JP4070086B2 - Key device - Google Patents

Description

001
BACKGROUND OF THE INVENTION
The present invention relates to a key device used in a wide range of doors, mailboxes, safe boxes, and the like, and more particularly to a key device that can freely set and change key numbers by mechanical control.
[002]
[Problems to be solved by the invention]
In a conventional key device operated by a mechanical opening / closing mechanism, since an opening / closing key number is determined for each lock, if the number is known to others, the same key cannot be used continuously. Even if this is not the case, long-term use of the same key number is problematic in terms of safety, and if the key number can be changed as appropriate, it is extremely convenient for ensuring safety.
003
However, the conventional machine control key device has a structure in which the number of digits and the number of the open / close key are determined for each lock, and cannot be freely changed. Therefore, to change the key number and the number of digits, the key device itself has to be replaced. This not only increases the cost, but also delays the risk due to the complexity of the replacement, which may lead to damage such as theft.
[004]
Accordingly, it is an object of the present invention to provide a key device that can be used by freely setting and changing the open / close key number and the number of digits using only a mechanical mechanism.
[005]
[Means for Solving the Problems]
In order to achieve the above object, a key device of the present invention comprises: a key casing in which a plurality of openings through which a head of a key piece enters and exits are formed on a front plate of a hollow frame body; and an engagement protrusion on a side surface of the shaft body. A key-type cam piece having an upper locking piece and a lower locking piece with a predetermined axial width that selectively protrudes outward in the transverse direction of the shaft body is slidably fitted to the head. A plurality of key pieces incorporated so that the portion enters and exits from the key casing through the right angle: a plurality of openings that are supported so as to be slidable in the inner axial direction of the key casing and allow each key piece to be slidably engaged In addition, a slope cam surface is formed on the edge wall thickness of the opening, and the slide is made to engage with the engagement protrusion of the key piece to push the key piece head outward. With plate: Internal direction of key casing An opening / closing plate that is slidably supported and that forms a plurality of passages through which each key piece is slidable, and slits that pass through the protruding locking pieces of the key pieces on both left and right sides of the passages: Close to the open / close plate and supported so as to be slidable in the axial direction of the casing, and forms a plurality of passages through which the shafts and the locking pieces of the respective key pieces are slidable. A set plate formed with an inclined cam side that engages with the protruding locking piece of the shaft body and pushes the locking piece back into the shaft body of the key piece, and includes upper and lower locking pieces of the key-type cam piece. The depth width of the upper plate is set to a dimension that interferes with the thickness of the superimposed set plate and reset plate, and at the position where the key piece is pushed in, the upper locking piece corresponds to the plate width of the set plate and reset plate. And, characterized in that the lower locking piece is disposed so as to face the plate width of the set plate and the reset plate pullback position.
[006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
The key device 1 of the present invention includes a key casing 2, a plurality of key pieces 3 fitted at right angles to the front surface of the key casing 2, and a reset plate that is slidably mounted in the inner axial direction of the key casing 2. 4. An opening / closing plate 5 and a set plate 6 are provided as essential constituent members.
[007]
As shown in FIGS. 1 and 2, the key casing 2 is formed with a plurality of through holes 2 b for projecting the heads of the key pieces 3 on the front plate 2 a of the hollow frame.
[008]
As shown in FIGS. 3 and 4, the key piece 3 integrally has an engagement protrusion 3 b on the side surface of the shaft body 3 a corresponding to the passage 2 b of the key casing 2, and is substantially in the transverse direction of the shaft body 3 a. A Z-shaped key-shaped cam piece 7 is slidably fitted.
The engaging projection 3b is a member that serves as a receiving portion when the head of the key piece 3 is pushed back to the outside of the key casing passage 2b, and the lower receiving surface is formed at a downward inclined angle. Further, the Z-shaped key-shaped cam piece 7 integrally has an upper locking piece 7a and a lower locking piece 7b having a predetermined axial width, and the upper locking piece 7a and the lower side are slid by sliding in the key piece transverse direction. The locking piece 7b is formed to have a dimension that selectively protrudes to the outside of the shaft body 3a of the key piece 3. The slide of the key-type cam piece 7 is preferably protruded alternatively with a feeling of moderation, preferably by a spring mechanism.
[0109]
As shown in FIGS. 4 to 6, the reset plate 4 passes through the shaft projection 3 b of the key piece 3 inserted into the through hole 2 a of the key casing 2 and the engagement protrusion 3 b, and is slidably engaged with the key piece 3. A plurality of through-holes 8 having a longitudinal dimension that allows the engagement of the engagement projections 3b to the lower receiving surface of the engagement projections 3b. In combination, an inclined cam surface 8 a that pushes the head of the key piece 3 back to the outside of the key casing 2 is formed.
[0101]
As shown in FIG. 7, the opening / closing plate 5 passes through the shaft body 3a of the key piece 3 inserted into the through hole 2a of the key casing 2 and has a longitudinal dimension of the opening 9 that allows sliding engagement with the shaft body 3a. Left and right slits 9a and 9b through which the lower locking pieces 7a and 7b are passed are provided on both sides of the through-hole 9 in the axial direction on the key-type cam piece 7 protruding from the side surface of the shaft body 3a.
[0111]
As shown in FIG. 8, the set plate 6 passes through the key piece 3 and the key-type cam piece 7 which are inserted into the through-hole 2a of the key casing 2, the lower locking pieces 7a and 7b, and the shaft 3a. The upper locking piece of the key-type cam piece 7 that has a plurality of longitudinal openings 10 that allow sliding engagement and that has left and right edges protruding from the side surfaces of the shaft 3a of the key piece 3 7a, or taper cam edges 10a, 10b that engage with the lower locking piece 7b to push one of the locking pieces 7a or 7b back into the shaft 3a of the key piece 3 and project the other to the outside of the shaft 3a. Is formed.
[0112]
Thus, in the illustrated embodiment, as shown in FIG. 4, the opening / closing plate 5 is disposed on the set plate 6, and the reset plate 4 is disposed above the opening plate 5. 9 and 10, the shaft 3 a of the key piece 3 and the key-type cam piece 7 are inserted at right angles, and the through hole 2 b of the front plate 2 a is passed through the head of the key piece 3 group, and then formed on the side surface of each plate. The protruding edge 11 is slidably supported by facing the elongated opening 11 ′ of the side plate of the key casing 2.
In the illustrated embodiment, a pair of frames having an L-shaped cross section are butted together to form a key casing 2 having a hollow frame.
[0113]
The depth widths of the upper locking piece 7a and the lower locking piece 7b of the key-type cam piece 7 are set to dimensions that face the plate thickness of the superimposed set plate 6 and opening / closing plate 5, and the key piece 3 The positional relationship between the key-type cam piece 7 and the set plate 6 and the opening / closing plate 5 is such that the upper locking piece 7a of the key-type cam piece 7 is the width of the set plate 6 and the opening / closing plate 5 at the position where the key piece 3 is pushed. The lower locking piece 7b of the key-type cam piece 7 is set to face the plate width of the set plate 6 and the opening / closing plate 5 at the position where the key piece 3 is pulled back.
[0142]
Although the slide operation levers of the reset plate 4, the opening / closing plate 5 and the set plate 6 may be provided independently for each plate, in the embodiment shown in the figure, only the set plate 6 is provided with its own operation lever 12, and the reset plate 4 and the opening / closing plate 5 are provided. Each of the reset plates 4 and the opening / closing plate 5 is slid by a common operation lever 13 after the respective functions are operated by sliding in opposite directions.
[0151]
For this reason, in the embodiment shown in the figure, the elongated holes 14 and 15 in the axial direction are formed in the overlapped reset plate 4 and opening / closing plate 5 so as to pass through the shaft of the operation lever 13 fixed to the upper and lower plates, and the reset plate 4 The long hole 14 of the opening / closing plate 5 and the long hole 15 of the opening / closing plate 5 are formed when the one side end (right end in the drawing) of the long hole 14 of the reset plate 4 is locked on one side of the shaft of the operating lever 13. The dimension and the positional relationship are set so that the other side of the shaft of the operating lever 13 is locked to the other side end (left end in the figure) of the five long holes 15.
[0163]
With the above configuration, when the operating lever 13 is moved to the right side of the figure, only the reset plate 4 slides to the right side and the key piece 3 is pushed back. When the operating lever 13 is moved to the left side of the figure, only the opening / closing plate 5 is on the left side. And the right end is pulled out from the keyed counterpart member, and the door is opened.
[0173]
The reset plate 4, the opening / closing plate 5, and the set plate 6 are urged so as to return to their original positions by a spring 16 after sliding in the direction of the arrow.
In particular, the reset plate 4 and the opening / closing plate 5 are fitted with a common spring 16 between the claws of the notches 17 and 18 formed on one side, and a member that selectively slides in the opposite direction is the other side. The springs 16 locked to the fixing member return to each other.
[0181]
The set plate 6 is slid independently by a long hole 19 that is not engaged with the operation lever 13, and although not shown, the operation lever 13 protrudes from the key casing 2 to be movable. A slit is formed.
[0209]
The key casing 2, the opening / closing plate 5, and the set plate 6 of the key device 1 can be made of a thin and strong metal plate such as stainless steel.
On the other hand, since it is necessary to form the inclined cam surface 8a on the edge of the opening 8, the reset plate 4 is desirably a plastic plate having a predetermined thickness.
[0202]
Next, the operation of the present invention will be described.
[Pre-processing of recitation key setting]
When the reset plate 4 is slid to the right by the operation lever 13, the inclined cam surface 8a of the reset plate 4 slides below the engaging projections 3b of all the key pieces 3, and pushes all the key pieces 3 forward. Accordingly, in this state, the key-type cam pieces 7 of all the key pieces 3 have the upper locking pieces 7a positioned above the opening / closing plates 5 and the lower locking pieces 7b being the openings 9 of the opening / closing plates 5 and the set plates 6. 10.
[021]
[Reciting key settings]
When an arbitrary number of key pieces 3 arbitrarily selected as recitation keys are pushed in this state, the upper locking pieces 7a of the selected key pieces are positioned at the openings 9 and 10 of the opening and closing plate 5 and the set plate 6. Here, when the set plate 6 is slid to the left, the upper locking piece 7a of the selected key piece is pushed into the shaft body of the key piece 3, and at the same time, the lower locking piece 7b is below the set plate 6 and outside the shaft body. The opening / closing plate 5 is slidable by being projected to be set as a recitation key piece.
[022]
[Lock]
In this state, when the reset plate 4 is slid to the right in the drawing, the recital key is pushed out, and the protruding lower locking piece 7b of the recital key piece enters the slit 9a of the opening 9 of the opening / closing plate 5 to open the opening / closing plate 5 Is made non-slidable and locked.
[023]
[Unlocking]
When the reciting key is pushed in, the lower locking piece 7b of the reciting key that has locked the open / close plate 5 moves below the open / close plate 5, so that the open / close plate 5 can slide and the key is opened.
[Re-locking]
When the reset plate 4 is slid to the right, the reciting key is pushed out again, and the lower locking side 7b enters the slit 9a of the passage 9 and is locked again.
[0243]
[Change recitation key settings]
After the reset plate 4 is slid and all the key pieces 3 are pushed up, when the newly selected key piece is pushed in and the set plate 6 is slid, the upper locking piece 7a of the new key piece becomes an axis of the key piece. At the same time as being pushed in, the lower locking piece 7b protrudes from the shaft of the key piece, and a new key piece is set as a recitation key piece. At the same time, the lower locking piece 7b of the original recitation key is pushed into the key piece shaft and the setting is cancelled.
[0255]
1 to 8, the key casing 2 and the openings 2 a, 8, 9, 10 of each of the plates 4, 5, 6 and the key piece 3 fitted thereto are arranged linearly, and each plate 4, The case where the sliding operation is performed in the linear direction is illustrated, but the present invention is not limited to this. For example, as shown in FIGS. 9 to 12, the key casing 2 and the plates 4, 5, 6 are connected to each other. It is also possible to arrange the mouths 2a, 8, 9, 10 and the key piece 3 in a circular shape, and to slide each of the plates 4, 5, 6 in a circular shape.
[0263]
【effect】
According to the present invention, it is possible to obtain a key device in which a user can arbitrarily set a recitation number and a recitation number by only mechanical means and can freely change it.
[0273]
The number of digits of the recitation number is not fixed, and you can set your own key number in any combination using any number of key pieces, so the selection range of the recitation number is significantly expanded and the number of digits is similar to the bank recitation number Since it is not restrained, you can obtain safety according to the purpose from simple recitation numbers to complex recitation numbers.
[028]
Since the key number can be freely changed, even if the number is known to others, setting the new number ensures the same security as replacing the key. Moreover, since the set number is a unique number that is unknown to the key manufacturer, the confidentiality is extremely high.
[0291]
Since it is composed of only a mechanical mechanism without using any electronic equipment, the manufacturing cost is low, it is not affected by water and temperature, and there is no inconvenience when using electronic parts.
[Brief description of the drawings]
1 is a front view of a key device according to an embodiment of the present invention. FIG. 2 is a top view of FIG. 1. FIG. 3 is an enlarged sectional view taken along line AA in FIG. FIG. 5 is a front view of the reset plate. FIG. 6 is a partially enlarged sectional view taken along the line BB in FIG. 5. FIG. 7 is a front view of the opening and closing plate. FIG. 10 is a front view of the reset plate of the embodiment of FIG. 9. FIG. 11 is a front view of the opening and closing plate of the embodiment of FIG. 9. FIG. 12 is a front view of the set plate of the embodiment of FIG.
DESCRIPTION OF SYMBOLS 1 ... Key apparatus 2 ... Key casing 2a ... Front plate 2b ... Through-hole 3 ... Key piece 3a ... Shaft 3b ... Engagement protrusion 4 ... Reset plate 5 ... Opening / closing plate 6 ... Set plate 7 ... Key type cam piece 7a ... Upper side Locking piece 7b ... Lower locking piece 8 ... Passage 8a ... Inclined cam surface 9 ... Passage 9a, 9b ... Slit 10 ... Passage 10a, 10b ... Taper cam edge 11 ... Projection edge 11 '... Openings 12, 13 ... Operation levers 14, 15 ... long holes 16 ... springs 17, 18 ... notches 19 ... long holes [reference number] PAS002-007

Claims (1)

A key casing having a plurality of openings through which the head of the key piece enters and exits the front plate of the hollow frame body:
Engagement protrusions are formed on the side surfaces of the shaft body, and a key-type cam piece having an upper locking piece and a lower locking piece having a predetermined shaft width that selectively protrudes outward is slid in the transverse direction of the shaft body. A plurality of key pieces that are fitted so that the head enters and exits at right angles from the key casing opening:
The key casing is supported so as to be slidable in the axial direction of the key casing, and forms a plurality of passages through which each key piece is slidably engageable. An inclined cam surface is formed on the edge wall thickness of the passage, and the inclined cam surface A reset plate adapted to be engaged with the engaging protrusion of the key piece by pushing the key piece to push the head of the key piece outward:
The key casing is supported so as to be slidable in the inner axial direction, and forms a plurality of passages through which the key pieces can be slidably engaged, and the protruding locking pieces of the key pieces are passed through the left and right sides of the passages. Opening and closing plate with slits:
Close to the opening and closing plate, is supported so as to be slidable in the axial direction of the casing, and forms a plurality of passages through which the shaft body and the locking piece of each key piece are slidably engageable. An inclined cam side that engages with the protruding locking piece of the key piece shaft body and pushes the locking piece back into the shaft body of the key piece, and the upper and lower sides of the key type cam piece. The depth width of the side locking piece is set to a dimension that faces the thickness of the superimposed set plate and reset plate, and the upper locking piece is set to the plate width of the set plate and reset plate at the position where the key piece is pushed. A key device characterized in that the lower locking piece is disposed so as to face the plate width of the set plate and the reset plate in a position facing each other and pulled back.

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