JP2021173493A - Fan attachment/detachment device and range hood - Google Patents

Abstract

To provide a fan attachment/detachment device that facilitates attachment/detachment of a fan even when fastening of a member occurs, and a range hood.SOLUTION: A spinner 1 can be rotated around a rotating shaft 6b with respect to a fan member 4. A lever member 1a can be moved in a first direction D1. Engagement pieces 1 ga and 1 gb, which have female screw parts 1 ga1 and 1 gb1, are moved in a second direction D2, which is different from the first direction D1 and which is a radial direction centering on the rotating shaft 6b, according to the movement of the lever member 1a in the first direction D1. Thus, they are moved between a first position in which the female screw parts 1 ga1 and 1 gb1 and a male screw part 6d are meshed with each other, and a second position in which the female screw parts 1 ga1 and 1 gb1 and the male screw part 6d are unmeshed from each other.SELECTED DRAWING: Figure 5

Description

The present invention relates to a fan attachment / detachment device and a range hood.

Regarding the mounting structure of the fan in the range hood, conventionally, a range hood in which the fan can be attached and detached by one-touch operation is disclosed in Japanese Patent Application Laid-Open No. 2018-71869 (Patent Document 1).

In the one-touch removal operation described in Patent Document 1, first, the release knob provided on the outer peripheral portion of the fan boss is pushed toward the center side of the boss. As a result, the built-in lock claw is forcibly retracted in the disengagement direction against the engaging urging force. In this state, the exhaust fan is pulled downward to be pulled out from the rotating shaft and removed from the range hood.

JP-A-2018-71869

However, in the range hood described in Patent Document 1, it is conceivable that the members constituting the one-touch attachment / detachment mechanism are fixed to each other due to oil stains, rust, or the like. In this case, the one-touch attachment / detachment mechanism may not operate correctly and the exhaust fan may not be removed.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a fan attachment / detachment device and a range hood in which a fan can be easily attached / detached even if a member is stuck.

The fan attachment / detachment device of the present invention includes a fan member and a mounting adapter. The fan member can be attached to and detached from the rotating shaft of the drive source having the rotating shaft including the male screw portion. The mounting adapter is rotatable about a rotation axis with respect to the fan member. The mounting adapter has a lever member and an engaging piece. The lever member is movable in the first direction. The engaging piece has a female screw portion, and moves in a second direction, which is a radial direction centered on the rotation axis, in a direction different from the first direction as the lever member moves in the first direction. Moves between the first position where the female screw portion and the male screw portion mesh with each other and the second position where the female screw portion and the male screw portion are disengaged.

According to the fan attachment / detachment device of the present invention, when the lever member moves in the first direction, the engaging piece has a first position where the female screw portion and the male screw portion mesh with each other, and the female screw portion and the male screw portion. Moves to and from the second position where the meshing is disengaged. Therefore, by operating the lever member to move the engaging piece to the first position, the mounting adapter can be attached / detached to / from the male screw portion of the rotating shaft by screwing. Further, by operating the lever member to move the engaging piece to the second position, the mounting adapter is attached to and detached from the rotating shaft in a state where the male screw portion of the rotating shaft and the female screw portion of the engaging piece are disengaged. It becomes possible. In this way, it is possible to achieve both attachment / detachment by screwing and attachment / detachment in a state where the meshing by screwing is released.

Further, even when the lever member cannot be operated due to sticking to other members due to oil stains, rust, etc., the mounting adapter can be attached / detached to / from the rotating shaft by screwing without operating the lever member. Therefore, even if sticking due to oil stains, rust, etc. occurs, the fan member can be easily attached and detached.

Further, the mounting adapter can rotate about the rotation axis with respect to the fan member. Therefore, if the mounting adapter is rotated with respect to the rotating shaft, the fan member can be attached to and detached from the rotating shaft by screwing without rotating the entire fan member.

Further, the engaging piece moves between the first position and the second position by moving in the second direction which is the radial direction about the rotation axis. This facilitates the engagement between the female threaded portion of the engaging piece and the male threaded portion of the rotating shaft.

In the fan attachment / detachment device, the mounting adapter further includes a lever urging member that urges the lever member in the first direction so that the engaging piece is in the first position.

As a result, the engaging piece is in the first position, and the mounting adapter and the fan member can be screwed onto the rotating shaft.

In the fan attachment / detachment device, the mounting adapter further includes an actuating member that locks the lever member so that the engaging piece maintains a second position.

As a result, the engaging piece can be held at the second position, and the male screw portion of the rotating shaft can be inserted to a position facing the female screw portion of the engaging piece without being screwed. After that, by moving the lever member in the first direction and engaging the female screw portion of the engaging piece with the male screw portion of the rotating shaft, the mounting adapter and the fan member can be attached to the rotating shaft with one touch.

In the fan attachment / detachment device, the mounting adapter further includes an actuating urging member that urges the actuating member toward the lever member. When the operating member moves against the urging force of the urging member for operation, the lock of the lever member by the operating member is released, and the lever member moves by the urging force of the urging member for lever, so that the engaging piece Moves to the first position.

As a result, the lock of the lever member by the operating member can be released by a simple operation of moving the operating member against the urging force of the operating urging member, and the female screw portion meshes with the male screw portion. It becomes possible.

The range hood of the present invention includes a drive source, a fan member, and a mounting adapter. The drive source has a rotating shaft including a male screw portion. The fan member is removable from the rotating shaft of the drive source. The mounting adapter is rotatable about a rotation axis with respect to the fan member. The mounting adapter has a lever member and an engaging piece. The lever member is movable in the first direction. The engaging piece has a female screw portion, and moves in a second direction, which is a radial direction centered on the rotation axis, in a direction different from the first direction as the lever member moves in the first direction. Moves between the first position where the female screw portion and the male screw portion mesh with each other and the second position where the female screw portion and the male screw portion are disengaged.

According to the range hood of the present invention, when the lever member moves in the first direction, the engaging piece has a first position where the female screw portion and the male screw portion mesh with each other, and the female screw portion and the male screw portion. It moves to and from the second position where the meshing is released. Therefore, by operating the lever member to move the engaging piece to the first position, the mounting adapter can be attached / detached to / from the male screw portion of the rotating shaft by screwing. Further, by operating the lever member to move the engaging piece to the second position, the mounting adapter is attached to and detached from the rotating shaft in a state where the male screw portion of the rotating shaft and the female screw portion of the engaging piece are disengaged. It becomes possible. In this way, it is possible to achieve both attachment / detachment by screwing and attachment / detachment in a state where the meshing by screwing is released.

Further, even if the lever member cannot be operated because the lever member is stuck to another member due to oil stains, rust, etc., the mounting adapter can be attached / detached to / from the rotating shaft by screwing without operating the lever member. .. Therefore, even if sticking due to oil stains, rust, etc. occurs, the fan member can be easily attached and detached.

Further, the mounting adapter can rotate about the rotation axis with respect to the fan member. Therefore, if the mounting adapter is rotated with respect to the rotating shaft, the fan member can be attached to and detached from the rotating shaft by screwing without rotating the entire fan member.

Further, the engaging piece moves between the first position and the second position by moving in the second direction which is the radial direction about the rotation axis. This facilitates the engagement between the female threaded portion of the engaging piece and the male threaded portion of the rotating shaft.

As described above, according to the present invention, it is possible to realize a fan attachment / detachment device and a range hood in which the fan can be easily attached / detached even if the members are stuck.

It is a perspective view which shows the structure of the range hood in one Embodiment of this invention. It is sectional drawing which shows the structure of the range hood of FIG. It is a perspective view which shows the structure of the vicinity of a spinner in the range hood of FIG. It is an exploded perspective view which shows the structure of a part of the range hood of FIG. It is a perspective view which shows the structure of the lever member, the engaging piece and the lever urging member in the range hood of FIG. It is sectional drawing along the VI-VI line of FIG. It is sectional drawing along the line VII-VII of FIG. FIG. 6 is a cross-sectional view taken along the line VIII-VIII of FIG. It is sectional drawing corresponding to the VI-VI line of FIG. It is sectional drawing corresponding to the line VII-VII of FIG. 9 is a cross-sectional view taken along the line XI-XI of FIG. It is sectional drawing corresponding to the VI-VI line of FIG. 3 which shows the state which the engaging piece is locked in the 2nd position. It is sectional drawing corresponding to VII-VII line of FIG. 3 which shows the state which the engaging piece was locked in the 2nd position.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In addition, in the specification and the drawing, the same component or the corresponding component is designated by the same reference numeral, and duplicate description will not be repeated. Further, in the drawings, the configuration may be omitted or simplified for convenience of explanation.

<Composition of range hood>
First, the configuration of the range hood according to the embodiment of the present invention will be described with reference to FIGS. 1 and 2.

As shown in FIG. 1, the range hood 10 in the present embodiment is arranged above, for example, a stove (not shown). The range hood 10 includes a main body housing 11, a hood case 12, a straightening vane 13, an interior panel 14, and the like.

The main body housing 11 has a box shape. A spinner 1 (mounting adapter), a fan member 4, and the like are arranged inside the main body housing 11. A hood case 12 is connected to the lower end of the main body housing 11. An opening is provided at the lower end of the hood case 12.

A straightening vane 13 and an interior panel 14 are mounted inside the opening of the hood case 12. The gap between the straightening vane 13 and the interior panel 14 leads to the internal space 11a (FIG. 2) of the main body housing 11.

As shown in FIG. 2, a spinner 1, a fan member 4, a motor 6, a fan casing 8, and the like are arranged in the internal space 11a of the main body housing 11.

A suction port 8a is provided on the bottom surface of the fan casing 8. The internal space 8b of the fan casing 8 communicates with the gap 15 between the straightening vane 13 and the interior panel 14 through the suction port 8a. Further, the fan casing 8 is connected to an exhaust duct (not shown) extending to the outside of the main body housing 11.

The fan member 4 is arranged in the internal space 8b of the fan casing 8 and above the suction port 8a. The fan member 4 has a base member 2 and an exhaust fan 3.

The exhaust fan 3 is, for example, a sirocco fan. The exhaust fan 3 has a plurality of fan blades 3a, an upper support plate 3b, and a lower support plate 3c. The plurality of fan blades 3a are arranged at a constant pitch in the circumferential direction. The upper support plate 3b supports the upper ends of each of the plurality of fan blades 3a. The lower support plate 3c supports the lower ends of each of the plurality of fan blades 3a. Each of the upper support plate 3b and the lower support plate 3c has an annular shape.

The base member 2 is fixed to the center of the ring shape of the upper support plate 3b. The base member 2 is attached to the upper support plate 3b by, for example, a bolt.

The motor 6 is, for example, an AC (Alternating Current) motor. The motor 6 has a motor body 6a, a rotating shaft 6b, and a protruding portion 6c. The motor body 6a is fixed to the body housing 11. A part of the motor body 6a is arranged in the internal space 8b of the fan casing 8. The rotating shaft 6b extends downward from the lower end of the motor body 6a in the internal space 8b of the fan casing 8. The protruding portion 6c protrudes outward in the radial direction of the rotating shaft 6b from the outer peripheral surface of the rotating shaft 6b.

A fan member 4 is attached to the rotating shaft 6b of the motor 6. The base member 2 included in the fan member 4 has a fitting portion 2d that fits into the rotating shaft 6b of the motor 6. By fitting the fitting portion 2d of the fan member 4 to the protruding portion 6c of the motor 6, the fan member 4 is attached so as not to rotate relative to the rotating shaft 6b.

The spinner 1 can be attached to and detached from the rotating shaft 6b of the motor 6 by screwing. Further, the spinner 1 can be attached to and detached from the rotating shaft 6b of the motor 6 by a one-touch operation. By attaching / detaching the spinner 1 to / from the rotating shaft 6b, the fan member 4 can be attached / detached to / from the rotating shaft 6b together with the spinner 1.

<Structure of spinner, fan member and motor>
Next, the detailed configurations of the spinner 1, the fan member 4 (base member 2, exhaust fan 3) and the motor 6 will be described with reference to FIGS. 3 to 8.

As shown in FIG. 3, the spinner 1 is arranged below the upper support plate 3b of the exhaust fan 3. The spinner 1 is for attaching / detaching the fan member 4 shown in FIG. 2 to / from the rotating shaft 6b of the motor 6.

As shown in FIG. 4, the base member 2 included in the fan member 4 has a cylindrical portion 2a, an annular portion 2b, a flange portion 2c, a fitting portion 2d, and a through hole 2e. ..

The cylindrical portion 2a has a cylindrical shape. The annular portion 2b projects outward from the entire circumference of the outer peripheral surface of the cylindrical portion 2a at the lower end of the cylindrical portion 2a. The annular portion 2b is a portion fixed to the upper support plate 3b of the exhaust fan 3 by a fixing member such as a bolt.

The flange portion 2c projects outward from the entire circumference of the outer peripheral surface of the annular portion 2b at the lower end of the annular portion 2b. The flange portion 2c is a portion that comes into contact with the inward overhanging portion 1hb of the pressing member 1h, which will be described later.

The fitting portion 2d is provided at the upper end of the cylindrical portion 2a. The fitting portion 2d is composed of a plurality of convex portions and a plurality of concave portions. Each of the plurality of convex portions protrudes upward from the upper end of the cylindrical portion 2a. Each of the plurality of recesses is a portion recessed downward from the upper end of the convex portion. The plurality of convex portions and the plurality of concave portions are arranged so that the convex portions and the concave portions are alternately arranged in the circumferential direction. This recess is a portion into which the protruding portion 6c protruding from the rotating shaft 6b is fitted. In the present embodiment, for example, four convex portions and four concave portions are arranged in the circumferential direction.

The through hole 2e penetrates the base member 2. The through hole 2e is configured so that the rotating shaft 6b of the motor 6 can be inserted through the through hole 2e.

The spinner 1 includes a lever member 1a, a lever urging member 1b, an operating member 1c, an operating urging member 1d, a spinner body 1e, a cover member 1f, an engaging piece 1ga, 1gb, and a pressing member. It has 1h.

The spinner body 1e has, for example, a bowl shape in which the entire circumference of a circular edge is bent in the same direction.

As shown in FIG. 5, the lever member 1a includes a lever body 1aa, a bottom portion 1ab, an urging member holding portion 1ac, and a pair of guide portions 1ad and 1ae. The lever body 1aa is a portion operated by an operator who attaches / detaches the spinner 1 and the fan member 4 to / from the range hood 10 during the attachment / detachment operation. The lever body 1aa has an operation unit OP at the tip for the operator to operate the lever body 1aa. The operation unit OP is a portion bent downward at the tip of the lever body 1aa.

Each of the pair of guide portions 1ad and 1ae is connected to the lever body 1aa. The urging member holding portion 1ac is connected to each of the pair of guide portions 1ad and 1ae on the opposite side of the lever body 1aa with respect to the pair of guide portions 1ad and 1ae.

A pair of guide portions 1ad and 1ae face each other. The distance between the pair of guide portions 1ad and 1ae is different between the position close to the urging member holding portion 1ac and the position close to the lever body 1aa. For example, the distance LA between the pair of guide portions 1ad and 1ae at a position close to the urging member holding portion 1ac is smaller than the distance LB between the pair of guide portions 1ad and 1ae at a position close to the lever body 1aa.

The bottom portion 1ab is connected to the lower ends of both of the pair of guide portions 1ad and 1ae. The bottom portion 1ab has a through hole 1af. The through hole 1af is sandwiched between a pair of guide portions 1ad and 1ae.

As shown in FIG. 4, the through hole 1af has a large-diameter portion ha and a small-diameter portion hb. The large diameter portion ha and the small diameter portion hb are connected to each other. The large diameter portion ha is located on the lever body 1aa side of the small diameter portion hb, and the small diameter portion hb is located on the urging member holding portion 1ac side of the large diameter portion ha.

The lever urging member 1b is, for example, a spring. The lever urging member 1b is attached to the urging member holding portion 1ac of the lever member 1a.

The operating member 1c has a main body portion 1ca, a protrusion portion 1cc, and a flange portion 1cc. The main body 1ca has a cylindrical shape. The protrusion 1 cc extends upward from the upper end of the main body 1 ca. The protrusion 1 kb has a cylindrical shape.

The protrusion 1 cc is thinner than the main body 1 cab. Specifically, the diameter of the cylinder of the protrusion 1 cab is smaller than the outer diameter of the cylinder of the main body 1 ca. The flange portion 1cc projects outward from the outer peripheral surface of the main body portion 1ca at the lower end portion of the main body portion 1ca.

The protrusion 1cc can be inserted into the small diameter portion hb of the through hole 1af, and each of the main body portion 1ca and the flange portion 1cc cannot be inserted into the small diameter portion hb. That is, the diameter of the cylinder of the protrusion 1 cc is smaller than the hole diameter of the small diameter portion hb, and each of the outer diameter of the cylinder of the main body portion and the outer diameter of the flange portion 1 cc is larger than the hole diameter of the small diameter portion hb.

Further, each of the protrusion 1cc and the main body 1ca can be inserted into the large diameter portion ha of the through hole 1af, and the flange portion 1cc cannot be inserted into the large diameter portion ha. That is, each of the diameter of the cylinder of the protrusion 1cc and the outer diameter of the cylinder of the main body 1ca is smaller than the hole diameter of the large diameter portion ha, and the outer diameter of the flange portion 1cc is larger than the hole diameter of the large diameter portion ha.

The actuating urging member 1d urges the actuating member 1c toward the lever member 1a. One end of the actuating urging member 1d is arranged inside the main body 1ca of the actuating member 1c. The other end of the actuating urging member 1d is in contact with the spinner body 1e. The actuating urging member 1d is, for example, a spring.

As shown in FIG. 5, each of the pair of engaging pieces 1ga and 1gb has, for example, a substantially inverted U shape. The engaging piece 1ga is arranged so as to straddle the guide portion 1ad of the lever member 1a. Further, the engaging piece 1gb is arranged so as to straddle the guide portion 1ae of the lever member 1a.

The lever member 1a can move in the first direction D1 relative to the engaging pieces 1ga and 1gb. By moving the lever member 1a in the first direction D1, each of the engaging pieces 1ga and 1gb can move in the second direction D2 relative to the lever member 1a.

Specifically, when the lever member 1a moves in the first direction D1 with respect to the engaging piece 1ga and 1gb, the engaging piece 1ga moves in the second direction D2 along the guide portion 1ad and the engaging piece 1gb. Moves in the second direction D2 along the guide portion 1ae. That is, each of the guide portions 1ad and 1ae guides the movement of the engaging pieces 1ga and 1gb in the second direction.

As a result, the distance between the pair of engaging pieces 1ga and 1gb is such that the pair of engaging pieces 1ga and 1gb are arranged at a position (first position) close to the urging member holding portion 1ac and the lever. It is different from the state where it is arranged at a position (second position) close to the main body 1aa. For example, the distance between the engaging pieces 1ga and 1gb is small when the engaging pieces 1ga and 1gb are arranged in the first position, and large when the engaging pieces 1ga and 1gb are arranged in the second position.

The first direction D1 is a direction in which the lever body 1aa and the urging member holding portion 1ac face each other. Further, the second direction D2 is a direction in which a pair of engaging pieces 1ga and 1gb face each other. The first direction D1 and the second direction D2 are different directions, for example, directions orthogonal to each other.

Further, as described later, when the fan member 4 is attached to the rotating shaft 6b of the motor 6 by the spinner 1, each of the first direction D1 and the second direction D2 is in the radial direction centered on the rotating shaft 6b.

The engaging piece 1ga has a female screw portion 1ga1 at a portion facing the engaging piece 1gb. Further, the engaging piece 1gb has a female screw portion 1gb1 at a portion facing the engaging piece 1ga. The female screw portion 1ga1 and the female screw portion 1gb1 face each other in the second direction D2.

Here, in a state where a pair of engaging pieces 1ga and 1gb are arranged at the first position as shown in FIG. 8, each of the female screw portions 1ga1 and 1gb1 and the male screw portion 6d of the rotating shaft 6b mesh with each other. .. Further, as shown in FIG. 11, when a pair of engaging pieces 1ga and 1gb are arranged at the second position, the meshing between each of the female screw portions 1ga1 and 1gb1 and the male screw portion 6d of the rotating shaft 6b is released. Has been done.

As shown in FIG. 4, the cover member 1f has a cover portion main body 1fa, a through hole 1fb, a lever guide portion 1fc, and an engaging piece guide portion 1fd. The cover portion main body 1fa is a portion attached to each of the spinner main body 1e and the pressing member 1h, and has a flat plate shape. The through hole 1fb is provided in the center of the cover portion main body 1fa. The through hole 1fb is configured so that the rotating shaft 6b of the motor 6 can be inserted through the through hole 1fb.

Each of the lever guide portion 1fc and the engaging piece guide portion 1fd is arranged so as to protrude downward from the lower surface of the cover portion main body 1fa. The lever guide portion 1fc extends along the first direction D1. The lever guide portion 1fc has a pair of first projecting pieces facing each other in the second direction. The lever member 1a is arranged in a region sandwiched between a pair of first projecting pieces. As a result, the movement of the lever member 1a in the first direction D1 is guided by a pair of first projecting pieces in the lever guide portion 1fc.

The engaging piece guide portion 1fd extends along the second direction D2. The engaging piece guide portion 1fd has a pair of second projecting pieces facing each other in the first direction. Each of the engaging pieces 1ga and 1gb is arranged in a region sandwiched between a pair of second projecting pieces. As a result, the movement of the engaging pieces 1ga and 1gb in the second direction D2 is guided by a pair of second projecting pieces in the engaging piece guide portion 1fd.

The pressing member 1h has an annular shape and has a through hole 1hc in the center. The cylindrical portion 2a and the annular portion 2b of the base member 2 can be inserted into the through hole 1hc, and the flange portion 2c cannot be inserted. Specifically, the diameter of the through hole 1hc is larger than the diameter of the annular portion 2b and smaller than the diameter of the flange portion 2c.

The pressing member 1h has a main body 1ha and an inward overhanging portion 1hb. The main body 1ha has an annular shape. The inward overhanging portion 1hb projects from the inner peripheral surface of the main body 1ha to the inner peripheral side at the upper end of the main body 1ha.

The inner peripheral end of the inward overhanging portion 1hb constitutes the through hole 1hc. Therefore, the inner diameter of the inward overhanging portion 1hb is equal to the diameter of the through hole 1hc. The inner diameter of the main body 1ha is smaller than the outer diameter of the flange portion 2c of the base member 2.

6 to 8 show a state in which the fan member 4 is attached to the rotating shaft 6b of the motor 6 by the spinner 1, and the male screw portion 6d of the rotating shaft 6b and the engaging piece 1ga and the female screw portion 1ga1 of 1gb are shown. It shows a state in which 1 gb1 and 1 gb1 are in mesh with each other.

As shown in FIG. 6, when the fan member 4 is attached to the rotating shaft 6b of the motor 6, the cylindrical portion 2a of the base member 2 is inserted into the through hole 3ba of the upper support plate 3b. A rotation shaft 6b is inserted into the through hole 2e of the base member 2. Further, the protruding portion 6c protruding toward the outer peripheral side of the rotating shaft 6b is fitted to the fitting portion 2d of the base member 2. As a result, the base member 2 is attached so as not to rotate relative to the rotating shaft 6b.

Further, the upper support plate 3b of the exhaust fan 3 is fixed to the annular portion 2b of the base member 2 by a fixing member (not shown) such as a bolt. As a result, when the rotating shaft 6b rotates, both the base member 2 and the exhaust fan 3 rotate together with the rotating shaft 6b.

The annular portion 2b of the base member 2 is inserted through the through hole 1hc of the pressing member 1h. As a result, the lower surface of the inward overhanging portion 1hb of the pressing member 1h and the upper surface of the flange portion 2c of the base member 2 are in contact with each other. As a result, the pressing member 1h can rotate relative to the fan member 4 (base member 2, exhaust fan 3) about the rotation shaft 6b.

The main body 1ha of the pressing member 1h is attached to the spinner main body 1e by a fixing member (not shown) such as a bolt. A cover member 1f is sandwiched between the pressing member 1h and the spinner main body 1e.

In the space between the spinner body 1e and the cover member 1f, a lever member 1a, a lever urging member 1b, an operating member 1c, an operating urging member 1d, and a pair of engaging pieces 1ga and 1gb (FIG. 7). ) Is placed.

As described above, the spinner 1 can rotate relative to the fan member 4 (base member 2, exhaust fan 3) about the rotation shaft 6b.

The lever member 1a can slide in the first direction D1 between the first slide position shown in FIG. 6 and the second slide position shown in FIG.

As shown in FIG. 6, the operation unit OP of the lever member 1a arranged at the first slide position is more of the spinner body 1e than the operation unit OP (FIG. 9) of the lever member 1a arranged at the second slide position. It sticks out. The lever member 1a is urged by the lever urging member 1b to the side where the operation unit OP protrudes from the spinner main body 1e (right side in the drawing).

The operating member 1c is located below the lever member 1a. The operating member 1c is urged toward the lever member 1a by the operating urging member 1d. The protrusion 1cc of the operating member 1c is inserted into the small diameter portion hb of the through hole 1af.

As shown in FIG. 8, in this state, each of the pair of engaging pieces 1ga and 1gb is arranged at the first position (position close to the urging member holding portion 1ac). The distance LA between the pair of guide portions 1ad and 1ae at a position close to the urging member holding portion 1ac is smaller than the distance LB between the pair of guide portions 1ad and 1ae at a position close to the lever body 1aa. Therefore, the pair of engaging pieces 1ga and 1gb are arranged at positions close to each other.

As shown in FIG. 7, when the pair of engaging pieces 1ga and 1gb approach each other, the female screw portions 1ga1 and 1gb1 of the pair of engaging pieces 1ga and 1gb are the male screw portions 6d of the rotating shaft 6b. Is in mesh with.

<Assembly method of spinner and fan member>
Next, a method of assembling the spinner 1 and the fan member 4 will be described with reference to FIG.

As shown in FIG. 4, a lever member 1a, an operating member 1c, an urging member 1b, 1d, and a pair of engaging pieces 1ga and 1gb are arranged inside the spinner main body 1e.

Specifically, the actuating urging member 1d is arranged inside the spinner main body 1e. The actuating member 1c is assembled so that the actuating member 1c is urged upward with respect to the spinner body 1e by the actuating urging member 1d. The lever member 1a is arranged on the operating member 1c. At this time, the operation unit OP of the lever member 1a is positioned outside the spinner main body 1e.

The lever member 1a is assembled so that the operating portion OP is urged by the lever urging member 1b in a direction of protruding to the outside of the spinner main body 1e. The engaging piece 1ga is arranged so as to straddle the guide portion 1ad of the lever member 1a. Further, the engaging piece 1gb is arranged so as to straddle the guide portion 1ae of the lever member 1a.

The cover member 1f is arranged so as to cover the lever member 1a and the engaging pieces 1ga and 1gb. At this time, the lever member 1a is arranged between the pair of first projecting pieces constituting the lever guide portion 1fc of the cover member 1f. Further, each of the engaging pieces 1ga and 1gb is arranged between the pair of second projecting pieces constituting the engaging piece guide portion 1fd of the cover member 1f.

In this state, the base member 2 is arranged on the cover member 1f. The cylindrical portion 2a and the annular portion 2b of the base member 2 are inserted into the through hole 1hc of the pressing member 1h. As a result, the lower surface of the inward overhanging portion 1hb of the pressing member 1h and the upper surface of the flange portion 2c of the base member 2 come into contact with each other. With the base member 2 inserted through the through hole 1hc of the pressing member 1h, the main body 1ha of the pressing member 1h is fixed to the spinner main body 1e by a fixing member such as a bolt.

As a result, the spinner 1 including the lever member 1a, the operating member 1c, the urging member 1b, 1d, the spinner main body 1e, the cover member 1f, the engaging pieces 1ga, 1gb, and the pressing member 1h is assembled.

The flange portion 2c of the base member 2 is sandwiched between the cover member 1f and the pressing member 1h. This prevents the base member 2 from falling out of the spinner 1. Further, since the spinner 1 is not fixed to the base member 2, it can rotate relative to the base member 2.

After that, the cylindrical portion 2a of the base member 2 is inserted into the through hole 3ba of the upper support plate 3b. With the cylindrical portion 2a inserted through the through hole 3ba, the upper support plate 3b is fixed to the annular portion 2b of the base member 2 by a fixing member such as a bolt. As a result, the base member 2 is attached to the upper support plate 3b so as not to rotate relative to the upper support plate 3b.

As described above, the spinner 1 and the fan member 4 are assembled.
Note that in FIG. 4, only the upper support plate 3b of the exhaust fan 3 is shown, and the plurality of fan blades 3a and the lower support plate 3c are not shown. Is assembled with a plurality of fan blades 3a and a lower support plate 3c.

<How to attach the assembly of spinner and fan member to the range hood>
Next, a method of attaching the assembly of the spinner 1 and the fan member 4 assembled as described above to the range hood 10 will be described with reference to FIGS. 6 to 11 and the like.

First, a method of screwing the assembly of the spinner 1 and the fan member 4 onto the rotating shaft 6b of the motor 6 will be described with reference to FIGS. 6 to 8.

Mounting by screwing is performed in a state where the lever member 1a is in the first slide position as shown in FIG. In this state, the lever member 1a is urged by the lever urging member 1b, so that the operating portion OP of the lever member 1a protrudes greatly to the outside of the spinner main body 1e.

When the lever member 1a is in the first slide position, each of the pair of engaging pieces 1ga and 1gb is arranged in the first position as shown in FIG. The pair of engaging pieces 1ga and 1gb arranged in the first position are arranged closer to each other than the pair of engaging pieces 1ga and 1gb arranged in the second position.

In the above state, as shown in FIG. 7, the rotating shaft 6b of the motor 6 is inserted into the through hole 2e of the base member 2. From the time when the tip of the rotating shaft 6b reaches the pair of engaging pieces 1ga and 1gb, the spinner 1 is rotated relative to the rotating shaft 6b. By this rotation, the female screw portions 1ga1 and 1gb1 of the engaging pieces 1ga and 1gb are screwed into the male screw portion 6d of the rotating shaft 6b. As a result, the assembly of the spinner 1 and the fan member 4 can be screwed onto the rotating shaft 6b of the motor 6.

When the spinner 1 and the fan member 4 are screwed off from the rotating shaft 6b, the spinner 1 is rotated relative to the base member 2 and the rotating shaft 6b from the state shown in FIG. 7. The spinner 1 is rotated with respect to the rotating shaft 6b until the screwed state between the female screw portions 1ga1 and 1gb1 of the engaging pieces 1ga and 1gb and the male screw portion 6d of the rotating shaft 6b is released. As a result, the spinner 1 and the fan member 4 are removed from the rotating shaft 6b.

Next, a method of attaching the assembly of the spinner 1 and the fan member 4 to the rotating shaft 6b of the motor 6 with one touch will be described with reference to FIGS. 9 to 13.

The one-touch mounting is performed in a state where the lever member 1a is in the second slide position as shown in FIG. In this state, the lever member 1a is pushed into the spinner main body 1e against the urging force of the lever urging member 1b. Therefore, the amount of protrusion of the operation unit OP from the spinner main body 1e is smaller than that shown in FIG.

In the state where the lever member 1a is in the second slide position, each of the pair of engaging pieces 1ga and 1gb is arranged in the second position as shown in FIG. The pair of engaging pieces 1ga and 1gb arranged at the second position are arranged at positions farther from each other than the pair of engaging pieces 1ga and 1gb (FIG. 8) arranged at the first position.

In the above state, as shown in FIG. 13, the operating member 1c is urged toward the lever member 1a by the urging force of the operating urging member 1d. Due to this urging force, the main body portion 1ca of the operating member 1c is inserted into the large diameter portion ha of the through hole 1af in the lever member 1a. As a result, the operating member 1c maintains the lever member 1a at the second slide position against the urging force of the lever urging member 1b. That is, the operating member 1c locks the lever member 1a to the second slide position so that the pair of engaging pieces 1ga and 1gb are in the second position.

In the above state, as shown in FIG. 9, the assembly of the spinner 1 and the fan member 4 is attached to the range hood. Specifically, the motor 6 is placed in the through hole 2e of the base member 2 in a state where the lever member 1a is locked at the second slide position and each of the pair of engaging pieces 1ga and 1gb is arranged at the second position. The rotation shaft 6b of the above is inserted. As a result, the male threaded portion 6d of the rotating shaft 6b is inserted between the female threaded portion 1ga1 of the engaging piece 1ga and the female threaded portion 1gb1 of the engaging piece 1gb.

At this time, each of the pair of engaging pieces 1ga and 1gb is arranged at the second position and is farther from each other than the state where they are arranged at the first position. Therefore, as shown in FIG. 11, the distance between the female screw portion 1ga1 and the female screw portion 1gb1 is larger than the outer diameter of the male screw portion 6d. Therefore, the male screw portion 6d can be inserted between the female screw portions 1ga1 and 1gb1.

By inserting the rotating shaft 6b between the female screw portions 1ga1 and 1gb1, the rotating shaft 6b pushes the operating member 1c downward against the urging force of the operating urging member 1d as shown in FIG. When the operating member 1c is pushed downward, the main body 1ca of the operating member 1c comes out of the large diameter portion ha of the through hole 1af. As a result, the operating member 1c unlocks the lever member 1a at the second slide position.

As a result, as shown in FIG. 6, the lever member 1a slides in the direction in which the operation unit OP protrudes to the outside of the spinner main body 1e (right side in the drawing) due to the urging force of the lever urging member 1b. That is, the lever member 1a moves from the second slide position shown in FIG. 9 to the first slide position shown in FIG.

By moving the lever member 1a to the first slide position as described above, as shown in FIG. 8, each of the pair of engaging pieces 1ga and 1gb is from the second position (FIG. 11) to the first position. Move to. By arranging each of the pair of engaging pieces 1ga and 1gb in the first position, they are closer to each other than in the state where they are arranged in the second position.

As a result, as shown in FIG. 7, each of the female threaded portions 1ga1 and 1gb1 meshes with the male threaded portion 6d. Further, the meshing state of each of the female screw portions 1ga1 and 1gb1 and the male screw portion 6d is maintained by the urging force of the lever urging member 1b. As a result, the spinner 1 and the fan member 4 are fixed to the rotating shaft 6b of the motor 6 by a one-touch operation without tightening the screw portion.

The spinner 1 is attached so as to be rotatable relative to the base member 2. Therefore, in the state where the assembly of the spinner 1 and the fan member 4 is attached to the rotating shaft 6b as described above, the spinner 1 can be rotated relative to the base member 2 and the rotating shaft 6b. As a result, the meshing between the female screw portions 1ga1 and 1gb1 of the engaging pieces 1ga and 1gb and the male screw portion 6d of the rotating shaft 6b may be further tightened.

Further, the protruding portion 6c protruding from the rotating shaft 6b and the fitting portion 2d of the fan member 4 are fitted to each other, so that the fan member 4 is attached so as not to rotate relative to the rotating shaft 6b. Therefore, when the rotating shaft 6b receives a driving force from the motor body 6a and rotates, the fan member 4 rotates together with the rotating shaft 6b.

When the spinner 1 and the fan member 4 are removed from the rotating shaft 6b by a one-touch operation, the operating portion OP of the lever member 1a is operated so as to be pushed into the spinner main body 1e from the state shown in FIG. By this pushing operation, as shown in FIG. 9, the lever member 1a slides to the lever urging member 1b side (left side in the drawing). That is, the lever member 1a moves from the first slide position shown in FIG. 6 to the second slide position shown in FIG.

As a result, the meshing state between the female screw portions 1ga1 and 1gb1 of the engaging pieces 1ga and 1gb and the male screw portion 6d of the rotating shaft 6b is released. Therefore, the spinner 1 and the fan member 4 are pulled out from the rotating shaft 6b while sliding the spinner 1 so as to push in the operating portion OP of the lever member 1a without rotating the spinner 1 relative to the base member 2 and the rotating shaft 6b. The spinner 1 and the fan member 4 can be removed from the rotating shaft 6b by the one-touch operation.

<Effect>
Next, the effects of the spinner 1 (mounting adapter) and the range hood 10 in the present embodiment will be described.

According to this embodiment, the lever member 1a moves in the first direction D1 as shown in FIG. As a result, the engaging pieces 1ga and 1gb are at the first position where the female screw portions 1ga1 and 1gb1 and the male screw portion 6d mesh with each other as shown in FIG. 7, and the female screw portions 1ga1 and 1gb1 as shown in FIG. And the second position where the meshing with the male screw portion 6d is released. Therefore, by operating the lever member 1a to move the engaging pieces 1ga and 1gb to the first position shown in FIG. 7, the spinner 1 can be attached to and detached from the male screw portion 6d of the rotating shaft 6b by screwing. It becomes. Further, by operating the lever member 1a to move the engaging pieces 1ga and 1gb to the second position shown in FIG. 10, the male screw portion 6d of the rotating shaft 6b and the female screw portion 1ga1 of the engaging piece 1ga and 1gb, The spinner 1 can be attached to and detached from the rotating shaft 6b in a state where the engagement with 1 gb 1 is released. In this way, it is possible to achieve both attachment / detachment by screwing and attachment / detachment in a state where the meshing by screwing is released (one-touch attachment / detachment).

Further, even if the lever member 1a cannot be operated because the lever member 1a is fixed to another member due to oil stains, rust, etc., the spinner 1 is attached to and detached from the rotating shaft 6b by screwing without operating the lever member 1a. can do. Therefore, the fan member 4 can be easily attached and detached even if sticking due to oil stains, rust, or the like occurs.

Further, the spinner 1 can rotate about the rotation shaft 6b with respect to the fan member 4. Therefore, if the spinner 1 is rotated with respect to the rotating shaft 6b, the fan member 4 can be attached to and detached from the rotating shaft 6b by screwing without rotating the entire fan member 4. As a result, as shown in FIG. 7, the spinner 1 is rotated relative to the base member 2 and the rotating shaft 6b in a state where the assembly of the spinner 1 and the fan member 4 is attached to the rotating shaft 6b with one touch. be able to. Therefore, it is possible to further tighten the engagement between the female screw portions 1ga1 and 1gb1 of the engaging pieces 1ga and 1gb and the male screw portion 6d of the rotating shaft 6b.

Further, each of the engaging pieces 1ga and 1gb moves in the second direction D2, which is the radial direction centered on the rotation shaft 6b, so that the first position (FIGS. 7 and 8) and the second position (FIG. 10, FIG. Move to and from FIG. 11). This facilitates meshing between the female screw portions 1ga1 and 1gb1 of the engaging pieces 1ga and 1gb and the male screw portion 6d of the rotating shaft 6b.

Further, in the present embodiment, as shown in FIG. 6, the spinner 1 is a lever urging member that urges the lever member 1a in the first direction D1 so that the engaging pieces 1ga and 1gb are in the first position. Has 1b. As a result, the engaging pieces 1ga and 1gb are in the first position, and the spinner 1 and the fan member 4 can be screwed to the rotating shaft 6b by the above screwing.

Further, in the present embodiment, as shown in FIG. 6, the spinner 1 has an operating member 1c that locks the lever member 1a so that the engaging pieces 1ga and 1gb maintain the second position. As a result, the engaging pieces 1ga and 1gb can be held in the second position, and as shown in FIG. 11, the distance between the female screw portions 1ga1 and 1gb1 becomes larger than the outer diameter of the male screw portion 6d. Therefore, the male screw portion 6d can be inserted between the female screw portions 1ga1 and 1gb1. Therefore, the spinner 1 and the fan member 4 can be attached to the rotating shaft 6b with one touch.

Further, in the present embodiment, the operating member 1c locks the lever member 1a by the operating member 1c by moving from the state shown in FIG. 12 to the state shown in FIG. 6 against the urging force of the operating urging member 1d. Is released, and the lever member 1a moves by the urging force of the lever urging member 1b, so that the engaging pieces 1ga and 1gb move to the first position shown in FIG. As a result, the female screw portions 1ga1 and 1gb1 can be meshed with the male screw portion 6d by a simple operation of moving the operating member 1c against the urging force of the operating urging member 1d.

In the above embodiment, the motor 6 has been described as a drive source for rotating the exhaust fan 3, but the drive source is not limited to the motor 6, and any drive source may be used as long as the exhaust fan 3 can be rotated.

Further, in the above embodiment, as shown in FIG. 5, the rotary shaft 6b and the spinner 1 are configured so that the screw between the rotary shaft 6b and the spinner 1 is tightened with respect to the rotation direction of the rotary shaft 6b. ing. Specifically, the male screw portion 6d of the rotating shaft 6b is a reverse screw with respect to the rotating direction of the rotating shaft 6b. As a result, the rotation of the rotation shaft 6b firmly fastens the rotation shaft 6b and the spinner 1.

Further, in the above embodiment, the configuration in which the spinner 1 is attached to the fan member 4 so as to be relatively rotatable has been described, but the spinner 1 may be separate from the fan member 4.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and it is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 Spinner, 1a lever member, 1aa lever body, 1ab bottom, 1ad, 1ae guide, 1af, 1fb, 1hc, 2e, 3ba through hole, 1b lever urging member, 1c operating member, 1ca main body, 1cc protrusion , 1cc, 2c flange part, 1d urging member for operation, 1e spinner body, 1f cover member, 1fa cover part body, 1fc lever guide part, 1fd engagement piece guide part, 1ga1,1gb1 female screw part, 1ga, 1gb Combined piece, 1h presser member, 1ha body, 1hb inward overhang part, 2 base member, 2a cylindrical part, 2b ring part, 2d fitting part, 3 exhaust fan, 3a fan blade, 3b upper support plate, 3c lower part Support plate, 4 fan member, 6 motor, 6a motor body, 6b rotation shaft, 6c protrusion, 6d male screw part, 8 fan casing, 8a suction port, 8b, 11a internal space, 10 range hood, 11 body housing, 12 Hood case, 13 current plate, 14 interior panel, 15 gap, D1 1st direction, D2 2nd direction, OP operation part, ha large diameter part, hb small diameter part.

Claims (5)

A fan member that can be attached to and detached from the rotating shaft of a drive source having a rotating shaft including a male screw portion,
A mounting adapter that can rotate about the rotation axis with respect to the fan member is provided.
The mounting adapter
A lever member that can move in the first direction and
By having a female screw portion and moving in a second direction which is a direction different from the first direction and is a radial direction about the rotation axis as the lever member moves in the first direction. It has a first position where the female screw portion and the male screw portion mesh with each other, and an engaging piece which moves between a second position where the female screw portion and the male screw portion are disengaged from each other. , Fan attachment / detachment device. The fan attachment / detachment device according to claim 1, wherein the mounting adapter further includes a lever urging member that urges the lever member in the first direction so that the engaging piece is in the first position. The fan attachment / detachment device according to claim 2, wherein the mounting adapter further includes an operating member that locks the lever member so that the engaging piece maintains the second position. The mounting adapter further comprises an actuating urging member that urges the actuating member towards the lever member.
When the actuating member moves against the urging force of the actuating urging member, the lever member is unlocked by the actuating member, and the lever member moves by the urging force of the lever urging member. The fan attachment / detachment device according to claim 3, wherein the engaging piece moves to the first position. A drive source having a rotating shaft including a male screw part,
A fan member that can be attached to and detached from the rotating shaft of the drive source,
A mounting adapter that can rotate about the rotation axis with respect to the fan member is provided.
The mounting adapter
A lever member that can move in the first direction and
By having a female screw portion and moving in a second direction which is a direction different from the first direction and is a radial direction about the rotation axis as the lever member moves in the first direction. It has a first position where the female screw portion and the male screw portion mesh with each other, and an engaging piece which moves between a second position where the female screw portion and the male screw portion are disengaged from each other. ,Range food.

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