JP4119472B2 - Backpack-type powder and particulate matter spreader - Google Patents

Description

The present invention relates to a knapsack powder granules dispenser for spraying particulate material such as agricultural chemicals and fertilizers.

  The application of pesticides to remove pests that damage crops and to remove weeds on farmland, and the application of fertilizers to help grow crops are always carried out in agriculture. The spraying work of these pesticides and fertilizers varies from hand-working without using tools to using large-scale equipment with a power source.

  In one of the spraying tools used for the above-mentioned spraying work, pesticides and fertilizers to be sprayed are placed in a backpack-type storage unit, and discharged from a discharge pipe attached to the lower part of the storage unit for spraying. There is a form to do. This backpack type sprayer can be sprayed regardless of the size and shape of pesticide and fertilizer grains by changing the nozzle attached to the tip of the discharge pipe, and the structure is simple and easy to handle. It is used for.

  Conventional backpack-type spreaders include a storage unit that stores powdered granular materials such as agricultural chemicals and fertilizers and carries it on the back, and a discharge pipe that is attached to the lower part of the storage unit in a communicating state (see below). Patent Document 1).

  In this backpack-type spreader, the frame is composed of an outer frame that is bent in a complicated manner and one swingable leg that extends downward from a connecting member attached to the outer frame. A bag to be stored is disposed, and a pair of straps that are hung on both shoulders when carrying the storage portion on the back are attached to the outer frame.

In the above-mentioned carry-type spreader, if you carry a storage part that contains agrochemicals, fertilizers, etc., the leg protruding backward will be only one rod-like member, and even if you walk in the field with a lot of crops, you will not be able to walk The possibility of damaging the crops or the crops becomes very low, so that the spraying operation of the granular materials can be smoothly proceeded.
Japanese Utility Model Publication No. 61-175926

  By the way, in said backpack type | formula spreader, it is necessary to process an outer frame by bending a metal rod-shaped member intricately, and processing cost increases. Therefore, the inventor has sought to configure the outer frame by combining a plurality of members having a simple shape. However, when pesticides, fertilizers, etc. are stored in the storage section, a very large force acts on the joints of multiple members, so if sufficient strength is not given to such joints, the outer frame will be sufficient The problem that it was not possible to secure the durability was revealed.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a shoulder-type granular material disperser that has a low processing cost and can ensure sufficient durability for the outer frame. Yes.

As a means for solving the above-mentioned problems, a shoulder-powder-type granular material spreader having the following structure is employed.
That is, the shoulder-type powder and granular material spreader of the present invention is spaced substantially parallel to the first frame that is U-shaped in plan view by linking a connecting member between the base ends of a pair of struts spaced substantially parallel to each other. A connecting member is installed between the base ends of the pair of struts to form a U-shape in plan view, and a second frame in which each tip of the pair of struts is joined to each of the pair of struts of the first frame; A peripheral portion of the opening is fixed to each of the connecting member of the first frame and the connecting member of the second frame, and is attached to the bag body capable of storing the powder and granular material and in communication with the bottom of the bag body. A discharge pipe for discharging the powder and granular materials stored in the bag body to the outside; a pair of straps which are attached to the connecting member of the first frame and a pair of struts and hung on both shoulders of the operator; and the first frame A pair of struts and the second frame A joining member that joins each of the tips of the pair of struts, wherein the joining member includes a first cylindrical portion that is passed through the pair of struts of the first frame and a pair of the second frame. It consists of a second cylindrical part into which the tip of a column is inserted, a bracket connecting the first cylindrical part and the second cylindrical part, and the joining member includes the first cylindrical part, the second cylindrical part, Each of the brackets can be divided into two halves, and these two halves are fixed by screws screwed to both from a predetermined direction to form one half of the second cylindrical portion. A locking claw is formed on the bottom surface of the split body, and a locked portion to which the locking claw is locked is formed on the bottom surface of the other half-divided body forming the second cylindrical portion, and the second cylindrical portion When the tip of the support of the second frame is inserted into the locking claw, And, it is prevented from deformation in the direction away from the engaged portion by the tip.

In the backpack-type granular material spreader of the present invention, when the tip of the second frame is inserted into the second cylindrical portion, the second frame post penetrates the second cylindrical portion and the second frame post. It may be fixed by a screw.

  In the present invention, when agricultural chemicals, fertilizers, etc. are stored in the storage portion, a very large force is applied to the joint portion that joins each of the pair of struts of the first frame and each tip of the pair of struts of the second frame. Will work. Therefore, as described above, the joining portion can be divided into two by dividing each of the first cylindrical portion, the second cylindrical portion, and the rib into two, and these two halves are screwed from a predetermined direction. By fixing with screws, the two frames can be firmly joined. In addition, since the joint is composed of only two parts, the manufacturing cost can be reduced.

According to knapsack powder granules dispenser of the present invention, the processing cost is inexpensive, and it is possible to ensure sufficient durability to the outer frame.

  1st thru | or FIG. 5 demonstrates and demonstrates 1st Embodiment of the backpack type | formula granular material disperser which concerns on this invention. 1 and 2, a backpack-type granular material spreader (hereinafter simply referred to as a “spreader”) stores a granular material such as agricultural chemicals and fertilizer and carries it on the back, and a lower portion of the storage unit 10. A cylindrical discharge pipe 11 attached in a communicating state with the discharge pipe 11 and a spray nozzle 12 attached to the tip of the discharge pipe 11. Among these, the accommodating part 10 consists of the outer frame 20 which can fold a leg, and the bag body 30 which is distribute | arranged inside the outer frame 20 and accommodates a granular material inside.

  The outer frame 20 includes a frame 21 (corresponding to the first frame and the first rod-like member of the present invention) 21 that is processed into a U-shape in plan view by bending two portions of a metal pipe, and the same metal pipe. A frame (corresponding to the second frame and the second rod-like member of the present invention) 22 that is bent at two places and processed into a U-shape in plan view is combined. The frame 21 has a pair of struts 21a and 21a spaced apart in parallel, and a connecting strut (corresponding to a connecting member of the present invention) 21b positioned between the base ends of the struts 21a and 21a. The frame 22 has substantially the same shape as the frame 21, and has a pair of support posts 22a and 22a, and a connection support post (corresponding to the connection member of the present invention) 22b positioned between the base ends of the support posts 22a and 22a. The frame 21 and the frame 22 have the same length of the connecting columns 21b and 22b, but the frame 21 is longer when the lengths of the column 21a and the column 22a are compared.

  These frames 21 and 22 are arranged such that the ends of the columns 22a and 22a of the frame 22 are close to the columns 21a and 21a of the frame 21, and the columns 22a form an acute angle with respect to the column 21a on either side. Yes. In detail, it arrange | positions so that the connection support | pillars 21b and 22b may be brought close, and may make about 60 degrees. The frame 22 is fixed to the frame 21 by a resin-made bonding member 50 in which the tip of the column 22a and the column 21a are divided into two (the structure of the bonding member 50 will be described later).

  A metal pipe member 23 serving as a leg in contact with the ground together with a pair of support pillars 21 a and 21 a of the frame 21 is attached to the connecting support pillar 22 b of the frame 22 via a resin hinge member 70 so as to be swingable. . The outer frame 20 is configured by grounding the lower ends of the support columns 21a and 21a and the lower end of the tube member 23 in a state where the support columns 21a and 21a of the frame 21 are set substantially vertically and the tube member 23 is opened in a direction away from the frame 21. Can stand on the ground.

  The bag body 30 is obtained by stitching a woven fabric that is resistant to tearing into a deep bottomed bag shape having an opening 31. The discharge pipe 11 is attached to a side surface near the bottom of the bag body 30 so as to communicate with the inside of the bag body 30 via a rubber bellows 32. A spray nozzle 12 having a shape that promotes the diffusion of the particulate matter is detachably attached to the tip of the discharge pipe 11. Further, an anti-sway portion 30a is sewn on the bottom of the bag body 30 so as to be hung on a reinforcing member 21c described later and prevent the bag body 30 from rolling in operation.

  The peripheral portions 31a and 31b of the opening 31 are opposed to each other and are attached to the connecting columns 21b and 22b, respectively, and the attached portions are sewn so that the peripheral portion 31a is folded around the connecting columns 21b. (The same applies to the peripheral portion 31b and the connecting column 22b). In addition, a lid cloth 33 for closing the opening 31 is sewn to the bag body 30 along the peripheral edge 31a.

  In addition, a pair of straps 35, 35 that are hung on both shoulders when the storage unit 10 is carried on the back are attached to the storage unit 10. These straps 35 are provided with a thick and soft shoulder rest 36 and a buckle 37 for adjusting the length. The upper ends of the straps 35 are sewn to the center of the connection column 21b of the frame 21 in a state of being folded around the connection column 21b.

  The lower ends of the straps 35 are respectively attached to the columns 21 a and 21 a of the frame 21. A loop portion 38 is formed at the lower end of the strap 35 by folding the strap itself in the surface direction and stitching it, and the tip of the support column 21a is passed through the loop portion 38. Further, a reinforcing member 21c is installed in the vicinity of the tips of the columns 21a and 21a that are spaced apart in parallel, and the loop portion 38 is hooked on the end of the reinforcing member 12c fixed to the column 21a. Further, a rubber cap 39 thicker than the inner diameter of the loop portion 38 is attached to the tip of the support column 21a, and the loop portion 38 is sandwiched between the reinforcing member 21c and the rubber cap 39 to prevent the support member 21a from falling off. ing.

  Since the reinforcing member 21c hits the back when the storage unit 10 is carried, the reinforcing member 21c is disposed at a position away from the back, and is fixed to the support columns 21a and 21a via a connecting part 21d made of resin. The connecting component 21d is fitted into both ends of the reinforcing member 21c and is screwed to the support column 21a. The rubber cap 39 serves not only to hold the strap 35 on the support column 21a but also to protect the ends of the support columns 21a and 21a and the tube member 23 when the outer frame is grounded and made to stand.

  Furthermore, between the support columns 21a and 12a, a belt-like backrest portion 40 that is in wide contact with the back and reduces the burden is stretched alongside the reinforcing member 21c. The backrest portion 40 is formed by passing a belt-like body 42 having loop portions 42a formed at both ends thereof on the upper and lower sides of a urethane mat member 41. The two loop portions 42a on one side are connected to one strut 21a. The two loop portions 42a on the other side are passed through the other strut 21a and fixed to the frame 21. Of the two belt-like bodies 42, the loop portions 42a at both ends of the belt-like body 42 provided on the upper side are passed through the positions above the reinforcing member 21c, and the loop portions 42a at both ends of the belt 42 provided below are reinforced. It is passed through a position below the member 21c and above the loop portion 38 of the strap 35. That is, the loop portion 38 of the strap 35 is passed through the support column 21a first, and the loop portion 42a of the belt-like body 42 is passed through later. If the two loop portions 38 and 42a are passed through the support column 21a in this order, the loop portion 38 of the strap 35 is in direct contact with the connecting part 21d so that both ends of the strap 35 are firmly fixed when the storage portion 10 is carried on the back. Is done. Further, when the storage portion 10 is carried on the back, the loop portion 38 of the strap 35 does not push up the loop portion 42a of the belt-like body 42, so that the mat member 41 is not displaced upward and always stays at a fixed position.

  As shown in FIGS. 3 and 4, the joining member 50 includes a cylindrical portion (first cylindrical portion) 51 that passes through the column 21 a of the frame 21 and a cylindrical portion into which the tip of the column 22 a of the frame 22 is inserted. (Second cylindrical portion) 52 and a bracket 53 that connects the cylindrical portion 51 and the cylindrical portion 52. Further, the joining member 50 is composed of two parts in which the cylindrical portion 51, the cylindrical portion 52, and the bracket 53 are all divided in half. Then, one half part 51a of the cylindrical part 51, one half part 52a of the cylindrical part 52, and one half part 53a of the bracket 53 are integrally formed to form a half body 50a. The other half part 51b of the part 51, the other half part 52b of the cylindrical part 52, and the other half part 53b of the bracket 53 are integrated to form a half body 50b. The joining member 50 combines these halves 50a and 50b so that the columns 21a and 21b are sandwiched from both sides, and the halves 50a and 50b are screwed to each other by screws 60a to 60d. The tip of the column 22a is fixed.

  A through hole 54 through which the screws 60a to 60d are passed is formed in each of the half parts 51a and 52a constituting the cylindrical parts 51 and 52 of the half body 50a, and a head of each screw is provided around the through hole 54. A bulging portion 54a is formed so as to conceal. In addition, a plurality of ribs 55 for reinforcing the bracket 53 are formed in the half part 53a constituting the bracket 53 of the half body 50a so as to form a row.

  Holes 56 into which the tips of the screws 60a to 60d are screwed are formed in the half parts 51b and 52b constituting the cylindrical parts 51 and 52 of the half body 50b. Since each hole 56 does not penetrate and is formed in a bag shape, a projection 56a is formed on the outer surface of each halved part 51b, 52b at a position corresponding to the tip of each screw. Although hidden in the drawing, a plurality of ribs 55 for reinforcing the bracket 53 are also formed in a row in the half component 53b constituting the bracket 53 of the half body 50b.

  Two joining members 50 are required to fix the tip of the support column 22a and the support column 21a. Both of the joining members 50 have a half body 50a in which a through hole 54 is formed as shown in FIG. Are arranged so that the front end of the support column 22a and the support column 21a are sandwiched between the half body 50b in which the hole 56 is formed and the bag body 30 is placed inside, respectively. Screws 60a to 60d are inserted. The screws 60 a to 60 d are inserted from the through holes 54, penetrate the holes formed in the frames 21 and 22, and are screwed into the holes 56. Thus, the frames 21 and 22 are sandwiched between the halves 50a and 50b.

  In the backpack-type granular material spreader configured as described above, the pair of support columns 21a, 21a and the pipe member 23 of the frame 21 serve as three legs that support the storage unit 10, but when carrying the spreader The leg protruding backward is only one tube member 23, and even if it walks in a field with a lot of crops, the possibility of getting in the way of walking or damaging the crops becomes very low. Therefore, spraying work of agricultural chemicals, fertilizers, etc. can proceed smoothly.

  Moreover, when agrochemicals, fertilizers, etc. are accommodated in the accommodating part 10, very big force will act on the joining member 50, but the joining member 50 strengthens both frames 21 and 22 by the above structures. It becomes possible to join. Furthermore, since the joining member 50 is composed of only two parts, the halves 50a and 50b, a reduction in manufacturing cost can be expected. In addition, since the screws 60a to 60d are inserted into the joining member 50 from the outside of the outer frame 20, the assembling work is simplified.

Next, a second embodiment of the backpack-type granular material spreader according to the present invention will be described with reference to FIGS. 6 and 7. In addition, the same code | symbol is attached | subjected to the component already demonstrated in the said 1st Embodiment, and description is abbreviate | omitted.
The joining member 50 according to the present embodiment has a shape in which the cylindrical portion 52 into which the tip of the support 22a of the frame 22 is inserted has a bottom. Of the two halved parts 52a and 52b constituting the cylindrical part 52, one halved part 52a includes a tongue piece protruding toward the other half part 52b along the bottom surface 52c of the cylindrical part 52. 57 is formed. A hook-like claw portion (corresponding to the locking claw of the present invention) 57 a is formed at the tip of the tongue piece 57 toward the outside of the cylindrical portion 52. Further, a claw hole (corresponding to a locked portion of the present invention) 58 into which the claw portion 57a is fitted is formed in the other half component 52b. In the present embodiment, the cylindrical portion 52 is configured to fix the tip of the frame 22 with one screw 60c.

  In the backpack-type granular material spreader configured as described above, the half body 50a and the half body 50b are combined, and the inner end of the support 22a of the frame 22 is inserted to a position where it reaches the bottom of the cylindrical portion 52. Then, when fixed with the screw 60c, the tip of the support post 22a comes into contact with the tongue piece 57 and restrains deformation of the tongue piece 57, so that the claw portion 57a does not come off from the claw hole 58. Therefore, the shape of the cylindrical portion 52 can be kept strong without screwing a plurality of screws. In addition, the efficiency of assembling work is increased by reducing one time for screwing.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the 1st Embodiment of this invention, Comprising: It is the whole perspective view of a backpack type | formula granular material spreader. It is a whole perspective view of a backpack type granular material spreader seen from a different direction from FIG. It is a disassembled perspective view of a joining member. It is sectional drawing of a joining member. It is state explanatory drawing which shows the process of screwing a screw | thread especially to a joining member among the assembly operations at the time of fixing two frames using a joining member. It is a figure which shows the 2nd Embodiment of this invention, Comprising: It is a disassembled perspective view of a joining member. It is sectional drawing of a joining member.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Storage part, 11 ... Release | release pipe, 20 ... Outer frame, 30 ... Bag body, 21 ... Frame (1st frame), 22 ... Frame (2nd frame), 50 ... Joining member, 23 ... Tube member (bar-shaped member) ), 51... Cylindrical part (first cylindrical part), 52... Cylindrical part (second cylindrical part), 53... Bracket, 50 a, 50 b.

Claims (2)

A first frame having a U-shape in a plan view by linking a connecting member between base ends of a pair of struts spaced substantially in parallel;
A connecting member is erected between the base ends of a pair of struts spaced substantially parallel to form a U-shape in plan view, and each tip of the pair of struts is joined to each of the pair of struts of the first frame. A second frame;
A bag body in which peripheral portions of the openings are respectively fixed to the connecting member of the first frame and the connecting member of the second frame, and a powder body can be accommodated,
A discharge pipe which is attached to the bottom of the bag body in a communicating state and discharges the powder and particulate matter stored in the bag body to the outside;
A pair of straps attached to the connecting member of the first frame and a pair of struts and hung on both shoulders of an operator;
A joining member that joins each of the pair of struts of the first frame and each tip of the pair of struts of the second frame;
The joining member includes a first cylindrical portion that is passed through a pair of struts of the first frame, a second cylindrical portion that is inserted with tips of a pair of struts of the second frame, and the first cylindrical portion. And a bracket connecting the second cylindrical portion,
Further, the joining member can be divided into two parts by dividing each of the first cylindrical part, the second cylindrical part, and the bracket into two parts, and these two half parts are screwed to both from a predetermined direction. Fixed by screws attached ,
A latching claw is formed on the bottom surface of one half of the second cylindrical portion, and the latching claw is latched on the bottom surface of the other half of the second cylindrical portion. Part is formed,
When the leading end of the support of the second frame is inserted into the second cylindrical portion, the locking claw is in contact with the leading end and is prevented from being deformed in the direction away from the locked portion by the leading end. A backpack-type granular material spreader. The column of the second frame is fixed by a screw that penetrates the column of the second cylindrical portion and the column of the second frame when the tip of the column is inserted into the cylinder of the second column. The shoulder-type granular material spreader as described.

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