JPH086649Y2 - Rear wiper for vehicles with rear gate - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Use) The present invention relates to a rear wiper of a vehicle with a rear gate such as a hatchback vehicle or a one-box car.

(Prior Art) Conventionally, the rear door mounted on the opening / closing body of the rear gate
As a wiper, there is one having a structure as shown in FIG. A wiper body including a blade 2, an arm 3 and a pivot shaft 4 is attached to the glass 1a of the opening / closing body 1, and a drive unit including a drive motor 5 is also attached to the glass 1a. Reference numeral 6 is a cover that covers the drive unit. The drive unit is connected to a power source 7 provided on the side of the structure 8 excluding the opening / closing body 1 and drives the wiper body. FIG. 7 is an enlarged view of the rear wiper mounting portion, in which the pivot shaft 4 is mounted on the glass 1a with bolts 4a, nuts 4b, and sealing material 4c.

However, in such a configuration, since a heavy part such as the drive motor 5 is attached to the opening / closing body 1, the hinge part (not shown) of the opening / closing body 1, the main body of the opening / closing body 1, the structure 8, or the like. Needs measures to reinforce the strength. Further, there is a problem that an energy supply device for sending electricity, air, etc. to the drive unit on the side of the opening / closing body becomes complicated.

(Problems to be solved by the invention) In order to solve the above problems, the present invention is directed to a vehicle with a rear gate, in which a wiper drive unit is attached to a structure side other than an opening / closing body to which a wiper body is attached. For the purpose of provision.

(Means for Solving the Problem) The above-mentioned object is to provide a collar 12 fixed to the opening / closing body 1 of the rear gate, a protrusion that is rotatably inserted into a hole of the collar 12, and a collar 12 of the collar 12. A pivot shaft 11 to which a wiper body is attached, which has an end surface and a flange surface that can engage with a serration or a key and a key groove, a seat 13 fixed to the protruding portion of the pivot shaft 11, and the collar 12. A coil spring 14 that is disposed between the opening and the closing body 1 and biases the flange surface of the pivot shaft 11 inwardly so as to engage with the collar 12;
It is drivably attached to a structure side of the vehicle other than the opening / closing body 1, and when the opening / closing body 1 is closed, the pivot shaft 11 is engaged and connected substantially coaxially with the tip of the protruding portion of the pivot shaft 11, and the pivot This is achieved by a rear wiper of a vehicle with a rear gate, characterized in that the rear wiper of the vehicle with a rear gate is provided with a drive shaft 16 for pushing the protruding portion of the shaft 11 in the outward direction to release the meshing between the flange surface and the collar 12.

(Operation) In the rear wiper having the above-described configuration, when the opening / closing body of the rear gate is closed, the clutch mechanism of the joint portion is attached to the pivot shaft of the wiper body attached to the opening / closing body side and the structure side. The drive shaft of the drive unit is connected, and by this connection, the lock mechanism of the pivot shaft is released, and the rear wiper is in an operable state. When the opening / closing body of the rear gate is opened, the clutch mechanism is disengaged, and at the same time, the lock mechanism of the pivot shaft operates to lock the rear wiper.

(Embodiment) The present invention will be described below with reference to the drawings illustrating an embodiment. FIG. 1 is a vertical cross-sectional view showing the mounting of a rear wiper according to the present invention, and shows a state in which an opening / closing body is opened.
At the base of the arm 3, the pivot shaft 11 is bolt 11
It is fixed by a and washer 11b. pivot·
The shaft 11 is rotatably inserted into the hole of the collar 12 fixed to the glass 1a, and the spring seat 13 is fixed to the protruding portion. A coil spring 14 is inserted between the spring seat 13 and the end surface of the collar 12. Therefore, when the opening / closing body 1 is open, the pivot shaft 11
Is urged inwardly of the glass 1a by the coil spring 14, and the flange surface of the pivot shaft 11 and the end surface of the collar 12 are joined. Wavy serrations 15 are formed on this joint surface as seen in FIG. 1 (b) showing a cross section taken along the line AA. Therefore, when the opening / closing body 1 is opened, the serration 15 engages the joint surface between the pivot shaft 11 and the collar 12, and the wiper body cannot rotate.

In the state where the opening / closing body 1 is closed, as shown in FIG. 2, the protruding end of the pivot shaft 11 of the wiper body is provided with a drive unit (not shown) on the structure 8 side except the opening / closing body 1 to which the wiper body is attached ( It is in contact with the end surface of the drive shaft 16 (not shown). A clutch mechanism including a key 17 and a key groove 18 is provided at this contact portion. This clutch mechanism is attached / detached according to the opening / closing operation of the opening / closing body 1.
Are engaged when closed. Therefore, when the opening / closing body 1 is closed, the torque of the drive shaft 16 can be transmitted to the pivot shaft 11. Further, when the clutch mechanism is engaged, the pivot shaft 11 is pushed back by the drive shaft 16, the coil spring 14 is compressed, and the joint surface between the pivot shaft 11 and the collar 12 is separated as illustrated. Become. Therefore, when the opening / closing body 1 is closed, the wiper body can be driven by the drive unit provided on the structure 8 side.

In the rear wiper having the above-described structure, when the opening / closing body 1 is closed and the drive unit provided on the structure 8 side operates, the torque of the drive shaft 16 is coupled to the pivot shaft by the clutch mechanism. 11 and the wiper body connected to the pivot shaft 11 is activated. On the other hand, when the opening / closing body 1 is opened while the vehicle is stopped, the clutch mechanism is disengaged, the pivot shaft 11 is pulled back inward of the glass 1a by the urging force of the coil spring 14, and the corrugated serration 15a of the collar 12a and the pivot 15a are pivoted. The wavy serrations 15b of the shaft 11 mesh with each other to prevent the wiper body from freely rotating.

The serrations 15 provided on the joint surface between the pivot shaft 11 and the collar 12 are the radial serrations shown in FIG. 3 (a), and the cross-shaped keys and keyways as shown in (b) and (c). Alternatively, the key may be composed of a single letter key and a key groove as shown in (d) and (e).

FIGS. 4 (a) and 4 (b) show a second embodiment of the rear wiper. In the second embodiment, the pivot shaft 11
The joint surface between the collar 12 and the collar 12 is brought into an engaged state by engagement of the key 21 provided on the pivot shaft 11 and the key groove 22 provided on the collar 12, not by serration. When the opening / closing body 1 is closed as shown in FIG. 5, the pivot shaft 11 is connected to the drive shaft 16 on the side of the structure 8 by the clutch mechanism, as in the first embodiment, and the glass 1a.
Is pushed out of. As a result, the key 21 and the key groove 22 are separated as shown, and the pivot shaft 11 coupled to the drive shaft 16 makes the wiper body rotatable.

(Effect of the Invention) This invention is a rear wiper for a vehicle with a rear gate having the above-described structure, so that the structure other than the opening / closing body to which the wiper body is attached is heavy like a drive motor. It is possible to attach a drive unit composed of components, and therefore, it is unnecessary to reinforce the opening / closing body hinge, the main body of the opening / closing body, and the like, and an energy supply device for electricity, air, etc. to the drive unit can be simplified. Furthermore, the problem of damage to the wiper arm and danger to the human body due to the movement of the wiper stopping when the pivot shaft is separated from the drive shaft is eliminated.

[Brief description of drawings]

FIG. 1 (a) is a longitudinal sectional view of a mounting portion of a wiper body of the first embodiment, FIG. 1 (b) is a sectional view taken along the line AA of FIG. 1 (a), and FIG. 2 is a first embodiment. FIG. 3 (a) to FIG. 3 (e) are side views and plan views of another embodiment of a joint surface, and FIG. 4 (a) is a second embodiment. Fig. 4 (b) is a sectional view taken along the line BB in Fig. 4 (a), and Fig. 5 is a sectional view showing the state in which the opening / closing body of the second embodiment is closed. Is. FIG. 6 is a side view showing the attachment of a conventional rear wiper, and FIG. 7 is an enlarged view of the main parts of FIG. 1 …… Opening / closing body 2 …… Blade 3 …… Arm 5 …… Drive motor 8 …… Structure 11 …… Pivot shaft 12 …… Color 15 …… Seration 16 …… Drive shaft 17,21 …… Key 18,22 …… Keyway

Claims (1)

[Scope of utility model registration request] 1. A collar 12 fixed to an opening / closing body 1 of a rear gate, a protruding portion rotatably inserted into a hole of the collar 12, an end surface of the collar 12, serrations or keys and a key groove. A pivot shaft 11 to which a wiper body is attached, which has a flange surface that can be meshed with each other, and a seat 13 fixed to the protrusion of the pivot shaft 11 and the collar 12, and the opening / closing A coil spring that biases the flange surface of the pivot shaft 11 inwardly so as to engage with the collar 12 when the body 1 is open.
14 and 14 are drivably attached to the structure side of the vehicle other than the opening / closing body 1, and when the opening / closing body 1 is closed, they are engaged and connected substantially coaxially with the tip of the protruding portion of the pivot shaft 11. A rear wiper for a vehicle with a rear gate, further comprising: a drive shaft 16 that pushes the protruding portion of the pivot shaft 11 outwardly to release the meshing between the flange surface and the collar 12.