KR101966444B1 - Self-closing device for sliding doors - Google Patents

Abstract

The invention relates to a self-closing device for a sliding door of the type comprising at least one sliding leaf (2) suspended from an upper profile (3). The self-closing device (1) comprises a drive belt (10) configured to be coupled to the sliding leaf (2); A closed pulley 20 having an elastic means 30 and disposed on a first rotational shaft 4 integral with the top profile 3 and engaging the first end 11 of the drive belt 10; Is disposed on a second rotary shaft 5 integral with the upper profile 3 and having a stop means 50 and a second end 12 of the drive belt 10 opposite to the first end 11, The stitch includes a brake pulley, and the rotational movement of the closing pulley 20 and the brake pulley 40 is connected by the drive belt 10.

Description

[0001] SELF-CLOSING DEVICE FOR SLIDING DOORS [0002]

The invention relates to a self-closing device for a sliding door of the type comprising at least one sliding leaf adapted to be displaced from an upper profile and displaced in the direction of an upper profile. The self-closing device allows the sliding door to be closed independently at a constant rate controlled by the user. The closed movement is performed safely, efficiently, smoothly and stably while preventing unwanted noise and slum shut. In addition, the device of the present invention has a reduced miniature size that facilitates mounting and maintenance operations.

The present invention is particularly suitable for use in sliding doors having sliding leaves made using any type of material, such as glass, wood, plastic or combinations thereof, and allowing for extensive structural changes.

Spontaneously closed sliding doors are of great interest, especially in the home and commercial areas, due to energy efficiency. The use of any type of ventilated enclosure or sliding door that spontaneously closes in space can significantly reduce the energy consumption that is intended, for example, for its thermal adaptation.

BACKGROUND OF THE INVENTION [0002] Today, several types of rather complicated devices are known which can perform spontaneous closure of sliding doors in a more efficient manner.

Of the simplest devices, one can note that a device using one or more coil springs arranged longitudinally in the direction of the upper profile, one of the ends being pushed by the drag mechanism integral with the sliding leaf during opening of the device. Once the sliding leaf is released, the sliding leaf is pushed by the spring in the closing direction, which tends to restore the resting state of the sliding leaf. In general, these devices are combined with the use of a cylinder-piston which serves to dampen closure. There are several problems with this type of devices. The first problem is that once the spring is selected and the device is installed, there is no possibility to adjust the closure rate. The second problem is that the closure does not occur at a constant rate, that is, the sliding leaf is initially accelerated and then slowed, resulting in sudden movements that can cause clashes, dangerous situations, and rocking motion that can cause vibrations. The third problem is that the spring begins to lose its elasticity over time and eventually becomes insufficient to completely close the door.

Of the most complicated closing devices, one can note the device using a cable characterized in that one end is coupled to the sliding leaf and the other end is coupled to the spring. The operating mode for the door closure is the same as in the previous case, during the opening of the sliding leaf, the cable is extended to clamp the spring, once the sliding leaf is released, the spring is loosened and pulled from the cable to pull the sliding leaf. The operating mode for stopping the sliding leaf is not significantly different from the previous case. More specifically, this type of device requires the use of an external stop located at some anchor point of the door. Of the various possibilities, the use of elements acting as a stop or rack section disposed near the side where the door is closed is noted. In the case of a rack, the rack is generally configured to accommodate a toothed pulley disposed on the sliding leaf. Once the toothed pulley is engaged with the rack, the movement of the sliding leaf is slowed down. This type of device has similar problems as in the previous case. That is, there is no possibility of regulating the closure rate, the closure does not occur at a constant rate, and sudden acceleration and deceleration events occur which could cause the elements or doors of the device to deteriorate or destroy, or even cause an accident. In addition to these problems, there is a mounting difficulty caused by the presence of an external stop to achieve accurate adjustment.

In order to solve the above-mentioned problems, the self-closing device for a sliding door of the present invention has an efficient and safe design in which the sliding leaf can be closed at a constant speed controlled by the user's will, As shown in Fig.

The apparatus of the present invention is specifically designed for a sliding door comprising at least one sliding leaf suspended from an upper profile and configured to displace in the direction of an upper profile. In this regard, structural modifications acceptable to such doors are very diverse, beyond the arrangement of the material forming the door and the structural modifications for the adjacent enclosure. In some embodiments, the apparatus of the present invention may be applied to a sliding door having one or more sliding leaves moving simultaneously in the same or opposite direction.

In order to solve the above-mentioned problems,

A drive belt disposed along the top profile and adapted to engage the sliding leaf,

A closed pulley having resilient means and disposed on a first rotational axis integral with the top profile and engaging the first end of the drive belt,

Applying a load to the resilient means through rotational motion transmitted by the drive belt during opening of the sliding leaf,

- a closing pulley configured to push the sliding leaf through a rotational movement in the opposite direction that conveys unloading of the resilient means during closing of the sliding leaf (2)

A brake pulley having stop means and disposed on a second rotation axis integral with the upper profile and engaged with a second end of the drive belt opposite the first end,

The rotary motion of the closed pulley and the brake pulley is connected by a drive belt,

The brake pulley,

- separating the stop means during opening of the sliding leaf,

And to stop the sliding leaf by the clutch of the stop means during closing of the sliding leaf.

As will be described later, the connection of the closing pulley and the brake pulley via the drive belt enables closed movement of the sliding leaf at a constant speed, and this closing movement can also be adjusted by the user. Such adjustment is best considered, for example, when the sliding leaf is stopped without causing damage in the event that there is an obstacle or person that completes the closure and stops its forward movement in an appropriate manner, and once the obstacle is removed or the person is far away Closing the ground is completed.

The drive belt is coupled to a connecting skid integral with a pulling clamp with which the sliding leaf is engaged and the pulling clamp includes rolling means configured to be displaced on a rolling rail disposed along the top profile. In general, the sliding leaf is also attached to a dragging clamp that is not engaged with the drive belt, and the dragging clamp includes rolling means configured to be displaced on the rolling rail. Preferably, the drive belt is disposed vertically on the top profile for space optimization reasons. However, if a drive belt is required along with the remaining device components at the time of installation, the drive belt may also be placed in a horizontal position relative to the upper profile.

Closed pulley,

A closed main body coupled to the first rotational shaft by a first bearing and having an inner housing configured to receive the resilient means,

And a closed cap coupled to the first rotational axis through the second bearing and having first securing means for the containment body to confine the resilient means.

The closure body of the containment pulley includes a first toothed periphery configured to engage the drive belt.

The closing pulley also includes a pair of washers disposed between the resilient means within the inner housing, the washer being capable of receiving an axial force exerted by the resilient means when actuated.

Preferably, the resilient means include a leaf spring including an inner end coupled to the first rotational axis and an outer end coupled to the closing body, the leaf spring being compressed during opening of the sliding leaf, do. The leaf spring is selected according to the weight of the door sliding leaf, and has sufficient strength to press the sliding leaf at a desired speed. Likewise, the trailing edge of the leaf spring is adjusted to maintain a minimum accumulated energy once the sliding leaf is closed. Thus, since the mounting dimension error caused by improper positioning of the device elements can be corrected, proper closure of the sliding leaf is ensured, preventing the stopping of the sliding leaf before it is completely closed, and facilitating the installation work.

Brake pulleys,

A stationary body coupled to the second rotational shaft by a third bearing and having an inner housing configured to receive the stop means,

And a brake cap having second fastening means for the stationary body so as to confine the stop means.

The stop body includes a second toothing portion configured to engage the drive belt.

Preferably, the stop means comprises:

A friction brake drum coupled to the stationary body by the third fixing means,

A brake shaft coupled to the second rotary shaft by a single direction bearing and freely coupled to the brake drum,

The single-

The brake shaft is rotated at the same speed and the same direction as the brake drum to prevent any friction between the brake shaft and the brake drum,

The rotary motion of the brake shaft in the opposite direction is blocked during the closing of the sliding leaf so that the brake shaft does not move to generate friction with respect to the brake drum.

The stop means includes a friction control device coupled to the brake drum and configured to control a friction level between the brake shaft and the brake drum. This adjustment can control the closing speed of the sliding leaf.

The device of the present invention is completed by two lateral protective elements. Of these, the first protection element consists of a damper protection element and the second protection element consists of a maintenance protection element.

The damper protection element is configured to soften the closing of the sliding leaf at the end, i.e. at the time of completing the closing position. The damper protection element is secured to the top profile to smoothly stop the final advance of the pulling clamp, the contact being achieved through a piece of rubber piece or any other resilient material.

The retention protection element satisfies the dual function. That is, the retention protection element keeps the sliding leaf if it wants to soften the opening of the sliding leaf at the last part, that is when the sliding leaf completes the open position, and keep the door open during the unstable time period. To achieve the damping function, the retention protection element is secured to the upper profile to smoothly stop the final advance of the dragging clamp, the contact being achieved through the piece of rubber piece or any other resilient material. In order to satisfy this retention function, the retention protection element includes a hitch plate having a joint configured to receive and retain the hitch screw disposed in the dragging clamp 16.

BRIEF DESCRIPTION OF THE DRAWINGS The following is a brief description of a series of drawings that serve to provide a better understanding of the present invention with regard to embodiments of the invention presented as non-limiting examples of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an elevational view of an apparatus of the present invention applied to a sliding door of a leaf. Fig.
Figure 2 corresponds to section AA in Figure 1;
Figure 3 corresponds to section BB in Figure 1;
4 is a perspective view of the device of the present invention.
5 is a perspective view of a closed pulley.
6 is an exploded view of a closed pulley.
7 is a perspective view of a brake pulley.
8 is an exploded view of a brake pulley.
Figure 9 corresponds to section CC of Figure 1;
Figure 10 corresponds to section DD of Figure 1;
Figure 11 corresponds to section EE of Figure 1;
12 is a perspective view of lateral protective elements;
13 is a perspective view of the drive belt;

Figure 1 shows an elevational view of the inventive device 1 applied to a sliding door comprising a sliding leaf 2 which is configured to be displaced from the upper profile 3 and displaced in the direction of the upper profile 3. [ The sliding door is represented by the sliding leaf 2 in the closed position.

As can be appreciated, the device 1 can be,

A drive belt (10) arranged along the upper profile (3) and adapted to engage the sliding leaf (2)

6 and 11) which is integral with the upper profile 3 and which is in engagement with the first end 11 of the drive belt 10, As the pulley 20,

- apply a load to the resilient means (30) through the rotational movement transmitted by the drive belt (10) during the opening of the sliding leaf (2)

- a closing pulley (20) configured to urge the sliding leaf (2) through a rotational movement in the opposite direction that conveys the unloading of the resilient means (30) during closing of the sliding leaf;

8 and 9) which is integral with the upper profile 3 and which has a stop means 50 and which is arranged on the second end of the drive belt 10 opposite to the first end 11, And a brake pulley (40) engaged with the two ends (12)

The rotational movement of the closed pulley 20 and the brake pulley 40 is connected by the drive belt 10,

The brake pulley (40)

The stop means 50 is released during the opening of the sliding leaf 2,

And to stop the sliding leaf (2) by the clutch of the stop means (50) during the closing of the sliding leaf.

The relationship between the closed pulley 20 and the brake pulley 40 via the drive belt 10 enables the closing movement of the sliding leaf 2 at a constant speed.

2 and 3 show that the drive belt 10 is coupled to a connecting skid 13 integral with the pulling clamp 14 to which the sliding leaf 2 is fastened and which pulling clamp 14 has an upper profile 3 And a rolling means 15 configured to be displaced on a rolling rail 6 disposed thereon. The sliding leaf 2 is also attached to a dragging clamp 16 which is not engaged with the drive belt 10 and the dragging clamp 16 comprises rolling means 15 adapted to be displaced on the rolling rail 6. In this embodiment, the drive belt 10 is arranged in the vertical direction on the upper profile 3. [

Figure 4 is a perspective view of the device 1 in which the arrangement of components in more detail with respect to the upper profile 3 can be seen.

5 is a perspective view of a closed pulley 20 mounted on a first support plate 7 which allows engagement with the upper profile 3.

6 is an exploded view of a closed pulley 20, in which a closed pulley is shown,

A closed main body 21 coupled to the first rotational shaft 4 by a first bearing 22 and having an inner housing 23 configured to receive the resilient means 30,

Includes a closed cap 24 coupled to the first rotational axis 4 through a second bearing 25 and having a first fastening means 26 for the closure body 21 to receive the resilient means 30 . The first fastening means 26 allows for attachment and detachment for its mounting and maintenance work and for this purpose a screw can be used as in this embodiment or a clip, Can be used. The first bearing 22 and the second bearing 25 can be rotated in both directions.

The closing body 21 of the take-off pulley 20 includes a first toothing 28 which is configured to engage the drive belt 10.

The closing pulley 20 also includes a pair of washers 27 disposed between the resilient means 30 within the inner housing 23 and the washer 27 is actuated by the resilient means 30 when actuated Thereby accommodating the induced axial force.

Preferably the resilient means 30 comprises a leaf spring 31 comprising an inner end 32 coupled to the first rotational axis 4 and an outer end 33 coupled to the closing body 21, The leaf spring 31 is compressed during the opening of the sliding leaf 2 and is released during closing of the sliding leaf 2. The first rotary shaft 4 includes a notch 8 into which the inner end 32 is introduced to enable engagement between the first rotary shaft 4 and the leaf spring 31. The closing body 21 includes a notch 29 with an outer end 33 inserted therein to enable engagement between the leaf spring 31 and the closing body 21.

Figure 7 is a perspective view of a brake pulley 40 mounted on a second support plate 9 which allows fastening to the upper profile 3.

8 is an exploded view of the brake pulley 40, in which a brake pulley is shown,

A stationary body 41 coupled to the second rotary shaft 5 by a third bearing 42 and having an inner housing 43 configured to receive the stop means 50,

And a brake cap 44 having a second fastening means 45 for the stop body 41 to receive the stop means 50. [

The stop body 41 includes a second toothing portion 48 configured to engage the drive belt 10.

Preferably, the stop means (50)

A friction brake drum 51 coupled to the stationary main body 41 by the third fixing means 46,

And a brake shaft 52 coupled to the second rotary shaft 5 by the unidirectional bearing 47 and freely coupled to the brake drum 51,

The single direction bearing (47)

The brake shaft 52 is rotated at the same speed and the same direction as the brake drum 51 so that any friction between the brake shaft and the brake drum In addition,

Is configured to block the rotational movement of the brake shaft 52 in the opposite direction during the closing of the sliding leaf 2 so that the brake shaft 52 does not move to generate friction for the brake drum 51. [

The second fastening means 45 and the third fastening means 46 permit detachment for its mounting and maintenance work and for this purpose a screw can be used as in this embodiment or a clip, May be used in other configurations. The third bearing 42 can be rotated in both directions.

The stop means 50 includes a friction regulating device 53 coupled to the brake drum 51 and configured to control the friction level between the brake shaft 52 and the brake drum 51.

9, 10 and 11, it can be seen how the different functional components, namely the brake pulley 40, the drive belt 10 and the closing pulley 20, respectively, are integrated.

Fig. 12 shows a perspective view of the lateral protection elements, i.e. damper protection element 17 and retention protection element 18. Fig.

The damper protection element 17 is configured to smooth the closing of the sliding leaf 2 at the time of completing the closing position. The damper protection element 17 is secured to the top profile 3 (Figs. 1 and 2) to smoothly stop the final advance of the draw clamp 14 (Fig. 1 and Fig. 2) and the contact can be made of rubber pieces or pieces of any other elastic material .

The retention protection element 18 satisfies the dual function. That is, the retention protection element keeps the sliding leaf 2 open if it is desired to smooth the opening of the sliding leaf 2 at the time when the sliding leaf completes the open position and to keep the door open. In order to satisfy the damping function, the retention protection element 18 is fixed to the top profile 3 to smoothly stop the final advance of the dragging clamp 16, and the contact is made with a rubber piece or piece of any other elastic material . The retention protection element 18 includes a hitch plate 18A having a joint 18B configured to receive and hold a hitch screw 18C (Figure 13) disposed in the dragging clamp 16 do.

1: Self-closing device 2: Sliding leaf
3; Upper profile 4:
10: drive belt 11: first end
13: Connecting Skid 14: Towing Clamp
15: rolling means 20: closed pulley
21: closing body 22: first bearing
23: inner housing 24: closed cap
26; First fixing means 27:

Claims (11)

A self-closing device for a sliding door, characterized in that the sliding door is of the type comprising at least one sliding leaf (2) configured to be suspended from the upper profile (3) and displaced in the direction of the upper profile (3) , A self-closing device (1) for a sliding door,
A drive belt (10) arranged along the upper profile (3) and adapted to engage the sliding leaf (2)
A closed pulley 20 having an elastic means 30 and disposed on a first rotary shaft 4 integral with the upper profile 3 and meshing with the first end 11 of the drive belt 10,
- apply a load to the resilient means (30) through the rotational movement transmitted by the drive belt (10) during the opening of the sliding leaf (2)
To push the sliding leaf 2 through a rotational movement in the opposite direction that conveys unloading of the resilient means 30 during closing of the sliding leaf 2
A closed pulley 20,
A second end 12 of the drive belt 10 opposed to the first end 11 and a second end 12 of the drive belt 10 which is disposed on the second rotation axis 5 integral with the upper profile 3, Interlocking brake pulleys (40)
And the rotational motion of both the closing pulley 20 and the brake pulley 40 is connected by the drive belt 10,
The brake pulley (40)
The stop means 50 is released during the opening of the sliding leaf 2,
To stop the sliding leaf (2) by the clutch of the stop means (50) during the closing of the sliding leaf
Wherein the sliding door comprises a door. 3. The apparatus according to claim 1, wherein the drive belt (10) is coupled to a connection skid (13) integral with a traction clamp (14) to which the sliding leaf (2) 14) comprises a rolling means (15) adapted to be displaced on a rolling rail (6) arranged along the upper profile (3). 3. A pulley according to claim 1 or 2, characterized in that the closing pulley (20)
A closed main body 21 coupled to the first rotational shaft 4 by a first bearing 22 and having an inner housing 23 configured to receive the resilient means 30,
And a closed cap (24) coupled to the first rotational shaft (4) through a second bearing (25) and having a first securing means (26) for the closure body (21) Wherein the sliding door is a sliding door. 4. An apparatus according to claim 3, characterized in that the closing pulley (20) comprises a pair of washers (27) disposed between the resilient means (30) in the inner housing (23) 30. A self-closing device for a sliding door, comprising: The self closing device for a sliding door according to claim 3, characterized in that the closing body (21) comprises a first toothing (28) adapted to engage with the driving belt (10). 4. The device of claim 3, wherein the resilient means (30) comprises a leaf spring (31) comprising an inner end (32) coupled to the first rotational shaft (4) and an outer end (33) Characterized in that the leaf spring (31) is compressed during opening of the sliding leaf (2) and is released during closing of the sliding leaf (2). 3. The brake system according to claim 1 or 2, wherein the brake pulley (40)
A stationary body 41 coupled to the second rotary shaft 5 by a third bearing 42 and having an inner housing 43 configured to receive the stop means 50,
And a brake cap (44) having a second fastening means (45) for the stationary body (41) to hold the stop means (50). 8. Self-closing device for a sliding door according to claim 7, characterized in that the stop body (41) comprises a second toothed periphery (48) adapted to engage the drive belt (10). 8. The apparatus according to claim 7, wherein the stop means (50)
A friction brake drum 51 coupled to the stationary main body 41 by the third fixing means 46,
And a brake shaft 52 coupled to the second rotary shaft 5 by the unidirectional bearing 47 and freely coupled to the brake drum 51,
The single direction bearing (47)
The brake shaft 52 is rotated at the same speed and in the same direction as the brake drum 51 so that the brake shaft 52 and the brake drum 52 can be rotated while the sliding leaf 2 is being opened, 51,
And is configured to seal the rotational movement of the brake shaft 52 in the opposite direction during closing of the sliding leaf 2 so that the brake shaft 52 does not move to generate friction with respect to the brake drum 51 A self-closing device for a sliding door. The brake system according to claim 9, wherein the stop means (50) comprises a frictional adjusting device (53) coupled to the brake drum (51) and configured to control a friction level between the brake shaft (52) and the brake drum Wherein the sliding door further comprises: The self-closing device for a sliding door according to claim 1 or 2, characterized in that the closing movement of the sliding leaf (2) is performed at a constant speed.

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