JP5576130B2 - Fixing member for blade rubber - Google Patents

Description

  The present invention relates to an improvement in a fixing member for holding a reinforcing member in a fixed state with respect to the blade rubber when shipping in a state where a blade rubber and a reinforcing member (so-called vertebra) are combined.

  Some wiper blades included in the wiper device include, for example, a support portion including a plurality of levers, a blade rubber supported by the support portion, and a reinforcing member (so-called vertebra) attached to the blade rubber. Here, the blade rubber is a long rubber member that is disposed along a surface to be wiped (for example, a glass surface of an automobile) and wipes the surface to be wiped when the wiper device is used. The vertebra is a long metal member that is disposed along both sides of the blade rubber to give the blade rubber appropriate rigidity.

  In such a wiper blade, the support member is relatively durable, whereas the blade rubber is a consumable part, and when wear or the like occurs, it needs to be replaced together with the vertebra. . In this case, the blade rubber and the reinforcing member are distributed in the market in a set state, but the reinforcing member is fixed to the blade rubber, and the blade rubber and the reinforcing member are held in a combined state. A fixing member is used. Such a fixing member is used when the replacement blade rubber and the vertebra are distributed, and is removed from the blade rubber and discarded when the blade rubber and the vertebra are attached to the support portion.

  FIG. 7 shows a state in which the vertebras 8 and 9 are fixed to the blade rubber 1 using such a conventional fixing member 100. 8 and 9 show the fixing member 101 in a state before use.

  As shown in the figure, the blade rubber 1 includes a main body 2 and a blade 3. Slits 4 and 5 extending along the longitudinal direction are formed on both side portions of the main body 2, and vertebras 8 and 9 are fitted into the slits 4 and 5, respectively.

  On the other hand, the fixing member 100 is a U-shaped member having a top surface portion 101 and side surface portions 102 and 103 on both sides. At the lower end of the side surface portion 102, a claw portion 104 having a square tip portion 104A is provided, while the side surface portion 103 is not particularly provided with a claw portion. Here, the angle φ2 between the side surface portion 103 having no claw portion and the top surface portion 101 is smaller than the angle φ1 between the side surface portion 102 having the claw portion 104 and the top surface portion 101 (smaller than 90 degrees). Angle).

  With such a configuration, the fixing member 100 is disposed so as to straddle the blade rubber 1, so that the vertebras 8 and 9 in the slits 4 and 5 are formed by the side surfaces 102 and 103 disposed on both sides of the blade rubber 1. The vertebras 8 and 9 are prevented from falling off. In this case, the fixing member 100 first arranges the claw portion 103A of the side surface portion 103 in the groove portion 6 formed below the slit 4 of the blade rubber 1, and then spreads the side surface portion 104 on the opposite side while spreading the blade. By being arranged along the side surface of the rubber 1, the blade 1 is attached to the blade rubber 1.

  In such a conventional fixing member 100, the side portions 102 and 103 of the fixing member 100 mounted on the blade rubber 1 are arranged on both sides of the blade rubber 1 in order to prevent the fixing member 100 from falling off the blade rubber 1. Thus, the fixing member 100 is fixed to the blade rubber 1 by the frictional force between the side surface portions 102 and 103 and the blade rubber 1. Therefore, in the fixing member 100 before use, the angle φ2 between the top surface portion 101 and the side surface portion 103 is an acute angle, and the interval between the side surface portions 102 and 103 is narrowed. Sometimes, the side portions 102 and 103 are pressed against the blade rubber 1.

For this reason, when attaching the fixing member 100 to the blade rubber 1, it is necessary to increase the distance between the side surfaces 102 and 103 to an appropriate distance. Moreover, in order for the side parts 102 and 103 to be appropriately pressed on both sides of the blade rubber 1, it is necessary to form the fixing member 100 with a relatively hard material. Therefore, in the mounting work, a strong force is required to spread the fixing member 100, which causes a reduction in work efficiency.
In order to deal with such problems, in the conventional fixing member 100, the side surface portion 103 has a shape in which the thickness increases toward the lower end 103A, and the angle φ2 between the top surface portion 101 and the side surface portion 103 is reduced. The idea to do was made. However, such a correspondence still requires an operation of greatly expanding the side surface portion 103, and the fixing member 100 has to be formed of a relatively hard material.

  The present invention has been made paying attention to such problems, and in the fixing member for holding the blade rubber and the reinforcing member (vertebra) in a combined state, the mounting operation of the fixing member to the blade rubber is performed. It is an object of the present invention to provide a fixing member that can be facilitated and can significantly improve working efficiency.

  In the present invention, in the fixing member for holding the reinforcing member arranged along the blade rubber and giving the blade rubber appropriate rigidity in a state of being fixed to the blade rubber, the top surface portion and the top surface portion And a pair of claw portions provided on each of the pair of side surface portions.

  The reinforcing member is accommodated in a slit formed on a side surface of the blade rubber, and when the fixing member is attached to the blade rubber, the side surface portion is disposed along a common surface of the blade rubber, and While the reinforcing member is held in the slit, the blade rubber includes a groove portion adjacent to the slit, and when the fixing member is mounted on the blade rubber, the claw portion is disposed in the groove portion. It may be.

The claw portion may be provided at an end portion of the side surface portion opposite to the top surface portion.
At least one tip portion of the pair of claw portions may have a shape having no corner portion.
Both tip portions of the pair of claw portions may have a shape without a corner portion.

The shape having no corner may be a circular arc shape in cross section.
One of the pair of side surface portions is provided with a claw portion having a tip portion having a shape not having a corner portion, and the other of the pair of side surface portions is provided with a claw portion having a tip portion having a shape having a corner portion. It may be provided.

  According to the present invention, the fixing member (for example, the fixing members 10 and 20) has a pair of claw portions (for example, the claw portions 14 and 14) on each of the pair of side surface portions (for example, the side surface portions 12 and 13 or the side surface portions 22 and 23). 15 or the claw portions 24 and 25), when the fixing member is attached to the blade rubber (for example, the blade rubber 1), the pair of claw portions are formed on the both sides of the blade rubber. By engaging with a predetermined engaging portion such as the groove portions 6 and 7), the blade rubber is appropriately prevented from falling off. Therefore, unlike the conventional fixing member, it is not necessary to make the blade rubber tightly tightened on both side surfaces of the fixing member, so that the top surface portion (for example, the top surface portions 11 and 21) and the side surface of the fixing member in a state before use are used. The angle between the two parts (for example, the angles θ1 and θ2) can be set to a large angle close to a right angle, so that it is not necessary to greatly spread both side portions outward during the mounting operation, and the fixing member to the blade rubber The mounting operation can be easily performed with a light force. In addition, the fixing member can be formed of a relatively soft material, so that the range of material selection is widened. At the time of removing the fixing member, the fixing member can be easily deformed, and the removal work is facilitated. In addition, since the interval between the side surfaces of the fixing member before mounting is wide, even if the angle at the time of assembling the fixing member to the blade rubber deviates from the correct angle, it can be assembled as it is. Assembly work is facilitated.

  Further, if the tip of at least one nail part (for example, the tip parts 14A and 15A or the tip part 25A) has a shape that does not have a corner (for example, a cross-sectional arc shape), The attachment work is not hindered by the claw part such that the tip of the part is caught by the slits (for example, slits 4 and 5) of the blade rubber, and the attachment work can be performed smoothly.

  Further, one of the pair of side surface portions (for example, the side surface portion 23) is provided with a claw portion (for example, the claw portion 25) having a tip portion (for example, the tip portion 25A) having no corner portion, while the pair of side surface portions. If a claw part (for example, claw part 24) having a tip part (for example, claw part 24A) having a corner part is provided on the other side (for example, side part 22), the tip part having a corner part is provided. In the side surface on the side where the claw portion is provided, the engagement strength is increased. On the other hand, when the fixing member is mounted, the claw portion having a square tip portion is first engaged with the blade rubber, and then the cross-section arc shape. By engaging the claw portion having the tip portion, smooth mounting work can be prevented from being hindered.

It is a perspective view which shows the fixing member in the 1st Embodiment of this invention. It is a front view which similarly shows a fixing member. It is a perspective view which shows the state in which the fixing member was similarly mounted | worn with the blade rubber. It is sectional drawing which similarly shows the state with which the fixing member was mounted | worn with the blade rubber. It is a perspective view which shows the fixing member in the 2nd Embodiment of this invention. It is a front view which similarly shows a fixing member. It is sectional drawing which shows the state with which the conventional fixing member was mounted | worn with the blade rubber. It is a perspective view of the conventional fixing member. It is a front view of the conventional fixing member.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
1 and 2 show a fixing member 10 according to the first embodiment of the present invention. As shown in the drawing, the fixing member 10 is a U-shaped member in cross section, and includes a top surface portion 11 and a pair of side surface portions 12 and 13 extending from the left and right ends of the top surface portion 11. The angle θ1 between the top surface portion 11 and the side surface portion 12 and the angle θ2 between the top surface portion 11 and the side surface 13 are slightly smaller than 90 degrees.

  Claw portions 14 and 15 are provided at the lower ends of the side surface portions 12 and 13 (the end portion opposite to the top surface portion 11), respectively. The pair of claw portions 14 and 15 extend from the side surface portions 12 and 13 to the inside direction (the direction of the opposite side surfaces 13 and 12) at substantially right angles. Further, the tip portions 14A and 15A of the claw portions 14 and 15 have a gentle shape (in the present embodiment, an arc cross-sectional shape) that does not have a corner portion.

  3 and 4 show a state in which the fixing member 10 is attached to the blade rubber 1 with the vertebras 8 and 9 attached thereto. FIG. 3 shows a state in which a part of the longitudinal direction of the blade rubber 1 and the vertebras 8 and 9 is cut off. It is a long member.

  The blade rubber 1 is a long rubber member, and includes an upper body portion 2 and a blade portion 4 provided below the body portion 2 as shown in the figure. Slits 4 and 5 extending in the longitudinal direction of the blade rubber 1 are formed on both side surfaces of the main body 2. In these slits 4 and 5, vertebras 8 and 9 are fitted, respectively. Further, groove portions 6 and 7 extending in the longitudinal direction of the blade rubber 1 are formed below the slits 4 and 5. When the wiper blade is configured using the blade rubber 1, the blade rubber 1 is supported by a support portion (for example, a plurality of levers). In this case, the groove portions 6 and 7 of the wiper blade 1 are engaged with the support portion. Means (for example, an engaging claw provided at the end of the lever) are engaged.

  The vertebras 8 and 9 are long metallic members having substantially the same length as the blade rubber 1, and are provided along both sides of the blade rubber 1 to give an appropriate rigidity to the blade rubber 1. In this manner, the blade portion 3 of the blade rubber 1 is pressed against the surface to be wiped with an appropriate force during the operation of the wiper device.

The fixing member 10 is disposed so as to straddle the main body 2 from the upper side of the blade rubber 1. As a result, the both side surfaces 12 and 13 of the fixing member 10 are arranged along both sides of the main body 2, and the claw portions 14 and 15 of the side surfaces 12 and 13 enter the insides of the grooves 6 and 7, respectively. Become. In addition, the angles θ1 and θ2 between the top surface portion 11 and the side surface portions 12 and 13 are slightly expanded to approximately a right angle.
As described above, the side surfaces 12 and 13 of the fixing member 10 are arranged on both sides of the main body 2, so that the side surfaces 12 and 13 hold the vertebras 8 and 9 in the state of being accommodated in the slits 4 and 5, respectively. Then, the vertebras 8 and 9 are prevented from falling off the blade rubber 1. Although only one fixing member 10 is shown in the drawing, actually, a plurality of (for example, two) fixing members 10 are used for one blade rubber 1, and the blade rubber 1 The attachment of the vertical bars 8 and 9 is surely prevented by being attached to the main points in the longitudinal direction.

  As described above, according to the fixing member 10 of the present embodiment, when the fixing member 10 is attached to the blade rubber 1, the pair of claw portions 14 and 15 provided on the side surface portions 12 and 13 on both sides are respectively Since it is disposed in the groove portions 6 and 7 of the blade rubber 1, when the fixing member 10 is about to be detached from the blade rubber 1, the claw portions 14 and 15 are located on the sides of the groove portions 6 and 7 on both sides of the blade rubber 1 ( In order to prevent the fixing member 10 from coming off by contacting the upper surface), the fixing member 10 is appropriately prevented from falling off. Therefore, since it is not necessary to make the main body 2 tightly tightened by the side surfaces 12 and 13 in order to prevent the fixing member 10 from falling off, the top surface portion 11 and the side surface portions 12 and 13 of the fixing member 10 in a state before use. The angles θ1 and θ2 between the two can be set to a large angle close to a right angle. Therefore, it is not necessary to greatly spread the both side surface portions 12 and 13 outward during the mounting operation, and the mounting operation of the fixing member 10 to the blade rubber 1 can be easily performed with a light force.

In addition, since it is not necessary to press the both side portions 12 and 13 of the fixing member 10 against both side surfaces of the blade rubber 1 with a strong force, the fixing member 10 can be formed of a relatively soft material, and the range of material selection is wide. In addition to expanding, when the fixing member 10 is removed, the fixing member 10 can be easily deformed, and the removal work is facilitated.
Moreover, since the space | interval of the lower end part of the side parts 12 and 13 is wide, even if the angle at the time of the assembly | attachment of the fixing member 10 with respect to the blade rubber 1 shifts | deviates from the correct angle, it can assemble | attach as it is in this point. However, the assembly work is facilitated.

  Further, the tip portions 14A and 15A of the claw portions 14 and 15 do not have corner portions and have a rounded shape (a cross-sectional arc shape). The mounting operation can be performed smoothly without hindering the mounting operation by the claw portions 14 and 15 such that 14A and 15A are caught in the slits 4 and 5 of the blade rubber 1.

  5 and 6 show a fixing member 20 according to the second embodiment of the present invention. The fixing member 20 according to the present embodiment is different from the fixing member 10 according to the first embodiment only in that the tip of the claw portion provided on one side surface portion has a square pointed shape. Is. More specifically, the fixing member 20 includes a top surface portion 11, side surface portions 22 and 23, and claw portions 24 and 25 provided at the lower ends of the side surface portions 22 and 23. The tip portion 25A of one claw portion 25 has a circular arc shape in the same manner as the tip portions 14A and 15A of the claw portions 14 and 15 of the first embodiment, whereas the other claw portion 24 has The tip portion 24A has a square-pointed shape (a shape having a corner). Thus, the engagement strength with respect to the groove part of the blade rubber 1 of the nail | claw part 24 is raised by making front-end | tip part 24A of the nail | claw part 24 into a square shape. On the other hand, the tip portion 25A of the other claw portion 25 has a circular arc shape in cross section. Therefore, when the fixing member 20 is mounted, the claw portion 24 of the one side surface portion 22 is first engaged with the groove portion of the blade rubber 1. Then, if the claw portion 25 of the other side surface portion 23 is engaged with the groove portion of the blade rubber 1, the smooth mounting operation is not hindered.

  In addition, in each said embodiment, although the nail | claw part shall engage with the groove parts 6 and 7 of the blade rubber 1, this invention is not limited to such a form, A nail | claw part is not attached to the blade rubber 1. You may make it engage with another part.

DESCRIPTION OF SYMBOLS 1 Blade rubber 2 Body part 3 Blade part 4 Slit 5 Slit 6 Groove part 7 Groove part 8 Vertibra 9 Vertibra 10 Fixing member 11 Top surface part 12 Side part 13 Side part 14 Claw part 14A Claw part tip 15 Claw part 15A Claw part tip Part

Claims (1)

In a fixing member for holding a reinforcing member arranged along a blade rubber to give the blade rubber an appropriate rigidity, in a state of being fixed to the blade rubber,
The fixing member is a U-shaped member in cross section,
The top and
A pair of side surface portions extending from both sides of the top surface portion;
A pair of claw portions provided on each of the pair of side surface portions ,
When the fixing member is not attached to the blade rubber, the angle between the top surface portion and one side surface portion and the angle between the top surface portion and the other side surface portion are slightly smaller than 90 degrees. Is an angle,
The reinforcing member is accommodated in a slit formed on a side surface of the blade rubber, and when the fixing member is mounted on the blade rubber, the side surface portion is disposed along the side surface of the blade rubber and the reinforcing member is While holding the member in the slit, the blade rubber includes a groove portion adjacent to the slit, and when the fixing member is mounted on the blade rubber, the claw portion is disposed in the groove portion. ,
The claw portion is provided at an end portion of the side surface portion opposite to the top surface portion ,
Tip of the hand of the pair of the claw section may have a shape having no corners,
The shape having no corner is a circular arc shape in cross section ,
The other end portion of the pair of claw portions, a fixed member provided with shape having corners.

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