JP2003534470A - Closure devices, especially for motor vehicles - Google Patents

Abstract

(57) Abstract: At least one door is provided with a closing cylinder, which can be operated by a key (10) having a cord path (13) on its face side (11), in particular for motor vehicles. In order to improve the closing device for the following, the following is proposed. That is, according to the prior art, the profile (14) for typing the key (10) arranged in the outer area on the surface side (11) of the key (10) is applied on the narrow side (12) of the key (10). In the form of a groove (14) inserted into the keyway of the closing cylinder, and a projection is provided on the upper and / or lower narrow surface of the key passage of the closing cylinder, which projection inserts the key (10). At this time, it engages with the groove (14 ') on the key side. According to the measure according to the invention, the edge of the face (11) of the key (10) can be passed close to the cord path (13), so that the height of the key (10) can be reduced, Furthermore, the key (10) does not wobble too much when inserted into the closing cylinder, due to the guidance of the projection in the groove (14 ').

Description

Detailed Description of the Invention

The present invention is directed to a closure device as described in the preamble of claim 1. The field of application of the present invention is particularly directed to automobiles and the like.

In a closure device such as that described above, it is known in the key manufactured by Huf to arrange the cord paths on both sides of the key rotationally symmetrically with respect to the longitudinal axis of the key. A key-typing profile is mounted in the area of the edges on each side. These profiles on both face sides of the key are likewise arranged rotationally symmetrical to each other. The rotationally symmetrical arrangement of the cord path and the profile allows the key to be inserted into the key passage of the closed cylinder in both possible insertion positions.

The closing cylinder, which is preferably arranged in the door or flap of the vehicle, locks or unlocks the operating device for opening the lock by operating a key inserted in the keyway or of a switch. Cause an operation.

In order to prevent each key from being inserted into its respective closed cylinder, as already mentioned above, a profile is provided in the outer region of the face side. The profile of the key for the different types of closing cylinders is then differently shaped and has different dimensions, and on the correspondingly formed bridging piece / protrusion on the side wall of the keyway. Each corresponds.

The cord path requires a certain minimum height for manufacturing engineering reasons, which does not allow the tumbler to be friction-free hooked in the code path when the key is inserted into the keyway. It also guarantees passage.

Since the minimum structural height of the key to which it belongs is limited by the height and profile of the technically conditioned cord path, the prying resistance of these locks is further reduced by the reduction of the keyway. The inability to do is a disadvantage in such closure devices.

The reduction in key height in known keys results in a profile located outside the face side of the key traversing the chord path and opening it. At this time, the key can no longer function.

The object of the invention is to develop a closure device as described in the preamble to the first claim, avoiding the disadvantages mentioned above. According to the invention, this
It is achieved by the measures recited in the characterizing part of claim 1 with the following special meanings added.

According to the first claim, it suffices if the profile used for the distinction of the various key types is in the form of a groove and is arranged on at least one narrow side.
By this measure, the key height can be further reduced since the chord path is no longer dissected by the profile. Due to the possible reduction of the keyway, the force which can be maximally exerted is also reduced by the respective mm which the prying tool has to be made smaller in order to still be inserted into the keyway, so that the closing cylinder It also prevents prying open.

Furthermore, the key according to the invention reduces wobble when the groove is arranged on one or both narrow sides of the key and thus in the case of repeated insertion and operation of the closing cylinder by the key. And the surprising effect of producing much less wear of the tumbler.

According to the second claim, in the key-typing groove, a groove closed towards the three longitudinal sides becomes a problem, this groove facing both the inside of the key and of the key. It is closed toward the side of.

If, as considered in claim 3, the grooves are arranged on opposite facing narrow surfaces of each of the keys, this key will be in the keyway at each possible insertion position. Can be inserted. At this time, upside down keys become a problem.

According to the fourth aspect of the present invention, the protrusion / bridge piece is arranged at an appropriate position in the key passage, and when the key is inserted into the key passage, the protrusion / bridge is formed. It is even more significant that the tangs engage in the groove (s) of the key.

According to the fifth aspect of the invention, the groove arranged in the key has a stopper surface at its head-side end, and this stopper surface is formed on the head surface arranged in the protrusion. It can also be meaningful when riding up, which limits the key insertion depth.

Due to the polyhedral relief of the groove, which can be varied for each key type considered according to claim 7, a large number of surfaces, especially with respect to their mutual angle and the shape of the surfaces, can be achieved. Key types can be manufactured.

This versatility is still increased by the combination of the radial and flat surface sections of the groove surface.

According to claim 9, the projection / bridging piece which penetrates into the groove has corresponding side surfaces, which are at least partly on the corresponding key side in the groove. It is meaningful if they are shape-coupled to the surface section.

Due to the various reliefs of the groove or the corresponding reliefs of the projections in the keyway, it is possible to attach a number of auxiliary keys to the main key in the closure system.

Other measures and advantages of the invention are apparent from the dependent claims, the following description and the drawings. The invention is shown in the drawings for one embodiment.

The closure device according to the invention is directed in particular to a closure cylinder for the inner channel or hole recess key.

The closing device according to the invention comprises a closing cylinder 20, the cylinder core (not shown here) of this closing cylinder being rotatable in a cylinder housing (not shown here). It is normally locked by a number of loaded tumblers 27. In this case, the plate tumbler is a problem. These tumblers 27 no longer project beyond the peripheral surface of the cylinder core when the regular key 10 having the cord path 13 on its face side 11 is inserted, so that the cylinder core lies within the cylinder housing. It is set to be rotatable. Due to the rotational movement of the inserted key 10, the user then unlocks or locks the operating device by means of the closing device, depending on the direction of rotation of the key 10.

When the key 10 is inserted into the key passage 21 of the closed cylinder 20 as schematically shown in FIG. 5, the tumbler 27 arranged in the key passage 21 has the tumbler 27 arranged on both sides of the key 10 in this embodiment. It passes through a cord path 13 arranged on the side 11. The tumbler 27 moves according to the terrain of the guide surface 16 arranged along the cord path 13 when inserting the key 10 into the closed cylinder 20. In the final position of the key 10, the tumbler is in that position, which allows the cylinder core of the closed cylinder to rotate.

In the key 10 according to the invention as shown in FIGS. 1 to 3, the grooves 14 ′, 14 ″ are provided.
Are arranged on both narrow sides 12 of the key 10. These grooves 14 ', 14 "
Has a relief 17, which consists of side-by-side rows of various surface sections 18, 19. With this side-by-side row of the different face sections 18, 19 many different groove types can be produced, so that each key 10 can be inserted into each closing cylinder 20 of the provided configuration. Do not mean.

In the primary key embodiment of the closure system as shown in FIG. 2, the cylindrical surface section 18
Are arranged side by side on flat surface sections 19, which form the reliefs 17 of the groove 14 ′. In the auxiliary key 10 'shown in cross section in FIG. 3, to which the main key 10 shown in FIG. 2 also belongs, a flat surface section 19 in the relief of the groove 14 ".
Only are placed. The auxiliary key 10 'according to FIG. 3 corresponds to the primary key 1 shown in FIG.
It cannot be plugged into the main closed cylinder assigned to zero only. On the contrary, however, the main key 10 can also be inserted and operated in the closed cylinder assigned to the auxiliary key 10 '.

As opposed pieces of the groove on the key side, projections 24 are arranged on the narrow side 22 of the key passage 21 of the closing cylinder 20 (see FIG. 5), these projections with respect to the longitudinal course of the key passage 22. Are arranged in parallel.

The protrusion 24 arranged in the key passage 21 has a peripheral surface 26 arranged on its surface and extending parallel to its longitudinal axis. The relief on the outside of the projection 26 then forms a negative image of the groove-side relief 17 of the key 10 which is aligned with this closing cylinder 20. Therefore, when the key 10 is inserted into the key passage 21, the protrusion 24 provided is formally coupled and aligned in the groove 14 '.

However, in this case, when the main key is inserted into the key passage of the auxiliary closing cylinder, there is only a partial form-fitting connection between the groove and the respective projection due to the projection profiles arranged side by side. Be careful. Thus, the primary key 10 according to FIG.
Can be plugged into a closed cylinder with protruding relief due to the negative formation of the groove 14 "according to FIG.

FIG. 4 also shows a cross section of a key 10 ″ according to the state of the art, which is reduced in its height, the profile 14 of which the key is being typed being unchanged. The profile 14 is attached to the cord path 1 at a position where the cord path 13 approaches the end of the surface side 11, respectively.
Open three. If the maximum height of such a tip of the cord path 13 is limited, at the same time the number of deformability of the cord path 13 is also considerably reduced. Much fewer keys with different code paths 13 can be constructed. The same drawbacks result from the reduction of profile 14 when the profile is limited to a given depth. This also limits the key type deformations considerably.

[Brief description of drawings]

[Figure 1]   FIG. 3 is a perspective view schematically showing a key according to the present invention.

[Fig. 2]   FIG. 2 is a cross-sectional view taken along the line II-II ′ of FIG. 1.

[Figure 3]   FIG. 6 is a cross-sectional view corresponding to FIG. 2 of another embodiment of the key according to the present invention.

4 is a cross-sectional view corresponding to FIG. 2 of a prior art inner path key whose height corresponds to that of the key in FIGS. 2 and 3.

[Figure 5]   3 is a schematic view of a closed cylinder according to the invention in a vehicle door.

Claims (11)

[Claims] 1. On the vehicle side, it comprises at least one door (30), a closing cylinder (20) in a flap or the like, the closing cylinder (20) having a keyway (21) and a closing cylinder (20). 20) comprises a key (10) insertable in a key passage (21) of the closing cylinder (20) from the locking position of the lock to the unlocking position of the lock and vice versa. Can be transferred and / or the key operates a switch, the key (10) having a face side (11) and a narrow side (12), and a cord path (13) on the face side (11). ) Is arranged, and at least one profile (14) typing the key (10) is arranged next to the code path (13) in the key (10), in particular for motor vehicles To There are, key (10; 10 ') the profile (14) to type the at least one
Keys (10; 10) in the form of grooves (14 '; 14 ") on two narrow sides (12)
') Insertion device, especially for motor vehicles. 2. A groove (14 '; 14 ") is provided on the narrow side of the key (10; 10').
Closure device according to claim 1, characterized in that it is closed towards 12). 3. The groove (14 ′; 14 ″) according to claim 1, characterized in that the grooves (14 ′; 14 ″) are arranged in two opposite narrow surfaces (12) of the key (10; 10 ′). Closure device. 4. A projection (24) is arranged on the upper and / or lower narrow side (12) of the keyway (21), which projection is inserted into the closed cylinder. Closure device according to claim 1, characterized in that it is engaged in one or more grooves (14 ', 14 ") of 10'). 5. The end surface (15) arranged in the groove (14 ′, 14 ″) and the head surface (25) arranged in the protrusion (24) have a depth at which the key (10, 10 ′) is inserted. Closure device according to one of claims 1 to 4, characterized in that it has a defined height. 6. The cord path (13) has guide surfaces (1) directed upward and downward.
Closure device according to one of claims 1 and 5, characterized in that it is delimited by 6). 7. Closure device according to one of claims 1 to 6, characterized in that the grooves (14 ', 14 ") have a multi-sided relief (17). 8. The polyhedral relief (17) is characterized in that the cylindrical surface section (18) and the flat surface section (19) are arranged next to each other in a key-type-dependent sequence. A closure device according to one of claims 1 to 7. 9. The projections (24) have peripheral surfaces (26) which are at least partly when the key (10, 19 ') is inserted into the closing cylinder (20). Closure device according to one of the preceding claims, characterized in that it is form-fitted to a surface section (18, 19) arranged in the key-side groove (14 ', 14 "). 10. Closure system according to one of claims 1 to 9, characterized in that the main and auxiliary keys of the closure system are typed by grooves (14 ', 14 "). 11. Closing device according to claim 1, characterized in that the keys (10, 10 ′) are upside down keys.