Gear lock

文档序号:984133 发布日期:2020-11-06 浏览:10次 中文

阅读说明:本技术 一种齿轮锁 (Gear lock ) 是由 殷雄雄 柳小勇 于 2020-05-06 设计创作,主要内容包括:本发明公开了一种齿轮锁,包括锁舌组件、斜舌组件、驱动转换机构、和齿轮驱动结构,所述驱动组件可带动所述锁舌组件和斜舌组件的伸出或缩回,所述驱动结构可通过锁头带动,或由机驱动转换组件并带动驱动结构。本发明的优点是:发明解决了开启或锁闭过程中跳档、脱档问题,且钥匙开锁与电机开锁可以自由切换。(The invention discloses a gear lock, which comprises a lock tongue component, an oblique tongue component, a drive conversion mechanism and a gear drive structure, wherein the drive component can drive the lock tongue component and the oblique tongue component to extend or retract, and the drive structure can be driven by a lock head or driven by the machine drive conversion component. The invention has the advantages that: the invention solves the problems of gear jumping and gear disengaging in the opening or locking process, and the key unlocking and the motor unlocking can be freely switched.)

1. The gear lock is characterized by comprising a lock tongue component, an oblique tongue component, a drive conversion mechanism and a gear drive structure, wherein the drive component can drive the lock tongue component and the oblique tongue component to extend or retract, and the drive structure can be driven by a lock head or a motor to drive the conversion component and drive the drive structure.

2. The gear lock of claim 1, further comprising a shoulder pole dial wheel, wherein the shoulder pole dial wheel is sleeved on the spring bolt pushing gear, and the shoulder pole dial wheel is driven by the spring bolt pushing gear to rotate, and the shoulder pole dial wheel abuts against the shoulder pole, and the shoulder pole abuts against the latch bolt fork, one end of the latch bolt fork is fixed on the handle dial wheel, and the handle fork lever is fixed on the other side of the handle dial wheel, so that the handle fork can drive the shoulder pole to move left and right in parallel, and the shoulder pole pushes one end of the latch bolt fork to rotate around the handle dial wheel, and the other end of the latch bolt fork drives the latch bolt assembly to extend or retract due to the abutment of the latch bolt assembly.

3. The gear lock according to claim 1, wherein the driving switching structure comprises a clutch transmission gear, a lock tongue pushing gear, a clutch input gear, and a clutch dial wheel, wherein the lock tongue pushing gear is engaged with the clutch transmission gear, the transmission gear is engaged with the clutch input gear, and the clutch dial wheel is sleeved inside the clutch input gear;

the clutch dial wheel can be linked with the clutch input gear and the clutch transmission gear, so that the transmission gear drives the clutch input gear to rotate and drives the clutch transmission gear to rotate, and the lock tongue is driven to push the gear to rotate;

or after the clutch dial wheel rotates for a certain angle, the clutch dial wheel is linked with the clutch transmission gear, the clutch input gear is disconnected from the clutch dial wheel and linked with the clutch dial wheel, the clutch dial wheel drives the clutch transmission gear to rotate, the secondary input gear drives the clutch dial wheel to rotate,

thereby driving the bolt to push the gear to rotate.

4. The gear lock of claim 3, further comprising a clutch ball, wherein the clutch ball is engageable between the clutch input gear, the clutch shaft, and the clutch drive gear.

5. The gear lock of claim 4, wherein the clutch dial wheel includes a dial wheel body, and the dial wheel body is provided with a concave surface A, a top bead surface A, a boss A and a torsion spring stuck point A, and the concave surface A and the top bead surface A are both formed by the dial wheel body being recessed inwards, and the torsion spring stuck point A is formed by the clutch dial wheel extending upwards, and the boss A is formed by the clutch dial wheel extending downwards.

6. The gear lock of claim 5, wherein the top bead surface A is provided with a concave surface A on each side.

7. The gear lock of claim 6 or 5, wherein the clutch input gear is provided with a plurality of bead concavities E, and the bead concavities E are formed by inwardly recessing the main body portion of the clutch input gear.

8. The gear lock of claim 7, wherein the clutch ball is disposed between the top ball surface A and the ball concave surface E and inside the ball groove C when the clutch dial is in linkage with the clutch input gear.

9. The gear lock of claim 8, wherein the clutch ball is disposed within the recessed surface A when the clutch dial and the clutch input gear are decoupled.

10. The gear lock of claim 3, further comprising a secondary input gear, wherein the secondary input gear rotates the clutch wheel.

11. The gear lock of claim 3, further comprising a transmission gear, wherein the transmission gear is configured to rotate the clutch input gear.

12. The gear lock of claim 1, wherein the gear driving structure comprises a lock head transmission gear, a carrier gear, a transition gear, a lock tongue pushing gear and a positioning push plate, the lock tongue transmission gear is engaged with the two carrier gears, the other sides of the two carrier gears are engaged with the transition gear, the transition gear is linked with the lock tongue pushing gear, and the lock tongue pushing gear is abutted and positioned with the positioning push plate.

13. The gear lock of claim 12, wherein the two carrier gears operate synchronously, and when one carrier gear is aligned with the notch, the other carrier gear further engages with the lock head drive gear to ensure that the lock head drive gear and the transition gear are in a continuous drive state.

14. The gear lock of claim 12, further comprising a spring, wherein the spring is configured to return the positioning push plate.

15. The gear lock of claim 12, wherein the lock head drive gear is provided with a notch.

16. The gear lock of claim 12, wherein the latch bolt pushing gear comprises a boss and an M-post arranged on the latch bolt pushing gear body, and the boss is oval, that is, the boss comprises an arc portion and a linear portion, the linear portion is a positioning surface B, and the arc portion is provided with a fixing hole.

17. The gear lock of claim 16, wherein the transition gear 3 is provided with two fixing posts.

18. The gear lock of claim 11, wherein the positioning plate comprises a positioning plate body, the positioning plate body is provided with a fixing groove therein, the positioning plate body is provided with a fixing portion, and the other end is provided with two abutting portions, the fixing groove is a circular groove having a straight portion on one side, and the straight portion is a positioning surface a.

19. The gear lock of claim 18, wherein the boss is rotatable within the retaining slot and the locating surface B of the boss is abuttable against the locating surface a for locating.

20. The gear lock of any one of claims 12 to 19, wherein the upper cover of the driving assembly is disposed on the lower cover of the driving assembly to form a housing, the lower cover of the driving assembly is disposed with a positioning shaft, the carrier gear, the transition gear, and the latch pushing gear are disposed on the positioning shaft, and a bearing is disposed outside the positioning shaft of the latch pushing gear.

Technical Field

The invention relates to the field of electronic locks, in particular to a gear lock.

Background

With the increasing intellectualization of electronic locks, the demand for automatic control of lock bodies is continuously increased, the existing external fully-electric intelligent matching lock bodies are divided into two-gear type and one-gear type, and the two-gear type can generate the phenomena of gear-shifting and gear-jumping in the process of movement, and like the one-gear type, the stress change is larger in the process of movement, which is not beneficial to the improvement of power conversion efficiency; similar stepless locks appear in the market, but the locks all run for two circles, and the operation process increases the opening/locking time and simultaneously has insufficient antistatic force.

Disclosure of Invention

The invention aims to provide a gear lock, which can solve the defects of long unlocking/locking time and insufficient antistatic pressure in the prior art.

The invention adopts the following technical scheme:

a gear lock comprises a lock tongue component, an oblique tongue component, a drive conversion mechanism and a gear drive structure, wherein the drive component can drive the lock tongue component and the oblique tongue component to extend or retract, and the drive structure can be driven by a lock head or driven by the machine drive conversion component and drive the drive structure.

Still include a shoulder pole thumb wheel, just the shoulder pole thumb wheel cover is located the spring bolt promotes the gear, and the shoulder pole thumb wheel rotates under the drive of spring bolt promotion gear, and the shoulder pole thumb wheel with shoulder pole looks butt, and through just shoulder pole and latch shift fork looks butt, latch shift fork one end is solid on the handle thumb wheel, and the fixed handle shift fork shoulder pole thumb wheel of opposite side of handle thumb wheel can drive parallel translation about the shoulder pole, and the shoulder pole promotes latch shift fork one end and rotates around the handle thumb wheel, and the other end is owing to its latch subassembly looks butt to drive the latch subassembly and stretch out or retract.

The conversion comprises a clutch transmission gear, a lock tongue pushing gear, a clutch input gear and a clutch dial wheel, wherein the lock tongue pushing gear is meshed with the clutch transmission gear, the transmission gear is meshed with the clutch input gear, and the clutch dial wheel is sleeved inside the clutch input gear;

the clutch dial wheel can be linked with the clutch input gear and the clutch transmission gear, so that the transmission gear drives the clutch input gear to rotate and drives the clutch transmission gear to move, and the lock tongue is driven to push the gear to rotate;

or after the clutch dial wheel rotates for a certain angle, the clutch dial wheel is linked with the clutch transmission dial wheel, the clutch input gear is disconnected from the clutch dial wheel, and the secondary input gear drives the clutch dial wheel to rotate, so that the lock tongue is driven to push the gear to rotate.

The clutch ball is clamped between the clutch input gear and the clutch shifting shaft, and the clutch transmission gear is arranged above the clutch ball.

The separation and reunion thumb wheel includes the thumb wheel main part, just be equipped with concave surface A, top pearl face A, boss A and spring stuck point A in the thumb wheel main part, just concave surface A with top pearl face A is the thumb wheel main part is inside sunken to form, just spring stuck point A does the separation and reunion thumb wheel upwards extends the back and forms, boss A does the separation and reunion thumb wheel forms after extending downwards.

Two sides of the top bead surface A are respectively provided with a concave surface A.

The clutch input gear is provided with a plurality of spherical concave surfaces E, and the spherical concave surfaces E are formed by inwards recessing the main body part of the clutch input gear.

When the clutch thumb wheel is linked with the clutch input gear, the clutch bead is arranged between the top bead surface A and the spherical concave surface E and is positioned in the spherical groove C.

When the clutch dial wheel and the clutch input gear are disconnected in linkage, the clutch ball is arranged inside the concave surface A.

The clutch shifting wheel is characterized by further comprising a secondary input gear, and the secondary input gear drives the clutch shifting wheel to rotate.

The clutch input gear can be driven to rotate by the transmission gear.

The gear driving structure comprises a lock head transmission gear, a gap bridge gear, a transition gear, a spring bolt pushing gear and a positioning push plate, the spring bolt transmission gear is meshed with the two gap bridge gears, the two gap bridge gears are meshed with the spring bolt pushing gear, and the spring bolt pushing gear is in butt joint with the positioning push plate.

The positioning push plate is characterized by further comprising a spring, and the spring can enable the positioning push plate to reset.

The lock head transmission gear is provided with a notch.

The spring bolt promotes the gear including locating the boss on the spring bolt promotes the gear main part, just the boss is the ellipse, and it includes circular arc part and linear portion promptly, just linear portion is locating surface B.

The location push pedal includes location push pedal main part, and location push pedal main part inside is equipped with the fixed slot, is equipped with a fixed part in the location push pedal main part, and the other end is equipped with two butt portions, the fixed slot is the circular recess that one side was equipped with straight portion part, straight line part is locating surface A.

The boss can rotate in the fixing groove, and a positioning surface B of the boss can be abutted to the positioning surface A, so that positioning is carried out.

The driving assembly upper cover is arranged on the driving assembly lower cover to form a shell, the driving assembly lower cover is provided with a positioning shaft, the gap bridge gear and the spring bolt pushing gear sleeve are arranged on the positioning shaft, and a bearing is arranged on the outer side of the positioning shaft of the spring bolt pushing gear.

The invention has the advantages that: the invention solves the problems of gear jumping and gear disengaging in the opening or locking process, and the key unlocking and the motor unlocking can be freely switched.

Drawings

The invention is described in detail below with reference to examples and figures, in which:

fig. 1 is a schematic structural view of a deadbolt drive gear of the present invention.

Fig. 2 is a schematic view of the construction of the transition gear of the present invention.

Fig. 3 is a schematic structural view of a pushing gear of the lock head of the invention.

FIG. 4 is a schematic view of the structure of the positioning push plate of the present invention.

Fig. 5-7 are schematic structural views of three states of the present invention.

Fig. 8 is an exploded view of the inventive drive structure.

Fig. 9 is a schematic view of the construction of the secondary input gear of the present invention.

Fig. 10 is a schematic view of the clutch transmission gear of the present invention.

Fig. 11 is a schematic view of the clutch input gear of the present invention.

Fig. 12 is a schematic structural view of the clutch thumb wheel of the invention.

Fig. 13 is another schematic view of the structure of fig. 12.

Fig. 14 is a schematic view of the combined structure of the present invention.

Fig. 15 is a schematic structural view of the occluded state of the present invention.

Fig. 16 is a schematic structural view of the disengaged state of the present invention.

Fig. 17 and 18 are schematic structural views of the operation state of the present invention.

Fig. 19 is a schematic structural view of the present invention.

Fig. 20A, B, C is a schematic diagram of the process by which the latch bolt assembly of the present invention is actuated.

FIG. 21A, B is a schematic diagram of the process by which the latch assembly of the present invention is actuated.

FIG. 22 is a schematic diagram of the logic driving structure of the present invention.

Fig. 23 is an exploded view of the present invention.

Fig. 24 is an exploded view of the switching structure of the present invention.

Detailed Description

The following further illustrates embodiments of the invention:

as shown in fig. 19, the present invention discloses a gear lock, which comprises a lock tongue assembly 12, wherein a positioning pin 1 is fixedly arranged on the lock tongue assembly 12, a carrying pole 29 and a tongue guide pin 30 are further arranged on the lock tongue assembly, the gear lock further comprises a latch bolt assembly, the driving structure drives the lock tongue assembly and the latch bolt assembly to extend and retract, and the driving structure can be driven by a lock head or drives a conversion assembly and drives the driving structure due to a motor.

The invention also comprises a positioning pin 1, a lock shell component 2, a tongue plate guide pin 14, a top and bottom rod component 15, a carrying pole poking wheel 16 and a handle poking shaft 17, wherein the oblique tongue component 18 comprises an oblique tongue pulling block 19, an oblique tongue positioning piece 20, an oblique tongue spring 21, an oblique tongue poking fork 22, an oblique tongue positioning block 23, a reversing block positioning pin 25 and a cover plate 27.

As shown in fig. 19, the driving structure 100 and the converting structure 200 of the present invention, and the driving structure includes a lock head transmission gear 1, a carrier gear 2, a transition gear 103, a latch bolt pushing gear 104, a driving assembly lower cover 105, a positioning push plate 106, a positioning spring 107, a driving assembly upper cover 108, a positioning shaft 109, and a bearing 110. The positioning shaft is arranged on the lower cover of the driving component,

drive assembly upper cover and drive assembly lower cover subassembly shell tapered end drive gear, gap bridge gear, transition gear, spring bolt promotion gear pass through the location axle fixed, and location push pedal and location spring are fixed and are covered under the drive assembly, and 8 lids of drive assembly upper cover locate the drive assembly and cover under the drive assembly.

As shown in fig. 1, one end of the lock head transmission gear 101 is engaged with two intermediate gears, and both the two intermediate gears are engaged with the tongue pushing gear, and the lock head transmission gear 101 is provided with a notch 1011. When one of the two intermediate gears is aligned with the notch, the other intermediate gear is also meshed with the lock head transmission gear so as to ensure that the lock head transmission gear and the transition gear are in a continuous transmission state.

As shown in fig. 2, two fixing posts 1031 are provided on the transition gear 103.

As shown in fig. 3, the latch bolt pushing gear 104 includes a latch bolt pushing gear body 1041, and a boss 1042 and an M-pillar 1043 provided thereon, and the boss 1042 is elliptical, that is, it includes an arc portion 10421 and a straight portion 10422, and the straight portion 10422 forms a positioning surface B, and the arc portions are respectively provided with a fixing hole 10423. The M column of the invention is provided with two.

As shown in fig. 4, the positioning push plate 106 includes a positioning push plate main body 1061, a fixing groove 1062 is disposed inside the positioning push plate main body 1061, a fixing portion 1063 is disposed on the positioning push plate main body, and two abutting portions 1064 are disposed at the other end of the positioning push plate main body, the fixing groove 1062 is a circular groove having a straight portion 10621 at one side, the straight portion forms a positioning surface a, the boss 1042 can rotate inside the fixing groove, and a positioning surface B10422 of the boss 1042 can abut against the positioning surface a10621, so as to perform positioning.

The return spring 107 is sleeved on the fixing portion 1063 and can return the positioning push plate.

The driving assembly upper cover 108 is covered on the driving assembly lower cover 105 to form a shell, the driving assembly lower cover is provided with a positioning shaft 109, the gap bridge gear and the bolt pushing gear are sleeved on the positioning shaft, and a bearing 110 is arranged on the outer side of the positioning shaft of the bolt pushing gear.

The working principle of the driving structure is as follows:

the lock head transmission gear is meshed with the two carrier gears, the other sides of the carrier gears are respectively meshed with the transition gears, and the two fixing columns at the tops of the transition gears are respectively sleeved with the fixing hole, so that the transition gears can drive the lock tongue to push the gears to rotate, the positioning push plate keeps one-way thrust under the action of the spring, and the lock tongue pushes the positioning face B of the gear 4 to be acted by the positioning face A of the positioning push plate, so that the positioning effect is achieved. Thereby effectively solving the problems of gear jumping and gear disengaging in the opening or locking process.

As shown in fig. 14 and 22, the switching structure 200 of the present invention includes a secondary input gear 201, a clutch transmission gear 202, a latch pushing gear 203, a clutch input gear 204, a clutch dial 205 and a transmission gear 207, wherein the latch pushing gear is engaged with the clutch transmission gear, the transmission gear is engaged with the clutch input gear, and the clutch dial is sleeved inside the clutch input gear;

the clutch dial wheel 205 can be linked with the clutch input gear 204 and the clutch transmission gear 202, so that the transmission gear 207 drives the clutch input gear 204 to rotate and drives the clutch transmission gear 202 to rotate, thereby driving the bolt pushing gear 203 to rotate;

or, after the clutch dial wheel 205 rotates by a certain angle, the clutch dial wheel 205 is linked with the clutch transmission gear 202, the clutch input gear 204 is disconnected from the clutch dial wheel 205, the secondary input gear 201 drives the clutch dial wheel 205 to rotate, and the clutch dial wheel drives 205 to drive the clutch transmission gear 202 to rotate, so as to drive the lock tongue to push the gear 203 to rotate.

When the clutch thumb wheel is linked with the clutch input gear, the clutch bead is arranged between the top bead surface A and the bead concave surface E and is positioned in the ball groove C. When the clutch dial wheel and the clutch input gear are disconnected in linkage, the clutch ball is arranged inside the concave surface A.

The input gear 201, the clutch transmission gear 202, the bolt pushing gear 203, the clutch input gear 204, the clutch dial wheel 205 and the transmission gear 207 of the invention are fixed on the lower cover 206 of the driving assembly, and the lower cover of the driving assembly is provided with a plurality of positioning shafts 210.

As shown in fig. 9, the secondary input gear 201 includes an annular sliding groove 2011, and a boss 2012 is disposed inside the annular sliding groove and extends upward toward the annular sliding groove.

As shown in fig. 10, the clutch transmission gear 202 includes two ball grooves C2021, a groove surface B2022 and a torsion spring fastening point B2023, and in the present invention, the two ball grooves C2021 are arranged symmetrically left and right.

As shown in fig. 11, a ball concave surface E2041 is provided inside the clutch input gear 204, and the ball concave surface E is formed by recessing a main portion of the clutch input gear inwards. The bead concave surface E2041 is arc-shaped, the bead concave surface E is provided with a bottom support which can support the clutch bead, and the clutch bead can be attached to the bead concave surface E.

As shown in fig. 12 and 13, the clutch dial 205 includes a dial body 2051, and the dial body 2051 is provided with a concave surface a2052, a top bead surface a2053, a boss a2054, and a torsion spring click point a 2055. And concave surface A2052 and top pearl face A2053 are the thumb wheel main part 2051 and inwards sunken form, and torsional spring stuck point A2055 is formed after the separation and reunion thumb wheel of both sides is sunken downwards, boss A2054 is formed after separation and reunion thumb wheel downwardly extending, boss A2054 can be inside the annular spout and slide, and can with boss 2012 looks butt.

The working principle of the invention is as follows:

the clutch thumb wheel 205 is under the elastic action of the reset torsion spring 209, and the torsion spring stuck point A is aligned with the torsion spring stuck point B; and the reset torsion spring can ensure that the clutch can be reset well.

The state of the steel ball of the invention is divided into an occlusion state and a disengagement state,

the working state is that the ball concave surface E of the clutch input gear, the steel ball 208, the ball groove C of the clutch transmission gear and the top ball surface A of the clutch thumb wheel form a meshing state to form linkage.

The separation state is that the secondary input gear rotates and drives the clutch dial wheel to rotate, the clutch dial wheel rotates relative to the clutch input gear, the steel ball falls into the concave surface A of the clutch dial shaft at the moment, and the steel ball slides out of the ball groove C of the clutch transmission gear at the moment.

The cover plate 43 of the invention is also provided with a Hall switch 1.1, a Hall switch 1.2, a Hall switch 2.1, a Hall switch 2.2, a Hall switch 3.1, a Hall switch 3.2, a clutch transmission gear, a magnet 1.1 and a magnet 1.2, the cover plate is provided with a magnet 2, a lock head transmission gear is provided with a magnet 3, and the magnets 1.1, 1.2 and the Hall switches 1.1, 1.2 form a logic circuit for judging the state that No. 9 pieces rotate to shoot out a lock bolt, withdraw the lock bolt, open an oblique bolt and return; the magnet 2 and the Hall switches 2.1 and 2.3 form a logic circuit for judging the extending and retracting states of the bolt assembly; the magnet 3 and the Hall switches 3.1 and 3.2 form a logic circuit for judging the rotation direction and the number of turns of the lock head.

The two working states of the invention are:

as shown in fig. 15, in the engaged state, the clutch transmission gear is engaged with the clutch dial wheel, and at this time, the clutch transmission gear is linked with the clutch dial wheel, and the transmission gear drives the clutch input gear to rotate, so as to drive the clutch dial wheel to rotate.

As shown in fig. 16, in the disengaged state, the transmission gear and the clutch transmission gear are locked, at this time, the secondary input gear rotates, the boss D of the secondary input gear drives the boss a of the clutch transmission gear, the clutch dial rotates into the groove surface B of the clutch transmission gear, and is linked with the clutch transmission gear, at this time, the concave surface a is aligned with the bead groove C, the disengaged state is reached, the clutch transmission gear is disconnected from the clutch input gear, at this time, the secondary input gear drives the clutch dial to rotate, and the clutch dial is linked with the clutch transmission gear, so that the lock tongue pushes the gear to rotate.

The latch bolt pushing gear is meshed with the secondary input gear, the latch bolt pushing gear drives the input gear to rotate, the transmission gear is meshed with the motor, and the motor drives the transmission gear to rotate, as shown in figures 17 and 18. The motor transmission end is set as a main transmission end which can drive the transmission gear, the transmission gear and the clutch input gear are always kept in meshed state for transmission, the key transmission end is set as a secondary transmission end which can drive the secondary input gear, so that stable transmission of the main transmission end is achieved, the secondary transmission end realizes linkage cut-off and motion transmission of the main transmission end, and a bidirectional clutch function that forward and reverse motion can be in linkage cut-off is achieved. The invention solves the problems of gear jumping and gear falling off in the opening or locking process, and the gear jumping and gear falling off are as follows: when the lock head is used for opening or locking, the lock tongue retracts or extends because the lock tongue or an external part communicated with the lock tongue is subjected to a counterforce to cause movement failure.

When the lock body is opened and closed, the lock core thumb wheel pushes two surfaces of a gap above and below the lock head transmission gear to enable the lock head transmission gear to rotate, the lock head transmission gear drives two carrier gears to synchronously rotate, the carrier gears drive the transition gears to rotate, the transition gears are linked with the lock tongue pushing gear, so that the lock tongue pushing gear and the shoulder thumb wheel are driven to rotate, the lock tongue pushing gear is positioned by the positioning push plate and the elastic force of the spring, and the lock tongue pushing gear rotates to push an E groove on a lock tongue part to enable the lock tongue part to do linear motion; the bolt pushes the gear to have two posts M, when a post breaks away from the E groove of the bolt part, another post gets into the E groove to realize the bolt part atress all the time in the motion process, in order to guarantee not out of gear.

The invention solves the problems of trip and gear-off in the opening or locking process (trip and gear-off, namely, when the lock head is used for opening or locking, the dead bolt or the external part communicated with the dead bolt is subjected to reaction force to cause movement failure and the bolt returns or extends.)

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

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