JPH0741644Y2 - Wiper blade - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a wiper blade for a vehicle, and more particularly to a wiper blade that can be suitably used in a cold region.

[Prior Art] When a wiper blade having an exposed metal portion is used in a cold region, water droplets or snow adhering to the metal portion freezes to deteriorate the operability of the wiper blade and to sufficiently perform the wiper function. There is a problem that you can not exert it. In order to solve such a problem, there has been proposed a wiper blade in which metal parts such as a blade member are entirely covered with a water resistant cover so that rain or snow does not directly adhere to these metal parts.

An example of this type of wiper blade is, for example,
There is one disclosed in 61-3056. In such a wiper blade, as shown in FIGS. 6 and 7, the wiping rubber ribbon 5 includes a wiping portion 5a that is gradually thinned toward the tip portion, a thin plate-shaped neck portion 5b, and a cross section. The projecting portion 5c has a substantially triangular shape. In addition, the wiper blade 1
The elastic waterproof cover 3 that covers the stay 2 is integrally formed with the cover 3 at both ends of the cover 3 by bending inwardly and having an approximately U-shaped cross section. The engagement portion 3a is engaged with the ribbon holder 4 held by the tip of the stay 2, not shown, so that the cover 2 is supported by the stay 2 via the ribbon holder 4. Then, with the engaging portion 3a engaged with the ribbon holder 4, the rubber ribbon 5 is inserted through the gap between the left and right engaging portions 3a, and the neck portion 5b of the rubber ribbon 5 is fitted into the gap. 6
Is an adhesive sealing means for tightly sealing the entire fitting portion of the rubber ribbon 5 and the cover 3, and the sealing means 6 is, for example, a rubber when the rubber ribbon 5 is inserted into the gap of the engaging portion 3a. An adhesive or an adhesive member is applied or stuck to the entire area of the neck 5b of the ribbon 5.

[Problems to be Solved by the Invention] In the wiper blade having the above configuration, the rubber ribbon 5
When the rubber ribbon 5 is deteriorated due to wear or the like and a defective wiping occurs, the rubber ribbon 5 is sealed by the sealing means 6 to the engaging portion 3a of the cover 3.
Since it is adhesively fixed to the rubber ribbon 5, it is not possible to remove the rubber ribbon 5 alone and replace the parts. Therefore, in order to replace the rubber ribbon 5, it is necessary to remove the sealing means 6 and remove the entire cover 3, and the replacement work is extremely complicated and difficult. Further, when it is difficult to remove the cover 3, it is necessary to replace the entire wiper blade, which results in a large cost burden.

The object of the present invention is to solve the above-mentioned problems and to remove the cover member without removing the cover member, so that the wiper member can be attached / detached while the cover member is still attached, and it is easy to replace the wiper member alone. Another object of the present invention is to provide a wiper blade that can be manufactured at low cost.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a wiper member for wiping a glass surface, a wiper member detachably held in the longitudinal direction, and An outer holder formed with a protrusion protruding along the outer holder, and an inner holder supporting the outer holder formed with a holder holding the protrusion, and a plurality of inner holders supporting the inner holder. A continuous member, and a blade member that supports the continuous member and is connected to the wiper arm,
A cover member is provided, which surrounds and covers the plurality of connecting members and the blade member, and a cover member which is interposed and attached between the outer holder and the inner holder.

[Operation] In the wiper blade having the above configuration, the wiper member is detachably supported by the outer holder, and the protrusion of the outer holder is held by the holder portion of the inner holder, so that the outer holder supports the inner holder. ing. And since the cover member is attached between the inner holder and the outer holder,
Since the cover member is firmly held without the need for a wiper member, the wiper member can be attached and detached while the cover member is still attached, and therefore only the wiper member that needs replacement most due to wear or the like. The parts can be easily replaced by themselves.

[Embodiment] Next, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a partially cutaway explanatory view of a wiper blade to which the present invention is applied, and FIG. 2 is a sectional view for explaining II-II in FIG.

In the illustrated example, the wiper blade 100 is a blade member 10 provided at the tip of an arm member (not shown), a rubber wiper member 50, an inner holder 30 and an outer holder 40 that support the wiper member 50, The outer holder 40 and the blade member 10 are connected by a plurality of connecting members 20 and a waterproof cover member 60.

As shown in FIG. 2, the wiper member 50 includes a wiper portion 52.
And a first holding portion 54 and a second holding portion 56.

The wiper portion 52 has a substantially triangular cross section, is gradually thinned toward the tip, and is integrally fixed to the first holding portion 54 via a neck portion 52a.

The first holding portion 54 has a substantially H-shaped cross section, and has a constricted portion 54c between the upper protruding portion 54a and the lower protruding portion 54b.
Are formed.

In addition, the second holding portion 56 has a cross-sectional shape of a substantially arrow shape, and the neck portion 56 integrally fixed to the first holding portion 54.
It is composed of a and a head 56b.

As shown in FIGS. 2 and 3, the outer holder 40 engages with the first holding portion 54 of the wiper member 50 and holds the first holding portion 54, and the wiper member 50. And a second holder portion 44 that engages with and holds the second holding portion 56 of the.

The first holder part 42 has the entire shape of the first holding part.
Forming a flat cylindrical body capable of accommodating the protruding portion 54a constituting 54,
The left and right sides are bent portions 42a, 42a having a U-shaped cross section.
Are configured. Further, a slit portion 42b into which the constricted portion 54c of the first holding portion 54 is inserted is formed on the lower side plate constituting the first holder portion 42.

The second holder 44 is composed of a tubular body having a substantially rectangular cross section, and is formed with protrusions 44a, 44a extending horizontally along both longitudinal sides of the upper side plate thereof.
A slit portion 44b into which a neck portion 56a constituting the second holding portion 56 is inserted is formed at the center of the lower side plate that forms a boundary with the holder portion 42.

The outer holder 40 needs to have appropriate rigidity for applying a uniform pressing force in the longitudinal direction of the wiper member 50 and appropriate elasticity for ensuring the followability to the curved glass surface of the wiper member 50. Yes, it is preferably made of, for example, synthetic resin or hard rubber. When the outer holder 40 is made of resin, the contact resistance with the rubber wiper member 50 can be reduced, and the wiper member 50 can be smoothly attached to and detached from the outer holder 40.

Furthermore, on the one end side in the longitudinal direction of the outer holder 40,
As shown in FIG. 4, a notch portion 42c and a window portion 44c used when the wiper member 50 is attached to and detached from the outer holder 40.
Are formed.

The window portion 44c is formed by expanding the slit portion 44b of the outer holder 40 in the width direction, and the head portion 56b of the second holding portion 56 is located inside the second holder portion 44 through the window portion 44c. Is inserted.

Further, the cutout portion 42c is formed by cutting out a side plate on the lower side of the first holder portion 42, and the protruding portion 54a of the first holding portion 54 is inserted through the cutout portion 42c.

When the wiper member 50 is attached, the cutout portion
One end of the wiper member 50 is inserted through the 42c and the window portion 44c, and the second holding portion 56 of the wiper member 50, the second holder portion 44 of the outer holder holder 40, and the first holding portion of the wiper member 50 are inserted.
54 and the first holder portion 42 of the outer holder 40 are engaged with each other, and in that state, the wiper member 50 is attached to the outer holder 40.
It may be inserted along the longitudinal direction of the.

As shown in FIG. 2 and FIG. 5, the inner holder 30 is provided with an elongated substrate 32 arranged along the longitudinal direction of the wiper blade 100 and at a predetermined interval along the longitudinal direction of the substrate 32. And a plurality of holder parts 34. The holder portion 34 is composed of a pair of claw-shaped bent portions 34a, 34a formed on both sides of the substrate 32, and the outer holder 40 is configured to include the claw-shaped bent portions 34a, 34a.
The outer holder 40 is supported and fixed by locking the protruding portions 44a, 44a of the holder portion 44.

The inner holder 30 is supported and fixed by the mounting portions 22 formed at both ends of the connecting member 20.
As shown in FIG. 2, the mounting portion 22 has a substantially C-shaped cross section, and is provided in a state where the inner holder 30 is housed therein.

Further, the cover member 60 is covered by the blade member 10, the connecting member 20, and the inner holder 30 so as to entirely surround them, and further, the lower portion constituting the cover member 60 is the inner holder 30. And outer holder 40
It is necessary to be attached so as to be sandwiched between and.
Both end surfaces of the cover member 60 and the outer holder 40 are covered with a cap 70 as shown in FIG.

Next, the operation of this embodiment will be described.

In this embodiment, since the metal blade member 10, the connecting member 20, and the inner holder 30 are entirely surrounded by the cover member 60, water droplets, snow, or the like may be directly attached to the metal member. As a result, it is possible to prevent deterioration in operability of the wiper blade due to freezing.

In addition, in the present embodiment, the wiper member 50 is supported by the outer holder 40, the outer holder 40 is supported by the inner holder 30, and the cover member 60 is interposed between the outer holder 40 and the inner holder 30. As a result, the wiper member 50 can be attached and detached as a single unit, so that the parts of the wiper member 50 can be replaced without removing other members such as the cover member 60.

Further, in this embodiment, the wiper member 50 can be attached and detached by itself through the notch 42c and the window 44c formed in the outer holder 40, and the wiper member 50 is configured to be easily replaced. There is.

Further, in the present embodiment, the outer holder 40 can be made of a material having a small contact resistance with the wiper member 50, so that the wiper member 50 can be mounted smoothly.

Although one embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made within the scope of the gist of the invention. For example, the inner holder 30 and the outer holder 40 only need to be able to support and fix the wiper member 50, and the mutual engagement forms thereof can take various configurations.

According to the present invention, since the cover member is interposed between the inner holder and the outer holder and the wiper member is supported by the outer holder, the wiper member is attached and detached independently of the cover member. As a result, the wiper member can be easily replaced as a single component.

[Brief description of drawings]

FIG. 1 is a front view for explaining an embodiment of a wiper blade of the present invention with a part cut away, and FIG. 2 is a view in FIG.
II-II explanatory sectional view, FIG. 3 is an explanatory perspective view showing the outer holder, FIG. 4 is a partial explanatory view of the wiper blade seen from the IV direction in FIG. 1, and FIG. 5 is an inner holder. FIG. 6 is an explanatory perspective view showing an example of a conventional wiper blade, and FIG. 7 is a sectional view taken along the line AA in FIG. 10 …… Blade member 20 …… Coupling member, 30 …… Inner holder 40 …… Outer holder 42 …… First holder part 44 …… Second holder part 50 …… Wiper member 52 …… Wiper part 54 …… 1st holding part 56 ...... 2nd holding part 60 ...... cover member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Osamu Kondo 1 Toyota-cho, Toyota-shi, Aichi Toyota Motor Corporation (56) References: Showa 63-129659 (JP, U) Showa 59-18057 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A wiper member for wiping a glass surface, and the wiper member being detachably held in a longitudinal direction,
An outer holder formed with a protruding portion protruding along the longitudinal direction; an inner holder formed with a holder portion having a shape for holding the protruding portion, the inner holder supporting the outer holder with the holder portion; A plurality of connecting members to support, a blade member that supports the connecting members and is connected to the wiper arm, surrounds and covers the plurality of connecting members and the blade member, and connects the outer holder and the inner holder. A wiper blade, comprising: a cover member that is interposed and attached.