CN87213486U - Multi-functional cipher lock - Google Patents

Abstract

The utility model relates to a multi-functional cipher lock which is used for a safe case and has the functions of key pattern identification, cipher, warning and counting. The multi-functional cipher lock is composed of a cipher lock, a primary start lock, a counter of the primary start lock, a terminal start lock, a counter of the terminal start lock, and a warning device. A a tooth bar which is arranged between the cipher device and the primary start lock is an interlocking element, a comb-shaped plug which is arranged between the cipher device and the terminal start lock is an interlocking element, and a lever which is arranged between the primary start lock and the terminal start lock is also an interlocking element. By utilizing the principle of the lever enlargement, the primary and the terminal start locks of the cipher lock are enhanced with the identification of key pattern and are added with the identification of thickness and length. The rotation area of the coded disc of the cipher lock is large, the cipher index is high, and the plug and the coded disc have no contact; thus, no dislocation of the cipher can occur due to the contactless. The interlocking device of the cipher lock is sensitive and reliable, and the utility model is provided with a recording device to record the frequency of opening. The utility model is mainly used for a high-grade safe case.

Description

Multi-functional cipher lock

The utility model relates to the mechanical lock that a kind of safety cabinet with combination properties such as key discriminating, password, warning, unlatching countings is used.

Existing mechanical lock lock core, the moulding of bullet bolt, processing unification, the overwhelming majority still continues to use traditional single cylinder bullet bolt, is easily opened by copied key or non-key method.The defective of existing scrambler is: have only three code-discs, and the rotating range of these three code-discs reduces one by one, so the password index is restricted, and locking bolt and code-disc adopt normal contact, the differentiability sense of touch is arranged, also easily be unlocked, the tape code inconsistent phenomenon easily takes place.In addition, between lockset and the scrambler, do not improve effective mutual interlocking gear between lockset and the lockset.Adopt the lockset of light, electricity, acoustic control system at no distant date, the influence that though fail-safe is strong, exist complex structure, involve great expense, maintenance difficult, electronic component is subject to temperature, humidity and aging problem.

Task of the present utility model is the shortcoming that overcomes existing lockset, and a kind of combination properties such as key discriminating, password, warning, unlatching counting that have are provided, the multifunction cipher lock that fail-safe is strong

Task of the present utility model realizes in the following manner: this coded lock is by just undoing the lock and counter, undoing the lock eventually and counter, scrambler are formed.Just undo the lock and undo the lock to the discriminating of key eventually, except that differentiating that spoon is spent, also set up discriminating to key thickness, length, spoon flower is differentiated except that with the double preferably bullet bolt of fail-safe, also utilize lever amplification principle further to the in addition highly sensitive discriminating of spoon flower, the unlatching number of times that just undoes the lock, undoes the lock eventually is by separately counter records unlatching number of times separately.Scrambler adopts 4 code-discs, and the rotating range of code-disc is big, reaches the 354-360 degree, the small sircle hole that has 60 uniform escapes to use on the code-disc, at any time the conversion password with this, improves the password index, and it is spacing to set up the scrambler plug, member, when making locking state, plug does not contact code-disc.

Characteristics of the present utility model: the one, this coded lock is used lever amplification principle and is differentiated the true and false of key, and is provided with key thickness, length constraint, and to key required precision height, recognition capability is strong, and copied key is difficult for opening.The 2nd, this coded lock scrambler password index height, plug and code-disc are contactless type, do not have sense of touch, are difficult for identification.The 3rd, this coded lock interlock sensitivity, reliable, not clear opening sequence can not be opened.The 4th, be provided with and open the number of times tape deck.

Below in conjunction with accompanying drawing embodiment is described:

Fig. 1 is that this coded lock respectively installs mutual alignment elevation (partly cut-away).

Fig. 2 is this coded lock scrambler longitudinal section.

Fig. 3 is this coded lock scrambler vertical view (partly cut-away).

Fig. 4 is that Fig. 2 is at A-A place sectional view.

Fig. 5 just undoes the lock and counter, undoes the lock and the counter elevation eventually.

Fig. 6 just undoes the lock and counter, undoes the lock and the counter vertical view eventually.

Fig. 7 is that Fig. 6 is at C-C place sectional view.

Fig. 8 is that Fig. 6 is at D-D place sectional view.

Fig. 9 is that Fig. 8 is at E-E place sectional view.

Figure 10 is that Fig. 5 is at B-B place sectional view.

With reference to Fig. 1, this coded lock by scrambler (A), just undo the lock (B) and counter (E), undo the lock eventually (C) and counter (D), warning device (F) are formed.Undo the lock eventually (C) positive left side be this lock counter (D), positive the right be scrambler (A), positive bottom be just undo the lock (B), the positive left side of just undo the lock (B) is this lock counter (E), the position of warning device (F) does not limit.Scrambler (A) and just undo the lock an interlocking part is arranged between (B)---tooth bar (19), scrambler and undo the lock eventually between an interlocking part is arranged---pectination plug (18), just undoing the lock (B) undid the lock with end an interlocking part between (C)---lever (30).

With reference to Fig. 2-4 scrambler by knob axle (1), dial axle sleeve (2), code-disc (3), alignment pin dish (4), T shape shifting block (5), backing pin (6), setting circle pin (7), positioning cylinder backing pin (8), plate (9), lifting fluted shaft cover (10), straight pin (11), back-up ring (12), collets (13), axle sleeve (14), conductive reed (15), steel ball (16), trip bolt (17), pectination plug (18), tooth bar (19), pointed tooth gear (20), semicircle slide block (21), gear (22,23) and stage clip (49,57,58) etc. part constitutes.With afterbody one axle journal is arranged respectively in the middle of the knob (1), intermediate journal is loaded onto semicircle slide block (21), the afterbody axle journal is loaded onto the lifting fluted shaft cover (10) that cylinder lock (11) and endoporus have spring (49), there is an axial long slot bore centre, afterbody has dial axle sleeve (2) suit (movingly) of square groove on knob axle (1), 4 code-discs (3) are installed in respectively on 4 alignment pin dishes (4) with setting circle pin (7) and positioning cylinder backing pin (8) and screw (17), then these 4 assembly suits (movingly) on dial axle sleeve (2), be I from right to left, II, III, the IV code-disc, II code-disc left side, a backing pin (6) is respectively arranged on the III code-disc right side, I, between the II code-disc and III, a back-up ring (12) is respectively arranged between the IV code-disc, the II code-disc left side is the axle sleeve (14) that an axial long slot bore is arranged, III code-disc the right is pointed tooth gear (20), screw (17) is fixed on gear (20) on the dial axle sleeve (2), T shape shifting block horizon bar left end pass square hole on the gear (20) and vertical rod by the axial long slot bore on axle sleeve (14) and the dial axle sleeve (2), be fixed on the semicircle slide block (21).4 conductive reed one ends are installed on the scrambler housing (56), the other end and combination disk (3), collets (13) sliding-contact.Plate (9) is inserted on dial axle sleeve (2) the afterbody square groove.One section toothed circular arc is arranged at tooth bar (19) top, can mesh with gear (20) when moving down, and there is a upward hook at the middle part, and the rack and pinion of bottom (23) engagement is gone up travelling gear (22) in addition at the axle of gear (23).Pectination plug (18) keeps flat, and there are 4 plugs on the right side, aligns 4 sockets (59) on the code-disc edge respectively, and the left side has a plug to inject the right side socket of the pin core (28) that undoes the lock eventually.There is an inclined-plane on the right side in the middle of pectination plug (18) vertical pole, and retaining is on the oblique hook inclined-plane of tooth bar (19).60 uniform escape small sircle holes are arranged on the code-disc (3), collets (13) that are set on the dish are arranged, a socket (59) is arranged on the periphery.60 uniform V type grooves are arranged on alignment pin dish (4) periphery, positioning ball (16) is arranged on the groove, stage clip (57) is positioned in the circular hole on the housing (56), compresses steel ball (16).

With reference to Fig. 5-9, just undoing the lock with undoing the lock eventually in textural identical place is: key pattern is all arranged from the mirror system, key length from mirror system and key thickness from mirror system and travelling gear (47).Key pattern by being in lock core (39,28) that keyhole is arranged in the middle of the lockset center, being enclosed within lock body (60,61) on the lock core, the square hole of 5 symmetries of row (aligning) respectively being arranged up and down at the position, vertical section of lock core, lock body, is equipped with two square body bullet bolts (51,55) and a spring (50,54) from the mirror system in every pair of square hole.Key thickness from the mirror system by be enclosed within have in the middle of the lock core front end face keyhole, keyhole right flank have the U-shaped concave surface lock core cap (46), inject lock core cap (46) concave surface the dustproof lid (27) of reporting to the police of T shape, with dustproof lid contacted flat body bullet bolt (24) and stage clip (48) composition of reporting to the police.Key length is joined from mirror system and lock core rear end, and radially sliding cylinder body (43), straight pin (42), support (44), warning feeler lever (45), stage clip, the back segment of lock core of circular hole are formed to have a screw other end to have one by the positioning housing that a T-slot is arranged (40), square body block (41), an end axle core.The lock core back segment has a circular hole, the axial channel that two levels are arranged on the hole wall, straight pin (42) pierces in the circular hole on the sliding cylinder body (43) and exposes two, and sliding cylinder body (43) is contained in the lock core metapore, can slide along two axial channel of lock core metapore in two that straight pin (42) exposes.Positioning housing (40) right-hand member is socketed on the lock core afterbody cylinder step, left end is installed on the support (44), the threaded end of warning feeler lever (45) is screwed in the sliding cylinder body screw, the intermediate sleeve compression spring, the other end passes the circular hole on positioning housing (40) end face, square body block (41) is fixed on the sliding cylinder body (43), can slide along the axial groove of positioning housing (40), also can rotate along the radial slot on the housing when putting in place.In addition, just undoing the lock and the left side that undoes the lock eventually, also have a highly sensitive spoon to spend mutual mirror device: it is by 5 levers (30), 5 groups of slidable adjustment pieces (37) and adjustment screw (38) thereof on (c) lock body (61) that undoes the lock eventually, the last row's 5 prescription cylinder bullet bolts (53) of lock core (28) and stage clip (52) thereof, the lock body (60) that just undoing the lock, straight pin (29), 5 stage clips (36) are formed.Just undoing the lock has 5 road involute grooves on lock core (39) cylindrical 1/4 circumference.The circular hole that straight pin (29) passes on 5 levers (30) is fixed on the lock body (60), contact on the lever (30) contacts with bullet bolt (53) on undoing the lock eventually, during unlatching, lower contact contacts with the bullet bolt (51) that just undoes the lock, from fulcrum straight pin (29) to upper contact is that lever is long-armed, and fulcrum is a lever short arm to lower contact.

With reference to Fig. 5,6,10, the structure of just the undo the lock counter (E) and the counter (D) that undoes the lock eventually is the same.By with lock core gear (47) meshed gears (31), with the worm screw (33) of gear (31) concentric, with worm engaging worm gear (35), counter (32), be connected worm gear (35) sum counter (32) one-way clutch (34), be contained in convex lens (26), the T shape crystal glass compositions such as (25) below convex lens above the numeral.With reference to Fig. 1,3, warning device (F) is by the parallel circuit of 4 conductive reeds (15) on battery, the scrambler, form by the flat body bullet bolt (24) of key THICKNESS CONTROL with by parallel circuit, wired sound device (g) or the wireless sound device coupled in series such as (H) of the warning feeler lever (45) of key length control.

This coded lock open theory is: the password of the scrambler that 1. sets right earlier, with reference to Fig. 2-4, the dial-up method is: knob axle (1) is rotated counterclockwise, make this with the axle on T shape shifting block (5) be in rightmost position, the another mistake hour hands are to rotating dial axle sleeve (2), and T shape shifting block (5) drives backing pin (6) and rotates with code-disc (II).Positioning cylinder backing pin (8) to code-disc (II) drives code-disc (I) again and does 360 degree rotations together when positioning cylinder backing pin on the code-disc (I) contacts, and goes to first predetermined digit position, and code-disc (I) puts in place.Counter-rotating (being clockwise direction) dial axle sleeve (2), turn over about when week, T shape shifting block (5) contact with backing pin opposite side on the code-disc (II), drives code-disc (II) and does to spend less than 354 and rotate, go to second predetermined digit position, code-disc (II) puts in place.Knob axle (1) clockwise direction is rotated, make this axle and T shape shifting block (5) be in leftmost position, at this moment, T shape shifting block (5) leaves the backing pin (6) on the code-disc (II), and then can contact with the backing pin (6) on the code-disc (III), same as above, code-disc (IV), code-disc (III) are put in place.Four password figures all put in place, four plugs that four sockets (59) of four code-discs all are in pectination plug (18) the same side that Far Left and level keep flat align, the opposite side of pectination plug has a plug that injects (C) lock core (28) that undoes the lock eventually, this plug is to undo the lock from a constraint of scrambler eventually, and pectination plug (18) is the scrambler (A) and (C) the shared interlocking member that undoes the lock eventually.When each code-disc put in place, then each reed (15) all was pressed on the collets (13) on each code-disc (3), makes electric power disconnection, reported to the police and eliminated.2. open just undo the lock (B), when original-pack key injects keyhole counterclockwise to turning 90 degrees, gear (47) driven gear (22,23) on lock core (39) afterbody also rotates, move down with the tooth bar (19) of gear (23) engagement, pectination plug (18) is left at tooth bar (19) middle part tiltedly hook, under the elastic force effect of spring (58), 4 plugs on plug (18) right side inject 4 sockets (59) on 4 code-discs respectively, simultaneously, a plug in plug (18) left side withdraws from the socket on lock core (28) the right that undoes the lock eventually, makes this joint defence constraint release.After tooth bar (19) moved down, toothed circular arc in tooth bar top and gear (20) engagement made dial-up axle sleeve (2) can not rotate dial-up.When opening first undoing the lock, the gear (47) that rotates is except that driven gear (22), gear (31) worm screw (33), worm gear (35) are rotated, one-way clutch (34) is promptly to counter (32) transfer torque, make counter skip a numeral, adding up the unlatching number of times, when lock core during by reverse resetting, one-way clutch (34) resets with worm gear (35) idle running not to counter (32) transfer torque.Convex lens (26) can clearly amplify the shown numeral of counter.When opening first undoing the lock, lock core (39) is counterclockwise to going to 90 degree, lock core (39) is gone up 5 square body bullet bolts of row (51) and is moved on to the left side horizontal level, contact with (30) 5 lower contacts of 5 levers respectively, 5 upper contacts on the lever make undo the lock eventually (C) play bolt (53) and put in place, and the left side that undoes the lock eventually is by the constraint release of lever (30) from just undo the lock (B).3. open whole undoing the lock (C), behind the constraint release on the left and right limit of lock core (28) that undoes the lock eventually, the key that undoes the lock original-pack end just can be the unlatching that undoes the lock eventually.That is this coded lock is unlocked.Undo the lock eventually the recording principle of counter with just undo the lock identical.

The theftproof performance of this coded lock: the one, the opening sequence entanglement can not be opened, if stealer is not known opening sequence, as at first undoing the lock (B) earlier, drives scrambler again, undoes the lock eventually.So, the warning feeler lever (45) of the flat body bullet bolt (24) of discriminating key thickness and discriminating key length is just connected power supply alarming, simultaneously, tooth bar on the scrambler (A) moves down, toothed circular arc in tooth bar top and gear (20) engagement, make the scrambler can't dial-up, the constraint on the right that undoes the lock eventually can not be removed, and this coded lock can't be opened.If drive scrambler earlier, open again eventually and undo the lock, at first undo the lock at last, then the oblique hook in scrambler tooth bar (19) middle part does not break away from pectination plug (18), 4 plugs of plug (18) can not inject the socket (59) of 4 code-discs respectively, and the constraint on the right that undoes the lock eventually can not be removed, simultaneously, (C) left side that undoes the lock is eventually also failed to remove by the constraint of lever (30) control, and this coded lock can't be opened.Undo the lock if open earlier eventually, at first undo the lock again or scrambler, the constraint existence about lock core (28) that undoes the lock eventually, this coded lock also can't be opened, the 2nd, code-disc (3) does not contact with pectination plug (18), there are 60 groups of steel balls and stage clip location thereof in alignment pin dish (4) edge, also has 60 escape small sircle holes, convertible at any time password on the code-disc, and the code-disc rotating range is big, code-disc (I, IV) but three-sixth turn, code-disc (II, III) can change 354 the degree, the password index is up to 60 ²* 59 ²So this scrambler dial-up sense of touch is even, can not produce the tape code inconsistent phenomenon, stealer can't be judged the position of 4 code-disc sockets, can't contraposition open.The 3rd, to key shape discrimination threshold height, the spoon flower is differentiated except that double many bullet bolts of employing are directly differentiated, also utilize lever (30) amplification principle at the beginning of the colored scale error of the spoon amplification several times that undo the lock, and by the discriminating indirectly that undoes the lock eventually, as long as make the imitated first key pattern that undoes the lock that small scale error be arranged, undo the lock eventually and just can not open.In addition, just undo the lock, undoing the lock eventually all has key thickness and length identification device, imitated key thickness is thicker or thin than original-pack key, warning dust cap (27) can not put flat body bullet bolt (24) in place, and lock just can't be opened, and imitated key length is than original-pack length or weak point, just can not put in place by the sliding cylinder body (43) of length control, the square body block (41) that is installed in so above it can not put in place, and lock core just can not rotate, and lock also can't be opened.The 4th, the counter that just undoes the lock, undoes the lock eventually adds up unlatching number of times separately respectively.

Claims (2)

1, a kind of multifunction cipher lock that is used for safety cabinet, having key pattern differentiates, password, report to the police, open tally function, it is characterized in that this coded lock is by scrambler (A), (B) and counter thereof (E) just undo the lock, (C) and counter thereof (D) eventually undo the lock, warning device (F) is formed, (C) the positive left side that undoes the lock eventually is this lock counter (D), positive the right is scrambler (A), positive bottom is just undo the lock (B), (B) the positive left side that just undoes the lock is this lock counter (E), the position of warning device (F) does not limit, scrambler (A) and just undo the lock an interlocking part is arranged between (B)--tooth bar (19), between scrambler and whole the undoing the lock an interlocking part is arranged--pectination plug (18), between just undoing the lock (B) and undoing the lock eventually an interlocking part-lever (30) is arranged, scrambler is by knob axle (1), dial axle sleeve (2), code-disc (3), alignment pin dish (4), T shape shifting block (5), backing pin (6), setting circle pin (7), positioning cylinder backing pin (8), plate (9), lifting fluted shaft cover (10), straight pin (11), back-up ring (12), collets (13), axle sleeve (14), conductive reed (15), steel ball (16), trip bolt (17), pectination plug (18), tooth bar (19), pointed tooth gear (20), semicircle slide block (21), gear (22,23) and stage clip (49,57,58) form.With afterbody one axle journal is arranged respectively in the middle of the knob axle (1), intermediate journal is loaded onto semicircle slide block (21), the afterbody axle journal is loaded onto the lifting fluted shaft cover (10) that straight pin (11) and endoporus have stage clip (49), the centre has an axial long hole afterbody dial axle sleeve (2) suit (movingly) of square groove to be arranged on knob axle (1), 4 code-discs (3) are installed in respectively on 4 alignment pin dishes (4) with setting circle pin (7) and positioning cylinder backing pin (8) and screw (17), then, with these 4 assembly suits (movingly) on dial axle sleeve (2), be I from right to left, the II II, III, the IV code-disc, II code-disc left side, respectively there is a backing pin (6) III code-disc right side, I, between the II code-disc and III, a back-up ring (12) is respectively arranged between the IV code-disc, the II code-disc left side is the axle sleeve (14) that an axial long slot bore is arranged, the III code-disc left side is pointed tooth gear (20), screw (17) is fixed on gear (20) on the dial axle sleeve (2), T shape shifting block (5) horizon bar left end passes the square hole of gear (20) and vertical rod is fixed on the semicircle slide block (21) by the axial long slot bore on axle sleeve (14) and the dial cover (2), 4 conductive reed (15) one ends are fixed on the scrambler housing (56), the other end and code-disc (3) and collets (13) sliding-contact, plate is inserted on dial axle sleeve (2) the afterbody square groove, one section toothed circular arc is arranged at tooth bar (19) top, can mesh with gear (20) when moving down, there is an oblique hook that makes progress at the middle part, the rack and pinion of bottom (23) engagement also has gear (22) on gear (23) axle; Pectination plug (18) keeps flat, there are 4 plugs on the right side, align 4 sockets (59) on the code-disc periphery respectively, the left side has a plug to inject the socket on lock core (28) right side that undoes the lock eventually, there is an inclined-plane on the right side in the middle of pectination plug (18) vertical pole, retaining is on the oblique hook inclined-plane of tooth bar (19), 60 uniform escape small sircle holes are arranged on the code-disc (3), one collets (13) that are set on the dish are arranged, one socket (59) is arranged on the periphery, 60 uniform V-type grooves are arranged on alignment pin dish (4) periphery, positioning ball (16) is arranged on the groove, stage clip (57) is positioned in the circular hole on the housing (56) and compresses steel ball (16), just undo the lock and in textural identical place be: key pattern is all arranged from the mirror system with whole undoing the lock, key thickness is from the mirror system, key length is from mirror system and travelling gear (47), key pattern from the mirror system by being in the middle of the lockset center-lock core (39 of keyhole, 28), be enclosed within the lock body (60 on the lock core, 61), at lock core, the position, vertical section of lock body, the square hole that one 5 symmetries of row (aligning) are respectively arranged up and down, 2 square body bullet bolts (51 are housed in every pair of square hole, 55) and a spring (50,54), key thickness from the mirror system by being enclosed within the lock core front end, there is keyhole the centre, there is the lock core cap (46) of U type concave surface the side, the dustproof warning of the T shape of injecting lock core cap (46) concave surface covered (27) and dustproof lid contacted flat body bullet bolt (24) and stage clip (48) composition of reporting to the police; Key length is joined from mirror system and lock core rear end, by the positioning housing that a T-slot is arranged (40), square body block (41), one end axle core has screw hole, the other end has the sliding cylinder body (43) of a radial hole, straight pin (42), support (44), warning feeler lever (45), stage clip, the back segment of lock core is formed, the lock core back segment has a circular hole, the axial channel that two levels are arranged on the hole wall, straight pin (42) pierces in the circular hole on the sliding cylinder body (43), expose two, sliding cylinder body (43) is contained in the lock core metapore, can slide along two axial channel of lock core metapore in two that straight pin (42) exposes, positioning housing (40) is socketed on the lock core afterbody cylinder step, left end is installed on the support (44), warning feeler lever (45) has an end of screw to be screwed in the sliding cylinder body screw, the intermediate sleeve compression spring, the other end passes the circular hole on positioning housing (40) end face, square body briquetting (41) is fixed on the sliding cylinder body (43), can slide along the axial groove of positioning housing (40), when putting in place, also can rotate along the radial slot on the housing, the left side that just undoes the lock and undo the lock eventually also has a highly sensitive spoon to spend mutual mirror device: it is by 5 levers (30), row's 5 prescription cylinder bullet bolts (53) and a stage clip (52) thereof on undo the lock eventually lock body (61) and lock core (28), 5 groups of slidable adjustment pieces (37) on the lock body (60) that just undoes the lock and adjustment screw (38) thereof, straight pin (29), article 5, stage clip (36) is formed.Just undoing the lock has 5 road involute grooves on lock core (39) cylindrical 1/4 circumference, the circular hole that straight pin (29) passes 5 levers (30) is fixed on the lock body (60), lever (30) upper contact contacts with bullet bolt (53) on undoing the lock eventually, during unlatching, lower contact contacts with the bullet bolt (51) that just undoes the lock, from fulcrum straight pin (29) to upper contact is that lever is long-armed, fulcrum is a lever short arm to lower contact, the structure of counter (E) and the counter (D) that undoes the lock eventually of just undoing the lock is the same, by with lock core gear (47) meshed gears (31), the worm screw of concentric (33), worm gear (35) with worm engaging, counter (32), one-way clutch (34), be contained in the convex lens (26) above the numeral, T shape crystal glass (25) below convex lens is formed.Warning device is by the parallel circuit of 4 conductive reeds (15) on battery, the scrambler, form by the flat body bullet bolt (24) of key THICKNESS CONTROL with by the coupled in series such as parallel circuit, wired sound device or wireless sound device of the warning feeler lever (45) of key length control, and sound setting position does not limit.

2, multifunction cipher lock according to claim 1, it is characterized in that this cipher lock core, lock body make with ledrite, shell 15-30 ordinary steel manufacturing, play bolt nitrated steel manufacturing, heat treatment hardness is HRC40-50, and spring is made with BeZnCu, lever is made with the CrMn steel, quenching and tempering hardness is the HRC40-50 degree, and key is made with 2Cr13 or 3Cr13 or 4Cr13 stainless steel, and quenching and tempering hardness is the HRC40-50 degree.

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