Rocker arm transmission mechanism of stay wire type electric side window roller shutter

Abstract

The invention relates to a rocker arm transmission mechanism of a stay wire type electric side window roller shutter, which is used for connecting a rocker arm capable of being connected with curtain cloth in the stay wire type electric side window roller shutter with a stay wire of an electric driving mechanism, the rocker arm transmission mechanism comprises a pulley, the pulley can move in a transverse guide rail, and two roller groups are arranged on the pulley at intervals; the rocker arm extends into and is pivoted between the two roller groups of the pulley and can swing, the rocker arm extends to the tail end of the rocker arm below the pulley and can movably contact with the transverse guide rail, so that a good force loop is formed among the curtain cloth, the curtain cloth winder, the rocker arm, the pulley and the stay wire, and stable bearing force is provided in front of and behind the rocker arm through the pulley. Therefore, better balance can be obtained between the acting force applied to the curtain cloth by the electric driving mechanism through the stay wire, the rocker arm transmission mechanism and the rocker arm and the acting force applied to the curtain cloth by the curtain cloth winder, and the tension acting on the curtain cloth is kept in a good stable force state.

Description

Technical Field

[0001] The invention relates to the field of an electric side window roller blind for providing a sunshade function for a side window of a motor vehicle, in particular to a rocker arm transmission mechanism of a pull-wire type electric side window roller blind. Background Art

[0002] The side window roller blinds are products used on the rear side windows of motor vehicles to provide sunlight shielding functions. Generally speaking, the rear side windows of motor vehicles are formed into a shape with unequal upper and lower widths to match the body shape of the motor vehicle. As for the electric side window roller blinds, in order to conform to the shape of the rear side windows, the curtains provided by the electric side window roller blinds must match the shape of the rear side windows with unequal upper and lower widths, and at the same time, the curtains of the electric side window roller blinds must be able to receive sufficient support force after being unfolded. Therefore, the composition structure of the existing electric side window roller blinds mainly utilizes the motor of an electric drive mechanism to drive the flexible strip rocker arm to move back and forth along the guide rail, or utilizes the motor of an electric drive mechanism to drive the rack belt rocker arm through a gear set to move back and forth along the guide rail, and then drives the curtain connected to the curtain retractor to unfold and close through the rocker arm.

[0003] In the aforementioned existing electric side window rolling curtain, the upper round rod and the lower round rod at the lower end of the rocker arm move respectively along the upper rail groove and the lower rail groove of the guide rail, and the lower rail groove at the lower position is inclined relative to the upper rail groove at the upper position, so that the driven rocker arm can swing and tilt backward, and then the unfolded curtain can completely cover the rear side windows of unequal widths above and below; when the driven rocker arm drives the curtain to retract, the curtain can be retracted by the curtain retractor.

[0004] In the composition structure of the aforementioned existing electric side window roller blinds, the rocker arm slides by contacting the upper rail groove and the lower rail groove of the guide rail at a single point with the upper round rod and the lower round rod arranged at intervals in the upper and lower ends of the rocker arm, making it difficult for the electric drive mechanism to provide a stable driving force to the rocker arm in the process of driving the rocker arm to move along the guide rail. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a rocker arm transmission mechanism for a pull-wire electric side window roller blind, which solves the technical problem that in the process of driving the curtain to unfold and fold, the electric driving mechanism of the existing electric side window roller blind is difficult to provide a stable driving force to the rocker arm in the process of driving the rocker arm to move along the guide rail.

[0006] The technical solution proposed by the present invention is: to provide a rocker arm transmission mechanism of a pull-wire electric side window roller curtain, which can be installed in a pull-wire electric side window roller curtain, the pull-wire electric side window roller curtain comprises a curtain cloth that can be rolled up and released by a curtain cloth retractor, a transverse guide rail, a rocker arm and an electric drive mechanism, the transverse guide rail is arranged transversely, the upper end of the rocker arm is pivotally connected to a movable edge of the curtain cloth, the lower end of the rocker arm extends into the transverse guide rail, the electric drive mechanism can drive the rocker arm to move along a motion path of the transverse guide rail through a pull wire, and drive the curtain cloth to unfold and retract; wherein:

[0007] The rocker transmission mechanism is connected between the rocker and the pull wire, and includes a pulley, which is installed in the transverse guide rail and can move along the transverse guide rail. The rocker has a connecting end that extends into the transverse guide rail. The connecting end is pivotally mounted on the pulley so that the rocker can swing on the pulley, and the connecting end has a rocker end located below the pulley. The pulley is provided with two roller groups spaced apart along the length direction of the transverse guide rail, and the connecting end is located between the two roller groups. The rocker end can movably contact the transverse guide rail.

[0008] In the rocker arm transmission mechanism of the pull-wire type electric side window roller blind as described above, the transverse guide rail has an upper rail groove and a lower rail groove which are arranged vertically and connected to each other, the pulley is installed in the upper rail groove, the pulley includes a pulley body, the two roller groups are respectively installed at the two ends of the pulley body along the direction of the action path, the two roller groups can rollably contact the bottom surface of the upper rail groove of the transverse guide rail, and the two ends of the pull wire are respectively connected to the two ends of the pulley body along the direction of the action path.

[0009] In the rocker arm transmission mechanism of the pull-wire type electric side window roller blind as described above, the pulley body is provided with a movable groove which passes through from top to bottom between the two roller groups, the connecting end of the rocker arm can be movably inserted into the movable groove, and the pulley body and the connecting end are connected by a pivot.

[0010] In the rocker arm transmission mechanism of the pull-wire type electric side window roller blind as described above, the pulley body is provided with a movable groove which passes through from top to bottom between the two roller groups, the connecting end of the rocker arm can be movably inserted into the movable groove, and the pulley body and the connecting end are connected by a pivot.

[0011] In the rocker arm transmission mechanism of the pull-wire electric side window roller blind as described above, the end of the rocker arm has an end wheel set, and the end of the rocker arm can rollably contact the bottom surface of the lower rail groove of the transverse guide rail through the end wheel set.

[0012] In the rocker arm transmission mechanism of the pull-wire electric side window roller blind as described above, the two roller groups each have two rollers, and the two rollers of each roller group are located on both sides of the action path relative to the pulley body; the end wheel group has two end rollers, and the two end rollers are respectively located on both sides of the end of the rocker arm relative to the action path.

[0013] In the rocker arm transmission mechanism of the pull-wire electric side window roller blind as described above, the rocker arm has a center of gravity and a vertical line passing through the center of gravity, the connecting end is located below the center of gravity, and the position where the end of the rocker arm contacts the transverse guide rail is biased towards the side of the vertical line of the center of gravity facing the curtain retractor.

[0014] When the rocker arm transmission mechanism of the pull-wire electric side window roller blind of the present invention is applied to the pull-wire electric side window roller blind, the beneficial effects that can be achieved are:

[0015] 1. Construct a good power circuit: The pulley of the rocker transmission mechanism is installed in the transverse guide rail and can move laterally along the action path of the transverse guide rail. The lower end of the rocker connected to the movable edge of the curtain extends into the transverse guide rail and is pivoted on the pulley and can swing. The pulley is connected to the pull wire of the electric drive mechanism, so that a good power circuit is formed between the curtain, the curtain retractor, the rocker, the pulley and the pull wire.

[0016] 2. Keep the curtain in a good and stable tension state: During the process of unfolding and folding the curtain, the electric drive mechanism drives the pulley connected to the rocker arm to move along the transverse guide rail through the pull wire, and the pulley is located in the front and rear roller groups in the direction of the rocker arm's action path to roll and contact the transverse slide rail, so that the pulley provides a stable bearing force for the rocker arm that can swing back and forth at the front and rear positions of the action path, thereby achieving a better balance between the force applied to the curtain by the electric drive mechanism through the pull wire, the rocker arm transmission mechanism and the rocker arm, and the force applied to the curtain by the curtain retractor, so that the tension acting on the curtain is maintained in a good and stable force state. In this way, the electric drive mechanism can smoothly drive the rocker arm to perform the unfolding and folding of the curtain through the pull wire and the pulley of the rocker arm transmission mechanism.

[0017] The rocker arm transmission mechanism of the pull-wire type electric side window roller blind of the present invention can also be installed in the upper rail groove using the pulley when the transverse guide rail has an upper rail groove and a lower rail groove arranged vertically and connected to each other. The two roller groups of the pulley are respectively installed at the two ends of the pulley body along the direction of the action path. The two roller groups can rollably contact the bottom surface of the groove of the upper rail groove of the transverse guide rail. The two ends of the pull wire are respectively connected to the two ends of the pulley body along the direction of the action path, so that the electric drive mechanism can pull the pulley in both directions to move smoothly through the pull wire.

[0018] The rocker arm transmission mechanism of the pull-wire electric side window roller blind of the present invention can further utilize the pulley body to set a movable groove that passes through the two roller groups from top to bottom. The connecting end of the rocker arm can be movably inserted into the movable groove, and the pulley body and the connecting end are connected by a pivot. The swing range of the rocker arm is limited by the movable groove. At the same time, the movable groove of the pulley body is located at the position of the rocker arm on both sides relative to the action path direction, thereby reducing the shaking of the rocker arm due to external force.

[0019] The rocker arm transmission mechanism of the pull-wire electric side window roller blind of the present invention can further utilize a terminal wheel set at the end of the rocker arm, through which the end of the rocker arm can rollably contact the bottom surface of the groove of the lower rail groove of the transverse guide rail, thereby reducing the friction resistance between the rocker arm and the transverse guide rail. In addition, the two roller sets can each have two rollers, and the two rollers of each roller set are located on both sides of the action path relative to the pulley body; the terminal wheel set has two terminal rollers, and the two terminal rollers are respectively located on both sides of the rocker arm end relative to the action path, so as to improve the stability of the pulley and the rocker arm end of the rocker arm connected to the pulley moving in the transverse guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a three-dimensional schematic diagram of an embodiment of a rocker arm transmission mechanism installed in a pull-wire electric side window roller blind with the blind cloth in an unfolded state.

[0021] Figure 2 yes Figure 1 The embodiment of the rocker arm transmission mechanism shown is arranged in a pull-wire electric side window roller blind, and is a side plan view schematic diagram of the blind in the unfolded state.

[0022] Figure 3 yes Figure 1 and Figure 2 A partial three-dimensional schematic diagram of a curtain retractor connected to the curtain, a transverse guide rail and an electric drive mechanism in a pull-wire type electric side window roller blind provided with a rocker arm transmission mechanism is shown.

[0023] Figure 4 yes Figure 1 and Figure 2 A partial three-dimensional schematic diagram of a curtain retractor connected to the curtain, an electric drive mechanism and a transverse guide rail in a pull-wire type electric side window roller blind provided with a rocker arm transmission mechanism is shown.

[0024] Figure 5 yes Figure 1 and Figure 2 The illustrated embodiment of the pull-wire electric side window roller blind is a partial stereoscopic schematic diagram of a rocker arm combined with a rocker arm transmission mechanism arranged in a transverse guide rail, and a pull-wire guide arranged outside the transverse guide rail.

[0025] Figure 6 yes Figure 1 and Figure 2 The illustrated embodiment of the pull-wire electric side window roller blind is a partial side plan view of a rocker arm combined with a rocker arm transmission mechanism disposed in a transverse guide rail, and a pull-wire guide disposed outside the transverse guide rail.

[0026] Figure 7 yes Figure 1 and Figure 2 The illustrated embodiment of the pull-wire type electric side window roller blind is a side plan view of the blind in a folded state.

[0027] Description of reference numerals:

[0028] 10: Curtain retractor

[0029] 11: External pipe

[0030] 12: Inner tube

[0031] 13: Tension torsion spring

[0032] 20: Curtain fabric

[0033] 21: Active edge

[0034] 30: Horizontal guide rail

[0035] 300: Motion Path

[0036] 31: Upper rail groove

[0037] 32: Lower rail groove

[0038] 40: Rocker arm

[0039] 41: Connection end

[0040] 411: Pivot

[0041] L: Center vertical line

[0042] 42: Rocker arm end

[0043] 43: End wheel set

[0044] 50: Rocker arm transmission mechanism

[0045] 51: Pulley

[0046] 511: Pulley body

[0047] 5111: Activity slot

[0048] 512: Roller set

[0049] 52: Wire guide

[0050] 60: Electric drive mechanism

[0051] 61: Electric motor

[0052] 62: Cable drive wheel

[0053] 63: Pull the wire. DETAILED DESCRIPTION

[0054] The following is a further description of the technical means adopted by the present invention to achieve the predetermined purpose of the invention with reference to the accompanying drawings and embodiments of the present invention.

[0055] like Figure 1 and Figure 2 As shown, it discloses an embodiment of the rocker arm transmission mechanism 50 of the pull-wire electric side window roller blind of the present invention installed in a pull-wire electric side window roller blind, such as Figures 1 to 4 As shown, the pull-wire electric side window roller blind can be installed at the rear side window of a motor vehicle. The pull-wire electric side window roller blind includes a curtain retractor 10, a curtain 20, a transverse guide rail 30, a rocker arm 40 and an electric drive mechanism 60. The curtain 20 is connected to the curtain retractor 10. The curtain retractor 10 includes an outer tube 11, an inner tube 12 provided in the outer tube 11 and having a tension torsion spring 13. One side of the outer tube 11 has a curtain groove. The curtain 20 passes through the curtain groove of the outer tube 11 and extends into the outer tube 11 and is connected to the inner tube 12. The inner tube 12 can retract and release the curtain 20 through the torsional elastic force provided by the tension torsion spring 13. The curtain 20 extends out of the curtain One side of the curtain retractor 10 has a movable edge 21, the transverse guide rail 30 can be arranged transversely along the front and rear direction of the side window of the motor vehicle, the curtain retractor 10 is arranged on the front side of the side window of the motor vehicle and is located in front of the transverse guide rail 30, the upper end of the rocker arm 40 is pivotally connected to the movable edge 21 of the curtain 20, the lower end of the rocker arm 40 extends into the transverse guide rail 30 and can move along a motion path 300, and the electric drive mechanism 60 includes a motor 61, a wire drive wheel 62 that can be driven to rotate by the motor 61, and a wire 63, the wire 63 is wound around the wire drive wheel 62. In the embodiment disclosed in the drawings, the electric drive mechanism 60 is arranged in the motor vehicle and is located below the front side of the rear side window, and the motor 61 can be connected to the power supply in the motor vehicle and can be controlled to start and stop.

[0056] like Figure 1 , Figure 2 As shown, the rocker transmission mechanism 50 of the present invention is connected between the rocker 40 and the pull wire 63, so that the electric drive mechanism 60 can drive the rocker 40 to move along the action path 300 of the transverse guide rail 30 through the pull wire 63 and the rocker transmission mechanism 50, and drive the curtain 20 to unfold and fold, and form a good power circuit between the curtain 20, the curtain retractor 10, the rocker 40, the pulley 51 and the pull wire 63.

[0057] like Figure 1 , Figure 2 and Figure 5 to Figure 6 As shown, the rocker transmission mechanism 50 of the present invention includes a pulley 51, which is installed in the transverse guide rail 30 and can move along the transverse guide rail 30. The rocker arm 40 has a connecting end 41 extending into the transverse guide rail 30. The connecting end 41 is pivoted on the pulley 51 so that the rocker arm 40 can swing on the pulley 51, and the connecting end 41 has a rocker arm end 42 located below the pulley 51. The pulley 51 is provided with two roller groups 512 at intervals along the length direction of the transverse guide rail 30. The connecting end 41 is located between the two roller groups 512, and the rocker arm end 42 can movably contact the transverse guide rail 30.

[0058] like Figure 6 As shown, the rocker arm 40 has a center vertical line L passing through the center of the pivot 411, and the position where the rocker arm end 42 contacts the transverse guide rail 30 is located on the side of the center vertical line L facing the curtain retractor 10. When the curtain retractor 10 applies a pulling force to the curtain 20, the rocker arm 40 can be prevented from being excessively biased toward the direction of the curtain retractor 10, so that the curtain 20 can be maintained in a balanced tension state.

[0059] like Figure 5 and Figure 6 As shown, the transverse guide rail 30 has an upper rail groove 31 and a lower rail groove 32, and the upper rail groove 31 and the lower rail groove 32 are arranged up and down and connected. The pulley 51 is installed in the upper rail groove 31, and the pulley 51 includes a pulley body 511. The two roller groups 512 are respectively installed at the two ends of the pulley body 511 along the direction of the action path 300. The two roller groups 512 can roll and contact the bottom surface of the upper rail groove 31 of the transverse guide rail 30. The pulley body 511 is connected to the pull wire 63. Figure 5 and Figure 6 In the illustrated embodiment, the two ends of the pull wire 63 are respectively connected to the two ends of the movement path 300 of the pulley body 511, so that the electric drive mechanism 60 drives the two ends of the pull wire 63 to pull and release to drive the pulley 51 to move back and forth smoothly along the transverse guide rail 30.

[0060] In addition, if Figure 1 , Figure 2 and Figure 5 to Figure 6 As shown, a wire guide 52 may be further provided on the outer side of one end of the transverse guide rail 30 away from the curtain retractor 10, so that the wire 63 can bypass the wire guide 52 and then extend into the transverse guide rail 30 to connect to the pulley body 511. With the assistance of the wire guide 52, the wire 63 maintains appropriate tension.

[0061] like Figure 5 to Figure 6As shown, the pulley body 511 is provided with a movable groove 5111 which is through-through between the two roller groups 512, and the connecting end 41 of the rocker arm 40 can be movably inserted into the movable groove 5111, and a pivot 411 is inserted to connect the pulley body 511 and the connecting end 41. The rocker arm end 42 of the rocker arm 40 extends into the lower rail groove 32 of the transverse guide rail 30, and the rocker arm end 42 has an end wheel group 43, and the rocker arm end 42 can rollably contact the groove bottom surface of the lower rail groove 32 of the transverse guide rail 30 through the end wheel group 43, thereby reducing the friction resistance between the rocker arm end 42 and the transverse guide rail 30.

[0062] like Figure 5 to Figure 6 In the illustrated embodiment, the two roller groups 512 mounted at both ends of the pulley body 511 each have two rollers, and the two rollers of each roller group 512 are located on both sides of the motion path 300 of the pulley body 511. The end wheel group 43 has two end rollers, and the two end rollers are respectively located on both sides of the rocker arm end 42 relative to the motion path 300, so as to improve the stability of the pulley 51 and the rocker arm end 42 of the rocker arm 40 connected to the pulley 51 moving in the transverse guide rail 30.

[0063] When the rocker arm transmission mechanism 50 of the pull-wire electric side window roller blind of the present invention is applied to the pull-wire electric side window roller blind installed on the rear side window of a motor vehicle, Figure 1 , Figure 2 and Figure 7 As shown, the curtain 20 can be rolled up by the curtain retractor 10, the rocker arm 40 connected to the movable edge 21 of the curtain 20 and the pulley 51 connected to the lower end of the rocker arm 40 are adjacent to the curtain retractor 10, and the curtain 20 is in a folded state.

[0064] When the curtain 20 changes from the folded state to the unfolded state, the motor 61 of the electric drive mechanism 60 is started to drive the cable drive wheel 62 to rotate forward, and the cable drive wheel 62 exerts a pulling and releasing effect on the two ends of the cable 63, so that the cable 63 exerts a pulling force on the pulley 51 toward the rear of the rear side window, and then drives the rocker arm 40 to move backward along the transverse guide rail 30 through the pulley 51, and at the same time, the curtain 20 is pulled and unfolded by the rocker arm 40 and then stops. In the process of the curtain 20 being pulled and unfolded, the rocker arm 40 pivoted on the pulley 51 can swing to an inclined position within a limited range, so that the rocker arm 40 has enough tension to pull the curtain 20 to fully unfold and cover the rear side window. Among them, Figure 2 and Figure 6 As shown, the rocker arm end 42 of the rocker arm 40 abuts against the bottom surface of the lower rail groove 32 of the transverse guide rail 30, and the position where the rocker arm end 42 contacts the transverse guide rail 30 is located on the side of the center vertical line L facing the curtain retractor 10. Therefore, when the curtain retractor 10 applies tension to the curtain 20, the curtain 20 can maintain a balanced tension state.

[0065] like Figure 2 and Figure 7 As shown, when the curtain 20 changes from the unfolded state to the folded state, the motor 61 of the electric drive mechanism 60 is started to drive the cable driving wheel 62 to rotate in the opposite direction, and the cable driving wheel 62 produces a release and a pull effect on the two ends of the cable 63, so that the cable 63 exerts a pulling force on the pulley 51 toward the front of the rear side window, and then drives the rocker arm 40 to move forward along the transverse guide rail 30 through the pulley 51, and the curtain 20 is automatically rolled up by the curtain retractor 10, so that the curtain 20 is rolled up into the curtain retractor 10. In the process of the curtain 20 being pulled and folded, the rocker arm 40 pivoted on the pulley 51 can swing within a limited range to a side position close to the curtain retractor 10.

[0066] The above description is only an embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as above by the embodiment, it is not used to limit the present invention. Any technician in the field can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A rocker arm transmission mechanism of a pull-wire electric side window roller curtain, which can be installed in a pull-wire electric side window roller curtain, the pull-wire electric side window roller curtain comprises a curtain cloth that can be rolled up and released by a curtain cloth retractor, a transverse guide rail, a rocker arm and an electric drive mechanism, the transverse guide rail is arranged transversely, the upper end of the rocker arm is pivotally connected to a movable edge of the curtain cloth, the lower end of the rocker arm extends into the transverse guide rail, the electric drive mechanism can drive the rocker arm to move along a motion path of the transverse guide rail through a pull wire, and drive the curtain cloth to unfold and retract; characterized in that, The rocker transmission mechanism is connected between the rocker and the pull wire and includes a pulley, which is installed in the transverse guide rail and can move along the transverse guide rail. The rocker has a connecting end extending into the transverse guide rail. The connecting end is pivotally mounted on the pulley so that the rocker can swing on the pulley, and the connecting end has a rocker end located below the pulley. The pulley has two roller groups spaced apart along the length direction of the transverse guide rail, and the connecting end is located between the two roller groups. The rocker end can movably contact the transverse guide rail.

2. The rocker arm transmission mechanism of the pull-wire electric side window roller blind according to claim 1, characterized in that: The transverse guide rail has an upper rail groove and a lower rail groove which are arranged vertically and connected to each other. The pulley is installed in the upper rail groove. The pulley includes a pulley body. The two roller groups are respectively installed at the two ends of the pulley body along the direction of the action path. The two roller groups can rollably contact the bottom surface of the upper rail groove of the transverse guide rail. The two ends of the pull wire are respectively connected to the two ends of the pulley body along the direction of the action path.

3. The rocker arm transmission mechanism of the pull-wire electric side window roller blind according to claim 2, characterized in that: The pulley body is provided with a movable groove which is through-through up and down between the two roller groups. The connecting end of the rocker arm can be movably inserted into the movable groove, and a pivot is inserted to connect the pulley body and the connecting end.

4. The rocker arm transmission mechanism of the pull-wire electric side window roller blind according to claim 3, characterized in that: The end of the rocker arm is provided with an end wheel set, through which the end of the rocker arm can rollably contact the bottom surface of the lower rail groove of the transverse guide rail.

5. The rocker arm transmission mechanism of the pull-wire electric side window roller blind according to claim 4, characterized in that: The two roller groups each have two rollers, and the two rollers of each roller group are located on both sides of the action path opposite to the pulley body; the end wheel group has two end rollers, and the two end rollers are respectively located on both sides of the end of the rocker arm relative to the action path.

6. The rocker arm transmission mechanism of the pull-wire electric side window roller blind according to any one of claims 1 to 5, characterized in that: The rocker arm has a center of gravity and a vertical line passing through the center of gravity. The connecting end is located below the center of gravity. The position where the end of the rocker arm contacts the transverse guide rail is located on the side of the vertical line facing the curtain retractor.

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