Hose reel

Abstract

To provide a hose reel which can efficiently utilize force to take up a hose.SOLUTION: A hose reel comprises a drum support 11, a drum 12 which is rotatably supported by the drum support 11 and allows a hose to be wound therearound, a handle 13 which is rotatably supported by the drum support 11 and rotates the drum by being rotated, and a gear mechanism 20 for transmitting the rotation of the handle 13 to the drum 12. The gear mechanism 20 includes a non-circular first gear 21 directly connected to the handle 13, and a non-circular second gear 22 rotatably engaged with the first gear 21 to transmit the rotation of the first gear 21 to the drum 12 side.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present disclosure relates to a hose reel.

Background Art

[0002] Patent Document 1 discloses a hose reel. The handle of this hose reel is connected to the rotating shaft of the drum via a gear mechanism. By rotating the handle, the rotational force of the handle is transmitted to the rotating shaft via the gear mechanism, thereby rotating the rotating shaft and thus the drum. The gear mechanism consists of a first gear, a second gear, and a third gear. In addition, in the same publication, a state where the first gear, the second gear, and the third gear are spur gears is illustrated.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, there are angles at which it is easy to apply force to the handle of the hose reel and angles at which it is difficult to apply force when winding the hose. However, in the hose reel described in Patent Document 1, when winding the hose, the same force is required regardless of whether the angle is one at which it is easy to apply force to the handle or one at which it is difficult to apply force, so it is difficult to efficiently utilize the force.

[0005] Therefore, an object of the present disclosure is to provide a hose reel capable of efficiently utilizing force to wind the hose.

Means for Solving the Problems

[0006] To solve the above problems, a hose reel according to a first aspect of the present invention comprises a drum support, a drum rotatably supported on the drum support and on which a hose can be wound, a handle rotatably supported on the drum support and which rotates the drum by being rotated, and a gear mechanism that transmits the rotation of the handle to the drum, wherein the gear mechanism includes a non-circular first gear directly connected to the handle and a non-circular second gear that rotatably meshes with the first gear and transmits the rotation of the first gear to the drum side.

[0007] A second aspect of the present invention is a hose reel according to the first aspect, wherein the first gear and the second gear are elliptical gears, the rotation centers of the first gear and the second gear are eccentric in the direction of their major axes, and when the major axes of the first gear and the second gear are aligned in a straight line, the pitch circle of one gear that is further from the rotation center of the other gear meshes with the pitch circle of the other gear that is further from the rotation center of the other gear.

[0008] A third aspect of the present invention is a hose reel according to the second aspect, wherein the handle is rotatably supported on the drum support about a rotation axis in a direction intersecting the vertical direction, and when the handle is in a region where it moves from top to bottom when winding the hose, the pitch circle of the second gear that is shorter in the direction of the long axis from the rotation center engages with the first gear.

[0009] A fourth aspect of the present invention is a hose reel according to any of the first to third aspects, comprising a circular third gear integrated with the second gear to form a double gear, and a fourth gear meshing with the third gear and directly connected to the drum, wherein the third gear and the fourth gear have their respective center points as centers of rotation, and the rotation of the first gear is transmitted to the drum via the second gear, the third gear, and the fourth gear. [Effects of the Invention]

[0010] According to this disclosure, the hose can be wound up by efficiently utilizing force. [Brief explanation of the drawing]

[0011] [Figure 1] This is a side view of a hose reel according to one embodiment of the present disclosure, taken from a direction intersecting the axial direction. [Figure 2] Figure 1 is a schematic diagram illustrating the gear mechanism of the hose reel as viewed from the direction of arrow II. [Figure 3] This is an explanatory diagram, viewed from the axial direction of the hose reel, illustrating the mounting angle of the handle relative to the first gear. [Modes for carrying out the invention]

[0012] One embodiment of the present invention will be described below with reference to the drawings. In each figure, UP indicates upward. CL1 represents the rotation axis (center) of the drum, CL2 represents the rotation axis (center) of the handle, and CL3 represents the rotation axis (center) of the double gear.

[0013] Figure 1 is a side view of a hose reel 10 according to one embodiment of the present disclosure, taken from a direction intersecting the axial direction. Figure 2 is a schematic explanatory diagram of the gear mechanism 20 of the hose reel 10 of Figure 1, viewed from the direction of arrow II. Note that the gears are shown in a simplified manner in Figure 2.

[0014] As shown in Figure 1, the hose reel 10 according to this embodiment is for storing the hose 1 in a wound-up state when not in use. When using the hose 1, the user can pull out the hose 1 from the hose reel 10 to the desired length.

[0015] The hose reel 10 comprises a drum support 11, a drum 12 rotatably supported by the drum support 11, a handle 13 rotatably supported by the drum support 11 and which rotates the drum 12 when rotated, and a gear mechanism 20 that transmits the rotation of the handle 13 to the drum 12. The hose reel 10 may also have other components besides the drum support 11, drum 12, handle 13, and gear mechanism 20.

[0016] The drum support 11 is a member that rotatably supports the drum 12 and defines the space 14 in which the drum 12 is placed. In this embodiment, the drum support 11 is formed in a frame shape and defines the space 14 inside it. The drum support 11 has a pair of drum support parts 15a and 15b that support the drum 12. The drum support parts 15a and 15b are arranged on both sides in a direction that intersects the vertical direction of the space 14 in which the drum 12 is placed (the axial direction of the rotation axis CL1 of the drum 12). In this embodiment, the drum support parts 15a and 15b are formed in a plate shape. The drum support parts 15a and 15b each have a shaft insertion hole 16 that allows the insertion of the drum shaft 12a of the drum 12, which will be described later. The drum support parts 15a and 15b rotatably support the drum shaft 12a that is inserted through the shaft insertion hole 16. One end of the hose 2, which is connected to the water source, is fixed around the shaft insertion hole 16 on the outer surface of the drum support portion 15b (the surface opposite to the space 14). In the following description, the direction approaching the space 14 of the drum support 11 along the axial direction of the rotation axis CL1 is referred to as the "inside," and the direction moving away from the space 14 is referred to as the "outside."

[0017] The drum 12 is a component for winding the hose 1 when storing the hose 1, and has a drum shaft 12a that is rotatably supported by drum support portions 15a and 15b of the drum support 11. The drum shaft 12a extends in a direction intersecting the vertical direction and is rotatable about a rotation axis CL1. That is, the drum 12 is rotatable about the rotation axis CL1 of the drum shaft 12a. The drum 12 is formed so that the hose 1 can be wound around it. The drum shaft 12a is provided with a hose fixing portion (not shown) for fixing one end of the hose 1. The hose 1 is wound around the drum 12 with one end fixed to the hose fixing portion of the drum 12.

[0018] In this embodiment, the drum shaft 12a of the drum 12 is formed in a cylindrical shape that divides the water flow path inside. One end of the drum shaft 12a (the right end in Figure 1) is rotatably supported by the drum support part 15b, allowing it to rotate relative to the hose 2 outside the drum support part 15b. The flow path inside the drum shaft 12a communicates with the flow path inside the hose 2 outside the drum support part 15b. As a result, even if the drum 12 rotates relative to the drum support 11, water from the water source can flow to the hose 1 via the hose 2 and the hose fixing part of the drum shaft 12a.

[0019] The handle 13 is a component that the user grasps by hand to rotate the drum 12 when storing the hose 1, and is rotatably supported on the drum support part 15a with respect to a rotation axis CL2 that is different from the rotation axis CL1 of the drum 12. The rotation axis CL2 of the handle 13 is a rotation axis parallel to the rotation axis CL1, and in this embodiment, it is located above the rotation axis CL1 of the drum 12. The rotation of the handle 13 is transmitted to the drum 12 via the gear mechanism 20. The configuration of the handle 13 will be described later.

[0020] As shown in FIGS. 1 and 2, the gear mechanism 20 is a mechanism for transmitting the rotation of the handle 13 (sometimes referred to as "rotational force") to the drum 12. It has a plurality of gears and is arranged outside the drum support portion 15a (on the side opposite to the space 14). The gear mechanism 20 of the present embodiment has four gears 21, 22, 23, and 24. By rotating the handle 13, the rotational force of the handle 13 is transmitted to the drum shaft 12a via the gear mechanism 20, and the drum 12 can be rotated.

[0021] The four gears 21, 22, 23, and 24 of the gear mechanism 20 are provided in the order of the first gear 21, the second gear 22, the third gear 23, and the fourth gear 24 in the order of the force input path from the handle 13 side to the drum 12 side. The four gears 21, 22, 23, and 24 are rotatably attached to the drum support portion 15a. Note that the second gear 22 and the third gear 23 constitute a double gear 25 integrated with each other.

[0022] The first gear 21 is a gear directly connected to the handle 13 and is rotatably supported by the drum support portion 15a via a gear shaft 26 centered on the rotation axis CL2. That is, the first gear 21 is rotatable about the rotation axis CL2. The handle 13 is fixed to the first gear 21, and the rotational force from the handle 13 is directly input. Note that "directly connected" means being connected without passing through other gears.

[0023] The first gear 21 is a non-circular gear (elliptical gear) formed in an elliptical shape. The rotation center (rotation axis CL2) of the first gear 21 is eccentric in the major axis direction from the center of the first gear 21 (the intersection of the minor axis x1 and the major axis y1).

[0024] The second gear 22 is a non-circular gear that forms a double gear 25 integrated with the third gear 23, and is rotatably supported on the drum support 15a via a gear shaft 27 centered on a rotation axis CL3 that is different from both the rotation axis CL1 of the drum 12 and the rotation axis CL2 of the handle 13. That is, the second gear 22 is rotatable about the rotation axis CL3, and when the second gear 22 rotates, the third gear 23 that constitutes the double gear 25 also rotates about the rotation axis CL3. The second gear 22 is rotatably meshed with the first gear 21 and transmits the rotational force from the first gear 21 to the drum 12 side via the third gear 23 and the fourth gear 24. The rotation axis CL3 of the double gear 25 is a rotation axis parallel to the rotation axes CL1 and CL2, and in this embodiment, it is located above the rotation axis CL1 of the drum 12 and below the rotation axis CL2 of the handle 13.

[0025] The second gear 22 is a non-circular gear (elliptical gear) formed in an elliptical shape, the same shape and size as the first gear 21. The rotation center (rotation axis CL3) of the second gear 22 is eccentric in the direction of the major axis from the center of the second gear 22 (the intersection of the minor axis x2 and the major axis y2). The number of teeth of the second gear 22 is set to be the same as that of the first gear 21. That is, when the first gear 21 rotates once, the second gear 22 also rotates once.

[0026] As shown in Figure 2, when the major axes y1 and y2 of the first gear 21 and the second gear 22 are aligned in a straight line, the pitch circle of the first gear 21 that is further from the rotation center (rotation axis CL2) of the first gear 21 meshes with the pitch circle of the second gear 22 that is further from the rotation center (rotation axis CL3) of the second gear 22. Furthermore, when the gears are rotated half a turn (180 degrees) from this state (as shown in Figure 2), and the major axes y1 and y2 of the first gear 21 and the second gear 22 are aligned in a straight line again, the pitch circle of the first gear 21 that is further from the rotation center (rotation axis CL2) of the first gear 21 meshes with the pitch circle of the second gear 22 that is further from the rotation center (rotation axis CL3) of the second gear 22. In other words, the first gear 21 and the second gear 22 are arranged such that the pitch circle of one gear that is located at a longer distance along the long axis from the rotation center of the other gear meshes with the pitch circle of the other gear that is located at a shorter distance along the long axis from the rotation center of the other gear.

[0027] The third gear 23 is a gear that constitutes a double gear 25 integrated with the second gear 22, and is rotatably supported on the drum support portion 15a via a gear shaft 27 centered on the rotation axis CL3. That is, the third gear 23 is rotatable about the rotation axis CL3. The third gear 23 rotatably meshes with the fourth gear 24. By rotating together with the second gear 22, which receives rotational force from the first gear 21, the third gear 23 transmits the rotational force from the first gear 21 to the drum 12 side via the fourth gear 24.

[0028] The third gear 23 is a circular (perfectly round) spur gear. In this embodiment, the third gear 23 is formed to have a larger diameter than the second gear 22 and is positioned on the axial side of the second gear 22 (closer to the drum support portion 15a). The rotation center (rotation axis CL3) of the third gear 23 is located at the center of the third gear 23.

[0029] The fourth gear 24 is a gear directly connected to the drum 12 and is rotatably supported on the drum support portion 15a via a gear shaft 28 centered on the rotation axis CL1. That is, the fourth gear 24 is rotatable about the rotation axis CL1. The gear shaft 28 extends continuously from the other end (the left end in Figure 1) of the drum shaft 12a of the drum 12. The fourth gear 24 and the drum 12 are fixed to each other via the gear shaft 28. The fourth gear 24 is rotatably meshed with the third gear 23 and transmits the rotational force from the third gear 23 to the drum 12. That is, the rotation of the first gear 21 is transmitted to the drum 12 via the second gear 22, the third gear 23, and the fourth gear 24. The gear shaft 28 may be integrated with the drum shaft 12a of the drum 12, or it may be formed separately and fixed to the drum shaft 12a so as to be continuous with the drum shaft 12a.

[0030] The fourth gear 24 is a circular (perfectly circular) spur gear. In this embodiment, the fourth gear 24 is formed with a smaller diameter than the third gear 23. The rotation center (rotation axis CL1) of the fourth gear 24 is located at the center of the fourth gear 24. The number of teeth of the fourth gear 24 is set to be fewer than the number of teeth of the third gear 23.

[0031] The handle 13 has a handle shaft 13a, an arm portion 13b fixedly attached to the handle shaft 13a, and a gripping portion 13c attached to the arm portion 13b. One end of the handle shaft 13a is fixed to the gear shaft 26 of the first gear 21, and it extends outward from the gear shaft 26 along the axial direction of the gear shaft 26 (rotation axis CL2). That is, the handle 13 is fixed to the first gear 21 and is rotatably supported on the drum support portion 15a of the drum support 11 about the rotation axis CL2 via the gear shaft 26 of the first gear 21. The arm portion 13b is fixed to the other end of the handle shaft 13a and extends in a direction perpendicular to the axial direction of the handle shaft 13a (rotation axis CL2). The gripping portion 13c has a length that can be gripped by the user, is attached to the end of the arm portion 13b opposite to the handle shaft 13a, and extends outward from the arm portion 13b. As a result, the handle 13 is supported on the drum support 11 so as to be rotatable about a rotation axis CL2 in a direction intersecting the vertical direction. The shape of the handle 13 is not limited to a shape having a handle shaft 13a, an arm portion 13b, and a gripping portion 13c, but is not limited to a shape that can be connected to the first gear 21 without the need for other gears and can rotate the first gear 21.

[0032] Figure 3 is an explanatory diagram of the hose reel 10 viewed from the axial direction, illustrating the mounting angle of the handle 13 relative to the first gear 21. In Figure 3, the dashed line Rt indicates the rotational trajectory of the handle 13, and the white arrows indicate the direction of rotation when winding up the hose 1.

[0033] As shown in Figure 3, when the handle 13 is in region A, where it moves from top (p1) to bottom (p2) when winding up the hose 1, the handle 13 and the first gear 21 are connected in such a way that the semicircle c1 of the pitch circle of the first gear 21 on the long axis side where the rotation center is not located meshes with the semicircle c2 of the pitch circle of the second gear 22 on the long axis side where the rotation center is located. In other words, when the handle 13 is in region A, where it moves from top to bottom when winding up the hose 1, the pitch circle of the second gear 22 on the shorter side (semicircle c2 side) in the long axis direction (eccentric direction) from the rotation center (CL3) meshes with the first gear 21. Furthermore, in this embodiment, when winding up the hose 1, the region A in which the handle 13 moves from top to bottom is, for example, when winding up the hose 1, the handle 13 is rotated clockwise (in the direction indicated by the white arrow) in Figure 3. If the position where the handle 13 (arm portion 13b) is pointed directly upward from its rotation axis CL2 is taken as the reference position p1 (0 degrees), then region A is the area from the reference position p1 to the position p2, which is obtained by rotating the handle 13 180 degrees clockwise. Also, in this embodiment, when the handle 13 is rotated 60 degrees clockwise from the reference position p1, the major axes y1 and y2 of the first gear 21 and the second gear 22 are aligned in a straight line, and the pitch circle of the first gear 21 that is further away from the rotation center (rotation axis CL2) of the first gear 21 meshes with the pitch circle of the second gear 22 that is further away from the rotation center (rotation axis CL3) of the second gear 22.

[0034] Furthermore, it is not necessary for the semicircle c1 of the pitch circle of the first gear 21 and the semicircle c2 of the pitch circle of the second gear 22 to mesh over the entire region A in which the handle 13 moves from top to bottom. It is sufficient for the semicircle c1 of the pitch circle of the first gear 21 and the semicircle c2 of the pitch circle of the second gear 22 to mesh in at least a portion of the region A. For example, the semicircle c1 of the pitch circle of the first gear 21 and the semicircle c2 of the pitch circle of the second gear 22 may mesh between the reference position p1 (0 degrees) and 150 degrees, and between 150 degrees and 180 degrees (position p2), the pitch circle (semicircle) on the opposite side of semicircles c1 and c2 may mesh. Furthermore, in the region A where the handle 13 moves from top to bottom when winding up the hose 1, it is preferable that the semicircle c1 of the pitch circle of the first gear 21 and the semicircle c2 of the pitch circle of the second gear 22 mesh together in the entire region where the angle from the reference position p1 with the handle 13 facing directly upward is between 30 and 150 degrees.

[0035] Furthermore, when the handle 13 is in region B, where it moves from below (p2) to above (p1) when winding up the hose 1, the semicircle c3 of the pitch circle of the first gear 21 on the long axis side where the rotation center is located meshes with the semicircle c4 of the pitch circle of the second gear 22 on the long axis side where the rotation center is not located. In other words, when the handle 13 is in region B, where it moves from below to above when winding up the hose 1, the pitch circle of the second gear 22 on the side that is longer in the long axis direction (eccentric direction) from the rotation center (CL3) (the semicircle c4 side) meshes with the first gear 21. Note that the region B in which the handle 13 moves from below to above when winding up the hose 1 is, for example, in this embodiment, when winding up the hose 1, the handle 13 is rotated clockwise in Figure 3, so region B is from position p2 where the handle 13 (arm portion 13b) is pointed directly downward from its rotation axis CL2 to the reference position p1 where the handle 13 is rotated 180 degrees clockwise.

[0036] Next, we will explain the movement of the hose reel 10 when winding up hose 1.

[0037] When winding up hose 1, the user grips the handle 13 by the gripping portion 13c and rotates the handle 13, for example, clockwise. When the user rotates the handle 13, the first gear 21 rotates clockwise around the rotation axis CL2. When the first gear 21 rotates, the double gear 25, composed of the second gear 22 and the third gear 23, rotates counterclockwise around the rotation axis CL3. When the double gear 25 rotates, the fourth gear 24 rotates clockwise around the rotation axis CL1. When the fourth gear 24 rotates, the drum 12 rotates clockwise around the rotation axis CL1 (in the same direction as the rotation of the handle 13). As a result, hose 1 is wound up by the drum 12, which rotates in the same direction as the handle 13.

[0038] In the hose reel 10 configured as described above, the gear mechanism 20 includes a non-circular (elliptical in this embodiment) first gear 21 directly connected to the handle 13, and a non-circular (elliptical in this embodiment) second gear 22 that rotatably meshes with the first gear 21 and transmits the rotation of the first gear 21 to the drum 12. Thus, since the second gear 22, which is driven by the rotation of the first gear 21, is a non-circular gear having a pitch curve (pitch circle) whose distance from its rotation center CL3 is not constant, even if the first gear 21 is rotated at a constant speed, the rotational speed of the second gear 22 will not be the same speed, and there will be a region of high rotational speed (rotation angle) and a region of low rotational speed. In other words, during one rotation of the handle 13, it is possible to have a region of high rotational speed (rotation angle) where rotational speed is more important than the torque of the drum 12, and a region of high torque where torque is more important than the rotational speed of the drum 12. This makes it possible to match the region A where it is easy to apply force to the handle 13 with the region where the drum 12 rotates at a high speed, or to match the region B where it is difficult to apply force to the handle 13 with the region where the torque of the drum 12 is high. Therefore, during one rotation of the handle 13, when it is in region A where it is easy to apply force to the handle 13 (for example, the angle at which you put your weight on the handle 13 and move the handle 13 from top to bottom), the rotation of the drum 12 can be increased to wind up the hose 1 earlier, and conversely, when it is in region B where it is difficult to apply force to the handle 13, the rotation of the drum 12 can be slowed down to reduce (lighten) the force required to rotate the drum 12.

[0039] Furthermore, the first gear 21 and the second gear 22 are elliptical gears, and their centers of rotation are eccentric. When the major axes y1 and y2 of the first gear 21 and the second gear 22 are aligned in a straight line, the pitch circle of one gear that is further from the center of rotation meshes with the pitch circle of the other gear that is further from the center of rotation. As a result, during one rotation of the handle 13, it is possible to reliably create two regions: one where the rotational speed is more important than the torque of the drum 12 (a region of high rotational speed angle), and another where the torque is more important than the rotational speed of the drum 12 (a region of high torque angle).

[0040] Furthermore, when winding up the hose 1, the handle 13 is in region A, where it moves from top to bottom. At this point, the pitch circle of the second gear 22 on the shorter side (semicircle c2 side) of the pitch circle, relative to the center of rotation (CL3) along the long axis (eccentric direction), engages with the first gear 21. When the pitch circle of the second gear 22 on the semicircle c2 side engages with the first gear 21, the second gear 22 rotates quickly, resulting in a region (rotation angle) where rotational speed is prioritized over the torque of the drum 12, and the rotational speed is high. Thus, by combining region A, where it is easy to apply force to the handle 13, with a region where rotational speed is prioritized over the torque of the drum 12, the rotation of the drum 12 can be increased in region A, where it is easy to apply force to the handle 13, allowing the hose 1 to be wound up quickly.

[0041] Furthermore, since both the first gear 21 and the second gear 22 are elliptical gears, contrary to the above, when the handle 13 is in region B, where it moves from bottom to top when winding up the hose 1, the pitch circle of the second gear 22 on the side that is longer in the long axis direction (eccentric direction) from the center of rotation (CL3) (the semicircle c4 side) meshes with the first gear 21. When the pitch circle of the second gear 22 on the semicircle c4 side meshes with the first gear 21, the second gear 22 rotates slowly, resulting in a region (rotation angle) where torque is more important than the rotational speed of the drum 12 and torque is high. In this way, region B, where it is difficult to apply force to the handle 13, and region B, where torque is more important than the rotational speed of the drum 12 and torque is high, are combined. Therefore, in region B, where it is difficult to apply force to the handle 13, the rotation of the drum 12 can be slowed down, and the force required to rotate the drum 12 can be reduced (lighter).

[0042] Therefore, according to this embodiment, the hose 1 can be wound up by efficiently utilizing force.

[0043] Furthermore, the gear mechanism 20 includes a third gear 23 which is integrated with the second gear 22 to form a double gear, and a fourth gear 24 which meshes with the third gear 23 and is directly connected to the drum. In other words, since the gear mechanism 20 has three gear rotation axes CL1, CL2, and CL3, the rotation direction of the handle 13 and the rotation direction of the drum 12 can be made to coincide. Also, because it includes the elliptical first gear 21 and second gear 22, and has a small number of gears that can make the rotation direction of the handle 13 and the rotation direction of the drum 12 to coincide, the space required for installing the gear mechanism 20 can be reduced.

[0044] In this embodiment, the gear mechanism 20 includes four gears 21, 22, 23, and 24, but it is not limited to this, and it is sufficient to include at least the first gear 21 and the second gear 22.

[0045] Furthermore, while Figures 2 and 3 illustrate the first gear 21 and the second gear 22 in such a way that their elliptical shape is clearly visible externally, the first gear 21 and the second gear 22 are not limited to those in which their elliptical shape is clearly visible externally. For example, the first gear 21 and the second gear 22 may have an elliptical shape with such a small eccentricity that it is difficult to recognize their elliptical shape externally.

[0046] Furthermore, in this embodiment, the third gear 23 is formed with a larger diameter than the second gear 22, but it is not limited to this, and may be formed with a smaller diameter than the second gear 22. Also, in this embodiment, the third gear 23 is positioned on the axial side of the second gear 22 (closer to the drum support portion 15a), but it is not limited to this, and may be positioned on the axial side of the second gear 22.

[0047] Furthermore, in this embodiment, the fourth gear 24 is formed with a smaller diameter than the third gear 23, but this is not limited to this, and it may be formed with the same diameter as the third gear 23, or with a larger diameter than the third gear 23.

[0048] Furthermore, in this embodiment, the rotation axis CL2 of the handle 13 is positioned at the highest point, the rotation axis CL1 of the drum 12 is positioned at the lowest point, and the rotation axis CL3 of the double gear 25 is positioned at a height between the rotation axis CL2 and the rotation axis CL1. However, the height position of each rotation axis is not limited to this and can be set arbitrarily.

[0049] Furthermore, regardless of the relative positions of the rotation axis CL2 of the first gear 21 and the rotation axis CL3 of the second gear 22, it is preferable to connect the handle 13 and the first gear 21 such that when the handle 13 is in region A, where it moves from top to bottom when winding up the hose 1, the semicircle c1 in the direction of the long axis of the pitch circle of the first gear 21 that does not have a rotation center and the semicircle c2 in the direction of the long axis of the pitch circle of the second gear 22 that has a rotation center are meshed together.

[0050] Furthermore, although the drum support 11 is formed in a frame shape in this embodiment, the shape of the drum support 11 is not limited to this, and can be any shape that rotatably supports the drum 12.

[0051] Although the present invention has been described above based on the above embodiments, the present invention is not limited to the contents of the above embodiments, and can naturally be modified as appropriate without departing from the present invention. In other words, all other embodiments, examples, and operational techniques made by those skilled in the art based on these embodiments are of course included in the scope of the present invention. [Explanation of Symbols]

[0052] 1: Hose 10: Hose reel 11: Drum support 12: Drums 13: Handle 20: Gear mechanism 21: First gear 22: Second gear 23: Third gear 24: The fourth gear 25: Double gear

Claims

1. Drum support and A drum rotatably supported on the aforementioned drum support, on which a hose can be wound, A handle rotatably supported on the drum support and rotating by the handle, The system includes a gear mechanism that transmits the rotation of the handle to the drum, The gear mechanism includes a non-circular first gear directly connected to the handle, and a non-circular second gear that rotatably meshes with the first gear and transmits the rotation of the first gear to the drum side. The first gear and the second gear are elliptical gears, The rotation centers of the first gear and the second gear are eccentric in the direction of the long axis. When the major axes of the first gear and the second gear are aligned in a straight line, the pitch circle of one gear that is further from the center of rotation meshes with the pitch circle of the other gear that is further from the center of rotation. The handle is supported on the drum support so as to be rotatable about an axis of rotation in a direction intersecting the vertical direction, When the handle is in a position where it moves from top to bottom while winding up the hose, the pitch circle of the second gear that is shorter in the direction of the long axis from the center of rotation is engaged with the first gear. A hose reel characterized by the following features.

2. A circular third gear, which is integrated with the aforementioned second gear to form a double gear, It comprises a fourth gear that meshes with the third gear and is directly connected to the drum, The third gear and the fourth gear rotate around their respective center points. The rotation of the first gear is transmitted to the drum via the second gear, the third gear, and the fourth gear. A hose reel is provided in feature 1.

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