Compact clamp for sliding glass doors with incorporated damper

Abstract

Disclosed is a new compact clamp for sliding glass doors, which includes two jaws, left jaw and right jaw. One of the jaws has a damper formed by a double-effect damper with gas and oil technology, using a cylinder containing a front gas chamber and a rear gas chamber which are located at the ends of the cylinder, and a central oil tank, the gas chambers and the oil tank being separated by a blind piston and an annular piston, which are both leak tight. In the central oil tank is disposed a non-leak tight damping piston that is connected to a rod of the damper and divides the tank into two oil chambers.

Claims

1. A compact clamp for glass sliding doors, the clamp comprising: a right jaw and a left jaw that are connected by connecting screws and spacer screws to establish a separation to couple to glass doors of different thicknesses, one or more wheels being disposed in the right jaw to displace the door by an overhead rail, a double effect gas and oil damper being disposed in the left jaw, the damper including a shank and a cylinder having ends thereof, the cylinder including a front gas chamber and a rear gas chamber located at the ends of the cylinder a central oil tank located between the front gas chamber and the rear gas chamber, a blind floating piston that separates the rear gas chamber and the central oil tank, a watertight annular floating piston separating the front gas chamber and the central oil tank, the shank of the damper being configured to pass the floating piston, and a non-watertight damping piston connected to the shank and located in the central oil tank, dividing the central oil tank into two oil tank chambers.

2. The compact clamp for sliding glass doors according to claim 1, wherein the cylinder of the damper is inseparably integrated in the body of the left jaw.

3. The compact clamp for sliding glass doors according to claim 1, wherein the damper is independent of the jaws and is coupled in a cylindrical housing provided in the left jaw to receive the cylinder of the damper.

4. The compact clamp for sliding glass doors according claim 1, wherein the shank of the damper has an oscillating hook at an outer end thereof that runs through a guide provided in the body of the clamp or attached to the body of the clamp.

5. The compact clamp for sliding glass doors according claim 2, wherein the shank of the damper has an oscillating hook at an outer end thereof that runs through a guide provided in the body of the clamp or attached to the body of the clamp.

6. The compact clamp for sliding glass doors according claim 3, wherein the shank of the damper has an oscillating hook at an outer end thereof that runs through a guide provided in the body of the clamp or attached to the body of the clamp.

7. The compact clamp for sliding glass doors according to claim 4, wherein the oscillating hook is coupled to an end-of-stroke limit located in a guide through which the door runs or in a frame of the door, the oscillating hook comprising a blocker configured to block the position of the damper in a pre-stressed position.

8. The compact clamp for sliding glass doors according to claim 5, wherein the oscillating hook is coupled to an end-of-stroke limit located in a guide through which the door runs or in a frame of the door, the oscillating hook comprising a blocker configured to block the position of the damper in a pre-stressed position.

9. The compact clamp for sliding glass doors according to claim 6, wherein the oscillating hook is coupled to an end-of-stroke limit located in a guide through which the door runs or in a frame of the door, the oscillating hook comprising a blocker configured to block the position of the damper in a pre-stressed position.

10. The compact clamp for sliding glass doors according to claim 1, wherein the front and rear gas chambers contain nitrogen gas.

11. The compact clamp for sliding glass doors according to claim 2, wherein the front and rear gas chambers contain nitrogen gas.

12. The compact clamp for sliding glass doors according to claim 3, wherein the front and rear gas chambers contain nitrogen gas.

13. The compact clamp for sliding glass doors according to claim 4, wherein the front and rear gas chambers contain nitrogen gas.

14. The compact clamp for sliding glass doors according to claim 5, wherein the front and rear gas chambers contain nitrogen gas.

15. The compact clamp for sliding glass doors according to claim 6, wherein the front and rear gas chambers contain nitrogen gas.

16. The compact clamp for sliding glass doors according to claim 7, wherein the front and rear gas chambers contain nitrogen gas.

17. The compact clamp for sliding glass doors according to claim 8, wherein the front and rear gas chambers contain nitrogen gas.

Description

DESCRIPTION OF THE DRAWINGS

(1) To illustrate what has hitherto been explained, the present description is accompanied by a set of drawings that are only illustrative and not limiting of the practical possibilities of the invention.

(2) In said drawings:

(3) FIG. 1 corresponds to a perspective view of a new compact clamp coupled to the glass pane of a sliding door.

(4) FIG. 2 corresponds to a perspective view of a new compact clamp coupled to the glass pane of a sliding door, with the damper out of its housing.

(5) FIG. 3 corresponds to a sectional view of the new clamp with the extended damper.

(6) FIG. 4 corresponds to a sectional view of the new clamp with damper preloaded.

(7) FIG. 5 corresponds to a side view of the new clamp.

(8) FIG. 6 corresponds to a perspective view of a door of small dimensions that mounts two compact clamps according to the invention, one to cushion and accompany the blade in the opening movement and another for the closing movement.

LIST OF REFERENCES

(9) 1) Left jaw 2) Right jaw 3) Door 4) Damper 5) Wheels 6) Cylinder 7) Front gas chamber 8) Rear gas chamber 9) Central oil tank 10) Annular floating piston 11) Blind floating piston 12) Damper piston 13) shank 14) Cylindrical housing 15) Oscillating hook 16) Guide 17) End-of-stroke limit 18) Blocking means

DESCRIPTION OF A PRACTICAL EXAMPLE

(10) According to the drawings, the new compact clamp has two jaws, left jaw (1) and right jaw (2), which are connected by means of connecting screws and spacer screws, that establish the adequate separation for their coupling to the glass door (3).

(11) The left jaw (1) incorporates a double effect gas and oil damper, while the right jaw (2) incorporates two wheels (5) for the displacement of the door by an aerial rail not illustrated.

(12) The damper (4), it has a space formed by a cylinder (6) which distinguishes a front gas chamber (7) and a rear gas chamber (8) located at the ends of the cylinder, the gas being nitrogen, and a central oil tank (9). The gas chambers (7 and 8) and the central oil tank (9) are separated by two watertight pistons, a blind floating piston (11) arranged between the rear gas chamber (8) and the central oil tank (9) and an annular floating piston (10) that is crossed by the shank (13) of the damper (4), arranged between the front gas chamber (7) and the central oil tank (9). Both pistons are watertight, so they are equipped with gaskets or sealing rings to avoid mixing gas and oil.

(13) In the central oil tank (9) a third non-watertight damping piston (12) is available, which is connected to the damper shank (13) and which divides the central oil tank (9) into two chambers, in such a way that the movement of the piston forces a transfer of oil between chambers.

(14) In the illustrative example, the double effect gas and oil damper (4) is constituted as an independent element of the left jaw (1), so that said left jaw (1) has a cylindrical housing (14) into which the cylinder (6) of the damper (4) is inserted.

(15) The shank (13) of the damper (4) has an oscillating hook (15) at its outer end, that runs to a guide (16) coupled to the left jaw (1).

(16) This oscillating hook (15) is coupled to an end-of-stroke limit (17) and comprises blocking means (18) constituted by a protusion integrated in the oscillating hook (15) which is snapped into a seat provided in the guide (16) fixing the position of the damper in prestressed position.

(17) The new compact clamp eliminates the rebound effect during deceleration of the door. This deceleration is produced in a harmonic and linear throughout its duration and allows to implement damping for opening and closing in sliding doors of small widths, as shows in FIG. 6.