Power sprayer and hose guide

Abstract

To provide a knapsack type power sprayer capable of preventing a hose from shifting in a longitudinal direction with respect to a hose guide.SOLUTION: A knapsack type power sprayer includes a belt-like member 80 that locks a discharge hose 20 to a hose guide 100. The hose guide 100 includes a pair of through holes 122 penetrating a peripheral wall 121. The pair of through holes 122 are formed at a predetermined position in the axial direction of the peripheral wall 121 having a cylindrical shape such that the through holes 122 are spaced from each other. The discharge hose 20 is locked to the peripheral wall 121 by the belt-like member 80 inserted to the pair of through holes 122.SELECTED DRAWING: Figure 8

Description

【Technical Field】 【0001】 The present disclosure relates to a power sprayer and a hose guide. 【Background Art】 【0002】 Patent Document 1 discloses a backpack power sprayer. This sprayer has a chemical liquid tank, a pump connected to the chemical liquid tank, and a hose connected to the pump. This hose is led out to the outside through a hose guide provided on a mount on which the chemical liquid tank is mounted. 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2014-54224 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 In the above-described backpack power sprayer, when an external force is applied to push the hose inward of the mount, and when an external force is applied to pull the hose out of the mount, it is conceivable that a displacement occurs in the longitudinal position of the hose with respect to the hose guide. In this case, a load is applied to the connection portion between the pump and the hose, and there is a risk that the connection portion may be damaged. 【0005】 An object of the present disclosure is to provide a power sprayer capable of suppressing displacement of the hose in the longitudinal direction with respect to the hose guide. 【Means for Solving the Problems】 【0006】 One example of a power sprayer includes a chemical tank (30) for storing chemical solution, a box-shaped frame (40) on which the chemical tank (30) is mounted, a hose guide (100) having a cylindrical peripheral wall (121) provided on the frame (40) so as to connect the inside and outside of the frame (40), a hose (20) inserted through the hose guide (100), and a strip-shaped member (80) for securing the hose (20) to the hose guide (100). The hose guide (100) has a pair of through holes (122) that penetrate the peripheral wall (121). The pair of through holes (122) are formed at predetermined axial positions on the cylindrical peripheral wall (121) and spaced apart from each other in the circumferential direction. The hose (20) is secured to the peripheral wall (121) by the strip-shaped member (80) inserted through the pair of through holes (122). 【0007】 In the above-described power sprayer, the hose (20) is inserted through the cylindrical peripheral wall (121) that constitutes the hose guide (100), so that the hose (20) can be protected from movement in all directions, centered on the axial direction, by the hose guide (100). Furthermore, the hose (20) is locked to the peripheral wall (121) of the hose guide (100) by a strip-shaped member (80) inserted through a pair of through holes (122) formed in the hose guide (100). As a result, even if an external force is applied to the hose (20) in the axial direction (longitudinal direction), displacement of the longitudinal position of the hose (20) relative to the hose guide (100) is suppressed. 【0008】 In one example, a pair of through holes (122) are formed such that, when viewed from the axial direction of the hose guide (100), the central angle falls within a range of 180° with respect to the center of the hose guide (100). The peripheral wall (121) of the hose guide (100) may have an elongated hole (125) formed at a position opposite to the region between the pair of through holes (122), and which is longer in the circumferential direction than the through holes (122). With this configuration, a strip-shaped member (80) inserted from the outside to the inside of the peripheral wall (121) through one of the through holes (122) can protrude to the outside of the peripheral wall (121) through the elongated hole (125). The strip-shaped member (80) that protrudes from the elongated hole (125) can be reoriented by a worker or the like, passed through the elongated hole (125) again, and inserted through the other through hole (122) from the inside to the outside of the peripheral wall (121). As described above, the presence of the elongated holes (125) allows the strip-shaped member (80) to be easily inserted through the pair of through holes (122). 【0009】 In one example, when viewed from the axial direction of the hose guide (100), the width of the elongated hole (125) in the direction perpendicular to the line connecting the midpoint of the pair of through holes (122) and the center of the hose guide (100) may be smaller than the width in which the pair of through holes (122) are formed. With this configuration, the strip-shaped member (80) can be fastened smoothly when securing the hose (20) with the strip-shaped member (80). 【0010】 An example hose guide (100) may have fastening parts (151) for fixing to a frame (40). The fastening parts (151) may be positioned such that they overlap at least partially with a pair of through holes (122) in the axial direction of the hose guide (100). In this configuration, the fixing position between the peripheral wall (121) and the hose (20) and the position of the fastening parts (151) are located relatively close together. Therefore, damage to the fastening parts (151) due to forces transmitted from the hose (20) to the hose guide (100) is suppressed. 【0011】 The peripheral wall (121) may have a stepped portion (121a1) projecting toward the axis at least at one end in the axial direction. The hose (20) may be in contact with the stepped portion (121a1) while it is locked to the peripheral wall (121) by the strip-shaped member (80). In this configuration, the hose (20) curved by the stepped portion (121a1) comes into contact with the stepped portion (121a1), thereby firmly locking the hose (20) and the peripheral wall (121). 【0012】 In one example, a hose guide is provided that is attached to a box-shaped frame (40) on which a chemical tank (30) is mounted, so as to connect the inside and outside of the frame (40). The hose guide has a cylindrical peripheral wall (121) through which a hose (20) is inserted, and a pair of through holes (122) that penetrate the peripheral wall (121). The pair of through holes (122) are formed at predetermined axial positions of the cylindrical peripheral wall (121) and spaced apart from each other in the circumferential direction. The hose (20) is secured to the peripheral wall (121) by a strip-shaped member (80) inserted through the pair of through holes (122). [Effects of the Invention] 【0013】 According to this disclosure, it is possible to provide a power sprayer that can suppress the longitudinal displacement of the hose relative to the hose guide. [Brief explanation of the drawing] 【0014】 [Figure 1] This is a rear view of an example of a backpack-type power sprayer. [Figure 2] This is a perspective view showing the inside of a frame that makes up an example of a backpack-type power sprayer. [Figure 3] This is an exploded perspective view showing an example of a mounting frame and hose guide. [Figure 4] This is a plan view showing an example of a hose guide. [Figure 5] This is a side view showing an example of a hose guide. [Figure 6] This is a cross-sectional view along the line VI-VI in Figure 5. [Figure 7]It is a cross-sectional view explaining the procedure for locking a hose to a hose guide of an example. [Figure 8] It is a cross-sectional view showing a state where a hose is locked to a hose guide of an example. 【Mode for Carrying Out the Invention】 【0015】 Hereinafter, a backpack power sprayer which is an example of a power sprayer having a hose guide will be described with reference to the drawings. In the drawings, an XYZ orthogonal coordinate system may be shown for reference. In the following description, unless otherwise specified, the terms up and down, front and back, and left and right represent directions based on an operator carrying the device. That is, among the devices, the surface facing the operator's back is referred to as the front surface. The vertical direction is along the Z direction, the front-back direction is along the X direction, and the left-right direction is along the Y direction. 【0016】 As shown in FIG. 1, the backpack power sprayer 1 has a working machine main body 10 carried by an operator, and includes a discharge hose 20 which is a discharge pipe for transmitting the chemical liquid from the working machine main body 10 to the operator's hand and spraying it from the spray nozzle 25a at the tip. In the drawing, the backpack strap for the operator to carry the working machine main body 10 is removed. 【0017】 The working machine main body 10 includes a chemical liquid tank 30, a gantry 40, and a hose guide 100. The chemical liquid tank 30 is a container for storing the chemical liquid. An example of the chemical liquid tank 30 includes a tank main body 31 having a liquid injection port 31a at the upper part, and a lid body 35 attached to the liquid injection port 31a. The chemical liquid stored in the chemical liquid tank 30 can be discharged to the discharge hose 20. 【0018】 The gantry 40 constitutes the lower part of the working machine main body 10 and supports the chemical liquid tank 30 from below. That is, the chemical liquid tank 30 is mounted on the upper part of the gantry 40. For example, the gantry 40 has a box shape. That is, the gantry 40, alone or together with other component members (as an example, the chemical liquid tank), defines a predetermined space. An example of the gantry 40 has a first bracket 41 including a bottom surface and a second bracket 51 including side surfaces. The first bracket 41 and the second bracket 51 are fitted to each other to constitute the box-shaped gantry 40 with an open upper part. 【0019】 FIG. 2 is a perspective view showing the inside of the gantry 40. The gantry 40 houses an electric pump 43, a battery 44, etc. in its inner space. The electric pump 43 is driven by the battery 44. The water inlet of the electric pump 43 is connected to the chemical liquid tank 30, and the discharge port of the electric pump 43 is connected to the discharge hose 20. The electric pump 43 discharges the chemical liquid supplied from the chemical liquid tank 30 to the discharge hose 20. The discharge hose 20 is led out to the outside of the gantry 40 through a hose guide 100 that communicates the inside and outside of the gantry 40. A spraying device 25 for spraying the chemical liquid is provided at the tip of the discharge hose 20. A spray nozzle 25a is provided at the tip of the spraying device 25. 【0020】 Figure 3 is an exploded perspective view showing the frame 40 and the hose guide 100. The frame 40 in the illustrated example has an opening 40a that connects the inside and outside. For example, the opening 40a is formed by combining a semicircular notch 45 formed on the lower edge of the first bracket 41 and a semicircular notch 55 formed on the upper edge of the second bracket 51. The hose guide 100 connects the inside and outside of the frame 40 by being placed in the opening 40a. The second bracket 51 has a fastening base 56 with bolt holes for fixing the hose guide 100. The second bracket also has a fitting groove 57a and a fitting projection 57b used for positioning the hose guide 100, etc. The fitting groove 57a is adjacent to the notch 55 and is aligned in the X direction. In the illustrated example, three fitting grooves 57a are spaced apart from each other. The fitting projections 57b are provided adjacent to the fitting groove 57a and along the X direction. In the illustrated example, three fitting projections 57b are arranged spaced apart from each other. The first bracket 41 also has positioning projections 47 that protrude from the inner surface around the notched portion 45. In the illustrated example, the positioning projections 47 have a pair of first projections 47a provided spaced apart from each other in the X direction, and a second projection 47b positioned outside the first projections 47a. 【0021】 Figure 4 is a plan view of the hose guide 100 as seen from above in the Z direction. Figure 5 is a side view of the hose guide 100 as seen from the X direction. Figure 6 is a cross-sectional view along the line VI-VI in Figure 5. The hose guide 100 has a first circumferential wall 110, a second circumferential wall 120, a third circumferential wall 130, and a flexible portion 140. The first circumferential wall 110, the second circumferential wall 120, the third circumferential wall 130, and the flexible portion 140 each have an annular shape that is continuous in the circumferential direction in at least a portion thereof, and the discharge hose 20 is inserted inside them. 【0022】 The first circumferential wall 110 constitutes one axial end of the hose guide 100. In the illustrated example, the first circumferential wall 110 is located inside the frame 40. In one example, the first circumferential wall 110 has an annular shape that widens toward one end of the hose guide 100. The second circumferential wall 120 is connected to the first circumferential wall 110 and extends from the first circumferential wall 110 toward the other end of the hose guide 100. In the illustrated example, the second circumferential wall 120 is located inside the frame 40. Details of the second circumferential wall 120 will be described later. 【0023】 The third circumferential wall 130 is connected to the second circumferential wall 120 and extends from the second circumferential wall 120 toward the other end of the hose guide 100. In the illustrated example, the third circumferential wall 130 is positioned in the opening 40a of the frame 40. The third circumferential wall 130 has a cylindrical main body portion 131 and a first projection 133 protruding from the main body portion 131. The first projection 133 extends along a plane that intersects (in this case is perpendicular) the axial direction of the hose guide 100. The first projection 133 has a first portion 133a and a second portion 133b. The first portion 133a constitutes the upper half of the first projection 133 above its vertical center and has a substantially rectangular plate shape with the same width as the outer diameter of the second circumferential wall 120. The second portion 133b constitutes the lower half of the first projection 133 and has a disc shape (annular) with the same outer diameter as the outer diameter of the second circumferential wall 120. 【0024】 The flexible portion 140 is connected to the third circumferential wall 130 and constitutes the other axial end (the end opposite to the first circumferential wall 110) of the hose guide 100. The flexible portion 140 has a cylindrical shape with slits 141 and can bend in any direction circumferentially. In one example, two slits 141 are provided at multiple axial positions. The circumferential positions of slits 141 provided at adjacent axial positions are staggered. The end of the flexible portion 140 widens towards the edge. 【0025】 The second circumferential wall 120 will now be described in more detail. The second circumferential wall 120 has a cylindrical circumferential wall 121 through which the discharge hose 20 is inserted, and a pair of through holes 122 that penetrate the circumferential wall 121. A second projection 123 is formed at the boundary between the circumferential wall 121 and the third circumferential wall 130, protruding from the circumferential wall 121. The second projection 123 extends along a plane that intersects (in this case is perpendicular) the axial direction of the hose guide 100. The second projection 123 has a shape similar to the first portion 133a of the first projection 133 provided on the third circumferential wall 130. The inner diameter of the circumferential wall 121 is larger than the inner diameter of the main body portion 131 of the third circumferential wall 130. That is, a stepped portion 121a1 is formed between the inner circumferential surface 121a of the circumferential wall 121 and the inner circumferential surface 131a of the main body portion 131 of the third circumferential wall 130 (see Figure 6). The stepped portion 121a1 protrudes toward the axis at one axial end of the peripheral wall 121. In one example, the stepped portion 121a1 may be the edge of the third peripheral wall 130, or it may be an annular surface extending along the XZ plane. 【0026】 The pair of through holes 122 are formed at predetermined axial positions on the cylindrical peripheral wall 121, spaced apart from each other in the circumferential direction. In one example, the pair of through holes 122 may be formed such that, when viewed from the axial direction of the hose guide 100, the central angle is within a range of 180° with respect to the center of the hose guide 100. In the illustrated example, the pair of through holes 122 are provided in the upper half of the second peripheral wall 120 in the vertical direction. The distance between the through holes 122 is not particularly limited, but as an example, it may be larger than the outer diameter of the discharge hose 20 through which it is inserted. 【0027】 The peripheral wall 121 has an elongated hole 125 formed at a position opposite to the region between the pair of through holes 122, such that it is longer in the circumferential direction than the through holes 122. For example, the circumferential length of the through holes 122 is slightly larger (e.g., twice or less) than the width of the strip-shaped member 80 that fastens the discharge hose 20, and the circumferential width of the elongated hole 125 is larger than the outer diameter of the discharge hose 20. As shown in Figure 6, when viewed from the axial direction of the hose guide 100, in the direction perpendicular to the line connecting the midpoint of the pair of through holes 122 and the center of the hose guide 100 (this is the Y direction in the illustrated example), the width L1 of the elongated hole 125 is smaller than the width L2 in which the pair of through holes 122 are formed. The width L2 in which the pair of through holes 122 are formed may be the distance between the outer ends of the through holes 122 in the Y direction. Also, the width L1 of the elongated hole 125 is larger than the distance L3 between the inner edges of the pair of through holes 122. 【0028】 The hose guide 100 has fastening portions 151 for fixing to the frame 40. The fastening portions 151 are positioned so as to overlap at least a portion with a pair of through holes 122 in the axial direction (Y direction) of the hose guide 100. In the illustrated example, the center position of the through holes 122 and the center position of the fastening portions 151 coincide in the Y direction. A pair of fastening portions 151 are provided on the outer circumference of the second circumferential wall 120. The pair of fastening portions 151 are plate-shaped so as to protrude horizontally from the center position of the second circumferential wall 120 in the Z direction. A hole 151a is provided in the center of the fastening portion 151, penetrating the fastening portion 151 in the thickness direction of the plate. The fastening portion 151 is fastened to a fastening base 56 provided on the frame 40 by a bolt 58 (fastening member) inserted through the hole 151a (see Figure 3). 【0029】 Furthermore, when the hose guide 100 is fixed to the frame 40, the second portion 133b of the first projection 133 of the hose guide 100 may be fitted into the fitting groove 57a. A fitting projection 57b may be fitted between the second portion 133b and the second peripheral wall 120. The upper ends of the first portion 133a and the second projection 123 of the first projection 133 may abut against the first projection 47a of the positioning projection 47 protruding from the inner surface of the first bracket 41. In addition, the left and right edges of the first portion 133a and the second projection 123 of the first projection 133 may abut against the second projection 47b of the positioning projection 47. 【0030】 The discharge hose 20 is secured to the hose guide 100 (circumferential wall 121) by a strip-shaped member 80 inserted through a pair of through holes 122. For example, the strip-shaped member 80 has a strip portion 81 extending in one direction, a plurality of locking claws 81a formed evenly along the length of the strip portion 81, and an insertion hole 83 formed at the base end of the strip portion 81 for inserting the tip of the strip portion 81 (see Figure 8). The insertion hole 83 has a restricting projection 83a that engages with the locking claws 81a to restrict the withdrawal of the inserted strip portion 81. In one example, the strip-shaped member 80 may be a so-called cable tie. 【0031】 An example of a procedure for fastening the discharge hose 20 will be described. Figure 7 is a cross-sectional view illustrating the procedure for securing the discharge hose 20 to the hose guide 100. Figure 8 is a cross-sectional view showing the state in which the discharge hose 20 is secured to the hose guide 100. Note that in Figure 7, the strip-shaped member 80 is depicted in a simplified manner. In this example method, first, the tip of the strip-shaped member 80 is inserted through one of the through holes 122 from the outside of the second peripheral wall 120. Next, the tip of the strip-shaped member 80 is made to protrude to the outside of the second peripheral wall 120 through the elongated hole 125. Next, the strip-shaped member 80 is bent and the tip of the strip-shaped member 80 is inserted again into the inside of the second peripheral wall 120 through the elongated hole. Next, the tip of the strip-shaped member 80 is inserted through the other through hole 122 from the inside of the second peripheral wall 120. In this state, the strip-shaped member 80, through which the pair of through holes 122 are inserted, can take on a substantially ring shape inside the second circumferential wall 120. Subsequently, the discharge hose 20 is inserted into the hose guide 100 so that the discharge hose 20 is inserted inside the substantially ring-shaped strip-shaped member 80 (state shown in Figure 7). Subsequently, the discharge hose 20 is locked to the second circumferential wall 120 by the fastening operation of the strip-shaped member 80. In this state, the outer surface of the discharge hose 20 is in contact with the boundary 121a2 (the inner edge of the stepped portion 121a1) between the inner circumferential surface 131a of the third circumferential wall 130 and the stepped portion 121a1. 【0032】 As described above, the backpack-type power sprayer 1 comprises a chemical tank 30 for storing chemical solution, a box-shaped stand 40 on which the chemical tank 30 is mounted, a hose guide 100 having a cylindrical peripheral wall 121 provided on the stand 40 so as to connect the inside and outside of the stand 40, a discharge hose 20 inserted through the hose guide 100, and a strip-shaped member 80 for securing the discharge hose 20 to the hose guide 100. The hose guide 100 has a pair of through holes 122 that penetrate the peripheral wall 121. The pair of through holes 122 are formed spaced apart from each other in the circumferential direction at predetermined axial positions of the cylindrical peripheral wall 121. The discharge hose 20 is secured to the peripheral wall 121 by the strip-shaped member 80 inserted through the pair of through holes 122. 【0033】 In the backpack-type power sprayer described above, the discharge hose 20 is inserted through the cylindrical peripheral wall 121 that constitutes the hose guide 100, so the hose guide 100 can protect the discharge hose 20 from movement in all directions, centered on the axial direction. Furthermore, the discharge hose 20 is locked to the peripheral wall 121 of the hose guide 100 by a strip-shaped member 80 inserted through a pair of through holes 122 formed in the hose guide 100. As a result, even if an external force is applied to the discharge hose 20 in the longitudinal direction in the axial direction, displacement of the discharge hose 20 in the longitudinal direction relative to the hose guide 100 is suppressed. 【0034】 In one example, a pair of through holes 122 are formed such that, when viewed from the axial direction of the hose guide 100, their central angle falls within a range of 180° with respect to the center of the hose guide 100. The peripheral wall 121 of the hose guide 100 may have an elongated hole 125 formed opposite the region between the pair of through holes 122, and which is longer in the circumferential direction than the through holes 122. With this configuration, a strip-shaped member 80 inserted from the outside to the inside of the peripheral wall 121 through one of the through holes 122 can protrude to the outside of the peripheral wall 121 through the elongated hole 125. The strip-shaped member 80 that protrudes from the elongated hole 125 can be reoriented by a worker or the like, passed through the elongated hole 125 again, and inserted into the other through hole 122 from the inside to the outside of the peripheral wall 121. In this way, the provision of the elongated hole 125 allows the strip-shaped member 80 to be easily inserted into the pair of through holes 122. 【0035】 In one example, when viewed from the axial direction of the hose guide 100, the width of the elongated hole 125 in the direction perpendicular to the line connecting the midpoint of the pair of through holes 122 and the center of the hose guide 100 may be smaller than the width in which the pair of through holes 122 are formed. With this configuration, the strip-shaped member 80 can be fastened smoothly when securing the discharge hose 20 with the strip-shaped member 80. 【0036】 One example of a hose guide 100 may have fastening portions 151 for fixing to a frame 40. The fastening portions 151 may be positioned such that they overlap at least partially with a pair of through holes 122 in the axial direction of the hose guide 100. In this configuration, the fixing position between the peripheral wall 121 and the discharge hose 20 and the position of the fastening portions 151 are located relatively close together. Therefore, damage to the fastening portions 151 due to forces transmitted from the discharge hose 20 to the hose guide 100 is suppressed. 【0037】 In one example, the peripheral wall 121 may have a stepped portion 121a1 projecting toward the axis at at least one axial end. The discharge hose 20 may be in contact with the stepped portion 121a1 while locked to the peripheral wall 121 by the strip-shaped member 80. In this configuration, the discharge hose 20, which is curved by the stepped portion 121a1, comes into contact with the stepped portion 121a1, thereby firmly locking the discharge hose 20 and the peripheral wall 121. 【0038】 Although embodiments have been described in detail above, this disclosure is not limited to the embodiments described above. 【0039】 For example, a cylindrical hose guide 100 has been illustrated, but the hose guide does not necessarily have to guide the entire circumference of the hose. For example, the hose guide may have a partial slit, such as a U-shape when viewed from the axial direction of the hose. Even in this case, the hose can be secured to the hose guide by providing a pair of through holes 122, as in the present disclosure. 【0040】 The form of this disclosure may be shown as follows: [1] A chemical solution tank (30) for storing the chemical solution, A box-shaped frame (40) on which the aforementioned chemical tank (30) is mounted, A hose guide (100) having a cylindrical peripheral wall (121) provided on the frame (40) so as to communicate the inside and outside of the frame (40), A hose (20) is inserted into the hose guide (100), The system includes a strip-shaped member (80) that secures the hose (20) to the hose guide (100), The hose guide (100) has a pair of through holes (122) that penetrate the peripheral wall (121), The pair of through holes (122) are formed at predetermined axial positions of the cylindrical peripheral wall (121) and spaced apart from each other in the circumferential direction. A power sprayer in which the hose (20) is secured to the peripheral wall (121) by the strip-shaped member (80) inserted through the pair of through holes (122). [2] The pair of through holes (122) are formed such that, when viewed from the axial direction of the hose guide (100), the central angle falls within a range of 180° with respect to the center of the hose guide (100). The power sprayer according to [1], wherein the peripheral wall (121) of the hose guide (100) has an elongated hole (125) formed at a position opposite to the region between the pair of through holes (122) so as to be longer in the circumferential direction than the through holes (122). [3] The power sprayer according to [2], wherein, when viewed from the axial direction of the hose guide (100), the width of the elongated hole (125) in the direction perpendicular to the line connecting the midpoint of the pair of through holes (122) and the center of the hose guide (100) is smaller than the width in which the pair of through holes (122) are formed. [4] The hose guide (100) has a fastening portion (151) for fixing it to the frame (40), The fastening portion (151) is positioned in the axial direction of the hose guide (100) such that it overlaps with at least a portion of the pair of through holes (122) as described in any of [1] to [3], for the power sprayer according to any one of [1] to [3]. [5] The peripheral wall (121) has a stepped portion (121a1) that protrudes toward the axis at at least one end in the axial direction, The power sprayer according to any one of [1] to [4], wherein the hose (20) is in contact with the stepped portion (121a1) while being locked to the peripheral wall (121) by the strip-shaped member (80). [Explanation of symbols] 【0041】 1...Backpack-type power sprayer (power sprayer), 20...Discharge hose (hose), 30...Chemical tank, 40...Stand, 80...Strip-shaped member, 100...Hose guide, 121...Peripheral wall, 122...Through hole, 125...Slotted hole, 151...Fastening part.

Claims

[Claim 1] A chemical solution tank (30) for storing the chemical solution, A box-shaped frame (40) on which the aforementioned chemical tank (30) is mounted, A hose guide (100) having a cylindrical peripheral wall (121) provided on the frame (40) so as to connect the inside and outside of the frame (40), A hose (20) is inserted into the hose guide (100), The system includes a strip-shaped member (80) that secures the hose (20) to the hose guide (100), The hose guide (100) has a pair of through holes (122) that penetrate the peripheral wall (121), The pair of through holes (122) are formed at predetermined axial positions of the cylindrical peripheral wall (121) and spaced apart from each other in the circumferential direction. A power sprayer in which the hose (20) is secured to the peripheral wall (121) by the strip-shaped member (80) inserted through the pair of through holes (122). [Claim 2] The pair of through holes (122) are formed such that, when viewed from the axial direction of the hose guide (100), the central angle falls within a range of 180° with respect to the center of the hose guide (100). The power sprayer according to claim 1, wherein the peripheral wall (121) of the hose guide (100) has an elongated hole (125) formed at a position opposite to the region between the pair of through holes (122), such that it is longer in the circumferential direction than the through holes (122). [Claim 3] The power sprayer according to claim 2, wherein, when viewed from the axial direction of the hose guide (100), the width of the elongated hole (125) in a direction perpendicular to the line connecting the midpoint of the pair of through holes (122) and the center of the hose guide (100) is smaller than the width in which the pair of through holes (122) are formed. [Claim 4] The hose guide (100) has a fastening portion (151) for fixing it to the frame (40), The power sprayer according to claim 1, wherein the fastening portion (151) is positioned such that it overlaps with at least a portion of the pair of through holes (122) in the axial direction of the hose guide (100). [Claim 5] The peripheral wall (121) has a stepped portion (121a1) that protrudes toward the axis at at least one end in the axial direction, The power sprayer according to any one of claims 1 to 4, wherein the hose (20) is in contact with the stepped portion (121a1) while being locked to the peripheral wall (121) by the strip-shaped member (80). [Claim 6] A hose guide is attached to a box-shaped frame (40) on which a chemical tank (30) is mounted, so as to connect the inside and outside of the frame (40), A cylindrical peripheral wall (121) through which a hose (20) is inserted, It has a pair of through holes (122) that penetrate the peripheral wall (121), The pair of through holes (122) are formed at predetermined axial positions of the cylindrical peripheral wall (121) and spaced apart from each other in the circumferential direction. The hose (20) is secured to the peripheral wall (121) by a strip-shaped member (80) inserted through the pair of through holes (122), forming a hose guide.

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