JPH0767901B2 - Windshield wiper or similar wiper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a windshield or similar surface wiper that includes an arm releasably coupled to a blade by a connector.

Here, the term "similar surface" refers to a surface other than a windshield surface such as a headlamp glass or a back mirror to be wiped.

More particularly, the invention relates to a wiper of the type described in West German patent publication 2128739. The wiper shown in this patent specification is as follows. That is, the blade includes one elongated frame having an inverted cross-section with the groove, the frame having parallel sides, a bonding web, and one extending transversely between the sides of the frame. It has a pin pivot. This divides one opening in the web into two longitudinally extending sections at the reference divider.
The arm has one hook end with a through hole and one semi-circular bend integral with the parallel body and rim of the arm. The connector also has a pair of facing plate-like side parts near the side surfaces of the frame so as to be aligned in parallel with the side surfaces of the connector for supporting the inner surface of the bent portion of the arm and receiving the pivot pin. One hollow bearing, extending inwards and outwards transversely, of at least partially cylindrical shape, and fixed between the sides of the connector and upwards between the sides for engaging holes in the hook end. And a single protrusion extending to. A wiper with one blade, one arm and one connector having these characteristics is referred to herein as a "wiper of this kind".

According to one known assembly procedure for such wipers, the connector is first pivotally mounted on the blade with respect to the pivot pin. The blade is deeply tilted with respect to the arm to provide a passage for the hook end of the arm through a portion of the blade in the web in the opening. During this initial tilt insertion, the connector is tilted with respect to the blade. The blade is manipulated after the free end of the rim portion of the arm has passed through the bearing of the connector such that the bearing of the connector supports the inner surface of the bend of the arm. The arm and connector are then moved relative to each other such that the protrusion on the connector is in a hole in the hook end of the arm. The blade is pivoted with respect to both the arm and the connector until ultimately the blade is substantially parallel to the arm. The procedure for disassembly is the reverse of that for assembly.

The procedure for assembling and disassembling a wiper of this kind described above is such that the arm can be pulled away from the windshield surface or the like to be wiped into one locked rear position. Only suitable for installation. In such cases, the arm can be deeply tilted at or near 45 ° to allow the passage of the arm hook end through one of the above-mentioned blade openings of the arm. Become. However, when installing the wiper, the arm end remote from the blade and one holding body supporting the arm with respect to the vibrating wiper shaft may always be hidden in the groove in the skater of the vehicle body. This scuttle prevents the arm from being sufficiently pulled away from the windshield or similar surface to be wiped, and also allows the blade to assume a deep tilted attitude relative to the arm that is required for assembly. Hinder.

According to the invention, there is one arm (30; 30) removably connected to the blade (10) by one connector (50; 50a), said arm comprising an opening (38,38a) and a half. Circular bend (32, 32
a) has a hook-shaped bent end portion, and the semi-circular bent portion integrates the parallel main body portions (34, 34a) and the rim portion (36, 36a) of the arm, and the blade is Opening (18a, 18b) having an elongated yoke of substantially inverted U-shaped cross section that defines two parallel sides (12) and a connecting web (14).
Extending longitudinally along the web (14) and a pivot pin (16) traversing between the parallel sides (12) so as to divide the opening into two openings (18a, 18b). The connector has two opposite plate-like side surfaces (52, 52a) so as to be positioned parallel to the parallel side surface (12) of the yoke at the opening, By providing a hollow bearing (54, 54a) for receiving a pivot pin, the connector is rotatably supported by the bearing, while the connector supports the arm bending portion from the outside, and the hook-shaped bearing is provided. The protrusions (56, 5) are engaged with the openings (38, 38a) formed at the bent ends.
6a) is spaced from the bearing with respect to the bearing (54, 54a), and snap-engaging latching means for holding the connector in a desired position is provided on the bearing (54, 54a).
a) formed on the connector at a distance from a), and the connector (50, 50a) has a hook-shaped bent end portion which can be inserted into one opening portion (18b) formed in the yoke; 1 and the protruding portion (56,
A windshield surface or the like, adapted to be rotatable around the pivot pin between a second position at which 56a) can engage the opening of the hook-shaped bend; In the wiper of the surface to be formed, the protrusions (56, 56a) and the latch means (68) are arranged on opposite sides with respect to the bearings (54, 54a), and the blade (10) as a whole has the arm (30 , 30
When extending parallel to a) and the connector is in the first position, the hook-shaped bent portion includes the protrusion (56,
56a) allows the connector to pass between the bearings (54, 54a) and the latching means (68) without being hindered by the opening (18) of the yoke (18).
b) can be entered and said blade (10) as a whole is said arm (30, 30
When the connector is moved to the second position while being extended in parallel with a), the latch means (68)
Is configured to snap-engage with an edge portion of the connecting web (14) on the side defining the one opening portion (18b) of the yoke. Wipers with similar surfaces are provided.

In the wiper of the present invention, the blade is kept substantially parallel to the arm during assembly and disassembly, so the wiper is installed when the arm cannot be pulled too far away from the windshield or similar surface to be wiped. It will be appreciated that it is particularly suitable for.

Preferably the connector comprises latching means spaced from the bearing for gripping engagement with an edge of the connecting web defining an opening in the blade. The protrusion on the connector is preferably spaced from the bearing. One cross member is provided between both side surfaces of the connector and spaced from the bearing side surface remote from the protrusion, and a hook end of the arm is formed between the bearing and the cross member. It may be inserted into one of the openings. Preferably, the latch means on the connector is spaced from the cross member on the side remote from the bearing.

The opening in the hook end of the arm extends through its rim and the projection on the connector projects from one plate-like element joining one longitudinal edge of the connector, The protrusion may extend between the both side surfaces of the connector in parallel with them. Alternatively, the opening in the hook end of the arm may extend through the body of the arm and the protrusion may be mounted on the bearing of the connector by a single mount. good.

The two wipers for windshield surfaces or similar surfaces according to the present invention will be described in more detail below with reference to the drawings by way of example only.

Before discussing the structure of the connector, it will be convenient to discuss the wiper blades and wiper arms.

The blade 10 is of a known type which includes an elongated frame having substantially U-shaped cross sections with parallel sides 12 and a connecting web 14. The pivot pin 16 extends transversely between the two sides 12 of the frame, which divides the opening in the web 14 into two longitudinally extending portions 18a, 18b with reference partitions. The opening portion 18a is shorter than the opening portion 18b. blade
10 is also a rubber or rubber-like wiper piece 20 and an auxiliary frame 22 (1
(Only one is shown) may be included. The auxiliary frame is pivotable with respect to the elongated frame carrying the pivot pin 16.

Arms 30 (Figs. 1 and 2) and 30a (Fig. 6) are of the known type with hook ends. Each hook end has a semi-circular bend 32, 32a which is integral with the mutually parallel body 34, 34a and rim 36, 36a of the arm 30, 30a, respectively. There is one opening 38 in the arm 30 that extends through the rim portion 36 and, in the case of the arm 30a, an opening 38a that extends through the body portion 34a.

The basic advantage of the present invention is that the blade 10 is attached to the arm 30 or 30a.
It has the disadvantage that it can be removed from or assembled to the arm 30 or 30a by using a suitable connector, even if it remains substantially parallel to.

The connector 50 shown in FIGS. 1-5 is suitably formed of a plastic material and is suitable for lying close to and parallel to both sides 12 of the elongated frame at the openings 18a, 18b. Two plate-like sides 52 facing each other and one at least partially cylindrical for receiving a pivot pin for receiving the connector pivotally inside and for supporting the bend 32 of the arm outside. Hollow bearing
54 and an opening that extends through the rim portion 36 of the arm 30 and is located in a fixed position with respect to both sides of the connector.
It includes one protrusion 56 which forms a retaining means extending in one direction to engage 38.

The projecting portion 56 is fixed on a plate-like or base member 58 of the connector 50, and this member 58 is a side surface of the connector.
Extending to connect them between one longitudinal edge 80 of 52 and one side of the bearing 54, a protrusion 56 extends parallel to them between the connector opposite sides 52. On the other side of the bearing 54, a transverse member 62 extends transversely between the connector sides 52 and is rigidly connected thereto. One plate-like member forming another base member 60 is rigidly connected to the cross member 62 and the side surfaces 52. This member carries a second transverse member 64 which stands on it with a free end. Between the bearing 54 and the cross member 62 is an opening 66 through the connector 50 for receiving the hook end of the arm 30 as described below. The free end of the cross member 64 carries a latching means 68 including a pair of raised portions 70 defining a groove 72 therebetween for receiving the closer edges of the web 14 of the blade 10 as described below. . The latch means 68 includes a fingerhold flange 74 which lays over the web 14 and which is accessible even if the cross member 62 is used as a fingerhold. The plate-shaped member 60 is the side surface 52 of the connector.
Aligned with said one longitudinal edge 80, and thus the latching means 68 lies in the plane formed by the other longitudinal edge 82 of connector side 52.

As depicted in FIG. 3, each side 52 of the connector is formed with an open end keyhole slot 76, the underside of the bearing 54 is formed with a corresponding longitudinal opening 78,
This allows the connector 50 to be gripped and engaged with the pivot pin 16 and to assume an inclined position relative to the blade 10 as shown in FIG.

Alternatively, the side surface of the connector may be formed with one hole forming an inner row of cavities in the bearing, so that the connector and the blade are permanently connected.

During the assembly process, the hook end of the arm 30 has a bearing 54 and a cross member.
It penetrates through the opening 66 of the connector 50 between itself and 62. It should be understood as important that the first movement is performed while the blade 10 is along the arm 30, ie, the blade 10 remains substantially parallel to the arm 30. Next, the hook end is lowered and the rim portion 36 and the bent portion 32 of the arm 30 enter the long opening 18b. When the free end of the rim portion 36 passes over the bearing 54 on the pivot pin 16, the blade 10 moves parallel to itself, causing the inner surface of the bend 32 to engage the outer surface of the bearing 54. Finally, the connector 50 (clockwise as shown in FIG. 2) is engaged until the edge of the web that terminates the opening 18b is in gripping engagement with the groove 72 provided by the latching means 68. Being pivoted. Since the cross member 64 is not supported on the connector side surface 52, the cross member 64 can be elastically deformed toward the cross member 62, which facilitates the gripping engagement. . It is important to note here that this pivoting movement of the connector 50, on the one hand, brings the projection 56 into engagement with an opening 38 extending through the rim 36 of the arm 30 so that the connector is supported on the arm 30. Should be understood as.

In a preferred application, the blade 10 is the connector 50 when the wiper is installed such that the arm 30 cannot be pulled away from the windshield surface or similar surface to be wiped to a locked rear position.
While in latching engagement with 10, the projection 56 cannot pivot enough to be pulled out of the opening 38.

FIG. 6 shows a modified connector 50a for use with the arm 30a described below. The connector 50a has basically the same shape as the connector 50, but the protrusion 56 is not carried by the base member 58. Alternatively, the protrusion 56a is provided as one rim portion of an "L" shaped element, which forms a retaining means which takes a fixed position with respect to the opposite sides 52a of the connector 50a, while the rest of said element is provided. The rim portion of is fixed to the bearing 54a and functions as a mounting portion. The arm 30a can be attached to the blade 10 as in the case of the arm 30. However, the difference here is that when the connector 50a pivots clockwise and takes the assembled position, the protrusion 56a engages with the opening 38a for holding the hook end.

[Brief description of drawings]

FIG. 1 is a fragmentary sectional side view of one arm and blade assembled by one connector. FIG. 2 is a diagram showing a first stage of the assembly of the wiper component shown in FIG. 3 to 5 are a side view, a plan view and an end view of the connector shown in FIG. 1, respectively. FIG. 6 is a fragmentary sectional view of a wiper component set in a modified form of that shown in FIG. 10 …… Blade, 12 …… Frame side 14 …… Web, 18a, 18b …… Opening 22 …… Auxiliary frame, 30,30a …… Arm 34,34a …… Main body, 36,36a …… Rim 38, 38a …… Aperture, 50,50a …… Connector 52 …… Connector side, 54 …… Bearing 62,64 …… Cross member

Claims (12)

[Claims] 1. An arm (3) removably connected to a blade (10) by a connector (50; 50a).
0; 30a), the arm has an opening (38,38a) and a semi-circular bend (32,32a).
a) has a hook-shaped bent end portion, and the semi-circular bent portion integrates the parallel main body portions (34, 34a) and the rim portion (36, 36a) of the arm, and the blade is Opening (18a, 18b) having an elongated yoke of substantially inverted U-shaped cross section that defines two parallel sides (12) and a connecting web (14).
Extending longitudinally along the web (14) and a pivot pin (16) traversing between the parallel sides (12) so as to divide the opening into two openings (18a, 18b). The connector has two opposite plate-like side surfaces (52, 52a) so as to be positioned parallel to the parallel side surface (12) of the yoke at the opening, By providing a hollow bearing (54, 54a) for receiving the pivot pin, the connector is rotatably supported by the bearing, while the connector supports the bent portion of the arm from the outside, and the hook shape is provided. So as to engage with the openings (38, 38a) formed at the bent ends of the protrusion (5
6, 56a) is spaced from the bearing with respect to the bearing (54, 54a), and snap-engaging latching means for holding the connector in a desired position is provided in the bearing (5).
4, 54a) is formed at a distance from the connector, and the connector (50, 50a) may have the hooked bent end inserted into one opening (18b) formed in the yoke. Rotation about the pivot pin between a possible first position and a second position at which the projection (56, 56a) of the connector can engage the opening of the hook-shaped bend In a wiper having a windshield surface or a surface similar thereto, which is configured to be possible, the protrusion (56, 56a) and the latch means (68) are opposite to each other with respect to the bearing (54, 54a). The blade (10) as a whole and the arm (30, 30
When extending parallel to a) and the connector is in the first position, the hook-shaped bent portion includes the protrusion (56,
56a) allows the connector to pass between the bearings (54, 54a) and the latching means (68) without being hindered by the opening (18) of the yoke (18).
b) can be entered and said blade (10) as a whole is said arm (30, 30
When the connector is moved to the second position while being extended in parallel with a), the latch means (68)
Is configured to snap-engage with an edge portion of the connecting web (14) on the side defining the one opening portion (18b) of the yoke. A wiper with a similar surface. 2. The wiper according to claim 1, wherein the cross member (62) has both side surfaces (52) of the connector.
It is provided so as to extend in the transverse direction and is spaced from the bearing (54) on the side opposite to the protrusion (56), and the latch means (68) is opposite to the bearing. Spaced apart from the cross member (62) on the side, the hooked bend of the arm is insertable into an opening formed between the bearing and the cross member,
The wiper. 3. The wiper according to claim 2, wherein the latch means (68) of the connector is longitudinally spaced from both side surfaces (52) of the connector. The wiper is connected to the both side surfaces (52) by a plate-shaped member (60), and the plate-shaped member (60) is also connected to the transverse member (62). 4. The wiper according to claim 3, wherein the plate-shaped member (60) is located in a plane perpendicular to both side surfaces of the connector, and the plate-shaped member is a connector of the connector. The wiper having a first longitudinal edge (80) on each of the opposite sides. 5. The wiper according to claim 4, wherein the latch means (68) is located in a region of a plane perpendicular to both side surfaces of the connector, and each of the both side surfaces of the connector. Having a second longitudinal edge (80),
The wiper. 6. A wiper according to claim 5, wherein said connection of said latching means (68) to said cross member (62) is further substantially parallel to said cross member (62). The wiper having an extending cross member (64). 7. The wiper according to any one of claims 1 to 6, wherein the latch means (68) facilitates release of the latch means.
The wiper having an extension (74) located on the connecting web (14) of the blade. 8. The wiper according to any one of claims 1 to 7, wherein the opening (38) formed in the hook-shaped bent portion of the arm (30) has the rim portion (36). And a protrusion (56) of the connector (50) protrudes from a plate-like element (58) extending between both side surfaces of the connector and connecting the both side surfaces, and the protrusion (56) is The wiper extending between both side surfaces of the connector and positioned parallel to the both side surfaces. 9. The wiper according to any one of claims 1 to 7, wherein the arm (30
The opening (38a) formed in the hook-shaped bent portion of (a) extends through the main body (34a), and the protrusion (56a) is attached to the connector (50a) by the mounting portion (56b). The wiper mounted on the bearing (54a). 10. The wiper according to claim 9, wherein the protrusion is one rim (56a) of an L-shaped element.
The other rim (56b) of the L-shaped element
Said wiper forming said mounting part. 11. A wiper according to any one of claims 1 to 10, wherein the bearing (54,
54a) has a long opening (78), said opening (78) of said connector (50, 50a) of said connector being snapped onto said pivot pin (16) of said blade (10). The said wiper is comprised so that it may respond | correspond to the open end keyhole slot (76) formed in both side surfaces (52, 52a). 12. The wiper according to any one of claims 1 to 11, wherein the pivot pin (16) has two openings formed in the yoke and having different sizes. The wiper divided into (18a, 18b), the larger opening (18b) being used to receive the hooked bend.