JP4337765B2 - Wiper blade - Google Patents

Description

  The present invention relates to a wiper blade including a spoiler attached to a birdie bra and a blade held by the spoiler.

  Conventionally, a wiper blade for a vehicle is known (see Patent Document 1).

The wiper blade includes a blade member provided at the tip of the wiper arm, a rubber wiper member, an inner holder and an outer holder that support the wiper member, and a plurality of connecting members that connect the outer holder and the blade member. And a waterproof cover member.
Japanese Utility Model Publication No. 3-5548

  As described above, the conventional wiper blade has many problems such as a large number of parts, a large number of assembly steps, and troublesome assembly.

  An object of the present invention is to provide a wiper blade which has a small number of parts and can be easily assembled.

In order to achieve the above object, the invention of claim 1 is characterized in that a long vertebra attached to a wiper arm and extending in the left-right direction, and a cylindrical shape having one end opened and covering both left and right portions of the vertebra. A wiper blade comprising first and second spoilers to be mounted and refills held by the first and second spoilers, the refill having a wiping portion and a head formed on the wiping portion. Because
The first and second spoilers are each provided with a planar first rib extending along the longitudinal direction,
The refill has a flange formed along the longitudinal direction formed in the upper part of the wiping portion,
The refill and one end of the vertebra are inserted through the opening of the first spoiler, and the first spoiler is attached to the vertebra.
The refill and the other end of the vertebra are inserted from the opening of the second spoiler, and the second spoiler is attached to the vertebra.
The refill is held by the first and second spoilers with the lower surface of the flange joined to the upper surfaces of the first ribs of the first and second spoilers .

The invention of claim 2 is the wiper blade according to claim 1, wherein a second rib extending along the longitudinal direction is provided at a position facing the first rib, and the flange is formed by the first and second ribs. It is characterized by being sandwiched.

A third aspect of the invention is the wiper blade according to the first or second aspect, wherein a projecting portion projecting laterally is provided at a central portion of the flange to provide waterproofing between the first and second spoilers. It is characterized by figure.

  According to the present invention, the number of parts of the wiper blade is small, and the wiper blade can be easily assembled.

  Hereinafter, an embodiment as an embodiment of a wiper blade according to the present invention will be described with reference to the drawings.

  The winter wiper blade 1 shown in FIG. 1 and FIG. 2 is attached to a wiper arm (not shown) and extends to the left and right sides of a long summer birdie bra 30 and the left and right sides of the birdie bra 30. A pair of resin spoilers 70A, 70B, a rubber refill (blade) 20 held by the spoilers 70A, 70B, a cover member 9, a pair of auxiliary bar dibras 40, 40, and the like. Has been.

  As shown in FIG. 3A, the refill 20 has a wiping portion 21, a neck portion 22, and a head portion 23. The upper portion of the wiping portion 21 protrudes laterally and extends along the longitudinal direction. A pair of flanges 24, 24 are formed. Further, grooves 25 and 25 extending in the longitudinal direction are formed on both side portions of the head portion 23, and auxiliary bar dibras 40 and 40 are fitted in the grooves 25 and 25.

  Further, at the center position of the flanges 24 and 24 (with respect to the longitudinal direction), flat plate-like projecting portions 26 and 26 projecting sideways are continuously formed.

  The birdie bra 30 includes a metal birdiebra body 31, a plurality of holder members 6 attached to the birdiebra body 31 at predetermined intervals, and a clip base member 8 attached to the center of the birdiebra body 31. Have.

  As shown in FIG. 3B, the holder member 6 has a pair of holding claws 6 </ b> A and 6 </ b> A that are locked to the lower surface of the head portion 23 of the refill 20.

  As shown in FIGS. 2 and 3A, the spoiler (first spoiler) 70A is formed from a cylindrical body 74A having an upper wall portion 71A, side wall portions 72A, 72A, and a bottom wall portion (first rib) 73A. In addition, a slit 75A having a predetermined width is formed in the bottom wall portion 73A along the longitudinal direction. One end of the spoiler 70A is opened, and the other end is closed by an end wall portion 76A formed integrally and continuously with the cylindrical body 74A as shown in FIG. For this reason, the accumulation of snow during snowfall can be prevented.

  Further, the bottom wall portion 73A of the spoiler 70A is joined to the lower surfaces (in FIG. 3A) of the flanges 24, 24 of the refill 20.

  Since the spoiler (second spoiler) 70B has the same configuration as the spoiler 70A, the description thereof will be omitted.

  As shown in FIGS. 4 and 5, the cover member 9 engages with the covering wall portions 9 a and 9 a that cover the clip base member 8, and the flanges 24 and 24 of the refill 20 and the lower surfaces of the protruding portions 26 and 26. As shown in FIG. 4, an opening 9 c is formed in the upper part of the cover member 9.

  A wiper arm (not shown) is swingably connected to the clip base member 8 through the opening 9c. The ends of the spoilers 70A and 70B on the center side are covered with the cover member 9 and pressed and held.

  As shown in FIGS. 6 to 10, the clip base member 8 includes a pair of rectangular plate-like standing wall portions 11. As shown in FIGS. 7, 8, and 10, through holes 13 through which the rivet member 12 passes are formed in the pair of standing wall portions 11. The rivet member 12 has a stepped configuration having a small diameter portion 12a, a large diameter portion 12b, and a head portion 12c as shown in FIG.

  The pair of upright wall portions 11, 11 are integrally formed with a connecting piece portion 14 that connects the pair of upright wall portions 11, 11. The connecting piece 14 is a lateral piece extending in the transverse direction in a state of being fixed to the extending piece 14a extending from one end of the pair of standing wall parts 11 and 11 and the vertebra body 31. Part 14b.

  Bending piece portions 15a and 15a are formed below the pair of standing wall portions 11 and 11 with a gap in the extending direction of the pair of standing wall portions 11 and 11, respectively. The bent piece portions 15 a and 15 a are adapted to engage with the lower surface 31 a of the vertebra body 31.

  A pair of contact piece parts 16 and 16 are formed on the pair of standing wall parts 11 and 11, respectively.

  The pair of abutting pieces 16 and 16 abut on the upper surface 31b (in FIG. 10) of the vertebra body 31 and cooperate with the pair of opposing pieces 15 and 15 to hold the space 3c of the vertebra 30 (see FIG. 7). ) Is formed.

  The pair of upright wall portions 11 and 11 are so-called C-shaped in which the distance between the end portions on the far side is larger than the distance on the one side where the connecting piece portion 14 is formed in a state before being attached to the vertebra 30. It is shaped like a letter.

  In the clip base member 8, the rivet member 12 is inserted into the through holes 13 of the pair of standing wall portions 11 and 11, and the small diameter portion 12a is crushed using caulking means so that the pair of standing wall portions 11 and 11 are substantially formed. Parallel. At the same time, the upright wall portions 11 and 11 face each other substantially in parallel, so that the vertebra body 31 is sandwiched in the holding space 3c between the pair of contact piece portions 16 and 16 and the pair of opposed piece portions 15 and 15. As a result, the clip base member 8 is fixed to the vertebra body 31. The pair of abutting piece portions 16 and 16 also serve as a distance maintaining member that cooperates with the connecting piece portion 14 to maintain the opposed distance between the pair of upright wall portions 11 and 11 substantially in parallel.

  Here, a wiper arm engagement member (not shown) is attached to the large-diameter portion 12b of the rivet member 12, and the wiper arm is engaged with the wiper arm engagement member.

  Next, how to assemble the wiper blade 1 will be described.

  First, the holder member 6 and the clip base member 8 are attached to the vertebra body 31 in advance. Then, the auxiliary bar dibras 40 and 40 are inserted into the grooves 25 and 25 of the refill 20.

  The refill 20 is inserted into the holder member 6 of the vertebra body 31 shown in FIG. 11, and the refill 20 is attached to the vertebra body 31 as shown in FIG.

  Next, one end of the vertebra body 31 and the refill 20 is inserted into the opening of one end of the spoiler 70A, and the wiping portion 21 of the refill 20 is inserted into the slit 75A of the spoiler 70A, and the flanges 24, 24 of the refill 20 are inserted. It is made to contact | abut to the upper surface of the bottom wall part 73A of spoiler 70A. Then, the spoiler 70A is pushed in the direction of the arrow P1 until the opening end of the spoiler 70A hits the protruding portion 26 of the refill 20, and the spoiler 70A is attached to one side (right side in FIG. 12) of the vertebra main body 31 and the refill 20. .

  By spoiling the spoiler 70A against the protrusion 26 of the refill 20, the spoiler 70A can be positioned.

  By attaching the spoiler 70A, the thickness of the holder member 6 attached to the vertebra main body 31 is thin, so that the upper wall portion 71A of the spoiler 70A contacts the vertebra main body 31 as shown in FIG. In addition, an adhesive is applied in advance to the lower surfaces of the flanges 24, 24 of the refill 20, so that the flanges 24, 24 of the refill 20 and the bottom wall portion 73A of the spoiler 70A are bonded. As a result, the refill 20 is held in the spoiler 70A.

  Further, since the flanges 24, 24 and the bottom wall portion 73A are formed in a planar shape, the adhesiveness thereof can be improved.

  Similarly, the other ends of the vertebra main body 31 and the refill 20 are inserted into the opening of one end of the spoiler 70B, and the spoiler 70B is attached to one side (left side in FIG. 12) of the vertebra main body 31 and the refill 20.

  Then, the clip base member 8 is covered with the cover member 9 and attached to the central portion of the birdiebra main body 31, and the end portions on the central portion side of the spoilers 70A and 70B, the projecting portions 26 and 26 of the refill 20, and the flange 24. , 24 are covered and held by the cover member 9. As a result, waterproofing in the spoilers 70A and 70B is performed. Moreover, since the protrusions 26 and 26 are disposed between the spoilers 70A and 70B, the gap between the spoilers 70A and 70B is closed, and the waterproof effect can be enhanced.

  As described above, the wiper blade 1 includes the birdiebra 30, the pair of spoilers 70A and 70B attached to the birdiebra 30, the refill 20 held by the spoilers 70A and 70B, the cover member 9, Since it is composed of a pair of auxiliary bar dibras 40, 40, the number of parts is small, and spoilers 70A, 70B are inserted and attached to both ends of the vertebra main body 31 and the refill 20, and the clip base member 8 is covered. Since it is only covered with the member 9 and attached to the birdie bra main body 31, the assembly can be performed easily and the number of assembly steps can be reduced.

  Further, since spoilers 70A and 70B may be inserted and attached from both ends of the vertebra main body 31 and the refill 20, the summer vertebra main body 31 can be diverted. Moreover, since the primary, secondary lever, and yoke are not used as in the prior art, the anti-freezing property is excellent.

  FIG. 13 shows another example of the wiper blade 100. The wiper blade 100 is formed with ribs (second ribs) 101, 101 on spoilers 70A, 70B, and the ribs 101, 101 and the bottom wall. The flanges 24, 24 of the refill 20 are sandwiched between the portion 73A.

It is the perspective view which showed the wiper blade of the Example concerning this invention. It is the disassembled perspective view which showed the structure of the wiper blade shown in FIG. It is sectional drawing of the wiper blade shown in FIG. It is sectional drawing in the other position of the wiper blade shown in FIG. It is sectional drawing which showed the edge part of a spoiler. It is a perspective view of the clip base cover member shown in FIG. It is sectional drawing of the clip cover member shown in FIG. It is a top view of the clip base member shown in FIG. It is sectional drawing which follows the BB line of FIG. It is a longitudinal cross-sectional view of the clip base member shown in FIG. FIG. 4 is a partially enlarged perspective view showing a state in which a clip base member is fixed to the birdie bra shown in FIG. 3. It is a partial expansion perspective view which shows the state before a clip base member is fixed to the birdie bra shown in FIG. It is sectional drawing which showed the state which attached the refill to the vertebra body. It is explanatory drawing which showed how to assemble a wiper blade. It is sectional drawing which showed the structure of the wiper blade of another example.

Explanation of symbols

20 Refill 30 Vertibra 31 Vertibra body 70A Spoiler (1st spoiler)
70B spoiler (second spoiler)

Claims (3)

A long vertebra attached to the wiper arm and extending in the left-right direction ; first and second spoilers that are formed in a cylindrical shape with one end open and are mounted to cover the left and right sides of the vertebra; A wiper blade having a wiping portion and a head formed on the wiping portion, comprising a refill held by a second spoiler,
The first and second spoilers are each provided with a planar first rib extending along the longitudinal direction,
The refill has a flange formed along the longitudinal direction formed in the upper part of the wiping portion,
The refill and one end of the vertebra are inserted through the opening of the first spoiler, and the first spoiler is attached to the vertebra.
The refill and the other end of the vertebra are inserted from the opening of the second spoiler, and the second spoiler is attached to the vertebra.
The wiper blade is characterized in that the refill is held by the first and second spoilers with the lower surface of the flange joined to the upper surfaces of the first ribs of the first and second spoilers . The wiper blade according to claim 1 , wherein a second rib extending in the longitudinal direction is provided at a position facing the first rib, and the flange is sandwiched between the first and second ribs . The wiper blade according to claim 1 or 2 , wherein a projecting portion projecting sideways is provided at a central portion of the flange to achieve waterproofing between the first and second spoilers .

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