Ceiling fan with quick connection of the leaves

Abstract

The present disclosure provides a ceiling fan assembly or similar air moving device that can include a motor for rotating one or more blades to drive a volume of air to move about a space. A blade iron can couple the blades to a rotor. A blade iron mount is configured to connect the blade iron to the rotor by aligning a pair of spaced apart notches with a complementary pair of studs. The pair of spaced apart notches receive the pair of studs at a first position, and the pair of studs can slide in the pair of spaced apart notches from the first position to a second position to secure the blade iron to the rotor.

Description

Technical Field

[0001] This disclosure relates to a ceiling fan, and more specifically, to a ceiling fan having a quick-connect connection with blades or blade iron. Background Technology

[0002] Ceiling fans are typically suspended from a structure to move a volume of air within a specific area. A ceiling fan comprises multiple parts (such as components, parts, and / or elements) that must be connected to each other during installation. The assembly of these parts is usually accomplished using standard tools, fasteners, etc., which is easy for experienced installers but can be challenging for inexperienced ones. Summary of the Invention

[0003] In one aspect, this disclosure relates to a ceiling fan comprising: a motor having a rotor; a blade mount supported by the rotor and having a pair of spaced-apart slots and a latching spring; a blade having a pair of studs complementary to the spaced-apart slots and an impact portion partially defining a spring engagement recess; wherein the latching spring, the spring engagement recess, and the impact portion are arranged such that, after the studs are located in the slots, radial outward movement of the blade causes the latching spring to deflect onto the impact portion, wherein the latching spring deflects into the spring engagement recess, and the impact portion prevents radial inward movement of the blade.

[0004] In another aspect, this disclosure relates to a ceiling fan comprising: a motor having a rotor; a blade mount including a bracket for mounting to the rotor, the bracket having a plurality of radially arranged pairs of spaced-apart slots and a latching spring; a blade having a pair of studs complementary to the spaced-apart slots and an impact portion partially defining a spring-locking recess, the studs having a shank terminating at a head; wherein the latching spring, the spring-locking recess, and the impact portion are arranged such that, after the shank is located in the spaced-apart slots, radial outward movement of the blade causes the latching spring to deflect onto the impact portion, wherein the latching spring deflects into the spring-locking recess, and the impact portion prevents radial inward movement of the blade. Attached Figure Description

[0005] In the attached diagram:

[0006] Figure 1 This is an exploded view of a ceiling fan assembly containing key components such as a motor assembly, mounting assembly, light assembly, blades, and a quick-connect blade system.

[0007] Figure 2 A quick-connect blade system with a blade iron mounting base and a blade iron fixed to the mounting base is shown.

[0008] Figure 3This is a partially exploded 3D diagram of the iron in the blade.

[0009] Figure 4 This is an exploded perspective view of the blade iron mounting base and the blade iron itself.

[0010] Figure 5 This is a cross-sectional view of the blade iron and blade iron mounting base in the unlocked position.

[0011] Figure 6 This is a top view of the blade iron mounting base and blade iron in the unlocked position.

[0012] Figure 7 This is a top view of the blade iron mounting base and blade iron in the locked position.

[0013] Figure 8 This is a cross-sectional view of the blade iron and blade iron mounting base in the locked position. Detailed Implementation

[0014] This disclosure relates to a ceiling fan assembly, a corresponding kit, and components forming the assembly or kit. The resulting ceiling fan can be used, for example, in residential and commercial applications. Such applications can be indoors, outdoors, or both. While this specification is primarily directed to residential ceiling fans, it can also be applied to any environment that utilizes a fan or utilizes air movement to cool an area.

[0015] As used herein, the term "group" or "set" of elements can refer to any number of elements, including a single element. All directional references (e.g., radial, axial, near, far, up, down, upward, downward, left, right, lateral, front, back, top, bottom, above, below, vertical, horizontal, clockwise, counterclockwise, upstream, downstream, forward, rear, etc.) are used for identification purposes only to aid the reader's understanding of this disclosure and do not create limitation, particularly regarding the location, orientation, or use of any aspect of this disclosure described herein. Connection references (e.g., attachment, coupling, connection, and engagement) should be interpreted broadly and, unless otherwise specified, can include situations where there are intermediate members between a group of elements and where these elements can move relative to each other. Therefore, a connection reference does not necessarily mean that two elements are directly connected and fixed to each other. Exemplary figures are for illustrative purposes only, and the dimensions, positions, order, and relative sizes reflected in the figures may vary.

[0016] Now for reference Figure 1 The ceiling fan assembly 10 is shown as being able to be suspended from structure S. Structure S may be a ceiling. However, it should be understood that structure S is shown schematically and as an example only, and it may include any suitable building, structure S, residential, commercial premises, or other environment suitable for or where it is desired to use a ceiling fan to move air.

[0017] The ceiling fan assembly 10 includes a mounting assembly 12 and a ceiling fan 13, which has a motor assembly 14, a blade assembly 16, and a light assembly 18. A connecting assembly 20 can be used to secure any component of the mounting assembly 12, the motor assembly 14, and the light assembly 18 (including parts within each assembly) together. Although only one connecting assembly is shown and described, multiple connecting assemblies can be used to secure multiple components or parts together.

[0018] Mounting assembly 12 may include mounting bracket 22, hanger bracket 24, rod 26, and motor adapter 28. Mounting bracket 22 is typically first connected to structure S. Hanger bracket 24 connects rod 26 to mounting bracket 22 and may be physically integral with or mechanically fixed to mounting bracket 22. Hanger bracket 24 may include ball seat 30, and rod 26 may include ball 32 received within ball seat 30 to secure rod 26 to hanger bracket 24 while allowing rod 26 to pivot relative to hanger bracket 24. Motor adapter 28 may be configured to secure rod 26 to motor assembly 14, providing an indirect mounting method between rod 26 and motor assembly 14 compared to direct mounting. Mounting assembly 12 may have a top cover 34 to visually conceal mounting bracket 22 and hanger bracket 24.

[0019] Motor assembly 14 may include a motor 36 wholly or partially enclosed by a motor housing 37. Motor 36 includes a rotor 38, a stator 40, and a motor shaft 42. As shown, motor 36 is an external rotor motor, wherein the rotor 38 is externally coupled to the stator 40, and the stator 40 is fixed to the non-rotating motor shaft 42. Since the motor shaft 42 is non-rotating, the rotor 38 is rotatably coupled to the non-rotating motor shaft 42, for example, by means of one or more bearing assemblies (not shown). Although not shown in the figures, it is conceivable that motor 36 may be an internal rotor motor, wherein the rotor is fixed to a motor shaft that rotates with the rotor. Since an internal rotor motor has a rotating motor shaft, the stator may be connected to the rotating motor shaft via one or more bearing assemblies.

[0020] The blade assembly 16 may have one or more blades 44, which will be connected to the rotor 38 via a quick-connect blade system 46. In the case of an internal rotor motor, the blades 44 may be connected via blade irons 58 or similar structures connected to the rotor 38 or the rotary motor shaft 42.

[0021] The lamp assembly 18 may include a lamp housing 50 that carries a lighting source 52, such as an LED lamp or an LED array. Other lighting sources (like conventional light bulbs) may also be used in place of or in combination with LED light sources. For aesthetic purposes, a lampshade 54 may be attached to the lamp housing 50 and cover the lighting source 52. The lampshade 54 may be made of any suitable material (such as glass or plastic) and have any suitable transparency. The lamp housing 50 may also enclose a mechanical or digital switch for turning the lighting source 52 on / off / dimming and / or controlling the on / off / speed of the motor 36. Therefore, the lamp housing 50 may also be referred to as a switch housing, especially when the lighting source 52 is not included. In variations that do not include the lighting source 52, a cover (not shown, including an opaque cover) may be used instead of the lampshade 54.

[0022] refer to Figure 2 The diagram illustrates a quick-connect blade system 46, which includes a blade mount 56 fixed to a rotor 38 and a blade mount 58 fixed to the blade mount 56. The blade mount 58 extends between a proximal end 60 configured to abut a blade 44 and a distal end 62 configured to be mounted to the rotor 38. The blade mount 58 includes a connection portion 64 located at the distal end 62, which connects to the rotor 38 at the bottom end 66. The connection portion 64 may include a pair of studs 68, 70 that may extend axially toward the rotor 38.

[0023] The blade mount 56 includes a support 72 supported on the rotor 38, shown in an annular form, but its shape is not limited to annular. The support 72 has a pair of spaced-apart slots 74, 76 and a latching spring 78, such that multiple pairs of spaced-apart slots 74, 76 and multiple latching springs 78 are arranged radially around the support 72. The pair of spaced-apart slots 74, 76 are a pair of keyhole-shaped slots with receiving slots 80 extending from slot ends 81 and terminating in insertion holes 82. The diameter 83 of the insertion hole 82 is greater than the width 85 of the receiving slots 80, which is measured laterally across the support 72. In some instances, as shown, a recess or third slot 84 may be formed in the support 72 between the pair of spaced-apart slots 74, 76.

[0024] The latching spring 78 can be mounted to the bracket 72 in a configuration alternating with a pair of spaced-apart slots 74, 76. That is, the latching spring 78 can be located between two of the two spaced-apart slots 74, 76. The latching spring 78 has a first end 86 fixed to the blade iron mounting base 56 and a second end 88 located below the blade iron 58. The latching spring 78 is configured to move between an initial unbiased state and a biased state; in the initial unbiased state, the latching spring 78 extends downward from the first end 86 to the second end 88; in the biased state, the latching spring 78 deflects.

[0025] The support 72 may include a first set of radial segments 90 and a second set of radial segments 92. As shown, the second set of radial segments 92 is positioned around the support 72 in an alternating configuration with the first set of radial segments 90. The first set of radial segments 90 may be axially spaced from the rotor 38 to define an intermediate gap 94 between the first set of radial segments 90 and the bottom end 66 of the rotor 38. At least some of the radial segments in the first set of radial segments 90 may include a pair of spaced-apart slots 74, 76, a latching spring 78, or a combination thereof.

[0026] The second set of radial segments 92 abuts against the rotor 38. The second set of radial segments 92 is secured to the rotor 38 such that a set of fasteners 95 passes through at least some of the radial segments of the second set of radial segments 92 to connect the bracket 72 to the rotor 38.

[0027] refer to Figure 3 The details of the quick-connect blade system 46 are shown and described in more detail. The connecting portion 64 has a collar 96 and a support lug 98 extending radially from the collar 96 to enable mounting of the blade iron 58. The support lug 98 has: a support body 100 defining a spring-loaded recess 102; an inner band element 104 adjacent to the spring-loaded recess 102; and a pair of through holes 106, 108 receiving a pair of studs 68, 70.

[0028] As shown in the figure, the spring-loaded recess 102 is defined in the upper surface 110 of the support body 100 and is located between a pair of through holes 106, 108. The spring-loaded recess 102 is shaped to conform to a portion of the latching spring 78.

[0029] The inner band element 104 is a stepped portion of the support body 100 that extends into and partially defines the spring-loaded recess 102. Therefore, the inner band element 104 forms an impact portion 112 that faces the latching spring 78 when the connecting portion 64 begins to be received by the bracket 72.

[0030] A release opening 114 formed in the support body 100 can be connected to the spring latching recess 102. The release opening 114 is configured to allow the user to release the latching spring 78 from the spring latching recess 102.

[0031] For illustrative purposes, stud 68 is shown separated from through hole 106, and stud 70 is shown assembled with through hole 108. It is conceivable that both studs 68 and 70 can be pre-assembled with through holes 106 and 108. These studs 68 and 70 are in the form of shouldered screws, with the shank 120 terminating at a head 122. The diameter 140 of the head 122 is smaller than the diameter 83 of the insertion hole 82 and larger than the width 85 of the receiving slot 80. The diameter 144 of the shank 120 is smaller than the width 85 of the receiving slot 80.

[0032] When studs 68 and 70 are assembled with through holes 106 and 108, the rod 120 extends through the support body 100, such that the head 122 of the rod 120 is spaced apart from the upper surface 110 of the support body, as shown by stud 70.

[0033] The studs 68 and 70, assembled with the through holes 106 and 108, are configured to complement the arrangement of the spaced-apart slots 74 and 76. In the example shown, the support lug 98 includes a third stud 124 located between the pair of studs 68 and 70, which is configured to be received into the third slot 84.

[0034] Now proceed to install blade iron 58 onto blade iron mounting base 56, refer to... Figure 4 The bracket 72 of the blade iron mounting seat 56, carried by the rotor 38, initially has a latching spring 78 in an unbiased state. A pair of studs 68, 70 of the blade iron 58 can be received in a pair of spaced slots 74, 76 in the bracket 72 by visually aligning the heads 122 of the studs 68, 70 with the corresponding insertion holes 82. The pair of studs 68, 70 can then be axially guided into the insertion holes 82.

[0035] Figure 5 The diagram shows a stud 70 received in a slot 76 and a latching spring 78 in a biased state. As the studs 68 and 70 pass through the insertion hole 82, the second end 88 of the latching spring 78 engages with a portion of the spring engagement recess 102 adjacent to the upper surface 110 of the support body, deflecting the latching spring 78. When the head 122 of the studs 68 and 70 is in the intermediate gap 94, a portion of the rod 120 is received in the insertion hole 82, and the studs 68 and 70 can then move into the receiving slot 80.

[0036] refer to Figure 6Another view shows the studs 68, 70 received in the insertion hole 82. The head 122 is wider than the receiving slot 80 and cannot pass through the receiving slot 80; however, the rod 120 can easily pass through the receiving slot 80 to contact the slot end 81.

[0037] Turn Figure 7 The blade iron 58 can slide radially outward relative to the blade iron mounting base 56 toward the proximal end 60 of the blade iron 58 (or alternatively, the blade iron 58 can slide radially inward toward the distal end 62 of the blade iron 58). When the head 122 passes through the insertion hole 82 and a portion of the rod 120 is located in the insertion hole 82, the studs 68, 70 can then be moved into the corresponding receiving slot 80 by moving the blade iron 58 radially outward and abutting the rod 120 against the slot end 81 of the receiving slot 80.

[0038] refer to Figure 8 By moving the second end 88 of the latch spring 78 into the spring engagement recess 102, causing the second end 88 to contact (confront) the impact portion 112, the radial sliding of the blade iron 58 reduces the deflection of the latch spring 78. The impact portion 112 prevents the blade iron 58 from moving radially inward / outward, thereby effectively securing the blade iron 58 in the locked position. The contact of the latch spring 78 with the impact portion 112 can produce an audible and tactile "click" or "snap" sound to provide tactile feedback to the user during assembly.

[0039] To remove the blade 58 from the blade mount 56, the latch spring 78 can be removed from the spring latch recess 102 by passing a tool (e.g., a screwdriver tip) through the release opening 114 and pushing against the second end 88 of the latch spring 78 until the second end 88 moves away from the impact portion 112 and is released from the spring latch recess 102.

[0040] When assembling the blade assembly into the motor assembly within the ceiling fan, the blade mount 56, blade 58, and their components, as described herein, allow for easy and simple connection of the blade 58 to the rotor 38. The blade mount 56 facilitates the installation of the ceiling fan 13 by making it easy to install the blade 58 to the rotor 38 and by providing visual, auditory, and tactile feedback to the user to indicate assembly. Furthermore, the blade mount 56 and the connected blade 58 are enhanced to resist movement through the latching engagement of the latch spring 78 in the spring engagement recess 102. Additionally, the release opening 114 of the blade 58 facilitates removal of the blade 58 from the rotor 38, allowing the user to easily replace or repair damaged parts, or otherwise remove and reassemble the blade 58 to the rotor 38.

[0041] Throughout this disclosure, suitable fasteners for securing various components are described. Such fasteners can be of any type. In many cases, suitable fasteners are screws or bolts. If a bolt is used, the opening into which the bolt is screwed will be a threaded opening with complementary threads for receiving the bolt.

[0042] Although not shown in any of the accompanying drawings, a controller may be electrically connected to a power source of structure S to control the operation of ceiling fan assembly 10. Alternatively, the controller may be wirelessly or communicatively connected to ceiling fan assembly 10, configured to remotely control the operation of ceiling fan assembly 10 without a dedicated connection. Non-limiting examples of controlling ceiling fan assembly 10 may include fan speed, fan direction, or light operation. Furthermore, a standalone wireless controller may be communicatively connected to the controller or wireless receiver in ceiling fan assembly 10, either alone or in conjunction with a wired controller, to control operation. In an alternative embodiment, it is also conceivable that ceiling fan assembly 10 may be operated solely by a wireless controller and not operatively connected to a wired controller.

[0043] Within the scope not described, different features and the structures of various features may be combined as needed. The fact that a feature is not shown in all aspects of this disclosure does not imply that it cannot be shown in all aspects, but rather for the sake of brevity. Therefore, various features of different aspects described herein may be mixed and matched as needed to form new features or aspects thereof, whether or not the new aspects or features are explicitly described. This disclosure covers all combinations or permutations of the features described herein.

[0044] This written description uses examples to elaborate on the various aspects described herein (including best practices) and to enable any person skilled in the art to practice the various aspects described herein, including making and using any apparatus or system and performing any combined methods. The patentable scope of the various aspects described herein is defined by the claims and may include other examples that would occur to a person skilled in the art. Such other examples are intended to fall within the scope of the claims if they have structural elements that are not different from the literal language of the claims, or if they include equivalent structural elements that are not substantially different from the literal language of the claims.

[0045] Other aspects are provided by the subject of the following clauses:

[0046] A ceiling fan includes: a motor having a rotor; a blade mounting base supported by the rotor and having a pair of spaced-apart slots and a latching spring; a blade having a pair of studs complementary to the spaced-apart slots and an impact portion partially defining a spring-locking recess; wherein the latching spring, the spring-locking recess, and the impact portion are arranged such that after the studs are located in the spaced-apart slots, radial outward movement of the blade causes the latching spring to deflect onto the impact portion, wherein the latching spring deflects into the spring-locking recess, and the impact portion prevents radial inward movement of the blade.

[0047] According to any of the foregoing clauses, the ceiling fan wherein a pair of spaced-apart slots includes a pair of keyhole-shaped slots.

[0048] According to any of the foregoing clauses, a ceiling fan in which a pair of studs includes a shoulder screw having a shank and a head having a diameter greater than that of the shank.

[0049] According to any of the foregoing clauses, the ceiling fan includes a keyhole-shaped slot that terminates in an insertion hole with a diameter greater than the width of the slot, wherein the diameter of the head is smaller than the diameter of the insertion hole and larger than the width of the slot, and the diameter of the rod is smaller than the width of the slot.

[0050] A ceiling fan according to any of the foregoing clauses, wherein at least a portion of the latching spring is radially positioned between a pair of spaced-apart slots.

[0051] According to any of the foregoing clauses, the ceiling fan has a first end fixed to the blade iron mounting base and a second end located below the blade iron.

[0052] According to any of the foregoing clauses, the latch spring extends downward from the first end to the second end in an unbiased state.

[0053] A ceiling fan according to any of the foregoing clauses, wherein the blade iron includes an inner belt element forming an impact portion.

[0054] According to any of the foregoing clauses, the ceiling fan blades have a release opening connected to a spring latching recess, the release opening being located below the latching spring.

[0055] A ceiling fan includes: a motor having a rotor; a blade mounting base including a bracket for mounting to the rotor, the bracket having a plurality of radially arranged pairs of spaced-apart slots and a latching spring; a blade having a pair of studs complementary to the spaced-apart slots and an impact portion partially defining a spring-locking recess, each stud having a shank terminating at a head; wherein the latching spring, the spring-locking recess, and the impact portion are arranged such that after the shank is located in the spaced-apart slot, radial outward movement of the blade causes the latching spring to deflect onto the impact portion, wherein the latching spring deflects into the spring-locking recess, and the impact portion prevents radial inward movement of the blade.

[0056] According to any of the foregoing clauses, the ceiling fan includes a first set of radial segments axially spaced from the rotor to define an intermediate gap, and the head is located in the intermediate gap after the rod portion is located in the spaced slot.

[0057] A ceiling fan according to any of the foregoing clauses, wherein the bracket includes a second set of radial sections that abut against the rotor.

[0058] A ceiling fan according to any of the foregoing clauses, wherein at least some of the radial segments in the second set of radial segments are fixed to the rotor.

[0059] A ceiling fan according to any of the foregoing clauses, wherein a first set of radial segments and a second set of radial segments are arranged alternately around a support.

[0060] According to any of the foregoing clauses, the ceiling fan wherein a pair of spaced-apart slots is a pair of keyhole-shaped slots, the pair of keyhole-shaped slots having a receiving slot terminating at an insertion hole.

[0061] A ceiling fan according to any of the foregoing clauses, wherein the diameter of the insertion hole is greater than the width of the receiving slot, wherein the diameter of the head is less than the diameter of the insertion hole but greater than the width of the receiving slot, and the diameter of the rod is less than the width of the receiving slot.

[0062] A ceiling fan according to any of the foregoing clauses, wherein at least a portion of the latching spring is radially positioned between a pair of spaced-apart slots.

[0063] According to any of the foregoing clauses, the ceiling fan has a first end fixed to the blade iron mounting base and a second end located below the blade iron.

[0064] A ceiling fan according to any of the foregoing clauses, wherein the blade iron includes an inner belt element forming an impact portion.

[0065] According to any of the foregoing clauses, the ceiling fan blades have a release opening connected to a spring latching recess, the release opening being located below the latching spring.

Claims

1. A ceiling fan, comprising: A motor, which has a rotor; The blade iron mounting base is supported by the rotor and has a pair of spaced slots and a latching spring; as well as The blade iron has a pair of studs complementary to the spaced slots and an impact portion that partially defines the spring-loaded recess; The latching spring, the spring-locking recess, and the impact portion are arranged such that after the stud is located in the spaced-out slot, the radial outward movement of the blade iron causes the latching spring to deflect onto the impact portion, wherein the latching spring deflects into the spring-locking recess, and the impact portion prevents the blade iron from moving radially inward.

2. The ceiling fan according to claim 1, wherein, The pair of spaced slots includes a pair of keyhole-shaped slots.

3. The ceiling fan according to claim 2, wherein, The pair of studs includes a shouldered screw, the shouldered screw having a shank and a head with a diameter larger than the shank.

4. The ceiling fan according to claim 3, wherein, The keyhole-shaped slot includes a receiving slot that terminates at an insertion hole with a diameter greater than the width of the receiving slot. The diameter of the head is smaller than the diameter of the insertion hole but larger than the width of the receiving slot, and the diameter of the rod is smaller than the width of the receiving slot.

5. The ceiling fan according to claim 4, wherein, At least a portion of the latching spring is radially positioned between a pair of spaced-apart slots.

6. The ceiling fan according to claim 5, wherein, The latching spring has a first end fixed to the blade iron mounting base and a second end located below the blade iron.

7. The ceiling fan according to claim 6, wherein, The latching spring extends downward from the first end to the second end in the unbiased state.

8. The ceiling fan according to claim 1, wherein, The blade iron includes an inner band element that forms the impact portion.

9. The ceiling fan according to claim 8, wherein, The blade has a release opening that connects to the spring latching recess, the release opening being located below the latching spring.

10. A ceiling fan, comprising: A motor, which has a rotor; The blade mounting base includes a bracket for mounting to the rotor, the bracket having multiple sets of radially arranged pairs of spaced slots and a latching spring; as well as The blade iron has a pair of studs complementary to the spaced slots and an impact portion that partially defines the spring-loaded recess, each stud having a rod portion terminating at the head; The latching spring, the spring engaging recess, and the impact portion are arranged such that after the rod portion is located in the spaced-out slot, the radial outward movement of the blade iron causes the latching spring to deflect onto the impact portion, wherein the latching spring deflects into the spring engaging recess, and the impact portion prevents the blade iron from moving radially inward.

11. The ceiling fan according to claim 10, wherein, The support includes a first set of radial segments axially spaced from the rotor to define an intermediate gap, and the head is located in the intermediate gap after the rod portion is located in the spaced slot.

12. The ceiling fan according to claim 11, wherein, The support includes a second set of radial sections that abut against the rotor.

13. The ceiling fan according to claim 12, wherein, At least some of the radial segments in the second group are fixed to the rotor.

14. The ceiling fan according to claim 13, wherein, The first set of radial segments and the second set of radial segments are arranged alternately around the support.

15. The ceiling fan according to claim 14, wherein, The pair of spaced slots are a pair of keyhole-shaped slots, the pair of keyhole-shaped slots having a receiving slot terminating at the insertion hole.

16. The ceiling fan according to claim 15, wherein, The diameter of the insertion hole is greater than the width of the receiving slot, wherein the diameter of the head is smaller than the diameter of the insertion hole but larger than the width of the receiving slot, and the diameter of the rod is smaller than the width of the receiving slot.

17. The ceiling fan according to claim 16, wherein, At least a portion of the latching spring is radially positioned between a pair of spaced-apart slots.

18. The ceiling fan according to claim 17, wherein, The latching spring has a first end fixed to the blade iron mounting base and a second end located below the blade iron.

19. The ceiling fan according to claim 18, wherein, The blade iron includes an inner band element that forms the impact portion.

20. The ceiling fan according to claim 19, wherein, The blade has a release opening that connects to the spring latching recess, the release opening being located below the latching spring.

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