JPH0737835U - Fever wiper - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To prevent freezing of the wiper installed in the vehicle window and to prevent snow accumulation. [Structure] An electric heating wire 7 is arranged directly or in close proximity to the wiper blade 5 or the blade supporting device, or is replaced with an electric heating material itself and is appropriately energized to heat the blade or the blade supporting device to freeze it. To prevent snow accumulation, the current-generating wire rod should be bent into a U-shaped tip and embedded in the blade, or be detachably attached to the blade supporting device, or fixed or detachable surrounding the blade supporting device. An electric heating wire is provided on the cover. Further, the metal fittings arranged on the blade are replaced with electric heating wire rods (insulation treatment is performed if necessary).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a fan type wiper installed in a glass window of a vehicle such as an automobile, and is configured to prevent freezing and accumulation of snowfall in a cold region.

[0002]

[Prior art]

 It is well known that windshields and windshields of vehicles have wipers for cleaning rainwater. In cold regions, the wiper blade may freeze on the glass surface while the vehicle is stopped, or snow may accumulate on the wiper during snowfall, impeding the operation of the wiper and obstructing the visual field. However, conventional wipers do not take any measures to prevent freezing and snow accumulation.

[0003]

[Problems to be solved by the device]

 Therefore, the present invention arranges a current generating wire (nichrome wire, wire covering nichrome wire with an insulating material, etc.) on a wiper conventionally known as a wiper or a winter wiper, or the wiper itself. All or part of this is made up of heat-generating members so that it does not interfere with the operation of the wiper and the field of view when electricity is applied when it freezes or when snow accumulates.

[0004]

[Means for Solving the Problems]

 In other words, it is constructed by arranging the heating wire for heating directly or close to the blade of the wiper, and energizing the heating wire directly in the blade to energize it when necessary, or to maintain the form conventionally provided in the blade. Elastic metal plate wire (metal fitting) is replaced with a heating wire, or in the winter wiper, the heating wire is placed on a part of the fixed cover that wraps around the blade support device. The heating wire is formed in a U shape and is detachably attached to the blade supporting member, or the energizing heating wire is provided on the side wall portion of the open type cover that can be detached so as to cover the blade supporting member from the back side. Or, all or part of the blade or blade supporting device itself is composed of an electric heating material, and when necessary, each is energized to release the freeze or deposit. The is obtained by allowing melting removed.

[0005]

[Action]

 With the heat generating wiper of the present invention configured in this way, the blades and blade support device generate heat when energized to remove freezing and snow accumulation, which makes it safe and secure to start in cold regions and run during snowfall. Can be

[0006]

【Example】

 The present invention will be described in detail below with reference to the drawings. However, the drawings show an example of a specific implementation of the present invention, and the present invention is not limited to the illustrated examples, and a part of the invention will be described in accordance with the meaning described below. Even if the design is changed or a part of the configuration is changed, the same operation can be performed.

FIG. 1 (side view) shows an example of a typical windshield wiper, in which the wiper 1 pivotally supports an arm attachment 2a at approximately the center in the longitudinal direction thereof. The arm attachment 2 is detachably attached to the tip end side of a wiper arm 4 connected to a drive device (not shown). Further, the wiper 1 forms a support frame 2, and the blade support arms 3 are pivotally supported on both ends of the support frame 2. The blade 5 made of an elastic material such as rubber or synthetic rubber is used as a blade sub-support that is pivotally supported at the outer ends of the blade support arms 3 and 3 and the substantially central portion inside the blade support arms 3 and 3. The arms 3a, 3a are slidably supported by both ends thereof, and the tip side (left side in the drawing) of the arms 3a, 3a is engaged with the groove formed in the wiper 5 by the tip portion of the support arm 3 and It is designed to prevent sliding off.

On the other hand, the blade 5 has a base portion 5c and two outer grooves 5a and 5b on both sides thereof along the length direction, as shown in FIG. 2 (a sectional view in the direction of the arrow along the cutting line AA in FIG. 1). Formed, and a sharp water scraping portion 5d is formed on the lower side. Further, concave grooves are formed on both sides of the base portion 5c, and elastic plate wires (metal fittings) 6 made of steel are inserted into the concave grooves to urge the wiper to always be held linearly. When the wiper is pressed against the glass surface, the metal fitting 6 is deformed to keep the blade 5 in contact with the glass surface.

In order to apply the present invention to such a wiper, as shown in FIG. 2, an electric heating wire 7 such as a nichrome wire is embedded in the root of the water scraping portion 5d of the blade 5. It is preferable that the embedding is performed at the same time when the blade is formed, but the connection heating hole 7 is inserted after the connecting hole is formed or the U-shaped bent pipe is embedded. You may comprise. Further, the blade itself or the blade supporting member may be wholly or partly formed by a conventionally known electric heating member (for example, a material in which metal powder or carbon powder is mixed). Further, FIG. 2 shows the energization heating wires 7 arranged side by side, but they may be arranged vertically or may be composed of one energization heating wire.

FIG. 3 (side view) is an enlarged view of a part of the tip of the blade 5. The tip grip 3b of the support arm 3 supports the base 5c of the blade 5 and the groove 5a. As shown in FIG. 4 (a plan view of FIG. 3), the grip portion 3b engages with a concave portion formed on the tip side of the blade to regulate the movement of the blade. The embedded electric heating wire 7 is embedded in a U-shape on the tip side as shown in FIG. It may be arranged vertically as shown in the cross-sectional view shown in the same manner as the above), or may be arranged substantially at the center thick portion of the blade 5 as shown in FIG. 5 if necessary.

Further, the metal fitting 6 may be formed by a U-shaped pipe having the same elasticity, and an electric heating wire may be inserted into the metal fitting. The blade can be used as it is, and the present invention can be satisfied without making a special blade. In order to do so, the metal fitting disposition grooves formed on both sides of the base 5c of the blade 5 may be connected at the tip of the blade.

FIG. 6 (side view) shows an example of a winter wiper. This winter wiper 1a is formed by gently covering the entire blade supporting device with an elastic coating cover 8 such as rubber. Only the chimney is exposed and blocked at the bottom. With the wiper 1a of the fixed type cover 8 as described above, snow accumulated by the fan can be removed, but no measures are taken against freezing. In addition, snow may freeze around the fixed cover 8. Therefore, in the present invention, as shown in FIG. 7 (a cross-sectional view in the direction of the arrow along the cutting line BB in FIG. 6), the electric heating wire 7 is embedded in the root portion of the blade 5 or the metal fitting 6 as described above. Is replaced with an electric heating wire, and if necessary, the electric heating wire 7 is arranged along the cover 8 as shown in FIG. 8 (a sectional view similar to FIG. 7). Although the figure shows the heating wire 7 arranged inside the cover, it may be arranged outside, and the energization heating wire 7 may be embedded by forming the tip side in a U shape. It is arranged by adhering or joining by winding.

FIG. 9 (conceptual diagram) shows an embodiment of the present invention which can be easily applied to a conventional wiper. Particularly, the current-carrying heating wire 7 is preferably formed by a U-shaped pipe having a large diameter. It is recommended that an electric heating wire be arranged inside the U-shaped pipe and that it be elastic. The heating wire is provided with mounting pieces 7c, 7c and 7d at the front and rear ends and the central portion thereof, the mounting piece 7c being on the top of the sub supporting arms 3a and 3a, and the mounting piece 7d being on the side surface of the wiper supporting frame 2. Each is installed and configured. With this structure, it is extremely easy to attach to a conventional wiper, and it is convenient because it is detachable. In the figure, 7a indicates an energizing code. Although not shown, a tape-shaped energization heat-generating member may be used, and this may be attached to the support frame 2 of the wiper or arranged so as to be wound around the support frame.

FIG. 10 (partially cutaway side view) shows another embodiment of the present invention in which an electric heating wire is provided on a detachable wiper cover 9. That is, as shown in FIG. 11 (plan view of FIG. 10), FIG. 12 (only the wiper in the bottom view of FIG. 11), and FIG. 13 (cross-sectional view in the direction of the arrow along the section line C-C of FIG. 10), The wiper cover 9 is molded from a material such as synthetic rubber or synthetic resin having elasticity, and as shown in FIG. 13, a top portion for elastically enclosing the support frame 2 of the wiper is formed, and the central portion thereof is formed. A hole 9b through which the arm attachment 2a is inserted is formed in the portion. Both side walls of the cover 9 are formed so as to be squeezed downward, and the lower end side is opened so as to surround the base portion of the wiper blade 5 and the holding portion 3b of the support arm with a slight gap, and the water scraping portion 5d of the blade is opened. Expose. A front wall 6c is formed on the front end side of the opening of the cover 9, and the rear end side of the cover 9 is open, and its attachment is attached to the wiper support frame 2 with screws 9a and 9a. If necessary, the screws 9a may be eliminated and the cover 9 may be elastically attached to the support frame. On the other hand, the electric heating wire 7 provided on the wiper cover 9 is preferably provided on the inner side as shown in FIG. 13 by bending the tip end side into a U shape, but may be provided on the outer side if necessary.

According to the present invention having the above-described structure, the blade or the blade supporting device generates heat when energized to release the freezing of the blade and prevent the freezing. Moreover, even if snow accumulates, it can be melted and removed. In order to energize the heating wiper according to the present invention, the battery of the vehicle is connected through switches, and these switches automatically detect the outside temperature and interlock with the start key switch of the vehicle, or independently. Be able to operate and operate freely. Although not shown, the wiper support device, the blade support member, or a part of the blade may be provided with a thermostat to prevent overheating.

[0016]

[Effect of device]

 With this structure, the heat generating wiper of the present invention can prevent freezing of the wiper and also can remove snow accumulation, so that the vehicle can be started quickly in cold regions. In addition, when traveling during snowfall, snow may accumulate on the wiper and obstruct visibility, but the energization can melt and remove the accumulated snow, which ensures visibility and enables safe traveling. Further, the present invention can be configured easily and can be provided at low cost, which can contribute to the maintenance and management of vehicles in cold regions.

[Brief description of drawings]

FIG. 1 is a side view showing an example of a wiper.

2 is a cross-sectional view in the direction of the arrow along the section line AA in FIG.

3 is an enlarged side view of the tip portion of FIG.

FIG. 4 is a plan view of FIG.

5 is a cross-sectional view similar to FIG. 2 showing another structural example.

FIG. 6 is a partially cutaway side view of the winter wiper.

7 is a sectional view taken along the line BB of FIG. 6 in the direction of the arrow.

FIG. 8 is a cross-sectional view similar to FIG. 7, showing another configuration example.

FIG. 9 is a schematic diagram of the configuration.

FIG. 10 is a partially cutaway side view showing another embodiment of the present invention.

11 is a plan view of FIG.

FIG. 12 is a bottom view of FIG. 10 with the wiper support device omitted and only the cover shown.

13 is a cross-sectional view in the direction of the arrow along the section line CC of FIG.

[Explanation of symbols]

 1 Wiper 2 Wiper support frame 3 Blade support arm 4 Wiper arm 5 Blade 6 Metal fitting 7 Electric heating wire (insulated if necessary) 8 Fixed cover 9 Detachable cover

Claims (8)

[Scope of utility model registration request] 1. A fan-type wiper provided on the glass surfaces of front and rear windows of a vehicle, which is directly or close to a wiper blade made of an elastic material such as rubber or synthetic rubber constituting the wiper, or a blade supporting member. An exothermic wiper, which is configured by arranging an electric heating wire (which is insulated if necessary). 2. The heat-generating wiper according to claim 1, wherein the current-generating heating wire arranged in the wiper is formed by embedding the current-heating wire in a blade. 3. The heat-generating wire as set forth in claim 1, wherein the conductive heating wire arranged on the wiper is constructed by replacing the elastic metal fitting provided along the length direction of the blade with the conductive heating wire. Wiper. 4. The heat generating wiper according to claim 1, wherein the electric heating wire provided near the wiper blade is attached to a part of a cover provided so as to cover and cover the entire blade supporting member. 5. The heat generating wiper according to claim 1, wherein the electric heating wire arranged on the wiper is detachably attached to the support member supporting the wiper blade directly or by winding the wiper blade. 6. An electric heating wire arranged on the wiper is provided on both side walls of an open type cover attached so as to cover the entire supporting device for supporting the wiper blade from the back side. Fever wiper. 7. The support device itself for supporting the wiper blade is constructed such that the whole or a part of the support device itself is made of an electric heating material to transmit heat to the blade.
Exothermic wiper described. 8. The heat-generating wiper according to claim 1, wherein the blade itself is made of an electrically-conductive heat-generating material.