JP7002961B2 - Fan - Google Patents

Description

The present invention relates to, for example, a fan powered by a rechargeable battery pack for a power tool.

A fan that uses a rechargeable battery pack does not need to be connected to a household power source (for example, AC 100V), so it can be carried and used in various places such as construction sites. Further, at a construction site or the like, a battery pack for a power tool is used as a power source for a power tool such as an electric drill or a screw tightening machine. By making the battery pack for power tools available for the electric fan, the convenience of the electric fan will be enhanced. Patent Document 1 discloses an electric fan using a battery pack for a power tool. Further, Patent Document 2 discloses a fan provided with a swing mechanism using a rechargeable battery pack for a power tool as a power source. The main body of the fan provided with the swing mechanism can swing around a swing axis extending in a direction intersecting the installation surface (reciprocating movement that changes direction to the left or right). As a result, it is possible to blow a wider range than a fan that does not automatically swing.

As a battery-powered fan provided with a conventional swing mechanism as disclosed in Patent Document 2, a relatively large battery pack having an output voltage of 14.4V, 18V or the like is used, for example. Since a battery-powered fan is used by being carried to a construction site or the like or mounted on a wall or the like, there is a demand for a fan that is smaller and lighter. In recent years, due to improvements in the performance of battery packs and electric motors, it has become possible to provide electric fans using relatively small battery packs having an output voltage of 10.8 V or the like. By using a relatively small battery pack, the main body and the battery mounting portion can be made compact.

Japanese Unexamined Patent Publication No. 2015-194121 Japanese Unexamined Patent Publication No. 2014-209001

On the other hand, it is difficult to provide the swing mechanism more compactly than the main body portion and the battery mounting portion. The pedestal portion provided with the swing mechanism of the fan using the conventional relatively large battery pack requires a length particularly in the extending direction (vertical direction) of the swing shaft. Therefore, even if the main body and the battery mounting portion can be made compact, it is difficult to make the electric fan compact. Therefore, the conventional electric fan using a relatively small battery pack is not provided with a swing mechanism.

An object of the present invention is to provide a swing mechanism to a fan using a battery pack and to provide the fan compactly to improve maneuverability.

The above problems are solved by the following inventions.

The first invention is a battery mounting part to which a rechargeable battery pack can be attached and detached, a fan motor and a swing motor using the battery pack as a power source, blades rotated by the fan motor, and a main body that rotatably supports the blades. It is a fan equipped with a part and a pedestal part that is installed on the installation surface and allows the main body to stand up against the installation surface. In the first invention, the pedestal portion supports the main body portion via the main body support portion provided in the main body portion. In the first invention, the pedestal portion includes a swing mechanism that reciprocates the main body portion within a predetermined angle around a swing axis extending in a direction intersecting the installation surface. In the first invention, the swing motor for driving the swing mechanism is housed in the pedestal portion on the outer peripheral side of the main body support portion in a state of overlapping with the main body support portion in the swing axis direction.

According to the first invention, the main body support portion and the swing motor can be arranged side by side in the direction intersecting the swing axis (front-back and left-right directions). As a result, the pedestal portion can be made compact especially in the direction in which the swing axis extends (vertical direction), and the usability of the fan is improved. By applying the first invention to a fan using a relatively small battery pack, it is possible to achieve both the mounting of the swing mechanism and the compactification of the fan particularly in the extending direction (vertical direction) of the swing shaft. Further, according to the first invention, the pedestal portion can be made compact in the extending direction (vertical direction) of the swinging shaft regardless of the size of the swinging motor. Therefore, the size of the swing motor can be selected relatively freely.

The second invention is a fan in which the pedestal portion in the first invention includes a pedestal recess for accommodating a main body support portion. In the second invention, the swing motor is arranged on the outer peripheral side of the pedestal recess.

According to the second invention, the pedestal portion can be made compact in the extending direction (vertical direction) of the swing axis, and the direction intersects the swing axis (front-back and left-right direction) so as not to interfere with the swing of the main body portion. The protrusion of the pedestal can be suppressed. Therefore, the fan equipped with the swing mechanism can be made more compact, and the usability of the fan is further improved.

A third aspect of the invention is a fan in which the pedestal portion in the first or second invention is provided with a plurality of hooking holes that can be hooked on a convex member provided on a wall surface as an installation surface. In the third invention, the pedestal portion can be hooked in the first posture by selecting one combination of the plurality of hook holes, and the second posture by selecting the other combination of the plurality of hook holes. It is possible to hook with. In the third invention, the blade is capable of blowing air into the first blowing range in the first posture, and the second blowing range and the second blowing range are 180 degrees around the swing axis in the second posture. It is possible to blow air into the rotated third air blowing range.

According to the third invention, the fan installed on the wall surface has a high degree of freedom in the direction in which the wind is blown and the range in which the wind is blown.

In the fourth aspect of the invention, in any one of the first to third inventions, the main body portion has a blade accommodating portion for accommodating blades, a battery mounting portion provided in the blade accommodating portion, a swing shaft, and rotation of the blades. It is a fan equipped with a wind direction changing mechanism for changing the wind direction around a swinging shaft that intersects both sides of the shaft. In the fourth invention, the wind direction changing mechanism includes a lock mechanism for locking the wind direction, and the blade accommodating portion can swing around the swing shaft when the lock mechanism is unlocked.

According to the fourth invention, for example, the wind direction in the vertical direction is locked by the locking mechanism. Thereby, for example, when the battery pack is mounted, the lock mechanism can prevent the blade accommodating portion from unexpectedly rotating around the swing axis of the wind direction changing mechanism due to its weight. This prevents the wind blowing direction from changing arbitrarily except for the swinging motion of the main body. In addition, it is possible to prevent the wind direction from being inadvertently changed due to a hand touching the blade accommodating portion.

A fifth aspect of the present invention is the fan in which the power of the swing motor is transmitted to the main body support portion via an arm provided in the swing mechanism in any one of the first to fourth inventions.

According to the fifth invention, the swing motor can be arranged apart from the swing shaft. This makes it easy to arrange the swing motor on the outer peripheral side of the main body support portion in a state of overlapping with the main body support portion in the swing axis direction.

A sixth aspect of the present invention is, in the fifth aspect, a fan having an arc-shaped arm. In the sixth invention, one end side of the arm is connected to the crank coupled to the output shaft of the swing motor, and the other end side is connected to the crank coupled to the main body support portion.

According to the sixth invention, it is possible to reduce the number of places where the arm overlaps in the vertical direction with respect to the crank coupled to the output shaft of the swing motor or the crank coupled to the main body support portion. This enhances the efficiency of power transmission in the swing mechanism.

A seventh aspect of the present invention is, in any one of the first to sixth aspects, a fan provided with a rotation restricting portion that regulates the rotation range of the reciprocating movement of the main body portion between the main body supporting portion and the pedestal portion. ..

According to the seventh invention, it is possible to suppress the blowing of air to a range larger than necessary while enabling the reciprocating movement of the main body portion.

It is a front view of the electric fan which concerns on 1st Embodiment. It is a top view of the electric fan which concerns on 1st Embodiment. It is a side view of the electric fan which concerns on 1st Embodiment in the state which a hook is in a retracted position. It is a rear view of the electric fan which concerns on 1st Embodiment in the state which the hook is in the retracted position. It is a bottom view of the electric fan which concerns on 1st Embodiment. It is a side view of the electric fan which concerns on 1st Embodiment in the state which the hook is in the use position. It is a rear view of the electric fan which concerns on 1st Embodiment in the state which the hook is in the use position. FIG. 2 is a cross-sectional view taken along the line VIII-VIII of FIG. 2, which is a vertical cross-sectional view of the electric fan according to the first embodiment. FIG. 2 is a cross-sectional view taken along the line IX-IX of FIG. 2, which is a vertical cross-sectional view of the electric fan according to the first embodiment. It is a bottom view of the electric fan which concerns on 1st Embodiment which removed the bottom surface of the base. FIG. 3 is a cross-sectional view taken along the line XI-XI of FIG. 3, which is a cross-sectional view of the electric fan according to the first embodiment. FIG. 3 is a cross-sectional view taken along the line XII-XII of FIG. 3, which is a cross-sectional view of the electric fan according to the first embodiment. It is a top view of the electric fan which concerns on 1st Embodiment which removed the battery pack. It is a rear view of the electric fan which concerns on 1st Embodiment which removed the battery pack. FIG. 13 is a cross-sectional view taken along the line XV-XV of FIG. 13, which is a vertical cross-sectional view of the electric fan according to the first embodiment. It is a front view of the electric fan which concerns on 2nd Embodiment. It is a top view of the electric fan which concerns on 2nd Embodiment. It is a side view of the electric fan which concerns on 2nd Embodiment. It is a rear view of the electric fan which concerns on 2nd Embodiment. It is a side view of the electric fan which concerns on 2nd Embodiment. FIG. 17 is a cross-sectional view taken along the line XXI-XXI of FIG. 17, which is a vertical cross-sectional view of the electric fan according to the second embodiment. FIG. 18 is a cross-sectional view taken along the line XXII-XXII of FIG. 18, which is a vertical cross-sectional view of the electric fan according to the second embodiment. It is a top view of the electric fan which concerns on 2nd Embodiment which removed the battery pack. It is a rear view of the electric fan which concerns on 2nd Embodiment which removed the battery pack. FIG. 17 is a cross-sectional view taken along the line XXV-XXV of FIG. 17, which is a vertical cross-sectional view of the electric fan according to the second embodiment.

Next, the first embodiment of the present invention will be described with reference to FIGS. 1 to 15. As shown in FIG. 1, the electric fan 1 includes a main body portion 10 and a pedestal portion 20 that supports the main body portion 10. As shown in FIGS. 3 and 8, the main body 10 is mounted on a battery mounting portion 40 to which a rechargeable battery pack 41 can be attached and detached, a fan motor 11 using the battery pack 41 as a power source, and a motor shaft 11a of the fan motor 11. The blade 12 is provided. The motor shaft 11a rotates about the axis Y. Therefore, the blade 12 mounted on the motor shaft 11a also rotates about the axis Y. In the following description, the direction in which the main body portion 10 is arranged is upward with respect to the pedestal portion 20, and the blowing direction of the blade 12 when the main body portion 10 described later is in the initial position is forward. The left-right direction is based on the time when the main body 10 is viewed from the front.

As shown in FIGS. 1 and 8, the main body 10 includes a blade accommodating portion 14 that accommodates the blade 12, and a main body support portion 13 that supports the blade accommodating portion 14. The support arm portion 13a of the main body support portion 13 supports the left and right ends of the blade accommodating portion 14. The blade 12 includes a central portion 12a mounted on the fan motor 11 and a plurality of blades 12b extending radially from the central portion 12a. The blade 12 is, for example, a three-blade type and includes three blades 12b.

As shown in FIGS. 1 to 4, the blade accommodating portion 14 is formed by connecting a circular bowl-shaped front guard 14a and a rear guard 14b to each other in the front-rear direction. The front guard 14a includes a cylindrical outer peripheral guard 14c that covers the radial outer periphery of the blade 12, and a mesh portion 14d that protects the front side of the blade 12. The rear guard 14b includes a cylindrical outer peripheral guard 14e that covers the radial outer periphery of the blade 12, and a mesh portion 14f that protects the rear side of the blade 12. By connecting the front guard 14a and the rear guard 14b to each other, the outer peripheral guard 14c and the outer peripheral guard 14e are connected side by side in the front-rear direction. The mesh portion 14d has a radial frame 14g extending in the circumferential direction from the radial direction (inclined counterclockwise from the center of the mesh portion 14d in FIG. 1) and a concentric circumferential direction extending in the circumferential direction. It has a frame 14h. The mesh portion 14f includes a radial frame 14i extending in the radial direction and a concentric circumferential frame 14j extending in the circumferential direction.

As shown in FIG. 8, the fan motor 11 is housed in a motor housing 16 provided in the main body 10. The motor housing 16 is arranged substantially in the center of the blade accommodating portion 14. At the initial position, the fan motor 11 is housed in the motor housing 16 by extending the motor shaft 11a in the front-rear direction (axis Y direction).

As shown in FIGS. 3 and 8, a battery mounting portion 40 to which the battery pack 41 can be attached and detached is provided behind the motor housing 16 and behind the blade accommodating portion 14. As shown by the downward white arrow in FIG. 3, the battery pack 41 is attached by sliding the battery mounting portion 40 from above to below. Further, as shown by the upward white arrow in FIG. 3, the battery pack 41 can be removed from the battery mounting portion 40 by sliding the battery pack 41 from the lower side to the upper side.

As shown in FIGS. 2 and 8, the battery pack 41 is provided with a claw portion 41a on the mounting surface side to be mounted on the battery mounting portion 40. Further, a removable button 41b that can be pushed and operated is provided on the rear surface side of the battery pack 41 in the mounting direction. The claw portion 41a is spring-forced so as to project toward the outside of the battery pack 41. The battery mounting portion 40 is provided with an engaging recess 40a that faces and engages with the claw portion 41a. The battery pack 41 is locked to the battery mounting portion 40 by engaging the claw portion 41a and the engaging recess 40a. By pressing and operating the removal button 41b, the claw portion 41a is housed inside the mounting surface. As a result, the claw portion 41a and the engaging recess 40a are disengaged, the locked state of the battery pack 41 is released, and the battery pack 41 can be slid with respect to the battery mounting portion 40.

As shown in FIGS. 2 to 4 and 8, the battery pack 41 is for a rechargeable power tool, and is used as a power source for a power tool such as an electric screw tightening machine or a grinder. The battery pack 41 can be charged with a separately prepared charger and can be used as a repetitive power source. The battery pack 41 is a lithium ion battery that outputs, for example, a direct current of 10.8 V. The battery pack 41 is electrically connected to a power supply circuit of a control plate (not shown) provided in the motor housing 16 via the battery mounting portion 40. The output power of the battery pack 41 is supplied to the fan motor 11 via the power supply circuit of the control plate.

The electric fan 1 can use an external power source such as AC 100V instead of the battery pack 41. As shown in FIGS. 4, 7 and 14, a power supply connection port 22 to which a power plug or the like extending from an external power source can be connected is provided at the rear portion of the base 20a.

As shown in FIGS. 2 and 13, the pedestal portion 20 includes a rectangular base 20a installed on the installation surface and legs 20b covering the corners of the base 20a. The ground plane of the leg portion 20b is the ground or the like when the fan 1 is used outdoors. The ground contact surface of the leg portion 20b when the fan 1 is used in the vehicle is a seat or the like, and the ground contact surface of the leg portion 20b when the fan 1 is used indoors is a floor, a wall or the like. The leg portion 20b is formed of an elastomer, and suppresses vibration generated when the blade 12 rotates from being transmitted from the blade accommodating portion 14 to the installation surface. Each of the left and right ends of the base 20a is provided with a through hole 20g that penetrates in the vertical direction. The weight of the base 20a can be reduced by the through hole 20g. Further, by passing a finger through the through hole 20g, the user can easily grip the base 20a.

As shown in FIGS. 1 and 10, the main body support portion 13 includes a left-right rotating portion 13c rotatably mounted in the pedestal recess 20c of the base 20a, and a support arm portion 13a provided above the left-right rotating portion 13c. .. The support arm portion 13a has an arc shape extending along the circumferential direction of the outer peripheral guards 14c and 14e. As shown in FIGS. 8 and 10, a disc-shaped recessed pedestal recess 20c is provided in the upper portion of the base 20a. The left-right rotating portion 13c has a disk shape that fits in the pedestal recess 20c, and is arranged in the pedestal recess 20c. Therefore, the left-right rotating portion 13c is rotatably supported by the pedestal recess 20c around the swing axis (axis Z) extending in the vertical direction.

As shown in FIGS. 8 and 15, on the lower surface of the left-right rotating portion 13c, a regulation convex portion 13e that restricts the left-right rotating portion 13c from rotating beyond a predetermined rotation range with respect to the base 20a is provided. The regulation convex portion 13e is provided on the rear side (rear guard 14b side) of the main body support portion 13. As shown in FIG. 10, the pedestal recess 20c has a semicircular groove portion 20h centered on the axis Z. The groove portion 20h is formed so as to straddle the rear half of the pedestal portion 20. As shown in FIG. 8, the regulation convex portion 13e has entered the groove portion 20h. The regulation convex portion 13e and the groove portion 20h function as a rotation regulation portion that regulates the rotation range around the axis Z of the main body portion 10. The regulation convex portion 13e moves along the groove portion 20h by rotating the main body support portion 13 about the axis Z. As a result, the main body support portion 13 can rotate up to approximately 90 degrees in the left-right direction from the initial position, and rotation at a higher angle is restricted by the regulation convex portion 13e coming into contact with the end portion of the groove portion 20h.

As shown in FIGS. 2 and 8, a motor housing 23 is provided at the rear left end portion of the pedestal portion 20. The motor housing 23 is arranged outside the outer circumference of the pedestal recess 20c. As shown in FIG. 9, the swing motor 31 is housed in the motor housing 23. The swing motor 31 is housed in a vertical direction in which the motor shaft 31a is parallel to the axis Z. The motor housing 23 includes an extension portion 23a extending upward from the upper surface of the base 20a. The extending portion 23a is provided so as to have a height that does not interfere with the main body portion 10 that swings and the hook 18 provided on the main body portion 10. A plurality of reduction gears (not shown) are interposed between the motor shaft 31a and the output shaft 31b of the swing motor 31. The motor shaft 31a is rotationally driven by being supplied with electric power from the battery pack 41. The rotation of the motor shaft 31a is transmitted to the output shaft 31b while decelerating via a plurality of reduction gears.

As shown in FIG. 10, one end side of the crank 31c is connected to the output shaft 31b so as to be relatively non-rotatable. Therefore, the crank 31c rotates integrally with the output shaft 31b. A crank 33 having a disk-shaped portion protruding in the radial direction is attached to the lower portion of the main body support portion 13. The tip portion 31d of the crank 31c and the protruding portion 33a of the crank 33 are connected by an arm 32. One end of the arm 32 is connected to the tip portion 31d, and the other end is connected to the protruding portion 33a. The arm 32 is made of highly rigid metal and is formed in an arc shape. The swing mechanism 30 is composed of the crank 31c, the arm 32, and the crank 33. The rotational drive of the output shaft 31b is converted into a swing motion (left and right swing motion) of a predetermined angle (about 90 ° in this embodiment) around the axis Z of the main body support portion 13 by the swing mechanism 30. Due to the rocking motion of the main body support portion 13, the wind generated by the blades 12 is blown over a wide range.

As shown in FIGS. 8 and 15, the left-right angle adjusting mechanism (manual swing mechanism) 20d includes one or more, for example, two position holding members 13d and a spring for urging the position holding member 13d. The position holding member 13d is provided at the lower part of the left-right rotating portion 13c so as to be movable in the vertical direction (axis Z direction). The spring urges the position holding member 13d toward the rotating member 27. The rotating member 27 is supported in the base 20a, and includes a positioning portion 27a having concave portions 27b and convex portions (not shown) alternately on the circumference corresponding to the position holding member 13d. By rotating the left-right rotating portion 13c about the axis Z with respect to the base 20a, the position holding member 13d moves upward against the force of the spring and exceeds the convex portion of the positioning portion 27a. Then, the position holding member 13d enters the recess 27b of the positioning portion 27a by using the force of the spring. As a result, the main body support portion 13 is releasably held at a plurality of positions with respect to the base 20a. Therefore, the left-right angle adjusting mechanism 20d elastically holds the left-right rotating portion 13c at a predetermined angle with respect to the base 20a, and makes it possible to adjust the direction of the blade accommodating portion 14 in the left-right direction. This makes it possible to manually adjust the direction of the wind in the left-right direction. Further, the direction of the swing center of the main body support portion 13 by the swing mechanism 30 can be manually adjusted.

As shown in FIG. 2, the blade accommodating portion 14 is rotatably supported around the axis X with respect to the support arm portion 13a by the vertical angle adjusting mechanism 13b. The vertical angle adjusting mechanism 13b has a function of elastically holding the blade accommodating portion 14 at an adjusted angle position with respect to the support arm portion 13a. Therefore, the wind direction can be adjusted in the vertical direction by adjusting the vertical angle of the blade accommodating portion 14 by the vertical angle adjusting mechanism 13b.

As shown in FIG. 11, the vertical angle adjusting mechanism 13b is provided at the connecting portion of the support arm portion 13a with the blade accommodating portion 14. The vertical angle adjusting mechanism 13b includes a shaft member 28 extending in the axis X direction (horizontal direction) via the blade accommodating portion 14 and the support arm portion 13a, a position holding member 29 provided on the support arm portion 13a, and a position holding member. It is equipped with a spring that urges 29. The position holding member 29 is attached to the support arm portion 13a so as to be movable in the radial direction of the shaft member 28. The spring is provided on the support arm portion 13a and urges the position holding member 29 toward the shaft member 28. The shaft member 28 includes a positioning portion 28a having concave portions and convex portions alternately provided in the circumferential direction on the outer periphery corresponding to the position holding member 29. By rotating the blade accommodating portion 14 around the shaft member 28 around the axis X with respect to the support arm portion 13a, the position holding member 29 moves away from the rotation axis against the force of the spring and the convex portion of the positioning portion 28a. Exceeds. Then, the position holding member 29 enters the recess of the positioning portion 28a by using the force of the spring. As a result, the blade accommodating portion 14 is held releasably at predetermined angles with respect to the support arm portion 13a.

As shown in FIG. 1, an operation unit 21 is provided on the front surface of the base 20a. The operation unit 21 is provided with a power switch 21a, an air volume switch 21b, a timer switch 21c, and a swing switch 21d. The fan motor 11 is activated by pressing and operating the power switch 21a. Further, the running fan motor 11 can be stopped by pressing and operating the power switch 21a. By pushing and operating the air volume switch 21b, the air volume of the wind generated by the blade 12 can be switched stepwise. By pressing and operating the air volume switch 21b, for example, the air volume can be sequentially switched to three stages. By pressing and operating the timer switch 21c, it is possible to set a timer for the fan motor 11 to stop at a predetermined time, and the length of the predetermined time until the fan motor 11 stops can be switched stepwise. By pressing and operating the timer switch 21c, for example, it is possible to sequentially switch between a timer-on setting state and a timer-off setting state for a predetermined time in three stages. By pressing and operating the swing switch 21d, it is possible to switch the on / off state of the left / right swing movement of the main body 10 by the swing mechanism 30.

As shown in FIG. 5, a pair of horizontal posture hook holes 24 are formed side by side on the lower surface 20f of the base 20a. A hook convex portion such as a screw mounted on a wall or the like is inserted into the horizontal posture hook hole 24. The lateral hook hole 24 is formed from a circular hole 24a having a diameter large enough to allow the screw head to be inserted and a circular hole 24a having a width such that the screw head cannot be inserted and the screw shaft portion can be inserted. It has an elongated elongated hole 24b. One elongated hole 24b is provided at each of the front and rear ends of the circular hole 24a. With the head of the screw inserted in the circular hole 24a, the base 20a is slid so that the shaft portion of the screw enters the elongated hole 24b, whereby the screw is prevented from coming off from the lateral hook hole 24. By preventing the screw from coming off from the lateral position hook hole 24, the fan 1 can be hooked on a wall or the like in a stable state.

As shown in FIG. 5, a pair of vertical posture hook holes 25 are formed side by side on the lower surface 20f of the base 20a. A hooking protrusion such as a screw mounted on a wall or the like is inserted into the vertical posture hooking hole 25. The vertical posture hook hole 25 is formed from a circular hole 25a having a diameter large enough to allow the screw head to be inserted and a circular hole 25a having a width such that the screw head cannot be inserted and the screw shaft portion can be inserted. It has an elongated elongated hole 25b. The elongated hole 25b is formed so as to extend to the right from the circular hole 25a. With the head of the screw inserted into the circular hole 25a, the base 20a is slid so that the shaft portion of the screw enters the elongated hole 25b, whereby the screw is prevented from coming off from the vertical posture hook hole 25. By preventing the screw from coming off from the vertical posture hook hole 25, the fan 1 can be hooked on a wall or the like in a stable state.

As shown in FIG. 5, the lower surface 20f of the base 20a is provided with a mounting hole 26 for fixing the fan 1 to a tripod or the like. A fixing screw for mounting a tripod is tightened in the mounting hole 26.

As shown in FIGS. 3, 4, 6 and 7, a hook 18 for hanging and using the blade accommodating portion 14 is provided at the rear portion of the blade accommodating portion 14. The hook 18 is rotatably attached to the left and right ends of the battery mounting portion 40, and is provided so as to be movable between the storage position shown in FIGS. 3 and 4 and the usage position shown in FIGS. 6 and 7. .. The hook 18 includes a pair of left and right arm portions 18a and a connecting portion 18b formed so as to bridge between one ends of each of the pair of arm portions 18a.

As shown in FIGS. 3, 4, 6 and 7, the arm portion 18a is provided with a rotation support portion 18c on the other end side which is not connected to the connecting portion 18b. The rotation support portion 18c is rotatably mounted on the left and right ends of the battery mounting portion 40, respectively. The rotation support portion 18c projects horizontally in the left-right direction, and the arm portion 18a is rotatably attached to the battery mounting portion 40 in the vertical direction. The center of rotation of the arm portion 18a is located above the axis Y, which is the center of rotation of the blade 12. The connecting portion 18b is formed longer than the width between the pair of rotational support portions 18c. The arm portion 18a includes a curved portion 18d that is curved on the rotation support portion 18c side from the connection portion with the connecting portion 18b. The curved portion 18d is curved rearward at the storage position and forward at the use position. The curved portion 18d allows the arm portion 18a to be formed along the outer shape of the rear guard 14b at the position of use.

A hooking portion 18e is provided at the central portion of the connecting portion 18b. The hook portion 18e is formed so as to be curved in a substantially U shape in a direction opposite to the bending direction of the curved portion 18d. That is, the hooking portion 18e is provided so as to be curved toward the front at the storage position and toward the rear at the use position. When the hook 18 is positioned at the retracted position, the connecting portion 18b is located below the arm portion 18a. As shown in FIGS. 6 and 7, the hooking portion 18e at the used position can be hooked on the hooking target member to suspend the fan 1. The hooking target member is, for example, an assist grip in a vehicle, a vehicle part such as a partition pipe, or a pipe, a beam, a ladder, or the like at a work site.

According to the fan 1 configured as described above, the main body support portion 13 and the swing motor 31 are arranged side by side in the front-rear and left-right directions intersecting the swing axis (axis Z), and are mutually overlaid in the axis Z direction. It is wrapped and placed. As a result, the pedestal portion 20 can be made compact especially in the vertical direction in which the swing axis (axis line Z) extends, and the usability of the fan 1 is enhanced. By applying it to the fan 1 using a relatively small battery pack 41, it is possible to achieve both the mounting of the swing mechanism 30 and the compactification of the fan 1 in the vertical direction in which the swing axis (axis Z) extends. Further, according to the fan 1, the pedestal portion 20 can be made compact particularly in the vertical direction in which the swing axis (axis line Z) extends, regardless of the size of the swing motor 31. Therefore, the size of the swing motor 31 can be selected relatively freely.

Further, according to the fan 1, the swing motor 31 is arranged on the outer peripheral side of the pedestal recess 20c. Therefore, the pedestal portion 20 can be made compact in the vertical direction in which the swing axis (axis line Z) extends, and the protrusion of the pedestal portion 20 in the front-back and left-right directions can be suppressed. As a result, the fan 1 can be made more compact while maintaining the state in which the main body support portion 13 can be swung by the swing mechanism 30, and the usability of the fan 1 is further enhanced.

Further, according to the electric fan 1, the electric fan is provided with a plurality of hooking holes that can be hooked on the convex member provided on the wall surface where the pedestal portion 20 is the installation surface. The pedestal portion 20 can be hooked in a lateral posture in which the longitudinal direction of the pedestal portion 20 extends laterally (left-right direction) by selecting the horizontal posture hooking hole 24. Further, the pedestal portion 20 can be hooked in a vertical posture in which the longitudinal direction of the pedestal portion 20 extends vertically (vertically) by selecting the vertical posture hooking hole 25. The blade 12 can blow air to the first air blowing range below the main body 10 in the lateral posture. Further, the blade 12 can blow air into a second blowing range to the right of the main body 10 and a third blowing range to the left of the main body 10 in a vertical posture. Thus, according to the fan 1, there is a high degree of freedom in the direction in which the wind blows and the range of ventilation when the fan 1 is installed by hanging it on a wall surface. Further, for example, the fan 1 can be hooked by selecting the posture in which the motor housing 23 in which the swing motor 31 is housed is on the lower side. As a result, the fan 1 is hooked in a stable state where the center of gravity is lower.

Further, according to the electric fan 1, the arm 32 is connected between the crank 31c coupled to the output shaft 31b and the crank 33 coupled to the lower portion of the main body support portion 13. The arm 32 transmits power from the output shaft 31b to the main body support portion 13. Therefore, the swing motor 31 can be arranged with a distance substantially corresponding to the length of the arm 32 in the longitudinal direction with respect to the swing axis (axis Z) of the main body 10. This makes it easy to arrange the swing motor 31 on the outer peripheral side of the main body support portion 13 in a state of overlapping with the main body support portion 13 in the axis Z direction.

Further, according to the electric fan 1, the arm 32 has an arc shape, one end of which is connected to the tip portion 31d of the crank 31c, and the other end of which is connected to the protruding portion 33a of the crank 33. Therefore, it is possible to reduce the number of places where the arm 32 overlaps the crank 31c and the crank 33 in the vertical direction. Specifically, the arm 32 is provided so as to overlap the crank 31c and the crank 33 in the vertical direction only at the tip portion 31d and the protruding portion 33a in the moving locus. Thus, the power transmission efficiency in the swing mechanism 30 is increased.

Further, according to the fan 1, a regulation convex portion 13e is provided in the main body support portion, and a groove portion 20h is provided in the pedestal recess 20c to function as a rotation regulation portion that regulates the rotation range around the axis Z of the main body portion 10. .. Therefore, it is possible to prevent the main body 10 from being blown to a range larger than necessary while allowing the main body portion 10 to reciprocate.

Further, according to the fan 1, the hook 18 is provided behind the rear guard 14b at the initial position, and the motor housing 23 is provided at the rear left end portion of the main body portion 10. Therefore, when the hook 18 is moved to the used position and hooked on the hooking target member, the blowing direction of the blade 12 approaches the horizontal direction due to the weight of the swing motor 31 housed in the motor housing 23. Further, the motor housing 23 and the swing motor 31 stabilize the weight balance of the fan 1 hooked on the hooked member.

Next, the second embodiment of the present invention will be described with reference to FIGS. 16 to 25. The fan 50 of the second embodiment includes a battery mounting portion 60 instead of the battery mounting portion 40 of the fan 1 of the first embodiment. The battery mounting portion 60 can mount a battery pack 61 having a larger electric output than the battery pack 41. For example, a 14.4V or 18V output lithium ion battery is used for the battery pack 61. Further, the fan 50 includes a shaft member 63, a position holding member 64, and an unlock button 62 instead of the shaft member 28 and the position holding member 29 of the fan 1.

As shown in FIG. 25, a battery mounting portion 60 to which the battery pack 61 can be attached and detached is provided behind the motor housing 16 and behind the blade accommodating portion 14. As shown by the downward white arrow in FIG. 18, the battery pack 61 is attached by sliding the battery mounting portion 60 from the upper side to the lower side. Further, as shown by the upward white arrow in FIG. 18, the battery pack 61 can be removed from the battery mounting portion 60 by sliding the battery pack 61 from the lower side to the upper side.

As shown in FIGS. 17 and 25, the battery pack 61 is provided with a claw portion 61a on the mounting surface side to be mounted on the battery mounting portion 60, and is provided with a pushable removable button 61b on the rear surface side in the mounting direction of the battery pack 61. .. The claw portion is spring-urged so as to project toward the outside of the battery pack 61. Similar to the battery mounting portion 40 shown in FIG. 8, the battery mounting portion 60 is provided with an engaging recess 60a that faces and engages with the claw portion 61a. The battery pack 61 is locked to the battery mounting portion 60 by engaging the claw portion 61a and the engaging recess 60a. By pushing and operating the removal button 61b, the claw portion 61a is housed inside the mounting surface. As a result, the claw portion 61a and the engaging recess 60a are disengaged, the locked state of the battery pack 61 is released, and the battery pack 61 can be slid with respect to the battery mounting portion 60.

As shown in FIGS. 17 to 20, the battery pack 61 attached to the battery mounting portion 60 is particularly longer in the front-rear direction than the battery pack 41 attached to the battery mounting portion 40 shown in FIGS. 2 to 4. The hook 18 is provided so that it can be used in the storage position and the use position without interfering with the battery pack 61, and can be moved between the two positions of the storage position and the use position.

As shown in FIG. 20, a notch 60b is provided at the lower end of the battery mounting portion 60 at the front portion in contact with the rear guard 14b. Since the battery pack 61 is larger and heavier than the battery pack 41, the size of the battery mounting portion 60 is also large. Therefore, it becomes difficult to suck a sufficient flow rate on the upstream side (rear side) of the blade 12 of the fan 50. However, by forming the notch portion 60b, the flow rate sucked from the upstream side (rear side) of the blade 12 can be increased.

As shown in FIGS. 21 and 22, the vertical angle adjusting mechanism 13b is provided at the connecting portion of the support arm portion 13a with the blade accommodating portion 14. The vertical angle adjusting mechanism 13b includes a shaft member 63 extending in the axis X direction (horizontal direction) via the blade accommodating portion 14 and the support arm portion 13a, a position holding member 64 provided on the support arm portion 13a, and a position holding member. It is equipped with a spring that urges 64. The position holding member 64 is attached to the support arm portion 13a so as to be movable in the radial direction of the shaft member 63. The spring is provided on the support arm portion 13a and urges the position holding member 64 toward the shaft member 63. The shaft member 63 includes a positioning portion 63a having concave portions 63b and convex portions 63c alternately provided in the circumferential direction on the outer periphery corresponding to the position holding member 64. By rotating the blade accommodating portion 14 around the shaft member 63 around the axis X with respect to the support arm portion 13a, the position holding member 64 separates from the rotation axis against the force of the spring and the convex portion of the positioning portion 63a. It exceeds 63c. Then, the position holding member 64 enters the recess 63b of the positioning portion 63a by using the force of the spring. As a result, the blade accommodating portion 14 is held releasably at predetermined angles with respect to the support arm portion 13a.

As shown in FIGS. 16 to 22, an unlock button 62 that can be pushed is provided on the outside (right side) of the shaft member 63 in the X direction of the axis. When the unlock button 62 is not operated, the shaft member 63 does not rotate about the axis X with respect to the position holding member 64. Therefore, the state in which the vertical orientation of the blade accommodating portion 14 with respect to the main body support portion 13 does not change is maintained. When the unlock button 62 is pressed, the shaft member 63 can rotate about the axis X with respect to the position holding member 64. Therefore, the vertical orientation of the blade accommodating portion 14 with respect to the main body support portion 13 can be changed.

As shown in FIG. 21, the axis X, which is the vertical rotation center axis of the blade accommodating portion 14 of the fan 50, is arranged in front of the axis Z, which is the left-right rotation axis of the main body support portion 13. The shaft member 63 is arranged so that its axis center substantially coincides with the axis X. The front-rear position where the shaft member 63 is arranged substantially coincides with the front-rear position of the center of gravity of the main body portion 10. That is, the center of gravity of the main body 10 of the fan 50 is configured to be located in front of the axis Z. The battery mounting portion 60 and the battery pack 61 are larger and heavier than the battery mounting portion 40 and the battery pack 41, respectively. Therefore, by arranging the main body 10 in front of the axis Z, the balance of the center of gravity in the front-rear direction of the main body 10 with the battery pack 61 attached can be improved. As a result, the balance of the main body 10 when the fan 50 is fixed to a tripod or the like by using the mounting hole 26 referred to in FIG. 5, for example, is maintained.

According to the fan 50 configured as described above, the main body support portion 13 and the swing motor 31 are arranged side by side in the front-rear and left-right directions intersecting the swing axis (axis Z), and are mutually overlaid in the axis Z direction. It is wrapped and placed. As a result, the pedestal portion 20 can be made compact especially in the vertical direction in which the swing axis (axis line Z) extends, and the usability of the fan 50 is enhanced. Further, according to the fan 50, the pedestal portion 20 can be made compact particularly in the vertical direction in which the swing axis (axis line Z) extends, regardless of the size of the swing motor 31. Therefore, the size of the swing motor 31 can be selected relatively freely.

Further, according to the fan 50, the swing motor 31 is arranged on the outer peripheral side of the pedestal recess 20c. Therefore, the pedestal portion 20 can be made compact in the vertical direction in which the swing axis (axis line Z) extends, and the protrusion of the pedestal portion 20 in the front-back and left-right directions can be suppressed. As a result, the fan 50 can be made more compact while maintaining a state in which the main body support portion 13 can be swung by the swing mechanism 30, and the usability of the fan 50 is further enhanced.

Further, according to the fan 50, in order to rotate the blade accommodating portion 14 by the vertical angle adjusting mechanism 13b, it is necessary to press the unlock button. Therefore, according to the fan 50, it is possible to prevent the blade accommodating portion 14 from unexpectedly rotating around the axis X that rotates the vertical angle adjusting mechanism 13b due to the weight of the relatively large battery pack 61 when it is attached. As a result, it is possible to prevent the wind blowing direction from changing arbitrarily except for the swinging motion of the main body portion 10. In addition, it is possible to prevent the wind direction from being inadvertently changed due to a hand touching the blade accommodating portion.

Various changes can be made to the fans 1 and 50 of the first and second embodiments described above. The positions where the battery mounting portions 40 and 60 are provided are not limited to the rear surface side of the blade accommodating portion 14, and may be provided on the pedestal portion 20, for example. Regarding the support structure of the main body portion 10 by the main body support portion 13, for example, the support arm portion 13a may be provided in an annular shape so that the support arm portion 13a also serves as a hook 18 hooking function. The support position of the main body portion 10 by the support arm portion 13a may be changed from the position of the axis X. The arrangement position of the swing motor 31 may be changed to another position such as the front of the pedestal portion 20 or the right end portion. The hooking holes provided on the installation surface side of the pedestal portion 20 are not limited to the horizontal posture hooking holes 24 and the vertical posture hooking holes 25 exemplified in the examples, and the arrangement position, number, hole shape, etc. can be appropriately changed. .. The lock mechanism for restricting the rotation of the blade accommodating portion 14 with respect to the main body support portion 13 is not limited to the unlock button 62 that is unlocked by a push operation, and for example, a lock mechanism by a pull operation or a rotation operation can be appropriately used.

1 ... Fan 10 ... Main body 11 ... Fan motor, 11a ... Motor shaft 12 ... Blades, 12a ... Central part, 12b ... Wings 13 ... Main body support part, 13a ... Support arm part, 13b ... Vertical angle adjustment mechanism 13c ... Left and right Rotating part, 13d ... Position holding member, 13e ... Regulatory convex part (rotation regulating part)
14 ... Blade housing part, 14a ... Front guard, 14b ... Rear guard 14c ... Outer circumference guard, 14d ... Mesh part, 14e ... Outer circumference guard, 14f ... Mesh part 14g ... Radiation frame, 14h ... Circumferential frame, 14i ... Radiation frame, 14j ... Circumferential frame 16 ... Motor housing 18 ... Hook, 18a ... Arm part, 18b ... Connecting part, 18c ... Rotational support part 18d ... Curved part, 18e ... Hooking part 20 ... Pedestal part, 20a ... Base, 20b ... Leg part , 20c ... Pedestal recess 20d ... Left-right angle adjustment mechanism, 20f ... (Base) lower surface, 20g ... Through hole 20h ... Groove (rotation regulation part)
21 ... Operation unit, 21a ... Power switch, 21b ... Air volume switch 21c ... Timer switch, 21d ... Swing switch 22 ... Power connection port 23 ... Motor housing, 23a ... Extension part 24 ... Horizontal attitude hook hole, 24a ... Circular hole , 24b ... Long hole 25 ... Vertical posture hook hole, 25a ... Circular hole, 25b ... Long hole 26 ... Mounting hole 27 ... Rotating member, 27a ... Positioning part, 27b ... Recessed hole 28 ... Shaft member, 28a ... Positioning part 29 ... Position Holding member 30 ... Swing mechanism 31 ... Swing motor 31a ... Motor shaft, 31b ... Output shaft, 31c ... Crank, 31d ... Tip 32 ... Arm 33 ... Crank, 33a ... Projection 40 ... Battery mounting part, 40a ... Joint recess 41 ... Battery pack, 41a ... Claw part, 41b ... Detachment button 50 ... Fan 60 ... Battery mounting part, 60a ... Engagement recess, 60b ... Notch 61 ... Battery pack, 61a ... Claw part, 61b ... Detach button 62 ... Unlock button 63 ... Shaft member, 63a ... Positioning part, 63b ... Recessed part, 63c ... Convex part 64 ... Position holding member

Claims (7)

A battery mounting part to which a rechargeable battery pack can be attached and detached, a fan motor and a swing motor using the battery pack as a power source, blades rotated by the fan motor, and a main body part that rotatably supports the blades. A fan that is installed on the installation surface and has a pedestal that causes the main body to stand up against the installation surface.
The pedestal portion supports the main body portion via the main body support portion included in the main body portion.
The pedestal portion includes a pedestal recess accommodating the main body support portion and a swing mechanism for reciprocating the main body portion within a predetermined angle around a swing axis extending in a direction intersecting the installation surface.
The swing motor for driving the swing mechanism is housed in the pedestal portion in a state of overlapping with the main body support portion in the swing axis direction on the outside of the main body support portion when viewed from the swing axis direction. And a fan protruding above the upper end of the pedestal recess . The electric fan according to claim 1 .
The swing motor is a fan arranged outside the pedestal recess when viewed from the swing axis direction . The electric fan according to claim 1 or 2.
The installation surface is a wall surface, and the pedestal portion is provided with a plurality of hook holes that can be hooked on the convex member provided on the wall surface.
The pedestal portion can be hooked in the first posture by selecting one combination of the plurality of hook holes.
The pedestal portion can be hooked in the second posture by selecting another combination from the plurality of hook holes.
The blade can blow air into the first blowing range in the first posture, and the second blowing range and the second blowing range are rotated by 180 degrees around the swing axis in the second posture. A fan that can blow air into the third blowing range. The electric fan according to any one of claims 1 to 3.
The main body has a wind direction around a swing axis that intersects both the blade accommodating portion for accommodating the blade, the battery mounting portion provided in the blade accommodating portion, and both the swing shaft and the rotation shaft of the blade. Equipped with a wind direction change mechanism for changing
The wind direction changing mechanism is provided with a lock mechanism for locking the wind direction, and is a fan capable of swinging the blade accommodating portion around the swing shaft when the lock mechanism is unlocked. The electric fan according to any one of claims 1 to 4.
The power of the swing motor is transmitted to the main body support portion via an arm provided in the swing mechanism. The electric fan according to claim 5.
The arm has an arc shape, one end of which is connected to a crank coupled to the output shaft of the swing motor, and the other end of which is connected to a crank coupled to the main body support portion. The electric fan according to any one of claims 1 to 6.
A fan provided with a rotation restricting portion that regulates the rotation range of the reciprocating movement of the main body portion between the main body support portion and the pedestal portion.

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