Vehicle door stopper

Abstract

The utility model relates to a car door limiter which comprises a limiting box, a pull arm and a plurality of cushions, and the limiting box is provided with an end face and a pull arm channel arranged from the end face. A pull arm is inserted into the pull arm channel; a fixed seat is arranged at one end of the pull arm; the plurality of buffer pads are combined on the end face in a mold injection molding mode, are arranged on two sides of the pull arm channel and can abut against the fixed seat; wherein the draw arm comprises a metal main arm and a plastic outer layer coated on the metal main arm, a plurality of concave points are formed on the metal main arm, and the plastic outer layer is coated on the plurality of concave points. Therefore, the buffering cushion is combined on the limiting box in a mold injection molding mode, so that the automobile door limiting device has the advantages of simplified structure and automatic manufacturing.

Description

TECHNICAL FIELD

[0001] The utility model relates to a limiting structure for a vehicle door, and in particular to a door limiter. BACKGROUND

[0002] Conventional door limiters are mainly used to limit the opening degree of a vehicle door. The door limiter comprises a limiting box and a pull arm. The limiting box is fixed to the vehicle door and has a pull arm passage. The pull arm is connected to the vehicle door and the vehicle body and is arranged in the pull arm passage. The pull arm is engaged with the limiting box to achieve multi-stage positioning, so as to prevent the vehicle door from being opened too wide or to keep the opening position of the vehicle door when going uphill or downhill.

[0003] However, when the vehicle door is opened to the maximum, the end of the pull arm may hit the limiting box. With the progress of modern technology, the door limiter must be simplified in structure, automated in production, and reduced in weight. Therefore, how to simplify and strengthen the structure of the limiting box, automate the production, reduce the width and weight of the pull arm, and increase the strength and fatigue durability of the pull arm has become the subject of the utility model. SUMMARY

[0004] The utility model aims to provide a door limiter. The buffer pads are combined with the limiting box by mold injection molding, so as to simplify the structure of the door limiter and automate the production.

[0005] In the embodiments of the utility model, the utility model provides a door limiter, which comprises a limiting box having an end face and a pull arm passage arranged on the end face; a pull arm inserted into the pull arm passage, one end of the pull arm having a fixing seat; and a plurality of buffer pads combined with the end face by mold injection molding, the plurality of buffer pads being arranged on both sides of the pull arm passage and capable of resisting the fixing seat; wherein the pull arm comprises a metal main arm and a plastic outer layer covering the metal main arm, and the metal main arm is formed with a plurality of concave points, and the plastic outer layer covers the plurality of concave points.

[0006] In one embodiment, the end face is provided with a plurality of recessed grooves arranged on both sides of the pull arm passage and a plurality of protrusions protruding from the inner bottom wall of each recessed groove, each buffer pad has a clamping block filled in each recessed groove, and each clamping block is provided with a plurality of clamping grooves embedded with the plurality of protrusions.

[0007] In one embodiment, the metal main arm has a horizontal flat bar, a longitudinal blocking rod extending from one end of the horizontal flat bar, and a torsion section formed at the intersection of the horizontal flat bar and the longitudinal blocking rod, and the plastic outer layer is provided with a plurality of limiting recesses.

[0008] In one embodiment, the transverse flat strip extends a boss away from one end of the longitudinal blocking rod, the boss is provided with a pivot hole, the plastic outer layer is wrapped around the boss and the inner periphery of the pivot hole, and the pull arm further comprises a rotating seat pivoted to the pivot hole.

[0009] In one embodiment, the plurality of concave points are formed on the upper and lower sides of the transverse flat strip, the longitudinal blocking rod is provided with a through hole, the plastic outer layer has a plurality of first convex points fitted into the plurality of concave points and a plurality of second convex points fitted into the through hole, and the fixing seat is composed of the longitudinal blocking rod and the plastic outer layer wrapped around the outside of the longitudinal blocking rod.

[0010] In one embodiment, the width of the transverse flat strip is less than 9 mm, the left and right sides of the transverse flat strip are a continuous flat surface, each of the concave points is a rectangular concave point, the depth of each of the rectangular concave points is 0.2 mm, the width is 0.5 mm, the length is 0.5 mm, and the spacing between the upper, lower, left, and right of the plurality of concave points is 2 mm.

[0011] In one embodiment, further comprising a pair of sliding blocks and a pair of elastic members, the limiting box is provided with a pair of opposite movable channels on the inner peripheral wall of the pull arm channel, the pair of sliding blocks are slidably inserted into the pair of movable channels and abut against the pull arm, and each of the elastic members is accommodated in each of the movable channels and elastically supports the limiting box and each of the sliding blocks.

[0012] In one embodiment, each of the movable channels is provided with a semicircular groove, each of the sliding blocks extends a semicircular rib fitted into each of the semicircular grooves, and each of the sliding blocks is provided with a drain hole adjacent to the surface of the pull arm.

[0013] In one embodiment, further comprising a pair of blocking pieces, the end surface is provided with a pair of accommodating grooves arranged on both sides of the pull arm channel and communicating with each of the movable channels, each of the blocking pieces is inserted into each of the accommodating grooves, each of the elastic members is elastically supported between each of the blocking pieces and each of the sliding blocks, and the limiting box is provided with a pair of tool insertion holes opposite to and communicating with the pair of accommodating grooves away from one side of the end surface.

[0014] In one embodiment, further comprising a pair of nuts, the pair of nuts are wrapped inside the limiting box by plastic injection molding or injection molding, the pair of nuts are arranged on both sides of the pull arm channel, each of the nuts has a screw hole exposed on one side of the limiting box away from the end surface, and the limiting box is provided with a pair of grooves arranged between the pull arm channel and each of the screw holes away from the end surface.

[0015] Based on the above, compared with the conventional assembly by manpower and structural clamping, the utility model combines the cushion pad on the limiting box by mold injection molding, thereby achieving the advantages of simplified structure, saved manpower cost, and automatic production of the door limiter. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional assembly view of the door limiter.

[0017] Figure 2 It is another three-dimensional assembly view of the door limiter.

[0018] Figure 3 It is an assembly sectional view of the door limiter.

[0019] Figure 4 It is another assembly sectional view of the door limiter.

[0020] Figure 5 It is another assembly sectional view of the door limiter.

[0021] Figure 6 It is a three-dimensional exploded view of the limiting box, the buffer pad, the sliding block, the elastic member and the blocking sheet.

[0022] Figure 7 It is a three-dimensional assembly view of the limiting box, the sliding block, the elastic member and the blocking sheet.

[0023] Figure 8 It is a three-dimensional assembly view of the limiting box and the nut.

[0024] Figure 9 It is a three-dimensional schematic view of the metal main arm.

[0025] Figure 10 It is a three-dimensional exploded view of the pulling arm.

[0026] In the figure:

[0027] 10: door limiter; 1: limiting box; 11: end face; 111: recessed groove; 112: tab; 113: containing groove; 114: tool insertion hole; 12: pulling arm passage; 13: movable passage; 131: semicircular groove; 132: passage opening; 14: recess; 2: pulling arm; 21: fixed seat; 22: metal main arm; 221: transverse flat bar; 2211: concave point; 2212: convex platform; 2213: pivot hole; 2214: continuous flat surface; 222: longitudinal blocking rod; 2221: through hole; 223: torsion section; 23: plastic outer layer; 231: limiting recess; 24: rotating seat; 3: buffer pad; 31: clamping block; 311: clamping groove; 4: sliding block; 41: semicircular convex rib; 42: drainage hole; 5: elastic member; 6: blocking sheet; 7: nut; 71: screw hole. DETAILED DESCRIPTION

[0028] The utility model will be further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0029] Please refer to Figures 1 to 10 The utility model provides a car door stopper for limiting the degree of opening of a car door (not shown in the drawing), which mainly comprises a limiting box 1, a pull arm 2 and a plurality of buffer pads 3.

[0030] As Figures 1 to 8 shown, the limiting box 1 is a plastic product, for example, it can be a plastic injection molding piece or an injection molding piece formed by plastic injection molding. The limiting box 1 has an end face 11 and a pull arm passage 12 provided from the end face 11. The inner peripheral wall of the pull arm passage 12 is provided with a pair of opposite movable passages 13. Each movable passage 13 is a through passage penetrating through both ends of the limiting box 1, and each movable passage 13 forms a passage opening 132 at both ends of the limiting box 1, respectively. The pull arm passage 12 and the movable passage 13 cross and communicate with each other.

[0031] Among them, the end face 11 is provided with a plurality of recessed grooves 111 arranged on both sides of the pull arm passage 12 and a plurality of tabs 112 respectively protruding from the inner bottom wall of each recessed groove 111. The end face 11 is provided with a pair of containing grooves 113 arranged on both sides of the pull arm passage 12 and communicating with each movable passage 13, wherein the containing grooves 113 are arranged parallel to the through direction of the pull arm passage 12.

[0032] As Figures 1 to 5 , Figures 9 to 10 shown, the pull arm 2 is inserted into the pull arm passage 12. One end of the pull arm 2 has a fixed seat 21 and the other end is pivotally connected with a rotating seat 24. Among them, the limiting box 1 is installed in the inner space of the car door, and the rotating seat 24 is arranged on the car body. Generally speaking, the rotating seat 24 is a twisting device. When the user opens or closes the car door, the limiting box 1 moves with the car door. When the limiting box 1 moves according to the displacement of the car door, the limiting box 1 will be at different positions relative to the pull arm 2.

[0033] The embodiment of the utility model pull arm 2 is described in detail as follows. The pull arm 2 comprises a metal main arm 22 (as Figure 9 ) and a plastic outer layer 23 (as Figure 10 ) covering the metal main arm 22. Among them, the metal main arm 22 has a transverse flat strip 221, a longitudinal stop rod 222 extending from one end of the transverse flat strip 221, and a torsion section 223 formed at the intersection of the transverse flat strip 221 and the longitudinal stop rod 222. The fixed seat 21 is composed of the longitudinal stop rod 222 and the plastic outer layer 23 covering the outside of the longitudinal stop rod 222.

[0034] In addition, the plastic outer layer 23 is provided with a plurality of limiting recesses 231, the upper and lower sides of the transverse flat strip 221 are provided with a plurality of concave points 2211, and the longitudinal blocking rod 222 is provided with a through hole 2221. In a preferred embodiment, the process of the pull arm 2 is performed by encapsulated injection so that the plastic outer layer 23 is wrapped around the metal main arm 22. Therefore, after shaping, the plastic outer layer 23 has a plurality of first convex points (not shown in the figure) embedded in the plurality of concave points 2211 and a plurality of second convex points (not shown in the figure) embedded in the through hole 2221, that is, the plastic outer layer 23 wraps the plurality of concave points 2211 and fills the through hole 2221.

[0035] In the embodiment, the width of the transverse flat strip 221 is less than 9 mm, the left and right sides of the transverse flat strip 221 are a continuous flat surface 2214, that is, there is no cutting edge on the continuous flat surface 2214, each concave point 2211 is a rectangular concave point, the depth of each rectangular concave point is 0.2 mm, the width is 0.5 mm, and the length is 0.5 mm, and the spacing between the upper, lower, left, and right of the plurality of concave points 2211 is 2 mm.

[0036] Based on the traditional door stopper, a encapsulated joint hole is designed in the middle of the main arm for the encapsulation joint. In addition, cutting edges are formed on both sides of the main arm by stamping, which requires a wider width of the main arm, and will affect the weight, strength, fatigue resistance and other factors of the door stopper.

[0037] Compared with the prior art, the upper and lower sides of the transverse flat strip 221 are encapsulated by a plurality of concave points 2211 to achieve the stability of the plastic outer layer 23 and the metal main arm 22, and at the same time meet the requirement of no cutting edge, and the width of the metal main arm 22 is smaller.

[0038] Furthermore, the transverse flat strip 221 extends a boss 2212 away from the longitudinal blocking rod 222, the boss 2212 is provided with a pivot hole 2213, the plastic outer layer 23 is wrapped around the inner periphery of the boss 2212 and the pivot hole 2213, the rotating seat 24 is pivoted to the pivot hole 2213, and the plastic outer layer 23 is wrapped to the inner periphery of the pivot hole 2213 (as shown in Figure 3 ), so as to achieve the effect of stable encapsulation of the plastic outer layer 23 to the boss 2212 and stable pivoting of the rotating seat 24 to the pull arm 2.

[0039] As shown in Figures 2 to 4 , Figure 6 each buffer pad 3 is composed of soft and elastic plastic materials such as rubber or silicone, a plurality of buffer pads 3 are combined on the end face 11 by mold injection molding, and the plurality of buffer pads 3 are arranged on both sides of the pull arm channel 12. Therefore, compared with the prior art which is assembled by manpower and structural clamping, the buffer pad 3 of the present application is combined on the limiting box 1 by mold injection molding, thereby achieving the advantages of simplified structure, saved labor cost and automatic production of the door stopper 10.

[0040] In addition, when the limiting box 1 moves with the displacement of the door, the limiting box 1 will be in different positions on the pull arm 2, when the door is opened to the maximum stroke, the limiting box 1 is away from the rotating seat 24 and close to the fixed seat 21, the fixed seat 21 is turned to be perpendicular to the relative horizontal strip 221 through the torsion section 223, and can be directly corresponded to the buffer pad 3 of the limiting box 1, so that the limiting box 1 is abutted to the fixed seat 21 and is first abutted by the plurality of buffer pads 3, so as to achieve the effect of resisting the fixed seat 21 and buffering by the plurality of buffer pads 3, each buffer pad 3 has a clamping block 31 filled in each recessed groove 111, and each clamping block 31 is provided with a plurality of clamping grooves 311 embedded with the plurality of tabs 112, so that the buffer pad 3 is more stably glued in the recessed groove 111.

[0041] As shown in Figure 1 , Figures 3 to 4 、 Figures 6 to 7 The utility model discloses a door limiter 10 further includes a pair of sliders 4 and a pair of elastic members 5, the pair of sliders 4 can slip and be inserted in the pair of movable channels 13 and abut the limiting recess 231 of the pull arm 2, each elastic member 5 is accommodated in each movable channel 13 and is elastically supported on the limiting box 1 and each slider 4, the elastic member 5 is arranged in the movable channel 13 and is used to push the slider 4 and abut the pull arm 2, so that the pull arm 2 can be limited by the slider 4 and generate multi-stage positioning.

[0042] In addition, in order to prevent rusting of each element in the door limiter 10, each slider 4 is provided with a drain hole 42 adjacent to the surface of the pull arm 2, and water in the limiting box 1 can be discharged from the drain hole 42 through the movable channel 13.

[0043] In addition, each movable channel 13 of the embodiment is provided with a semicircular groove 131, each slider 4 extends a semicircular rib 41 embedded in each semicircular groove 131, the length of the semicircular rib 41 is shorter than the length of the semicircular groove 131, so that the semicircular rib 41 can follow the slider 4 and slide in the semicircular groove 131, and the corresponding semicircular rib 41 and semicircular groove 131 enable the slider 4 to move linearly and stably in the movable channel 13, in other preferred embodiments, the semicircular groove can also be arranged on the slider 4, and the semicircular rib is arranged to extend from the inner wall of the movable channel 13, achieving the same effect.

[0044] In addition, in order to prevent rusting of each element in the door limiter 10, each slider 4 is provided with a drain hole 42 adjacent to the surface of the pull arm 2, and water in the limiting box 1 can be discharged from the drain hole 42 through the movable channel 13.

[0045] In addition, the elastic member 5 can be any mechanism having elasticity, such as an elastic rubber block or a metal spring, and in the present embodiment, a metal spring is taken as an example for description.

[0046] As shown in Figures 1 to 3 , Figures 6 to 8 , the utility model vehicle door limiter 10 further includes a pair of baffle 6, each baffle 6 is inserted in each container groove 113 and closes each passage mouth 132, and the both ends of each elastic member 5 are respectively elastically supported on each baffle 6 and each sliding block 4, so as to improve the positioning effect of the elastic member 5; in addition, in the preferred embodiment, the side of the limiting box 1 away from the end face 11 is provided with a pair of tool insertion hole 114 opposite to and communicating with the pair of container groove 113, and the maintenance personnel can insert the hand tool into the tool insertion hole 114 to push the baffle 6, so that the baffle 6 exits the container groove 113, and the baffle 6 is more convenient to disassemble. Wherein, the baffle 6 of the present embodiment is composed of metal material, so as to reinforce the structural strength of the limiting box made of plastic, but not limited thereto.

[0047] As shown in Figure 1 , Figure 3 , Figure 5 , Figures 7 to 8 , the utility model vehicle door limiter 10 further includes a pair of nut 7, the pair of nut 7 is covered in the limiting box 1 by plastic injection molding or injection molding, and the pair of nut 7 is arranged on both sides of the pull arm passage 12, each nut 7 has a threaded hole 71 exposed on the side of the limiting box 1 away from the end face 11, so that the mounting screw can be locked correspondingly, so as to fix the limiting box 1 in the inner space of the door; in addition, the side (installation side) of the limiting box 1 away from the end face 11 is provided with a pair of recess 14 arranged between the pull arm passage 12 and each threaded hole 71, and the recess 14 can correspond to the convex part or the perforation (not shown in the figure) of the door, so as to be hung on the door, so that the installation of the vehicle door limiter 10 is more convenient.

[0048] The above-mentioned embodiments are only the preferred embodiments for fully illustrating the utility model, and the protection scope of the utility model is not limited thereto. The equivalent substitution or transformation made by the person skilled in the art on the basis of the utility model is within the protection scope of the utility model.

Claims

1. A door check, characterized in that The utility model relates to a limiting box, a pull arm, and a plurality of buffer pads. The pull arm includes a metal main arm and a plastic outer layer covering the metal main arm. The metal main arm has a transverse strip, a longitudinal stopper extending from one end of the transverse strip, and a torsion section formed at the intersection of the transverse strip and the longitudinal stopper. The plastic outer layer has a plurality of first protrusions embedded in the plurality of recesses and a plurality of second protrusions embedded in the through hole. The transverse strip has a protrusion extending from the end away from the longitudinal stopper.

2. A vehicle door check according to claim 1, wherein The protrusion has a pivot hole, and the plastic outer layer covers the inner periphery of the protrusion and the pivot hole.

3. The door check of claim 1 wherein, The pull arm further includes a rotating seat pivoted to the pivot hole.

4. A vehicle door check according to claim 3, wherein The plurality of recesses are formed on the upper and lower sides of the transverse strip.

5. The door check of claim 3 wherein, The longitudinal stopper has a through hole.

6. A vehicle door check according to claim 5, wherein The fixed seat is composed of the longitudinal stopper and the plastic outer layer covering the outside of the longitudinal stopper.

7. The door check of claim 1 wherein, The width of the transverse strip is less than 9 mm.

8. A vehicle door check according to claim 7, wherein The left and right sides of the transverse strip are continuous and flat.

9. The door check of claim 7 wherein, Each recess is a rectangular recess with a depth of 0.2 mm, a width of 0.5 mm, and a length of 0.5 mm.

10. The door check of claim 8 wherein, The distance between the upper, lower, left, and right recesses is 2 mm. The limiting box further includes a pair of sliding blocks and a pair of elastic members. The limiting box has a pair of movable channels on the inner peripheral wall of the pull arm channel. The pair of sliding blocks are slidably inserted into the pair of movable channels and abut against the pull arm. Each movable channel has a semicircular groove. Each sliding block extends a semicircular rib embedded in the semicircular groove. Each sliding block has a drainage hole adjacent to the surface of the pull arm. The limiting box further includes a pair of stop pieces. The end surface has a pair of accommodating grooves arranged on both sides of the pull arm channel and connected to the pair of movable channels. Each stop piece is inserted into each accommodating groove. Each elastic member is elastically supported between each stop piece and each sliding block. The side of the limiting box away from the end surface has a pair of tool insertion holes opposite to and connected to the pair of accommodating grooves. The limiting box further includes a pair of nuts. The pair of nuts are covered by the limiting box through plastic injection molding or injection molding. The pair of nuts are arranged on both sides of the pull arm channel. Each nut has a screw hole exposed on the side of the limiting box away from the end surface. The side of the limiting box away from the end surface has a pair of grooves arranged between the pull arm channel and each screw hole.

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