JP2003176653A - Switching device of electric lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a switching device of an electric lock capable of freely switching modes of inside and outside operating members by means of one electric lock. <P>SOLUTION: The switching device of the electric lock includes an inside driving cam pivoting on a lock box by the inside operating member, an engaging member pulling back a locking piece pivoted so as to engage with the inside driving cam and engaged with a strike, an operating member locking means provided to a guide section so as to engage with the driving cam in a detachable manner, an inside engaging arm pivoted so as to enable a locking state of the locking means to switch to an unlocking state, an inside operating member mode switching means pivoted so as to engage with the engaging arm and an operation mode switching means having a driving piece pivoted so as to enable the inside engaging arm to rotate on an operating lever of a driving source and switching the operation mode of the electric lock to a locking in the case power is disconnected or a locking in the case power is connected by moving a setting position of the driving source. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric lock switching device. In particular, the present invention relates to the operation mode of the electric lock (switching to a locking type when not energized or a locking type when energized)
And an electric lock switching device for switching the inside and outside of the electric lock (for example, freeing or unfreezing the turning operation of the lever handle).

[0002]

2. Description of the Related Art Conventionally, an electric lock is attached to a door of a building. Depending on the purpose of the building such as residential, commercial, and welfare facilities, it is a non-energized lock type or an energized lock type. Either lock is selected and attached. The electric lock may be a non-energized lock type or an energized lock type, for example, when it is attached to a door of each room of a hotel,
Anti-panic function (The door can be opened only by operating the inner operating members without operating the thumb turn.)
Since it is desirable to have an electric lock, an electric lock that can open the door is often attached only by turning the lever handle without operating the thumb turn from inside the room. on the other hand,
When installing on the door of a building such as a nursing home or public facilities, it is possible to open the door only by operating the outside operation member without operating the cylinder key from the outside of the room in consideration of disaster prevention. desirable. Therefore, such type of electric lock is attached. As described above, there are various types of electric locks at present, and the electric locks are selected according to the use of the building.

By the way, when a door lock of a building is fitted with a non-energized lock type, it is sometimes desired to change the operation mode of the electric lock to the energized lock type. There are also cases where it is desired to change the mode of the inside / outside operation member of the electric lock in response to a change in the purpose of use of the building. In such a case, the conventional electric lock has a problem that the electric lock once attached to the door must be replaced with an electric lock of a desired type. Therefore,
There is a demand for an electric lock switching device capable of freely switching the operating mode and the mode of the operating member inside and outside with one electric lock.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the problems of the above-described conventional embodiments, and a first object of the present invention is to:
An object of the present invention is to provide an electric lock switching device capable of freely switching the operation mode and the mode of the operation member inside and outside with one electric lock. A second object is to simply switch the operation mode of the electric lock and / or the mode of the operating member inside and outside by simply removing the front plate from the lock box. The third purpose is to rationally combine the operating members,
The switch is to be graceful and graceful.

[0005]

According to another aspect of the present invention, there is provided a switching device for an electric lock, which is rotatably supported by a lock box so as to engage an inner drive cam which is rotated by an inner operating member. An interlocking member for pulling back the locking piece engaged with the strike, a locking means for an operating member provided on the guide portion so as to engage and disengage with the drive cam, and a locked state of the locking means is switched to an unlocked state. An inner engagement arm rotatably supported, an inner operating member mode switching means rotatably supported to engage the engagement arm, and rotating the inner engagement arm. Has a driving piece pivotally supported so that it can be moved to the operating rod of the driving source, and
It is characterized by further comprising an operation mode switching means for switching the operating mode of the electric lock between the non-energized locking mode and the energized locking mode by moving the position of the drive source.

The electric lock switching device of the present invention includes an inner and outer drive cams which are respectively rotated by inner and outer operating members, and a shaft which is pivotally supported so as to be engaged with the drive cams.
Also, an interlocking member for pulling back the locking piece engaged with the strike, an operating member locking means provided on the guide portion so as to be engaged and disengaged with the drive cam, and a locked state of each of these locking means is an unlocked state. Inner and outer engagement arms that are pivotally supported so that they can be switched to and from, inner and outer operation member mode switching means that are pivotally supported so as to engage with these engagement arms, and the inner and outer engagement arms. Has a drive piece pivotally supported so that it can be rotated, and the operation mode of the electric source is moved by moving the disposition position of the drive source to lock the electric lock when not energized, or And an operation mode switching means for switching to locking when energized.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment will be described with reference to FIGS. FIG. 1 shows the appearance of the electric lock 1. FIG. 2 is an explanatory view of the electric lock 1 housed in the lock box cavity formed at the free side end of the door 2 with a part of the front plate cut away and viewed from the front plate side. First, FIG. 1 and FIG.
The environmental member of the present invention will be described with reference to FIG. The lock box 3 of the electric lock 1 generally comprises a case body 3a having one side opening and a case lid or 3b, and the case body 3a incorporates each member described later. 4 is a front plate, 5 is locking pieces such as dead bolts and latch bolts, 6 is an outer operating member (knob, lever handle), 7 is an inner operating member (knob, lever handle), and 8 is operated by key operation. A cylinder to unlock, 9 is a thumb turn. Next, the main part of the present invention will be described with reference to FIGS. First, the lock of the present invention is premised to be the electric lock 1. Generally, an "electric lock" generally means a lock that electrically locks and unlocks a locking piece.

Therefore, in the electric lock 1 of the present invention as well, although not shown in the drawing, a drive circuit (for example, a micromotor) electrically installed in the lock box 3 is electrically activated by a control circuit from a remote place, and the drive source Each member (gear, lock piece, etc.) in the lock box 3 can be actuated by the driving force to release the locked state of the lock piece 10 for the locking piece 5. It is also possible to rotate the inner and outer operating members after operating the thumb turn and the cylinder.

Hereinafter, description will be given centering on specific items of the electric lock switching device X of the present invention, and illustrations and descriptions of additional constituent elements will be omitted. Further, the lock box 3, the locking piece 5, the interlocking member 30, etc. are not based on the designed shape and dimensions, and are simplified for explaining the technical idea.

First, the lock box 3 is fixed to the door 2 via a back plate 11 fixedly joined to the back surface of the front plate 4 and a fixing tool. Inside the lock box 3, each member constituting the electric lock switching device X is installed. An opening 11a facing the free ends of a plurality of lever-shaped switching means, which will be described later, is formed in the lower portion of the back plate 11.

Next, a dead bolt 5 as an example of a locking piece
Moves forward and backward freely with respect to the front plate 4. The dead bolt 5 is, as is well known, a strike 13 on the door frame 12 side.
Disengage with. When the dead bolt 5 moves back and forth in a horizontal state, it is guided by a horizontal guide portion such as a horizontal cutout portion or a horizontal groove formed in the lock box 3. The dead bolt 5 has a tip portion side 5a protruding and retracting from the window 14 of the front plate 4 and a tip portion side 5a.
The rear end portion side 5b is continuously distinguished from the rear end portion 5b. The lock piece 10 is pivotally supported (shaft 15) on the lock box 3 at the rear end portion 5b.
Disengages. The dead bolt 5 retracts against the spring force of a dead spring (not shown) mounted inside the lock box 3.

Next, the main members constituting the electric lock switching device X will be described. In the embodiment of the present invention, regarding the inner and outer members symmetrically arranged in the lock box 3, members having the same name will appear. Therefore, regarding parts drawings, regardless of their shapes, for convenience of explanation, only parts of one member are shown, and illustration and description of the other member are omitted (the same functional parts are designated by the same reference numerals). ).

Reference numeral 20 denotes an inner drive cam which is rotated by a rotating operation of the inner operation member 7. On the other hand, reference numeral 21 is an outer drive cam that rotates by operating the outer operation member 6. Therefore, the switching device X is provided with inner and outer drive cams 20 and 21 which are respectively rotated by inner and outer operation members. Figure 4
FIG. 4 is a front view showing an example of the inner drive cam 20. Reference numeral 23 shown in FIG. 3 is an operation shaft for the inner operation member 7 here. Therefore, 24 is a shaft hole for the operation shaft, 25 is an annular connecting cylinder into which the stepped operation shaft 23 is fitted, and 26 is a wide first (thumb joint shape) first cam portion protruding radially from the connecting cylinder. Is. Reference numeral 27 denotes a second cam portion having a narrow width (finger joint shape) protruding from the connecting cylinder so as to form the engagement notch 28, and the second cam portion 27 faces one side of the first cam portion 26.
Reference numeral 29 denotes a pressing portion that projects from the connecting cylinder so that the right index finger faces upward. The pressing portion 29 is in sliding contact with the side edge of the central portion of the long plate-shaped interlocking member (retractor) 30.

With reference to FIG. 3, the outer drive cam 21 is coaxial with the operation shaft 23 with the engagement notch 28 facing the back side of the inner drive cam 21 in the “10 o'clock direction”. It is located above. Then, when the inner operation member 7 is rotated, the inner drive cam 20 on the front side independently rotates, while
When the outer operation member 6 is rotated, the outer drive cam 21 on the back side is supported by the shaft so as to rotate independently.

The interlocking member 30 is used for the inner and outer drive cams 2.
The locking piece 5 pivotally supported by the lock box 3 so as to engage with 0 and 21 and pushed by the drive cam to engage with the strike 13 on the door frame side is pulled back. Thus, the lower end of the interlocking member 30 is pivotally supported by the horizontal shaft 31 that is horizontally mounted on the lock box 3, while the upper end 30a thereof is directly or connected to the rear end 5b of the dead bolt 5 by the connecting rod 16. It is indirectly connected via.

Reference numerals 35 and 36 denote lock means for the inner and outer operation members (drive cams) slidably provided on the lock box 3 so as to be engaged with and disengaged from the inner and outer drive cams 20 and 21, respectively. Here, reference numeral 35 is a locking means for the inner operating member, and reference numeral 36 is a locking means for the outer operating member. These upper and lower symmetrical lock means 35, 36 are formed in a substantially rectangular shape, and as shown in FIG. 3, a pair of upper and lower guide portions (openings, grooves, etc.) 37 formed in the lock box 3 in an oblique direction. Each of them is slidably fitted into 37.

FIG. 5 is a plan view of the locking means 35 for the inner operating member located below. So 38 is 3 on one side
It is a notch formed in the required amount from the central portion of 5a toward the central portion of the other side 35b. Reference numeral 39 is a cross-shaped engagement pin that divides the notch portion 38 into two. In addition, the guide portions 37, 37
A part (right end in FIG. 3) of the drive cam is located so as to overlap with the engagement notch 28 of the inner and outer drive cams when viewed from the front.

Reference numerals 41 and 42 denote internal and external locking means 35 and 36.
The inner and outer engagement arms are pivotally supported via the central shaft 43 so that the locked state of each can be switched to the unlocked state. Here, reference numeral 41 is an inner engagement arm, and symmetrically, it is axially supported by the lock box 3 and is an outer engagement arm 42.

FIG. 6 is an explanatory view from the front of the inner engagement arm 41, the lock means 35 and the like. Referring to FIG. 6 as a reference, 45 is a bearing portion fitted to the central shaft 43, and 46.
Is a first engaging arm extending from the bearing portion to the lower right, and 47 is a second engaging arm extending from the bearing portion 46 to the left.

Therefore, the first engaging arm 46 has a pinch-shaped engaging finger 46a which engages with the engaging pin 39 of the inner operating member locking means 35 at the tip, and the engaging finger 46a and the bearing. And a restriction frame portion 46b continuously provided between the portion 46 and
A rotation restricting pin 48 implanted in the lock box 3 is inserted in the restricting frame portion 46b. On the other hand, the second engaging arm 47
Is composed of a hook-shaped receiving portion 47a and a tip receiving portion 47b which is connected to the receiving portion 47a in the horizontal direction. A spring member 50 is wound around the central shaft 43, and the spring member 5
The lower end portion 50a of 0 is in pressure contact with the regulation frame portion 46b, while the other end portion 50b is in the regulation frame portion 46b of the outer engagement arm 42.
Is pressed against.

Therefore, the inner and outer engagement arms 41, 42
Is urged by the spring force of one spring member 50 so that the corresponding inner and outer plate-shaped locking means 35 and 36 engage with the engagement notches 28 of the inner and outer drive cams 20 and 21, respectively.

Numerals 51 and 52 are switching means for inner and outer operation member modes pivotally supported on the front plate side so as to engage with the tip receiving portions 47b of the second engagement arms 47 of the inner and outer engagement arms 41 and 42, respectively. is there. Here, reference numeral 51 is an inner switching means, and reference numeral 52 is an outer switching means. The inner and outer switching means 51, 52 are symmetrically supported by a single pivot (coaxial) 53 provided horizontally on the lock box 3, and a horizontal free end is directed to the front plate side.

FIG. 7 is a front view of the lever-like inside switching means 51. Switching means 5 on the inner side with reference to FIG.
1, 54 is a bearing portion, 55 is a free end portion, 5
Reference numeral 6 is a fingertip-shaped drive unit. The drive portion 56 is in contact with the outer wall surface of the tip end receiving portion 47b of the inner engagement arm 41 described above.

Reference numeral 60 is a drive source movably provided in the lock box 3, and a solenoid is used in this embodiment. The solenoid 60 is arranged in a corner of the lock box 3 so as to be horizontally movable, and a rod-shaped drive piece 63 whose central portion is axially supported (shaft 62) by the lock box 3 is connected to a projecting portion 61 of the operating rod. ing.
The upper end portion 63a of the drive piece 63 has inner and outer engagement arms 41, 4
The two hook-shaped receiving portions 47a are engaged with each other. Further, the solenoid 60 has a plurality of protrusions 64, 64 as engaged parts on its upper wall.

Reference numeral 65 is a lever-like operation mode switching means which is pivotally supported by the pivot shaft 53. As shown in FIG. 8, the operation mode switching means 65 includes a bearing 66 and a free end 67 extending from the bearing 66 toward the front side.
And a small engaging projection 68 which is provided on the bearing 66 with a predetermined angle with respect to the free end 67 and which is selectively engaged with the plurality of projections 64 of the solenoid 60. . When the operation mode switching means 65 is operated, the position of the solenoid 60 is moved horizontally, whereby the operation mode of the electric lock can be switched between the non-energized lock and the energized lock.

In the above structure, switching of the operation mode of the electric lock (switching between the non-energized locking type and the energized locking type) and the operation member mode inside and outside the electric lock (for example, rotation of the lever handle). Free movement or fixed locking). First, FIG. 9 shows an electric lock 1 in a lock type when not energized and in a lock mode of the inner and outer operation members. In this electric lock 1, the operating rod 61 extends when electricity is not flowing through the solenoid 60 (when the solenoid is not energized), while the operating rod 61 contracts when energized. This type of electric lock 1 is generally used at a common entrance of a condominium or a doorway of a building.

The operating state of the electric lock 1 will be briefly described with reference to FIG. First, when the power is off, the solenoid 60
The operating rod 61 is extended. At this time, the drive piece 63 stands up in a substantially vertical state, and the upper end portion 63a thereof has an inner and outer engagement arm 4a.
1, 42 are engaged with the hook-shaped receiving portions 47a, respectively. Since the engagement fingers 46a of the inner and outer engagement arms 41 and 42 are close to the inner and outer drive cams 20 and 21, the inner and outer operation member locking means 35 and 36 are arranged in the inner and outer drive cams 20 and 21, respectively.
21 and the engaging notches 28 respectively. The free ends 55 of the inner and outer operation member mode switching means 51, 52 are substantially horizontal with respect to the pivot 53. At this time, the inner and outer engagement arms 41 and 42 are completely the same as when they are not energized. Therefore, the inner and outer operation member locking means 35 and 36 are inserted into the engagement notches 28 of the inner and outer drive cams 20 and 21, respectively.

Therefore, when the electric lock 1 is in the non-energized state,
Unless the lock of the inner operating member locking means 35 is released through some sort of lock releasing means, for example, the thumb turn 9 or a member interlocking with the thumb turn, the inner operating member 7
Can't turn. This point outside operation member is also the same, and is locked unless the cylinder is rotated.

When the electric lock 1 is energized, the operation is reversed, and the operating rod 61 contracts. At this time, the driving piece 63 is the shaft 6
It rotates clockwise about 2 as a fulcrum and becomes tilted. As a result, the upper end portion 63a moves away from the hook-shaped receiving portion 47a of the inner and outer engaging arms 41, 42 and approaches the bearing portion 45. On the other hand, the engagement fingers 46 a of the inner and outer engagement arms 41 and 42 are the inner and outer drive cams 2
Since they are separated from 0 and 21, the inner and outer operation member locking means 35 and 36 are engaged with the engaging notch 2 of the inner and outer drive cams 20 and 21, respectively.
Leave from 8. Therefore, the blocked (locked) states of the inner and outer operation members 7 and 6 are simultaneously canceled.

In FIG. 10, the operating mode is switched from the "non-energized locking type electric lock 1" to the "energized locking type electric lock 1" by slightly moving the position of the solenoid to the right. FIG. FIG. 11 is a schematic explanatory diagram when the operation mode is switched. In this case, the inside / outside switching means 51, 52 are in the same state, and the locking mode of the inside / outside operation member is the same as in FIG. It simply changed the operating mode of the electric lock.

When changing the operation mode,
The front plate 4 of the lock box 3 is removed, and the free end portion 67 of the operation mode switching means 65 is switched downward from the opening 11a of the back plate 11 by using a not-shown doila bar or the like. Then, the solenoid 60 is pushed by the small engagement protrusion 68 of the operation mode switching means 65 and slides to a predetermined position. The operation mode is duplicated and therefore omitted.

12 and 13 show the inner switching means 51 when the mode of the electric lock is "non-energized locking type electric lock 1" or "energized locking type electric lock 1". It is an explanation when only switching is performed. Whether it is a lock type when de-energized,
Alternatively, in the case of a lock type when energized, as described above, the front plate 4 of the lock box 3 is removed, and the inside switching means 5 is used from the opening 11a of the back plate 11 by utilizing a not-shown doila bar or the like.
When the free end 55 of 1 is switched downward, the switching means 5
The second engaging arm 47 of the inner engaging arm 41 is lifted upward by the first driving unit 56.

Therefore, the inner engagement arm 41 rotates clockwise about the central shaft 43 as a fulcrum to a predetermined position. As a result, the inner operating member locking means 35 is disengaged from the engaging notch 28 of the inner drive cam 20 by the first engaging arm 46 of the inner engaging arm 41. Therefore, the blocked (locked) state of the inner operating member 7 is eliminated. In this case, the outer operating member 6 is still locked by the outer operating member locking means 36.

14 and 15 show the outer switching means 52 when the mode of the electric lock is "non-energized locking type electric lock 1" or "energized locking type electric lock 1". It is an explanation when only switching is performed. As described above, regardless of whether it is the lock type when not energized or the lock type when energized, the front plate 4 of the lock box 3 is removed, and the outside is switched from the opening 11a of the back plate 11 using a not-shown doila bar or the like. When the free end 55 of the means 52 is switched upward, the drive portion 56 of the switching means 52 pushes down the second engagement arm 47 of the outer engagement arm 42.

Therefore, the outer engagement arm 42 rotates counterclockwise about the central shaft 43 as a fulcrum to a predetermined position. As a result, by the first engaging arm 46 of the outer engaging arm 42, the outer operating member locking means 36 is disengaged from the engaging notch 28 of the outer drive cam 21.

Therefore, the blocking state of the outer operating member 6 is eliminated. In this case, the inner operating member 7 is still locked by the inner and outer operating member locking means 35, which is completely opposite to the case of FIGS. 12 and 13. In this way, by switching the inner and outer operation member mode switching means to the lower or upper side, the inner and outer operation members 6 and 7 are switched.
Can be turned immediately.

[0037]

EXAMPLE FIG. 16 shows a second example of the present invention. In the description of the second embodiment, the same or similar parts (having the same functions) as those of the first embodiment will be denoted by the same or similar reference numerals, and redundant description will be omitted.

The second embodiment differs from the first embodiment in the operation mode switching means 65A. That is, the operation mode switching means 65 of the first embodiment is coaxially supported by one shaft 53 which pivotally supports the switching means for the inner and outer operation member modes, and the front plate 4 is removed from the lock box 3. It is formed like a lever so that it can be switched. On the other hand, the operation mode switching means 6 of the second embodiment
Reference numeral 5A denotes a turning screw provided horizontally on the back plate 11A of the lock box 3A, and this turning screw 65A is a driving source 60A.
The side wall 6 of the drive source so that the
It is screwed to 0a. The rotary screw rod 65A has a groove in the head portion 70 for engaging a driver (not shown).

Even with such a construction, the operation mode and / or the electric lock can be obtained by simply removing the front plate 4 from the lock box 3A.
Alternatively, it is possible to achieve the second object of the present invention that the modes of the inner and outer operation members can be easily switched.

[0040]

As is clear from the above description, the present invention has the following effects. (1) It is possible to provide an electric lock switching device capable of freely switching the operation mode and the mode of the operation member inside and outside with one electric lock. (2) By simply removing the front plate from the lock box, it is possible to easily switch the operating mode of the electric lock and / or the mode of the internal and external operating members. (3) Reasonably combining the operating members to make the switching suitable. You can do it.

[Brief description of drawings]

1 to 15 are explanatory views showing a first embodiment of the present invention.
FIG. 16 is an explanatory view showing the second embodiment of the present invention.

FIG. 1 is a perspective view showing the appearance of an electric lock 1.

FIG. 2 is a schematic explanatory diagram in which a part of the front plate is cut out and viewed from the front plate side.

FIG. 3 is an explanatory view showing an internal structure of a main part (this is referred to as a front for convenience).

FIG. 4 is a front view of a main part (inner drive cam).

FIG. 5 is a plan view of a main part (inner locking means).

FIG. 6 is a front view of a main part (inner engagement arm).

FIG. 7 is a front view of a main part (inner switching unit).

FIG. 8 is a front view of a main part (operation mode switching means).

FIG. 9 is a schematic explanatory view showing an operation mode of the electric lock when the lock type is set when the power is not supplied and the inside / outside operation member is locked.

FIG. 10 is an explanatory view of a case where the operation mode is switched from the non-energized locking type electric lock to the energized locking type electric lock.

FIG. 11 is a schematic explanatory view when the operation mode is switched in FIGS. 9 and 10.

FIG. 12 is an explanatory diagram when only the inner switching unit is switched in the case where the mode of the electric lock is “non-energized locking type electric lock” or “energized locking type electric lock”.

FIG. 13 is a schematic explanatory diagram when only the inner switching unit is switched in FIG. 12;

FIG. 14 is an explanatory diagram when only the outer switching means is switched when the mode of the electric lock is “non-energized locking type electric lock” or “energized locking type electric lock”.

FIG. 15 is a schematic explanatory view when only the outer switching means is switched in FIG.

FIG. 16 is an explanatory diagram showing a second embodiment of the present invention.

[Explanation of symbols]

X ... Switching device, 1 ... Electric lock, 2 ... Door, 3, 3A ... Lock box, 3a ... Case, 3b ... Case lid, 4 ... Front plate,
5 ... Locking piece, 6 ... Outer operation member, 7 ... Inner operation member, 8 ... Cylinder, 9 ... Thumb turn, 10 ... Lock piece, 11, 11A ... Back plate, 12 ... Door frame, 13 ... Strike, 20 ... Inner drive cam, 21 ... Outer drive cam, 23 ...
Operation shaft, 24 ... Shaft hole, 25 ... Connection cylinder, 26 ... First cam portion, 27 ... Second cam portion, 28 ... Engagement notch, 29 ... Pressing portion, 30 ... Interlocking member, 31 ... Horizontal axis, 35 ... Locking means for inner operating member, 36 ... Locking means for outer operating member,
37 ... Guide part, 38 ... Notch part, 41 ... Inner engaging arm, 42 ... Outer engaging arm, 43 ... Central shaft, 45 ... Bearing part, 46 ... First engaging arm, 47 ... Second engaging Arms, 48 ...
Rotation restriction pin, 50 ... Spring member, 51 ... Inner switching means, 52 ... Outer switching means, 53 ... Axis, 54 ..., 5
5 ... Free end part, 56 ... Drive part, 60 ... Drive source, 60a ...
Side wall, 61 ... Projection part, 62 ... Shaft, 63 ... Driving piece, 64 ...
Protrusions, 65, 65A ... Operating mode switching means, 66 ... Bearing portion, 67 ... Free end portion, 70 ... Head portion.

Claims (7)

[Claims] 1. A lock box includes an inner drive cam that is rotated by an inner operation member, and an interlocking member that is pivotally supported so as to engage with the inner drive cam and that pulls back a locking piece engaged in a strike. An operating member locking means provided on the guide portion so as to be disengaged from the drive cam, and an inner engagement arm pivotally supported so that the locked state of the locking means can be switched to an unlocked state. An operating member mode switching means that is axially supported so as to engage with the engagement arm, and a drive piece that is axially supported so that the inner engagement arm can be rotated. A switching device for an electric lock, which is provided on the operating rod, and which has an operation mode switching means for switching the operating mode of the electric lock between a non-energized locking mode and an energized locking mode by moving the position of the drive source. . 2. The free end portion of the lever-shaped switching means according to claim 1, wherein the switching means for the inner operating member mode can be switched by removing the front plate of the lock box. An electric lock switching device characterized by being pivotally supported so as to orient the front plate. 3. An inner and outer drive cam, which is respectively rotated by inner and outer operation members, and an interlocking member which is pivotally supported to engage with these drive cams and which pulls back the locking pieces engaged with the strike in the lock box. And an operating member locking means provided on the guide portion so as to be engaged with and disengaged from the drive cam, and an inner and outer shafts pivotally supported so that the locked states of these locking means can be switched to unlocked states. Engaging arms, inner and outer operating member mode switching means pivotally supported so as to engage with the engaging arms, and the inner and outer engaging arms are pivotally supported so as to be rotatable. An operating mode switching hand that has a drive piece on the operating rod of the drive source and that moves the position of the drive source to switch the operating mode of the electric lock between non-energized locking and energized locking. An electric lock switching device including a step. 4. The electric lock switching device according to claim 3, wherein the drive source is one solenoid, and the drive source is moved by rotating the operation mode switching means. 5. The electric lock switching device according to claim 3, wherein the switching means for the inner and outer operation member modes and the operation mode switching means are pivotally supported on one shaft. 6. The electric lock switching device according to claim 3, wherein the operation mode switching means is formed in a lever shape so that the front plate can be removed for switching. 7. The operation mode switching means according to claim 3, wherein the operation mode switching means is a rotary screw provided in a horizontal state on the back plate of the lock box, and the rotary screw can horizontally move the drive source. An electric lock switching device characterized by being screwed onto a side wall of a drive source so as to be capable.