ES2338660T3 - ELEMENT OF A LOCK WITH FIXATION FOR A DRIVE ELEMENT. - Google Patents

Abstract

Lock element comprises a lock body (2), a locking element (4) that rotates relative to the lock body, and a cavity protruding into the lock body in which an actuating element (8, 8') coupled to the lock element and rotating relative to the lock body is removably fixed to a cylindrical fixing section (9). The fixing section is provided with a peripheral groove engaging with a catch element that is displaceably guided in the lock body radially to the axis of the fixing section and is loaded by a spring in the direction of the groove. Preferred Features: The lock body is a profiled cylinder.

Description

Element of a lock with fixation for a drive element.

The invention relates to an element of a lock with a lock body, with a closing element which can rotate with respect to the body of the lock, and with a drive element that can be coupled with the closure and can rotate with respect to the lock body.

Such lock elements go into action, for example, in conventional recessed locks in which a Corrugated cylinder serves as a lock body, and a latch or knob, as drive element. In the assembly of such recessed locks on a door, it is before the task of fixing the drive elements to the lock body in the simplest way possible, that saves space and pleasing to the view. In general it is not possible to mount, before mounting the door lock element, drive elements in the body of the lock on both sides, since the gap provided on the door for the element of the lock, it is so regulate less than the drive elements, so that first the element of the lock has to be pushed through the gap coupled, for example, with a drive element, with its farthest side of this drive element ahead, before then the other element of drive in the lock body. At least on one side of the door lock must be mounted then a drive element, after assembly of the body of the door lock. Especially in the case of systems electronic closing, there is additionally the problem of than in a configured drive element, for example as a knob, mechanical construction components must be housed and electronic, so that in comparison there is little available site for fixing the drive element in the body of  the lock.

A usual solution known for the current state of the technique, proposes to put at least one of the two elements of drive on a tree that extends through the door lock, and fix it with the help of an element of fixation acting radially on the shaft, for example a captive screw However, this solution is not satisfactory. in sight, since the fixing element is visible on the face outside of the drive element. In addition, for a fixation sufficiently stable a solid tree is necessary, which limits the available constructive space for elements mechanical and electronic constructs. In addition, it is relatively expensive assembly and disassembly of a drive element that It can be set this way.

In the document FR-A-1 480 360 has been made public a lock element that on one side of the lock must be open with a key and on the other side of the lock with a rotating hand The rotating hand is supported with a stem, being able to rotate in the corresponding body of the lock, and axially immobilized by an element of fixation. The fixing element that sits on the body of the lock, penetrates for this purpose, into a peripheral groove configured on the stem.

Document GB 853 801 A makes public a door handle that with a hollow tree sector, can be fitted in removable form on a square placed across the latch. The fixing is carried out by means of a pin lock placed in the square, and that locks elastically in a hole in the door handle.

It is the mission of the invention to make available a lock element of the type mentioned at the beginning, in which can fix detachable, a shaped drive element Simple and taking up little space.

This mission is solved according to the invention. by means of the characteristic notes of claim 1. The lock element presents here a cavity that goes into the body of the lock, and in which it can be fixed detachable the drive element with a cylindrical fixing sector. The cylindrical fixing sector of the drive element it has a throat that can be locked on the outside with a retaining element that is movable guided in the body of the lock, radially with respect to the sector axis fixing cylindrical, and applied by means of a spring in the throat direction of the drive element. So the drive element is secured against axial displacement, by interlocking the throat with the corresponding retention element Together, you practically do not miss no constructive space for fixing on the sides of the drive element, so that, for example, on the knob of a door of an electronic lock, all the interior space Door knob is available for mechanical components and electronic In addition, in the construction according to the invention it is not visible from outside any type of fixing elements, which is Very advantageous with respect to the design of the lock.

According to the invention, both the element of retention as well as the lock body, present each one a drill, having both holes at least essentially the same diameter, and running parallel to the axis of the sector fixing cylindrical. The two drills are arranged here of so that the drill through the part of the lock body is extend from the end of the lock body, where it you can fix the drive element, until the hole of the retention element resting on the lock body, and that, with the compressed spring, the two holes are aligned one with another and, with the spring distended, overlap by zones. So that, with the compressed spring, the two holes are located axially one after another. Such an arrangement allows a separation of the interlocking of the retention element with the drive element, with the help of an eccentric tool special. A similar tool looks like a screwdriver with a handle and with a round metal rod fixed on it. Tip of this metal rod forms a cylindrical appendix whose section transverse is smaller than that of the metal rod, and that in the end of the front side of the metal rod is arranged eccentric to this. With the spring extended, the two holes are overlap only by zones, and an eccentric tool can be insert with its cylindrical appendix through the hole through the part of the lock body, in the overlapping area of the drill provided in the retention element. If now the eccentric tool, the retention element comes out of the throat of the fixing sector, and the spring is compressed. Both drills line up one after the other, and the interlocking is undone of the retention element with the actuating element.

Advantageous ways of realizing the invention, are described in the description of the figures as well as in the secondary claims.

The cylindrical fixing sector can present at its end that penetrates the body of the lock, a conical reduction that allows a displacement of the element of retention against spring tension when inserting the element of drive in the cavity of the lock body. When he body of the lock is already mounted on the lock of a door, the drive element can then be fixed in the Lock element easily. When inserting the element of drive with its fixing sector reduced conically, in the cavity of the lock body, the force exerted upon insertion, it is transformed by the oblique surface in the sector of conical ending fixation, in a radially flowing force that  You can compress the spring. When the drive element is has gotten enough into the cavity, his throat reaches fit with the retention element, pressing this one here for the spring in the direction of the throat. So the element of drive can be fixed by simple plugging, without  for this, no tool was necessary, avoiding it Reliable time, mounting errors.

According to an advantageous embodiment of the invention, the retention element may be guided along of a particularly linear slide, which runs inside the body of the lock, its movement being limited in two opposite directions that run radially relative to the axis of the cylindrical fixing sector, using stop elements. So therefore, referring to the interior space of the fixing element, at length of the slide that runs completely outside the fixing element, the retention element is housed saving space, and with the help of the stop elements the path in which the retention element can move radially with respect to the axis of the cylindrical fixing sector. In one of the extreme positions of the retention element, the sector for fixing the drive element, it is interlocked with the retention element, in the opposite extreme position, the element retention is distanced from the throat of the sector fixation, so that between retaining element and throat not there is no contact, so that the drive element with its cylindrical fixing sector, can be moved axially in The body of the lock.

As stop elements they can serve, by for example, an elongated hole provided in the retention element, and a pin provided in the body of the lock, which extends Through the elongated hole. The greater the extension longitudinal of the elongated hole compared to the diameter of the aforementioned spike, the greater the path in which you can move the retention element in radial direction. A design similar is easily achievable and, in addition, durable and without maintenance.

According to a preferred embodiment of the invention, the spring that applies the retention element in the throat direction of the fixing sector, may be disposed in a recess of the retention element, which extends radial with respect to the axis of the cylindrical fixing sector. The spike already mentioned before, which serves as a stop element, can form with an area that extends inwards in this emptying, an element of support for the dock. The emptying in which the spring can be open on the surface of the body of the lock, but in the same way you can also imagine emptying Closed in the form of a camera.

The diameter of each of the two holes that run parallel to the axis of the cylindrical fixing sector, it can ascend to between 2 mm and 5 mm, especially about 3 mm. With the dock relaxed, the two drills overlap preferably approximately half its diameter. Thus, for a reasonable depth of fit between retaining element and throat, optimal dynamic transmission is obtained by applying a eccentric tool to undo the interlocking.

In the manner explained, the element of drive can be released from the lock body with relative simplicity, notwithstanding the fact that to undo the interlocking a special tool is necessary, offers a some protection against undue separation of the element of drive Here it is especially advantageous that the element of drive can be mounted and disassembled at any time without that the lock element is damaged, or without appearing wear phenomena.

The lock element according to the invention you can present a supported tree and can turn centered on the cavity of the lock body, which at one end is united solidarity in rotation with a second element of drive while the first drive element It has a housing for the other end of the tree. With the help of additional coupling elements, because of the existing tree, it is possible to create a force drag joint between the two drive elements. Since according to the invention the tree it is not used for fixing the first drive element, It can also be configured as a hollow tree, so has additional space for building components electronic, cables or similar.

The fixing sector may present frontally at its end that penetrates the body cavity of the lock, a first dynamic transmission element that can contact a second transmission element corresponding dynamics which, in turn, is coupled with solidarity in rotation with the closing element. This way you can create a force drag joint between the fixed fixing sector detachable, and the closing element, so that when the drive element, rotate the closing element. How Dynamic transmission elements are possible, for example, a groove that runs radially, and at least one shoulder that It corresponds with her.

The body of the lock can have, for For example, the shape of a standard normalized corrugated cylinder in trade. A similar lock body can be used in standard door locks with standardized dimensions, without requiring additional adapters.

A lock body formed of such way, it consists of a superior sector with cross section cylindrical, and of a lower sector with a cross section elongated The area of the retention element, guided in the sector lower body of the lock, in a direction that runs perpendicular to the longitudinal central plane of the element of lock, it has to be narrower than the lower sector of the lock body. To get a better transmission dynamics between the retention element and the fixing sector, the retention element may present at its upper end, a interlocking zone that fits the circular throat of the fixing sector, and that in a direction that runs perpendicular to the longitudinal central plane of the element of lock, has a width greater than the lower sector of the corrugated cylinder That area of the throat that fits with the retention element, it is extended in this way, so that You can get a better grip.

The following describes in detail the invention, by the hand of a preferred embodiment, and With reference to the attached drawings. They are shown here.

Figure 1 a section through the central plane longitudinal of a lock element according to the invention, being  interlocked the retention element with the element of drive, with an eccentric tool inserted in the lock element.

Figure 1A an enlarged detail of Figure 1, comprising the retention element and the tip of the tool eccentric

Figure 1B the same detail as in the figure 1A, in which unlike in Figure 1A, the element of retention is not interlocked with the drive element, and the fixing sector of the drive element, is not completely inserted into the cavity by the body part of the lock.

Figure 2 a longitudinal section of a eccentric tool to undo the interlocking of the element of retention with the drive element.

Figure 2A an enlarged detail of Figure 2, which comprises the tip of the eccentric tool.

Figure 3 a perspective view of the element lock according to the invention, with drive elements suitable for mounting a knob.

Figure 4 a view of an interlocking sector according to the invention, of the retention element, with the direction of the visual one running perpendicular to the central longitudinal plane of the lock element.

The body 2 of the lock represented in the Figure 1, has the outer shape of a corrugated cylinder. Approximately in the center of the body 2 of the lock is found in the represented embodiment example, an element 4 of closing that can turn with respect to the body of the lock, with a pallet 6 at its lower end. In other embodiments the closure element can be arranged asymmetrically in the body of the lock. The lock element 2 shown has in its two opposite ends two drive elements 8, 8 ' each suitable for mounting a knob. The element 8 ' drive right is joined in solidarity in rotation with a tree 18. Tree 18 is arranged centered in a cavity 3 of cylindrical shape (see figure 1B) in the center of the upper zone cylindrical shape of the lock body 2, and supported being able to turn in the body 2 of the lock. For its part presents in turn a cylindrical cavity 19 that extends all along of tree 18, through which they can be guided, for example, cables. The left drive element 8 is appropriate, for example, for mounting a knob. On his side turned towards him body 2 of the lock, has a cylindrical sector 9 fixing which is inside the cylindrical cavity 3 of the body 2 of the lock, and for its part presents a passage space centered for tree 18. Through this passage space tree 18 extends to through the entire fixing sector 9, to the element 8 of drive

In figure 1, the fixing sector 9 is interlocked with body 2 of the lock, and is introduced both in the cavity 3 of the body 2 of the lock, which frontally collides in an intermediate ring 7 which, in turn, is connected with force drag with the closing element 4. Therefore the cavity 3 is almost completely filled with fixing sector 9.

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In the longitudinal extended lower sector of the lock body 2 is configured, perpendicular to its plane longitudinal center, a hole 20 that serves to fix the lock element on a door using a shutter screw not represented

In Figure 1A, the enlarged mechanism for locking the drive element 8 in the cavity 3 of the body 2 of the lock. Each of figures 1A and 1B show here the same detail of the body 2 of the lock. He nailed state represented in figure 1, is shown in the Figure 1A, while in Figure 1B, the drive element 8 only partially inserted into cavity 3 of body 2 of the lock, and still not locked with element 10 of retention.

In figure 1A the element can be recognized 10 which is guided in a slide 32 inside of the body 2 of the lock, and can be moved radially with respect to the axis m of the cylindrical fixing sector 9. In his face upper the retention element 10 has a zone 16 of interlocking that is shown more exactly in Figure 3. The interlocking zone 16 is held in element 10 of interlocking, by a form-fixing element 34 Barrette.

The fixing sector 9 of element 8 of drive, has a circular throat 24 on the outside. The interlocking sector 16 of the retention element 9 is seated in this throat 24, so that the drive element 8 rotate of course around the m-axis, but cannot move in axial direction

A spring 22 is arranged in a recess 30 of round cross section inside the element 10 of retention, corresponding the cross section of the drain 30 in the essential to the diameter of the spring 22. The emptying 30 is open down; the spring 22 is supported with its lower end in a pin 14 which is inserted perpendicular to the central plane longitudinal of the body 2 of the lock, through its zone Bottom extended along. The spike 14 is attached here in a circular drill of the lock body 2, which has the same diameter as the spike 14. At the same time the spike 14 runs through an elongated hole 15 in the retaining element 10, which allows a radial displacement of the element 10 of retention. Due to the combined action of elongated hole 15 and of pin 14, the possibility of radial displacement of the element 10 retention, is limited up and down. In the Figure 1A the spring is distended and compresses the element 10 of upward retention and therefore element 16 of throat interlock 24. Pin 14 touches in this position the upper end of the elongated hole 15.

In Figure 1B the cylindrical sector 9 of fixation of drive element 8, not inserted totally in the cavity 3 of the body 2 of the lock.

According to Figure 1B, the fixing sector 9 presents on its face 9 'front that penetrates the body 2 of the lock, a conical reduction 5. By entering item 8 of drive with its fixing sector 9 in cavity 3, by the oblique surface on the front face of the fixing sector 9, the retention element 10 is pressed down and therefore compress spring 22, as shown in Figure 1B. When he drive element 8 is inserted fully into cavity 3, the retention element 10 arrives with its interlocking sector 16 to fit the throat 24. The spring 22 is distended and the drive element is interlocked with the body of the lock as shown in figure 1A.

Otherwise, in Figures 1A and 1B you can recognize holes 12 and 28 that serve to undo the interlocking  explained. A drill 12 in the body 2 of the lock, and a hole 28 in the retaining element 10, each have the same diameter d, and the two run parallel to the m axis of sector 9 fixing cylindrical. With the spring 22 compressed (figure 1B), the drill 12 in the body 2 of the lock and drill 28 in the retaining element 10, are aligned with each other and therefore They form a cylindrical through hole. When item 10 of retention is interlocked with drive element 8, it is say, when the spring is distended as shown in the Figure 1A, the two holes 12, 28 are offset one in respect to the other, and overlap approximately half of its diameter d.

To undo the interlocking you can use an eccentric tool 40. In Figures 1, 1A and 1B, recognizes an eccentric tool 40 that is tucked through the drill 12 and drill 28. In figures 2 and 2A is represented the isolated tool. A similar tool is It consists of a handle 37 and a metal rod 36 with a section round transverse, having to correspond the diameter of the rod 36 approximately to the diameter d of the holes 12, 28 in the body 2 of the lock or in the retaining element 10. At end of the front side of the tool is an appendix 38 smaller cylindrical, eccentric arrangement, whose diameter should be correspond at most to the overlap of the two holes 12, 28 in the state of the lock element, shown in the figure 1A. Through the hole 12 in the lock body, with the spring 22 distended, tool 40 can be introduced eccentric with its appendix 38 of the cylinder in hole 28 in the retention element 10 (figure 1A). If now the tool, cylindrical appendix 40 pulls element 10 of retention down and therefore the joint between the drive element 8 and the lock body 2, so that the drive element 8 can be removed from the cavity 3 in body 2 of the lock.

In figure 3 the lock element 2 according to The invention is represented in perspective. Down the slide 32 open down, element 10 can be recognized in its center retention with the drain 30 open down. Above it recognizes pin 14 that serves as a stopper element and at the same time supports spring 22 not visible in figure 2. Zone 16 of interlocking of retaining element 10, is located in a slit-shaped recess of the lock body 2, perpendicular to its central longitudinal plane.

In figure 4 the enlarged retention element 10. In interlocking zone 16 it is about of a flat metal part whose surface is located in the essential perpendicular to the m axis of the cylindrical sector 9 of fixation. At its lower end, the interlocking zone 16 has a hole 17 through which a pin can be inserted for the fixing of the locking zone 16 in the element 10 of retention. The interlocking zone 16 of the element 10 of retention, in a direction that runs perpendicular to the plane longitudinal center of the lock element, is narrower than the lower sector of the body 2 of the lock. Above this zone, the interlocking zone 16 extends laterally in the indicated direction, and then has a width greater than the lower sector of body 2 of the lock. At its upper end the interlocking zone 16 is sickle-shaped, so that it is complementary to throat 24 annularly in sector 9 of fixing, and at the same time does not protrude from the outer contour of the 2 body of the lock.

In summary the invention relates to an element of lock with a body 2 of the lock, with an element 4 of lock that can rotate with respect to the body 2 of the lock, and with a cavity 3 that enters the body 2 of the lock, and in which can be fixed detachable a drive element 8 with a cylindrical fixing sector 9, and which can be coupled with the closure element 4 and rotate with respect to the body 2 of the lock. The fixing sector 9 of the drive element 8 has externally a circular throat 24 that can be interlocked with a retention element 10. The retention element 10 is guided to along a slide 32 that runs inside the body 2 of the lock, and can be moved radially relative to the m axis of the cylindrical fixing sector 9, between two extreme positions. With a spring 22 the retaining element 10 is pre-tensioned in the direction of the throat 24 of the fixing sector 9.

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List of reference symbols

2

Lock body

3

Cylindrical cavity

4

Closing element

5

Conical reduction

6

Pallet

7

Intermediate ring

8

Drive element

8 '

Drive element

9

Cylindrical fixing sector

9 '

Front face of the cylindrical sector of fixation

10

Retention element

12

Drill

14

Spike

fifteen

Elongated hole

16

Interlocking zone

17

Hole in the interlocking zone

18

Tree

19

Cavity

twenty

Mounting hole

22

Dock

24

Throat

28

Drill

30

Emptying

32

Slide

3. 4

Fixing element

36

Metal rod

37

Mango

38

Cylinder appendix

40

Eccentric tool

d

Bore diameter 12 and 28

m

Cylindrical fixing sector 9 axis

Claims (10)

1. Lock element with a body (2) of the lock, with a closing element (4) that can rotate with respect to the body (2) of the lock, with a cavity (3) that enters the body (2 ) of the lock, and in which a drive element (8) can be fixed detachably with a cylindrical fixing sector (9), and which can be coupled with the closing element (4) and rotate with respect to the body (2 ) of the lock, the fixing sector (9) of the externally actuating element (8) having a circular throat (24) that can be interlocked with a retaining element (10) which is guided movable in the body (2) of the lock radially with respect to the axis (m) of the cylindrical fixing sector (9), and by means of a spring (22) is applied in the direction of the throat (24) of the actuating element (8), characterized in that the element (10 ) of retention and the body (2) of the lock each have a hole (12, 28), the two holes having (12, 28) at least essentially, the same diameter (d), and running parallel to the axis (m) of the cylindrical fixing sector (9), because the hole (12) on the part of the lock body is extends from the end of the body (2) of the lock, in which the actuating element (8) can be fixed, to the retaining element (10) supported on the body (2) of the lock, and because, with the compressed spring (22), the two holes (12, 28) are aligned with each other and, with the spring (22) distended, overlap by zones. 2. Lock element according to claim 1, characterized in that the fixing sector (9) has at its end that penetrates the body of the lock, a conical reduction (5) that allows a movement of the retention element (10) against the tension of the spring when the drive element (8) is inserted into the cavity (3) of the body (2) of the lock. 3. Lock element according to claim 1 or 2, characterized in that the retention element (10) is guided along a slide (32) that runs inside the body (2) of the lock, its movement being limited in two opposite directions that run radially with respect to the axis (m) of the cylindrical fixing sector (9), by means of stop elements (14, 15). 4. Lock element according to claim 3, characterized in that the stop elements (14, 15) are made by an elongated hole (15) provided in the retaining element (10), and a pin (14) provided on the side of the body of the lock, which extends through the elongated hole (15). 5. Lock element according to claim 4, characterized in that the spring (22) is arranged in a recess (30) of the retaining element (10), which extends radially with respect to the axis (m) of the cylindrical sector (9) of fixing, forming the pin (14) with its area extending inwards in this recess (30), a support element for the spring (22). 6. Lock element according to one of the preceding claims, characterized in that the diameter (d) of each of the two holes (12, 28) in the retaining element (10) and in the body (2) of the lock, which run parallel to the axis (m) of the cylindrical fixing sector (9), amounts to between 2 mm and 5 mm, especially and essentially 3 mm, and with the spring (22) extended, the two holes (12 , 28) overlap approximately half of its diameter (d). 7. Lock element according to one of the preceding claims, characterized in that it has a supported shaft (18) that can rotate centered on the cavity (3) of the body (2) of the lock, which at one end is connected in rotation. with a second drive element (8 '), while the first drive element (8) has a housing for the other end of the shaft (18). 8. Lock element according to one of the preceding claims, characterized in that the fixing sector (9) has a dynamic transmission element that can be brought into contact with a second element frontally at its end that penetrates the cavity (3). corresponding dynamic transmission which is coupled in rotation with the closing element (4). 9. Lock element according to one of the preceding claims, characterized in that the body (2) of the lock is in the form of a corrugated cylinder. 10. Lock element according to claim 9, the corrugated cylinder being composed of an upper sector with cylindrical cross-section, and of a lower sector with an elongated cross-section, characterized in that the area of the retention element (10) guided in the sector lower of the corrugated cylinder, in a direction that runs perpendicular to the longitudinal central plane of the lock element (2), is narrower than the lower sector of the corrugated cylinder, and because the retaining element (10) has above this area, an interlocking zone (16) that fits the circular throat (24) of the fixing sector (9), and which in the aforementioned direction has a width greater than the lower sector of the corrugated cylinder.