JPH1037586A - Sliding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep the effect by a lubricant over a long period and regularly attain the smooth movement of a sliding body by forming a groove for holding the lubricant on a sliding surface slid with the guide surface of a guide member. SOLUTION: A groove 21 for holding a lubricant is formed on a sliding body surface slid on the guide surface 14 of a guide member 12 through the lubricant. When a sliding body 13 is slid along the guide member 12, lubricating effect can be sufficiently exhibited even if a large load acts on the sliding body 13 from above since a large quantity of lubricant can be regularly held between the sliding body surface slid on the guide surface 14 of the guide member 12 and the guide surface 14. The lack of the lubricant by its swelling between the contact surfaces of the sliding body 13 and the guide surface can be prevented, and a sliding device can be regularly smoothly operated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding device having a guide member and a sliding body guided and slid by the guide member.

[0002]

2. Description of the Related Art A sliding device of the type described above is employed in various types of mechanical devices, and is widely employed, for example, in a window regulator for driving a window glass provided in a door of an automobile up and down. In this window regulator, the guide member is fixed to the lower side of the window glass, and the sliding member is slidably fitted in the longitudinal direction of the guide member.
It is driven along a guide member by a swing arm supported by the door body. Thereby, the guide member operates up and down together with the window glass.

In such a sliding device, a lubricant made of, for example, grease is applied to the guide surface so that the sliding body can slide smoothly on the guide surface of the guide member. The grease reduces the frictional force acting between the sliding body and the guide surface of the guide member, and allows the sliding body to operate smoothly.

However, when a large load is applied to the sliding body and a high surface pressure is applied between the sliding body and the guide surface of the guide member, the lubricant is pushed out from between the contact surfaces of the two, and the sliding body and the sliding body are pressed. A sufficient amount of lubricant is not retained between the guide surface and the lubrication effect is reduced.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a sliding device which has a simple structure and eliminates the above-mentioned conventional disadvantages.

[0006]

According to the present invention, there is provided a sliding device of the type described at the beginning,
A sliding device is characterized in that a groove for holding a lubricant is formed on a sliding body surface that slides on a guide surface of a guide member.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which a sliding device according to the present invention is applied to a window regulator attached to a door of an automobile will be described below with reference to the drawings. And clarify more specifically.

FIG. 1 is a front view showing a door 1 of an automobile. Reference numeral 2 denotes a door main body, and reference numeral 3 denotes a window frame integrated with the door main body 2. A pair of guide bars 4 and 5 extending vertically in parallel with each other are fixed inside the door 1, and each side edge of the window glass 6 is slidable in the vertical direction on the guide bars 4 and 5. Mated.

A window regulator 8 having a sliding device 7 is disposed inside the door main body 2, whereby the window glass 6 is driven up and down by a window regulator 6, and a window defined by a guide bar 4 and a window frame 3. The opening 10 is opened and closed by the window glass 6. In the door 1 shown in FIG.
A rotating glass 9 that rotates in the direction of arrow A is disposed in front of the window glass 6.

A sliding device 7 constituting a window regulator 8 has a guide member 12 fixed to a lower side of a window glass 6 via a bracket 11, and a block-shaped sliding member guided by the guide member 12 to slide. The moving body 13 is provided. As shown in FIGS. 2 to 4, the guide member 12
It has a substantially C-shaped cross section and extends long along the lower side of the window glass 6. The sliding body 13 is fitted inside the guide member 12 and slidably contacts a guide surface 14 formed by an inner side surface of the guide member 12 via a lubricant described later, in the longitudinal direction of the guide member 12. It can reciprocate freely.

The window regulator 8 includes, in addition to the sliding device 7 described above, a motor 15 fixedly disposed inside the door main body 2, a driving pinion 16 which is rotated by the motor 15, and a motor inside the door main body 2. A gear 17 rotatably supported and meshing with the pinion 16, and a swing arm 19 having a base end fixed to the gear 17 and a tip end rotatably fitted to a pin 18 protruding from the sliding body 13. have. The pin 18 extends through a slit 20 formed over the entire length of the guide member 12.

When the motor 15 operates and the drive pinion 16 rotates about its central axis, the rotation
And the gear 17 rotates about its central axis. As a result, the swing arm 19 swings in the direction indicated by the arrow B in FIG. 1, and the sliding body 13 pivotally attached to the distal end of the arm 19 via the pin 18 is connected to the guide member 12.
While sliding in the longitudinal direction (the direction of arrow C). As a result, the window glass 6 moves up and down while being guided by the guide bars 4 and 5, and opens and closes the window opening 10.

Here, the sliding surface 13 is provided on the guide surface 14 of the guide member 12 so that it can slide smoothly.
Is coated with a lubricant (not shown) made of, for example, grease. With such a lubricant, the frictional force acting between the sliding body 13 and the guide surface 14 can be reduced, and the sliding body 13 can slide smoothly along the guide member 12.

However, as described above, since a large load is applied to both the window glass 6 and the guide member 12 on the sliding body 13, the sliding body 13 and the guide against which the sliding body 13 abuts via a lubricant. A high surface pressure acts on the surface 14.
For this reason, in the conventional sliding device, the lubricant is pushed out from the contact surface between the sliding body 13 and the guide surface 14 so as to protrude, and a sufficient amount of the lubricant is not retained therein, so that the lubrication is not performed. The lubricating effect of the agent may be reduced, and smooth operation, particularly when the window glass 6 is raised, may be hindered.

Therefore, in the sliding device 7 of the present embodiment, as shown in FIGS.
A groove 21 for holding the lubricant, for example, grease, is formed on the surface of the sliding body that is in sliding contact with the lubricant via a lubricant. A large amount of lubricant can be held in the groove 21 of the sliding body 13.

According to this configuration, when the sliding body 13 slides along the guide member 12, even if a large load acts on the sliding body 13 from above, the sliding body slides on the guide surface 14 of the guide member 12. A large amount of lubricant can always be held between the moving body surface and the guide surface 14, and the lubricating action can be sufficiently exerted. The extremely simple structure of forming the groove 21 in the sliding body 13 can prevent a problem that the lubricant is pushed out from between the contact surfaces between the sliding body 13 and the guide surface 14 to cause a shortage of the lubricant. The glass 6 can be raised smoothly.

The present invention can be widely applied not only to a sliding device used in a window regulator but also to a sliding device used in various other mechanical devices.

[0018]

According to the sliding device of the first aspect, the effect of the lubricant can be maintained for a long period of time by a simple structure in which the groove for retaining the lubricant is formed in the sliding body, and the sliding is always performed. The moving body can be operated smoothly.

[Brief description of the drawings]

1 shows a door of a motor vehicle provided with a window regulator having a sliding device.

FIG. 2 is an enlarged perspective view of a sliding device.

FIG. 3 is a perspective view showing a state in which a sliding body of the sliding device shown in FIG. 2 is removed from a guide member.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 2;

[Explanation of symbols]

 7 Sliding device 12 Guide member 13 Sliding body 14 Guide surface 21 Groove

Claims (1)

[Claims] 1. A sliding device having a guide member and a slide member guided and slid by the guide member, wherein a groove for holding a lubricant is formed on a slide member surface slidably in contact with a guide surface of the guide member. A sliding device characterized by being formed.