JPH067041Y2 - Roller-rotating glass beads variable amount sprayer for road line construction machines - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is for a road line construction machine for spraying highly reflective glass beads on paint applied to increase the reflectance when constructing a road division line. The present invention relates to a roller rotation type glass bead amount variable spraying device.

(Prior Art) Generally, when constructing a road division line, a method of spraying glass beads immediately after applying a welding paint is performed. This is done in order to increase the reflectance by the glass beads scattered on the line and to make it easier for the driver to see the line at night or in the rain.

Conventionally, this glass bead sprinkling device is provided with a rotatable roller at the sprinkling opening at the lower end of the case that houses the glass beads, a groove is formed in this roller in the axial direction, and the rotation of this roller and the vehicle speed are sprockets, The spraying device is a device that keeps the spraying amount per unit length constant by interlocking via a chain or the like and adjusting the spraying amount of glass beads according to the vehicle speed.

On the other hand, as a spraying device of this kind, it was actually opened in 1983, No. 149.
In No. 406, a rotary drum is arranged at the lower end opening of the storage hopper, and a large number of protrusions are formed on the peripheral surface of the rotary drum.
It is disclosed that between the lower end of the storage hopper and the rotary drum, an opening adjustment plate having a rubber plate fixed is provided on the rotary drum side so that the rubber can be sprayed uniformly.

(Problems to be solved by the invention) By the way, in the conventional glass bead sprinkling device, in order to cope with the need to change the sprinkling amount specified by the road surface and the surrounding conditions, the wheel and the roller are used. A variable speed reducer was provided in the interlocking device provided on the rod, or the sprocket was replaced.

However, they can only be changed in stages, and they are expensive and have the drawback of very poor workability.

On the other hand, in Japanese Utility Model Publication No. 149406 (1983), a rubber plate is attached to the tip of the opening adjustment plate, and the rubber plate merely contacts the protrusion of the rotary drum. Depending on the size or amount of the sprayed material that directly hits, it causes resonance of the rubber plate, curling phenomenon, or reduction of the pressing force due to deformation of the rubber plate due to pressing for a long time, resulting in unstable spraying amount and not necessarily uniform spraying. There was a problem that I could not do.

(Means for Solving Problems) In view of the above problems of the present invention, it is intended to solve the problems. This means will be described with reference to the drawings corresponding to the examples. Glass beads (13) The case (20) for storing the glass beads (1
A roller (14) is rotatably provided so that 3) can be discharged, and a large number of grooves (14a) are formed on the outer periphery of the roller (14) in parallel with the axial direction, and the roller (14) has a plate-like shape reaching the roller (14). The elastic body (15) is fixed to the lower end of the case (20), and the elastic body (1
A pressing rod (16) for constantly pressing the roller (14) toward the center of the roller (14) is provided on the case (20) so that the pressure can be adjusted, and the amount of spray can be easily changed, and stable and uniform spraying can be performed. I am taking steps.

(Operation) Next, the operation of the present invention will be described. First, the handle (1
When 1) is gripped and the road line construction machine (1) is moved, welding paint flows out from the slitter (2) and is applied to the road surface. Immediately after that, the roller type glass bead amount variable spraying device (5) provided at the rear of the slitter (2) interlocks with the clutch box (7) via the arm (9) when the clutch lever (8) is pushed downward. To operate. That is, the roller (14) always rotates in proportion to the rotation of the front wheel (3), and the dispersion amount of the glass beads (13) discharged from the groove (14a) of the roller (14) changes depending on the vehicle speed. In addition, the elastic body (15) is constantly pressed by the pressing rod (16) in the groove (14a) of the roller (14) to prevent the elastic body (15).
Only a certain amount of glass beads (13) that have entered the one groove (14a) closed by the above are discharged. or,
If you want to change the amount of spraying, turn the wing nut (18) of the pressure rod (16) to change the spring pressure of the spring (17), so that the contact pressure between the plate-like elastic body (15) and the roller (14). change. In other words, if the contact pressure is increased, the elastic body (15) will move into the groove (14a) of the roller (14).
The amount of the glass beads (13) entering the groove (14) is small, and thus the amount of dispersion is small. On the other hand, if the contact pressure is weakened, the groove (14) of the elastic body (15)
The amount of bite into it is small, and therefore the amount of application is large.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. Figure 1,
In Fig. 2, (1) shows the whole road line construction machine,
(2) is a slitter for applying welding paint,
(3) is a front wheel, (4) is a rear wheel, (5) is a roller-rotating type glass bead amount variable connection connecting rod of the present invention,
(7) is a clutch box containing a clutch for interlocking the front wheel (3) with the connect rod (6) via a chain and a sprocket, (8) is a clutch lever,
(9) is an arm that interlocks with the clutch lever (8), (10)
Is a tank for storing glass beads (13), (11) is a handle, (12) is a hose for feeding the glass beads (13) from the tank (10) to the spraying device (5), and (14) is a case (20) described later. ) A roller provided at the lower end of the spray port (20a) and having a groove (14a) formed on the outer circumference. Further, in FIG. 3 and FIG. 4, the glass beads (13) (15) are rotated by the rotation of the roller (14) so that the spray port (20)
It is a plate-shaped elastic body fixed to the lower end of the case (20) that discharges from a), and a rubber plate such as cushion rubber having appropriate elasticity is used, and this length is the lower end of the case (20). To a length sufficient to reach the outer circumference of the roller (14). Reference numeral (16) is a crimping rod having a pressing piece (16a) provided on the tip of the case (20), and the crimping rod (16) has a tip extending to an elastic body (15) and a pressing piece provided on the tip. (16a) directly presses the elastic body (15) against the roller (14) at right angles to the central direction. (1
7) is a spring spring that constantly presses the elastic body (15) against the roller via the crimping rod (16), and (18) is a pressure adjustment of the elastic body (15) against the roller (14) via the spring spring (17). Wing nut for (19), the bolt that secures the elastic body (15) to the case (20), (20) is connected to the upper hose (12), and the glass beads (13)
Is a case for accommodating the, and has a spray port (20a) opened at the lower end.

(Effect of the Invention) As described above, the present invention has the spray port (20a) at the lower end of the case (20).
A roller (14) having a large number of grooves (14a) formed on the outer periphery thereof is provided, and a plate-like elastic body (15) reaching the roller (14) from the lower end of the case (20) is provided. ) Is the crimping rod (1
By pressing the roller (14) toward the center of the roller (6) at all times and adjusting the pressing force, the pressure rod (16)
If the pressure is set, the amount of glass beads (13) entering the groove (14a) is always constant accordingly, and therefore the amount of spraying per constant length of road surface becomes extremely uniform, and the pressure rod
The spray amount can be freely changed by changing the pressure of (16).
In addition, especially because the elastic body (15) is constantly pressed, the groove (1
Resonance of the elastic body (15) due to the change in the rotation speed of the roller (14) having 4a) or the blistering phenomenon of the elastic body (15) due to the change in the amount of the glass beads (13) trying to enter the groove (14a), or A decrease in pressing force due to deformation of the elastic body (15) due to pressing for a long period of time can be completely prevented, and uniform and stable spraying can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a road line construction machine, FIG. 2 is a bottom view, FIG. 3 is a side view with a partial cross section of the device, and FIG. 4 is a partially enlarged view of the device. It is a figure. (13) …… Glass beads, (14) …… Roller (14a) …… Groove, (15) …… Elastic body (16) …… Crimping rod, (20) …… Case (20a) …… Spray port

Claims (1)

[Scope of utility model registration request] 1. A glass spout (20a) at the lower end of a case (20) for accommodating the glass beads (13) is provided with one of the glass beads.
A roller (14) is rotatably provided so that (13) can be discharged, and a groove (14a) is formed on the outer periphery of the roller (14) in parallel with the axial direction and reaches the roller (14). Elastic body (1
While the 5) is fixed to the lower end of the case (20), the pressure rod (16) for constantly pressing the elastic body (15) in the direction of the center of the roller (14) is press-adjustable to the case (20). A roller rotating type glass bead amount variable spraying device for road line construction machines, characterized by being provided.