KR200254697Y1 - Device for adjusting the springs for nets of windows for protecting invasion of insects - Google Patents

Abstract

In the spring adjustment device of the automatic winding slide screen, the spring adjustment part 3 in which the large-diameter sprocket 1 and the small-diameter ratchet gear 2 are integrally formed by its keyway shaft shaft 4 is provided. A click 6 coupled to one end 4 ′ of the spring support shaft and engaged with the inclined tooth 5 of the small diameter ratchet gear 2 is formed at the upper left side of the small diameter ratchet gear 2. The adjusting piece 8 having the driving protrusion 7 formed thereon is adapted to the elasticity of the compression spring 11 in both grooves 10 and 10 'of the inner upper end of the housing 9 of the spring adjusting part 3. Supported by the left and right by the left and right driving of the driving protrusion (7) when tightening the spring, when holding the large diameter sprocket (1) by its teeth (12) to the right to rotate the desired number of times to tighten the spring. And loosen the spring loosely, When the front piece 8 is pushed to the left side, the spring 11 holding it is compressed and pushed, while the click 6 is released from the toothed gear 5 of the ratchet gear 2, and the spring which is tightened tightly is freely left as desired. As it is loosened, it is easy to freely adjust the amount of tightening and loosening of the spring in a short time.

Description

Device for adjusting the springs for nets of windows for protecting invasion of insects}

The present invention relates to a spring adjustment device of the automatic winding slide screen, and more particularly, to a spring adjustment device that can arbitrarily adjust the fastening and loosening speed and amount of the spring of the screen.

As a spring adjusting device for a conventional automatic winding slide screen, as shown in Figure 2, the large diameter sprocket 100 and the small diameter gear 200 is formed with a tooth plate 300 is a spring shaft 900 The two gears 600 and 600a which are fixedly coupled to one end of the tooth plate and are formed to face each other such that the teeth 500 of the small-diameter gear 200 of the tooth plate are different from each other in a symmetrical direction around the inner diameter thereof. The adjustment plate 700 engaged with the lower gear 600a is embedded in the housing 800. In this device, when the spring is tightened, the adjustment plate 700 is rotated to the right by holding the gear of the large diameter sprocket 100. The gear 500 of the small-diameter gear 200 engaged with the lower gear 600a of the wheel is rotated to the right (clockwise) while pushing the lower gear 600a of the adjustment plate 700 while rotating the spring shaft 900. Tighten the spring, but half the car is staggered. It is difficult to rotate the small diameter gear 200 at high speed because the small diameter gear 200 is rotated only by one tooth by mutual interference between two teeth 600 and 600a of the inner diameter of the adjusting plate 700. On the contrary, when loosely loosening the spring, press down on the protrusion part 800 of the adjusting plate 700, and the lower piece 600a of the adjusting plate is pushed down while the adjusting piece 700 held by the spring 400 is pressed down. It is released from the lower gear 500 of the small diameter gear 200 to rotate the spring fixed on the small diameter gear 200. In this case, the upper gear 600 and the lower gear 600a in the adjustment plate 700 are rotated. Because of the interference by half a difference by the small diameter gear 200 is rotated only by one tooth difference, the spring is also rotated by that much, it was difficult to loosen the spring in a large amount in a short time.

The present invention adjusts the spring adjusting part of the spring adjusting device for releasing or tightening the spring in the spring automatic adjusting device of the conventional self-winding slide screen as described above, while adjusting the loosening speed and the loosening amount of the spring at a high speed in a short time. It is described in detail with reference to the accompanying drawings as to provide a spring adjustment device of the automatic winding slide screen that can arbitrarily adjust the tightening as follows.

1 is a perspective view of the inside of a portion of the spring adjustment device according to the present invention.

Figure 2 is an internal perspective view of a portion of a conventional spring adjustment device.

* Description of the symbols for the main parts of the drawings *

1: Sprocket 2: Ratchet Gear

3: spring adjustment part 4: shaft hole

4 ': axle 5: toothbrush gear

6: Click 7: Driving protrusion

8: adjustment piece 9: housing

10,10 ': Adjustment piece groove 11: Compression spring

12: sprocket gear

The present invention is a spring adjustment device of the automatic winding slide screen, the spring adjustment portion (3) is formed integrally with the large diameter sprocket (1) and the small diameter ratchet gear (2) its keyway shaft shaft (4). (6) coupled to one end 4 'of the spring support shaft and engaged with the inclined tooth 5 of the small diameter reclined gear 2 at the upper left of the spring support shaft 2). The adjusting piece 8 formed at the upper side thereof and having the driving protrusion 7 formed thereon is provided with a compression spring 11 in both grooves 10 and 10 'at the upper end of the housing 9 of the spring adjusting part 3. While being supported by the elasticity of the driving protrusion 7 is mounted so as to move left and right by the left and right movement.

When the spring adjusting device of the present invention, which is configured as described above, is used by being mounted on the slide screen, when the spring is tightened and depressed, the large diameter sprocket (1) is held on its gear (12) and rotated to the right. When the spring in which the end 4 'of the support shaft is fixed to the shaft hole 4 of (3) is tightened while rotating to the right, and loosening the spring, the adjusting piece is driven by the driving protrusion 7 of the adjusting piece 8. When (8) is pushed to the left, the spring (11) held by it is compressed, and the adjustment piece (8) is pushed to the left side, and the click (6) formed at the lower left end of the adjustment piece is removed from the gear (5) of the ratchet gear (2). At this time, the ratchet gear (2) is rotated to the left side, and one end (4 ') is fixed to the spring adjuster (3), and the spring, which is tightened tightly, is released to rotate to the left to loosen the amount and speed of tightening and loosening of the spring. Randomly in a short time There is an easily adjustable feature.

Claims (1)

In the spring adjustment device of the automatic winding slide screen, the spring adjustment part 3 in which the large-diameter sprocket 1 and the small-diameter ratchet gear 2 are integrally formed by its keyway shaft shaft 4 is provided. A click 6 coupled to one end 4 ′ of the spring support shaft and engaged with the inclined tooth 5 of the small diameter ratchet gear 2 is formed at the upper left side of the small diameter ratchet gear 2. The adjusting piece 8 having the driving protrusion 7 formed thereon is adapted to the elasticity of the compression spring 11 in both grooves 10 and 10 'of the inner upper end of the housing 9 of the spring adjusting part 3. The spring adjusting device of the self-winding slide screen screen, characterized in that it is configured to be mounted to move left and right by the left and right movement of the driving protrusion (7).