulating member. A road marking applicator with a stopping member installed on the machine body to perform road marking.