Air guide mechanism and air conditioner
By designing a dual-rotation-driven air guide mechanism in the air conditioner, the mounting end of the transmission assembly is located on the upper side of the air outlet, achieving greater angle flips and cold air wrapping of the air guide plate, which solves the limitation of the angle of the condensation and air guide plate The problem has improved the comfort and air support area of the air conditioner.
Patent Information
- Application Number
- CN202111602899.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-12-24
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2041-12-24
AI Technical Summary
The air guide plates of existing air conditioners are prone to condensation problems when air outlets. Due to the complex anti-condensation structure and the limitation of the driving mechanism, the flip angle of the air guide plate is limited, resulting in a small air support area and poor comfort.
A air guide mechanism is designed, including a transmission assembly and a air guide plate. The mounting end of the transmission assembly is located on the upper side of the air outlet. The dual rotational drive structure allows the air guide plate to be flipped at a higher angle. The cold air wraps the air guide plate to simplify the structure. Reduce rotation restrictions to achieve greater air support area and better comfort.
It effectively solves the condensation problem, simplifies the structure of the air guide plate, increases the flip angle and air support area of the air guide plate, improves the air supply comfort, and reduces cost and power consumption.
Smart Images

Figure CN114263981B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of air conditioning, and in particular to an air guide mechanism and an air conditioner. Background Art
[0002] With the improvement of consumption level, users' requirements for the comfort experience of air conditioners are also increasing. At present, the air guide plate mechanisms of air conditioners on the market are commonly divided into two types: rotary closed air guide mechanism and push-out air guide mechanism. The comfort experience of air conditioners depends to a large extent on the air guide mechanism of the air conditioner. In this regard, many air conditioner manufacturers are committed to optimizing the air guide mechanism of the air conditioner. On the one hand, by optimizing the air guide mechanism, they can solve the common problems in the industry such as cold wind blowing on people and condensation. On the other hand, by optimizing the design, they can reduce the cost of air conditioners.
[0003] However, the existing anti-condensation structure is relatively complex and is limited by the driving mechanism, which will result in a limited flip angle of the air guide plate, making it impossible to discharge air at an optimal angle, thereby reducing the wind-supporting area. Summary of the invention
[0004] Therefore, the technical problem to be solved by the present application is to provide an air guide mechanism and an air conditioner, which can solve the condensation problem of the air guide plate through structural design, simplify the anti-condensation structure, and make the air guide plate flip outward at a larger angle, so that the air guide plate has a larger wind-supporting area and better comfort.
[0005] In order to solve the above problems, the present application provides an air guide mechanism, which is arranged at the air outlet of the air conditioner, and includes a transmission assembly and an air guide plate. The mounting end of the transmission assembly is located on the upper side of the air outlet, and the air guide plate is arranged at the transmission end of the transmission rod assembly. When the air conditioner is in a cooling state, the transmission assembly sends the air guide plate out of the air outlet, and the air guide plate divides the air outlet from the air outlet into two parts, an upper part and an lower part, and the upper and lower parts of the air outlet wrap the air guide plate.
[0006] Preferably, the transmission assembly comprises a transmission rod, on which a connecting piece is provided, and the connecting piece is rotatably connected to the inner side surface of the air guide plate.
[0007] Preferably, the air guide mechanism also includes a first driving structure, a transmission rod is drivingly connected to the driving end of the first driving structure and is driven to rotate by the first driving structure, and the transmission assembly also includes a second driving structure, the second driving structure is connected between the transmission rod and the air guide plate, and is drivingly connected to the air guide plate to drive the air guide plate to rotate relative to the transmission rod.
[0008] Preferably, the first end of the transmission rod is provided with an axial hole, and the output end of the first driving structure is connected to the axial hole to form circumferential synchronous rotation.
[0009] Preferably, the first driving structure includes a first motor, a driving box, a box cover, a driving gear and a gear shaft. The driving gear and the gear shaft are meshed for transmission and are installed in the driving box. The box cover is disposed on the driving box. The output shaft of the motor is drivingly connected to the driving gear. The gear shaft extends out of the driving box from an end of the driving box away from the motor and is connected to the shaft hole of the transmission rod.
[0010] Preferably, the second driving structure includes a second motor, the second motor is mounted on one of the connecting members, and the second motor is drivingly connected to the air guide plate via an output shaft.
[0011] Preferably, a connecting ear plate is provided on the inner surface of the air guide plate, and a driving hole is provided on the connecting ear plate cooperating with the second motor, and the output shaft of the second motor extends into the driving hole to form a rotational driving connection with the connecting ear plate.
[0012] Preferably, the air guide mechanism further comprises a pressing plate, and the pressing plate mounts and fixes the second motor on the connecting member.
[0013] Preferably, the connecting member includes claws, and a plurality of claws are arranged at intervals along the axial direction of the transmission rod, at least one claw is connected to the first end of the air guide plate, at least one claw is connected to the second end of the air guide plate, and at least one claw is connected to the middle position of the air guide plate.
[0014] Preferably, the claw includes a connecting arm and a pin arranged at the end of the connecting arm away from the transmission rod, the pin includes a guide head and an annular groove arranged on the rear side of the guide head, a connecting ear plate is arranged on the inner surface of the air guide plate, an axial hole is arranged on the connecting ear plate, a rotating shaft is arranged at the end of the connecting arm, the rotating shaft is arranged in the upper axial hole, the pin is arranged at the end of the rotating shaft, and the connecting ear plate is axially limited.
[0015] Preferably, the latch includes a deformation groove, which extends axially from the first end of the latch toward the second end, and the guide head and the annular groove are both arranged within the axial range corresponding to the deformation groove.
[0016] According to another aspect of the present application, an air conditioner is provided, comprising an air guide structure, wherein the air guide mechanism is the above-mentioned air guide mechanism.
[0017] The air guide mechanism provided by the present application is arranged at the air outlet of the air conditioner, and includes a transmission component and an air guide plate. The mounting end of the transmission component is located at the upper side of the air outlet, and the air guide plate is arranged at the transmission end of the transmission rod component. When the air conditioner is in a cooling state, the transmission component sends the air guide plate out of the air outlet, and the air guide plate divides the air outlet of the air outlet into two parts, the upper and lower parts of the air outlet wrap the air guide plate. The mounting end of the transmission component of the air guide mechanism is arranged above the air outlet, which can facilitate the cold air wrapping the air guide plate under cooling conditions, effectively solve the condensation problem of the air guide plate, and can also use the structural feature that the mounting end of the transmission component is arranged on the upper side of the air guide plate to reduce the rotation restriction of the transmission component on the air guide plate, so that the angle of the air guide plate to flip outward is larger, the wind support area of the air guide plate is larger, and the comfort is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an air guide mechanism according to an embodiment of the present application;
[0019] Figure 2 This is a schematic structural diagram of an air guide mechanism according to an embodiment of the present application;
[0020] Figure 3 This is a schematic diagram of the exploded structure of an air guide mechanism according to an embodiment of the present application;
[0021] Figure 4 This is a schematic diagram of the assembly structure of an air guide mechanism according to an embodiment of the present application;
[0022] Figure 5 for Figure 4 A schematic structural diagram of the air guide mechanism viewed from the AA direction;
[0023] Figure 6 This is a schematic diagram of the exploded structure of the first driving structure of the air guide mechanism according to one embodiment of the present application;
[0024] Figure 7 This is a schematic diagram of the exploded structure of the second driving structure of the air guide mechanism according to one embodiment of the present application;
[0025] Figure 8 This is a schematic structural diagram of a latch of an air guide mechanism according to an embodiment of the present application.
[0026] The reference numerals are:
[0027] 1. Air outlet; 2. Air guide plate; 3. Transmission rod; 4. Connecting piece; 5. First motor; 6. Driving box; 7. Box cover; 8. Driving gear; 9. Gear shaft; 10. Second motor; 11. Connecting ear plate; 12. Pressing plate; 13. Clamping claw; 14. Connecting arm; 15. Latch; 16. Guide head; 17. Annular groove; 18. Deformation groove; 19. Bottom shell. DETAILED DESCRIPTION
[0028] See also Figures 1 to 8 As shown, according to an embodiment of the present application, an air guide mechanism is arranged at the air outlet 1 of the air conditioner, and the air guide mechanism includes a transmission assembly and an air guide plate 2, the mounting end of the transmission assembly is located at the upper side of the air outlet 1, and the air guide plate 2 is arranged at the transmission end of the transmission assembly, and the air guide plate 2 adopts a single-plate structure. When the air conditioner is in a cooling state, the transmission assembly sends the air guide plate 2 out of the air outlet 1, and the air guide plate 2 divides the air outlet of the air outlet 1 into two parts, an upper part and an lower part, and the upper and lower parts of the air wrap the air guide plate 2.
[0029] The mounting end of the transmission component of the air guide mechanism is arranged above the air outlet 1, which can conveniently realize that cold air wraps around the air guide plate 2 under cooling conditions, without adding anti-condensation structures such as sponges. The condensation problem of the air guide plate 2 can be effectively solved only by controlling the position of the air guide plate 2 when the air is out, thereby simplifying the structure of the air guide plate 2 and reducing the cost of the air guide plate. In addition, the air guide mechanism can also utilize the structural feature that the mounting end of the transmission component is arranged on the upper side of the air guide plate 2, reducing the rotation restriction of the transmission component on the air guide plate 2, so that the air guide plate 2 can flip outward at a larger angle, the air supporting area of the air guide plate 2 is larger, and the air supply comfort is better.
[0030] In one embodiment, the air guide plate 2 is a single-plate structure. Using the air guide plate 2 with a single-plate structure can simplify the air guide plate structure, reduce the number of parts, reduce the cost of parts, and also reduce the weight of parts and reduce power consumption.
[0031] In one embodiment, the transmission assembly includes a transmission rod 3, on which a connecting member 4 is provided, and the connecting member 4 is rotatably connected to the inner side surface of the air guide plate 2. In this embodiment, the connecting member 4 is rotatably connected to the inner side surface of the air guide plate 2, so that the connecting member 4 is arranged on the inner side of the air guide plate 2. Since the transmission rod 3 is connected to the upper end of the connecting member 4 and the air guide plate 2 is connected to the lower end of the connecting member 4, the rotation of the air guide plate 2 on the lower side of the connecting member 4 will not be affected by the structure of the connecting member 4, and the air guide plate 2 can have a larger flip angle, form a larger wind-supporting area, a longer air supply distance, and a larger wind sweeping range, which can effectively prevent cold wind from blowing on people and improve the comfort of air supply.
[0032] In one embodiment, the air guide mechanism also includes a first driving structure, the transmission rod 3 is drivingly connected to the driving end of the first driving structure, and is driven to rotate by the first driving structure, and the transmission assembly also includes a second driving structure, the second driving structure is connected between the transmission rod 3 and the air guide plate 2, and is drivingly connected to the air guide plate 2, driving the air guide plate 2 to rotate relative to the transmission rod 3.
[0033] In this embodiment, the air guide mechanism adopts a dual rotation drive structure to control the air guide plate. The transmission component of the air guide mechanism is rotated outward as a whole through the first drive structure, and the air guide angle of the air guide plate 2 is adjusted through the second drive structure. When the air conditioner is cooling, the first drive structure and the second drive structure are controlled to act so that the air guide plate 2 divides the air outlet 1 of the air conditioner into two parts, upper and lower. The cold air can pass through the inner and outer surfaces of the air guide plate 2, so that the cold air can wrap around the air guide plate 2 during cooling, thereby avoiding excessive temperature difference between the inside and outside of the air guide plate 2, thereby avoiding the formation of condensation.
[0034] In addition, the structure is combined with the structure in which the transmission rod 3 is connected to the upper end of the connecting member 4, and the air guide plate 2 is connected to the lower end of the connecting member 4, so that the air guide plate 2 rotates upward under the driving action of the first driving structure during operation, and when it rotates to a preset position, the second driving structure can be further used to independently control the rotation angle of the air guide plate 2 relative to the transmission component, thereby achieving free control of the angle of the air guide plate 2, further increasing the flipping angle of the air guide plate 2, and allowing the angle of the air guide plate 2 to be adjusted to the optimal position, further forming a larger wind supporting area, further increasing the air supply distance, and increasing the wind sweeping range.
[0035] In addition, a dual-rotation drive structure is adopted so that the overall rotation of the air guide mechanism and the rotation of the air guide plate 2 are controlled separately, which can make the control of the air guide plate 2 more convenient and the control accuracy higher. In coordination with the rotation of the air guide mechanism, a variety of adjustments of the air guide angle of the air guide plate 2 can be achieved, and when the air guide plate 2 closes the air outlet 1, the sealing effect of the closed air outlet 1 can also be more effectively ensured.
[0036] Compared with the existing ejection mechanism, the above-mentioned dual-rotation drive structure has a simpler structure and a smaller size, and can effectively avoid the problem of occupying a large overall space of the air conditioner due to its excessive size.
[0037] In one embodiment, the first end of the transmission rod 3 is provided with an axial hole, and the output end of the first driving structure is connected to the axial hole, and forms a circumferential synchronous rotation. In this embodiment, the axial hole at the first end of the transmission rod 3 is, for example, a polygonal hole, or an elliptical hole, and an anti-rotation structure such as a single-side cut edge or a multi-side cut edge can also be provided. The shape of the first driving structure is adapted to the shape of the axial hole, so as to effectively transmit the rotational driving force of the first driving structure while ensuring the connection between the two. In other embodiments, the axial hole can also be a circular hole. In this case, the output end of the first driving structure can be interference fit with the circular hole, or can be fixed by gluing, or fixed by screws, so as to achieve the transmission of the rotational torque.
[0038] The above-mentioned shaft hole may also be a cross hole, or other structures that can conveniently realize the rotational drive between the first driving structure and the transmission rod 3 .
[0039] In one embodiment, the first driving structure includes a first motor 5, a driving box 6, a box cover 7, a driving gear 8 and a gear shaft 9. The driving gear 8 and the gear shaft 9 are meshed for transmission and are installed in the driving box 6. The box cover 7 is covered on the driving box 6. The output shaft of the first motor 5 is drivingly connected to the driving gear 8. The gear shaft 9 extends out of the driving box 6 from one end of the driving box 6 away from the first motor 5 and is connected to the shaft hole of the transmission rod 3.
[0040] In this embodiment, the transmission structure formed by the driving gear 8 and the gear shaft 9 is arranged in the driving box 6, and the driving box 6 can be used to protect the driving gear 8 and the gear shaft 9, improve the transmission accuracy of the driving gear 8 and the gear shaft 9, extend the service life of the driving gear 8 and the gear shaft 9, and facilitate the installation of the driving gear 8 and the gear shaft 9. The driving box 6 can be installed on the bottom shell 19 of the air conditioner, and the first motor 5 is installed on the bottom shell 19, or it can also be directly installed on the driving box 6.
[0041] In one embodiment, the second driving structure includes a second motor 10, which is mounted on one of the connecting members 4, and is connected to the air guide plate 2 by driving via an output shaft. In this embodiment, the second motor 10 is arranged on one of the connecting members 4, so that the second motor 10 can rotate together with the connecting member 4, ensuring the synchronous rotation of the second motor 10 during the driving process of the transmission assembly of the air guide mechanism, and the output end of the second motor 10 is directly connected to the air guide plate 2 by driving. When the air guide plate 2 needs to be adjusted separately, the air guide angle of the air guide plate 2 can be directly adjusted by the second motor 10, so that the air guide plate 2 can be rotated to the desired angle, thereby improving the air outlet efficiency and effectively avoiding the occurrence of condensation during the refrigeration process.
[0042] In one embodiment, a connecting ear plate 11 is provided on the inner surface of the air deflector 2, and a driving hole is provided on the connecting ear plate 11 that cooperates with the second motor 10. The output shaft of the second motor 10 extends into the driving hole to form a rotational driving connection with the connecting ear plate 11. In this embodiment, by providing the connecting ear plate 11 on the inner side of the air deflector 2, the driving connection between the air deflector 2 and the second motor 10 can be conveniently achieved. In this embodiment, only the driving hole of the connecting ear plate 11 that is drivingly connected to the second motor 10 forms a rotational driving connection with the second motor 10, and the driving holes on the other connecting ear plates 11 all form a rotational cooperation with the connecting member 4.
[0043] In one embodiment, the air guide mechanism further includes a pressing plate 12, and the pressing plate 12 fixes the second motor 10 on the connecting member 4, which can facilitate the installation and fixation of the second motor 10 on the connecting member 4, reduce the difficulty of installation, and ensure the structural stability of the second motor 10. A clamping relationship can be formed between the pressing plate 12 in this embodiment and the connecting member 4 where the second motor 10 is arranged, and the second motor 10 is confined in the installation space formed by the pressing plate 12 and the connecting member 4, which reduces the difficulty of installation and improves the installation efficiency.
[0044] In one embodiment, the connecting member 4 includes claws 13, and multiple claws 13 are arranged at intervals along the axial direction of the transmission rod 3, at least one claw 13 is connected to the first end of the air guide plate 2, at least one claw 13 is connected to the second end of the air guide plate 2, and at least one claw 13 is connected to the middle position of the air guide plate 2.
[0045] In this embodiment, at least at both ends and the middle position of the air guide plate 2, a connection is achieved between the claws 13 and the transmission rod 3, so that a multi-claw structure can be formed, so that the air guide plate 2 can be corrected to avoid the problem of the air guide plate 2 not closing tightly due to outward arch or inward concave.
[0046] The claw 13 includes a connecting arm 14 and a pin 15 arranged at the end of the connecting arm 14 away from the transmission rod 3, the pin 15 includes a guide head 16 and an annular groove 17 arranged on the rear side of the guide head 16, the inner surface of the air guide plate 2 is provided with a connecting ear plate 11, and the connecting ear plate 11 is provided with an axial hole. A rotating shaft is provided at the end of the connecting arm 14, and the rotating shaft is arranged in the upper axial hole. The pin 15 is arranged at the end of the rotating shaft and axially limits the connecting ear plate 11.
[0047] In this embodiment, the end structure of the connecting arm 14 that forms a rotational fit with the connecting ear plate 11 is different. The end of the connecting arm 14 where the second motor 10 is set needs to form a structure for installing the second motor 10. The output end of the second motor 10 is used to realize the driving connection with the connecting ear plate 11, thereby ensuring that the connecting ear plate 11 can transmit torque and realize the adjustment of the wind guide angle of the wind guide plate 2.
[0048] The guide head 16 is, for example, a mushroom head, which can facilitate guiding during the assembly process, reduce assembly difficulty, and improve assembly efficiency.
[0049] In one embodiment, the latch pin 15 includes a deformation groove 18 axially extending from a first end portion of the latch pin 15 toward a second end thereof, and the guide head 16 and the annular groove 17 are both disposed within an axial range corresponding to the deformation groove 18 .
[0050] In this embodiment, the deformation groove 18 is, for example, a U-shaped groove or a cross-shaped groove, so that the head of the pin 15 can be deformed, which facilitates the installation and cooperation between the pin 15 and the rotating shaft of the connecting arm 14. The head of the pin 15 is provided with a stop flange, which can axially limit the connecting ear plate 11 after the pin 15 is installed on the end of the rotating shaft of the connecting arm 14, so that the connecting ear plate 11 can be maintained on the outside of the rotating shaft of the connecting arm 14, forming a rotational fit with the rotating shaft.
[0051] The annular groove 17 can reduce the structural strength of the latch 15 , thereby further improving the elastic deformation capability of the latch 15 , making it easier to install and remove the air guide plate 2 .
[0052] According to an embodiment of the present application, the air conditioner includes an air guide structure, and the air guide mechanism is the above-mentioned air guide mechanism.
[0053] The air conditioner further comprises a bottom shell 19 and a panel. The panel is mounted on the bottom shell 19 , an air outlet 1 is provided on the panel, and an air outlet mechanism is mounted on a portion of the bottom shell 19 located above the air outlet 1 .
[0054] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.
[0055] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.
Claims
1. An air guide mechanism, arranged at an air outlet (1) of an air conditioner, characterized in that: It comprises a transmission component and an air guide plate (2), wherein the installation end of the transmission component is located on the upper side of the air outlet (1), and the air guide plate (2) is arranged at the transmission end of the transmission component. When the air conditioner is in a cooling state, the transmission component sends the air guide plate (2) out of the air outlet (1), and the air guide plate (2) divides the air outlet of the air outlet (1) into two parts, an upper part and an lower part, and the upper and lower parts of the air outlet wrap the air guide plate (2); The transmission assembly comprises a transmission rod (3), the transmission rod (3) being provided with a connecting piece (4), the connecting piece (4) being rotatably connected to the inner side surface of the air guide plate (2); The air guide mechanism further comprises a first driving structure, the transmission rod (3) being drivingly connected to a driving end of the first driving structure and driven to rotate by the first driving structure, and the rotation of the transmission rod (3) can drive the connecting member (4) to rotate around a rotation center of the transmission rod (3).
2. The air guide mechanism according to claim 1, characterized in that: The transmission assembly further comprises a second driving structure, the second driving structure being connected between the transmission rod (3) and the wind deflector (2) and being drivingly connected to the wind deflector (2) to drive the wind deflector (2) to rotate relative to the transmission rod (3).
3. The air guide mechanism according to claim 1, characterized in that: The first end of the transmission rod (3) is provided with an axial hole, and the output end of the first driving structure is connected to the axial hole to form circumferential synchronous rotation.
4. The air guide mechanism according to claim 2, characterized in that: The first driving structure comprises a first motor (5), a driving box (6), a box cover (7), a driving gear (8) and a gear shaft (9); the driving gear (8) and the gear shaft (9) are meshed and driven, and are installed in the driving box (6); the box cover (7) is arranged on the driving box (6); the output shaft of the first motor (5) is drivingly connected to the driving gear (8); the gear shaft (9) extends out of the driving box (6) from one end of the driving box (6) away from the first motor (5) and is connected to the shaft hole of the transmission rod (3).
5. The air guide mechanism according to claim 2, characterized in that: The second driving structure comprises a second motor (10), the second motor (10) being mounted on one of the connecting members (4), and the second motor (10) being drivingly connected to the air guide plate (2) via an output shaft.
6. The air guide mechanism according to claim 5, characterized in that: The inner surface of the air guide plate (2) is provided with a connecting ear plate (11), and the connecting ear plate (11) matched with the second motor (10) is provided with a driving hole, and the output shaft of the second motor (10) extends into the driving hole to form a rotational driving connection with the connecting ear plate (11).
7. The air guide mechanism according to claim 5, characterized in that: The air guide mechanism further comprises a pressing plate (12), wherein the pressing plate (12) mounts and fixes the second motor (10) on the connecting member (4).
8. The air guide mechanism according to claim 1, characterized in that: The connecting member (4) comprises claws (13), a plurality of the claws (13) are arranged at intervals along the axial direction of the transmission rod (3), at least one of the claws (13) is connected to the first end of the wind deflector (2), at least one of the claws (13) is connected to the second end of the wind deflector (2), and at least one of the claws (13) is connected to the middle position of the wind deflector (2).
9. The air guide mechanism according to claim 8, characterized in that: The claw (13) comprises a connecting arm (14) and a latch (15) arranged at the end of the connecting arm (14) away from the transmission rod (3); the latch (15) comprises a guide head (16) and an annular groove (17) arranged at the rear side of the guide head (16); a connecting ear plate (11) is arranged on the inner surface of the air guide plate (2); an axial hole is arranged on the connecting ear plate (11); a rotating shaft is arranged at the end of the connecting arm (14); the rotating shaft is arranged in the upper axial hole; the latch (15) is arranged at the end of the rotating shaft and axially limits the connecting ear plate (11).
10. The air guide mechanism according to claim 9, characterized in that: The latch pin (15) comprises a deformation groove (18), wherein the deformation groove (18) extends axially from a first end portion of the latch pin (15) toward a second end, and the guide head (16) and the annular groove (17) are both arranged within an axial range corresponding to the deformation groove (18).
11. An air conditioner, comprising an air guide structure, characterized in that: The air guide mechanism is the air guide mechanism according to any one of claims 1 to 10.
