JP7092593B2 - Range food - Google Patents

Description

The present invention relates to a range hood.

Regarding the mounting structure of a fan in a range hood, conventionally, a range hood in which a 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 engagement urging force. In this state, the exhaust fan is pulled downward and pulled out from the rotating shaft, and is removed from the range hood.

Japanese Unexamined Patent Publication No. 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 properly 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 range hood in which a fan can be easily attached and detached even if a member is stuck.

The range hood of the present invention includes a drive source, a fan member, and a spinner. The drive source has a rotation axis. The fan member is attached to the rotating shaft of the drive source. The spinner can move between the screwed state in which the fan member is attached to the rotating shaft and the screwed state in which the fan member is screwed to the rotating shaft of the drive source and the unscrewed state in which the screwed state with the rotating shaft is released. It has a compound member. The spinner is detachable from the rotating shaft by screwing, and is removable from the rotating shaft by operating the engaging member between the screwed state and the disengaged state.

According to the range hood of the present invention, the spinner can be attached to and detached from the rotating shaft by screwing, and can be attached to and detached from the rotating shaft by operating the engaging member between the screwed state and the disengaged state. It is possible. Therefore, even when the engaging member is fixed to another member due to oil stains, rust, etc., the spinner can be attached to and detached from the rotating shaft by screwing. Therefore, it is easy to attach / detach the fan even if it is stuck due to oil stains or rust.

In the range hood, the spinner has an actuating member and a second urging member. The actuating member is movable between a first state in which the engaging member is in the screwed state and a second state in which the engaging member is in the disengaged state. The second urging member urges the operating member to be in the second state.

By setting the operating member in the second state by the urging force of the second urging member as described above, it is possible to release the screwed state between the rotating shaft and the engaging member. Therefore, the rotating shaft can be attached to and detached from the screwable position with the engaging member in the released state. Therefore, the spinner can be easily attached to and detached from the rotating shaft.

The range hood is configured so that the operating member is in the first state by inserting the rotating shaft into a position where it can be screwed with the engaging member.

As a result, the rotating shaft is inserted into a position where it can be screwed with the engaging member, so that the engaging member is screwed into the rotating shaft. Therefore, the screwed state can be realized only by inserting the rotating shaft, and the operation of attaching the spinner to the rotating shaft becomes easy.

In the range hood, the engaging member is configured to slide linearly between the screwed state and the disengaged state.

As a result, the engaging member is slid and moved against the urging force of the urging member, so that the screwed state between the engaging member and the rotating shaft can be released.

In the range hood, the engaging member is configured to rotate and move between the screwed state and the disengaged state.

As a result, the engaging member is rotationally moved against the urging force of the urging member, so that the screwed state between the engaging member and the rotating shaft can be released.

In the range hood, the spinner has an operating member and a third urging member. The operating member can be moved between the first state in which the engaging member is in the screwed state and the second state in which the engaging member is in the disengaged state, and can be operated from the outside of the spinner. The third urging member urges the operating member to be in the first state.

As a result, the operating member is urged to the first state by the urging force of the third urging member, and the screwed state between the rotating shaft and the engaging member is maintained.

In the range hood, the spinner further has a first urging member that urges the engaging member so that the engaging member is in a screwed state. The direction in which the first urging member urges the engaging member is different from the direction in which the operating member is operated between the screwed state and the disengaged state.

As a result, the urging force of the urging member makes it possible to maintain the screwed state between the engaging member and the rotating shaft. Further, it is possible to increase the urging force of the first urging member to maintain the screwed state strongly and to reduce the operating force required to release the screwed state.

In the range hood, the engaging member is a spring member having an engaging portion and a pair of extending portions extending radially outward from both ends of the engaging portion.

As a result, it is possible to realize a screwed state and a released state with the rotating shaft with a simple configuration using a spring member.

Further, the operating member can be moved to the second state against the urging force of the second urging member. As a result, the screwed state between the rotating shaft and the engaging member can be released, and the spinner can be attached to and detached from the rotating shaft.

As described above, according to the present invention, it is possible to realize a range hood in which the fan can be easily removed even if the members are stuck.

It is a perspective view which shows the structure of the range hood in Embodiment 1 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. FIG. 3 is a cross-sectional view showing a configuration in the vicinity of a spinner in the range hood of FIG. 1 in which a lever member is in a screwed state with a rotating shaft. It is an exploded sectional view which shows the structure of the vicinity of a spinner in the range hood of FIG. It is an upper perspective view which shows the structure of the lever member and the urging member included in the spinner shown in FIG. It is a lower perspective view which shows the structure of the lever member, the urging member and the actuating member included in the spinner shown in FIG. It is sectional drawing for demonstrating the 1st state of the operation of the actuating member in the spinner shown in FIG. It is sectional drawing for demonstrating the 2nd state of the operation of the actuating member in the spinner shown in FIG. FIG. 3 is a cross-sectional view showing a configuration in the vicinity of a spinner in the range hood of FIG. 1 in a released state in which the screwed state between the lever member and the rotating shaft is released. It is sectional drawing which shows the structure of the modification of the spinner of the range hood in Embodiment 1 of this invention. It is a top view which shows the structure of the engaging member, the urging member and the actuating member included in the spinner of the range hood in Embodiment 2 of this invention. It is sectional drawing for demonstrating operation of the actuating member of the range hood in Embodiment 2 of this invention. It is a top view which shows the structure of the engaging member, the urging member and the actuating member included in the spinner of the range hood in Embodiment 3 of this invention. It is sectional drawing for demonstrating operation of the actuating member of the range hood in Embodiment 3 of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the following figures, the same or corresponding parts are designated by the same reference numerals, and duplicate explanations will not be repeated.

(Embodiment 1)
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 has 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, 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 leads to 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 end 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 annular shape of the upper support plate 3b. The base member 2 is detachably attached to the upper support plate 3b by, for example, a bolt or the like.

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

The spinner 1 is attached to the rotating shaft 6b of the motor 6 by screwing. Further, the spinner 1 can be attached / detached to / from the rotating shaft 6b of the motor 6 by screwing, and can also be attached / detached by one-touch operation. The spinner 1 is attached to the fan member 4 so as to be rotatable relative to the fan member 4.

Next, the detailed configurations of the spinner 1, the fan member 4, and the motor 6 will be described with reference to FIGS. 3 to 7.

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 FIGS. 4 and 5, the fan member 4 has a base member 2 and an exhaust fan 3 as described above. The base member 2 has a base lower portion 2L and a base upper portion 2U. The base lower portion 2L has an annulus portion 2aa and a flange portion 2ab. The annulus portion 2aa has an annulus shape. A through hole 2ac is provided in the center of the annulus portion 2aa. A female screw portion 2f is provided on the upper surface of the annular portion 2aa.

The flange portion 2ab is arranged at the lower end of the annular portion 2aa. The flange portion 2ab projects from the outer peripheral end of the annular portion 2aa toward the outer peripheral side centered on the rotation shaft 6b. The flange portion 2ab may be provided along the entire circumference of the outer peripheral end of the annular portion 2aa, or may be provided on a part of the outer peripheral end thereof.

The base upper portion 2U has an overhanging fixing portion 2ba, an upward protruding portion 2c, and a fitting portion 2d. The overhanging fixing portion 2ba has, for example, an annular shape and has a through hole 2bb.

The upward protruding portion 2c extends upward from the upper surface of the overhanging fixing portion 2ba. The upward protrusion 2c has, for example, a cylindrical shape. In the radial dimension of the upward projecting portion 2c centered on the cylindrical axial center AX, the radial dimension of the upward projecting portion 2c is smaller than the radial dimension of the overhanging fixing portion 2ba.

The fitting portion 2d is located at the upper end of the upward protruding portion 2c. As shown in FIG. 5, the fitting portion 2d is composed of a plurality of convex portions 2da and a plurality of concave portions 2db. The plurality of convex portions 2da and the plurality of concave portions 2db are arranged so that the convex portions 2da and the concave portions 2db are alternately arranged in the circumferential direction of the rotation shaft 6b. In the present embodiment, the convex portion 2da and the concave portion 2db are arranged, for example, four each in the circumferential direction.

A through hole 2e is provided in the upper portion 2U of the base. The through hole 2e extends along the axial center AX of the upward protrusion 2c.

The spinner 1 includes a spinner main body 1a, a pressing member 1b, a pair of lever members 1d (engaging member), a pair of urging members 1e (first urging member), an operating member 1f, and urging. It has 1 g of a member (second urging member).

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

The pressing member 1b has a pressing portion 1bc and a cylindrical portion 1be. The cylindrical portion 1be has a cylindrical shape. The pressing portion 1bc is connected to the upper end of the cylindrical portion 1be, and extends from the upper end of the cylindrical portion 1be to the inner peripheral side. A through hole 1bd is provided at the center of the pressing portion 1bc.

The spinner main body 1a and the pressing member 1b are fixed to each other by a fixing member (not shown) such as a bolt. In the space between the spinner main body 1a and the pressing member 1b, the base lower portion 2L, the lever member 1d, the operating member 1f, and the urging member 1e and 1g are arranged.

Each of the pair of lever members 1d has a female screw forming portion 1da, an operating portion 1db, and a connecting portion 1dc. A female screw portion is formed at one end of the female screw forming portion 1da. The female screw portion of the female screw forming portion 1da is a portion that meshes with and is screwed with the male screw portion of the rotating shaft 6b.

The operation unit 1db is located outside the space between the spinner main body 1a and the pressing member 1b. The operation unit 1db is a part 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 work.

The connecting portion 1dc is a portion that connects the female screw forming portion 1da and the operating portion 1db. The first end of the connecting portion 1dc is connected to the female screw forming portion 1da, and the second end on the opposite side of the first end of the connecting portion 1dc is connected to the operating portion 1db. The female screw forming portion 1da has one end portion facing each other and the other end portion, and has a female screw portion at the one end portion connected to the connection portion 1dc.

As shown in FIG. 6, the pair of lever members 1d includes a first lever member 1d (first engaging portion) and a second lever member 1d (second engaging portion). A through hole 1de is provided in each connection portion 1dc of the first lever member 1d and the second lever member 1d.

The female screw forming portion 1da of the second lever member 1d is located in the through hole 1de of the first lever member 1d, and the female screw forming portion 1da of the first lever member 1d is located in the through hole 1de of the second lever member 1d. The first lever member 1d and the second lever member 1d are combined so as to be located.

The female screw forming portion 1da of the first lever member 1d can slide in the through hole 1de of the second lever member 1d in the direction indicated by the arrow in FIG. Further, the female screw forming portion 1da of the second lever member 1d can slide in the through hole 1de of the first lever member 1d in the direction indicated by the arrow in FIG. As a result, the first lever member 1d and the second lever member 1d are configured to slide and move linearly with respect to each other.

The pair of urging members 1e includes a first urging portion 1e and a second urging portion 1e. The first urging portion 1e is arranged between the female screw forming portion 1da of the first lever member 1d and the connecting portion 1dc of the second lever member 1d. The first urging portion 1e is arranged in the through hole 1de of the second lever member 1d. The first urging portion 1e urges the female screw forming portion 1da of the first lever member 1d toward the female screw forming portion 1da of the second lever member 1d.

Further, the second urging portion 1e is arranged between the female screw forming portion 1da of the second lever member 1d and the connecting portion 1dc of the first lever member 1d. The second urging portion 1e is arranged in the through hole 1de of the first lever member 1d. The second urging portion 1e urges the female screw forming portion 1da of the second lever member 1d toward the female screw forming portion 1da of the first lever member 1d.

As described above, in both the first urging portion 1e and the second urging portion 1e, the female screw forming portion 1da of the first lever member 1d and the female screw forming portion 1da of the second lever member 1d are brought close to each other. The 1-lever member 1d and the 2nd lever member 1d are urged. Therefore, when the male screw portion of the rotary shaft 6b is inserted between the female screw portions, both the female screw portion of the first lever member 1d and the female screw portion of the second lever member 1d are male of the rotary shaft 6b. The first urging portion 1e and the second urging portion 1e urge the first lever member 1d and the second lever member 1d so as to be in a screwed state to be screwed into the screw portion.

Further, from this state, the operating portion 1db of the first lever member 1d can be pushed toward the second lever member 1d, and the operating portion 1db of the second lever member 1d can be pushed toward the first lever member 1d. By this pushing operation, the female screw portion of the first lever member 1d and the female screw portion of the second lever member 1d move so as to be separated from each other. As a result, both the female threaded portion of the first lever member 1d and the female threaded portion of the second lever member 1d can be released from being screwed with the male threaded portion of the rotating shaft 6b.

The direction in which each of the first urging portion 1e and the second urging portion 1e urges the first lever member 1d and the second lever member 1d is between the screwed state and the released state. The direction is the same as the direction in which the 1d and the second lever member 1d slide and move.

As shown in FIGS. 4 and 5, the operating member 1f is arranged below the first lever member 1d and the second lever member 1d. The actuating member 1f has a convex portion 1fa on the upper surface. The convex portion 1fa has a tapered cross-sectional shape whose width decreases as it approaches the first lever member 1d and the second lever member 1d. The convex portion 1fa has a triangular or trapezoidal cross-sectional shape.

The urging member 1g is arranged below the operating member 1f. The urging member 1g urges the operating member 1f toward the first lever member 1d and the second lever member 1d. As a result, the convex portion 1fa of the operating member 1f can come into contact with the first lever member 1d and the second lever member 1d.

As shown in FIG. 7, in each of the first lever member 1d and the second lever member 1d, a tapered portion 1dd is arranged on the female screw forming portion 1da. The tapered portion 1dd is located at the lower end of one end of the female thread forming portion 1da on which the female thread portion is formed. The cross-sectional shape of the tapered portion 1dd matches the cross-sectional shape of the convex portion 1fa of the operating member 1f.

The tapered portion 1dd of the first lever member 1d and the tapered portion 1dd of the second lever member 1d face each other. The tapered portion 1dd of the first lever member 1d and the tapered portion 1dd of the second lever member 1d have an inclination so as to approach each other from the bottom to the top.

The convex portion 1fa of the operating member 1f is arranged so as to be able to come into contact with both the tapered portion 1dd of the first lever member 1d and the tapered portion 1dd of the second lever member 1d.

The actuating member 1f is movable between the first state shown in FIG. 8 and the second state shown in FIG.

As shown in FIG. 8, in the first state, each female screw portion of the first lever member 1d and the second lever member 1d is in a screwed state with the male screw portion of the rotating shaft 6b. Further, in the second state, the female threaded portions of the first lever member 1d and the second lever member 1d are in the released state in which the screwed state is released from the male threaded portion of the rotating shaft 6b. ..

Specifically, as shown in FIG. 8, the first state of the operating member 1f is that the operating member 1f resists the urging force of the urging member 1g by the action of a downward external force on the operating member 1f. It is in a state of moving downward (direction of arrow C). In this first state, the actuating member 1f is separated from both the first lever member 1d and the second lever member 1d. In this case, each of the first lever member 1d and the second lever member 1d slides in the direction of arrow A due to the urging force of the urging member 1e. As a result, the distance between the female screw portion of the first lever member 1d and the female screw portion of the second lever member 1d is also narrowed, and each of the female screw portions and the male screw portion of the rotary shaft 6b can be screwed together. ..

Further, as shown in FIG. 9, the second state of the operating member 1f is a state in which the operating member 1f is moved upward (in the direction of arrow D) by the urging force of the urging member 1g. In this second state, the convex portion 1fa of the operating member 1f presses the tapered portions 1dd of the first lever member 1d and the second lever member 1d by the urging force of the urging member 1g. As a result, the distance between the tapered portion 1dd of the first lever member 1d and the tapered portion 1dd of the second lever member 1d is widened. That is, each of the first lever member 1d and the second lever member 1d slides in the direction of arrow B. As a result, the distance between the female screw portion of the first lever member 1d and the female screw portion of the second lever member 1d is widened, and the screwed state between the female screw portion and the male screw portion of the rotary shaft 6b can be released. ..

In the above, each of the urging members 1e and 1g is, for example, a spring, but the present invention is not limited to this, and any member that can apply an urging force may be used. Further, the urging force of the urging member 1g causes the first and second lever members 1d to slide in the direction of arrow B against the urging force of the urging member 1e when the convex portion 1fa is pressed against the tapered portion 1dd. Adjusted to move.

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

As shown in FIG. 5, a lever member 1d, an operating member 1f, an urging member 1e, 1g, and a spinner main body 1a are arranged below the base lower portion 2L. The pressing member 1b is arranged above the base lower portion 2L so as to sandwich the flange portion 2ab of the base lower portion 2L with the spinner main body 1a.

The presser member 1b is fixed to the spinner main body 1a with a fixing member (not shown), and the spinner 1 is composed of the spinner main body 1a, the presser member 1b, the lever member 1d, the actuating member 1f, and the urging member 1e and 1g. By sandwiching the flange portion 2ab between the spinner main body 1a and the pressing portion 1bc, the spinner 1 is attached so as to be rotatable relative to the lower portion 2L of the base.

After that, the assembly of the spinner 1 and the lower part 2L of the base and the upper part 2U of the base are arranged so as to sandwich the upper support plate 3b of the exhaust fan 3. A fixing member 5 such as a bolt penetrates the through hole 2bb of the base upper portion 2U and the through hole 3bb of the upper support plate 3b and is screwed into the female screw portion 2f of the base lower portion 2L. As a result, the lower base 2L, the upper base 2U, and the upper support plate 3b of the exhaust fan 3 are fixed to each other by the fixing member 5.

As a result, the base member 2 is composed of the base lower portion 2L and the base upper portion 2U, and the fan member 4 is configured from the base member 2 and the exhaust fan 3. The spinner 1 is rotatably attached to the fan member 4.

The spinner 1 and the fan member 4 are assembled as described above.
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. 9, 10, 4, and the like.

As shown in FIG. 9, before the assembly of the spinner 1 and the fan member 4 is attached to the rotating shaft 6b, the operating member 1f is urged upward (arrow D direction) by the urging member 1g. .. When the convex portion 1fa of the operating member 1f presses the tapered portion 1dd of each of the first lever member 1d and the second lever member 1d, the lever member 1d resists the urging force of the urging member 1e in the direction of arrow B. The slide is moving to.

In this state, the female screw portions of the first lever member 1d and the second lever member 1d are separated from each other and are in a position where they do not mesh with the male screw portion of the rotating shaft 6b. Therefore, as shown in FIG. 10, the male screw portion of the rotating shaft 6b can be inserted to a position facing the female screw portion of the lever member 1d without interfering with the lever member 1d.

By inserting the rotating shaft 6b, the rotating shaft 6b pushes the operating member 1f downward against the urging force of the urging member 1g. When the actuating member 1f is pushed downward, each of the first lever member 1d and the second lever member 1d slides in the direction of arrow A due to the urging force of the urging member 1e.

As the lever member 1d slides in the direction of arrow A, the female screw portions of the first lever member 1d and the second lever member 1d mesh with the male screw portion of the rotary shaft 6b as shown in FIG. Further, the urging force of the urging member 1e maintains the meshed state between the female screw portion of the lever member 1d and the male screw portion of the rotating shaft 6b. 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 lower portion 2L of the base. 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 lower base portion 2L and the rotating shaft 6b. As a result, the meshing between the female screw portion of the lever member 1d and the male screw portion of the rotary 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 rotary shaft 6b by one-touch operation, each of the first lever member 1d and the second lever member 1d is pushed into the spinner body 1a from the state shown in FIG. It is operated like. By this pushing operation, as shown in FIG. 10, each of the first lever member 1d and the second lever member 1d slides in the direction of arrow A. As a result, the meshed state between the female screw portion of the lever member 1d and the male screw portion of the rotary shaft 6b is released. Therefore, one-touch operation of pulling out the spinner 1 and the fan member 4 from the rotating shaft 6b while sliding the lever member 1d in the direction of arrow A without rotating the spinner 1 relative to the lower base 2L and the rotating shaft 6b. Then, the spinner 1 and the fan member 4 can be removed from the rotating shaft 6b.

Further, when the spinner 1 and the fan member 4 are removed from the rotary shaft 6b by screwing, the spinner 1 may be rotated relative to the lower base portion 2L and the rotary shaft 6b from the state shown in FIG. The spinner 1 is rotated with respect to the rotary shaft 6b or the like until the screwed state between the female screw portion of the lever member 1d and the male screw portion of the rotary shaft 6b is released, so that the spinner 1 and the fan member 4 are rotated. It can also be removed from 6b.

Next, the effect of the range hood 10 in the present embodiment will be described.
As described above, according to the present embodiment, the spinner 1 is attached to and detached from the rotating shaft 6b by a one-touch operation (operation between the screwed state and the released state of the first and second lever members 1d). It is possible and can be attached and detached by screwing. Therefore, even if the first and second lever members 1d are stuck to the spinner main body 1a or the like due to oil stains, rust, or the like and cannot be operated, the spinner 1 can be attached to and detached from the rotating shaft 6b by screwing. Therefore, the exhaust fan 3 can be easily attached and detached even if sticking due to oil stains, rust, or the like occurs.

Further, according to the present embodiment, as shown in FIG. 4, the lever member 1d is attached by the urging member 1e so that the female threaded portion of the lever member 1d is screwed with the male threaded portion of the rotating shaft 6b. It is being pushed. As a result, the urging force of the urging member 1e makes it possible to maintain the screwed state between the lever member 1d and the rotating shaft 6b.

Further, according to the present embodiment, as shown in FIG. 4, the lever member 1d is configured to slide linearly between the screwed state and the released state. As a result, the lever member 1d is slid and moved against the urging force of the urging member 1e, so that the screwed state between the lever member 1d and the rotating shaft 6b can be released.

Further, according to the present embodiment, as shown in FIG. 4, the operating member 1f includes a first state (see FIG. 4) in which the lever member 1d and the rotating shaft 6b are screwed together, and the lever member 1d. It is movable between the rotating shaft 6b and the second state (see FIG. 9) in which the rotating shaft 6b is released. Further, the urging member 1g urges the operating member 1f so as to be in the second state. As a result, in a state where no external force acts on the operating member 1f, it is possible to release the screwed state between the rotating shaft 6b and the lever member 1d. Therefore, as shown in FIG. 10, the rotary shaft 6b can be inserted to a screwable position with the female screw portion of the lever member 1d without interfering with the lever member 1d. Therefore, it is not necessary to continue the unscrewed state between the female screw portion of the lever member 1d and the male screw portion of the rotary shaft 6b, and the spinner 1 can be easily attached to and detached from the rotary shaft 6b.

Further, according to the present embodiment, as shown in FIG. 10, by inserting the rotating shaft 6b into a position where it can be screwed with the lever member 1d, the operating member 1f resists the urging force of the urging member 1g. Pushed down. As a result, as shown in FIG. 4, the lever member 1d slides in the direction of arrow A due to the urging force of the urging member 1e, and becomes a screwed state in which the lever member 1d is screwed with the rotating shaft 6b. That is, when the rotating shaft 6b is inserted at a position where it can be screwed with the lever member 1d in the released state, the operating member 1f is in the first state. Therefore, the screwed state can be realized only by inserting the rotating shaft 6b, and the operation of attaching the spinner 1 to the rotating shaft 6b becomes easy.

In the above embodiment, a configuration in which a pair of urging members 1e are provided for a pair of lever members 1d as shown in FIG. 4 has been described, but as shown in FIG. 11, a pair of urging members 1e has been provided. One urging member 1e may be provided for a pair of lever members 1d. Even in this configuration, the same effect as described above can be obtained.

Further, as shown in FIG. 3, a hexagonal convex portion 1aa may be provided on the lower surface of the spinner main body 1a. By fitting a hexagon wrench into the hexagonal convex portion 1aa and turning the screw, the spinner 1 and the fan member 4 are attached to the rotating shaft 6b and can be easily removed.

(Embodiment 2)
The configuration of the present embodiment is different from the configuration of the first embodiment in the mechanism for attaching and detaching the fan member 4 to and from the rotating shaft 6b.

As shown in FIG. 12A, the spinner 1 in the present embodiment includes the spinner main body 1a, the first engaging portion 21da, the second engaging portion 21db, the operating member 21f, and the urging member 21ea. , 21eb (first urging member), urging member 21g (third urging member), and shaft 21h.

Each of the first engaging portion 21da and the second engaging portion 21db has a female screw portion that meshes with the male screw portion of the rotating shaft 6b. Each of the first engaging portion 21da and the second engaging portion 21db is rotatable about the shaft 21h. As a result, the distance between the female threaded portion of the first engaging portion 21da and the female threaded portion of the second engaging portion 21db can be expanded or contracted.

The urging member 21ea urges the first engaging portion 21da in the rotational direction about the shaft 21h. Further, the urging member 21eb urges the second engaging portion 21db in the rotational direction about the shaft 21h. Due to these urging members 21ea and 21eb, the first engaging portion 21da and the second engaging portion 21da and the second engaging portion are narrowed so that the distance between the female threaded portion of the first engaging portion 21da and the female threaded portion of the second engaging portion 21db is narrowed. The unit 21db is urged.

The first engaging portion 21da has a tapered portion 21ta. The second engaging portion 21db also has a tapered portion 21tb. The tapered portion 21ta of the first engaging portion 21da and the tapered portion 21tb of the second engaging portion 21db face each other. Each of the tapered portion 21ta of the first engaging portion 21da and the tapered portion 21tb of the second engaging portion 21db has an inclination so as to approach each other as the shaft 21h approaches.

The operating member 21f has a tapered portion 21fa and a tapered portion 21fb. The tapered portion 21fa of the operating member 21f can come into contact with the tapered portion 21ta of the first engaging portion 21da. Further, the tapered portion 21fb of the operating member 21f can come into contact with the tapered portion 21tb of the second engaging portion 21db.

The urging member 21g urges the operating member 21f toward the direction away from the first engaging portion 21da and the second engaging portion 21db (in the direction of the white arrow in the figure).

The operating member 21f projects outward from the internal space of the spinner main body 1a. This makes it possible to push the operating member 21f into the spinner main body 1a against the urging force of the urging member 21g.

The operating member 21f has a first state (FIG. 12A) in which the operating member 21f is separated from both the first engaging portion 21da and the second engaging portion 21db, and the operating member 21f has the first engaging portion 21da and the operating member 21f. It is movable to and from the second state (FIG. 12B) in contact with both of the second engaging portions 21db.

When the operating member 21f is in the first state, as shown in FIG. 12A, both the first engaging portion 21da and the second engaging portion 21db are in a screwed state screwed with the rotating shaft 6b. be. Further, when the operating member 21f is in the second state, as shown in FIG. 12B, the tapered portions 21fa and 21fb of the operating member 21f are the tapered portions 21ta and 21tb of the first and second engaging portions 21da and 21db. By pressing, both the first engaging portion 21da and the second engaging portion 21db are in the released state in which the screwed state with the rotating shaft 6b is released.

Since the configuration of the present embodiment other than the above is almost the same as the configuration of the first embodiment, the same elements as those of the first embodiment among the elements of the present embodiment are designated by the same reference numerals. Do not repeat the explanation.

Next, a method of attaching the spinner 1 to the rotating shaft 6b by screwing or one-touch operation will be described with reference to FIGS. 12A and 12B.

As shown in FIG. 12A, the operating member 21f is urged by the urging member 21g in a direction away from the first engaging portion 21da and the second engaging portion 21db (in the direction of the white arrow in the figure). There is. Therefore, in a state where no external force is applied to the operating member 21f, the operating member 21f is not in contact with both the first engaging portion 21da and the second engaging portion 21db.

Further, in this state, each of the urging members 21ea and 21eb urges the first engaging portion 21da and the second engaging portion 21db in the rotational direction about the shaft 21h. Therefore, the female threaded portion of the first engaging portion 21da and the female threaded portion of the second engaging portion 21db are in the closest state to each other.

When the female threaded portion of the first engaging portion 21da and the female threaded portion of the second engaging portion 21db are in the closest state to each other, the male threaded portion of the rotating shaft 6b can be screwed into both of the female threaded portions. Is. Therefore, the spinner 1 can be attached to the rotary shaft 6b by screwing both of the female screw portions into the male screw portion of the rotary shaft 6b.

Further, before attaching the spinner 1 to the rotating shaft 6b from the above state, the operating member 21f may be pushed in the direction toward the inside of the spinner main body 1a (in the direction of the black arrow in the figure) as shown in FIG. 12B. can. By pushing in the operating member 21f, the tapered portions 21fa and 21fb of the operating member 21f come into contact with the tapered portions 21ta and 21tb of the first engaging portion 21da and the second engaging portion 21db, respectively. As a result, each of the first engaging portion 21da and the second engaging portion 21db rotates about the shaft 21h against the urging force of the urging members 21ea and 21eb. Due to this rotational operation, the female threaded portion of the first engaging portion 21da and the female threaded portion of the second engaging portion 21db are separated from each other. In this state, the male screw portion of the rotating shaft 6b is not screwed with the female screw portion in the space between the female screw portion of the first engaging portion 21da and the female screw portion of the second engaging portion 21db. It becomes possible to insert.

After the male screw portion of the rotating shaft 6b is inserted between the female screw portion of the first engaging portion 21da and the female screw portion of the second engaging portion 21db, the operation member 21f is pushed into the spinner main body 1a. It will be released. As a result, as shown in FIG. 12A, the operating member 21f moves in the direction away from the first engaging portion 21da and the second engaging portion 21db (in the direction of the white arrow in the figure) due to the urging force of the urging member 21g. do. As a result, the operating member 21f is separated from each of the first engaging portion 21da and the second engaging portion 21db. Then, each of the first engaging portion 21da and the second engaging portion 21db has the female screw portion of the first engaging portion 21da and the female screw portion of the second engaging portion 21db due to the urging force of the urging members 21ea and 21eb. It is in a screwed state where it approaches each other and meshes with the male screw portion of the rotating shaft 6b.

By operating the operating member 21f as described above, it is also possible to attach the spinner 1 to the rotating shaft 6b by one-touch operation.

Further, when the spinner 1 is removed from the rotating shaft 6b, the spinner 1 may be rotated relative to the rotating shaft 6b. That is, the spinner 1 and the fan member 4 are screwed so that the spinner 1 is rotated with respect to the rotary shaft 6b or the like until the screwed state between the female screw portion of the lever member 1d and the male screw portion of the rotary shaft 6b is released. Can also be removed from the rotating shaft 6b.

Further, as shown by the black arrow in FIG. 12B, the spinner 1 can be removed from the rotating shaft 6b by a one-touch operation of pulling out the spinner 1 from the rotating shaft 6b while pushing the operating member 21f in the direction of the black arrow. can.

The spinner 1 of the present embodiment may further include the operating member 21i and the urging member 21j (second urging member) as in the actuating member 1f and the urging member 1g of the first embodiment.

As shown in FIG. 13A, the actuating member 21i is arranged below the first engaging portion 21da and the second engaging portion 21db. The actuating member 21i has a tapered cross-sectional shape whose width decreases as it approaches the first engaging portion 21da and the second engaging portion 21db. The actuating member 21i has a trapezoidal or triangular cross-sectional shape.

The urging member 21j is arranged below the operating member 21i. The urging member 21j urges the operating member 21i toward the first engaging portion 21da and the second engaging portion 21db. As a result, the inclined portion having a tapered shape of the operating member 21i can come into contact with the first engaging portion 21da and the second engaging portion 21db.

The actuating member 21i is movable between the first state shown in FIG. 13 (A) and the second state shown in FIG. 13 (B).

As shown in FIG. 13A, in the first state, the female threaded portions of the first engaging portion 21da and the second engaging portion 21db are screwed with the male threaded portion of the rotating shaft 6b. It has become. Further, as shown in FIG. 13B, in the second state, the female threaded portions of the first engaging portion 21da and the second engaging portion 21db are between the female threaded portion of the rotating shaft 6b and the male threaded portion. The screwed state is released and the screwed state is released.

Specifically, as shown in FIG. 13A, the first state of the operating member 21i is that the operating member 21i acts as an urging force of the urging member 21j due to the action of a downward external force on the operating member 21i. It is in a state of moving downward against it. In this first state, the actuating member 21i is separated from both the first engaging portion 21da and the second engaging portion 21db. In this case, each of the first engaging portion 21da and the second engaging portion 21db is rotationally moved so that the female screw portions approach each other due to the urging force of the urging members 21ea and 21eb (FIGS. 12A and 12B). do. As a result, the distance between the female screw portions of the first engaging portion 21da and the second engaging portion 21db is also narrowed, and each of the female screw portions and the male screw portion of the rotating shaft 6b can be screwed together.

Further, as shown in FIG. 13B, the second state of the operating member 21i is a state in which the operating member 21i is moved upward by the urging force of the urging member 21j. In this second state, the operating member 21i presses the first engaging portion 21da and the second engaging portion 21db by the urging force of the urging member 21j. As a result, each of the first engaging portion 21da and the second engaging portion 21db rotates and moves so that the female screws are separated from each other. As a result, the distance between the female screw portion of the first engaging portion 21da and the female screw portion of the second engaging portion 21db is widened, and the screwed state between the female screw portion and the male screw portion of the rotating shaft 6b can be released. It becomes a state.

In the above, the urging members 21ea, 21eb, and 21j are, for example, springs, but are not limited thereto, and may be any member that can apply urging force. Further, the urging force of the urging member 21j resists the urging force of the urging members 21ea and 21eb when the operating member 21i is pressed against each of the first engaging portion 21da and the second engaging portion 21db. The first engaging portion 21da and the second engaging portion 21db are adjusted to rotate and move.

Next, the effect of the range hood 10 in the present embodiment will be described.
According to the present embodiment, as in the first embodiment, the spinner 1 can be attached to and detached from the rotating shaft 6b by both one-touch operation and screwing operation. Therefore, even if the operating member 21f is stuck to the spinner main body 1a or the like due to oil stains, rust, or the like and cannot be operated, the spinner 1 can be attached to and detached from the rotating shaft 6b by screwing. Therefore, the exhaust fan 3 can be easily attached and detached even if sticking due to oil stains, rust, or the like occurs.

Further, according to the present embodiment, as shown in FIGS. 12A and 12B, the female threaded portions of the first engaging portion 21da and the second engaging portion 21db are male threads of the rotating shaft 6b. The first engaging portion 21da and the second engaging portion 21db are urged by the urging members 21ea and 21eb so as to be in a screwed state with the portion. As a result, the urging force of the urging members 21ea and 21eb makes it possible to maintain the screwed state between the first engaging portion 21da and the second engaging portion 21db and the rotating shaft 6b.

Further, according to the present embodiment, as shown in FIG. 12A, the direction in which the urging members 21ea and 21eb urge the first engaging portion 21da and the second engaging portion 21db is the operating member 21f. The direction is different from the direction in which you operate. As a result, the urging force of the urging members 21ea and 21eb can be strengthened to maintain the screwed state strongly, and the operating force required to release the screwed state can be reduced.

Further, according to the present embodiment, as shown in FIG. 12A, each of the first engaging portion 21da and the second engaging portion 21db rotates and moves between the screwed state and the disengaged state. It is configured as follows. As a result, the direction in which the urging members 21ea and 21eb urge the first engaging portion 21da and the second engaging portion 21db can be set to a direction different from the direction in which the operating member 21f is operated.

Further, according to the present embodiment, the operating member 21f can move between the first state shown in FIG. 12A and the second state shown in FIG. 12B. The first state shown in FIG. 12A is a state in which the female screw portions of both the first engaging portion 21da and the second engaging portion 21db are in a screwed state with the male screw portion of the rotating shaft 6b. Further, in the second state shown in FIG. 12B, the state in which the female screw portions of the first engaging portion 21da and the second engaging portion 21db are screwed with the male screw portion of the rotating shaft 6b is released. It is a state to be in a state. Further, the urging member 21g urges the operating member 21f so as to be in the first state. As a result, the operating member 21f is urged to the first state by the urging force of the urging member 21g, and the female threaded portion of both the first engaging portion 21da and the second engaging portion 21db and the male threaded portion of the rotating shaft 6b The screwed state is maintained. Further, the operating member 21f can be moved to the second state against the urging force of the urging member 21g. As a result, the screwed state between the female threaded portion of both the first engaging portion 21da and the second engaging portion 21db and the male threaded portion of the rotating shaft 6b can be released, and the rotating shaft 6b can be set to the released state. On the other hand, the spinner 1 can be attached and detached.

Further, according to the present embodiment, as shown in FIGS. 12A and 12B, it is sufficient to operate the operation member 21f from one direction, so that the operator can apply a force to the operation member 21f. It will be easy.

Further, in the present embodiment, as shown in FIG. 13B, when the operating member 21i and the urging member 21j are provided, the operating member 21i maintains the second state. Therefore, when the fan member 4 is attached to and detached from the rotary shaft 6b, the screwing between the female screw portions of the first engaging portion 21da and the second engaging portion 21db and the male screw portion of the rotary shaft 6b is released. There is no need to operate to continue the state.

Further, when the male screw portion of the rotating shaft 6b is inserted between the female screw portions of the first engaging portion 21da and the second engaging portion 21db from the second state shown in FIG. 13 (B), FIG. 13 As shown in (A), the operating member 21i is pushed by the rotating shaft 6b and moves downward against the urging force of the urging member 21j. As a result, the actuating member 21i is separated from the first engaging portion 21da and the second engaging portion 21db, and the female screw portions of the first engaging portion 21da and the second engaging portion 21db are brought closer to each other and the male screw of the rotating shaft 6b. Engage in the part. Therefore, the spinner 1 and the fan member 4 can be attached to the rotary shaft 6b only by inserting the male screw portion of the rotary shaft 6b between the female screw portions.

(Embodiment 3)
The configuration of the present embodiment is different from the configuration of the first embodiment in the mechanism for attaching and detaching the fan member 4 to and from the rotating shaft 6b.

As shown in FIGS. 14A and 14B, the spinner 1 in the present embodiment includes a spinner main body 1a, an engaging member 31d, an operating member 31f, and an urging member 31g (third urging member). ) And.

The engaging member 31d is made of a spring member. The engaging member 31d has an engaging portion 31da and a pair of extending portions 31db and 31dc. The engaging portion 31da is a portion that meshes with the male screw portion of the rotating shaft 6b. Therefore, the engaging portion 31da has a shape that fits into the thread groove of the male screw portion of the rotating shaft 6b. Further, the engaging portion 31da has a substantially arc shape. The central angle θ of the substantially arc shape of the engaging portion 31da is centered on the axis center AX of the upward protruding portion 2c (axis center AX of the rotating shaft 6b) in a state where the engaging portion 31da is engaged with the male screw portion of the rotating shaft 6b. It is 180 ° or more. The engaging portion 31da may have an arc shape having a single radius of curvature, may have a shape in which a plurality of arcs are combined, and may have a shape that meshes with the male screw portion of the rotating shaft 6b. If it is, the shape may be other than the above.

The diameter of the inscribed circle of the engaging portion 31da in a state where no external force is applied to the engaging portion 31da is set to be smaller than the outer diameter of the male screw portion of the rotating shaft 6b. Therefore, in a state where the engaging portion 31da is engaged with the male threaded portion of the rotating shaft 6b, the engaging portion 31da is fitted in the thread groove of the male threaded portion of the rotating shaft 6b.

The extending portion 31db is connected to the first end portion of the engaging portion 31da, and extends from the first end portion toward the radial outer side of the engaging portion 31da having a substantially arc shape. Further, the extending portion 31dc is connected to the second end portion of the engaging portion 31da and extends from the second end portion toward the radial outer side of the engaging portion 31da having a substantially arc shape. The distance L1 between the extending portion 31db and the extending portion 31dc becomes smaller toward the inner side in the radial direction.

The operating member 31f has a tip portion 31fa arranged between a pair of extending portions 31db and 31dc. The tip portion 31fa has a shape in which the width L2 becomes smaller as it approaches the engaging portion 31da.

The urging member 31g urges the operating member 31f toward the direction away from the engaging member 31d.

The operating member 31f projects outward from the internal space of the spinner main body 1a. This makes it possible to push the operating member 31f into the spinner body 1a against the urging force of the urging member 31g.

The operating member 31f has a first state (FIG. 14 (A)) in which the operating member 31f is separated from the engaging member 31d and a second state (FIG. 14 (B)) in which the operating member 31f abuts on the engaging member 31d. It is possible to move between.

When the operating member 31f is in the first state, the engaging member 31d is in a screwed state screwed with the rotating shaft 6b. Further, when the operating member 31f is in the second state, the tip portion 31fa of the operating member 31f expands the distance L1 between the pair of extending portions 31db and 31dc, so that the engaging member 31d and the rotating shaft 6b are screwed together. Is released and is in the released state.

Since the configuration of the present embodiment other than the above is almost the same as the configuration of the first embodiment, the same elements as those of the first embodiment among the elements of the present embodiment are designated by the same reference numerals. Do not repeat the explanation.

Next, a method of attaching the spinner 1 to the rotating shaft 6b by screwing or one-touch operation will be described with reference to FIGS. 14A and 14B.

As shown in FIG. 14A, the operating member 31f is urged by the urging member 31g in a direction away from the engaging member 31d (in the direction of the white arrow in the figure). Therefore, in a state where no external force is applied to the operating member 31f, the operating member 31f is not in contact with the engaging member 31d.

Further, in this state, the engaging portion 31da of the engaging member 31d can be screwed into the male screw portion of the rotating shaft 6b. Therefore, the spinner 1 can be attached to the rotating shaft 6b by screwing the engaging portion 31da of the engaging member 31d into the male screw portion of the rotating shaft 6b.

Further, before attaching the spinner 1 to the rotating shaft 6b from the above state, the operating member 31f may be pushed in the direction toward the inside of the spinner main body 1a (in the direction of the black arrow in the figure) as shown in FIG. 14B. can. By pushing the operating member 31f, the tip portion 31fa of the operating member 31f presses each of the pair of extending portions 31db and 31dc of the engaging member 31d. As a result, the distance L1 between the pair of extending portions 31db and 31dc is widened. As a result, the engaging member 31d is deformed so that the inscribed circle of the engaging portion 31da expands in diameter. In this state, the male screw portion of the rotating shaft 6b can be inserted into the engaging portion 31da without being screwed with the engaging portion 31da.

After the male screw portion of the rotating shaft 6b is inserted into the engaging portion 31da, the operation of pushing the operating member 31f into the spinner main body 1a is released. As a result, the operating member 31f moves in the direction away from the engaging member 31d (in the direction of the white arrow in the figure) due to the urging force of the urging member 31g. As a result, the engaging member 31d returns to its original shape, and the engaging portion 31da of the engaging member 31d is in a state of meshing with the male screw portion of the rotating shaft 6b.

By operating the operating member 31f as described above, it is also possible to attach the spinner 1 to the rotating shaft 6b by one-touch operation.

Further, when the spinner 1 is removed from the rotating shaft 6b, the spinner 1 may be rotated relative to the rotating shaft 6b. That is, the spinner 1 and the fan are rotated by the screwing operation in which the spinner 1 is rotated with respect to the rotary shaft 6b or the like until the screwed state between the engaging portion 31da of the engaging member 31d and the male screw portion of the rotary shaft 6b is released. The member 4 can also be removed from the rotating shaft 6b.

Further, as shown by the black arrow in FIG. 14B, the spinner 1 and the fan member 4 are pulled out from the rotating shaft 6b by a one-touch operation of pushing the operating member 31f in the direction of the black arrow and pulling out the spinner 1 from the rotating shaft 6b. It can also be removed from.

The spinner 1 of the present embodiment may further include the operating member 31i and the urging member 31j (second urging member) as in the actuating member 1f and the urging member 1g of the first embodiment.

As shown in FIG. 15A, the operating member 31i is arranged below the engaging portion 31da of the engaging member 31d. The actuating member 31i has a tapered cross-sectional shape whose width decreases as it approaches the engaging member 31d. The actuating member 31i has a trapezoidal or triangular cross-sectional shape.

The urging member 31j is arranged below the operating member 31i. The urging member 31j urges the operating member 31i toward the engaging portion 31da. As a result, the tapered portion of the operating member 31i can come into contact with the inner peripheral side of the engaging portion 31da.

The actuating member 31i is movable between the first state shown in FIG. 15 (A) and the second state shown in FIG. 15 (B).

As shown in FIG. 15A, in the first state, the engaging portion 31da of the engaging member 31d is in a screwed state with the male screw portion of the rotating shaft 6b. Further, as shown in FIG. 15B, in the second state, the engaging portion 31da of the engaging member 31d is in the released state in which the screwed state is released from the male screw portion of the rotating shaft 6b. It has become.

Specifically, as shown in FIG. 15A, the first state of the operating member 31i is that the operating member 31i acts as an urging force of the urging member 31j due to the action of a downward external force on the operating member 31i. It is in a state of moving downward against it. In this first state, the operating member 31i is separated from the engaging portion 31da of the engaging member 31d. In this case, since the engaging portion 31da of the engaging member 31d maintains its original shape, the engaging portion 31da and the male screw portion of the rotating shaft 6b can be screwed together.

Further, as shown in FIG. 15B, the second state of the operating member 31i is a state in which the operating member 31i is moved upward by the urging force of the urging member 31j. In this second state, the operating member 31i presses the engaging portion 31da so as to expand the diameter by the urging force of the urging member 31j. As a result, the diameter of the engaging portion 31da is expanded, and the screwed state between the engaging portion 31da and the male screw portion of the rotating shaft 6b can be released.

In the above, the urging members 31g and 31j are, for example, springs, but are not limited thereto, and may be any members that can apply urging force. Further, the urging force of the urging member 31j is adjusted so that the diameter of the engaging portion 31da can be expanded.

Next, the effect of the range hood 10 in the present embodiment will be described.
According to the present embodiment, as in the first embodiment, the spinner 1 can be attached to and detached from the rotating shaft 6b by both one-touch operation and screwing operation. Therefore, even when the operating member 31f is stuck to the spinner main body 1a or the like due to oil stains, rust, or the like and cannot be operated, the spinner 1 can be attached to and detached from the rotating shaft 6b by screwing. Therefore, the exhaust fan 3 can be easily attached and detached even if sticking due to oil stains, rust, or the like occurs.

Further, according to the present embodiment, as shown in FIGS. 14A and 14B, the engaging member 31d is radially outward from both ends of the engaging portion 31da and the engaging portion 31da. It is a spring member having a pair of extending portions 31db and 31dc. As a result, it is possible to realize a screwed state and a released state with the rotating shaft 6b with a simple configuration.

Further, according to the present embodiment, as shown in FIGS. 14A and 14B, it is sufficient to operate the operation member 31f from one direction, so that the operator can apply a force to the operation member 31f. It will be easy.

Further, in the present embodiment, as shown in FIG. 15B, when the operating member 31i and the urging member 31j are provided, the operating member 31i maintains the second state. Therefore, when the fan member 4 is attached to and detached from the rotating shaft 6b, it is not necessary to continue the unscrewed state between the engaging portion 31da of the engaging member 31d and the male screw portion of the rotating shaft 6b. ..

Further, when the male screw portion of the rotating shaft 6b is inserted into the engaging portion 31da from the second state shown in FIG. 15 (B), the operating member 31i is moved to the rotating shaft 6b as shown in FIG. 15 (A). Pushed by, it moves downward against the urging force of the urging member 31j. As a result, the operating member 31i is separated from the engaging portion 31da, and the engaging member 31d returns to its original shape and meshes with the male screw portion of the rotating shaft inserted into the engaging portion 31da. Therefore, the spinner 1 and the fan member 4 can be attached to the rotating shaft 6b only by inserting the male screw portion of the rotating shaft 6b into the engaging portion 31da.

In the above embodiments 1 to 3, the case where the base lower part 2L and the base upper part 2U are separate parts has been described, but the base lower part 2L and the base upper part 2U may be one integrated part.

Further, in the above-described first to third embodiments, the case where the first screw portion provided on the rotating shaft 6b is the male screw portion and the second screw portion provided on the spinner 1 is the female screw portion has been described. The first screw portion may be a female screw portion and the second screw portion may be a male screw portion.

Further, 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-described embodiments 1 to 3, as shown in FIG. 4, the rotary shaft 6b and the spinner 1 are screwed together with the rotary shaft 6b and the spinner 1 in the rotational direction of the rotary shaft 6b. It is configured in. Specifically, the male screw portion of the rotary shaft 6b is a reverse screw with respect to the rotation direction of the rotary 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-described first to third embodiments, 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 is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 Spinner, 1a Spinner body, 1aa, 1fa, 2da Convex part, 1b Presser member, 1bc Presser part, 1bd, 1de, 2bb, 2e, 3bb Through hole, 1be, 2a Cylindrical part, 1d Lever member (1st lever member, 2nd lever member), 1da female screw forming part, 1db operation part, 1dc connection part, 1dd, 21fa, 21fb, 21ta, 21tb taper part, 1e, 1g, 21ea, 21eb, 21g, 21j, 31g, 31j urging member. 1, 1f, 21i, 31i Acting member, 2 base member, 2L base lower part, 2U base upper part, 2aa annular part, 2ab flange part, 2ba overhang fixing part, 2c upward protrusion part, 2d fitting part, 2db recess, 2f female Screw part, 3 Exhaust fan, 3a fan blade, 3b upper support plate, 3c lower support plate, 4 fan member, 5 fixing member, 6 motor, 6a motor body, 6b rotating shaft, 6c protrusion, 8 fan casing, 8a Suction port, 8b, 11a internal space, 10 range hood, 11 main body housing, 12 hood case, 13 rectifying plate, 14 interior panel, 15 gap, 21da 1st engaging part, 21db 2nd engaging part, 21f, 31f operation Member, 21h axis, 31d engaging member, 31da engaging part, 31db, 31dc extending part, 31fa tip part, AX axis center.

Claims (9)

A drive source with a rotation axis and
A fan member attached to the rotating shaft of the drive source, and
With the fan member attached to the rotating shaft, the drive source can be moved between a screwed state screwed to the rotating shaft and a released state in which the screwed state with the rotating shaft is released. With a spinner having an engaging member,
The spinner can be attached to and detached from the rotating shaft by screwing, and can be attached to and detached from the rotating shaft by operating the engaging member between the screwed state and the disengaged state. It is a range hood. The spinner
An actuating member that can move between the first state in which the engaging member is in the screwed state and the second state in which the engaging member is in the disengaged state.
The range hood according to claim 1, further comprising a second urging member that urges the operating member to be in the second state. The range hood according to claim 2, wherein the operating member is configured to be in the first state by inserting the rotating shaft into a position where it can be screwed with the engaging member. The range hood according to claim 1, wherein the engaging member is configured to slide and move linearly between the screwed state and the disengaged state. The range hood according to claim 1, wherein the engaging member is configured to rotate and move between the screwed state and the disengaged state. The spinner
An operating member that can be moved between the first state in which the engaging member is in the screwed state and the second state in which the engaging member is in the disengaged state and can be operated from the outside of the spinner.
The range hood according to claim 5, further comprising a third urging member that urges the operating member to be in the first state. The spinner further includes a first urging member that urges the engaging member so that the engaging member is in the screwed state.
The sixth aspect of claim 6, wherein the direction in which the first urging member urges the engaging member is different from the direction in which the operating member is operated between the screwed state and the disengaged state. Range food. The range hood according to claim 1, wherein the engaging member is a spring member having an engaging portion and a pair of extending portions extending radially outward from both ends of the engaging portion. The spinner
An operating member that can be moved between the first state in which the engaging member is in the screwed state and the second state in which the engaging member is in the disengaged state and can be operated from the outside of the spinner.
The range hood according to claim 8, further comprising a third urging member that urges the operating member to be in the first state.

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