CN115891918A - Windscreen wiper framework and windscreen wiper - Google Patents

Abstract

The invention provides a wiper framework and a wiper, and relates to the technical field of automobiles, wherein the wiper framework comprises an outer framework shell, an inner framework connecting piece and a fastening piece; one side of the outer framework shell is provided with a first opening extending along the length direction of the outer framework shell; the inner framework is movably connected with the inner side wall of the outer framework shell through a connecting piece and is provided with a first degree of freedom relative to the outer framework shell, the first degree of freedom is movement along a first set direction, and the first set direction is a direction perpendicular to a plane where the first opening is located; the inner framework is used for mounting a wiper rubber strip, and at least part of the wiper rubber strip extends out of the first opening; the fastener sets up in the exoskeleton shell, and the fastener is used for moving in order to fix the relative exoskeleton shell of endoskeleton relatively exoskeleton shell. The interference amount of the windscreen wiper rubber strip assembled on the windscreen wiper framework and the windscreen can be adjusted, so that the interference amount is in a reasonable range, the sufficient wiping force is ensured, and the abnormal sound is avoided.

Description

Windscreen wiper framework and windscreen wiper

Technical Field

The invention relates to the technical field of vehicles, in particular to a wiper framework and a wiper.

Background

The windscreen wiper is one of important parts on an automobile, dirt on the windshield of the automobile can be removed, a clear driving vision is provided for a driver, the driving safety of the driver is guaranteed, and more people recognize the importance of the windscreen wiper along with the improvement of the cognitive level of the safety of the vehicle of a consumer.

If the interference amount is too large, abnormal sound can be generated when the wiper rubber strip moves, the movement is difficult, and if the interference amount is too small (namely, the fitting property of the wiper rubber strip and the windshield glass is low), the scraping force of the wiper rubber strip is possibly insufficient.

Due to the production process deviation, material properties and other reasons, the interference amount between the wiper rubber strip and the windshield glass which are actually produced and assembled may not be in a reasonable range, and finally the cleaning effect is poor or abnormal sound is generated during working.

Disclosure of Invention

The invention aims to solve the technical problem that the good working performance of the traditional wiper framework is difficult to ensure after the traditional wiper framework is produced and assembled.

The invention provides a wiper framework, which comprises an outer framework shell, an inner framework, a connecting piece and a fastening piece, wherein the outer framework shell is provided with a plurality of connecting holes;

one side of the outer framework shell is provided with a first opening extending along the length direction of the outer framework shell;

the inner framework is movably connected with the inner side wall of the outer framework shell through the connecting piece, so that the inner framework has at least one degree of freedom relative to the outer framework shell, the at least one degree of freedom is movement along a first set direction, and the first set direction is a direction perpendicular to a plane where the first opening is located;

the inner framework is used for mounting a wiper rubber strip, and at least part of the wiper rubber strip extends out of the first opening;

the fastener set up in the exoskeleton casing, just the fastener is used for relatively the exoskeleton casing removes in order to with the inner frame is relative the exoskeleton casing is fixed.

Compared with the prior art, the wiper framework provided by the invention has the following beneficial effects that:

after windscreen wiper adhesive tape, outer skeleton casing and inner frame production shaping, can assemble the assembly of having accomplished the windscreen wiper skeleton in the outer skeleton through the connecting piece with the inner frame, later the windscreen wiper adhesive tape is connected on the inner frame of windscreen wiper skeleton, for example windscreen wiper adhesive tape part (the part that the windscreen wiper adhesive tape kept away from the windscreen wiper binding face) inlays in the inner frame, and the windscreen wiper binding face of windscreen wiper adhesive tape stretches out outside first uncovered. After the assembly of the wiper framework and the wiper rubber strip is completed, the inner framework is connected with the outer framework shell through the connecting piece, the inner framework has a first degree of freedom moving along a first set direction, then an adjusting force can be given to the inner framework through the outside, the adjusting force enables the inner framework to move along the first set direction, the amount of the wiper rubber strip installed on the inner framework extending out of the outer framework shell is adjusted, the inner framework is fixed relative to the outer framework shell through the fastening piece after the adjustment is completed, after the wiper with the wiper framework is loaded, the interference amount of the wiper rubber strip on the inner framework and the windshield glass is equivalently adjusted, the interference amount is enabled to be in a reasonable range, the enough scraping force is ensured, the abnormal sound is avoided, the good working performance is ensured, meanwhile, the adjustability of the wiper rubber strip installed on the wiper framework is increased, and the universality of the wiper with the wiper framework for different vehicle types is improved.

Furthermore, the inner frame comprises a plurality of inner frame units, the inner frame units are sequentially arranged along the length direction of the outer frame shell, and the wiper rubber strip is simultaneously connected with the inner frame units;

the plurality of inner framework units are respectively movably connected with the inner wall of the outer framework shell through the connecting pieces, so that the inner framework units have a first degree of freedom and a second degree of freedom relative to the outer framework shell, the second degree of freedom is rotation around a second set direction, the second set direction is perpendicular to the first set direction, and the second set direction is perpendicular to the length direction of the outer framework shell;

each inner framework unit is used for being fixed through the corresponding fastener.

Furthermore, the adjacent inner framework units are arranged at intervals, and the sum of the lengths of the plurality of inner framework units is smaller than the length of the outer framework shell.

Further, the connecting piece is a spring, one end of the spring is connected with the inner side wall of the outer framework shell, and the other end of the spring is connected with the inner framework.

Furthermore, the inside wall of outer skeleton casing is provided with first draw-in groove, the inner frame is provided with the second draw-in groove, the both ends of spring are used for respectively the card to go into the second draw-in groove with first draw-in groove.

Further, the fastener is a bolt which is in threaded connection with the outer framework shell.

Further, the fastener is arranged on the outer framework shell and close to the first opening.

Furthermore, the outer framework shell comprises a bottom plate and two opposite side plates, one ends of the two side plates are respectively connected with the bottom plate, a first opening is formed between the other ends of the two side plates, and the first set direction is consistent with the direction from one end of each side plate to the other end of each side plate;

the two side plates are respectively provided with the fastening piece, and the two opposite sides of the inner framework are respectively used for being movably connected with the two side plates through the connecting piece.

Furthermore, an operation hole is formed in one side, opposite to the first opening, of the outer framework shell.

The invention also provides a windscreen wiper which comprises a windscreen wiper rubber strip and the windscreen wiper framework, wherein the windscreen wiper rubber strip is arranged on the inner framework of the windscreen wiper framework.

The technical improvement and the beneficial effect of the windscreen wiper are the same as those of the windscreen wiper framework, so that the windscreen wiper is not described in more detail.

Drawings

Fig. 1 is a side view of a wiper frame of an embodiment of the present invention fitted with a wiper strip;

FIG. 2 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 1, wherein S2 isbase:Sub>A first setting direction and S2 isbase:Sub>A second setting direction;

fig. 3 is a schematic cross-sectional view of the wiper frame of fig. 3 in a direction S2 without a wiper rubber;

fig. 4 is a schematic view of the wiper strip of the wiper frame of the embodiment of the present invention before adjustment cooperating with the auxiliary pressing mechanism;

fig. 5 is a schematic view showing that the radian of the wiper rubber strip on the wiper framework is consistent with that of the profiling tool after adjustment.

Description of reference numerals:

1. an exoskeleton housing; 11. a side plate; 12. a base plate; 121. an operation hole; 13. a first opening; 2. an inner skeleton; 21. an inner skeleton unit; 3. a wiper rubber strip; 4. a connecting member; 5. a fastener; 6. an auxiliary pressing mechanism; 7. and (5) profiling tooling.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, in the description of the present invention, terms such as "upper", "lower", "front", "rear", and the like in the embodiments indicate orientation words, and are only used for simplifying the positional relationship based on the drawings of the specification, and do not represent that the components, devices, and the like which are referred to must operate according to the specific orientation and the limited operation, method, and structure in the specification, and such orientation terms do not constitute a limitation of the present invention.

A coordinate system XYZ is provided herein, wherein a forward direction of the X-axis represents front, a backward direction of the X-axis represents back, a forward direction of the Y-axis represents left, a backward direction of the Y-axis represents right, a forward direction of the Z-axis represents up, and a backward direction of the Z-axis represents down.

Referring to fig. 1-2, a wiper frame according to an embodiment of the present invention includes an outer frame housing 1, an inner frame 2, a connector 4, and a fastener 5;

a first opening 13 extending along the length direction (up-down direction as shown in the figure) of the outer framework shell 1 is arranged on one side (front side as shown in the figure) of the outer framework shell 1;

the inner frame 2 is used for being movably connected with the inner side wall of the outer frame shell 1 through the connecting piece 4, so that the inner frame 2 has a first degree of freedom relative to the outer frame shell 1, the first degree of freedom is movement along a first set direction (a front-back direction as shown in the figure), and the first set direction is a direction perpendicular to a plane where the first opening 13 is located;

the inner framework 2 is used for mounting a wiper rubber strip 3, and at least part of the wiper rubber strip 3 extends out of the first opening 13;

fastener 5 set up in exoskeleton housing 1, just fastener 5 is used for relatively exoskeleton housing 1 removes in order to with inner frame 2 is relative exoskeleton housing 1 is fixed.

In this embodiment, windscreen wiper adhesive tape 3, outer skeleton casing 1 and 2 production shaping backs of inner frame, can assemble inner frame 2 in the outer frame through connecting piece 4 in order to accomplish the assembly of windscreen wiper skeleton, later windscreen wiper adhesive tape 3 connects on the inner frame 2 of windscreen wiper skeleton, for example 3 parts of windscreen wiper adhesive tape (the part that windscreen wiper adhesive tape 3 kept away from the windscreen wiper binding face) inlay in inner frame 2, and the windscreen wiper binding face of windscreen wiper adhesive tape 3 stretches out outside first uncovered 13.

After the assembly of the windscreen wiper framework and the windscreen wiper rubber strips 3 is completed, because the inner framework 2 is connected with the outer framework shell 1 through the connecting piece 4, the inner framework 2 has a first degree of freedom moving along a first set direction, then an adjusting force can be given to the inner framework 2 through the outside, the adjusting force enables the inner framework 2 to move along the first set direction, and further the interference amount of the windscreen wiper rubber strips 3 installed on the inner framework 2 extending out of the outer framework shell 1 is adjusted, after the adjustment is completed, the inner framework 2 is fixed relative to the outer framework shell 1 through the fastening piece 5.

It can be understood that, a windscreen wiper with this windscreen wiper skeleton, this windscreen wiper skeleton's outer skeleton casing 1 installs on the windscreen wiper arm promptly, and this windscreen wiper arm sets up on the automobile body, because the adjustability of windscreen wiper adhesive tape 3 in this windscreen wiper skeleton, even the windscreen wiper arm is still traditional structure, does not hinder the regulation of windscreen wiper adhesive tape 3 and windscreen interference volume yet.

The adjustment of the wiper rubber 3 may be performed before the wiper frame is attached to the wiper arm or after the wiper frame is attached to the wiper arm.

Referring to fig. 3, optionally, the inner frame 2 includes a plurality of inner frame units 21, the plurality of inner frame units 21 are sequentially arranged along the length direction of the outer frame housing 1, and the wiper rubber strip 3 is simultaneously connected to the plurality of inner frame units 21;

the inner frame units 21 are movably connected with the inner wall of the outer frame shell 1 through the connecting pieces 4, so that the inner frame units 21 have a first degree of freedom and a second degree of freedom relative to the outer frame shell 1, the second degree of freedom is rotation around a second set direction (left and right direction as shown in the figure), the second set direction is perpendicular to the first set direction, and the second set direction is perpendicular to the length direction of the outer frame shell 1;

each of the inner frame units 21 is configured to be fixed by the corresponding fastener 5.

In this embodiment, each inner frame unit 21 may be mounted within the outer frame housing 1 by a connector 4, and the connector 4 herein provides at least a second degree of freedom in addition to the first degree of freedom described above for the inner frame unit 21, the second degree of freedom being rotation about a second set direction. So, can guarantee that every independent relative outer skeleton casing 1 of inner frame unit 21 sets for the direction around the second and rotates, through adjusting the contained angle between the adjacent inner frame unit 21, finally can realize windscreen wiper adhesive tape 3 and windshield's radian matching, and then when the windscreen wiper of guaranteeing to have this windscreen wiper skeleton is applied to different motorcycle types (different motorcycle types specifically refer to the windshield that has different radians), can both guarantee that the windscreen wiper adhesive tape 3 that a plurality of inner frame units 21 after the angular adjustment installed jointly is unanimous with the radian of the windshield that corresponds, further improve the commonality.

After the displacement of the inner frame unit 21 in the first setting direction and the rotation angle around the second setting direction are adjusted, the corresponding inner frame unit 21 is fixed relative to the outer frame shell 1 by the fastener 5.

Referring to fig. 3, alternatively, the adjacent inner frame units 21 are arranged at intervals, and the sum of the lengths of the inner frame units 21 is smaller than the length of the outer frame shell 1.

In this embodiment, between two adjacent inner frame units 21, because the interval sets up, for the contained angle between two adjacent inner frame units 21 changes and provides the space, guarantees simultaneously that two inner frame units 21 at both ends can not surpass outer skeleton casing 1 length direction's both ends.

Referring to fig. 2, optionally, the connecting member 4 is a spring, one end of the spring is connected to the inner side wall of the outer frame casing 1, and the other end of the spring is connected to the inner frame 2.

In this embodiment, the connecting member 4 is a spring, and the spring has a capability of torsional deformation in each direction, so that the inner frame unit 21 can be ensured to have at least the first degree of freedom and the second degree of freedom, and the connecting member is simple in structure and low in cost.

Optionally, the inside wall of the outer frame shell 1 is provided with a first clamping groove, the inner frame 2 is provided with a second clamping groove, and the two ends of the spring are respectively clamped into the second clamping groove and the first clamping groove.

In this embodiment, before inner frame unit 21 and the assembly of outer frame casing 1, can go into the second draw-in groove of inner frame unit 21 with the one end card of spring earlier, then pack inner frame unit 21 into outer frame casing 1 from first uncovered 13 department, along with packing into gradually of inner frame unit 21, the other end of spring then can be played in the first draw-in groove that corresponds on the 1 inner wall side of outer frame casing, and then accomplish the assembly of inner frame unit 21, inner frame unit 21's assembly back, because the both ends of spring are located first draw-in groove and second draw-in groove respectively, the spring also can not accidentally drop.

Referring to fig. 1-2, the fastener 5 is optionally a bolt that is threadedly attached to the exoskeleton housing 1.

In this embodiment, the outer frame casing 1 is provided with a plurality of screw holes along the length direction thereof, each bolt is connected with a bolt, and the inner frame unit 21 can be locked and fixed by the bolts at corresponding positions.

Referring to fig. 2, optionally, the fastening member 5 is disposed on the outer frame casing 1 near the first opening 13.

In this embodiment, since the bolt is disposed at a position close to the first opening 13, it is possible to ensure that the inner frame unit 21 has a maximum adjustment stroke moving in the first set direction.

Referring to fig. 2, optionally, the outer frame casing 1 is a strip-shaped C-shaped plate, that is, the outer frame casing 1 includes a bottom plate 12 and two opposite side plates 11, one end (one end in the width direction, as shown in the figure, the rear end) of each of the two side plates 11 is connected to the bottom plate 12, the other end (the other end in the width direction, as shown in the figure, the front end) of each of the two side plates 11 forms the first opening 13 therebetween, and the first set direction is the width direction of the side plate 11;

the two side plates 11 are respectively provided with the fastening pieces 5, and the two opposite sides of the inner framework 2 are respectively used for being movably connected with the two side plates 11 through the connecting pieces 4.

In this embodiment, two sides (two sides close to the two side plates 11) of the inner frame unit 21 are respectively provided with a spring and a bolt, so that the two sides of the inner frame unit 21 are balanced in stress, and the structure is stable.

Wherein, the spring sets up between curb plate 11 and inner frame unit 21, rather than setting up between bottom plate 12 and inner frame unit 21, so, behind first draw-in groove and the second draw-in groove of the card respectively in the both ends of spring, when the bolt does not lock inner frame unit 21, spring, outer frame casing 1 three also can not unexpected separation.

Referring to fig. 3, optionally, an operation hole 121 is disposed on a side of the outer frame casing 1 opposite to the first opening 13.

In this embodiment, an operation hole 121 is disposed on a side of the outer frame housing 1 opposite to the first opening 13, that is, the bottom plate 12, and each inner frame unit 21 corresponds to the operation hole 121, so that an external force can be applied to the inner frame unit 21 inside the outer frame housing 1 through an operation space provided by the operation hole 121, and then an amount of the wiper rubber strip 3 extending out of the first opening 13 is adjusted, and finally an interference amount between the wiper rubber strip 3 and the windshield glass is adjusted.

After the assembly of the wiper framework is completed, the adjustment of the wiper rubber strip 3 can be completed before the assembly with the wiper arm, for example, the adjustment can be performed by the following method:

firstly adjusting the bolts, then adhering the wiper rubber strips 3 arranged on the whole wiper framework to a profiling tool of windshield glass, as shown in fig. 4-5, applying force to each inner framework unit 21 by an external auxiliary pressing mechanism 6 through an operation space provided by an operation hole 121 so that each inner framework unit 21 jointly drives the wiper rubber strips 3 to be adhered to the profiling tool 7, adjusting the pressing force applied to the inner framework units 21 at corresponding positions by the auxiliary pressing mechanism 6 so that the interference amount of the wiper rubber strips 3 at the positions of each inner framework unit 21 reaches a reasonable range, and finally tightening the bolts;

as shown in fig. 4 to 5, the auxiliary pressing mechanism 6 includes a base plate and a plurality of auxiliary pressing units connected to the base plate, the plurality of auxiliary pressing units correspond to the plurality of inner frame units 21 one by one, the base plate may be an arc-shaped plate, the radian of the arc-shaped plate may be consistent with the radian of the profiling tool 7, and the axes of the plurality of auxiliary pressing units are respectively located on the radius of the circle where the base plate is located, so that the pressing forces provided by the auxiliary pressing units are respectively perpendicular to the tangent lines of the corresponding positions of the profiling tool 7, and further the plurality of pressing forces provided by the plurality of auxiliary pressing units can match the shapes of the plurality of inner frame units 21 with the profiling tool 7, thereby finally realizing the consistency between the arc shape of the wiper rubber strip 3 connected to the plurality of inner frame units 21 and the radian of the profiling tool 7; of course, for the adjustment of each inner frame unit 21, the adjustment can also be manually performed through the space provided by the operation hole 121, and the arc shape of the wiper rubber strip 3 can be consistent with the arc shape of the profiling tool 7 and can also reach the reasonable interference amount range.

It should be noted that the profiling fixture 7 is a profiling product of a windshield glass, and the outer skeleton casing 1 may be a linear strip structure as shown in fig. 1, 3 and 4, or a strip structure with a certain radian as shown in fig. 5, without affecting the adjustment of the included angle between adjacent inner skeleton units 21, so that the radian of the wiper rubber strip 3 is consistent with the radian of the profiling fixture 7.

The invention further provides a windscreen wiper which comprises a windscreen wiper rubber strip 3 and the windscreen wiper framework, wherein the windscreen wiper rubber strip 3 is arranged on the inner framework 2 of the windscreen wiper framework.

The technical improvement and the beneficial effect of the windscreen wiper are the same as those of the windscreen wiper framework, so that the windscreen wiper is not described in more detail.

The invention further provides a vehicle comprising the windscreen wiper.

Since the technical improvement and the beneficial effect of the vehicle are the same as those of the windscreen wiper, the vehicle is not described in more detail.

The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.

Claims (10)

1. A wiper framework is characterized by comprising an outer framework shell (1), an inner framework (2), a connecting piece (4) and a fastening piece (5);

a first opening (13) extending along the length direction of the outer framework shell (1) is formed in one side of the outer framework shell (1);

the inner framework (2) is movably connected with the inner side wall of the outer framework shell (1) through the connecting piece (4), so that the inner framework (2) has a first degree of freedom relative to the outer framework shell (1), the first degree of freedom is movement along a first set direction, and the first set direction is a direction perpendicular to the plane of the first opening (13);

the inner framework (2) is used for mounting a wiper rubber strip (3) and enabling at least part of the wiper rubber strip (3) to extend out of the first opening (13);

fastener (5) set up in exoskeleton casing (1), just fastener (5) are used for relatively exoskeleton casing (1) removes in order to with inner frame (2) is relative exoskeleton casing (1) is fixed.

2. The wiper frame according to claim 1, wherein the inner frame (2) comprises a plurality of inner frame units (21), the plurality of inner frame units (21) being arranged in sequence along the length direction of the outer frame housing (1), the plurality of inner frame units (21) being used for mounting the wiper strip (3) together;

the inner framework units (21) are movably connected with the inner wall of the outer framework shell (1) through the connecting pieces (4) respectively, so that the inner framework units (21) have a first degree of freedom and a second degree of freedom relative to the outer framework shell (1), the second degree of freedom is rotation around a second set direction, the second set direction is perpendicular to the first set direction, and the second set direction is perpendicular to the length direction of the outer framework shell (1);

each inner framework unit (21) is used for being fixed through the corresponding fastener (5).

3. The wiper frame according to claim 2, wherein adjacent inner frame units (21) are arranged at intervals, and the sum of the lengths of the inner frame units (21) is smaller than the length of the outer frame housing (1).

4. The wiper armature of claim 1, characterized in that the connecting piece (4) is a spring, one end of which is connected with the inner side wall of the outer armature housing (1) and the other end of which is connected with the inner armature (2).

5. The wiper skeleton of claim 4, characterized in that, the inside wall of the outer skeleton casing (1) is provided with a first clamping groove, the inner skeleton (2) is provided with a second clamping groove, and the two ends of the spring are used for respectively clamping into the second clamping groove and the first clamping groove.

6. Windscreen wiper skeleton according to claim 1, characterized in that the fastening element (5) is a bolt screwed onto the outer skeleton casing (1).

7. Windscreen wiper skeleton according to claim 1, characterized in that the fastening element (5) is arranged on the outer skeleton casing (1) close to the first opening (13).

8. The wiper frame according to claim 1, wherein the outer frame casing (1) comprises a bottom plate (12) and two opposite side plates (11), one ends of the two side plates (11) are respectively connected with the bottom plate (12), the other ends of the two side plates (11) form the first opening (13), and the first set direction is consistent with the direction from one end to the other end of the side plates (11); the two opposite sides of the inner framework (2) are respectively used for being movably connected with the two side plates (11) through the connecting pieces (4).

9. The wiper frame according to claim 1, wherein an operation hole (121) is provided on a side of the outer frame case (1) opposite to the first opening (13).

10. A wiper blade comprising a wiper strip (3) and a wiper frame according to any one of claims 1 to 9, said wiper strip (3) being mounted on an inner frame (2) of said wiper frame.

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