WO2019119373A1 - Deformable vehicle and deformable ceiling - Google Patents

Abstract

A deformable vehicle (10, 20, 30, 40), comprising a vehicle body (11, 21, 31, 41) and a deformable ceiling (12, 22, 32, 42) disposed thereon. The deformable ceiling (12, 22, 32, 42) comprises a lifting component (121, 222) and a guide component (122, 223) matching the lifting component (121, 222) to lift. One end of the lifting component (121, 222) is in a connection fit with the guide component (122, 223), and the other end of the lifting component (121, 222) is rotatably connected to lift the lifting component (121, 222). The deformable vehicle (10, 20, 30, 40) can take both high-speed and low-speed driving performances of a vehicle into consideration, and adjust the vehicle body structure according to different high-speed and low-speed driving environment so as to adapt the vehicle model to the driving environment, thereby improving the performance of the vehicle. The vehicle has good comfort and high security and stability, and the energy consumption is reduced.

Description

Deformable vehicle and deformable roof

[Technical Field]

The present invention relates to the field of vehicle manufacturing technology, and in particular to a deformable vehicle and a deformable roof.

 【Background technique】

The car has been interacting with the air while driving, and the air force has a huge change at high speeds and low speeds. Traditional car production usually has different appearances for different types of vehicles. For high and low speed performance choices, different exterior designs often fail to balance high speed and low speed performance.

For example, in order to ensure the stability of the vehicle at high speeds, many models use a slightly upturned trunk end to increase the pressure on the upper surface of the car. Such models increase unnecessary upper surface pressure and increase fuel consumption at low speeds. . For example, in order to reduce air resistance at high speeds, the body of some models (such as sports cars) usually adopts a streamlined design, and the height of the body part is small; this model sacrifices the space for personnel movement in the vehicle body, and at low speed It will increase unnecessary upper surface pressure and consume fuel. For low-speed cars, because they do not often travel at high speeds, these types of vehicles usually have a high body and a large windward area. If driving at high speeds, the energy consumption is large.

 [Summary of the Invention]

The invention provides a deformable vehicle and a deformable roof capable of balancing the performances of low speed and high speed driving, improving the comfort and safety stability of the vehicle, and saving energy consumption.

In order to solve the above technical problem, a technical solution adopted by the present invention is to provide a deformable vehicle comprising: a vehicle body and a deformable ceiling mounted on the vehicle body;

The deformable ceiling includes a liftable member and a guide member that cooperates with the liftable member; the liftable member has one end coupled to the guide member, and the other end of the liftable member is rotatably coupled to Lifting parts can be raised and lowered.

In order to solve the above technical problem, a technical solution adopted by the present invention is to provide a deformable ceiling, comprising: a lifting member and a guiding member for lifting and lowering the lifting member; the one end of the lifting member and the guiding The component is matingly coupled, and the other end of the liftable component is rotatably coupled to lift the liftable component.

The invention has the beneficial effects that the present invention provides a deformable vehicle capable of balancing the performance of the vehicle at high speed and low speed, and adjusting the vehicle body structure according to different high and low speed driving environments to adapt the vehicle model to driving. Environment, improved vehicle performance, high vehicle comfort and safety and stability, and energy saving.

 [Description of the Drawings]

1 is a schematic structural view of an embodiment of a deformable vehicle according to the present invention;

2a and 2b are schematic views showing the structure of the deformable ceiling in the highest and lowest positions of another embodiment of the deformable vehicle of the present invention;

3 is a schematic structural view of another embodiment of a deformable vehicle of the present invention;

4 is a schematic structural view of another embodiment of a deformable vehicle of the present invention;

4a and 4b are respectively a partial plan view of the stowed state of the rear spoiler assembly of the deformable vehicle of Fig. 4 and a partial front view of the deployed state of the rear spoiler assembly;

5a and 5b are a partial plan view and a partial elevational view, respectively, of the stowed state of another embodiment of the rear spoiler assembly of the deformable vehicle of the present invention.

【Detailed ways】

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It should also be noted that, for ease of description, only some, but not all, of the structures related to the present invention are shown in the drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terms "first", "second", and the like in the present invention are used to distinguish different objects, and are not intended to describe a specific order. Furthermore, the terms "comprises" and "comprising" and "comprising" are intended to cover a non-exclusive inclusion.

References to "an embodiment" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the invention. The appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.

Please refer to FIG. 1. FIG. 1 is a schematic structural view of an embodiment of a deformable vehicle according to the present invention. As shown in FIG. 1, the deformable vehicle 10 of the present embodiment includes a vehicle body 11 and a deformable ceiling 12 mounted on the vehicle body. The deformable ceiling 12 includes a liftable member 121 and a guide member 122 for lifting and lowering the liftable member. One end of the liftable member 121 is coupled to the guide member 122, and the other end of the liftable member 121 is rotatably coupled to the body 11 so that Lifting parts can be raised and lowered. Specifically, the liftable member 121 can be rotatably coupled to the top of the body 11 or rotatably coupled to the front windshield of the vehicle. In order to ensure that the inside of the vehicle has sufficient space for movement, the angle of rotation of the lifting member 121 should not be too large, generally not exceeding 30°.

Through the arrangement of the deformable ceiling 12 as above, the vehicle body structure of the vehicle can be adjusted according to different high and low speed running environments, so that the vehicle model is suitable for the driving environment. For example, when the vehicle is traveling at a low speed, since the air resistance received by the vehicle is small and the lifting force is also small, the deformable ceiling 12 can be controlled to be at the highest position by controlling the liftable member 121, thereby increasing the space for the personnel in the vehicle body and driving comfortably. High performance and low fuel consumption. When the vehicle is traveling at a high speed, since the air resistance is large at a high speed and the lifting force is large, the deformable ceiling 12 can be adjusted by adjusting the liftable member 121 so that the liftable member 121 is close to the front end and connected to the vehicle body. Rotating downward, the opposite end slides down along the guiding member 122 to the lowest position, thereby changing the shape of the tail of the vehicle and the air flow direction, reducing the air resistance and improving its safety and stability; in addition, when the deformable ceiling 12 is lowered, Since the top portion is lowered and the left and right sides of the vehicle are kept in the original shape and the height is constant, two tail fins are formed at the rear of the vehicle body 11 to maintain the stability of the vehicle body at a high speed.

In a specific embodiment, the liftable component 121 includes a first movable component 1211 and a second movable component 1212. One end of the first movable part 1211 is rotatably connected to the vehicle body 11, the other end is movably connected to one end of the second movable part 1212, and the other end of the second movable part 1212 is cooperatively coupled with the guiding part 122 to rotate when the first movable part 1211 is rotated. The second movable part 1212 slides along the guide part 122.

In order to make the structure of the deformable vehicle 10 more smooth and beautiful, in another embodiment, the first movable part 1211 and the second movable part 1212 can be set to be bendable or to some extent along the front end of the vehicle. A retractable connection that is oriented in a direction. For example, if the first movable part 1211 and the second movable part 1212 are connected in a telescopic manner, if the vehicle is moving at a high speed, the first movable part 1211 is rotated downward in a rotational direction with the connection end of the vehicle body 11, and the second movable part 1212 is along The guiding member 122 slides downward, and in the process, the first movable member 1211 and the second movable member 1212 are relatively stretched until the liftable member 121 is lowered to the limit position; if the vehicle is converted to low speed running, the first movable member 1211 The second movable member 1212 slides upward along the guide member 122 in the axial direction of the rotation of the connecting end with the body 11, and during the ascent, the first movable member 1211 and the second movable member 1212 are relatively contracted until they rise to the extreme position.

In order to facilitate deformation control of the deformable ceiling 12, in another embodiment, the deformable vehicle 10 can include a control device coupled to the deformable ceiling 12 for controlling the liftable member 121 in the deformable ceiling 12. The lifting is performed to achieve deformation of the deformable ceiling 12. Specifically, the control device may be electrically connected to the deformable ceiling 12, or may be mechanically connected by a gear, a rack, or the like, which is not limited thereto. Optionally, the deformable vehicle 10 further includes a speed measuring device, and the speed measuring device is electrically connected to the control device, and the control device can automatically adjust and control the lifting and lowering of the liftable component 121 in the deformable ceiling 12 according to the vehicle speed change. Specifically, the preset threshold of the vehicle high and low speed determination may be set according to the specific conditions of the vehicle type structure, that is, the preset threshold is used as the basis for determining, and when the vehicle speed is lower than the preset threshold, it belongs to the low speed; when the vehicle speed is higher than the preset threshold At the time, it belongs to high speed. The speed measuring device detects the vehicle speed. When the vehicle speed does not exceed the preset threshold, the vehicle is in a low speed driving state, and the deformable roof 12 on the vehicle is controlled by the control device to be in the highest position; when the vehicle speed exceeds the preset threshold, the vehicle is in the high speed driving state, The deformable ceiling 12 is adjusted by the control device, and the liftable member 121 therein is lowered to the lowest position, thereby reducing the height of the portion of the body, changing the air flow direction, and reducing the air resistance.

The deformable vehicle 10 of the present embodiment can balance the performance of the vehicle at high speed and low speed, and can adjust the vehicle body structure through the deformable ceiling 12 according to different high and low speed driving environments, so that the vehicle model is suitable for the driving environment, thereby improving vehicle performance and making the vehicle Comfort and safety and stability, and energy savings.

In addition, the deformable ceiling can take other forms. For example, please refer to FIG. 2a and FIG. 2b. FIG. 2a and FIG. 2b are structural diagrams showing the deformable ceiling of the deformable vehicle of the present invention in the highest and lowest positions, respectively. As shown in FIGS. 2a and 2b, the deformable vehicle 20 of the present embodiment includes a vehicle body 21 and a deformable ceiling 22 mounted on the vehicle body, wherein the deformable ceiling 22 includes a fixing member 221, a liftable member 222, and a fitting liftable member. 222 lifting guide member 223. One end of the fixing member 221 is fixed to the top of the vehicle body 21. One end of the lifting member 222 is rotatably connected to the other end of the fixing member 221, and the other end of the lifting member 222 is coupled with the guiding member 223 to lift and lower the lifting member 222. . In order to ensure that the inside of the vehicle has sufficient space structure, the angle of rotation of the lifting member 222 should not be too large, generally not exceeding 30 degrees.

Through the arrangement of the deformable ceiling 22 as described above, the vehicle body structure of the vehicle can be adjusted according to different high and low speed running environments, so that the vehicle model is suitable for the driving environment. For example, when the vehicle is traveling at a low speed, the deformable ceiling 22 can be controlled to be at the highest position by controlling the liftable member 222 (as shown in FIG. 2a), thereby increasing the space for personnel movement in the vehicle body, high driving comfort, and low fuel consumption. When the vehicle is driving at a high speed, the adjustable lifting member 222 adjusts the deformable ceiling 22 so that the liftable member 222 rotates with the connecting end of the fixing member 221 as an axis, and the opposite end slides along the guiding member 223 to the lowest limit. (as shown in Fig. 2b), thereby changing the shape of the tail of the vehicle and the air flow direction, reducing the air resistance and improving its safety and stability; in addition, as shown in Fig. 2b, when the deformable ceiling 22 is lowered, the top is lowered, The left and right sides of the vehicle maintain their original shape and the height is constant. Therefore, two tail fins are formed at the rear of the vehicle body to maintain the stability of the vehicle body at high speed.

The deformable vehicle 20 of the present embodiment is similar in structure to the deformable vehicle 10 shown in FIG. 1, and the working principle is basically the same, and the above effects of the deformable vehicle 10 shown in FIG. 1 can also be achieved. The difference between the two is that the liftable member 121 of the deformable roof 12 of the deformable vehicle 10 shown in FIG. 1 is directly rotatably connected to the vehicle body 11; and the deformable vehicle 20 of the present embodiment can deform the ceiling member 22 with the liftable member 222. The fixed part 221 is connected to the vehicle body 21, wherein the fixed part 221 is fixedly connected to the vehicle body 21, and is rotatably connected to the liftable part 222. By the arrangement of the fixed part 221, the driver's activity space can be guaranteed to a certain extent even if the vehicle Deformation, the height of the rear part of the body 21 is lowered, and the height of the front part is basically unchanged, which ensures the driver's manipulation of the driving space.

It can be understood that the rearward of the liftable member 222 on the deformable ceiling 22, the deformable carport 22 is adjusted when the vehicle is traveling at a high speed, and the liftable member 222 is lowered. The lower the lowering position of the vehicle body, the lower the weight can be reduced to some extent. The air resistance is small, but the effect is not obvious. Therefore, in order to effectively reduce the air resistance and improve the performance of the vehicle, in one embodiment, the length of the fixing member 221 in the horizontal direction does not exceed the length of the liftable member 222 in the horizontal direction.

In the embodiment, the deformable vehicle 20 can be configured by the above-described deformable ceiling 22, so that the performance of the vehicle at high speed and low speed can be taken into consideration, and the vehicle body structure can be adjusted by adjusting the deformable ceiling 22 according to different high and low speed driving environments, so as to make the vehicle model more Suitable for the driving environment, thus improving the performance of the vehicle, making the vehicle more comfortable and safer, and saving energy.

The deformable vehicle of the above embodiment mainly adopts an improved design of the ceiling so that the vehicle can adjust the vehicle type according to different high and low speed running environments to make it more suitable for the driving environment and improve the performance of the vehicle. In addition to this, improvements can be made in other structures to further improve vehicle performance. For example, please refer to FIG. 3. FIG. 3 is a schematic structural view of another embodiment of a deformable vehicle according to the present invention. As shown in FIG. 3, the deformable vehicle 30 of the present embodiment includes a vehicle body 31, a deformable ceiling 32, and a windshield 33.

The structural arrangement of the body 31 and the deformable ceiling 32 is the same as that of the deformable vehicle shown in FIG. 2 or FIG. 1 , and the adjustment manner and corresponding functions of the deformable ceiling are also the same, and details are not described herein.

The wind deflector 33 is connectable to the bottom of the body 31. For example, for a vehicle provided with a front bumper, a windshield 33 may be provided in a flyable connection with the front bumper for use in lowering the front position of the body 31 and blocking the entry of air below the body 31 when in use.

Specifically, the wind deflector 33 and the bottom of the vehicle body 31 can adopt a foldable connection. When the vehicle runs at a low speed, the wind deflector 33 is not used, and the wind deflector 33 is not folded up and is in a horizontal position (as shown in the A state in FIG. 3). When the vehicle is traveling at a high speed, the control wind deflector 33 is folded and unfolded toward the ground direction as the rotation axis is connected with the vehicle body 31 (as in the B state in FIG. 3), the front position of the vehicle body 31 is lowered, and the vehicle is traveling. In the process, the entry of air below the body 31 can be blocked.

In this embodiment, the height of the body 31 can be adjusted by the design of the windshield 33, and the wind deflector 33 can be adjusted according to different high and low speed driving environments, so that the vehicle model and the driving environment are suitable and improved. In addition, the windshield 33 is stowed when parking or traveling on a bumpy roadside, thereby functioning to protect the floor of the vehicle body 31.

In another embodiment, the wind deflector 33 and the bottom of the body 31 may also be in other expandable connections, such as a retractable connection. When the windshield 33 is in the unused state, it is stowed; and when in use, it is extended downward, thereby reducing the front position of the body 31 and blocking the entry of air below the body 31.

Of course, in another embodiment, a control device coupled to the deformable ceiling 32 and the wind deflector 33 may be provided accordingly to control the lifting of the deformable ceiling 32 and the deployment of the wind deflector 33 by the control device. Specifically, the control device may be electrically connected to the deformable ceiling 32 and the windshield 33, or may be mechanically coupled by gears, racks, or the like. In addition, in another embodiment, a speed measuring device electrically connected to the control device may be provided similarly to the above embodiment, and the control device may control the liftable component in the deformable ceiling 32 according to the measured vehicle speed of the speed measuring device. The lifting and the windshield 33 are extended to make the vehicle more suitable for the driving environment and improve the performance of the vehicle in the corresponding driving environment.

The deformable vehicle 30 of the present embodiment is configured by the structure of the deformable ceiling 32 and the wind deflector 33, and can simultaneously take into consideration the low speed and high speed performance of the vehicle, and can adjust the body structure through the above two parts according to different high and low speed running environments, so that The model is more suitable for the driving environment, thus improving the performance of the vehicle.

In addition to this, further improvements can be made in other structures. For example, based on the above structural improvements, the present invention also proposes a deformable vehicle that further improves vehicle performance by adding a rear spoiler assembly at the rear of the vehicle body. 4, 4a, 4b, FIG. 4 is a schematic structural view of another embodiment of the deformable vehicle of the present invention, and FIGS. 4a and 4b are respectively a partial side view and a rear view of the stowed state of the deformable vehicle rear spoiler assembly of FIG. A partial front view of the spoiler component's expanded state. As shown in Figures 4, 4a, 4b, the deformable vehicle 40 of the present embodiment includes a body 41, a deformable ceiling 42, a wind deflector 43, and a rear spoiler assembly 44.

The body, the deformable ceiling 42 and the wind deflector 43 have the same structure as the corresponding components in the deformable vehicle 30 shown in FIG. 3, and the adjustment manners and corresponding functions of the deformable ceiling and the windshield are also the same, and details are not described herein again.

The rear spoiler assembly 44 is rotatably coupled to the rear of the body 41 for reducing the upward force experienced by the vehicle during travel. In this embodiment, the rear spoiler assembly 44 is a rectangular rear spoiler, and the rear spoiler assembly 44 is rotatably connected to the trunk lid 45 at the rear of the body 41, so that it can be adjusted according to different high and low speed driving environments. Spoiler assembly 44. Specifically, when the vehicle is traveling at a low speed, the air resistance and the lifting force of the vehicle are both small, the rear spoiler assembly 44 is stowed, not deployed (as shown in the M state in FIG. 4 and FIG. 4a); and when the vehicle is at a high speed When driving, the air resistance and the lifting force are large. At this time, the rear spoiler 44 is opened, and the rear spoiler assembly 44 is gradually raised to a certain angle (as shown in the N state in FIG. 4 and FIG. 4b), thereby enabling the vehicle body. The rear part of the 41 is raised to reduce the air resistance, and at the same time, the downward force of the tail of the air 41 of the body 41 is increased to reduce the lifting force.

Of course, the rear spoiler assembly 44 is disposed to be rotatably coupled to other components of the rear portion of the body 41. The present invention is not limited to the specific connecting components of the rear spoiler assembly 44, and the corresponding functions may be implemented.

In the present embodiment, the trunk cover 45 at the rear of the body 41 is further provided with a recess 451 that coincides with the rear spoiler assembly 44 for retracting the rear spoiler assembly 44. The rear spoiler assembly 44 is deployed in use, and is retracted in the recess 451 when not in use. In the stowed state, the rear spoiler assembly 44 forms part of the trunk lid 45, and the two are integrated so that they are driven at a high speed. At the same time, it can fully exert its function, and at the same time, it does not become a burden on the vehicle when the vehicle is traveling at a low speed, and does not affect the overall appearance of the vehicle.

Of course, in other embodiments, the rear spoiler assembly 44 may be directly added to the rear portion of the body 41 without the receiving groove 451 of the rear spoiler assembly 44, so as to facilitate processing and time saving.

In another embodiment, a control device coupled to the deformable ceiling 42, windshield 43 and rear spoiler assembly 44 may also be provided, by which the lifting and lowering of the ceiling 42 is controlled, the wind deflector 43 and the rear spoiler are controlled. The assembly 44 can be assembled; even by similar to the above embodiment, a speed measuring device electrically connected to the control device can be provided, and the control device can control the lifting and lowering of the liftable component in the deformable ceiling 42 according to the measured vehicle speed of the speed measuring device. The windshield 43 and the rear spoiler assembly 44 are extended to make the vehicle model suitable for the driving environment and improve the performance of the vehicle in the corresponding driving environment.

In another embodiment, the rear spoiler assembly 44 can also employ other configurations. For example, referring to Figures 5a and 5b, respectively, Figures 5a and 5b are partial elevational and partial elevation views, respectively, of a stowed state of another embodiment of a rear spoiler assembly in a deformable vehicle of the present invention. As shown in Figures 5a and 5b, the rear spoiler assembly 54 includes a movable bracket 54a and a rear spoiler 54b. One end of the movable bracket 54a is rotatably coupled to the trunk lid 55 of the rear of the vehicle body, and the opposite end and rear spoiler The 54b is rotatably coupled and the trunk lid 55 is provided with a recess 551 that conforms to the rear spoiler assembly 54 for retracting the rear spoiler assembly 54. The rear spoiler 54b is rotatably coupled to the trunk lid 55 by the movable bracket 54a, so that the rotation of the rear spoiler 54b can be made more flexible.

The deformable vehicle of the embodiment is configured by the structure of the deformable ceiling, the windshield and the rear spoiler assembly, and can take into consideration the low speed and high speed performance of the vehicle, and can adjust the body structure through the above three parts according to different high and low speed driving environments. In order to make the model more suitable for the driving environment, the performance of the vehicle is improved, the comfort, safety and stability of the vehicle are higher, and energy consumption is saved.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims (14)

1. A deformable vehicle, characterized in that: the deformable vehicle comprises: a vehicle body and a deformable roof mounted on the vehicle body;

   The deformable ceiling includes a liftable member and a guide member that cooperates with the liftable member; the liftable member has one end coupled to the guide member, and the other end of the liftable member is rotatably coupled to Lifting parts can be raised and lowered.
2. The deformable vehicle of claim 1 wherein the other end of the liftable member is rotatably coupled to the body top.
3. The deformable vehicle according to claim 1, wherein the deformable ceiling further comprises a fixing member, one end of the fixing member is fixed to the top of the vehicle body, and the other end of the liftable member is rotatably connected At the other end of the fixing member.
4. The deformable vehicle of claim 1 wherein said liftable member comprises a first movable member and a second movable member.
5. The deformable vehicle according to claim 4, wherein one end of the first movable member is rotatably coupled to the vehicle body, and the other end of the first movable member is movable with one end of the second movable member Connecting, the other end of the second movable member is mated with the guiding member to slide along the guiding member when the first movable member rotates.
6. The deformable vehicle of claim 1 wherein said deformable vehicle further comprises a wind deflector, said wind deflector being retractably coupled to said underbody.
7. The deformable vehicle of claim 1 wherein said deformable vehicle further comprises a rear spoiler assembly rotatably coupled to said body tail.
8. The deformable vehicle of claim 6 wherein said deformable vehicle further comprises a rear spoiler assembly rotatably coupled to said body tail.
9. The deformable vehicle according to claim 1, wherein said deformable vehicle further comprises a speed measuring device and a control device, said control device being respectively coupled to said speed measuring device and said deformable ceiling for use in accordance with a vehicle speed The change controls the lifting of the liftable component in the deformable ceiling.
10. The deformable vehicle according to claim 6, wherein the deformable vehicle further comprises a speed measuring device and a control device, the control device and the speed measuring device, the deformable ceiling, and the wind deflector, respectively And a connection for controlling the lifting of the liftable component in the deformable ceiling and the folding of the windshield according to a change in the speed of the vehicle.
11. The deformable vehicle according to claim 7, wherein said deformable vehicle further comprises a speed measuring device and a control device, said control device and said speed measuring device, said deformable roof, and said spoiler assembly And a connection for controlling the lifting of the liftable component in the deformable ceiling and the gathering of the spoiler assembly according to a change in the speed of the vehicle.
12. The deformable vehicle according to claim 8, wherein the deformable vehicle further comprises a speed measuring device and a control device, the control device and the speed measuring device, the deformable ceiling, and the wind deflector, respectively And the spoiler assembly connection for controlling the lifting of the liftable component in the deformable ceiling and the buckling of the windshield and the spoiler assembly according to a change in vehicle speed.
13. A deformable canopy, characterized in that the deformable ceiling comprises a lifting member and a guiding member that cooperates with the lifting and lowering member; and one end of the lifting member is coupled with the guiding member, and the lifting member The other end is rotatably coupled to elevate and lower the liftable member.
14. The deformable ceiling according to claim 13, wherein said liftable member comprises a first movable member and a second movable member, one end of said first movable member being rotatably coupled, said first movable member The other end is movably coupled to one end of the second member, and the other end of the second movable member is mated with the guide member to follow the guide when the first movable member is rotated The part slides.