JP4436086B2 - Wiper blade - Google Patents

Description

  The present invention relates to a wiper blade, and more particularly to a wiper blade having a connecting member that easily holds a vertebra and a blade rubber.

  The wiper blade's vertebra and blade rubber are integrally fixed by a connecting member. 12 and 13 show an example of a conventional connecting member. As shown in the figure, the connecting member 100 is attached to a wiper blade main body 110 including vertebras 111A and 111B and a blade rubber 112. In FIG. 13, only a part of the wiper blade main body 110 in the longitudinal direction is cut out.

The connecting member 100 includes left and right clamping members 101A and 101B. Each clamping member 101A, 101B includes clamping parts 102A, 102B and pressing parts 103A, 103B, respectively, and holds the vertebras 111A, 111B from the side surfaces. Further, the holding members 101A and 101B are provided with bushing holes 104A and 104B and pin holes 105A and 105B, respectively. Then, the winding bush 106 is press-fitted from the bush hole 104B to the bush hole 104A, and the press-fit pin 107 is press-fitted from the pin hole 105B to the pin hole 105A. The clamping members 101A and 101B are fixed integrally with the wiper blade main body 110 held therebetween.
Japanese Patent Application No. 2002-114763

  As described above, in the conventional connecting member, the pair of sandwiching members 101A and 101B are arranged on both sides of the wiper blade main body 110 and sandwiched and held. Therefore, the pair of clamping members 101A and 101B needs to be firmly fixed so as not to be disengaged on both sides of the wiper blade main body 110. For this reason, it is necessary to perform fixing using members such as the winding bush 106 and the press-fit pin 107, which increases the number of parts and the number of assembly steps.

  The present invention has been made paying attention to such a problem, and in the wiper blade connecting member for connecting the wiper blade and the wiper arm, it is possible to easily perform a firm attachment. An object of the present invention is to provide a wiper blade having a connecting member that does not require any parts.

  In order to achieve the above object, a wiper blade according to the present invention includes a blade rubber for wiping a surface to be wiped, first and second plate members mounted on both sides of the blade rubber, and the first and second plates. A wiper blade comprising a plate member and a connecting member that integrally holds the blade rubber, wherein the connecting member includes a first protrusion having a first cut and a second protrusion having a second cut. The first plate member has a first notch to which the first protrusion is mounted, and the second plate member has a second notch to which the second protrusion is mounted. The connecting member has a notch, and the first notch is fitted to the edge of the first notch and the second notch is fitted to the edge of the second notch. Fixed to the first and second plate members. There.

  The first and second plate members constitute a mounting position for mounting the first and second protrusions on the first and second cutouts, and a wiper blade in a completed state, respectively. When the first and second plate members are in the mounting position, the first and second notches are respectively the first and second protrusions. The first and second protrusions are respectively mounted on the first and second cutouts, and then the first and second plate members are respectively moved from the mounting position to the regular position. By moving to the position, the edge portions of the first and second notches and the first and second protrusions may be fitted with each other.

The first and second cuts are oriented in the longitudinal direction, and the first and second cuts are fitted to the longitudinal edges of the first and second cutouts, respectively. Good.
The first and second cutouts and the first and second protrusions are engaged with the edge portions of the first and second cutouts and the back portions of the first and second cutouts, respectively. You may make it fit until it does.

The first and second cutouts may be rectangular.
The first and second cuts are opposite to each other in the longitudinal direction, and the first and second cutouts are respectively long from the longitudinal center portions of the first and second plate members. The position may be shifted in the opposite direction.

The size of the first and second cutouts may be equal to or greater than the size of the first and second protrusions.
The wiper blade further includes two caps, and the caps are fitted to both ends of the first and second plate members, respectively, thereby strengthening the integral holding of the first and second plate members and the blade rubber. You may make it do.

  In order to achieve the above object, a connection member according to the present invention is a connection member that integrally holds a pair of plate members and a blade rubber, and the connection member includes a first protrusion having a first cut and a first protrusion. And a pair of plate members including a first plate member and a second plate member, and the first plate member is attached to the first projection portion. And the second plate member has a second notch to which the second protrusion is mounted, and the first notch has an edge at the first notch. The connection member is fixed to the first and second plate members by fitting the second cut into the edge of the second notch, respectively. .

  The first and second plate members constitute a mounting position for mounting the first and second protrusions on the first and second cutouts, and a wiper blade in a completed state, respectively. When the first and second plate members are in the mounting position, the first and second notches are respectively the first and second protrusions. The first and second protrusions are respectively mounted on the first and second cutouts, and then the first and second plate members are moved from the mounting position to the first position. You may make it the edge part of the said 1st and 2nd notch, and the said 1st and 2nd protrusion part each fit by moving to a regular position.

The first and second cuts are oriented in the longitudinal direction, and the first and second cuts are fitted to the longitudinal edges of the first and second cutouts, respectively. Good.
The fitting between the first and second cutouts and the first and second protrusions is such that the edge portions of the first and second cutouts and the back portions of the first and second cutouts. You may make it carry out by engaging each.

  The first and second cuts may be directed in opposite directions in the longitudinal direction.

  According to the present invention, the first and second notches (for example, the notches 24A and 24B) of the first and second protrusions (for example, the protrusions 19A and 19B) and the first and second plate members (for example, the vertebra 7A). 7B), the first and second plate members and the blade rubbers (for example, the connection member 3) are fitted by simply fitting the first and second cutouts (for example, the cutouts 15A and 15B). For example, the blade rubber 5) can be held integrally and fixed. This can be easily and firmly performed without using a special member such as a connecting pin. Thereby, the number of members of the connecting member is reduced, and the cost can be reduced. Further, the wiper blade can be reliably assembled in a small number of steps, and the cost can be reduced while maintaining the strength of integrally holding the first and second plate members and the blade rubber by the connecting member. .

  In addition, by attaching the first and second protrusions to the notches of the first and second plate members, respectively, and moving the first and second plate members to return them to their normal positions, Since it fits, it has the effect that the number of members and the number of processes can be reduced.

  Further, since the protrusions of the connecting member are made in opposite directions and fitted into the notches of the first and second plate members, the first and second plate members and blades by the connecting member It has the effect that integral fixation of rubber can be strengthened.

  Further, since the protrusion and the notch are fitted, the inner part of the notch (for example, the engaging surfaces 25A and 25B) and the edge of the notch (for example, the engaging parts 17A and 17B) are engaged. Both can be fitted deeply and completely, and the strength of integral fixing of the first and second plate members and the blade rubber by the connecting member can be increased.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows a wiper blade 1 according to an embodiment of the present invention.

  The wiper blade 1 constitutes a part of a wiper device together with a wiper arm and a drive motor (not shown). As shown in the drawing, the connecting member 3, the blade rubber 5, and the vertebra (that is, the first and second plate members). ) 7A, 7B and cap 31 are provided. Although omitted, the connecting member 3 has a structure for connecting to the arm. Although only the vertebra 7A is shown here, the vertebra 7B is similarly provided on the opposite side. The wiper blade 1 is attached to a wiper arm via a connecting member 3, operates on a surface to be wiped such as a glass surface of a vehicle by driving the wiper arm by a drive motor, and wipes the surface to be wiped by a blade rubber 5. .

  FIG. 2 shows the blade rubber 5. The blade rubber 5 is a long rubber member and is provided with a wiping portion 11 at the lower end thereof for wiping the surface to be wiped. Further, on both sides of the blade rubber 5, grooves 13A and 13B for mounting the vertebras 7A and 7B are provided. In FIG. 2, only the groove portion 13A is shown, but the groove portion 13B is similarly provided on the opposite side portion.

  On both sides in the longitudinal direction of the blade rubber 5, reinforcing portions 16 and 16 'for increasing the strength of the blade rubber 5 are provided. A mounting portion 12 for mounting the connecting member 3 is provided between the reinforcing portions 16 and 16 '. The longitudinal center line of the blade rubber 5 is indicated by 14. The connecting member 3 attached to the attachment portion 12 is held in the attachment portion 12 by sandwiching both ends in the longitudinal direction by the reinforcement portions 16 and 16 ′.

  3 and 4 show the vertebras 7A and 7B. The vertebras 7 </ b> A and 7 </ b> B are a pair of long plate members, have substantially the same length as the blade rubber 5, and are arranged in parallel with the blade rubber 5 by being mounted on both sides of the blade rubber 5. The vertebras 7A and 7B are for evenly distributing the load applied to the blade rubber 5 over the entire length of the blade rubber 5, and are made of, for example, a metal material. As shown in FIG. 3, the positions where the ends of the vertebras 7A and 7B are aligned and attached to the blade rubber 5 are the positions of the vertebras 7A and 7B in the finished product, that is, the regular positions.

  The vertebras 7A and 7B are provided with notches 15A and 15B, respectively, near the center in the longitudinal direction. The cutouts 15A and 15B have a rectangular shape and are provided on the outer sides of the vertebras 7A and 7B. The notches 15A and 15B have engaging portions (that is, edges) 17A and 17B that engage with engaging surfaces (that is, back portions of the notches) 25A and 25B (see FIG. 5) of the connecting member, respectively. Yes.

  In the finished wiper blade, that is, in the normal position, as shown in FIG. 4, the longitudinal center line 22 of the vertebra 7A coincides with the longitudinal center line 26 of the vertebra 7B, and these Coincides with the longitudinal center line 14 of the blade rubber 5 (see FIG. 5). The notches 15A, 15B have depths of the notches 24A, 24B of the projections 19A, 19B of the connecting members in which the longitudinal center lines 18, 20 are opposite to the longitudinal center lines 22, 26 of the vertebras 7A, 7B, respectively. It is formed so as to be arranged at a position shifted by a distance. Due to this shift, when the longitudinal center lines 18 and 20 of the notches 15A and 15B are aligned with the longitudinal center line 14 of the blade rubber 5, the ends of the vertebras 7A and 7B are in a state where one end protrudes.

  FIG. 5 shows the connecting member 3 and the vertebras 7 </ b> A and 7 </ b> B attached to the blade rubber 5. Although the connecting member 3 has a U-shaped cross section and is omitted, it has a structure for connecting with the arm. Two substantially rectangular parallelepiped protrusions 19A and 19B are arranged opposite to each other at the center in the longitudinal direction of the surface attached to the attachment portion of the wiper rubber.

  The protruding portion 19A has a cut 24A that sandwiches a part of the vertebra 7A, and an engagement surface (that is, a back portion of the cut) 25A is located at the back of the cut 24A. The protrusion 19B has a cut 24B that sandwiches a part of the vertebra 7B, and the engagement surface (that is, the back of the cut) 25B is located at the back of the cut 24A. The cuts 24 </ b> A and 24 </ b> B both face the longitudinal direction of the connecting member 3, but their directions are opposite to each other. That is, since the protrusions 19A and 19B of the connecting member 3 are mounted in the notches 15A and 15B of the vertebra 7A and 7B, the orientations of the notches 24A and 24B of the protrusions 19A and 19B of the connecting member 3 are , 17B is directed in a direction opposite to the direction in which the position is returned from the position (a mounting position described later) to the normal position.

  When the connecting member 3 is mounted on the wiper rubber 5, the vertebras 7A and 7B and the blade rubber 5 are arranged such that the longitudinal center lines 18 and 20 of the notches 15A and 15B of the vertebras 7A and 7B are blade rubbers as shown in FIG. 5 is arranged so as to coincide with the center line 14 in the longitudinal direction. This position is defined as a mounting position (that is, a position for mounting). Accordingly, the notches 15A and 15B are arranged just at the positions of the slits 19A and 19B of the connecting member 3 attached to the attachment portion 12 of the wiper rubber 5. Therefore, when the connecting member 3 is attached to the attachment portion 12 of the wiper rubber 5, the projections 19A and 19B are correctly fitted into the notches 15A and 15B, respectively.

  When the longitudinal center lines 18 and 20 of the cutouts 15A and 15B are aligned with the longitudinal center line 14 of the blade rubber, the vertebras 7A and 7B have depths of the notches 24A and 24B of the projections 19A and 19B of the connecting member 3, respectively. It is in a state of moving in the opposite direction of the longitudinal direction only. Then, the projecting portions 19A and 19B of the connecting member 3 are arranged so that the incisions are directed in directions opposite to the directions in which the vertebras 17A and 17B are returned from the mounting positions to the original positions. When the vertebras 7A and 7B are returned to their normal positions, the engaging surface 25A of the connecting member 3 and the engaging portion 17A of the vertebra 7A, and the engaging surface 25B of the connecting member 3 and the engaging portion 17B of the vertebra 7B contact each other. .

Next, a method for assembling the wiper blade 1 will be described with reference to FIGS.
FIG. 6 shows a state in which the vertebras 7 </ b> A and 7 </ b> B are fitted into the groove portions 13 </ b> A and 13 </ b> B of the blade rubber 5. As shown in FIG. 7, the vertebras 7 </ b> A and 7 </ b> B are arranged such that the longitudinal center lines 18 and 20 of the notches 15 </ b> A and 15 </ b> B are aligned at the position of the longitudinal center line 14 of the blade rubber 5. As a result, the vertebras 7A and 7B are moved in the direction opposite to the longitudinal direction by the depths of the notches 24A and 24B of the projections 19A and 19B of the connecting member 3, that is, in the mounting position. Therefore, each end is in a protruding state.

  FIG. 8 shows a state in which the connecting member 3 is attached to the vertebra 7A, 7B and the blade rubber 5 at the attachment position shown in FIG. Protrusions 19A and 19B of the connecting member 3 are attached to the notches 15A and 15B of the vertebras 7A and 7B, respectively.

  In FIG. 9, the blade rubber 5 is omitted, and the relationship between the vertebras 7A and 7B and the connecting member 3 is shown. Since the longitudinal center lines 18 and 20 of the cutouts 15A and 15B are aligned with the longitudinal center line 14 of the blade rubber 5, that is, at the mounting position, the vertebras 7A and 7B are projections of the connecting member 3, respectively. The portions 19A and 19B are moved in the direction opposite to the longitudinal direction by the depths of the cuts 24A and 24B, and the ends of the vertebras 7A and 7B are in a state where one end protrudes.

  FIG. 10 shows the completed form. From the mounting position shown in FIG. 8, it is slid to a regular position along the longitudinal direction. Similarly, the vertebra 7B is slid to the normal position along the longitudinal direction. As a result, the cuts 24A and 24B of the protrusions 19A and 19B sandwich the part of the vertebra 7A and 7B, and the engagement portions 17A and 17B of the vertebra 7A and 7B and the engagement surfaces 25A and 25B of the connecting member 3 are , Engage. Moreover, since it returned to the regular position, the ends of the vertebras 7A and 7B are aligned. In order to strengthen the integral holding of the vertebra 7A, 7B and the blade rubber 5, a cap 31 can be fitted to the end of the vertebra 7A, 7B, the blade rubber 5. FIG. 11 shows the positions of the vertebras 7A and 7B in an easy-to-understand manner by omitting the connecting member 3. The cutouts 15A and 15B of the vertebra are returned to their normal positions and are fitted into the protrusions 19A and 19B of the connecting member 3, and the connecting member 3 integrally holds the vertebra 7A and 7B and the blade rubber 5. is doing.

  As described above, in the wiper blade of this embodiment, the vertebra 7A, 7B and the blade rubber 5 are integrated by merely fitting the notches 15A, 15B of the vertebra 7A, 7B and the protrusions 19A, 19B of the connecting member 3. It can be held and fixed in a fixed manner, and can be easily and firmly performed without using a special member such as a connecting pin. Therefore, the number of members can be reduced and the cost can be reduced. Further, the wiper blade can be reliably assembled with fewer steps.

  Also, by attaching 15A and 15B to the notches of the vertebras 7A and 7B and moving the vertebras 7A and 7B so that they return to their normal positions, they fit together, thus reducing the number of members and the number of processes. Can do.

  In addition, since the notches 24A and 24B of the projections 19A and 19B of the connecting member 3 are opposite to each other and are fitted to the notches 15A and 15B of the vertical bars 7A and 7B, The integral fixing of 7B and the blade rubber 5 can be strengthened.

  Further, by engaging the engagement surfaces (that is, the back portions of the cuts) 25A and 25B with the engagement portions (that is, the edges) 17A and 17B of the notches 15A and 15B, the protrusions 19A and 19B Since the portions 19A and 19B and the notches 15A and 15B are fitted, they can be fitted deeply and completely, and the strength of fixing the connecting member 3 to the vertebras 7A and 7B can be increased.

  This embodiment can be applied not only to a wiper blade of an automobile but also to an application that needs to wipe a surface to be wiped.

It is a perspective view which shows the wiper blade in embodiment of this invention. Similarly, it is a perspective view showing a blade rubber. Similarly, it is a perspective view which shows a vertebra. It is an enlarged view of the notch part of FIG. Similarly, it is a perspective view showing a vertebra mounted on a connecting member and a blade rubber. Similarly, it is a perspective view which shows the vertebra attached to the blade rubber. Similarly, it is a perspective view which shows the vertebra in a mounting position. FIG. 7 is a perspective view showing a state in which a connecting member is attached to the vertebra and the blade rubber shown in FIG. 6. It is a perspective view which shows the state which abbreviate | omitted the blade rubber from FIG. Similarly, it is a perspective view showing a completed type wiper blade. It is a perspective view which shows the state which abbreviate | omitted the connection member from FIG. It is a disassembled perspective view which shows the conventional connection member. Similarly, it is a sectional view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wiper blade 3 Connecting member 5 Blade rubber 7A Vertibra 7B Vertibra 11 Wiping part 12 Attachment part 13A Groove part 13B Groove part 14 Longitudinal centerline 15A Notch 15B Notch 16 Reinforcement part 16 'Reinforcement part 17A Engagement part 17B Engagement part 17B Engagement part 17B Longitudinal centerline 19A Protrusion 19B Protrusion 20 Longitudinal centerline 22 Longitudinal centerline 24A Incision 24B Incision 25A Engagement surface 25B Engagement surface 26 Longitudinal centerline 31 Cap

Claims (7)

Blade rubber to wipe the surface to be wiped;
First and second plate members mounted on both sides of the blade rubber;
In the wiper blade comprising the first and second plate members and a connecting member for integrally holding the blade rubber,
The connecting member has a first protrusion having a first notch and a second protrusion having a second notch, and the first and second notches are directed in opposite longitudinal directions. And
The first plate member has a first notch in which the first protrusion is mounted, and the second plate member has a second notch in which the second protrusion is mounted. The first and second cutouts are in positions shifted in the opposite longitudinal directions from the longitudinal center portions of the first and second plate members,
The first and second plate members constitute a mounting position for mounting the first and second protrusions on the first and second cutouts, and a wiper blade in a completed state, respectively. Can be placed at regular positions,
When the first and second plate members are in the mounting position, the first and second notches are disposed at positions corresponding to the first and second protrusions, respectively.
By attaching the first and second protrusions to the first and second cutouts respectively and moving the first and second plate members from the attachment position to the regular position, The first notch of the first protrusion is at the longitudinal edge of the first notch, and the second of the second protrusion is at the longitudinal edge of the second notch. The wiper blade is characterized in that the notches are fitted to each other so that the connecting member is fixed to the first and second plate members. The wiper blade according to claim 1 ,
The first and second cutouts and the first and second protrusions are engaged with the edge portions of the first and second cutouts and the back portions of the first and second cutouts, respectively. A wiper blade that fits to the end. The wiper blade according to any one of claims 1 to 2 ,
The wiper blade according to claim 1, wherein the first and second cutouts are rectangular. The wiper blade according to any one of claims 1 to 3 ,
The wiper blade according to claim 1, wherein the size of the first and second cutouts is equal to or larger than the size of the first and second protrusions. The wiper blade according to any one of claims 1 to 4 ,
The wiper blade further includes two caps, and the caps are fitted to both ends of the first and second plate members, respectively, thereby strengthening the integral holding of the first and second plate members and the blade rubber. A wiper blade characterized by A connecting member that integrally holds a pair of plate members and a blade rubber,
The connecting member has a first protrusion having a first notch and a second protrusion having a second notch, and the first and second notches are directed in opposite longitudinal directions. And
The pair of plate members includes a first plate member and a second plate member, and the first plate member has a first notch on which the first protrusion is mounted, and the second plate member The plate member has a second notch to which the second protrusion is mounted,
The first and second plate members constitute a mounting position for mounting the first and second protrusions on the first and second cutouts, and a wiper blade in a completed state, respectively. Can be placed at regular positions,
When the first and second plate members are in the mounting position, the first and second notches are disposed at positions corresponding to the first and second protrusions, respectively.
By attaching the first and second protrusions to the first and second cutouts respectively and moving the first and second plate members from the attachment position to the regular position, The first notch of the first protrusion is at the longitudinal edge of the first notch, and the second of the second protrusion is at the longitudinal edge of the second notch. The connecting member is characterized in that the notches are respectively fitted so that the connecting member is fixed to the first and second plate members. The connecting member according to claim 6 ,
The fitting between the first and second cutouts and the first and second protrusions is such that the edge portions of the first and second cutouts and the back portions of the first and second cutouts. A connecting member characterized by being engaged with each other.

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