JPS61164672A - Motored sprayer - Google Patents

Abstract

PURPOSE:To enhance the bonding strength in the vicinity of a central part difficult in screw clamping, by forming battery lid receivers to the connection part of left and right half body parts of the bottom surface of a two-splittable main body case, and engaging and mounting both side parts thereof so as to straddle a battery lid. CONSTITUTION:A recessed part 102 for receiving a battery is provided to the bottom surface side of a main body case consisting of two-splittable cases 1a, 1b and first and second battery lid receivers 111, 112 are respectively formed to the circumference of the recessed part 102 on the same plane as the main body case and respectively made two-splittable from the center in the same way as the main body case. If both sides of a battery lid 100 is slid to the internal side with respect to the battery receiving recessed part 102 and pushed in until an engaging piece 113 is engaged with a projection 103, the first battery lid receiver 111 is enclosed by both left and right side parts 123 of a first tongue part 121 and, at the same time, a second tongue part 122 is engaged with the second battery lid receiver 112 and two splittable cases are strongly bonded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric sprayer, and particularly to a structure for attaching and detaching a battery cover of a power source battery.

[Background of the invention]

Sprayers used for gardening and the like use a pump to send water or chemical solutions from a tank to a spraying section, where they are sprayed onto trees, flowers, etc. By the way, some of the main body cases of this type of sprayer are formed by molding the left and right halves separately due to manufacturing reasons, and then joining them together with bosses, etc., so they tend to loosen during long-term use. As a result, gaps are likely to occur at the joints between the left and right half-opening parts, and water and chemical solutions can enter the main body case through these gaps and adhere to terminal boards, etc. installed inside the case, corroding them. There was a problem. In particular, although the strength of the area near the center of the main body case is weak, it is difficult to tighten screws due to the contents such as pumps and motors due to the shape, and vibrations generated by these items The periphery of the case tends to tremble, causing other problems such as rattling.

[Summary of the invention]

The present invention has been made in consideration of the above-mentioned circumstances, and an object of the present invention is to provide a main body case formed by combining left and right half-rest parts,
Particularly, it is an object of the present invention to provide a sprayer that is separated into left and right parts near the center of the bottom surface to prevent a gap from forming at the joint between the left and right halves. For this reason, the present invention provides an electric sprayer in which a battery cover holder for the battery cover is formed at the joint portion of the left and right half-housing portions on the bottom surface substantially center side of the main body case formed by joining the left and right halves. The battery lid is fitted and fitted to both sides of the lid holder so as to straddle the battery lid. This configuration improves the bonding strength near the center, where it is difficult to secure with screws.Furthermore, since it is on the bottom side of the main body case, it is not exposed to external force, and the battery cover does not come off unnecessarily. This also makes the connection of two split cases more reliable.

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an electric sprayer according to the present invention,
2 is a main body case with an oval cross section, 2 is a tank detachably attached to the main body case 1, and a hose 8 is attached to the upper part.
A recess 2a is formed for storage. Reference numeral 12 denotes a grip portion formed in the upper part of the main body case 1 in a bridge shape. The main body case 1 is divided into left and right half parts 1a, which are divided along a line segment that equally divides the grip part 12 into two along its length.
1b are formed separately, and the two are connected by bosses 10 at four points apart from the central portion.

Inside the main body case 1 are a pump 3, a pump drive motor 4,
A power supply unit 5 and the like are housed therein, and when a switch operation body 6 is operated, a pump 3 is driven to suck up water and chemical liquid from the tank 2 through a suction hose 7, and then to a spray unit 9 through a soft water supply hose 8. feed. The spraying section 9 consists of a long tubular grip section 9a and a nozzle section 9b rotatably connected to the tip thereof.

Reference numeral 15 denotes a recess partially formed in the circumferential body surface of the grip portion 9a along its length.

The cross-sectional shape of the grip part 12 is approximately U-shaped, and the grip part 9a of the spray part 9 can be loosely fitted into the upper recessed part 14 of the grip part 12 so as to be freely removable.

As shown in FIG. 2, the switch operating body 6 has a substantially U-shaped cross section, and includes a bottom portion 6a and a side wall portion 6b.

It consists of 6c. A protrusion 61 is provided on the bottom surface of the bottom portion 6a, and the protrusion 61 has a pressing portion 6 extending forward.
2, and switch moderation pieces 63 and 63 extending rearward are provided in a protruding manner. The switch operation body 6 stores the pressing portion 62 and the switch moderation pieces 63, 63 inside the bottom of the double structure of the grip portion 12, and is slidably attached to the grip portion 12 along its length. will be placed. A convex portion 64 is formed in the width direction on the contact side of the pressing portion 62 to block moisture that has entered through the gap between the two divided cases 12a and 12b. Not only does it block the intrusion into the pressing part 6, but it also comes into contact with the convex part 65 formed on the inner wall of the grip part 12 when the switch is slid, so that a so-called squeezing effect can be achieved.
2.It has the effect of forcing the moisture accumulated on the top to flow downward.

Reference numeral 17 denotes an elongated hole portion formed along the length of the grip portion 12 at the front of the bottom of the grip portion 12, and the protrusion 61 is inserted into the elongated hole portion 17 so as to be freely retractable. 18° 18 is a notch formed on the side of the elongated hole 17 in the side wall portion 81.81 of the grip portion 12; This corresponds to the notches 18, 18 in the state shown in FIG. Grip part 1 in front of the pressing part 62
2, a variable contact piece 70 and a fixed contact piece 71 are arranged, and when the switch operation body 6 is slid forward, the variable contact piece 70 comes into contact with the fixed contact piece 71, and the drive circuit of the motor 4 is activated. is closed, the pump 3 starts operating, and the water and chemical solution in the tank 2 are sent to the spray section 9 and are sprayed from the nozzle section 9b at the tip thereof.

Cut grooves 13 are formed on both sides of the side walls 6b and 6c of the switch operation body 6. On the outer wall surface and upper surface of the side wall central portions 61b and 61c separated by the kerf 13, there are anti-slip portions 72 and 7 for fingertips when operating the switch operating body 6.
2,73°73 is formed. A non-slip portion 75 is also formed on the upper surface of the bottom portion 6a. These anti-slip parts 72, 72, 73, 73 and 75 serve as anti-slip parts when the switch operation body 6 is slid with the spray part 9 removed from the grip part 12. Further, the side wall side portions 62b, 62c separated by the cut groove 13 are slightly lower in height and thinner than the side wall center portions 61b, 61C, and the side wall center portion 61b 761G slides into the cutout portions 18, 18. The side wall portions 62b, 62c are slidably mounted inside the side wall portions 81, 81 of the grip portion 12. The side wall portions 62b and 62c are provided with some elasticity by the grooves 13, and a protrusion 19 protruding inward is provided on the upper portion thereof.

FIG. 3 shows a state in which the grip part 9a is attached to the switch operating body 6, and in this state, the recessed part 5 of the grip part 9a can be elastically attached to and detached from the protrusion 19 of the switch operating body 6. The spray part 9 is held in the switch operating body 6 by being fitted. That is, the switch operating body 6 also serves as a mounting section for the spray section 9. In this way, if the spray part 9 is held by the switch operating body 6 instead of being held by the grip part I2, the pressure F that acts laterally when the spray part 9 is attached will act on the switch operating body 6, Since it does not act on the grip portion 12, the pressure F causes the grip portion 12 to expand and separate to the left and right as explained along FIG.

12b, no gap is created between them. Further, as in this embodiment, the spray part 9 and the switch operating body 6 are connected to the recess 15 and the protrusion I.
If they are engaged by a coupling means such as 9 and 6 so that they can slide integrally in the operating direction of the switch operating body 6, the hand holding the grip part 12 can be moved as shown in FIG. The switch operation body 6 can be operated by sliding the spray part 9 in the above direction with a fingertip, and the grip part 1 can be operated in this manner.
0N-O of the switch operating body 6 with only one hand holding 2.
There is an advantage that water, chemical solutions, etc. can be sprayed while performing FF operation.

Reference numeral 16 designates a fingertip anti-slip portion formed on the peripheral surface of the grip portion 9a to facilitate the sliding operation of the spray portion 9.

The means for fitting the grip part 9a and the grip part 12 is not limited to the above-mentioned embodiment, but as shown in FIG.
It is also possible to form a plurality of concavo-convex strips 91, 92 around the entire circumference along the longitudinal direction, and to fit these concave-convex strips with a protrusion 14 formed on the switch operating body. In this case, although the grip portion 9a and the switch operating body 6 do not interlock, the grip portion 9a can be arbitrarily positioned in the circumferential direction due to the plurality of longitudinal uneven grooves 91 and 92, and storage performance is improved. Further, by selecting the mounting position of the grip portion 9a in the circumferential direction, the spray direction from the nozzle can be changed.

Reference numeral 20 denotes a cylindrical body for guiding the hose 8 out of the main body case I. Details thereof will be explained next with reference to FIGS. 7 to 10.

The cylindrical body 20 is formed by joining a pair of half bodies 20a, 20a. The half-tube 20a consists of a substantially half-tubular body 21 and a half-trumpet-shaped body 22 connected thereto. The wing portion 23 protruding along the side edge of the substantially semi-tubular body 21 has a rib 24 and a small hole 2.
5 is formed, each rib 24 is inserted into each small hole 25, and both halves 20a, 20a are integrally joined. The hose 8 is held near its end by the cylindrical body 20,
In order to prevent the hose 8 from being pulled out from the cylindrical body 20, several grooves 26 are formed on the inner wall surface of the semi-tubular body 21 in the circumferential direction. 27.27 is a semi-tubular body 21
It is a board that is hung vertically on the left and right walls of the building, and has some elasticity. On the outer wall surface of the plate body 27, 27, a rib 28°28 having a sawtooth-shaped cross section is provided to prevent the plate from being pulled out. Reference numeral 29 denotes a positioning protrusion protruding from the wall surface of the semi-tubular body 21 along its length, and numeral 30 denotes a fitting rib protruding from the inside of the trumpet-shaped body 22.

Reference numeral 31 denotes an opening formed at the joint between the left and right half-rest portions 1a and 1b, and fitting grooves 32 and 32 for fitting the rib 30 are formed on both sides of the opening. Further, four triangular protrusions 33 for locking the ribs 28 are formed slightly inward of the opening 31.

In order to connect the hose 8 to the discharge part 3a of the pump 3, as shown in FIG. The cylindrical body 20 is held in the hand and inserted into the opening 31. That is, by inserting the main body case l in a direction perpendicular to the joint line Q of the main body case and the joint line P of the cylindrical body 20, the main body case l can be connected not only to the coupling boss 10 but also to the fitting rib of the cylindrical body 20. The fitting force between the fitting groove 30 and the fitting groove 32 is also utilized. The discharge part 3a of the pump 3 is seen through the opening 31, and the hose 8 is forcibly inserted into the discharge part 3a until the rib 28 is locked with the protrusion 33 (see FIG. 9). (See).The wing portion 23 and protruding piece 29 serve as a guide portion when inserting the cylindrical body 20 into the opening 31, and also serve as a positioning portion for fixing the cylindrical body 20 in the opening 31 without wobbling. Particularly the wing part 23
is held by the protrusion 33 in the opening 31, so that the respective halves 20a, 20a of the cylindrical body 20 are more securely connected (see FIG. 8). In this way, the hose 8 is discharged. When inserted into the section 3a, the rib 28 is elastically engaged with the protrusion 33 due to the shrinkage of the wall thickness of the hose 8 made of a soft material and the elasticity of the plate 27. Due to the elastic restoring force of the hose 8, a force in the expanding direction acts on the cylindrical body 20, so that the rib 28 is reliably engaged with the protrusion 33.

Further, in this state, the uneven portion 26 on the inner wall of the semi-tubular body 21 bites into the outer surface of the hose 8 (see FIG. 10), and the hose 8 is firmly and elastically held between the discharge portion 3a and the cylindrical body 20.

Therefore, the position of the hose 8 is restricted by the cylindrical body 20 with respect to the hose removal direction, and even if an outward force F1 is applied to the hose 8, the fitting force between the hose 8 and the discharge portion 3a The above-mentioned position regulation has the effect of preventing the hose from being pulled out, so that the hose 8 does not easily fall off from the discharge portion 3a, and furthermore, the cylindrical body 20 does not rattle. Further, since the outer end of the cylindrical body 20 is a trumpet-shaped body 22, its tapered surface 22
The hose 8 can be freely bent along the line a (see the chain line in FIG. 10). That is, the cylindrical body 20 also serves as a guide portion for guiding the hose 8 out of the main body case l while freely bending it. In addition, it is best shown in FIG.
Since the fitting rib 30 is fitted across both, the bonding force of the main body case 1 becomes even stronger.

A battery cover 100 is formed on the wall surface of the main body cases la and 1b facing the tank 2, that is, on the bottom surface of the main body case, so that it can be slid on and removed from the main case 1, and its details are shown in FIGS. 11, 12, and 13. I will explain based on this.

A recess 102 for storing a battery is provided on the bottom side of the main case 1 consisting of two divided cases 1a and 1b, and a battery positioning piece 106 is provided in the recess 102 to prevent the battery from wobbling. It is formed. Reference numeral 101 denotes a hose holder that holds the soft hose 8, and extends integrally with the main body case 1, and serves as a screw connection point for the two halves of the main body case 1. Around the recess 102 for storing batteries, a first battery cover holder 111 and a second battery cover holder 112 are each formed integrally with the main body case 1, and like the main case, each is divided into two parts from the center. It is possible.

7 is a suction hose, and 109 is a joining part with the tank. This joining part is provided at a position slightly offset from the center of the main body case, so that the battery cover 100 can be seen outside when the tank 2 is rotated 90 degrees as shown by the chain line in FIG. It has become. Further, reference numerals 107, 131, and 132 are drain holes, which are for draining water that has entered the main body case 1 to the outside. Further, the convex portion 115 formed on the tank 2 side shown in FIG.
1 and the concave portion 105 approximately in the center of the adjacent standing wall 133
, 134 comes into contact with the tank when it is installed, and it is a moderation when it is installed in a dormitory.

A contact plate 125 is provided on the upper surface of the battery lid 100, and tapered flange portions 124 are formed near both ends of the contact plate 125 in the battery lid insertion direction. In addition, reinforcing lips 134 are formed vertically and horizontally on the back surface of the battery cover 100, and the battery cover 100 is provided on the main body case 1 side, which also serves as a non-slip during sliding operation.
Guide grooves 104 are formed to guide both sides of the battery cover, and protrusions 103 that correspond to the fitting pieces 113 on both sides of the battery cover are erected inside the guide grooves 104. This guide groove 104 is formed by a guide plate 110, and has a notch at its tip end 110a to improve the workability of storing the battery cover 100.

When attaching the battery cover 100 to the main body case l, first slide both sides of the battery cover inward from the guide groove 104,
When the battery 5 is pushed in until the fitting piece 113 and the protrusion 103 are fitted, the battery 5 comes into contact with the contact plate 125 while being gradually pushed into the flange 124 described above. When the battery cover is completely attached, the left and right sides 123 of the first tongue portion 121 are attached to the first battery receiver 111.
The second tongue portion 122 and the second battery cover holder 112 fit together at the same time as the second tongue portion 122 and the second battery cover holder 112 are held together, thereby further improving the fitting force and further improving the bonding force between the two divided cases la and 1b.

As shown in FIG. 13, the boss 10 is connected to both sides of the main body case l in order to avoid the pump 3 and motor 4, and the above-mentioned first battery receiver 111 and first tongue part 121 are connected at that position. It is located approximately in the center of both pumps 3 and 3, improving the bonding strength. Vibrations generated from the motor 4 and the like suppress the rattling of the two-part cases la and 1b.

As described above, according to the present invention, the pump, the pump drive motor, and the power supply battery are housed, and the battery cover of the battery cover is located at the junction of the left and right half-housing parts on the bottom center of the main body case, which is formed by joining the left and right half-hoof parts. An electric sprayer formed with a lid holder,
Since the battery lid is fitted to both sides of the battery lid holder 111, straddling the battery lid, it is possible to improve the bonding strength near the center of the main body case, where it is difficult to fasten screws. The battery cover is formed on the bottom of the main body case, and in order to prevent the battery cover, that is, the connecting means near the center of the two-part case, from coming off unnecessarily, the two-part case The bond strength is reliable and reliable.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view showing an embodiment of an electric sprayer according to the present invention, and FIGS. 2 to 13 are a partial perspective view, a plan view, and a sectional view showing the main parts thereof. 1... Main body case la, 1b... Left and right halves 3... Pump 4... Pump drive motor 5... Power supply battery 100... Battery cover 111... Battery cover holder.

Claims (1)

[Claims] At the junction of the left and right halves 1a and 1b on the bottom center side of the main body case 1, which houses the pump 3, the pump drive motor 4, and the power battery 5, and which is formed by joining the left and right halves 1a and 1b, An electric sprayer comprising a battery lid holder 111 of a battery lid 100, which is fitted to both sides of the battery lid holder 111 so as to straddle the battery lid 100.