Oscillating mechanism and fan having the same

Abstract

The present invention provides an oscillating mechanism and a fan having the same. The oscillating mechanism is connected to a head of the fan to drive the head to rotate around a predetermined axis. The oscillating mechanism comprises: a first component, a first end of the first component is connected to the head to drive the head to rotate; a driving assembly, at least a portion of the driving assembly is installed in a base of the fan, the driving assembly is connected to the first component to drive the first component to rotate; a second component, the first component is provided with an installation cavity, at least a portion of the second component is installed in the installation cavity to support the first component; a bearing assembly, at least a portion of the bearing assembly is installed in the installation cavity and is located between the first component and the second component, a positioning portion is provided in the installation cavity, the positioning portion is fixed on the inner wall of the installation cavity, the positioning portion abuts against at least a portion of the bearing assembly to position the bearing assembly at a predetermined position of the installation cavity, so as to solve the problem of low service life of the oscillating mechanism in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of mechanical design, and in particular to an oscillating mechanism and a fan having the same. Background Art

[0002] At present, the shaking structure of most electric fans on the market is located on the head. When the head of the fan is in a non-horizontal state, the center of gravity of the head will not be in the same horizontal plane. Due to the influence of gravity, the synchronous motor will be affected by alternating stress, and the life of the synchronous motor will be greatly reduced under the influence of alternating stress.

[0003] In addition, the synchronous motor and the connecting rod mechanism occupy a large space in the head part, making the head part bulky and affecting the overall aesthetics. In addition, the shaking angle and shaking speed of the electric fan cannot be adjusted, affecting the actual user experience. Summary of the invention

[0004] The main purpose of the present invention is to provide an oscillating mechanism and a fan having the same, so as to solve the problem of low service life of the oscillating mechanism in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an oscillating mechanism connected to the head of the fan to drive the head to rotate around a predetermined axis, the oscillating mechanism comprising: a first component, a first end of the first component is connected to the head to drive the head to rotate; a driving assembly, at least a portion of the driving assembly is installed in the base of the fan, the driving assembly is connected to the first component to drive the first component to rotate; a second component, the first component is provided with an installation cavity, at least a portion of the second component is installed in the installation cavity to support the first component; a bearing assembly, at least a portion of the bearing assembly is installed in the installation cavity and is located between the first component and the second component, a positioning portion is provided in the installation cavity, the positioning portion is fixed on the inner wall of the installation cavity, the positioning portion abuts against at least a portion of the bearing assembly to position the bearing assembly at a predetermined position of the installation cavity.

[0006] Further, the bearing assembly includes a first bearing; the positioning portion includes: a first positioning member, the first positioning member extends along the extension direction of the installation cavity, the first positioning member is provided with a first positioning step, and the first positioning step is engaged with at least a portion of the first bearing.

[0007] Furthermore, there are a plurality of first positioning members, and the plurality of first positioning members are arranged around the second component to form an accommodation space for accommodating the first bearing between the first positioning steps of the plurality of first positioning members.

[0008] Furthermore, the first positioning member is a positioning plate rib.

[0009] Further, the bearing assembly includes a second bearing, and the positioning portion includes: a second positioning member, the second positioning member extends along the extension direction of the installation cavity, and the second positioning member is provided with a second positioning step, and the second positioning step is engaged with at least a portion of the second bearing.

[0010] Furthermore, there are multiple second positioning members, and the multiple second positioning members are arranged around the second component to form an accommodating space for accommodating the second bearing between the second positioning steps of the multiple second positioning members.

[0011] Furthermore, the second positioning member is a positioning plate rib.

[0012] Furthermore, a support plate is provided in the installation cavity, the support plate extends from the side wall of the installation cavity toward the second component, and at least a portion of the second positioning member extends onto the support plate to support the second bearing through the support plate.

[0013] Further, the positioning portion includes: a first positioning member, the first positioning member extends along the extension direction of the installation cavity, the first positioning member is provided with a first positioning step, and at least a portion of the bearing assembly is installed in the first positioning step; a second positioning member, the second positioning member extends along the extension direction of the installation cavity, the second positioning member is provided with a second positioning step, and at least a portion of the bearing assembly is installed in the second positioning step; a support plate, the support plate extends from the side wall of the installation cavity toward the second component, the first positioning member and the second positioning member are respectively arranged on both sides of the support plate, and the first positioning member and the second positioning member are respectively connected to the support plate.

[0014] Furthermore, at least part of the bearing assembly is installed on the top of the second component; the shaking mechanism also includes: a clamping member, which is installed on the top of the second component, and after at least part of the bearing assembly is installed, the clamping member is pressed on at least part of the bearing assembly.

[0015] Furthermore, a connecting hole is provided at the top of the second component, and the shaking mechanism also includes: a connecting piece, at least a part of which is connected to the second component through the connecting hole, and a clamping piece is sleeved on the connecting piece so that the clamping piece is installed on the second component through the connecting piece.

[0016] According to another aspect of the present invention, a fan is provided, comprising a base and an oscillating mechanism, at least part of which is installed in the base, and the oscillating mechanism is the oscillating mechanism described above.

[0017] By applying the technical solution of the present invention, an oscillating mechanism provided by the present invention is connected to the head of the fan to drive the head to rotate around a predetermined axis. The oscillating mechanism includes a first component, a second component, a driving assembly and a bearing assembly. The first end of the first component is connected to the head to drive the head to rotate. At least a portion of the driving assembly is installed in the base of the fan. The driving assembly is connected to the first component to drive the first component to rotate. An installation cavity is provided on the first component. At least a portion of the second component is installed in the installation cavity to support the first component. At least a portion of the bearing assembly is installed in the installation cavity and is located between the first component and the second component. A positioning portion is provided in the installation cavity. The positioning portion is fixed on the inner wall of the installation cavity. The positioning portion abuts against at least a portion of the bearing assembly to position the bearing assembly at a predetermined position of the installation cavity. The structure is simple and easy to implement. The first component and the second component are supported by the bearing assembly, and the bearing assembly is conveniently positioned by the positioning portion to extend the service life of the first component and the second component, thereby solving the problem of low service life of the oscillating mechanism in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic structural diagram showing an embodiment of an oscillating head mechanism according to the present invention; and

[0020] Figure 2 An exploded view of a shaking head mechanism according to the present invention is shown;

[0021] Figure 3 A schematic structural diagram showing an embodiment of a first component according to a first viewing angle of the present invention;

[0022] Figure 4 A schematic structural diagram of an embodiment of a first component according to a second viewing angle of the present invention is shown;

[0023] Figure 5 A schematic structural diagram of an embodiment of a connecting piece according to the present invention is shown;

[0024] Figure 6 A schematic structural diagram of an embodiment of a transmission member according to the present invention from a first viewing angle is shown;

[0025] Figure 7 A schematic structural diagram of an embodiment of a transmission member according to a second viewing angle of the present invention is shown;

[0026] Figure 8 A schematic structural diagram of an embodiment of a friction pad according to the present invention is shown;

[0027] Fig. 9 A schematic structural diagram of an embodiment of a base plate according to the present invention is shown;

[0028] Fig.10 A schematic structural diagram of an embodiment of a fan according to the present invention is shown.

[0029] The above drawings include the following reference numerals:

[0030] 1. Machine head; 2. Base; 10. First component; 101. Installation cavity; 102. First wire passing port;

[0031] 20. driving assembly; 21. transmission member; 210. accommodation space; 211. transmission tooth groove; 212. positioning groove; 213. second wire-passing opening; 214. through hole; 215. limiting groove;

[0032] 30. Second component; 301. Boss; 31. Connecting member; 32. Pressing member; 33. Connecting hole; 40. Friction pad; 401. Groove; 50. Bottom plate; 501. Limiting plate; 60. Bearing assembly; 61. First bearing; 62. Second bearing; 80. Support plate; 90. Positioning portion; 91. First positioning member; 910. First positioning step; 92. Second positioning member; 920. Second positioning step. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] The present invention provides a shaking mechanism, please refer to Figures 1 to 10 , connected to the head 1 of the fan to drive the head 1 to rotate around a predetermined axis, the shaking mechanism includes: a first component 10, a first end of the first component 10 is connected to the head 1 to drive the head 1 to rotate; a driving component 20, at least a portion of the driving component 20 is installed in the base 2 of the fan, the driving component 20 is connected to the first component 10 to drive the first component 10 to rotate; a second component 30, a mounting cavity 101 is provided on the first component 10, at least a portion of the second component 30 is installed in the mounting cavity 101 to support the first component 10; a bearing component 60, at least a portion of the bearing component 60 is installed in the mounting cavity 101 and is located between the first component 10 and the second component 30, a positioning portion 90 is provided in the mounting cavity 101, the positioning portion 90 is fixed on the inner wall of the mounting cavity 101, and the positioning portion 90 abuts against at least a portion of the bearing component 60 to position the bearing component 60 at a predetermined position of the mounting cavity 101.

[0035] The oscillating mechanism provided by the present invention is connected to the head 1 of the fan to drive the head 1 to rotate around a predetermined axis. The oscillating mechanism includes a first component 10, a second component 30, a driving assembly 20 and a bearing assembly 60. The first end of the first component 10 is connected to the head 1 to drive the head 1 to rotate. At least a portion of the driving assembly 20 is installed in the base 2 of the fan. The driving assembly 20 is drivingly connected to the first component 10 to drive the first component 10 to rotate. The first component 10 is provided with a mounting cavity 101. At least a portion of the second component 30 is installed in the mounting cavity 101 to support the first component 10. At least a portion of the bearing assembly 60 The first component 10 and the second component 30 are installed in the installation cavity 101 and are located between the first component 10 and the second component 30. A positioning portion 90 is provided in the installation cavity 101. The positioning portion 90 is fixed on the inner wall of the installation cavity 101. The positioning portion 90 abuts against at least part of the bearing assembly 60 to position the bearing assembly 60 at a predetermined position in the installation cavity 101. The structure is simple and easy to implement. The first component 10 and the second component 30 are supported by the bearing assembly 60, and the bearing assembly 60 is conveniently positioned by the positioning portion 90 to extend the service life of the first component 10 and the second component 30, thereby solving the problem of low service life of the shaking head mechanism in the prior art.

[0036] In the embodiments provided by the present invention, Figures 1 to 4 As shown, the bearing assembly 60 includes a first bearing 61; the positioning portion 90 includes: a first positioning member 91, the first positioning member 91 extends along the extension direction of the mounting cavity 101, and a first positioning step 910 is provided on the first positioning member 91, and the first positioning step 910 is engaged with at least part of the first bearing 61 to position the first bearing 61.

[0037] In a specific implementation, there are multiple first positioning members 91 , and the multiple first positioning members 91 are arranged around the second component 30 to form an accommodating space for accommodating the first bearing 61 between the first positioning steps 910 of the multiple first positioning members 91 to further restrict the first bearing 61 .

[0038] Preferably, the first positioning member 91 is a positioning plate rib.

[0039] Specifically, the bearing assembly 60 includes a second bearing 62, and the positioning portion 90 includes: a second positioning member 92, the second positioning member 92 extends along the extension direction of the mounting cavity 101, and a second positioning step 920 is provided on the second positioning member 92, and the second positioning step 920 is engaged with at least part of the second bearing 62 to position the second bearing 62.

[0040] In a specific implementation, there are multiple second positioning members 92 , and the multiple second positioning members 92 are arranged around the second component 30 to form an accommodating space for accommodating the second bearing 62 between the second positioning steps 920 of the multiple second positioning members 92 .

[0041] Preferably, the second positioning member 92 is a positioning plate rib.

[0042] In order to prevent the second bearing 62 from moving along the extension direction of the installation cavity 101, a support plate 80 is provided in the installation cavity 101. The support plate 80 extends from the side wall of the installation cavity 101 toward the second component 30. At least part of the second positioning member 92 extends onto the support plate 80 to support the second bearing 62 through the support plate 80.

[0043] In another embodiment provided by the present invention, the positioning portion 90 includes: a first positioning member 91, the first positioning member 91 extends along the extension direction of the installation cavity 101, and a first positioning step 910 is provided on the first positioning member 91, and at least a portion of the bearing assembly 60 is installed in the first positioning step 910; a second positioning member 92, the second positioning member 92 extends along the extension direction of the installation cavity 101, and a second positioning step 920 is provided on the second positioning member 92, and at least a portion of the bearing assembly 60 is installed in the second positioning step 920; a support plate 80, the support plate 80 extends from the side wall of the installation cavity 101 toward the second component 30, the first positioning member 91 and the second positioning member 92 are respectively arranged on both sides of the support plate 80, and the first positioning member 91 and the second positioning member 92 are respectively connected to the support plate 80.

[0044] like Figure 1 and Figure 5 As shown, at least part of the bearing assembly 60 is installed on the top of the second component 30; the shaking mechanism also includes: a clamping member 32, which is installed on the top of the second component 30. After at least part of the bearing assembly 60 is installed, the clamping member 32 is pressed on at least part of the bearing assembly 60.

[0045] Specifically, a connecting hole 33 is provided at the top of the second component 30, and the shaking mechanism also includes: a connecting member 31, at least a portion of the connecting member 31 is connected to the second component 30 through the connecting hole 33, and a clamping member 32 is sleeved on the connecting member 31, so that the clamping member 32 is installed on the second component 30 through the connecting member 31; preferably, the connecting member 31 is a connecting bolt, and the clamping member 32 is a gasket, which is sleeved on the connecting bolt, and the bolt head is pressed on the second bearing 62 through the gasket.

[0046] The driving assembly 20 includes: a transmission member 21, the transmission member 21 has a receiving space 210, at least a portion of the transmission member 21 is sleeved on the second end of the first component 10 through the receiving space 210 to be connected to the first component 10; a driving member, the driving member is drivingly connected to the transmission member 21 to drive the transmission member 21 to rotate, so as to drive the first component 10 to rotate through the transmission member 21. This arrangement can more conveniently connect the transmission member 21 to the first component 10, so as to drive the first component 10 to rotate.

[0047] Preferably, a transmission tooth groove 211 is provided on the transmission member 21, and the transmission tooth groove 211 is arranged around the axis of the transmission member 21. The driving member has an active tooth groove meshing with the transmission tooth groove 211, so that the transmission member 21 is driven to rotate by the engagement of the active tooth groove with the transmission tooth groove 211. Such a structure is simple and easy to install. While being able to drive the first component 10 to rotate, the meshing transmission reliability of the transmission tooth groove 211 and the active tooth groove is high, the transmission is stable and easy to maintain. Preferably, the driving member has a driving motor, and the driving motor drives the transmission tooth groove 211 to mesh with the active tooth groove, so as to facilitate the adjustment of the rotation angle and rotation speed of the first component 10.

[0048] In order to facilitate the connection between the first component and the transmission member 21, a positioning column is provided at the second end of the first component 10, and a positioning groove 212 is provided on the transmission member 21. At least part of the positioning column is installed in the positioning groove 212 to position the first component 10 to ensure that the transmission tooth groove 211 is engaged with the active tooth groove for transmission. Preferably, a plurality of positioning columns are provided, and the plurality of positioning columns are arranged around the axis of the transmission member 21. There are a plurality of positioning grooves 212, and the plurality of positioning grooves 212 are provided one-to-one with the plurality of positioning columns.

[0049] In a specific implementation, a threaded hole is opened on the positioning column, and the positioning groove 212 includes a screw through hole. The threaded hole and the screw through hole are arranged relative to each other, so that at least a part of the connecting screw is passed through the screw through hole and the threaded hole in sequence to connect the transmission member 21 and the first component 10, thereby facilitating the connection between the first component 10 and the transmission member 21 while realizing the positioning of the first component 10 and the transmission member 21.

[0050] In the embodiment provided by the present invention, a first wire passing opening 102 is provided on the second end of the first component 10, and a second wire passing opening 213 is provided on the transmission member 21; when the first component 10 is connected with the transmission member 21, the first wire passing opening 102 and the second wire passing opening 213 are spliced ​​to form a passing space for the wire to pass through, so that the wire can be conveniently connected to the driving assembly to avoid interference between the wire and other components.

[0051] like Figure 6 and Figure 7 As shown, the transmission member 21 is provided with a through hole 214 for the second member 30 to pass through, and the hole wall of the through hole 214 protrudes toward the direction of the first member 10. The hole wall of the through hole 214 is provided with an avoidance opening, which is opposite to the second wire passing opening 213 to avoid the wire when the wire passes through the through space to prevent the wire from being squeezed by the hole wall and the wire when it is bent, wherein the first bearing 61 is clamped between the first positioning member 91 and the driving assembly 20, specifically, the first bearing 61 is clamped between the first positioning member 91 and the transmission member 21 to stabilize the first bearing 61.

[0052] Specifically, in order to limit the rotational stroke of the machine head, a limiting groove 215 is provided on the transmission member 21, and the limiting groove 215 extends around the axis of the transmission member 21. The shaking mechanism also includes: a bottom plate 50, the bottom plate 50 is installed in the base 2, at least part of the transmission member 21 is installed on the bottom plate 50, and a limiting plate 501 is provided on the bottom plate 50, and at least part of the limiting plate 501 is installed in the limiting groove 215, so that when the transmission member 21 rotates, the limiting plate 501 moves along the extension direction of the limiting groove 215, so as to limit the rotational stroke of the transmission member 21 through the mutual stop between the limiting plate 501 and the side walls at both ends of the limiting groove 215.

[0053] like Fig. 9 As shown, a connecting hole is provided on the bottom plate 50 , and at least a portion of the second component 30 passes through the connecting hole and is fixedly connected to the bottom plate 50 . Preferably, the second component 30 and the bottom plate 50 are welded.

[0054] like Figure 8 As shown, the shaking mechanism also includes: a friction gasket 40. A receiving groove is provided on the transmission member 21, so that when the transmission member 21 is connected to the base plate 50, an installation space for installing the friction gasket 40 is formed between the receiving groove and the base plate 50. The friction gasket 40 reduces the wear between the transmission member 21 and the base plate 50, extends the service life of the transmission member 21, reduces the noise of the transmission member 21 during rotation, and enhances the user experience.

[0055] The friction pad 40 is sleeved on the second component 30 , and a boss 301 is provided at the end of the second component 30 ; a groove 401 matching with the boss 301 is provided on the friction pad 40 , so that the friction pad 40 is clamped on the boss 301 through the cooperation between the boss 301 and the groove 401 .

[0056] The present invention further provides a fan, comprising a base 2 and an oscillating mechanism, wherein at least a portion of the oscillating mechanism is installed in the base 2, and the oscillating mechanism is the oscillating mechanism of the above embodiment.

[0057] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0058] The oscillating mechanism provided by the present invention is connected to the head 1 of the fan to drive the head 1 to rotate around a predetermined axis. The oscillating mechanism includes a first component 10, a second component 30, a driving assembly 20 and a bearing assembly 60. The first end of the first component 10 is connected to the head 1 to drive the head 1 to rotate. At least a portion of the driving assembly 20 is installed in the base 2 of the fan. The driving assembly 20 is drivingly connected to the first component 10 to drive the first component 10 to rotate. The first component 10 is provided with a mounting cavity 101. At least a portion of the second component 30 is installed in the mounting cavity 101 to support the first component 10. At least a portion of the bearing assembly 60 The first component 10 and the second component 30 are installed in the installation cavity 101 and are located between the first component 10 and the second component 30. A positioning portion 90 is provided in the installation cavity 101. The positioning portion 90 is fixed on the inner wall of the installation cavity 101. The positioning portion 90 abuts against at least part of the bearing assembly 60 to position the bearing assembly 60 at a predetermined position in the installation cavity 101. The structure is simple and easy to implement. The first component 10 and the second component 30 are supported by the bearing assembly 60, and the bearing assembly 60 is conveniently positioned by the positioning portion 90 to extend the service life of the first component 10 and the second component 30, thereby solving the problem of low service life of the shaking head mechanism in the prior art.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oscillating mechanism connected to a head (1) of a fan to drive the head (1) to rotate around a predetermined axis, characterized in that: The shaking head mechanism comprises: A first component (10), wherein a first end of the first component (10) is connected to the machine head (1) to drive the machine head (1) to rotate; a driving assembly (20), at least a portion of which is mounted in the base (2) of the fan, and the driving assembly (20) is drivingly connected to the first component (10) to drive the first component (10) to rotate; a second component (30), wherein the first component (10) is provided with a mounting cavity (101), and at least a portion of the second component (30) is mounted in the mounting cavity (101) to support the first component (10); A bearing assembly (60), wherein at least a portion of the bearing assembly (60) is installed in the installation cavity (101) and is located between the first component (10) and the second component (30); a positioning portion (90) is provided in the installation cavity (101); the positioning portion (90) is fixed on an inner wall of the installation cavity (101); the positioning portion (90) abuts against at least a portion of the bearing assembly (60) so as to position the bearing assembly (60) at a predetermined position of the installation cavity (101); The bearing assembly (60) comprises a first bearing (61) and a second bearing (62); the positioning portion (90) comprises: a first positioning member (91), the first positioning member (91) extending along an extension direction of the mounting cavity (101), the first positioning member (91) being provided with a first positioning step (910), the first positioning step (910) being engaged with at least a portion of the first bearing (61); a second positioning member (92), the second positioning member (92) extending along an extension direction of the mounting cavity (101), the second positioning member (92) being provided with a second positioning step (920), the second positioning step (920) being engaged with at least a portion of the second bearing (62); There are a plurality of first positioning members (91), and the plurality of first positioning members (91) are arranged around the second component (30) so as to form an accommodation space for accommodating the first bearing (61) between the first positioning steps (910) of the plurality of first positioning members (91); There are a plurality of second positioning members (92), and the plurality of second positioning members (92) are arranged around the second component (30) so as to form an accommodation space between the second positioning steps (920) of the plurality of second positioning members (92) that is equivalent to accommodating the second bearing (62); A support plate (80) is disposed in the installation cavity (101), the support plate (80) extending from a side wall of the installation cavity (101) toward the second component (30), and at least a portion of the second positioning member (92) extends onto the support plate (80) so as to support the second bearing (62) through the support plate (80); The first positioning member (91) is a positioning plate rib; the second positioning member (92) is a positioning plate rib.

2. The oscillating mechanism according to claim 1, characterized in that: The positioning portion (90) comprises: a first positioning member (91), the first positioning member (91) extending along an extension direction of the mounting cavity (101), a first positioning step (910) being provided on the first positioning member (91), and at least a portion of the bearing assembly (60) being mounted in the first positioning step (910); a second positioning member (92), the second positioning member (92) extending along an extension direction of the mounting cavity (101), the second positioning member (92) being provided with a second positioning step (920), and at least a portion of the bearing assembly (60) being mounted in the second positioning step (920); A support plate (80), the support plate (80) extending from a side wall of the mounting cavity (101) toward the second component (30), the first positioning member (91) and the second positioning member (92) being respectively arranged on two sides of the support plate (80), and the first positioning member (91) and the second positioning member (92) being respectively connected to the support plate (80).

3. The oscillating mechanism according to claim 1 or 2, characterized in that: At least part of the bearing assembly (60) is mounted on the top of the second component (30); the shaking mechanism further comprises: A pressing piece (32), the pressing piece (32) being mounted on the top end of the second component (30), and after at least a portion of the bearing assembly (60) is installed, the pressing piece (32) is pressed against at least a portion of the bearing assembly (60).

4. The shaking mechanism according to claim 3, characterized in that: A connecting hole (33) is provided at the top of the second component (30), and the shaking mechanism further comprises: A connecting member (31), at least a portion of the connecting member (31) being connected to the second member (30) via the connecting hole (33), and the pressing member (32) being sleeved on the connecting member (31), so that the pressing member (32) is mounted on the second member (30) via the connecting member (31).

5. A fan, comprising a base (2) and an oscillating mechanism, wherein at least part of the oscillating mechanism is installed in the base (2), characterized in that: The oscillating mechanism is the oscillating mechanism according to any one of claims 1 to 4.

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