ES1063378U - Adaptable square bar steel shaft with clutch for electromechanical locks - Google Patents

Abstract

Adaptive spindle shaft with clutch for electromechanical locks, comprising an inner spindle shaft (1) to install an inner knob or handle handle, an outer spindle shaft (2) to install an outer handle, a clutch body (3) rotatably coupled with the inner shaft (1), a tubular shaft (4), a clutch shaft (5) with a cylindrical central part that rotates with adjustment within the tubular shaft (4) and which is between one end inner (6) engageable with the clutch body (3) and an outer end (7) with a square section that is reciprocal of an axial gap of the outer shaft (2), the interior and exterior designations being taken in relation to the respective inner and outer sides of the lock, characterized in that the tubular shaft (4) lacks axial immobilization means with respect to the clutch body (3), while, in relation to the dorsal face of the lock case (13), this clutch body (3) has a cylindrical extension (8) that protrudes from this dorsal face and that is provided with an external thread for the inside of a nut (9) in the form of a bowl that in its bottom has a hole of a size greater than the contour of the tubular axis (4) and less than the outer diameter of the cylindrical extension (8), there is an open washer (10) that is mounted in a perimeter groove (11) of the tubular shaft (4) that on its inner side is flush with the protruding front of the cylindrical extension (8) of the clutch body (3) and whose open washer (10) has an outer diameter smaller than that of this front of the cylindrical extension (8), and there is an elastoplastic gasket (12) that is installed at the bottom of the cup nut (9) and has an inner diameter that is less than the outside of the front of the cylindrical extension (8) and that is larger than the outside of the open washer (10). (Machine-translation by Google Translate, not legally binding)

Description

Adaptable square axle with clutch for electromechanical locks.

Field of the Invention

This invention concerns a square shaft. with clutch for electromechanical locks, which has capacity of adaptation in length according to the thickness of the door and the mode of installation in it.

In particular, this invention is applicable for an electromechanical lock equipped with a square shaft match that is integrated by an internal square shaft for install an inner handle of a knob or handle, an outer shaft of square to install an outer handle, a body of clutch engaged in rotation with the inner shaft, a tubular shaft, a clutch shaft with a cylindrical central part that rotates with adjustment within the tubular axis and that is between one end inside attachable with clutch body and one outer end with a square section that is reciprocal of an axial shaft shaft exterior, the interior and exterior designations being taken in relation to the respective inner and outer sides of the lock.

Prior art

In this field of the invention a solution in which a clutch body, an axle of clutch, a clutch sliding coupler, a sliding ring and a tubular shaft; where, the clutch body is coupled rotationally with the inner axis of square and is a bowl which has a rotary assembly integral with the inner shaft and that provides a coaxial cavity of polygonal section whose wall forms externally a cylindrical crown that is provided with two axially torn windows and diametrically opposed, the axis of clutch has a cylindrical part bounded between ends, outer and inner, such that, the outer end has a square section that is reciprocal of the axial shaft hollow outer square that is tubular and has a drill cross section for a first pin installed through this axis outer, and the inner end has a clutch head with Truncated pyramid shape, the clutch sliding coupler is pierced by a lace hole for a second pin that with Sliding adjustment cuts through the torn windows of the body of clutch and has an entree that is facing and is reciprocal of the clutch head, the sliding ring is provided with a perimeter channel, has sliding adjustment with respect to the crown of the clutch body and has a pair of holes for the second pin, the tubular shaft is the one that rotates dragging, the nut of the lock, has a cylindrical hollow with adjustment rotary with respect to the cylindrical part of the clutch shaft and it has an exterior of square section preferably equal to the of the outer square shaft, and this tubular shaft has two perforations for two third pins coupled through the side wall of the bowl formed by the body of clutch.

This constitution has a montage in which the inner shaft, clutch body, sliding coupler and tubular shaft rotate in solidarity, the first two because they are a same piece or two pieces tied together; clutch body and the sliding coupler because they are linked by the second pin; and the clutch body and the tubular shaft because They are linked by third pins. For its part, the outer shaft is rotatably coupled with the outer end square belonging to the clutch shaft whose part cylindrical is located with rotary adjustment inside the hole cylindrical tubular shaft.

A particularity of this known constitution is that the lock comes out of the manufacturing process provided with a square shaft of a certain length that obviously it serves for a certain door thickness and type of installation, But it does not serve universally. A drawback of this is that it is necessary to manufacture as many different locks as square shaft lengths are accurate to meet the market; which is especially serious considering the considerable price of this type of lock. Other inconveniences in relation to the previous one are that the warehouse that is necessary freezing is very important accounting value and requires a lot space availability; In addition, its packaging to serve the Market is more complex, expensive and bulky (higher cost of transport for distribution).

Explanation of the invention and advantages

Faced with this state of affairs, the invention that occupies us advocates a square shaft for a lock of the type that its constitution has been described above, which it consists in that the tubular axis lacks immobilization means axial with respect to the clutch body, while to the dorsal face of the lock case, this body of clutch has a cylindrical extension protruding from this dorsal face and that is provided with an external thread for the inside of a bowl-shaped nut that at its bottom has a hole larger than the contour of the tubular shaft and smaller that the outer diameter of the cylindrical extension, existing an open washer that is mounted in a perimeter groove of the tubular shaft that is flush with the front protruding from the cylindrical extension of the clutch body and whose open washer has an outside diameter smaller than that of this front of the cylindrical extension, and there is a joint elastoplastic that is installed at the bottom of the nut bowl and has an inside diameter that is smaller than the outside of the front of the cylindrical extension and that is greater than the outside of the open washer.

The constructive philosophy of the solution proposal consists of distorting the impracticable compact set whereby the tubular shaft (together with the clutch shaft and shaft outside) was forming a package with the clutch body, package that allowed the game of a sliding cupboard who was in charge of establishing the coupling / decoupling in turn from the performance of an electric motor.

For this purpose, the linkage is suppressed until now. made by the third pins for that purpose and, instead, a threaded assembly is established by which it is possible to separate the subset formed by the outer shaft, the clutch shaft and the tubular axis, with respect to the cylindrical extension of the body of clutch, that is, with respect to the lock case.

This recommended constitution solves a time all the inconveniences that have been mentioned before to the known embodiment that has been described. Now it will be enough storing, on the one hand, locks mounted all the same in the quantity that suits the needs of our market; and by on the other hand, store external screwable subsets of shafts of square of all the necessary measures for the various Door thicknesses and types of lock installation.

In this way, the fixed assets of the warehouse are adjusted to a minimum, the required storage space is also reduced, the packaging becomes easier and cheaper and the cost of distribution transport is reduced. As for the installation of the lock, it will be enough for the installer to carry a complete set of the screw-in sub-assemblies of square shafts according to the invention, from which he will choose and place " in situ " the one that is suitable for the installation in progress.

Drawings and references

To better understand the nature of the invention, in the attached drawings we represent an embodiment industrial that is merely illustrative and not limitative.

Figure 1 is an axial section showing a lock (13) installed on a door (14) by means of the square according to the invention.

Figure 2 is an enlarged view of detail II which is circled in figure 1.

Figure 3 is a purely illustrative detail. of the perimeter groove (11) of the tubular shaft (4).

Figure 4 is an exploded view in perspective that shows the object of the invention.

In these figures the following are indicated references:

one.-

Axis inside

2.-

Axis Exterior

3.-

Clutch body

4.-

Axis tubular

5.-

Axis clutch

6.-

Inner end of clutch shaft (5)

7.-

Outer end of clutch shaft (5)

8.-

Cylindrical extension of the body of clutch (3)

9.-

Bowl nut

10.-

Open washer

eleven.-

Perimeter groove of tubular shaft (4)

12.-

meeting

13.-

Lock

14.-

Door

Exhibition of a preferred embodiment

Regarding the drawings and references above listed, an execution mode is illustrated in the attached drawings preferred object of the invention, referred to an axis adaptable square with clutch for locks electromechanical, which is applicable for locks electromechanical equipped with a panic opening function of the which, as illustrated in Figure 1, comprise an inner shaft (1) of square to install an internal handle of knob or handle, an outer shaft (2) of square to install a handle outside, a clutch body (3) engaged in rotation with the shaft inside (1), a tubular shaft (4), a clutch shaft (5) with a cylindrical central part that rotates with adjustment within the shaft tubular (4) and which is between an inner end (6) attachable with the clutch body (3) and an outer end (7) with a section  square that is reciprocal of an axial hollow of the outer axis (2); where interior and exterior designations are taken with relation to the respective inner and outer sides of the lock.

Based on this known constitution, the object of this invention is that, unlike the first, now the tubular shaft (4) lacks means of axial immobilization with respect to the clutch body (3), at the same time which, in relation to the dorsal side of the lock case (13), this clutch body (3) has a cylindrical extension (8) that protrudes from this dorsal face and is provided with a thread outside for the inside of a bowl-shaped nut (9) that at its bottom it has a hole larger than the outline of the tubular shaft (4) and smaller than the outer diameter of the extension cylindrical (8), there is an open washer (10) that, by jump elastic, is mounted in a perimeter groove (11) of the shaft tubular (4) that on its inner side is flush with the front protruding from the cylindrical extension (8) of the body of clutch (3) and whose washer (10) has a smaller outside diameter that of this front of the cylindrical extension (8), and there is an elastoplastic gasket (12) that is installed in the bottom of the bowl nut (9) and has an inside diameter that is smaller than the outside of the front of the cylindrical extension (8) and that is larger than the outside of the open washer (10). He assembly of this recommended constitution is seen more clearly in the enlargement shown in figure 2, and its exploded view is well illustrated in the perspective of figure 4; in figure 3 it illustrates the perimeter groove (11) without the open washer (10).

The assembly of the invention is simple, fast and It does not require any special tools. On the one hand we have a lock (13) whose protrusion protrudes from its dorsal face cylindrical (8) with its external thread; on the other hand we have the nut (9), elastoplastic joint (12) and the package formed by the outer shaft (2), the clutch shaft (5) and the tubular shaft (4) with the washer open (10) installed in its perimeter groove (eleven). Then the inner end (6) of the tubular shaft (4) inside the clutch body (3), through the front of the cylindrical extension (8), reaching the position shown by figure 2, in which the clutch is in state disengaged; this position is determined by the top of penetration exerted by the open washer (10) on the front of the cylindrical extension (8); then with the board Elastoplastic (12) placed at the bottom of the nut (9) of bowl, proceed to screw it to end reaching the final mounting position shown in figure 2; the existence of The elastoplastic joint (12) favors the maintenance of the final screwing position and execution and firm tightening of this screwing is facilitated because the nut (9) has a knurling external. With all this the great advantages become very evident of the invention outlined above: the final operational constitution of the square shaft is established in the same place and time of the installation following the assembly procedure explained; the number of locks in the warehouse of the manufacturer or distributor it will be strictly necessary to supply your market with independent of what are the thicknesses of doors (14) and the type of installation to be addressed, as it will suffice with carry a complete set of lengths of the tubular shaft (4), and of the shaft corresponding clutch (5), and choose the appropriate one; he cost of warehouse property and its need for space are more reduced; The packaging is simpler and cheaper, as well as Distribution costs

Claims (1)

1. Adaptable square shaft with clutch for electromechanical locks, comprising an inner shaft (1) of a square to install an inner handle of a knob or handle, an outer shaft (2) of a square to install an outer handle, a clutch body (3 ) in rotation coupled with the inner shaft (1), a tubular shaft (4), a clutch shaft (5) with a cylindrical central part that rotates with adjustment within the tubular shaft (4) and is between one end inside (6) attachable with the clutch body (3) and an outer end (7) with a square section that is reciprocal of an axial hollow of the outer shaft (2), the interior and exterior designations being taken in relation to the respective inner and outer sides of the lock, characterized in that the tubular shaft (4) lacks axial immobilization means with respect to the clutch body (3), while, in relation to the dorsal face of the lock case (13 ), this clutch body (3) has a cylindrical extension (8) protruding from this dorsal face and which is provided with an external thread for the inside of a bowl-shaped nut (9) which at its bottom has a hole larger than the contour of the tubular axis ( 4) and smaller than the outer diameter of the cylindrical extension (8), there being an open washer (10) that is mounted in a perimeter groove (11) of the tubular shaft (4) that on its inner side is flush with the protruding front of the cylindrical extension (8) of the clutch body (3) and whose open washer (10) has an outer diameter smaller than that of this front of the cylindrical extension (8), and there is an elastoplastic gasket (12) that is installed at the bottom of the bowl nut (9) and has an inside diameter that is smaller than the outside of the front of the cylindrical extension (8) and that is larger than the outside of the open washer (10).