CN100497873C - Outline system for forming flat key and keyhole section and the flat key - Google Patents

Abstract

The invention relates to a profile system for forming the cross-section of flat keys (1, 7, 10, 15) and of key channels (9) in closing cylinders. Said system comprises grooves (2, 3, 11, 12, 13, 13', 14, 14', 16) or ribs (2', 3') of a guiding and variation profile. A branching groove (4, 8, 17) or branching rib (4', 8') branches off from at least one groove (2, 3, 16) or rib (2', 3'), and its groove direction or angular position are different from that of the groove (2, 3, 16) or rib (2', 3') from which it branches off, diverging at a 60 DEG angle, for example. The branching grooves (4, 8, 17) or branching ribs (4', 8') can branch off as a bifurcation from the end of a groove (4, 8, 17) or rib (2', 3'), but preferably from a lateral flank of a groove (4, 8, 17).

Description

Form the profile system and the flat key thereof of flat key and key channel cross section

Technical field

The present invention relates to a kind of profile system, this profile system specialization have flat basically and approximate plane-parallel flat key cross section and lock in corresponding key or key channel, particularly be used for constituting the lock system, on the flat side of key bit and key, have rib and groove, specify part as profile distortion and guide-contour.The invention still further relates to the flat key that comprises this profile system.

The protection of life, privacy and property has significant correlation.Therefore, special importance just ascribes lock ﹠ key to.In locking system, one or more locks limit and acquisition enters the zone by every key of system is distributed to.The cross-sectional profiles by key in the lock system and the cross section of key can obtain distribution and the eliminating about the key and the lock of lock function, and this lock system is based on lock and flat key.Only accurately mate or surround under the situation of this cross section at the cross section of the cross-sectional profiles of key and flat key, key just can be fit to lock.In case between the cross section of flat key and the cross section of key intersection is arranged, key just no longer is fit to have the lock of specific lock so.

Certainly, by means of profile, i.e. the cross section of the key of the cross section of the cross section of key, particularly flat key, and lock, the associating that keeps key and lock, this also is used for not being the single lock and the single key of the intrinsic part of lock system.

The fact that key can not directly duplicate can satisfy security needs.Check that by safety certificate and identification the people who is authorized to can obtain standby key there from original producer.If can obtain blank on market, by producing the heel teeth pattern in key front, locksmith's service can easily utilize profiling machine to produce standby key so.In addition, if profiling machine can sense the cross-sectional profiles on the original key plane, and if can utilize suitable milling cutter, so even can produce standby key by the cutting metal plate.Like this, if freely obtaining on the restricted market always so far, owing to be difficult to obtain blank, be impossible so under restricted situation, make standby key with key profile, locksmith's service nowadays has can be according to the technology of heel teeth pattern and profile duplication key.The profile of key can be from the side sensing mechanically or optically.The back as a result of side scanning is followed by the insertion and the shift-in of one or several milling cutter, in order to produce U-shaped, V-arrangement or rectangular recess.By the inclination blank, can also be with respect to the center line of profile cross section cutting flutes at angle.For example with the form of teeth (backed-off) groove.

Background technology

Know a kind of key with rib from DE3136314A1, described rib horizontal expansion is considerably beyond the imaginary side line of supposition central cross-section, thereby makes this key just not have plane and approximately parallel plane.These outstanding ribs have cuts the into groove of the direction of motion of pin.When the outstanding rib of key was rasped away, key just can easily insert key channel, even may influence locking.Key profile should be set to, and can not succeed to its processing by flat milling.

Summary of the invention

The invention provides a kind of profile system that is used to limit the flat key cross section of lock, it is used for lock and lock system, has the key plane surface plane and parallel, the key bit of key back and positioned opposite, this key bit has tooth at front surface, be used to locate the stop pin that is subdivided into centrepin and compresses pin, described stop pin is spring loaded in the corresponding key channel of cylinder lock core and leans against in the direction towards the key back on the front surface of key bit, the groove of wherein cutting the plane surface of flat key is set to the deformable contour part and is used for the guide-contour part of key positioner at passage with the rib that is arranged in the key channel, and a groove or buttress groove of at least one from flat key or the formation of the rib from key channel respectively, the grinding direction of propping up groove or buttress is different with the grinding direction of groove or rib, it is characterized in that: a groove is arranged on apart from a distance, the bottom of the direction recess in the flat key, and perhaps buttress is arranged on distance a distance, guiding rib bottom separately.

The present invention also provides a kind of flat key that is used for lock, have flat and the key bit of the back of parallel plane, key with the relative existence that on front surface, has tooth, this key bit is used for determining the position of stop pin, stop pin is subdivided into centrepin and compresses pin, it is characterized in that: at the core of key bit cross section, the other way around at least one groove of Ding Xiang overlapping groove, form another groove in distance bottom portion of groove a distance as a groove, the grinding direction of groove is different with the grinding direction of a groove.

The invention is intended to provide the profile system of the cross section of corresponding key channel in a kind of definite flat key cross section and the lock, this flat key has flat basically and approximately parallel plane, thus make utilize as the locksmith serve duplicate in the operation of the modern key profile profiling machine that is adopted profile become impossible.Under situation with flat basically and flat key approximate parallel side and corresponding key channel, realize above-mentioned profile system, can be by from least one groove, forming at least one additional groove as a groove or a buttress, particularly from the groove of guide-contour, form, and make the grinding direction of a groove and a groove inconsistent, and differ, suppose, 60 ° and realize.The transversal scanning of the profile groove of original key can not sense or can only sense by halves a groove.Groove must be made by clamp blank again with to the multiple scanning of original paper.Be clamped to again in the position, angle with the profile groove center line of the original grinding deviation in driction of profile groove, must cause lateral shift, thereby can not make the groove or the additional groove that laterally form by groove that produce have appropriate size, be used for suitable function, and have low cost.In practice, only can make these in lock manufactory, there are profiling broach(ing) machine and big milling center in this manufactory, here, owing to do not need to utilize the independent error introducing operation of initial position being carried out duplicate measurements, therefore the clamp alignment error can not occur.

The manufacturing and the key channel side in the suitable coupling ground manufacturing lock of propping up groove are the same difficult, and described groove forms from the inside grooves of cutting the flat side of key.The one or more transverse teeth side from groove forms at distance bottom portion of groove one segment distance place easily for one groove or a plurality of grooves.Like this, can obtain the tangible branch at two or more direction upper grooves, this branch is difficult to duplicate.Because security reason is considered to guarantee that should always there be (that is, also in attached key) in above-mentioned or a plurality of branches groove in the lock system, just provides a groove and a groove or rib and buttress as the guide-contour part easily.In the lock system, form guide-contour on the key at each, make in all supposition situations, to have desirable safety.Easily guide-contour partly is set to have on the groove outline portion that has at least one buttress on the rib of at least one groove or guide-contour, outline portion is set to relative guiding, forms the overlap joint outline portions from two planes of key.If attempt to make described senior profile (superordinated profile) by grinding groove, the expansion that causes of groove will cause the weakening of entire cross section so, and in a lot of examples, cause subsiding of cross section.Like this, just got rid of about utilizing conventional apparatus to make standby key and the existing restriction of unratified key duplicate.Should be noted that to make does not have the key of corresponding original key to be considered to make stealing tool, be subjected to law punishment, is also noted that the quality of lock system will reduce by producing this key in the mode that is unfavorable for competing.About producing or security reason, the polishing width of one or more grooves be side length 1/3rd or form a groove bottom portion of groove 1/3rd.The flat key that has flat basically and approximately parallel plane and have a groove of the same part of incision is characterised in that, from at least one groove, particularly from the overlap joint groove of relative guiding, form another groove in the central area of key bit cross section as a groove, and the direction of a grinding flute and a groove is inconsistent, differs for example 60 degree.This flat key can be key or independent key of lock system.Having one or more grooves is very easily, and the transverse teeth side from groove forms described groove in flat key middle distance trench bottom a distance.Such key is difficult to make especially, and because a groove is arranged, with the strength reduction of key to the lower degree of groove than the lower position place that may be positioned at main bottom portion of groove.

Description of drawings

The embodiment of goal of the invention shown in the drawings.Fig. 1 to 4 shows the cross section of key, and Fig. 5 shows the cross section of key channel.

The specific embodiment

The key 1 of lock system has the guide-contour (guiding profile) of the overlap joint of band groove 2,3 on the cross section of key bit, the outstanding center line that surpasses profile of each groove, and the approximate centre that is positioned at key bit length.Such embodiment can finish the task of guide-contour, just with key positioner in keyhole or key channel, and cover the top of centrepin, that is, be used for guaranteeing the induction in the lock (lock cylinder).A groove 4 of triangular groove form forms from the transverse teeth side of groove 2.The grinding direction (arrow 5) of making groove 2 is different with the grinding direction (arrow 6) of a groove 4.Like this, just need the clamp again (reclamping) of two operations and blank in order to change machine direction.

Fig. 2 shows key 7, and in addition, the rectangle that also shows in the groove 3 props up groove 8.Fig. 5 shows corresponding key channel 9: have equally rib 2 ' and 3 ' and buttress 4 ' and 8 '.Because the key according to Fig. 1 does not prop up groove 8, so this key can not insert in the key channel 9.

If locksmith service has the original key 7 that is used for making copy key according to Fig. 2, so only can be on a grinding direction cutting flutes 2 and 3.Make it comprise a groove 4 and 8 if attempt to form groove 2 and 3 by more deep grinding, key 7 will cut off so.Be shown in dotted line the profile that more gos deep into grinding among Fig. 2.

Fig. 3 shows key 10, and this key has groove 2 and 3 and groove 4 on the guide-contour according to Fig. 1, have groove 11,12 in addition, 13,13 ', and 14,14 ' be out of shape as profile.Groove 11 is the examples with system of distortion.

Fig. 4 for example understands to have groove 2,3 and prop up the key 15 of groove 4 as guide-contour.In groove 16, the part of a groove 17 as the profile distortion is provided, groove 16 is the part of profile distortion as the every other groove of not quoting, a groove 17 forms from the transverse teeth side according to the relative groove 16 of different directions of milling cutter grinding.Prop up the plane inclination of the bottom of groove 17 with respect to the transverse teeth side of groove 15.This has caused bigger obstacle to copy key.Like this, (for example, under the situation of rectangular recess or trapezoidal groove each outline portion of guide-contour not only can be formed on) bottom, and can form each outline portion of the profile distortion that has a groove on the transverse teeth side or at groove.

Be described about key, respective ribs in groove and one or more groove and the key channel and buttress have same suitable explanation.The present invention relates to independent key, also relate to system's key, the groove that the latter has in section of outline must be present in all keys of system, thereby guarantees the safety effectiveness (safety effect) of all keys and one or more coupling lock combination.

Claims (5)

1, a kind of profile system that is used to limit the flat key cross section of lock, it is used for lock and lock system, have the plane and two key plane surfaces that be parallel to each other, the key back and with the key bit portion of key back positioned opposite, this key bit portion has tooth at front surface, be used to locate the stop pin that is subdivided into centrepin and compresses pin, described stop pin is spring loaded in the corresponding key channel of cylinder lock core and leans against in the direction towards the key back on the front surface of key bit, the groove of wherein cutting the plane surface of flat key is set to the deformable contour part and is used for the guide-contour part of key positioner at passage with the rib that is arranged in the key channel, and a groove or buttress groove of at least one from flat key or the formation of the rib from key channel respectively, the grinding direction of propping up groove or buttress is different with the grinding direction of groove or rib, it is characterized in that: a groove (4,8,17) be arranged on apart from the direction recess (2 in the flat key, 3) a distance, bottom, perhaps buttress (4 ', 8 ') be arranged on apart from guiding rib separately (2 ', 3 ') a distance, bottom.

2, profile according to claim 1 system, it is characterized in that: at the core of key bit (7) cross section, the perhaps core of key channel (9) cross section, direction recess (2,3) and guiding rib (2 ', 3 ') respectively with on two plane surfaces of key, the form of the overlapping outline portion that forms along relative direction or with the form of key channel wall, be configured to the guide-contour part, these guide-contours partly are arranged on the top of pin of key channel (9), on a direction recess (2,3) of flat key (7), has at least one groove (4,8), perhaps in key channel (9), has at least one buttress (4 ', 8 ').

3, profile according to claim 1 and 2 system is characterized in that: should or the width of these grooves (4,8,17) grinding otch equal 1/3rd of groove side length, perhaps be 1/3rd of groove (2,3, the 16) bottom that forms a groove.

4, the flat key that is used for lock, have flat and two plane surfaces that be parallel to each other, the key back, with the key bit portion that is oppositely arranged with the key back, this key bit portion has tooth at front surface, this key bit is used for the position and lock pin, stop pin is subdivided into centrepin and compresses pin, it is characterized in that: at the core of key bit (7) cross section, in at least one groove (2,3) of the overlapping groove (2,3) that forms along relative direction, at distance groove (2,3) a distance, bottom forms another groove as a groove (4,8), groove (2, the grinding direction difference of a grinding direction 3) and a groove (4,8).

5, key according to claim 4, wherein, the grinding direction of the grinding direction of described groove (2,3) and a groove differs 60 degree.

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