An unlocking mechanism applicable to seat adjustment and its usage method

Abstract

The present invention provides an unlocking mechanism suitable for seat adjustment and a method of using the same, which can switch between electric control and manual control adjustment functions by using an unlocking handle and an adjustment handle, wherein a first handle assembly hole, a first unlocking handle assembly hole, and a first tension spring assembly hole are provided on the handle bracket of the unlocking mechanism; a rectangular through groove is provided at the middle position of one end of the handle bracket; a cable assembly is assembled in the rectangular through groove, and the second handle assembly hole of the cable assembly matches the position of the first handle assembly hole; a third handle assembly hole matching the first handle assembly hole is provided on the lock tooth, the lock tooth is provided on one side of the handle bracket, and a first tooth is provided on one side of the lock tooth; the adjustment handle passes through the lock tooth, the handle bracket and the cable assembly in sequence; the unlocking handle is provided with a second unlocking handle assembly hole matching the first unlocking handle assembly hole, a second tension spring assembly hole is provided below the second unlocking handle assembly hole, and a second tooth matching the first tooth is provided on the unlocking handle.

Description

Technical Field

[0001] The present invention relates to the field of seat unlocking, and in particular to an unlocking mechanism suitable for seat adjustment and a use method thereof. Background Art

[0002] At present, the unlocking mechanism of the driver's cab seat has a relatively simple unlocking mode because the seat back is adjusted by a single motor or manually. The existing unlocking mechanism is not suitable for seats with both manual and motor adjustments. Summary of the Invention

[0003] The object of the present invention is to provide an unlocking mechanism suitable for seat adjustment and a method of using the same, which can switch between electric control and manual control adjustment functions by using an unlocking handle and an adjustment handle.

[0004] The embodiment of the present invention is achieved as follows:

[0005] The unlocking mechanism according to claim 1, wherein the first unlocking handle is provided with a second unlocking handle assembly hole, a first unlocking handle assembly hole and a first tension spring assembly hole. The first unlocking handle is provided with a first unlocking handle assembly hole and a first tension spring assembly hole. The first handle assembly hole is provided at the middle position of one end of the handle bracket, so that the handle bracket is in a "Y" shape when viewed from above, and the first handle assembly hole passes through the rectangular through slot. The cable assembly is assembled in the rectangular through slot, and the second handle assembly hole of the cable assembly matches the position of the first handle assembly hole. The lock tooth is provided with a third handle assembly hole matching the first handle assembly hole. The lock tooth is provided on one side of the handle bracket, and a first tooth is provided on one side of the lock tooth. The adjusting handle passes through the lock tooth, the handle bracket and the cable assembly in sequence. The unlocking handle is provided with a second unlocking handle assembly hole matching the first unlocking handle assembly hole. A second tension spring assembly hole is provided below the second unlocking handle assembly hole, and a second tooth is provided on the unlocking handle that engages with the first tooth. One end of the hook tension spring is connected to the second tension spring assembly hole. The first tension spring assembly hole is provided with a first bolt, and one end of the hook tension spring is connected to the first bolt.

[0006] In a preferred embodiment of the present invention, the above-mentioned cable assembly includes a cable switch and a cable head connector. The cable switch is inserted into a rectangular through groove. A second handle assembly hole is provided on the cable switch, which is a rectangular hole matching the adjustment handle. A first cable connection hole is provided below the cable switch; the cable head connector is a U-shaped connector. After the open end hole of the cable head connector is aligned with the first cable connection hole, it is fastened with bolts, and the cable joint is connected to the cable head connector.

[0007] In a preferred embodiment of the present invention, the third handle assembly hole of the lock tooth is in the shape of a large cut circle, and the first tooth is arranged on the outer edge of the lock tooth and located on one side of the parallel surface of the large cut circle.

[0008] In a preferred embodiment of the present invention, the above-mentioned unlocking handle includes: an integrally formed horizontal connecting rod and an oblique connecting rod, one end of the horizontal connecting rod is provided with a second tooth, and the other end of the horizontal connecting rod is connected to a handle on the outside; the oblique connecting rod is arranged obliquely downward and forms an acute angle with the horizontal connecting rod, and a second unlocking handle assembly hole is provided through the oblique connecting rod, and a reserved space for assembling a tension spring hook assembly position is provided below the second unlocking handle assembly hole, and the second tension spring assembly hole passes through the reserved space.

[0009] An unlocking mechanism for seat adjustment and a method for using the same, comprising any of the unlocking mechanisms described above, the method comprising the following steps:

[0010] When the seat is in the locked state, the unlocking handle engages with the lock teeth to lock the manual adjustment mode; the cable assembly is connected to the motor, and the motor operates normally;

[0011] When the seat is switched to manual adjustment, press the unlocking handle downwards, the unlocking handle leaves the lock tooth, unlocks the manual adjustment mode, and moves the adjustment handle upwards to adjust the backrest angle; the cable assembly pulls the motor, and the motor is locked;

[0012] When the manual adjustment is completed, the adjusting handle and the unlocking handle are released, and the unlocking handle is reset under the action of the hook tension spring and continues to clamp the lock teeth, thereby locking the adjusting handle.

[0013] The beneficial effects of the embodiments of the present invention are as follows: the return force of the hook spring causes the teeth on the unlocking handle to tightly mate with the locking teeth, and pressing the unlocking handle downward unlocks the adjustment handle; the cable switch and cable head connector connect the cable, which is connected to the motor switch position, and the adjustment handle adjusts the cable to unlock the motor. When using the manual adjustment function, simply lift the adjustment handle up to its maximum to enable the manual adjustment function. When manual adjustment is no longer needed, press the unlocking handle downward to automatically return the adjustment handle to its original position, thus disabling the manual adjustment function. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 An exploded view of the unlocking mechanism according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the assembly of the unlocking structure according to an embodiment of the present invention;

[0017] Figure 3 This is a locked state diagram of the unlocking structure according to an embodiment of the present invention;

[0018] Figure 4 The unlocking structure of the embodiment of the present invention opens the state diagram;

[0019] Icon: 1-handle bracket; 2-cable assembly; 3-locking tooth; 4-adjusting handle; 5-unlocking handle; 6-hook spring; 101-first handle assembly hole; 102-first unlocking handle assembly hole; 103-first tension spring assembly hole; 104-rectangular through slot; 201-second handle assembly hole; 202-cable switch; 203-cable head connector; 301-third handle assembly hole; 302-first tooth; 501-second unlocking handle assembly hole; 502-second tension spring assembly hole; 503-second tooth. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0023] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0025] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0026] First embodiment

[0027] See Figure 1-2 This embodiment provides an unlocking mechanism suitable for seat adjustment and a method of using the same. When used, the mechanism switches between electric control adjustment and manual control adjustment. That is, during electric control, the mechanism prevents manual control adjustment. When manual adjustment is required, the mechanism must be unlocked before manual adjustment can be achieved. During manual adjustment, the mechanism is in a locked state, that is, electric control adjustment cannot be used. The unlocking mechanism includes a handle bracket 1 and a cable assembly 2, a locking tooth 3, an adjustment handle 4, an unlocking handle 5, and a hook tension spring 6.

[0028] Handle bracket 1: The handle bracket 1 is provided with a circular first handle assembly hole 101, a first unlocking handle assembly hole 102 located to the lower left of the first handle assembly hole 101, and a first tension spring assembly hole 103 located to the right of the first unlocking handle assembly hole 102.

[0029] A rectangular through slot 104 is provided in the middle position of one end of the handle bracket 1, so that the handle bracket 1 appears in a "Y" shape / tuning fork shape when viewed from above, and the two fork arms are of different lengths. The first handle assembly hole 101 and the first unlocking handle assembly hole 102 pass through the rectangular through slot 104.

[0030] Cable assembly 2: The cable assembly 2 is assembled in the rectangular through-slot 104, and the second handle assembly hole 201 of the cable assembly 2 matches the position of the first handle assembly hole 101. Specifically, the cable assembly 2 includes a cable switch 202 and a cable head connector 203. The cable switch 202 is inserted into the rectangular through-slot 104. The second handle assembly hole 201 is provided through the cable switch 202, which is a rectangular hole that matches the adjustment handle 4. The first cable connection hole is provided below the cable switch 202; the cable head connector 203 is a U-shaped connector. The open end hole of the cable head connector 203 is aligned with the first cable connection hole and then fastened with bolts. The cable connector is connected to the cable head connector 203, and the cable connector is connected to the unlocking switch of the backrest motor.

[0031] Locking tooth 3: The locking tooth 3 is provided with a third handle assembly hole 301 that matches the first handle assembly hole 101. The locking tooth 3 is provided on one side of the handle bracket 1, and a first tooth 302 is provided on one side of the locking tooth 3. Specifically, the third handle assembly hole 301 of the locking tooth 3 is in the shape of a large cut circle, and the first tooth 302 is provided on the outer edge of the locking tooth 3 and is located on the side parallel to the large cut circle.

[0032] Adjusting handle 4: The adjusting handle 4 passes through the lock tooth 3, the handle bracket 1 and the cable assembly 2 in sequence, and the corresponding adjusting handle 4 is sequentially provided with a large cut cylinder, a round cylinder, a square cylinder and a round cylinder that cooperate with the lock tooth 3.

[0033] Unlocking handle 5: The unlocking handle 5 is provided with a second unlocking handle assembly hole 501 matching the first unlocking handle assembly hole 102, a second tension spring assembly hole 502 is provided below the second unlocking handle assembly hole 501, and a second tooth 503 is provided on the unlocking handle 5 to fit with the first tooth 302.

[0034] The unlocking handle 5 includes an integrally formed horizontal connecting rod and an oblique connecting rod, one end of the horizontal connecting rod is provided with a second tooth 503, and the other end of the horizontal connecting rod is connected to a handle on the outside; the oblique connecting rod is arranged obliquely downward and forms an acute angle with the horizontal connecting rod, and a second unlocking handle assembly hole 501 is provided on the oblique connecting rod, and a reserved space for assembling a tension spring hook assembly position is provided below the second unlocking handle assembly hole 501, and a second tension spring assembly hole 502 passes through the reserved space.

[0035] Hook tension spring 6: One end of the hook tension spring 6 is connected to the second tension spring assembly hole 502; the first tension spring assembly hole 103 is provided with a first bolt, and one end of the hook tension spring 6 is connected to the first bolt.

[0036] An unlocking mechanism for seat adjustment and a method for using the same, comprising any of the unlocking mechanisms described above, the method comprising the following steps:

[0037] When the seat is in the locked state, the unlocking handle engages with the lock teeth to lock the manual adjustment mode; the cable assembly is connected to the motor, and the motor operates normally;

[0038] When the seat is switched to manual adjustment, press the unlocking handle downwards, the unlocking handle leaves the lock tooth, unlocks the manual adjustment mode, and moves the adjustment handle upwards to adjust the backrest angle; the cable assembly pulls the motor, and the motor is locked;

[0039] When the manual adjustment is completed, the adjusting handle and the unlocking handle are released, and the unlocking handle is reset under the action of the hook tension spring and continues to clamp the lock teeth, thereby locking the adjusting handle.

[0040] See Figure 3 The seat is initially in a locked state, at which point the seat back angle can only be adjusted by electric button control.

[0041] See Figure 4 , in the open state of the seat, move the adjustment handle 4 upward to the maximum position to unlock the manual adjustment function of the seat back angle.

[0042] In summary, the return force of the hook spring in the present invention causes the teeth on the unlocking handle 5 to fit tightly with the lock teeth 3. Pressing the unlocking handle 5 downward unlocks the adjustment handle 4. The cable switch 202 and the cable head connector 203 connect the cable, which is connected to the motor switch position. The adjustment handle 4 adjusts the cable to unlock the motor. When using the manual adjustment function, simply lift the adjustment handle 4 up to its maximum position to enable the manual adjustment function. When the manual adjustment function is not needed, press the unlocking handle 5 downward to automatically return the adjustment handle 4 to its original position, thus disabling the manual adjustment function.

[0043] This specification describes examples of embodiments of the present invention and is not intended to illustrate and describe all possible forms of the invention. It should be understood that the embodiments described in this specification may be implemented in a variety of alternative forms. The figures need not be drawn to scale; some features may be enlarged or reduced to show details of particular components. The specific structural and functional details disclosed should not be interpreted as limiting, but merely as a representative basis for teaching those skilled in the art to implement the invention in various forms. It should be understood by those skilled in the art that the multiple features illustrated and described with reference to any one of the figures may be combined with features illustrated in one or more other figures to form embodiments that are not explicitly illustrated or described. The illustrated combined features provide representative embodiments for typical applications. However, various combinations and variations of features consistent with the teachings of the present invention may be used for specific applications or implementations as needed.

[0044] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An unlocking mechanism suitable for seat adjustment, characterized in that: The unlocking mechanism includes: a handle bracket, wherein a first handle assembly hole, a first unlocking handle assembly hole, and a first tension spring assembly hole are formed in the forward direction of the handle bracket; a rectangular through-slot is formed in the middle of one end of the handle bracket, so that the handle bracket is in a "Y" shape when viewed from above, and the first handle assembly hole passes through the rectangular through-slot; A cable assembly, the cable assembly being assembled in the rectangular through slot, wherein the second handle assembly hole of the cable assembly matches the position of the first handle assembly hole; A lock tooth, wherein a third handle assembly hole matching the first handle assembly hole is provided on the lock tooth, the lock tooth is provided on one side of the handle bracket, and a first tooth is provided on one side of the lock tooth; The adjustment handle passes through the lock teeth, the handle bracket and the cable assembly in sequence; An unlocking handle, wherein the unlocking handle is provided with a second unlocking handle assembly hole matching the first unlocking handle assembly hole, a second tension spring assembly hole is provided below the second unlocking handle assembly hole, and a second tooth is provided on the unlocking handle to engage with the first tooth; A hook tension spring, one end of which is connected to the second tension spring assembly hole; a first bolt is provided in the first tension spring assembly hole, and one end of the hook tension spring is connected to the first bolt.

2. The unlocking mechanism for seat adjustment according to claim 1, characterized in that: The cable assembly comprises: A cable switch is inserted into the rectangular through slot, the cable switch is provided with a second handle assembly hole which is a rectangular hole matching the adjustment handle, and a first cable connection hole is provided below the cable switch; A cable head connector is a U-shaped connector. The open end hole of the cable head connector is aligned with the first cable connection hole and then fastened with bolts. The cable joint is connected to the cable head connector.

3. The unlocking mechanism for seat adjustment according to claim 1, characterized in that: The third handle assembly hole of the lock tooth is in the shape of a large cut circle, and the first tooth is arranged on the outer edge of the lock tooth and is located on one side of the parallel surface of the large cut circle.

4. The unlocking mechanism for seat adjustment according to claim 1, characterized in that: The unlocking handle includes an integrally formed: a horizontal connecting rod, wherein one end of the horizontal connecting rod is provided with the second tooth, and the other end of the horizontal connecting rod is connected to the outer side of a handle; An oblique connecting rod is arranged obliquely downward and forms an acute angle with the horizontal connecting rod. The oblique connecting rod is provided with a second unlocking handle assembly hole. A reserved space for assembling a tension spring hook assembly position is provided below the second unlocking handle assembly hole, and the second tension spring assembly hole passes through the reserved space.

5. A method for using an unlocking mechanism for seat adjustment, comprising the unlocking mechanism according to any one of claims 1 to 4, characterized in that: The method of use comprises the following steps: When the seat is in the locked state, the unlocking handle engages with the lock teeth to lock the manual adjustment mode; the cable assembly is connected to the motor, and the motor operates normally; When the seat is switched to manual adjustment, press the unlocking handle downwards, the unlocking handle leaves the lock tooth, unlocks the manual adjustment mode, and moves the adjustment handle upwards to adjust the backrest angle; the cable assembly pulls the motor, and the motor is locked; When the manual adjustment is completed, the adjusting handle and the unlocking handle are released, and the unlocking handle is reset under the action of the hook tension spring and continues to clamp the lock teeth, thereby locking the adjusting handle.

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