JP2013055980A - Drawing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drawing device allowing a worker carrying a tank and pump unit on the back to draw lines, by use of a nozzle arranged in a grip pipe gripped by the worker.SOLUTION: The drawing device includes a tank 1 for storing liquid medicine, a pump attached to the tank 1 for discharging the liquid medicine inside, shoulder strap members 3 and 3 for carrying the tank 1 on the back, the grip pipe 6 connected to a discharge passage of the pump with a flexible hose 5, and a nozzle 7 arranged at the tip of the grip pipe 6. A worker can draw a line alone.

Description

  The present invention relates to a drawing apparatus for drawing on an athletic field, a road, a floor, or the like.

  For example, Patent Documents 1 and 2 describe a drawing apparatus for drawing on an athletic field or on a road. The wire drawing device of Patent Document 1 is supported by a plurality of wheels and has a handle and a tank in which a liquid agent is stored, an electric pump that discharges the liquid agent in the tank, a power supply battery for the electric pump, and an electric motor A nozzle connected to a discharge path of the pump is mounted, and the nozzle is arranged downward on one side of the carriage, and is configured to spray from the nozzle and draw on the ground while manually moving the carriage.

  The wire drawing device of Patent Document 2 is supported by a plurality of wheels, and a nozzle communicating with a valve body in the tank is mounted between the wheels at a lower portion of a vertically long tank in which a liquid agent is accommodated. A lever for opening and closing the handle and the valve body is provided at the upper part of the tank, and the tank is manually moved to be naturally dropped from the nozzle and drawn to the ground.

JP-A-8-71201 JP 2009-207693 A

  However, in the pressure injection type drawing apparatus as in Patent Document 1, parts such as a tank, an electric pump, and a battery for power supply are mounted on the carriage, and the weight of the entire drawing apparatus increases. It is difficult to move manually, and when the drawing part is circular or curved, it is necessary to lift the handle side of the entire drawing device to perform the drawing work, which causes a heavy burden on the operator In addition, there is a problem that the number of parts is relatively large and the cost is high.

  In addition, in the natural drop type drawing device as in Patent Document 2, since the discharge amount from the nozzle with respect to the drawing length is larger than that in the pressure injection type, the running cost is increased, and the addition is increased. Since it is allowed to fall naturally without using pressure liquid, when paint is used, it is not possible to draw a uniform width, and there is a problem that unevenness occurs in the line width, and it is limited to drawing only with water There is a problem of being. In addition, with water-only drawing, there is a problem that it is not possible to draw on wet ground or lawn, and there are problems that the usage conditions are limited, and in the natural fall type, the discharge amount changes depending on the amount of residual liquid in the tank Therefore, there was a problem that it was not possible to draw a line at a constant concentration.

  The present invention has been made in view of such circumstances, and a main purpose is to use a tank and a pump as a unit, carry the unit by one worker, and place a nozzle on a gripping tube held by the worker. Accordingly, an object of the present invention is to provide a drawing apparatus that can be drawn by one worker.

  Another object is to provide a grounding ring on both sides of the nozzle of the grip tube that the operator grips, thereby reducing the burden on the operator and improving the stability of the nozzle. It is to provide a pulling device.

  Another purpose is to use a tank and a pump as a unit, and carry the unit with one worker on the back, holding the grip tube with the nozzle with one hand, and pumping with the other hand. It is in providing the drawing apparatus which can draw by one operator by setting it as the structure which operate | moves.

  The drawing apparatus according to the present invention includes a pump that discharges the liquid agent in a tank in which the liquid agent is accommodated, and a line quotation nozzle that injects the liquid agent discharged from the pump. The pump is disposed in the tank. A holding part for carrying the tank; and a holding pipe connected to a discharge path of the pump by a flexible hose, and the nozzle is arranged at a tip of the holding pipe. It is characterized by that.

  In the present invention, a single worker carries the tank in which the pump is mounted, and the worker grips the grip tube in which the nozzle is disposed at the tip, and the pump discharges the tank. Since the liquid agent can be drawn while being ejected from the nozzle, even a circular or curved line can be drawn easily and uniformly by a single operator, and the number of parts is relatively small. Can be lightweight and low cost.

Moreover, the drawing apparatus according to the present invention is characterized in that the grip tube has grounding rings on both sides of the nozzle.
In the present invention, the grip tube is supported by the grounding rings on both sides of the nozzle, and the burden on the operator gripping the grip tube can be reduced, and the stability of the nozzle can be improved. The drawing work by gripping the grip tube can be simplified.

  According to the present invention, there is provided a drawing apparatus comprising: a pump that discharges the liquid agent in a tank in which the liquid agent is stored; and a line quotation nozzle that injects the liquid agent discharged from the pump. It is a manual type driven by operation of an operation lever and is mounted on the tank. The tank has a shoulder member for carrying the tank by shoulder and the operation lever. A gripping tube connected to the discharge path by a flexible hose is provided, and the nozzle and the grounding ring are arranged at the tip of the gripping tube.

  In the present invention, a single worker carries a tank equipped with a pump, and the worker grips a gripping tube having a nozzle at the tip, and manually operates an operation lever. Since the liquid in the tank can be discharged with a pump and sprayed from the nozzle, the line can be drawn easily, even with a single operator, even with circular or curved lines. In addition, the number of parts can be relatively reduced, and the weight can be reduced and the cost can be reduced.

  According to the present invention, a pump is provided, and the pump and the tank are carried by a single worker and can be drawn by the worker. It can be easily drawn to a uniform width, the number of parts can be relatively reduced, and the weight can be reduced and the cost can be reduced.

  In addition, according to the present invention, the load on the operator can be reduced by the grounding rings arranged on both sides of the nozzle, and the stability of the nozzle can be improved. Work can be simplified.

  In addition, according to the present invention, the pump is provided, and the operator carries the pump and the tank on the back, holds the grip tube provided with the nozzle with one hand of the worker, and operates with the other hand. Since it can be drawn by a single operator by gripping the lever, it can be drawn easily and uniformly even with circular or curved lines, and the number of parts should be relatively small. Can be reduced in weight and cost.

It is a schematic diagram which shows the structure of the drawing apparatus which concerns on this invention. It is a rear view which shows the structure of the drawing apparatus which concerns on this invention. It is an enlarged side view which shows the structure of the nozzle side part of the drawing apparatus which concerns on this invention. It is a partially omitted enlarged rear view showing the configuration of the nozzle side portion of the drawing apparatus according to the present invention. The structure of the support rod arrange | positioned at the grounding wheel side of the drawing apparatus which concerns on this invention is shown, A is a top view and B is a front view.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.
1 is a schematic view showing the configuration of a drawing apparatus according to the present invention, FIG. 2 is a rear view showing the configuration of the drawing apparatus, FIG. 3 is an enlarged side view showing the configuration of a nozzle side portion of the drawing apparatus, and FIG. Is a partially omitted enlarged rear view showing the configuration of the nozzle side portion of the drawing device, FIG. 5 shows the configuration of a support rod arranged on the grounding wheel side of the drawing device, A is a plan view, and B is a front view. FIG.

  The drawing apparatus shown in the figure has a tank 1 in which a liquid agent such as water or paint is accommodated, a pump which is attached to the lower part of the tank 1 and discharges the liquid agent in the tank 1, and a backpack for carrying the tank 1. A member 3, an operating lever 4 mounted on a side of the tank 1 and driving the pump by manual operation, a gripping tube 6 connected to a discharge path of the pump by a flexible hose 5, and a tip of the gripping tube 6 A nozzle 7 attached to the section, and two grounding rings 8 disposed on both sides of the nozzle 7. The back member 3 constitutes a carrying part for carrying the tank 1 on which the pump is mounted.

  The tank 1 has a substantially cylindrical shape, and includes a tank body 11 having a pouring / discharging port at an upper portion thereof, and a lid 12 that is detachably attached to the pouring / discharging port. There is an appropriate lender 13. A first lateral hole 14 is opened on one side of the tank 1 and a second lateral hole 15 is opened on the other side. The first lateral hole 14 is inserted with the distal end (one side distal end) of the operation lever 4 having a substantially L shape, and the second lateral hole 15 is inserted with one end of the flexible hose 5. .

  The pump is in the form of a flexible disk, and a central part is attached in the tank 1 with a diaphragm that moves up and down in conjunction with the angular rotation of the operation lever 4 and holds the peripheral part of the diaphragm. A housing, and a suction / discharge valve body for sucking the liquid in the tank 1 into the housing by the operation of the diaphragm and preventing backflow into the tank 1 and generating pressurized liquid in the housing; The flexible hose 5 has one end communicating with a discharge passage that discharges the pressurized liquid in the housing.

  The back member 3 is composed of two belt members, and both ends are attached to the first and second holes 14 and 15 in the tank 1 at four positions spaced apart in the vertical and lateral directions, and the tank 1 is supported on the shoulder. It is configured to be able to.

  The operation lever 4 has a relatively long long lever portion 4a and a short lever portion 4b that is connected to the tip of the long lever portion 4a at a bent portion and is inserted into the first lateral hole 14, and the short lever portion 4b. Is pivotally attached to the outside of the housing so as to be angularly rotatable, and is interlocked with the central portion of the diaphragm via an interlocking mechanism, and the long lever portion 4a is angularly rotated up and down to move the diaphragm up and down. It is configured to let you.

  The grip tube 6 is made of a relatively long non-flexible tube, and is provided with a valve lever 61 for operating the open / close valve and the open / close valve on the base end side connected to the flexible hose 5, and a nozzle holding tube at the tip. 62 is connected, and the nozzle 7 is detachably attached to the tip of the nozzle holding tube 62. The nozzle holding tube 62 has a bent portion that bends in a direction crossing the axis of the gripping tube 6, and is attached to the tip of the nozzle holding tube 62 when the gripping tube 6 is gripped in an inclined state with respect to the ground. The nozzle 7 is configured to open downward.

  In the middle of the nozzle holding pipe 62, a rectangular bar-like support rod 63 is attached that is long in the lateral direction and supports the grounding rings 8, 8 at both ends. The support rod 63 is attached to the nozzle holding tube 62 at the center in the longitudinal direction, and a plurality of positioning recesses 63a are provided at both ends so as to be separated in the longitudinal direction.

  The nozzle 7 serves both as water injection for drawing with water and paint injection for drawing with paint, and is configured to inject at a predetermined injection angle. The nozzle 7 is attached to a nozzle holder 71 having a check valve 72, and the nozzle holder 71 is attached to the tip of the nozzle holding pipe 62 so as to be removable. The check valve 72 prevents the liquid remaining in the grip tube 6 from dripping from the nozzle 7 when the valve lever 61 of the grip tube 6 is in the closed position.

  The grounding wheels 8, 8 have a wheel and a shielding plate attached to one side of the wheel in the axial direction. The shielding plate regulates the spread of the liquid agent ejected from the nozzle 7, and a line formed by the ejected liquid agent. In order to set the width, it also serves as a shielding plate. The shielding plates are arranged on the inner surfaces facing each other, and the separation distance between the grounding wheels 8 and 8 is configured to be the line width. Arms 8a and 8a are coupled to both ends of the axle of the grounding wheel 8, and the arms 8a and 8a are attached to the support rod 63 so as to be slidable in the lateral direction, and correspond to the line width determined by the competition. The exact distance between the grounding wheels 8, 8 can be easily adjusted.

  The upper ends of the arms 8a, 8a have an inverted U-shape, and holes 8b, 8b are formed on both sides of the U-shape to be inserted into both ends of the support rod 63, and the tip is supported at the center portion of the U-shape. The male screws 9 are engaged with either one of the both-end positioning recesses 63a, 63a, and the U-shaped portions are fixed to the both ends of the support rod 63 by the male screws 9, 9. By loosening the screws 9, 9, the arms 8a, 8a are slid along the support rod 63, and the distance between the grounding wheels 8, 8 can be adjusted.

  The lower ends of the arms 8a, 8a are provided with a downward sloping string hooking recess 8d, and when drawn in a circle, the other end of the string body whose one end is locked to the center of the circular line is one arm. It is configured to be hooked on the string hooking recess 8d of 8a so that a circular line can be easily drawn. When drawn in the clockwise direction, the cord is hooked on the string hooking recess 8d of one arm 8a, and when drawn in the counterclockwise direction, the cord is hooked on the string hooking recess 8d of the other arm 8a.

  In the drawing apparatus configured as described above, a liquid agent such as water or paint is accommodated in the tank 1 in which the pump is mounted, and the tank 1 is carried on the back of the worker by the shoulder member 3. 1 and the pump are carried. The proximal end of the grip tube 6 is gripped by one hand of an operator carrying the tank 1, and the grounding ring 8 is grounded. In this grounded state, the nozzle 7 between the grounding rings 8 opens downward.

  An operator holding the tank 1 and holding the grip tube 6 grasps the operation lever 4 with the other hand, and rotates the operation lever 4 up and down to move the diaphragm of the pump up and down to move the inside of the tank 1. The liquid agent is sucked into the housing, and the generated pressurized liquid is pumped from the discharge path into the grip tube 6 through the flexible hose 5.

  When performing the drawing, the operator grasps the valve lever 61 of the gripping tube 6 to open the valve body, thereby injecting the liquid agent from the nozzle 7 between the grounding wheels 8 and 8 toward the ground, and then the grounding wheel. A suitable line can be drawn by rolling 8,8 and an operator walking. At this time, the spread of the liquid agent sprayed from the nozzle 7 is regulated by the shielding plates of the grounding wheels 8 and 8, and a line having a certain width can be drawn to set the line width. The line width can be changed by changing the separation distance.

  As described above, since the tank 1 and the pump are a unit, and the nozzle 7 is connected to the pump of this unit via the flexible hose 5 and the grip tube 6, the number of parts can be reduced and the size can be relatively small. It can be made lightweight. In addition, the operator carries the tank 1 and the pump unit on the back, holds the grip tube 6 on which the nozzle 7 is mounted with one hand of the worker, and operates the operation lever 4 with the other hand, so that the nozzle 7 is fixed. Since a single worker can draw a line while injecting a pressure liquid, the working efficiency is good, the amount of liquid with respect to the drawing length can be reduced, and the drawing cost can be reduced. Moreover, the exact space | interval between the grounding rings 8 and 8 can be easily adjusted corresponding to the line width determined by the competition.

  In the embodiment described above, the tank 1 and the pump unit can be carried on the back member 3, but the back member 3 is eliminated and the tank 1 is provided on the lid 12 of the tank 1. The carryer 13 may be used as a carrying section, and the tank 1 and the pump unit may be carried by holding the pusher 13, or the backpack member 3 and the pusher 13 may be provided. It is good also as a structure which can be selected and carried, and the structure for carrying is not specifically limited. In the case of a configuration in which the handle 13 is held and carried, the unit may be provided with a rolling wheel for grounding.

  In the embodiment described above, the pump is directly mounted on the tank 1, but the pump may be mounted indirectly.

  In the embodiment described above, the ground ring 8 is provided on both sides of the nozzle 7, but the ground ring 8 is not always necessary.

  In the embodiment described above, a pump having a diaphragm is used. However, a pump having a piston that reciprocates when the operation lever 4 is operated may be used. The pump may be driven by an engine, an electric motor, or the like. The structure of the pump is not particularly limited.

DESCRIPTION OF SYMBOLS 1 Tank 3 Back member 4 Operation lever 5 Flexible hose 6 Gripping pipe 7 Nozzle 8 Ground ring

Claims (3)

  In a drawing apparatus including a pump that discharges the liquid agent in a tank in which the liquid agent is stored and a line reference nozzle that injects the liquid agent discharged from the pump, the pump is attached to the tank and carries the tank. A drawing apparatus comprising: a carrying part for carrying out; and a gripping pipe connected to a discharge path of the pump by a flexible hose, and the nozzle is arranged at a tip part of the gripping pipe.   The drawing apparatus according to claim 1, wherein the grip tube has grounding rings on both sides of the nozzle.   In a drawing apparatus including a pump for discharging the liquid agent in a tank in which the liquid agent is stored and a line-quoting nozzle for injecting the liquid agent discharged from the pump, the pump is a manual type driven by operation of an operation lever. The tank has a shoulder member for shouldering and carrying the tank and the operation lever, and is connected to a discharge path of the pump by a flexible hose. A drawing apparatus comprising: a tube, wherein the nozzle and the grounding ring are arranged at a tip of the grip tube.

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