Portable blower

Abstract

A portable blower (1) is provided with: a fan (11) that rotates by a driving force and blows air; a lever (40) which is variable in position according to a user operation; and a control unit 32 that adjusts the rotational speed of the fan in accordance with the position of the lever 40. The lever (40) is movable in the circumferential direction of the outer circumferential surface of the portable blower (1). When a structure in which the wind speed or the wind volume is adjusted according to the position of an operation part of a user and the adjustable maximum value can be increased is adopted, the wind can be adjusted more easily than in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric appliances, and more particularly to a portable air blower. BACKGROUND

[0002] A small-sized fan that is easy to carry is known, which blows air to a part of the body to prevent, for example, heat stroke. For example, Patent Document 1 discloses a structure that includes a main air blower body that is rotated by a driving motor, and a case that houses the main air blower body. The case is located behind the neck in a wearing state, has a housing portion that houses the main air blower body, and a pair of shoulder hanging portions that extend forward from both ends of the housing portion to the left and right and are hung on the shoulders. In addition, the case is provided with an opening portion that is provided in the housing portion and opens toward the back of the neck so as to allow the air current generated by the main air blower body to pass therethrough, and a wind guide portion that guides the air current generated by the main air blower body to the back.

[0003]

Patent Document 1

[0004]

PROBLEMS TO BE SOLVED BY THE INVENTION

[0005] The defect of the prior art is that in a portable air blower that adjusts the air volume or air speed according to the position of the operation portion of the user, when a structure that increases the maximum adjustable value is adopted, if the range of the position in which the operation portion is movable is not extended, it can be difficult to adjust the air to the degree desired by the user.

[0006] The object of the present application is to provide a portable air blower that can more easily adjust the air volume or air speed compared to the prior art when a structure that increases the maximum adjustable value is adopted in the case of adjusting the air volume or air speed according to the position of the operation portion of the user.

[0007]

MEANS OF SOLVING THE PROBLEMS

[0008] To achieve the above object, the present application discloses a portable air blower that has an air blowing member that rotates to generate air blowing under the action of a driving force, an operation portion that can change position according to the operation of a user, and an adjustment portion that can adjust the rotational speed of the air blowing member according to the position of the operation portion. The operation portion can move in the circumferential direction of the peripheral surface of the portable air blower.

[0009] The adjustment portion can achieve stepless adjustment of the rotational speed of the air blowing member. The adjustment portion can also achieve multi-stage adjustment of the rotational speed of the air blowing member.

[0010] Furthermore, the adjustment unit can adjust the rotational speed of the air supply component by driving control of the drive source based on the detection result of the detection unit used to detect the position of the operation unit, and the detection unit is preferably located coaxial with the output shaft of the drive source.

[0011] Furthermore, the circumferential movement of the operating unit can be achieved by rotating it around the output shaft of the drive source.

[0012] Additionally, the operating part may have a shape-changing portion that changes relative to the circumferential shape. In this case, the shape-changing portion preferably extends in a plate shape along the rotation axis direction of the air supply component, and when the user places their finger against the outer peripheral surface and slides it along the rotation axis direction, the length of the shape-changing portion is shorter than the length of the finger.

[0013] Furthermore, the portable blower may also include a grip that a user can hold, and the operating part may have a portion that overlaps with the grip in the direction of rotation axis.

[0014] Furthermore, the portable blower may also include a handle that can be held by a user, and when the portable blower is viewed from the downstream side of the blower, the range in which the operating part can move circumferentially is preferably arranged to avoid the position of the handle.

[0015] Furthermore, the portable blower may also include a power control unit for controlling the power supply on and off, and this power control unit is disposed of with the control unit. In this case, the power control unit can be operated in a manner different from that of the control unit. More specifically, this patent discloses a portable blower comprising:

[0016] An air supply component that rotates and delivers air under a driving force;

[0017] An operating unit whose position can be changed according to the user's operation; and

[0018] An adjustment unit that adjusts the rotational speed of the air supply component according to the position of the operating unit; wherein the operating unit moves circumferentially along the outer peripheral surface of the portable air supply fan.

[0019] The regulating unit continuously adjusts the rotation speed of the air supply component.

[0020] The regulating unit performs multi-level adjustment of the rotation speed of the air supply component.

[0021] The portable blower also includes a detection unit and a drive source. The adjustment unit adjusts the rotation speed of the blower component by driving the drive source based on the detection result of the detection unit at the position of the detection operation unit. The detection unit is coaxially arranged with the output shaft of the drive source.

[0022] The circumferential movement of the operating unit is achieved by rotating it about the output shaft of the drive source.

[0023] The operating part has a shape-changing part whose shape changes in the circumferential direction.

[0024] The shape-changing portion of the operating part extends in a plate shape along the rotation axis of the air supply component, and its length is shorter than the length of the finger when the user places their finger on the outer peripheral surface and operates the shape-changing portion along the rotation axis.

[0025] The portable blower has a gripping part, and the operating part has a portion that overlaps with the gripping part in the direction of the rotation axis.

[0026] The portable blower has a handle, and when the portable blower is viewed from the downstream side of the air supply component, the range of motion of the operating part in the circumferential direction is set to avoid the handle.

[0027] The portable blower also has a power control unit, which is different from the control unit, for controlling the power supply switch.

[0028] The power supply operation unit operates in a manner different from that of the operation unit.

[0029] The beneficial effects of this patent include:

[0030] According to the present invention, in a portable blower, when a configuration is adopted that can increase the adjustable maximum value of wind speed or air volume according to the position of the user's operating part, the wind can be adjusted more easily compared with the prior art. Attached Figure Description

[0031] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0032] Figure 1 A perspective view of the portable blower according to this embodiment is shown.

[0033] Figure 2 A block diagram illustrating an example of the air delivery function of a portable blower.

[0034] Figure 3Exploded perspective view of the air supply section of the portable blower.

[0035] Figure 4 A diagram illustrating the operating range of the lever when adjusting the fan speed, wherein...

[0036] (a) indicates the portable blower involved in this embodiment.

[0037] (b) shows a partial schematic diagram of the portable blower involved in the comparative example.

[0038] Figure 5 A diagram illustrating the slider rod involved in this embodiment, wherein,

[0039] (a) is a front view of the portable blower partially shown, and (b) is its right side view.

[0040] Figure 6 A diagram illustrating the slider rod involved in this embodiment, wherein,

[0041] (a) is the first operation mode of the user's finger, and (b) is the second operation mode of the user's finger.

[0042] Figure 7 A diagram illustrating the slider rod involved in this embodiment, wherein,

[0043] (a) represents the case of this embodiment, and (b) represents the case of a modified example.

[0044] Figure 8 A diagram illustrating a variation of a portable blower, wherein,

[0045] (a) represents the first state of the slider, and (b) represents the second state of the slider.

[0046] Figure 9 A diagram illustrating a variation of the slider, wherein,

[0047] (a) is the first variation example, and (b) is the second variation example.

[0048] Reference Signs List

[0049] 1. Portable blower

[0050] 10a. Outer peripheral surface

[0051] 10b. Zhou Xiang

[0052] 11. Fan

[0053] 12. Electric motor

[0054] 12b. Rotation axis

[0055] 13. Slider

[0056] 15. Rotary encoder

[0057] 20.Handle part

[0058] 21. Power switch

[0059] 32. Control Department

[0060] 40. Rods

[0061] 41. Scope of Operation

[0062] 42. Front end

[0063] 43. Roots

[0064] 44. Height

[0065] 52. Height

[0066] 46. ​​Concave

[0067] 51. Width

[0068] 64. Part

[0069] 80. Variable resistor Detailed Implementation

[0070] Figure 1 A perspective view of the portable blower 1 according to this embodiment is shown. Figure 1 As shown, the portable blower 1 according to this embodiment includes an air delivery unit 10 and a handle unit 20. This portable blower 1 is a small, portable blower, and it contains a battery 31 (see [link to documentation]). Figure 2 ).

[0071] like Figure 1 As shown, the air supply section 10 is a part for supplying air to the portable blower 1 in direction 1A. In other words, the air supply section 10 has an air supply channel inside. Furthermore, the air supply section 10 has a built-in fan 11 for supplying air in direction 1A (see...). Figure 2 ) and the motor 12 that serves as its driving source (see also) Figure 2 ).

[0072] In addition, such as Figure 1 As shown, the air supply section 10 also has a slider 13, which is operated by the user to adjust the air volume of the fan 11. The slider 13 forms part of the outer peripheral surface 10a of the air supply section 10. More specifically, the slider 13 forms part of the outer peripheral surface 10a of the air supply section 10.

[0073] The slider 13 can be configured to be rotatable relative to the component 14 constituting the air supply section 10. More specifically, the slider 13 can rotate or move relative to the component 14 in the circumferential direction 10b. Figure 1 As shown, the slider 13, together with the component 14, forms part of the outer peripheral surface 10a of the air supply section 10. It should be noted that the outer peripheral surface 10a of the air supply section 10 is also the outer peripheral surface of the portable blower 1. Furthermore, the circumferential direction 10b of the air supply section 10 corresponds to the circumferential direction of the portable blower 1. In this embodiment, the slider 13 forms part of the outer peripheral surface 10a by being exposed throughout the entire circumferential direction, but it is not limited to this. It is also conceivable that only the area near the rod 40 of the slider 13 is exposed, while other parts of the slider 13 are not exposed. As an example of this, a configuration in which only the portion of the slider 13 for finger operation is exposed from the box-shaped housing.

[0074] The handle portion 20 is the part that extends away from the air supply portion 10 (in) Figure 1 The handle (extending downwards) has an elongated shape suitable for a user to hold while carrying or operating. Furthermore, a power switch 21 is located near the air supply section 10 on the handle 20 for turning the power on / off. The power switch 21 is a push-button for controlling power supply; for example, a long press can switch the power on / off.

[0075] As described above, in this embodiment, in addition to the slider 13, a power switch 21 is also provided as a user-operated component. In other words, in the portable blower 1 according to this embodiment, the power switch 21 and the slider 13 are separate, but this is not limited to this, and it is also conceivable that the slider 13 can also function as a power switch. For example, it is conceivable that the power is switched on / off by using the slider 13, and that a variation is implemented where the rotational speed is 0 when the slider 13 is moved to the minimum side. Another example is conceivable that a variation is implemented where the power is turned off by continuing to move the slider 13 after it has been moved to the minimum side.

[0076] In this variation, since the power on / off switching is also achieved through the operation of slider 13, user operability is improved compared to the present embodiment. On the other hand, in this embodiment, since the power switch 21 and slider 13 are separate, the possibility of accidental power-on while the user is carrying the device can be suppressed compared to the variation. For example, it can prevent the power from accidentally switching from the off state to the on state when the user puts the portable blower 1 in a bag.

[0077] To further clarify, the power switch 21 is not located on the outer peripheral surface of the air supply section 10, but rather on the front surface of the handle section 20. In other words, the power switch 21 is located away from the slider 13. Therefore, accidental operation of the power switch 21 can be prevented.

[0078] In addition, the handle portion 20 also has a plurality of lights 22 disposed on a side further away from the air supply portion 10 than the power switch 21. The plurality of lights 22 are light sources for indicating the power-on status, etc., and may also be used to indicate the battery 31 (see [link]). Figure 2 The remaining battery power.

[0079] Furthermore, the portable blower 1 also includes a hanging member 91 mounted on the upper surface of the air supply section 10, and a hanging member 92 mounted on the lower end of the handle section 20. By attaching, for example, a rope-like component to the hanging members 91 and 92, the user can hang the portable blower 1, for example, on the shoulder, when carrying it. Additionally, in the portable blower 1, the slider 13 side is sometimes referred to as the front side, and the component 14 side as the rear side (see...). Figure 3 ).

[0080] Figure 2 This is a block diagram illustrating an example of the configuration of the air supply function of the portable blower 1.

[0081] In the configuration example shown in the figure, the air supply function consists of a fan 11, a motor 12, a slider 13, a rotary encoder 15, a battery 31, and a control unit 32.

[0082] The fan 11 is a propeller having a rotating shaft rotatably held within the air supply section 10, and multiple blades disposed on the rotating shaft. When the fan 11 receives driving force from the motor 12, the rotating shaft begins to rotate, thereby driving the multiple blades to rotate. Thus, the fan 11 delivers air in the direction 1A of the portable blower 1 (see...). Figure 1 ).

[0083] Motor 12 serves as the driving source for fan 11. By controlling motor 12, the rotational speed of fan 11 can be adjusted. Here, rotational speed refers to the number of rotations per unit time. Therefore, by increasing the control of motor 12 to increase the rotational speed of fan 11, the wind speed or airflow can be increased; conversely, by decreasing the control of motor 12 to decrease the rotational speed of fan 11, the wind speed or airflow can be decreased.

[0084] The motor 12 involved in this embodiment is a direct current (DC) motor. By using a DC motor for the motor 12, the speed of the driven fan 11 can be precisely controlled. Therefore, when using a DC motor, the speed of the fan 11 can be adjusted in multiple stages according to one of the preset stages, or it can be adjusted steplessly. Alternatively, it is also possible to use an alternating current (AC) motor for the motor 12 and set the speed of the fan 11 to the aforementioned multi-stage adjustment.

[0085] The rotary encoder 15 is a sensor used to measure the circumferential position of the slider 13 due to rotation, converting the mechanical displacement of the rotation into an electrical signal. By converting the position of the slider 13 into an electrical signal, the rotary encoder 15 can detect the position of the slider 13 in the circumferential direction 10b (see [reference]). Figure 1 The displacement on the rotary encoder 15 will be explained later.

[0086] Battery 31 powers the rotary encoder 15 and the control unit 32. Battery 31 can be, for example, a lithium-ion battery, and can be charged via a connector not shown. In this embodiment, battery 31 is built into the handle portion 20 (see [link]). Figure 1 ).

[0087] The control unit 32 is composed of a control circuit board on which various electronic components are mounted. The control unit 32 includes a motor driver for driving the motor 12 and supplies power to the motor 12. Furthermore, the control unit 32 also drives the illumination of multiple lamps 22. In this embodiment, the control unit 32 is built into the handle portion 20 (see...). Figure 1 ).

[0088] In the portable blower 1 constructed in this way, such as Figure 2 As shown, when slider 13 is operated, rotary encoder 15 detects the position change of slider 13 and outputs the detection result as a signal to control unit 32. Control unit 32 supplies power to motor 12 according to the detection result. Control unit 32 adjusts the current flowing to motor 12. Thus, control unit 32 drives motor 12 based on the detection result of rotary encoder 15. Motor 12 drives fan 11 to rotate according to the signal from control unit 32. Thus, the fan speed or air volume can be adjusted according to the user's preference.

[0089] <Air supply section of portable blower>

[0090] Figure 3 This is an exploded perspective view of the air supply section 10 of the portable blower 1. As shown in the figure, the air supply section 10 includes a fan 11, a motor 12, a slider 13, a component 14, a rotary encoder 15, a mesh component 17, and a spacer 18.

[0091] exist Figure 3 In the air supply section 10 shown, an air supply channel is formed within the air supply section 10 by the inner peripheral surface of the slider 13 and the inner peripheral surface of the constituent component 14. A motor 12 is installed in this air supply channel.

[0092] The output shaft 12a of the motor 12 is located at the rear of the portable blower 1. The fan 11 is mounted on the output shaft 12a of the motor 12. The driving force of the motor 12 is transmitted to the fan 11 via the output shaft 12a. The motor 12 is a single-sided motor with an output shaft 12a at one end. Figure 3 In the diagram, the line containing the rotation center of the output shaft 12a of the motor 12 is shown as the rotation axis 12b. The rotation axis 12b of the motor 12 is also the rotation axis of the fan 11.

[0093] The motor 12 has a plurality of ribs extending radially from its outer peripheral surface. Further, the motor 12 is mounted on the inner peripheral surface of the constitutive component 14. The space between the outer peripheral surface of the motor 12 and the inner peripheral surface of the constitutive component 14 forms part of an air supply channel. Additionally, in this embodiment, by miniaturizing the motor 12, the cross-sectional area of ​​the air supply channel can be increased.

[0094] In this embodiment, the slider 13 moves circumferentially by rotating relative to the component 14 about the rotation axis 12b of the motor 12. However, the slider 13 is not limited to this configuration. For example, it is possible to consider a case where the slider 13 moves circumferentially by rotating about an axis other than the rotation axis 12b. As another example, it is also possible to consider a configuration in which the slider 13 does not rotate about an axis, but slides along the outer peripheral surface 10a of the air supply section 10.

[0095] The slider 13 has a lever 40 for user operation. The lever 40 protrudes from the outer periphery of the slider 13 and extends in a plate-like shape along the direction of the rotation axis 12b, and is composed of protruding pieces. The position of the lever 40 in the circumferential direction 10b (see...) Figure 1 The above-mentioned rotary encoder 15 is used for detection. The rod 40 protrudes in a shape change in the circumferential direction 10b.

[0096] The slider 13 is integrally formed from the rod 40 and the parts other than the rod 40. As described above, the slider 13 can move along the circumferential direction 10b (see...). Figure 1 The slider 13 moves, and the rod 40 of the slider 13 can also move circumferentially 10b. The integrated structure of the slider 13 allows for miniaturization of the portable blower 1. Additionally, the slider 13 has a circumferentially extending slit 13a. The slit 13a is a through hole for routing the wiring (not shown) of the motor 12 and the rotary encoder 15.

[0097] The rotary encoder 15 detects position changes caused by user operation of the slider 13, and the control unit 32 (see...) Figure 2 Based on the detection result, the driving force of motor 12 is controlled. Therefore, the speed of fan 11 is adjusted steplessly or in multiple stages according to the position of lever 40 of slider 13. Multi-stage adjustment, for example, can be achieved using OFF-ON, OFF-1-2-3, etc. In the case of multi-stage adjustment, the control burden is reduced compared to stepless adjustment. On the other hand, in the case of stepless adjustment, the user can more easily fine-tune the desired airflow.

[0098] The rotary encoder 15 is disposed on the front side of the portable blower 1 relative to the motor 12. In other words, the rotary encoder 15 is arranged on the side opposite to the output shaft portion 12a.

[0099] The rotary encoder 15 is fixedly mounted on the motor 12. More specifically, the motor 12 is provided with a mounting part 12c. The rotary encoder 15 is mounted on the mounting part 12c of the motor 12. Thus, the rotary encoder 15 and the motor 12 are integrated.

[0100] Furthermore, the center portion 15a of the rotary encoder 15 is located on the rotation shaft 12b of the motor 12. In other words, the rotary encoder 15 is coaxially arranged with the output shaft portion 12a of the motor 12. To further explain, the imaginary rotation axis of the slider 13 is located on the rotation shaft 12b of the motor 12 and is coaxially arranged with the output shaft portion 12a of the motor 12. This reduces the burden when operating using a lever. In addition, it ensures the accuracy of the position detection of the slider 13 by the rotary encoder 15.

[0101] In this embodiment, the rotational speed of the motor 12 is adjusted according to the rotational direction of the slider 13. This configuration differs from configurations that include buttons for increasing and decreasing the motor 12's speed.

[0102] The mesh component 17 is disposed at the rear of the portable blower 1. The mesh component 17 is mounted on the constituent component 14 via a spacer 18. It should be noted that the fan 11 is arranged in the space between the motor 12 and the mesh component 17 in the direction of the rotation axis 12b.

[0103] Here, fan 11 is an example of an air supply component, motor 12 is an example of a drive source, and the rotating shaft 12b of motor 12 is an example of an output shaft. Furthermore, slider 13 is an example of an operating unit, and lever 40 of slider 13 is an example of a shape-changing unit. Rotary encoder 15 is an example of a detection unit. Handle 20 is an example of a gripping unit, and power switch 21 is an example of a power operation unit. Control unit 32 is an example of an adjustment unit. Additionally, the operating range 41 of lever 40 (see...) Figure 4 (a) is an example of the range of circumferential movement that the operating part can move.

[0104] <Operating range of the rod>

[0105] Figure 4 This diagram illustrates the operating range of the lever when adjusting the speed of fan 11. (a) shows the portable blower 1 according to this embodiment, and (b) is a partial schematic diagram of the portable blower 101 according to the comparative example. Figure 4 In the portable blower 1 shown in (a), the fan 11 is adjusted (see, for example, see...). Figure 2 When the rotational speed is ), its operating range is the operating range 41 that can change the position of the lever 40 of the slider 13. That is, the current position of the lever 40, represented by the solid line, and the position of the imaginary lever 40, represented by the dashed line, respectively represent the moving end. Thus, the operating range 41 of the lever 40 is the arc portion centered on the rotation axis 12b, from the solid line position to the dashed line position.

[0106] On the other hand, Figure 4 In the portable blower 101 of the comparative example shown in (b), the slider 113 for adjusting the rotation speed is not provided on the air supply section 110, but on the handle section 120. The slider 113 has a lever 140 operated by the user. The lever 140 can be operated within an operating range 141 between the current position (lower end) and the imagined position (upper end).

[0107] in this way, Figure 4 (a) The operating range 41 is set along the circumference, while Figure 4 (b) The operating range 141 is set along the length direction, and the two differ in this respect. Furthermore, due to this difference, Figure 4 (a) Operating range 41 compared to Figure 4 (b) The operating range 141 is more likely to be ensured to be longer. In other words, when attempting to extend... Figure 4 (b) When the operating range is 141, the area occupied by the slider 113 in the handle portion 120 becomes longer, which is disadvantageous in design and risks reducing user operability. In this embodiment, as Figure 4As shown in (a), the operating range 41 is arranged circumferentially, which not only ensures a longer operating range, but also makes it more superior in design.

[0108] In addition, such as Figure 4 As shown in (a), when the airflow direction 1A from the portable blower 1 (see...) Figure 1 When observing the portable blower 1 from the downstream side, the operating range 41 of the lever 40, which is movable in the circumferential direction 10b, is set to a position that avoids the handle portion 20. This improves user operability compared to setting the operating range 41 without avoiding the handle portion 20. Of course, it is also possible to set the operating range 41 without avoiding the handle portion 20. In this way, a longer operating range 41 can be ensured.

[0109] <Characteristics of slider rods>

[0110] Next, refer to Figures 5 to 7 The rod 40 of the slider 13 involved in this embodiment is explained. Figure 5 This is a diagram illustrating the rod 40 of the slider 13 involved in this embodiment. (a) is a front view of the portable blower 1, partially shown, and (b) is its right view. Figure 5 As shown in (a), the rod 40 of the slider 13 is a component that extends radially in the front view. Furthermore, as... Figure 5 As shown in (a) and (b), the rod 40 has a predetermined width in the direction of the rotation axis 12b and is a plate-shaped component. Thus, the rod 40 extends in a plate-like shape in the direction of the rotation axis 12b.

[0111] Here, lever 40 is the part that the user hooks onto with their fingers during operation. Therefore, the shape of lever 40 affects the user's feel during operation. For this reason, we focus on the radial shape variation of lever 40. For example... Figure 5 As shown in (a), when comparing the thickness of the front end 42 and the root 43 of the lever 40, it can be seen that the root 43 is thicker than the front end 42. More specifically, the connection between the outer peripheral surface 13b of the slider 13 and the lever 40 is not formed at, for example, a 90-degree right angle, but rather a gently curved convex shape. This improves the tactile feel of the user's fingers when operating the lever 40 and enhances operability. Furthermore, it also increases the rigidity of the lever 40.

[0112] In addition, such as Figure 5 As shown in (b), in the side view, the rod 40 of the slider 13 has the same length as the slider 13 in the direction of the rotation axis 12b. In other words, the rod 40 is formed by passing through the entire slider 13 in the direction of the rotation axis 12b.

[0113] Figure 6This diagram illustrates the lever 40 of the slider 13 involved in this embodiment. (a) shows a first operation mode of the user's finger, and (b) shows a second operation mode of the user's finger. It should be noted that... Figure 6 (a) and (b) illustrate a user operating the lever 40 with their fingers touching the outer peripheral surface 10a of the air supply unit 10 and in contact with it along the rotation axis 12b. For example, when the user's fingers are viewed from the back of their hand placed on a table, their width is denoted as width 51, and the height of the fingers when viewed from the side is denoted as height 52. It should be noted that the width 51 and height 52 of the fingers are examples of the finger length.

[0114] exist Figure 6 In the first operating mode shown in (a), the height 44 of the radially extending lever 40 is lower than the width 51 of the user's finger. Furthermore, in Figure 6 In the second operating mode shown in (b), the height 44 of the lever 40 is lower than the height 52 of the user's finger. Therefore, the height 44 of the lever 40 is lower than both the width 51 and the height 52 of the user's finger. This allows for a reduction in the maximum external dimensions of the portable blower 1, thereby improving portability.

[0115] Figure 7 This is a diagram illustrating the rod 40 of the slider 13 involved in this embodiment. (a) shows the case of this embodiment, and (b) shows the case of a modified example. Figure 7 (a) and (b) are partial right views of the portable blower 1. Figure 7 The positional relationship between the rod 40 and the handle portion 20 in the direction of the rotation axis 12b is shown.

[0116] exist Figure 7 In the embodiment shown in (a), the lever 40 of the slider 13 has a portion 64 that overlaps with the handle portion 20 in the direction of the rotation axis 12b. More specifically, the handle portion 20 is provided in region 62 in the direction of the rotation axis 12b. Furthermore, the lever 40 is provided in region 63 in the direction of the rotation axis 12b. And, regions 62 and 63 overlap each other at portion 64. Thus, in the direction of the rotation axis 12b, the length of the air supply channel can be ensured while keeping the portable blower 1 compact.

[0117] In contrast, Figure 7 In the variation shown in (b), the lever 40 of the slider 13 does not overlap with the handle portion 20 in the direction of the rotation axis 12b. In other words, this variation does not have the portion 64 present in this embodiment. Therefore, the operating range 41 of the lever 40 (see [reference needed]) can be ensured. Figure 4 (a)) longer.

[0118] Figure 8This is a diagram illustrating a modified example of the portable blower 1. (a) shows the first state of the slider 13, and (b) shows the second state of the slider 13. As described above, the slider 13 is capable of rotating circumferentially 10b from... Figure 8 (a) shows the first state, rotated to the position on the circumferential direction 10b, which is... Figure 8 (b) shows the second state.

[0119] exist Figure 8 In the modified examples shown in (a) and (b), the variable resistor 80 detects the movement of the rod 40 disposed on the slider 13 in the circumferential direction 10b (see Figure 1 The position on the [unclear - likely referring to a specific component]. In other words, this variant is equipped with a variable resistor 80 to replace the rotary encoder 15 in this embodiment (see, for example, [unclear - likely referring to another component]). Figure 3 A variable resistor 80 is a component that converts changes in mechanical position into electrical signals such as voltage or resistance values.

[0120] The variable resistor 80 is a sliding potentiometer capable of sliding operation and includes a movable shaft 81 within the variable resistor 80. The variable resistor 80 rotates along the axis 12b (see...). Figure 3 The direction of the variable resistor 80 is arranged in a straight line. The variable resistor 80 is located on the fixed side component other than the slider 13.

[0121] The inner circumferential surface of the slider 13 has a groove 70 extending in an inclined direction relative to the circumferential direction 10b. The groove 70 is arranged in a helical direction relative to the circumferential direction 10b. The shaft portion 81 of the variable resistor 80 is located within the groove 70 of the slider 13 and moves within the groove 70 as the slider 13 rotates. Therefore, as... Figure 8 As shown in (a), the shaft portion 81 is located at one end of the groove portion 70, and as Figure 8 As shown in (b), the shaft portion 81 is located in the center of the groove portion 70.

[0122] Thus, in Figure 8 In the variations shown in (a) and (b), the moving side is a slider 13 with a groove 70, and the fixed side is a variable resistor 80 with a shaft 81 that can move within the groove 70. For example, the resistance value measured by the variable resistor 80 is sent to the control unit 32. Therefore, the position change of the rod 40 caused by the rotation of the slider 13 can be detected by the variable resistor 80, and the rotational speed of the motor 12 can be adjusted. The variable resistor 80 is an example of a detection unit.

[0123] Figure 9 These are diagrams illustrating variations of slider 13; (a) is the first variation, and (b) is the second variation. Figure 9 In the first modified example shown in (a), the rod 40 as described in this embodiment is not formed on the outer peripheral surface of the slider 13 (see, for example, see...). Figure 4(a)) A shape-changing portion that has a shape change in the circumferential direction. In other words, the slider 13 involved in the first variation has a larger outer diameter than that in this embodiment, and an anti-slip treatment such as knurling is applied to the outer peripheral surface. Such an anti-slip treatment can also be applied to the surface of the slider 13 in this embodiment. In addition, the outer diameter of the slider 13 involved in the first variation can be set such that its outer peripheral surface is within the rod 40 in this embodiment (see, for example, see...). Figure 4 The value of the prominent position in (a)).

[0124] exist Figure 9 In the second variation shown in (b), the outer peripheral surface of the slider 13 has a shape-changing portion whose shape changes in the circumferential direction, which is similar to the rod 40 involved in this embodiment (see, for example, [reference]). Figure 4 (a) is the same. However, in the second variation, the shape-changing part is a recess 46, which differs from the embodiment equipped with the rod 40. Furthermore, in the second variation, an anti-slip treatment such as knurling may be applied to the outer peripheral surface. The recess 46 in the second variation is an example of a shape-changing part.

[0125] In this embodiment, as described above, the rod 40 of the slider 13 (see, for example, [reference]) Figure 3 It can be circumferentially 10b (see, for example, see...) Figure 1 Movement. The circumferential direction 10b referred to here is the circumferential direction of the cross section in the vertical plane relative to the rotation axis 12b, but the direction of movement of the member 40 is not limited to this. For example, the member 40 can also be made to rotate obliquely relative to the circumferential direction of the cross section.

[0126] In this embodiment, the power switch 21 is a push-button button, and is operated by pressing. The pressing method can be a long press, a short press, etc. Furthermore, the power switch 21 is not limited to the above-described method; for example, it can also be operated by a toggle switch or a rotary switch. To further explain, the power switch 21 can be operated by a method different from the sliding method of the lever 40 of the slider 13. This prevents accidental operation.

[0127] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0128] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A portable air blower comprising: an air blowing member that rotates by a driving force and blows air; an operation member whose position is variable according to an operation by a user; and a regulation member that regulates a rotational speed of the air blowing member according to the position of the operation member; wherein the operation member is movable in a circumferential direction on an outer peripheral surface of the portable air blower.

2. The portable air blower of claim 1, wherein The regulation member steplessly regulates the rotational speed of the air blowing member.

3. The portable air blower of claim 1, wherein The regulation member regulates the rotational speed of the air blowing member in a plurality of steps.

4. The portable air blower of claim 1, wherein The portable air blower further comprises a detection member and a driving source, the regulation member regulates the rotational speed of the air blowing member by driving control of the driving source based on a detection result of the detection member that detects the position of the operation member, and the detection member is coaxially provided with an output shaft of the driving source.

5. The portable air blower of claim 1, wherein The circumferential movement of the operation member is achieved by rotation around the output shaft of the driving source.

6. The portable air blower of claim 1, wherein The operation member has a shape changing portion whose shape is changed in the circumferential direction.

7. The portable air blower of claim 6, wherein The shape changing portion of the operation member extends in a plate shape in a direction of the rotational axis of the air blowing member.

8. The portable air blower of claim 6, wherein The shape changing portion of the operation member extends in a plate shape in the direction of the rotational axis of the air blowing member, and has a length shorter than a length of a finger when the user attaches the finger to the outer peripheral surface and operates the shape changing portion in the direction of the rotational axis.

9. The portable air blower of claim 6, wherein The portable air blower has a holding portion, and the operation member has a portion overlapping with the holding portion in the position in the direction of the rotational axis.

10. The portable air blower of claim 1, wherein The portable air blower has a holding portion, and when the portable air blower is viewed from a downstream side of air blowing of the air blowing member, a range in which the operation member is movable in the circumferential direction is set to avoid a position of the holding portion.

11. A portable air blower as claimed in claim 1, wherein The portable air blower further has a power source operation member different from the operation member for controlling on / off of a power source.

12. The portable air blower of claim 11, wherein The power source operation member is operated in a manner different from the operation member.

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