Sliding door closing device

Abstract

A sliding door closing device having an easy door opening function with an opening system. The closing device provides a slider with an attachment and gripper on one side of the device, and a properly shaped support of a moving roller on the other side of the device. A pusher contacts a roller support of the roller with a slider gripper and an opening spring and choke. The opening system allows for the opening of a door by pushing the door on vertical strip or on the edge.

Claims

1. A sliding door closing device with a calming-cushioning system, comprising: a body (1) having a lower part with a longitudinal pusher (13) substantially parallel to a base of the body (1) and an upper part of the body (1) having longitudinal holes (23a, 23b) in side walls of the body (1) near ends of the body (1); a slider (2) located above the pusher (13) having lateral holes (24a, 24b) at ends of the slider (2), and the slider (2) having first and second chambers, wherein the first chamber has a closing spring (15) and a closing choke (11) disposed therein, and the second chamber has a closing gripper (6) slidably connected with the closing choke (11) and remaining in contact with the closing spring (15), and one end of the slider (2) in which the closing spring (15) and the closing choke (11) are located is terminated with a hooked attachment (25); an opening spring (14) attached to an outer side of the body (1), and an opening choke (12) attached on the opposite side of the body (1), whereby one end of the opening spring (14) and of the opening choke (12) are permanently attached to the walls of the body (1) and the other end of the opening spring (14) and the opening choke (12) are connected with a pin (21) placed through the longitudinal holes (23a) near one end of the body (1) and holes (24a) in the slider (2), and a pin (19) placed through the longitudinal holes (23b) near the other end of the body (1) and holes (24b) in the slider (2); a rotary and spring mounted slider gripper (8) at one end of the body (1) remaining in contact with one end of the pusher (13) and provided with a releasable attachment (26) that releasably fits to the hooked attachment (25) at the end of the slider (2); and a permanently fixed housing on the opposite end of the body (1) as the rotary and spring mounted slider gripper (8) in which first and second rollers (10a, 10b) are arranged in parallel to the base of the body (1), whereby the first roller (10a) is movable, and the second roller (10b) is stationary, and the movable first roller (10a) is located in a support (5), which is spring mounted to the housing, and a side surface of the support (5) remains in contact with an opposite end of the pusher (13).

2. The closing device, according to claim 1, comprising: the body (1) having the shape of a channel bar, which, in cross section, is narrower in a lower part than in an upper part of the body (1).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The sliding door closing device, according to the invention, is presented in a sample embodiment in a drawing, in which:

(2) FIG. 1 presents a simplified diagram of the first variant of the device with the door closed,

(3) FIG. 2 presents a simplified diagram of the second variant of the device with the door closed,

(4) FIG. 3 presents a simplified diagram of the first variant of the device with the door opened,

(5) FIG. 4 presents a simplified diagram of the first variant of the device with the door slid out,

(6) FIG. 5 presents an exploded view of the closing device components in its first variant, and

(7) FIG. 6 presents three views of the closing device mounting in the upper track.

DETAILED DESCRIPTION OF THE EMBODIMENTS

(8) A sample embodiment of the first variant of the sliding door closing device according to the invention is presented in the drawing, which has a metallic body 1 in the shape of a channel bar, which, in the cross section, is narrower in the lower part than in the upper part. At the ends of the body 1, there is a starting attachment 7 and an end attachment 9. The starting and end attachments are profiled so as to fit to the inner side of the horizontal door profile. The body 1 has four 25 mm long holes 23a and 23b in the side walls of the upper part. In the lower part of the body 1, there is a longitudinal component 13, which serves as a pusher, andin the upper, wider part of the bodyabove the pusher 13, there is a slider 2 with holes 24a and 24b at the ends. The slider 2 can travel in the body at the distance of 25 mm, since it is held with pins 19 and 21 placed in the holes 24a and 24b, moving in the holes 23a and 23b of the body 1. Inside the slider 2, there are two chambers. In one of them, there is a spring 15 and a choke 11 of the closing device, and in the other chamber, a gripper 6 of the closing device is fixed slidably, connected with the closing device choke 11 by a pin 22 and which remains in contact with the closing device spring 15. The end part of the slider, at the side of the spring 15 and choke 11, is terminated with a hooked attachment 25. To one of the external walls of the body 1, a spring 14 andon the opposite sidea choke 12 of the opening device is mounted. The ends of the spring 14 and choke 12 of the opening device are permanently attached to the body 1 wall on one side andon the other sideconnected with the pin 21 placed through the holes 23a in the body and through the holes 24a in the slider. At the end part of the body 1, at the end attachment 9, there is a rotary and spring mounted slider gripper 8, which remains in contact with the pusher 13, which is provided with an attachment 26 that fits to the attachment 25 at the end of the slider. The gripper 8 is connected to the body with a pin 20, and a spring 17 holds the slider gripper in the correct position. On the opposite side of the body 1, there is a permanently fixed housing comprising of a top cover 3 and bottom cover 4. Inside the housing, there are two rollers 10a and 10b arranged in parallel to the base of the body 1, whereby the roller 10a is movable, and the roller 10b is stationary. The movable roller 10a is placed in a support 5 with a pin 18 on which it rotates. The support 5 of the roller 10a is held in position by a spring 16. The side surface of the support 5 remains in contact with the end of the pusher 13.

(9) In the second variant, shown in the drawing in FIG. 2, the pusher 13 remains in contact with the opposite side of the support 5, which is a mirror reflection of the support 5 of the first variant. The other end of the pusher 13 remains in contact with the slider gripper 8, which is connected to the body with the pin 20. Since, in this variant, the pusher 13 is pulled by the roller support 5, its end remains in contact with the outer side of the slider gripper 8.

(10) In the initial state, the door rests against the cabinet or wall edge, the closing device spring 15 is released, and tension is created on the opening device spring 14, i.e. it is ready to open the door. Pushing on the side edge of the door or on the profile moves the door leaf in relation to the guide rail. This causes a simultaneous movement of the roller 10a, moves the roller support 5 and pusher 13, whose opposite side interacts with the gripper 8. Simultaneously, the slider gripper 8 turns in an axis perpendicular to the base of the body, thus releasing the slider 2. The released slider 2 moves in the holes cut in the body over a distance of 25 mm thanks to the release of the opening device spring 14. This movement is cushioned with the opening device choke 12. Along with the slider 2 movement, the door is moved away from the framing. When continuing to open the door, the closing device slider gripper 6 is moved, allowing to reload and create tension on the closing device spring 15 at the same time. Moving along a proper trajectory within the channel in the slider 2, thanks to guides cut (guiding channels) in the slider 2, the closing device gripper 6, when it creates tension on the closing device spring 15 and the choke 11, is locked, and the door continues to open freely. While closing the door, the closing device gripper 6 is released in the slider 2 by the guide attachment 25 or 26 or end attachment 9 mounted in the door rail. The slider 2 moves back in the body 1 and creates tension on the opening device spring 14 and the choke 12. At the same time, the locked closing device gripper 6 in the slider gripper moves inside the slider 2, being pulled by the closing device spring 15. This causes a pulling of the door to the framing edge. This movement is cushioned by the closing device choke 11 connected with the closing device gripper 6. When the door is pulled, the slider 2 is locked by the slider gripper. The door is ready to open. Roller support 5 is capable of moving from the position shown in FIG. 1 to the position in FIG. 3 which activates the pusher 13 when the user lightly pushes the door in a perpendicular direction to the motion of the slider and the gripper 6.

(11) In the second variant of the device, the movement of the roller 10a, while pushing, moves the support 5 which pulls the pusher 13. The pusher, being pulled and remaining in contact with the slider gripper, simultaneously causes the gripper 8 to rotate on a perpendicular axis to the body base, but in the opposite location as compared to the first variant. The slider gripper 8 has a hooked attachment on the opposite side as compared to the first variant. Its rotary movement releases the gripper.