CA2152376A1 - Combination lock for bags, cases and similar articles - Google Patents
Combination lock for bags, cases and similar articlesInfo
- Publication number
- CA2152376A1 CA2152376A1 CA002152376A CA2152376A CA2152376A1 CA 2152376 A1 CA2152376 A1 CA 2152376A1 CA 002152376 A CA002152376 A CA 002152376A CA 2152376 A CA2152376 A CA 2152376A CA 2152376 A1 CA2152376 A1 CA 2152376A1
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- CA
- Canada
- Prior art keywords
- combination
- wheels
- lock
- setting
- locking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
- Handcart (AREA)
Abstract
The invention concerns a combination lock (1) for bags, cases, etc., the lock having several combination wheels (12) for setting the key combination which permits the lock to be opened, locking wheels (11) working in conjunction with the combination wheels and a bar (17) which is biased by a spring in the direction of closure of the lock. Each locking wheel (11) has a cut-out section (36) which makes it possible to move the bar (17) when the correct key combination is set on the wheels. The invention proposes that individually mounted force-transmission levers (32) are disposed between the locking wheels (11) and the bar (17), the levers making contact at one end with the locking wheels (11) and having at the other end a slot (31) which engages with a pin (30) on the bar.
Description
21~ 237 ~ _ COMBINATION LOCK FOR BAGS, CASES, ETC.
The present invention relates to a combination lock for bags, cases, etc., with a plurality of combination wheels for setting the key combination that permits the lock to be opened, locking wheels working in conjunction with these, and a bar that is biased by a spring in the direction of closure of the lock, there being a cut-out section in each locking wheel, which permits movement of the bar when the correct the combination is set on the wheels.
A lock of the type discussed herein is described in DE-OS
28 15 496. In this lock, r each setting wheel is mounted on its own shaft. On one of its wide surfaces, each setting - wheel forms a cog that is of smaller diameter than the setting wheel, and this engages in the peripheral teeth of a locking wheel that is also mounted on its own,shaft. On their broad surfaces, each locking wheel has an elongated locking projection that works in conjunction with a similarly shaped recess in the bar. If the combination has been correctly set, the locking projections in the locking wheels line up with the recesses in the bar. This can then be moved by means of an actuating button; at the same time, the locking bolt pivots, thereby releasing a striker plate of the combination lock. A lock of this kind is difficult to construct and is thus expensive.
It is the task of the present invention to provide a com-bination lock of this kind that is of simple construction, user friendly, and tamper-proof.
This problem has been solved with a combination lock of this kind, in that individually supported transmission levers are arranged between the locking wheels and the slide; at one end these make contact with the locking wheels and at the other a slot engages with a pin on the slide.
The present invention relates to a combination lock for bags, cases, etc., with a plurality of combination wheels for setting the key combination that permits the lock to be opened, locking wheels working in conjunction with these, and a bar that is biased by a spring in the direction of closure of the lock, there being a cut-out section in each locking wheel, which permits movement of the bar when the correct the combination is set on the wheels.
A lock of the type discussed herein is described in DE-OS
28 15 496. In this lock, r each setting wheel is mounted on its own shaft. On one of its wide surfaces, each setting - wheel forms a cog that is of smaller diameter than the setting wheel, and this engages in the peripheral teeth of a locking wheel that is also mounted on its own,shaft. On their broad surfaces, each locking wheel has an elongated locking projection that works in conjunction with a similarly shaped recess in the bar. If the combination has been correctly set, the locking projections in the locking wheels line up with the recesses in the bar. This can then be moved by means of an actuating button; at the same time, the locking bolt pivots, thereby releasing a striker plate of the combination lock. A lock of this kind is difficult to construct and is thus expensive.
It is the task of the present invention to provide a com-bination lock of this kind that is of simple construction, user friendly, and tamper-proof.
This problem has been solved with a combination lock of this kind, in that individually supported transmission levers are arranged between the locking wheels and the slide; at one end these make contact with the locking wheels and at the other a slot engages with a pin on the slide.
This configuration results in a combination lock of this kind that is simple, tamper-proof and easy to operate. A
locking wheel and a setting wheel are arranged on a common shaft, and a transmission lever is provided between the wheels as a connecting element. In the event that a plur-ality of setting wheels and locking wheels are arranged one behind the other in a row, it is sufficient to rotate a single setting wheel together with the locking wheel, pro-viding the correct combination is set; this is accompanied by a movement of the bar into the locked position. The movement of the bar then leads to the other transmission levers being moved with it. This makes it more difficult ~
to manipulate the combination, because the connection between the transmission lever and the locking wheels is disengaged. Then, any unauthorized or undesired opening forces that are introduced into the combination lock by way of the striker plate are intercepted exclusively by the bar, transversely to the direction in which it moves. This means that no powerful forces can act on the transmission lever or on the locking wheels. If the correct combination has been set by way of the setting wheels, the transmission lever will be moved into engagement with the locking wheel by the spring-loaded slide, which makes it possible for the slide to move into the position in which the striker plate is released. Thus, no additional opening operations are required, which makes the combination lock very user friendly.
An advantageous development is that a locking wheel and a setting wheel are arranged on each shaft. The particular shaft can be manufactured from the same material as the housing, which is produced by injection moulding, and it can be produced in one piece with this. This also reduces the number of parts in the lock.
The transmission lever forms a short and a long lever arm, when the long lever arm is located on the striker plate side. In conjunction with the locking wheel, this con-figuration permits a relatively long path for the bar when the locking wheel is rotated from the correct combination-setting position.
It has been found to be particularly favourable that the long lever arm be about three times as long as the short lever arm.
- A configuration that takes up little space results from the feature that the lever is configured as an angle lever.
The long lever arm overlaps the locking wheel and makes it possible to locate the spring-loaded bar close to the lock-ing wheels, which are arranged in a row. The shaft that passes through the locking wheels is parallel to the bar.
With the incorporation of a re-setting device, the slide assumes an additional function, in that it forms a pro-jection that blocks setting a new combination apart from - setting the setting wheel to the combination. If the combination has not been set, the slide is in its locking position. Then the projection prevents coupling engagement between setting wheel and locking wheel from being broken by way of the combination re-setting device.
According to the present invention, an adjusting bar is provided to re-set the combination; this adjusting slide extends between the locking wheels and setting wheels. It can be arranged between the locking wheels and the slide, so that only a small amount of space is required for the adjusting slide. Movement of this then results in the coupling between the setting wheels and locking wheels being disengaged.
From the stand-point of operation, it has been found advantageous that it is possible to disengage the con-nection between locking wheels and setting wheels by Wo 95/11360 4 PCT/EP94/03419 rotating the adjusting slide about its longitudinal axis.
When this is done, the locking wheels and setting wheels are spread apart from each other and, in addition, they are de-coupled. Since, in this state, the locking wheels are S fixed in position by the transmission levers, the setting wheels can be rotated into a desired position. In order that the adjusting slide is not to be held fast after rotation, it is moved longitudinally and in this position the adjusting slide is prevented from pivoting back. It pivots back only after being moved back, when this is effected by the springs that connect the setting wheels and locking wheels.
A feature that is particularly advantageous from the stand-- point of operation is that the adjusting slide has an actu-ating section that projects above the lock base plate; this forms an actuating depression on its face side. This allows the actuating section to extend for a short distance above the base plate of the lock. The actuating depression serves as a point of contact on the actuating section, into which a suitable object is introduced. According to the present invention, the actuating depression is formed in the approximate shape of the tip of a ball-point pen. A
ball pen is usually available and can be used to move the adjusting slide about its longitudinal axis and move it longitudinally once the tip of the ball pen has been inserted.
The present invention will be described below on the basis of an embodiment shown in the drawings appended hereto.
These drawings show the following:
.
30 Figure 1: a front view of a combination lock config-ured according to the present invention, showing the setting wheels;~
Figure 2: a plan view of Figure l;
Figure 3: a cut-away view of Figure 2;
` 2152376 Figure 4: an enlarged front view of a combination lock, partially cut away, with the bar in the release position;
Figure 5: a ~iew as in Figure 4, with the adjusting slide moved so as to permit a new combina-tion to be set;
Figure 6: a view as in Figure 4, in which the number wheels have been rotated, moving the bar into its locked position;
10 Figure 7: a cross-section on the line VII-VII in Figure 4;
Figure 8: a cross section on the line VIII-VIII in Figure 5;
~ Figure 9: a perspecti~e view of the bar;
15 Figure 10: the adjusting slide, in perspective;
Figure 11: the transmission lever in perspective;
Figure 12: the setting wheel, the locking wheel, and the coil spring that acts upon the locking bar, shown in perspective, arranged one above the otheri Figure 13: the T-fastener that secures the lock housing to the bottom of the case.
The combination lock that can be fitted to a bag, a case, or to a similar object comprises a lock housing 1, consist-ing of two housing halves 2 and 3. These are snapped to-gether and form the lock housing. The loc~ base plate 4 that is formed by the housing half 3 is provided with a projecting edge 5 for this purpose, and this is shaped so as to fit in an outer edge 6 of the housing half 2. In the position that is opposite the lock base plate 4, the hous-ing half 2 forms a lock cover 7 that has an access aperture in its upper area.
A bar 17 is another component of the combination lock, and this performs the function of a bolt. The bar 17 is guided on the long side of the lock housing 1 that is opposite the Wo 95/11360 6 PCT/EP94/03419 access apertures 8. The direction in which it is moved is parallel to the connecting line that passes through the bearing journals 9. The lock housing 1 has two access apertures 18 on this particular long side and these are used to guide the locking hooks 19 of a striker plate 20.
If, for example, the combination lock is installed in a case, the lock housing 1 is secured on the bottom K of the case, and the striker plate 20 is secured to the lid of the case. A toggle bolt is used to secure the lock housing.
This toggle bolt comprises a head 45, a shaft 46, and a two-wing toggle 47, and this passes through a matching opening 21 in the base plate of the lock 4; it is secured by being rotated through 9~ degrees. This permits simp~e installation of the lock housing 1. In the same way, - 15 should repairs be necessary, the housing can be replaced - very rapidly. A transverse slot 48 in ~he head 45 permits application of a tool to rotate the head 45 of the toggle bolt 44. It is also possible to use a coin for this purpose.
The bar 17 is slotted and configured to line up with the access openings 28 and permits entry of the locking hooks 19. Two cross pieces lie over the particular slot opening 22, and the locking hooks 19 fit behind these in the locked position (see Figure 2). A centring pin 24 extends from one face end of the bar 17. A compression spring 25 is installed on this and one end of this spring lies against the side wall 26 of the housing half 3, and the other end rests on the front side of the slide 27. Because of this, the opposite end of the bar 17 is displaced toward the opposite side wall 27 of the housing half 3 (see Figure 4).
Cross pieces 28, which fit into the elongated slot 29 on the lock-base side, serve to guide the bar 17.
In addition, the bar 17 incorporates three journals 30 that extend in the same direction as the cross pieces 28. Each journal 30 passes through a Y-slot 31 in the transmission . , 2152376 .~ .
lever 32. Each transmission lever 32 is supported on a pivot pin in the base plate of the lock. The transmission lever 32 has a short lever arm 34 that forms a tooth at the end, and a long lever arm 35 that incorporates the Y-slot 31. The long lever is approximately three times as long as the short lever arm 34. The illustration shows that the transmission lever 32 is cranked (see, in particular, Figure 11).
If the combination has been correctly set, the tooth-like short lever arm 34 enters into a detent recess 36 in the locking wheel 11, which is in its side wall. The thickness of the locking wheel 11 is~approximately twice that of the transmission lever 32, so that despite movement of the - locking wheel 11 in the direction of the lock base plate 4 it is always ensured that it acts on the locking wheel 11.
If the combination has been correctly set, the compression spring 25 can move the bar 17 as far as the end position that is shown in Figure 4. All of the transmission levers 32 are then oriented so as to be parallel to each other.
A projection 37 is adjacent to the centring pin 24 of the bar 17. This pin prevents re-setting the combination if this has not been set. An adjusting slide 38 that can be displaced in the longitudinal direction of the lock housing 1 serves to reset the combination. Parallel edge sections of this adjusting slide 38 extend between the locking wheels 11 and the setting wheels 12 (see, in particular, Figure 7).
An actuating sector 40 that passes through the lock base plate 4 and projects beyond this extends from the adjusting slide 38. If the combination has been set, the actuating sector 40 extends in a notch 41 of an opening 42 in the lock base plate. At the face end, the actuating section 40 forms an actuating depression that is matched to the shape of the tip of a ball-point pen.
Wo 95/11360 8 PCT/EP94/03419 The combination lock works in the following manner: if the com.bination lock is in the locked position, the locking hooks 19 of the striker plate 20 latch behind the cross pieces 23 of the bar 17, as is shown in Figure 6. The short lever arms 34 of the transmission levers 32 rest on the periphery of the locking wheels 11. The transmission levers 32 are pivoted by this, and these levers move the bar 17 against the force of the spring by way of the journal/slot engagement 30, 31 and thereby hold the cross pieces 23 at the level of the closing hooks 19 of the striker plate 20. In this position, the projection 37 of the bar 17 extends into the area of the opening 42. Thus, the adjusting slide 38 cannot be rotated about its longi-tudinal axis by applying force to the actuating section 40, - 15 in order to spread the locking wheels 11 apart in the direction of the lock base plate 4, against the force of the spring, in order to disengage the cog 13 from the recess 14 in the cog.
In order to unlock the combination lock it is necessary to set the correct combination (see Figure 4). Then, the short lever arms 34 of the transmission levers 32 can enter the detent recesses 36 of the locking wheels 11. If a setting wheel with the locking wheel is not rotated into the appropriate position, the casing end of the short lever arm rests on the locking wheel 11. The bar 17 cannot move.
In the same way, the r~m~;ning transmission levers 32 remain in position, parallel to the above-mentioned trans-mission levers. Thus, it is absolutely essential that the com.bination be set in accordance with the instructions, so that the short lever arms 34 are opposite the detent re-cesses 36. Then, because of the journal/slot connection, the tr~n~m;Csion levers 32 are pivoted by the force of the compression spring 25, so that the short tooth-like lever arms 34 enter the detent recesses 36. At the same time, when the bar 17 is moved, the cross pieces 23 release the .
locking hooks 19, and the striker plate can be disengaged (see Figure 5).
In order to reset a new combination, the existing combina-tion must be set as shown in Figure 4. The projection 37 must then be moved far enough that the actuating section 40 can be pivoted, when the adjusting slide 38 rotates about its longitudinal axis and so that the locking wheels 11 can be moved in the direction of the lock base plate 4. When this is done, the coupling between the locking wheels 11 and the setting wheels 12 is disengaged and the cogs 13 of the locking wheels 12 leave the recesses 14 in the cogs in the setting wheels 12 (see Figure 8). Despite this movement, the locking wheels 11 remain coupled to the - transmission levers 32. After the adjusting slide 38 has pivoted about its longitll~;n~l axis, the adjusting slide 38 can be moved longitudinally, when the actuating section 40 enters the area of the aperture 42. This is large enough that it is not possible for the adjusting slide 38 to pivot back. In addition, the coupling between locking wheels 11 and setting wheels 12 is maintained in this position.
Then, the setting wheels 12 can be rotated in order to set a new combination. The locking wheels 11 remain in this position, because the short tooth-like lever arms 34 of the transmission levers 32 are in the detent recesses 36 of the locking wheels 11. Once the combination has been reset the adjusting slide 38 is moved back. As soon as its actuating section 40 is aligned with the notch 41 o~ the apertures 42, the compression spring 16 can move the locking wheels 11 in the direction of the setting wheels 12, thereby establishing the positive coupling between these wheels 11 and 12. The setting wheels can now be rotated in order to set up a new combination. The locking wheels 11 remain in position, because the short, tooth-like lever arms 34 of the transmission levers 32 are engaged in the detent recesses in the locking wheels 11. The adjusting slide 38 has to be moved back after the new combination has been set. As soon as its actuating depression 40 is aligned with the notch 41 in the opening 42, the locking wheels 11 can be moved toward the setting wheels 12 by the springs 16 so as to connect the wheels 11 and 12 positively. The ad-justing slide 38 is rotated back into its starting posi-tion, as shown in Figure 7, by the returning locking wheels 11, when the actuating section 40 moves into the notch 41 of the opening 42. The appropriate movement of the ad-justing slide 38 can be effected with the help of a ball-point pen, when the tip of the ball-point pen refill fits into the actuating depression 43 of the actuating sec-tion 40.
In order to make it more difficult to manipulate the com-bination lock, in addition to its detent recesses 36, each locking wheel 11 can also have a number of extra irregular-ities around its periphery.
The features of the present invention that are set out in the preceding description, the drawings, and the claims can be important for the realization of the present invention, either individually or in any combination. All of the features disclosed are essential to the present invention.
The disclosed contents of the associated priority documents (copy of the pre-application) are also to be included in the disclosure of this application.
locking wheel and a setting wheel are arranged on a common shaft, and a transmission lever is provided between the wheels as a connecting element. In the event that a plur-ality of setting wheels and locking wheels are arranged one behind the other in a row, it is sufficient to rotate a single setting wheel together with the locking wheel, pro-viding the correct combination is set; this is accompanied by a movement of the bar into the locked position. The movement of the bar then leads to the other transmission levers being moved with it. This makes it more difficult ~
to manipulate the combination, because the connection between the transmission lever and the locking wheels is disengaged. Then, any unauthorized or undesired opening forces that are introduced into the combination lock by way of the striker plate are intercepted exclusively by the bar, transversely to the direction in which it moves. This means that no powerful forces can act on the transmission lever or on the locking wheels. If the correct combination has been set by way of the setting wheels, the transmission lever will be moved into engagement with the locking wheel by the spring-loaded slide, which makes it possible for the slide to move into the position in which the striker plate is released. Thus, no additional opening operations are required, which makes the combination lock very user friendly.
An advantageous development is that a locking wheel and a setting wheel are arranged on each shaft. The particular shaft can be manufactured from the same material as the housing, which is produced by injection moulding, and it can be produced in one piece with this. This also reduces the number of parts in the lock.
The transmission lever forms a short and a long lever arm, when the long lever arm is located on the striker plate side. In conjunction with the locking wheel, this con-figuration permits a relatively long path for the bar when the locking wheel is rotated from the correct combination-setting position.
It has been found to be particularly favourable that the long lever arm be about three times as long as the short lever arm.
- A configuration that takes up little space results from the feature that the lever is configured as an angle lever.
The long lever arm overlaps the locking wheel and makes it possible to locate the spring-loaded bar close to the lock-ing wheels, which are arranged in a row. The shaft that passes through the locking wheels is parallel to the bar.
With the incorporation of a re-setting device, the slide assumes an additional function, in that it forms a pro-jection that blocks setting a new combination apart from - setting the setting wheel to the combination. If the combination has not been set, the slide is in its locking position. Then the projection prevents coupling engagement between setting wheel and locking wheel from being broken by way of the combination re-setting device.
According to the present invention, an adjusting bar is provided to re-set the combination; this adjusting slide extends between the locking wheels and setting wheels. It can be arranged between the locking wheels and the slide, so that only a small amount of space is required for the adjusting slide. Movement of this then results in the coupling between the setting wheels and locking wheels being disengaged.
From the stand-point of operation, it has been found advantageous that it is possible to disengage the con-nection between locking wheels and setting wheels by Wo 95/11360 4 PCT/EP94/03419 rotating the adjusting slide about its longitudinal axis.
When this is done, the locking wheels and setting wheels are spread apart from each other and, in addition, they are de-coupled. Since, in this state, the locking wheels are S fixed in position by the transmission levers, the setting wheels can be rotated into a desired position. In order that the adjusting slide is not to be held fast after rotation, it is moved longitudinally and in this position the adjusting slide is prevented from pivoting back. It pivots back only after being moved back, when this is effected by the springs that connect the setting wheels and locking wheels.
A feature that is particularly advantageous from the stand-- point of operation is that the adjusting slide has an actu-ating section that projects above the lock base plate; this forms an actuating depression on its face side. This allows the actuating section to extend for a short distance above the base plate of the lock. The actuating depression serves as a point of contact on the actuating section, into which a suitable object is introduced. According to the present invention, the actuating depression is formed in the approximate shape of the tip of a ball-point pen. A
ball pen is usually available and can be used to move the adjusting slide about its longitudinal axis and move it longitudinally once the tip of the ball pen has been inserted.
The present invention will be described below on the basis of an embodiment shown in the drawings appended hereto.
These drawings show the following:
.
30 Figure 1: a front view of a combination lock config-ured according to the present invention, showing the setting wheels;~
Figure 2: a plan view of Figure l;
Figure 3: a cut-away view of Figure 2;
` 2152376 Figure 4: an enlarged front view of a combination lock, partially cut away, with the bar in the release position;
Figure 5: a ~iew as in Figure 4, with the adjusting slide moved so as to permit a new combina-tion to be set;
Figure 6: a view as in Figure 4, in which the number wheels have been rotated, moving the bar into its locked position;
10 Figure 7: a cross-section on the line VII-VII in Figure 4;
Figure 8: a cross section on the line VIII-VIII in Figure 5;
~ Figure 9: a perspecti~e view of the bar;
15 Figure 10: the adjusting slide, in perspective;
Figure 11: the transmission lever in perspective;
Figure 12: the setting wheel, the locking wheel, and the coil spring that acts upon the locking bar, shown in perspective, arranged one above the otheri Figure 13: the T-fastener that secures the lock housing to the bottom of the case.
The combination lock that can be fitted to a bag, a case, or to a similar object comprises a lock housing 1, consist-ing of two housing halves 2 and 3. These are snapped to-gether and form the lock housing. The loc~ base plate 4 that is formed by the housing half 3 is provided with a projecting edge 5 for this purpose, and this is shaped so as to fit in an outer edge 6 of the housing half 2. In the position that is opposite the lock base plate 4, the hous-ing half 2 forms a lock cover 7 that has an access aperture in its upper area.
A bar 17 is another component of the combination lock, and this performs the function of a bolt. The bar 17 is guided on the long side of the lock housing 1 that is opposite the Wo 95/11360 6 PCT/EP94/03419 access apertures 8. The direction in which it is moved is parallel to the connecting line that passes through the bearing journals 9. The lock housing 1 has two access apertures 18 on this particular long side and these are used to guide the locking hooks 19 of a striker plate 20.
If, for example, the combination lock is installed in a case, the lock housing 1 is secured on the bottom K of the case, and the striker plate 20 is secured to the lid of the case. A toggle bolt is used to secure the lock housing.
This toggle bolt comprises a head 45, a shaft 46, and a two-wing toggle 47, and this passes through a matching opening 21 in the base plate of the lock 4; it is secured by being rotated through 9~ degrees. This permits simp~e installation of the lock housing 1. In the same way, - 15 should repairs be necessary, the housing can be replaced - very rapidly. A transverse slot 48 in ~he head 45 permits application of a tool to rotate the head 45 of the toggle bolt 44. It is also possible to use a coin for this purpose.
The bar 17 is slotted and configured to line up with the access openings 28 and permits entry of the locking hooks 19. Two cross pieces lie over the particular slot opening 22, and the locking hooks 19 fit behind these in the locked position (see Figure 2). A centring pin 24 extends from one face end of the bar 17. A compression spring 25 is installed on this and one end of this spring lies against the side wall 26 of the housing half 3, and the other end rests on the front side of the slide 27. Because of this, the opposite end of the bar 17 is displaced toward the opposite side wall 27 of the housing half 3 (see Figure 4).
Cross pieces 28, which fit into the elongated slot 29 on the lock-base side, serve to guide the bar 17.
In addition, the bar 17 incorporates three journals 30 that extend in the same direction as the cross pieces 28. Each journal 30 passes through a Y-slot 31 in the transmission . , 2152376 .~ .
lever 32. Each transmission lever 32 is supported on a pivot pin in the base plate of the lock. The transmission lever 32 has a short lever arm 34 that forms a tooth at the end, and a long lever arm 35 that incorporates the Y-slot 31. The long lever is approximately three times as long as the short lever arm 34. The illustration shows that the transmission lever 32 is cranked (see, in particular, Figure 11).
If the combination has been correctly set, the tooth-like short lever arm 34 enters into a detent recess 36 in the locking wheel 11, which is in its side wall. The thickness of the locking wheel 11 is~approximately twice that of the transmission lever 32, so that despite movement of the - locking wheel 11 in the direction of the lock base plate 4 it is always ensured that it acts on the locking wheel 11.
If the combination has been correctly set, the compression spring 25 can move the bar 17 as far as the end position that is shown in Figure 4. All of the transmission levers 32 are then oriented so as to be parallel to each other.
A projection 37 is adjacent to the centring pin 24 of the bar 17. This pin prevents re-setting the combination if this has not been set. An adjusting slide 38 that can be displaced in the longitudinal direction of the lock housing 1 serves to reset the combination. Parallel edge sections of this adjusting slide 38 extend between the locking wheels 11 and the setting wheels 12 (see, in particular, Figure 7).
An actuating sector 40 that passes through the lock base plate 4 and projects beyond this extends from the adjusting slide 38. If the combination has been set, the actuating sector 40 extends in a notch 41 of an opening 42 in the lock base plate. At the face end, the actuating section 40 forms an actuating depression that is matched to the shape of the tip of a ball-point pen.
Wo 95/11360 8 PCT/EP94/03419 The combination lock works in the following manner: if the com.bination lock is in the locked position, the locking hooks 19 of the striker plate 20 latch behind the cross pieces 23 of the bar 17, as is shown in Figure 6. The short lever arms 34 of the transmission levers 32 rest on the periphery of the locking wheels 11. The transmission levers 32 are pivoted by this, and these levers move the bar 17 against the force of the spring by way of the journal/slot engagement 30, 31 and thereby hold the cross pieces 23 at the level of the closing hooks 19 of the striker plate 20. In this position, the projection 37 of the bar 17 extends into the area of the opening 42. Thus, the adjusting slide 38 cannot be rotated about its longi-tudinal axis by applying force to the actuating section 40, - 15 in order to spread the locking wheels 11 apart in the direction of the lock base plate 4, against the force of the spring, in order to disengage the cog 13 from the recess 14 in the cog.
In order to unlock the combination lock it is necessary to set the correct combination (see Figure 4). Then, the short lever arms 34 of the transmission levers 32 can enter the detent recesses 36 of the locking wheels 11. If a setting wheel with the locking wheel is not rotated into the appropriate position, the casing end of the short lever arm rests on the locking wheel 11. The bar 17 cannot move.
In the same way, the r~m~;ning transmission levers 32 remain in position, parallel to the above-mentioned trans-mission levers. Thus, it is absolutely essential that the com.bination be set in accordance with the instructions, so that the short lever arms 34 are opposite the detent re-cesses 36. Then, because of the journal/slot connection, the tr~n~m;Csion levers 32 are pivoted by the force of the compression spring 25, so that the short tooth-like lever arms 34 enter the detent recesses 36. At the same time, when the bar 17 is moved, the cross pieces 23 release the .
locking hooks 19, and the striker plate can be disengaged (see Figure 5).
In order to reset a new combination, the existing combina-tion must be set as shown in Figure 4. The projection 37 must then be moved far enough that the actuating section 40 can be pivoted, when the adjusting slide 38 rotates about its longitudinal axis and so that the locking wheels 11 can be moved in the direction of the lock base plate 4. When this is done, the coupling between the locking wheels 11 and the setting wheels 12 is disengaged and the cogs 13 of the locking wheels 12 leave the recesses 14 in the cogs in the setting wheels 12 (see Figure 8). Despite this movement, the locking wheels 11 remain coupled to the - transmission levers 32. After the adjusting slide 38 has pivoted about its longitll~;n~l axis, the adjusting slide 38 can be moved longitudinally, when the actuating section 40 enters the area of the aperture 42. This is large enough that it is not possible for the adjusting slide 38 to pivot back. In addition, the coupling between locking wheels 11 and setting wheels 12 is maintained in this position.
Then, the setting wheels 12 can be rotated in order to set a new combination. The locking wheels 11 remain in this position, because the short tooth-like lever arms 34 of the transmission levers 32 are in the detent recesses 36 of the locking wheels 11. Once the combination has been reset the adjusting slide 38 is moved back. As soon as its actuating section 40 is aligned with the notch 41 o~ the apertures 42, the compression spring 16 can move the locking wheels 11 in the direction of the setting wheels 12, thereby establishing the positive coupling between these wheels 11 and 12. The setting wheels can now be rotated in order to set up a new combination. The locking wheels 11 remain in position, because the short, tooth-like lever arms 34 of the transmission levers 32 are engaged in the detent recesses in the locking wheels 11. The adjusting slide 38 has to be moved back after the new combination has been set. As soon as its actuating depression 40 is aligned with the notch 41 in the opening 42, the locking wheels 11 can be moved toward the setting wheels 12 by the springs 16 so as to connect the wheels 11 and 12 positively. The ad-justing slide 38 is rotated back into its starting posi-tion, as shown in Figure 7, by the returning locking wheels 11, when the actuating section 40 moves into the notch 41 of the opening 42. The appropriate movement of the ad-justing slide 38 can be effected with the help of a ball-point pen, when the tip of the ball-point pen refill fits into the actuating depression 43 of the actuating sec-tion 40.
In order to make it more difficult to manipulate the com-bination lock, in addition to its detent recesses 36, each locking wheel 11 can also have a number of extra irregular-ities around its periphery.
The features of the present invention that are set out in the preceding description, the drawings, and the claims can be important for the realization of the present invention, either individually or in any combination. All of the features disclosed are essential to the present invention.
The disclosed contents of the associated priority documents (copy of the pre-application) are also to be included in the disclosure of this application.
Claims (11)
1. A combination lock for bags, cases, or the like, with a plurality of setting wheels that are supported on journals, for setting a combination that permits the lock to be opened, with locking wheels that work in conjunction with these, and a bar that is biased by a spring towards its locked position, there being a recess in each setting wheel so as to prevent the slide from being moved when the combination is set, characterized in that individually supported transmission levers (32) are arranged between the locking wheels (11) and the bar (17) one end of these touching the locking wheels. (11) and the other end of these being in a journal/slot engagement (30/31) with the bar (17).
2. A combination lock as defined in Claim 1 or in partic-ular thereafter, characterized in that in each instance a locking wheel (11) and a setting wheel (12) are arranged on a shaft (bearing journal 9).
3. A combination lock as defined in one or more of the preceding claims, or in particular thereafter, character-ized in that the transmission levers (32) form a short and a long lever arm (34, 35), the long lever arm [35) being located at the bar end.
4. A combination lock as defined in one or more of the preceding claims or in particular thereafter, characterized in that the long lever arm (35) is approximately three times as long as the short lever arm (34).
5. A combination lock as defined in one or more of the preceding planes or in particular thereafter, characterized in that the transmission lever (32) is an angle lever.
6. A combination lock as defined in Claim 1, wherein a new-combination re-setting system is provided, character-ized in that the bar (17) forms a projection (37) that makes it impossible to reset the combination apart from re-setting the setting wheels (12) to the combination.
7. A combination lock as defined in one or more of the preceding claims or in particular thereafter, characterized in that an adjusting slide (38) is provided for setting a new combination, said adjusting slide extending between the locking wheels (11) and the setting wheels (12).
8. A combination lock as defined in one or more of the preceding claims, or in particular thereafter, character-ized in that if it is rotated about its longitudinal axis, the adjusting side (38) makes it possible to disengage the connection between locking wheels (11) and setting wheels (12).
9. A combination lock has defined in one or more of the preceding claims or in particular thereafter, characterized in that the adjusting side (38) has a transverse actuating section (40) that projects above the base plate (4) of the lock.
10. A combination lock as defined in one or more of the preceding claims, or in particular thereafter, character-ized in that the actuating section (40) forms an actuating depression (43) at its face side.
11. A combination lock as defined in one or more of the preceding planes, or in particular thereafter, character-ized in that the actuating depression (43) is matched approximately the to the tip of a ball-point pen.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4336172A DE4336172C2 (en) | 1993-10-22 | 1993-10-22 | Permutation lock for bags, suitcases or the like |
| DEP4336172.2 | 1993-10-22 | ||
| PCT/EP1994/003419 WO1995011360A1 (en) | 1993-10-22 | 1994-10-17 | Combination lock for bags, cases and similar articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2152376A1 true CA2152376A1 (en) | 1995-04-27 |
Family
ID=6500835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002152376A Abandoned CA2152376A1 (en) | 1993-10-22 | 1994-10-17 | Combination lock for bags, cases and similar articles |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH08507344A (en) |
| CA (1) | CA2152376A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252745A (en) * | 2018-11-01 | 2019-01-22 | 苏州琨山智能科技有限公司 | Double trick lock structure |
-
1994
- 1994-10-17 JP JP7511317A patent/JPH08507344A/en active Pending
- 1994-10-17 CA CA002152376A patent/CA2152376A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252745A (en) * | 2018-11-01 | 2019-01-22 | 苏州琨山智能科技有限公司 | Double trick lock structure |
| CN109252745B (en) * | 2018-11-01 | 2024-03-19 | 苏州琨山通用锁具有限公司 | Double-row cipher lock structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08507344A (en) | 1996-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |