KR101098404B1 - Reduction Gear of Roll Screen - Google Patents

Abstract

The technical feature of the present invention is to secure the connection state between the take-up pipe and the reducer case accommodated therein, so that the deceleration through the reducer case is completely transmitted to the take-up tube, and the deceleration is applied to the centrifugal force of the reduction shaft inside the reducer case. By reducing the rotational speed of the take-up pipe connected to the reducer case through the improved deceleration performance made through the resistance generated when the oil flows, the roll screen wound around the take-up pipe is greatly reduced, so that the deceleration performance As it is further improved than the conventional and the applicant's pre-registration deceleration device, the roll screen is rolled up smoothly during the whole winding section of the winding tube, so that its use is not only safer but also noise is prevented during use to create a quiet and comfortable indoor environment. It is to provide a reduction device of a roll screen that allows it.

Description

Roll reduction device for roll screens {The roll screen for a reduction device}

The present invention relates to a deceleration device that is operated only when the roll screen is rolled up and is not operated when the roll screen is lowered. More specifically, the roll screen wound around the take-up tube is rolled up and the one side of the torsion spring is wound up. It operates only when it is elastically applied and rapidly winds up according to the degree of elasticity. In particular, the connection between the take-up pipe and the reducer case housed therein to decelerate function is firm and the deceleration through the reducer case is perfectly in the take-up pipe. In addition, the reduction of the rotational speed of the winding pipe connected to the reduction gear case is wound on the winding pipe through the improved speed reduction performance that is achieved through the resistance generated when the oil flows due to the centrifugal force of the reduction shaft inside the reduction gear case. When the roll screen is slowed down greatly As relates to the reduction of the roll screen device that allows the use of a roll screen can be safe to use, as well as creating a noise it is prevented quiet and comfortable indoor environment.

In the related art, when the roll screen is rolled up, the roll screen is instantaneously wound according to the elasticity of the one side torsion spring inside the winding tube, which not only surprises the user but also generates severe noise during use.

For example, when the roll screen is rapidly wound on the take-up tube, the roll screen is rapidly wound by the return elastic force of the torsion spring by one side torsional compression inside the take-up tube. The user is surprised while being wound, and there is a problem in that a heavy noise occurs during use while the handle bar at the bottom of the roll screen hits the case receiving the take-up pipe due to the acceleration.

Therefore, as an example of a roll screen reduction device for solving this problem, Patent Registration No. 909039 (hereinafter referred to as "pre-registration patent") has been pre-registered by the present applicant.

The pre-registered patent is the winding pipe is built up inside the upper housing frame, a torsion spring is installed on the inner side of the winding pipe with a support rod, the winding tube is given a return elastic force by the torsional compression of the torsion spring, the winding pipe It is fixed to one end of the support rod while being inserted into the reduction rod having a diameter that matches the inner diameter of the winding tube, the spring support is placed between the reduction rotor and the torsion spring wound on the support rod, the outer diameter of the reduction rotor The rotational speed of the winding tube which is reversely rotated upward by the return elastic force of the torsion spring while being tightly fitted to the inner diameter of the winding tube is configured to be decelerated by the deceleration rotating body.

However, the pre-registered patent is to decelerate the rotational speed of the winding tube reversely rotated by the return elastic force of the torsion spring through the deceleration rotating body to decelerate for a certain period when the roll screen is rolled up. Such a reduction gear assembly is a method in which a plurality of gears (speed gears, one-way gears, cam gears, etc.), ratcheting means, and one-way spool, etc. are complicatedly operated in a deceleration rotating body, and thus, due to friction between components during long-term use, There was a risk of causing malfunction due to abrasion, and since the deceleration rotating body accommodated in the narrow space inside the winding pipe has many restrictions on its size, assembling complicated parts to the deceleration rotating body that is restricted in size as described above Not only is it not easy to make, but it is also expensive to produce, and the complexity of the structure The high rate of failure of the fastener assembly leads to problems such as frequent repairs and even longer service life.

In addition, since the deceleration device assembly as described above has a structure in which the outer diameter of the deceleration rotating body is simply connected to the inner diameter of the winding pipe in which the deceleration rotating body is accommodated, the deceleration through the deceleration rotating body is not wound as the connection state is not firm. There is a problem that the deceleration performance is greatly reduced because it is not completely delivered to the pipe.

The present invention has been made in order to solve the problems that are not solved in the prior patent registration device and the applicant of the present applicant, as described above, the reducer by making the connection between the winding pipe and the reducer case accommodated therein more firmly Winding pipe connected to the reducer case through the improved deceleration performance that is achieved through the case that the reduction through the case is completely transmitted to the take-up pipe as well as the deceleration is generated through the flow of oil caused by the centrifugal force of the reduction shaft inside the reducer case. By reducing the rotational speed of the roll screen, the roll screen wound around the take-up pipe is greatly decelerated, and the deceleration performance is further improved than the conventional and applicant's pre-registration deceleration device, so that the roll screen is wound around the take-up pipe. As it is gently rolled up during use, it is safer to use and The main purpose is to reduce noise and to create a quiet and comfortable indoor environment. Another objective is to reduce the occurrence rate of the failure by reducing the structure of the reduction gear, and to reduce the manufacturing cost, thereby reducing the roll screen reduction device. The purpose is to provide.

The present invention for achieving the above object is a reducer case is received and connected to the inside of the take-up pipe; A one-way shaft inserted into the front inner surface of the reducer case; A spring inserted in close contact with an inner surface of the rear flange of the one-way shaft; In the connecting shaft of different diameter, one end penetrates the spring and has a play in the central axis of the inner surface of the one-way shaft rear flange, and the outer diameter of the second stage is forcibly fitted to the inner diameter of the spring and connected to the one-way shaft, A reduction shaft inserted into the rear inner surface; An O-ring disposed between the one-way shaft and the deceleration shaft; A sealing cap fitted to the rear end of the reducer case while being in close contact with the other end oil inlet of the reduction shaft; A connecting housing connecting the cross end of the rotating shaft to one end of the one-way shaft while the rotating shaft is inserted into the front inner surface of the reducer case and the torsion spring is wound around the winding tube; It is characterized in that the reduction device is made.

And the outer circumferential surface of the front of the reducer case in front of the connection frame of a predetermined length is formed in the winding groove formed in the same length on the inner surface of the take-up pipe, characterized in that the reducer case and the take-up pipe is firmly connected.

And the intermediate point of the reducer case is characterized in that the stepped portion is formed in close contact with the O-ring placed between the one-way shaft and the reduction shaft.

And the outer flange of the rear flange of the one-way shaft is characterized in that the engaging groove is formed to catch the engaging projection of the spring end.

And a plurality of flow grooves are formed on both sides of the outer circumferential surface of the deceleration shaft through which the oil, which is a viscous material injected through the other end oil inlet, flows.

As described above, the present invention applies a return elasticity due to torsional compression to the torsion spring received on one side of the winding tube while the roll screen wound around the winding tube is rolled upward, and rapidly wound up according to the elasticity thereof. Decrease through the reducer case as the connection between the reducer case and the take-up pipe that has a deceleration function is inserted into the connecting groove formed with the same length on the inner surface of the take-up pipe, which is formed on the outer circumferential surface in front of the case. The most effective effect is that the deceleration of the take-up tube is perfectly delivered to the take-up pipe, and the deceleration is achieved through the resistance generated during the flow of oil by the centrifugal force of the deceleration shaft inside the reducer case. The rotation speed of the take-up tube is reduced so that the roll screen wound around the take-up tube As the winding speed to the side is greatly reduced, the deceleration performance is further improved than the prior art and the applicant's pre-registration deceleration device, and its use is more safe as the roll screen is gently rolled up during the entire winding section of the winding tube. In addition, the noise is prevented during use to create a quiet and comfortable indoor environment, and the economical effect of reducing the production cost and reducing the failure rate by simplifying the structure of the reduction gear.

1 is an exploded perspective view showing the overall configuration of a roll screen reduction apparatus according to the present invention
Figure 2 is a cross-sectional configuration of the combined state showing the overall configuration of the roll screen reduction apparatus according to the present invention
Figure 3 is a schematic cross-sectional view showing an embodiment of a roll screen reduction apparatus according to the present invention
4 is a vertical cross-sectional view of the AA portion of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, the terms or words used in the detailed description and claims of the present invention are not limited to the ordinary or dictionary meanings, and the inventors appropriately describe the concept of terms in order to explain their own invention in the best way. It should be interpreted as meanings and concepts in accordance with the technical spirit of the present invention on the basis of the principle that it can be defined so, the configuration shown in the following embodiments and drawings described in the specification of the present invention is the most preferred one of the present invention Since it is only an example and does not represent all of the technical idea of the present invention, it will be apparent that there may be various equivalents and modifications that may replace them at the time of filing the present invention.

1 to 2 is a view showing the overall configuration of the roll screen reduction apparatus according to the present invention.

A reducer case 3 received and connected to the inside of the take-up pipe 2; A one-way shaft 4 inserted into the front inner surface of the reducer case 3; A spring 5 inserted in close contact with an inner surface of the rear flange 4a of the one-way shaft 4; In the connecting shafts having different diameters, one end penetrates through the spring 5 and is spaced apart from the central shaft 4b of the inner surface of the rear flange 4a of the one-way shaft 4, and the outer diameter of the second stage is A reduction shaft 6 inserted into the rear inner surface of the reducer case 3 while being connected to the inner diameter by being interposed with the one-way shaft 4; An o-ring 7 disposed between the one-way shaft 4 and the reduction shaft 6; A sealing cap 8 fitted to the rear end of the reducer case 3 while being in close contact with the other end oil inlet 6b of the reduction shaft 6; The cross shaft 10a of the rotary shaft 10 is inserted while the rotary shaft 10 is inserted into the front inner surface of the reducer case 3 and the torsion spring 9 wound around the winding tube 2 is wound therethrough. A connecting housing 11 connected to one end of the way shaft 4 to be inserted into the cross groove 4c; It is a structure by which the speed reduction apparatus 1 is comprised.

In addition, the outer circumferential surface of the reducer case (3) in front of the reducer case (3) and the fitting frame 12 of a predetermined length is projected to be fitted into the connecting groove (13) formed in the same length on the inner surface of the take-up pipe (2) The winding tube 2 is a structure in which it is firmly connected.

In addition, the inner step of the reducer case 3 is a configuration in which a stepped portion 14 is formed in which the O-ring 7 placed between the one-way shaft 4 and the reduction shaft 6 is in close contact.

In addition, the outer circumferential surface of the flange 4a of the one-way shaft 4 is configured to have a locking groove 15 to which the locking projection 5a of one end of the spring 5 is engaged.

In addition, a plurality of flow grooves 16 through which oil, which is a viscous material injected through the other end oil inlet 6b, are formed on both sides of the outer circumferential surface of the reduction shaft 6 are formed.

Unexplained reference numerals (17a) (17b) in the figure is a closing cap that is fitted to both ends of the winding pipe (2), (18a) (18b) a fixed bracket that is fixed to the closing cap (17a) (17b), ( 19) refers to the roll screen wound around the take-up tube (2).

In the present invention configured as described above, the roll screen 19 is fixed to a window frame or a door frame (not shown) through the fixing brackets 18a and 18b as shown in FIG. 3.

As described above, when the roll screen 19 is fixed to the window frame or the door frame and pulls downward by applying artificial force to a handle bar (not shown) integrated at the bottom of the roll screen 19, the roll screen 19 is wound up. The winding tube 2 is rotated downward while being overcome by the torsional compression of the torsion spring 9, which is accommodated inside one side of the tube 2 and wound around the rotary shaft 10, and is rotated downward. Done.

In addition, the reducer case (3) accommodated on the other inner side during the downward rotation of the take-up pipe (2) is also rotated in the downward direction, which is formed to project a predetermined length on the outer circumferential surface all around the reducer case (3) (11) ) Is inserted into the connecting groove 12 formed in the same length on the inner surface of the take-up pipe (2) is connected between the upper and the arc, so that the reduction of the reducer case (3) is made simultaneously with the downward rotation of the take-up pipe (2) In general, the downward rotation of the winding tube 2 is made without difficulty, and the one-way shaft 4 and the reduction shaft 6 in the reduction gear case 3 are not rotated.

As such, when the pull bar is completely pulled and the handle bar is fixed to the lower side of the case in which the roll screen 19 is accommodated, the screen screen or the door frame is blocked to serve as a screen for blocking sunlight or blocking insects.

On the other hand, when opening the roll screen 19 while releasing the fixed state of the handle bar in the above state, the means for releasing the fixed handle bar can be used a variety of means, which is a technical feature of the present invention Rather, since the general technical matters applied to the roll screen 19 are omitted.
Hereinafter will be described in detail with respect to the technical configuration of the present invention.

First, when the handle bar is released as described above, the roll screen 19 that is loosened while the winding pipe 2 is momentarily rotated upward by the return elastic force of the torsion spring 9 due to the torsional compression is wound around the winding pipe ( At the same time, the reducer case (3) accommodated in the winding pipe (2) is also rotated upward.
As described above, when the reducer case 3 is rotated upward, the one-way shaft 4 inserted into the front interior of the reducer case 3 is also rotated, which is rotated by the return elastic force of the torsion spring 9. 10) Also, the reverse end is rotated so that the cross end 10a is connected to one end groove 4c of the one-way shaft 4, which is also rotated upward by the return elastic force of the torsion spring 9, The one-way shaft 4 is rotated only in one direction that is not rotated when pulled in the downward direction, as described above.
In addition, as described above, when the one-way shaft 4 rotates in one direction, the deceleration shaft 5 is also rotated in the same direction. In the case of the deceleration shaft 6, one end of the spring is connected to the connecting shaft 6a having a different diameter. 5) One-way shaft 4 is constructed to have a clearance with the central axis 4b of the inner surface of the one-way shaft 4, the rear flange 4a, and the outer diameter of the two stages is forcibly fitted to the inner diameter of the spring 5 so that the one-way shaft Rotational force in the same direction as (4), the resistance force that flows through a plurality of flow grooves 16 formed on both sides of the deceleration shaft 6 is a viscous material filled inside the deceleration shaft 6 by the centrifugal force generated at this time As a result, the deceleration shaft 6 decelerates the upward rotation of the reducer case 3.

As described above, when the winding tube 2 rotates upward, the connecting frame 12 having a predetermined length protruding from the outer circumferential surface in front of the reducer case 3 is formed at the same length on the inner surface of the winding tube 2 as shown in FIG. 4. As the connection state of the reducer case 3 and the take-up pipe 2 having a deceleration function to be inserted into the connecting groove 13 is reduced, the deceleration through the reducer case 3 is completely transmitted to the take-up pipe 2. do.
And the deceleration through the reducer case (3) is a plurality of oils formed in both sides of the deceleration shaft (6) formed in the deceleration shaft (6) by the centrifugal force generated when the reduction shaft (6) is rotated on the inner surface of the reducer case (3) It flows through the flow groove (16), through which the reduction shaft (6) has a resistance in the reducer case (3), the rotation of the reduction shaft (6) and reducer case (3) is slowed by the resistance of this oil While the rotational speed of the take-up tube 2 through the reducer case 3 is greatly reduced, the roll screen 19 wound around the take-up tube 2 also reduces the winding speed upward. Winding on the pipe (2) is gently wound up during the entire section to prevent the impact or noise during the upward rotation of the roll screen (19).

Once again, the features of the present invention will be described in detail, the connecting frame 12 is formed to protrude at a predetermined length all around the outer circumferential surface in front of the reducer case 3 when the roll screen 19 is rotated upwards of the winding pipe 2. It is fitted to the connecting groove 13 formed in the same length on the inner surface and is firmly connected to the upper and lower doors, so that the deceleration through the reducer case 3 is completely transmitted to the take-up pipe 2, and the deceleration shaft 6 is As described above, the oil filled in the deceleration shaft 6 is decelerated as the rotation of the deceleration shaft 6 is made slow through the resistance generated when the oil flows while flowing through the plurality of flow grooves 16 formed at both sides. The performance is further improved, and the oil can be continuously filled and used through the oil inlet 6b on one side of the reduction shaft 6.

On the other hand, the bar is located in the stepped portion 14 formed in the inner intermediate point of the reducer case 3, the O-ring 7 placed between the one-way shaft 4 and the reduction shaft 6 is a reduction shaft ( 6) When the oil filled inside flows, it prevents and blocks leakage or flow toward the one-way shaft (4).

1: deceleration device 2: winding pipe
3: reducer case 4: one-way shaft
5: Spring 6: Reduction Shaft
6a: connecting shaft 6b: oil inlet
7: O-ring 8: sealing cap
9: torsion spring 10: rotating shaft
11: connecting housing 12: connecting frame
13: connecting groove 14: step
15: hanging groove 16: floating groove

Claims (5)

A reducer case 3 received and connected to the inside of the take-up pipe 2; A one-way shaft 4 inserted into the front inner surface of the reducer case 3; A spring 5 inserted in close contact with an inner surface of the rear flange 4a of the one-way shaft 4; In the connecting shafts having different diameters, one end penetrates through the spring 5 and is spaced apart from the central shaft 4b of the inner surface of the rear flange 4a of the one-way shaft 4, and the outer diameter of the second stage is A deceleration shaft 6 inserted into the rear inner surface of the reducer case 3 by being inserted into the inner diameter by being connected to the one-way shaft 4; An o-ring 7 disposed between the one-way shaft 4 and the reduction shaft 6; A sealing cap 8 fitted to the rear end of the reducer case 3 while being in close contact with the other end oil inlet 6b of the reduction shaft 6; The cross shaft 10a of the rotary shaft 10 is inserted while the rotary shaft 10 is inserted into the front inner surface of the reducer case 3 and the torsion spring 9 wound around the winding tube 2 is wound therethrough. A connecting housing 11 connected to one end of the way shaft 4 to be inserted into the cross groove 4c; Reduction device for a roll screen, characterized in that the reduction device (1) is made. The method of claim 1,
The decelerator case 3 has a connection frame 12 having a predetermined length protruding from the outer circumferential surface of the front, and an O-ring 7 disposed between the one-way shaft 4 and the deceleration shaft 6 at an internal intermediate point. Reduction device for a roll screen, characterized in that the stepped portion 14 is in close contact with the. delete The method of claim 1,
The spring (5) inserted into close contact with the inner surface of the rear flange (4a) of the one-way shaft (4) is characterized in that the one end locking projection (5a) is formed to be caught in the locking groove (15) of the outer peripheral surface of the flange (4a) Reduction gear in roll screen. The method of claim 1,
The deceleration shaft (6) is a reduction device of a roll screen, characterized in that a plurality of flow grooves (16) through which the oil is injected into the viscous material through the other end oil inlet (6b) is formed on both sides of the outer peripheral surface.

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