TW202030103A - Motor driven mechanic of seat rail - Google Patents

Abstract

A motor driven mechanic of seat rail having a front frame, a rear frame, a gear assembly, a screw rod and a buffering element is provided. The front frame and the rear frame are fixed on an outer rail of the seat rail and arranged far from each other. The screw rod is arranged across between the front frame and the rear frame. The gear assembly is driven by a driving device is foxed on an inner rail of the seat rail and geared with the screw rod. The buffering element is arranged on the rear frame to be a buffer between the rear frame and the gear assembly. Thereby, noises caused by a collision between the gear assembly and the rear frame is prevented.

Description

Electric mechanism of seat slide

The invention relates to a sliding rail, and particularly refers to an electric mechanism of a seat sliding rail that can effectively prevent abnormal noise.

Regarding the seat, taking a car seat as an example, in order to adjust the position of the car seat in the car, a seat slide rail that can slide back and forth is provided between the seat and the car body. The seat slide rail includes two slide rails spaced side by side, each slide rail includes an outer rail fixed to the vehicle body and an inner rail slidably connected to the outer rail, and the seat is fixed on the inner rail.

In order to control the sliding of the inner rail relative to the outer rail, electric sliding rails have been available on the market to use a driver to drive the inner rail to slide relative to the outer rail.

However, when the existing electric sliding rail drives the inner rail to slide, once it slides to the dead center of the stroke, for example, a tall user slides the seat toward the rear of the car to the bottom, and adjacent objects collide with each other. The abnormal sound of percussion has been criticized for a long time, especially when such abnormal sound appears in luxury and high-end cars.

The object of the present invention is to provide a seat slide electric mechanism that can effectively prevent abnormal noise.

In order to achieve the above objective, the present invention provides an electric mechanism for a seat slide rail, which is arranged between the inner rail and the outer rail of the slide rail and is driven by a driving device. The electric mechanism includes: a front frame and a rear frame, mutually Fixed to the outer rail far away; a lead screw fixedly bridged between the front frame and the rear frame; a gear assembly fixed to the inner rail and driven by the driving device, the gear assembly is engaged On the lead screw; and a buffer member, selectively disposed in one of the gear assembly and the rear frame; wherein the buffer member is buffered between the gear assembly and the rear frame to prevent abnormal noise.

Compared with the prior art, the present invention has the following effects: it has the effect of preventing abnormal noise when the adjusting slide slides to the bottom.

The detailed description and technical content of the present invention are described as follows in conjunction with the drawings. However, the drawings are only provided for reference and description, and are not intended to limit the present invention.

As shown in FIG. 1, the present invention provides an electric mechanism for a seat slide rail. In this embodiment, a car seat slide rail is taken as an example for description. The seat slide rail includes two slide rails 800 spaced apart from each other. Each slide rail 800 includes an outer rail 8b fixed to the vehicle body and an inner rail 8a slidably connected to the outer rail 8b. The driving device 7 simultaneously drives the inner rail 8a of each sliding rail 800 to slide relative to the outer rail 8b. The seat (not shown in the figure) is fixed on the inner rail 8a.

As shown in Figures 1 to 3 and Figures 5 to 8, the electric mechanism 100 of the present invention includes: a front frame 1b, a rear frame 1a, a buffer member 2, a lead screw 3, and a gear assembly 5. It includes a mounting frame 4, a plurality of fixing frames 6, and a connecting frame H.

The front frame 1b and the rear frame 1a are fixed to the inner bottom wall of the outer rail 8b away from each other. Preferably, as shown in FIG. 4, the rear frame 1a includes a bottom plate 11 and two side walls 12 connected to the two sides of the bottom plate 11 side by side to form a U-shaped structure. In addition, the rear frame 1a may further include a fixing plate 13, and the rear frame 1a is fixed to the outer rail 8b by the fixing plate 13. Among them, the fixing plate 13 is not only connected to the bottom plate 11 but also connected to the two side walls 12 to have better structural strength.

The lead screw 3 is fixedly bridged between the front frame 1b and the rear frame 1a. In order to prevent the lead screw 3 from rotating relative to the rear frame 1a, the lead screw 3 is mainly sandwiched between the two side walls 12. In this embodiment, the lead screw 3 has a non-circular section 31 (for example, The outer periphery of the lead screw 3 forms at least one cross section) as an example for description. Thereby, the two side walls 12 of the rear frame 1a can be clamped to the non-circular section 31 of the lead screw 3, especially the straight inner wall of the side wall 12 is clamped to the straight section of the non-circular section 31. The outer section ensures that the lead screw 3 cannot rotate relative to the rear frame 1a. In addition, it must be noted that an insertion space 14 is formed between the aforementioned bottom plate 11, the two side walls 12 and the lead screw 3 (as shown in FIG. 8).

The gear assembly 5 is fixed to the inner top wall of the inner rail 8a and is driven by the driving device 7. Specifically, the driving rod 71 of the driving device 7 is inserted into the first insertion hole 51 of the gear assembly 5 to use the driving rod 71 to drive the gear Component 5 moves. The gear assembly 5 is screwed to the lead screw 3 and can move relative to the lead screw 3. Specifically, the lead screw 3 is inserted into the second insertion hole 52 of the gear assembly 5 to engage the gear assembly 5 with the lead screw 3 to make The gear assembly 5 can move relative to the lead screw 3 after being moved. Preferably, the gear assembly 5 has the aforementioned mounting frame 4, and the gear assembly 5 is fixed to the inner top wall of the inner rail 8 a by the mounting frame 4.

For example, as shown in FIGS. 3 and 8, the gear assembly 5 may include a gear assembly body (component symbols not marked) and a mounting frame 4, and the gear assembly system is fixed in the mounting frame 4; In other embodiments not shown in the formula, the mounting frame 4 can also be protruded from the gear assembly body itself.

The buffer 2 can be arranged on the rear frame 1a or the gear assembly 5, which is not limited in the present invention. In this embodiment, the arrangement on the rear frame 1a is taken as an example for description. The cushioning member 2 can be made of various types of cushioning materials, and the present invention is not limited thereto. In this embodiment, rubber is used as an example for description.

As shown in FIGS. 4 and 8, preferably, the buffer member 5 may include a buffer body 21 having a clamping jaw 211, so that the buffer member 2 can be clamped to the lead screw by the clamping jaw 211 3, so that the clamped cushion 2 can be located anywhere between the gear assembly 5 and the rear frame 1a (for example, the clamped cushion 2 is pressed against the rear frame 1a or against the gear assembly 5). Conducive to buffering. Alternatively, the buffer member 5 may include a buffer body 21 and a protruding body 22. The protruding body 22 protrudes from the buffer body 21, so that the buffer member 2 can be inserted into the protruding body 22 corresponding to the insertion space 14 so that the buffer member 2 It is fixed to the rear frame 1a, while allowing the buffer body 21 to be located between the gear assembly 5 and the rear frame 1a to facilitate buffering. Of course, it is best for the buffer member 2 to have both the clamping jaw 211 and the convex body 22 to have the best fixing effect, thereby preventing the buffer member 2 from falling off from the rear frame 1a.

As shown in Figures 7 and 8, with this, when the user moves the gear assembly 5 toward the rear of the vehicle to the bottom by adjusting the seat, there is a buffer 2 between the gear assembly 5 and the rear frame 1a. , The existing situation where the gear assembly 5 would directly hit the rear frame 1a and produce a percussive sound has been changed to hit the buffer body 21 of the buffer member 2 and be buffered, so no abnormal sound is produced. In short, the electric mechanism 100 of the present invention can effectively prevent the gear assembly 5 from directly colliding with the rear frame 1a, so it has a noise prevention function.

As shown in Figure 1, Figure 5 and Figure 6, the aforementioned two fixing frames 6 are respectively fixed on the inner rails 8a of the two sliding rails 800, and the connecting frame H is detachably connected between the two fixing frames 6. As for The aforementioned driving device 7 is fixed to the connecting frame H. Therefore, when the strength test of the sliding rail 800 is to be performed, the adapter frame H can be easily disassembled together with the driving device 7, that is, the driving device 7 is modularized with the adapter frame H, and the user As long as the adapter frame H is removed from between the two fixing frames 6, the entire module can be removed together with the drive device 7, so that there is no need to remove the drive element (such as a motor) and a drive shaft (such as the drive shaft of the motor). ) And the carrying frame (for example, the frame used to erect the motor) and other components are slowly removed one by one, so it has the effect of quick disassembly and quick assembly.

In summary, this invention clearly achieves the intended purpose of use and solves the deficiencies of the previous technology. It fully meets the requirements of an invention patent application. The application is filed in accordance with the Patent Law. Please check and grant the patent in this case to protect the inventor. s right.

The above are only the preferred and feasible embodiments of the present invention, and are not limited to the scope of the present invention. Any equivalent structural changes made by using the description and drawings of the present invention are all included in the present invention. Within the scope of the rights, he shall be Chen Ming.

100: electric mechanism

1a: Rear shelf

1b: Front frame

11: bottom plate

12: side wall

13: fixed plate

14: Docking space

2: Buffer

21: Buffer body

211: Clamping Tiger Mouth

22: convex body

3: Lead screw

31: non-circular segment

4: Mounting frame

5: Gear assembly

51: first jack

52: second jack

6: fixed frame

7: Drive

71: drive rod

H: Connecting frame

800: slide

8a: inner rail

8b: Outer rail

Figure 1 shows the seat slide rail and its electric mechanism of the present invention.

FIG. 2 is a partial perspective view of the present invention according to FIG. 1.

FIG. 3 is a partial exploded schematic diagram of the present invention according to FIG. 1.

Fig. 4 is an exploded perspective view between the buffer member and the rear frame in the present invention.

5 is a schematic cross-sectional view in one direction according to FIG. 1 of the present invention.

FIG. 6 is a partial enlarged view of the present invention according to FIG. 5.

FIG. 7 is a schematic cross-sectional view in another direction according to FIG. 1 of the present invention.

FIG. 8 is a partial enlarged view of the present invention according to FIG. 7.

1a: Rear shelf

1b: Front frame

2: Buffer

3: Lead screw

6: fixed frame

H: Connecting frame

800: slide

8a: inner rail

8b: Outer rail

Claims (9)

An electric mechanism of a seat slide rail is arranged between the inner rail and the outer rail of the slide rail and is driven by a driving device. The electric mechanism includes: A front frame and a rear frame are fixed to the outer rail far away from each other; A lead screw fixedly bridges between the front frame and the rear frame; A gear assembly fixed to the inner rail and driven by the driving device, the gear assembly being engaged with the lead screw; and A buffer, optionally arranged on one of the gear assembly and the rear frame; Wherein, the buffer member is buffered between the gear assembly and the rear frame to prevent abnormal noise. The electric mechanism of the seat slide rail according to claim 1, wherein the buffer member has a clamping jaw, and the buffer member is clamped to the lead screw by the clamping jaw and located between the gear assembly and the rear frame . According to claim 1 or 2, the electric mechanism of the seat slide rail, wherein the buffer member has a convex body, the rear frame is formed with an insertion space, and the buffer member is inserted into the insertion space corresponding to the convex body. Fixed to the rear frame. The electric mechanism of the seat slide rail according to claim 3, wherein the rear frame includes a bottom plate and two side walls connected side by side to two sides of the bottom plate, and the lead screw is sandwiched between the two side walls , The insertion space is formed between the bottom plate, the two side walls and the lead screw. The electric mechanism of the seat slide rail according to claim 4, wherein the lead screw has a non-circular section, and the lead screw is clamped by the two side walls by the non-circular section and cannot be relative to the rear frame Rotate. The electric mechanism of the seat slide rail according to claim 4, wherein the rear frame further includes a fixing plate, the fixing plate is at least connected to the bottom plate, and the rear frame is fixed to the outer rail by the fixing plate. According to claim 3, the electric mechanism of the seat slide rail, wherein the buffer member further has a buffer body, and the protrusion protrudes from the buffer body. The electric mechanism of the seat slide rail according to claim 1, further comprising an adapter frame and two fixing frames, the two fixing frames are fixed to the inner rails of the two sliding rails, and the adapter frame can be assembled and dismounted to bridge Between the two fixing frames, and the connecting frame is also fixed with the driving device. The electric mechanism of the seat slide rail of claim 1, wherein the gear assembly has a mounting frame, and the gear assembly is fixed to the inner rail by the mounting frame.

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