JP2022123661A - Camlock lock and delivery box - Google Patents

Abstract

A cam lock lock that can be locked without using a key and requires a key operation when unlocking.
SOLUTION: An outer cylinder 2 fixed to a door 22, an inner cylinder 3 rotatably accommodated in the outer cylinder 2, and a cylinder 4 rotated by operating a key 10 accommodated and inserted in the inner cylinder 3. , and a handle 5 for rotating the inner cylinder 3. The cam 7 receives the rotation of the inner cylinder 3 and engages/unlocks the closed object, unlocks the cam 7, and releases the key 10. A holding state in which locking to the main body 21 is continued in the removed state, a holding released state in which locking of the cam 7 to the main body 21 is released from the holding state, and a cam from the holding released state without using the key 10. 7 can be engaged with the main body 21 to form a locked state.
[Selection diagram] Fig. 3

Description

TECHNICAL FIELD The present invention relates to a cam-lock lock that locks a cam to an object to be closed and is in a locked state, and a delivery box equipped with this cam-lock lock.

The conventional cam lock lock, which is widely used as a locking means, is a mechanism that, when unlocked, releases the locking by the cam and allows the door to be opened, but it maintains the closed state even when the door is unlocked. There is a camlock lock with
For example, in the cam lock lock described in Patent Document 1, the inner cylinder that rotates by key operation can be slid back and forth, and even in the unlocked state, the lock on the door or the like is continued by the cam, and the inner cylinder is pushed in. The locking cam retreated and released the locking.

Japanese Utility Model Laid-Open No. 57-106850

Delivery boxes, which have become popular in recent years, have a structure in which they can be opened without a key so that the delivery company can put in the package, and once the package is put in, it can be locked without using a key. It is easy and it is preferable from a security point of view for residents who receive packages.
However, conventional cam-lock locks with the ability to remain closed without locking can be easily opened unless locked with a key.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a cam lock lock and a delivery box which can be locked without using a key and which requires a key operation for unlocking.

In order to solve the above-mentioned problems, the invention of claim 1 is a cam lock lock that is unlocked by operating an inserted key and can be unlocked by operating a handle to unlock a cam that is locked to a closed object. an outer cylinder fixed to a closing means for closing an object to be closed; an inner cylinder rotatably accommodated in the outer cylinder; a cylinder accommodated in the inner cylinder and rotated by an inserted key; The cam engages with the inner cylinder and engages/unlocks the object to be blocked by the rotation of the handle. With the lock released and the key removed, a holding state in which locking of the cam to the closed target is continued; a release state in which locking of the cam to the closed target is released from the holding state; It is characterized by being able to form three states including a locked state in which it is stopped and locked, and transitions between the three states by a predetermined turning operation of the handle.
According to this configuration, since the locked state can be obtained by operating the handle, no key is required for the locking operation. On the other hand, a key is required to release the locked state. Therefore, a third person who does not have a key can lock a locker or the like containing articles, thereby preventing theft.

The invention of claim 2 is a delivery box comprising a main body having a parcel storage space and a door for closing an opening of the main body for storing/retrieving parcels, wherein the cam lock lock of claim 1 is provided. is provided on the door, and the cam of the cam lock lock is engaged with the main body.
According to this configuration, even if the delivery company does not have a key, the parcel can be locked by operating the handle after the parcel has been accommodated, and the parcel can be prevented from being stolen.

According to the cam lock lock of the present invention, since the locking state can be shifted to by operating the handle, a key is not required for the locking operation. On the other hand, a key is required to release the locked state. Therefore, a third person who does not have a key can lock a locker or the like containing articles, thereby preventing theft.
In addition, the home delivery box equipped with this cam lock lock can be locked after the parcel has been accommodated even if the delivery company does not have a key, and the stored parcel can be prevented from being stolen.

1 is a perspective view showing an example of a cam lock lock according to the present invention; FIG. Figure 2 is a side view of the camlock lock of Figure 1; FIG. 2 is a vertical cross-sectional explanatory view of the cam lock lock of FIG. 1, showing a state in which a key is inserted; It is explanatory drawing of a cover member and a back member, (a) is the perspective view seen from the front side, (b) is the perspective view seen from the back side. It is a front view of the cam lock lock showing the change of state, (a) is the locked state, (b) is the state in which the key is inserted and rotated by a certain angle to release the lock while maintaining the engagement of the cam. , (c) is the state in which the handle is rotated to enable removal of the key from the state of (b), (d) is the state in which the key is removed from the state of (c), and (e) is the state of (d). It shows a state in which the handle is further rotated from the state and the engagement of the cam is released. Fig. 5(b) is a longitudinal cross-sectional explanatory view of the cam lock lock in the state of Fig. 5(b); It is front explanatory drawing of the cam lock lock which saw through the handle|steering-wheel, (a) is the locked state, (b) is the state which rotated the cylinder and unlocked. Fig. 5(c) is a vertical sectional explanatory view of the cam lock lock in the state of Fig. 5(c). It is front explanatory drawing of the cam lock lock which saw through the handle|steering-wheel, (a) is the state of FIG.4(c), (b) is the state of FIG.4(d). It is a longitudinal cross-sectional explanatory view of the cam lock lock in the state of FIG. 5(e). FIG. 5 is an explanatory diagram of a cross section taken along the line AA, and is an explanatory diagram of the deadbolt in the state of FIG. 5(e). It is a longitudinal cross-sectional explanatory view of the cam lock lock with the handle pushed in in the state of FIG. 5(e). Fig. 5(e) is an explanatory longitudinal cross-sectional view of the cam lock lock in a state where the handle is pushed in and rotated 180 degrees to return to the state shown in Fig. 4(a). A mechanism for stopping the rotation of the handle 5 at 90 degrees is shown, (a) shows a configuration for stopping clockwise rotation, and (b) shows a configuration for stopping counterclockwise rotation. It is a perspective view of a delivery box.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. 1 to 3 show an example of a cam lock lock according to the present invention, FIG. 1 being a perspective view, FIG. 2 being a side view, and FIG. Also, FIG. 15 shows an example of a delivery box to which this cam lock lock is applied.
As shown in FIG. 15, the delivery box 20 has a box-shaped main body 21 having a space for storing packages, and a door 22 closing the open front of the main body. ing.

The cam lock lock 1 is rotated by operating an outer cylinder 2 fixed to a door 22 to be mounted, an inner cylinder 3 rotatably received in the outer cylinder 2, and a key 10 received and inserted in the inner cylinder 3. A cylinder 4, a handle 5 connected to the inner cylinder 3 to rotate the inner cylinder 3, a tongue-like cam 7 connected to the inner cylinder 3 through a joint member 6 and engaged with a box to be closed, and an outer cylinder. 2 and provided around the cylinder 4 with a display portion 8a for displaying the state of the cam lock lock 1;

The cylinder 4 has a plurality of tumblers and constitutes a cylinder lock that can be rotated inside the inner cylinder 3 by inserting a dedicated key 10 . A key insertion portion 4a is provided in the center of the handle 5, which is the tip surface of the cylinder 4. As shown in FIG.

The handle 5 is a member to be manually operated, and is a substantially rectangular plate-like body having a key window 5a in the center for exposing the key insertion portion 4a of the cylinder lock. Further, a display window 5b for exposing the display of the cover member 8 for displaying the state of the cam lock lock 1 is provided to display the current state.
By inserting the key 10 into the key insertion portion 4a, all the tumblers provided in the cylinder 4 as shown in FIG. 4 rotations are possible. In this released state, the cam 7 can be unlocked/locked by rotating the handle 5 in a predetermined manner.

The joint member 6 is arranged to engage and interlock with the back of the inner cylinder 3 . The cam 7 is a fan-shaped plate and is connected to the joint member 6 by a screw 11 . This screwed portion is arranged on the central axis M of the cylinder 4 . 3 shows a cross section taken along the central axis M. As shown in FIG.

FIG. 4 shows the cover member 8 and the back member 12 located behind the cover member 8 . Both are disc-shaped, the cover member 8 is connected to the outer cylinder 2 and the back member 12 is connected to the handle 5 .
The cover member 8 has four indications on the front surface for indicating the state of the cam lock lock 1 . Specifically, "closed" and "acceptable" are displayed at two locations, and "open" is displayed.
The back member 12 is a member for sliding the inner cylinder 3 forward. The back member 12 is biased forward by a coil spring 14 (described later) arranged between the joint member 6 and the inner cylinder 3, and is arranged so as to come into close contact with the cover member 8 from behind.

The operation of the cam lock lock 1 constructed in this manner will be described below with reference to FIGS.
5A and 5B are front views of the cam lock lock 1 showing changes in state, in which (a) is the locked state, and (b) is the state where the cam 7 is kept engaged, and the key 10 is inserted to release the lock. (c) is a state in which the handle 5 is rotated to enable removal of the key 10 from the state of (b); and (d) is a state in which the key 10 is removed from the state of (c). State (e) shows a state in which the handle 5 is further rotated from the state (d) to unlock the cam 7 . 5(b) and 5(c) show the state in which the key 10 is inserted, but the key 10 is omitted.

When the key 10 is inserted in the locked state shown in FIG. 5(a), the lock is released and the cylinder 4 can be rotated. Rotation of the cylinder 4 disengages the deadbolt 9 from the outer cylinder 2 and allows the handle 5 and the inner cylinder 3 to rotate.
Specifically, when the key 10 is rotated clockwise, the deadbolt 9 is retracted due to the action of an engagement portion (not shown) provided with the deadbolt 9 provided at the rear end of the cylinder 4, and the deadbolt 9 is retracted. and the lock groove 2a of the outer cylinder 2 are released.

FIG. 6 shows a longitudinal section of the cam lock lock 1 in the state of FIG. 5(b), showing a state in which the deadbolt 9 is retracted. The deadbolt 9 is biased by a spring 9a, and in the locked state it is inserted into the lock groove 2a of the outer cylinder 2 as shown in FIG. From this state, the deadbolt 9 is pushed down and unlocked by rotating the cylinder 4 by operating the inserted key 10 .
In FIG. 5(a) in the locked state and in FIG. 5(b) in the unlocked state, the display window 5b of the handle 5 displays the characters "closed". A lock groove 2a is formed in the inner upper portion of the outer cylinder 2, and is fitted when the dead bolt 9 is in an upward state.

However, when the cylinder 4 is rotated by 70 degrees, the stepped portions S1 (shown in FIG. 7) provided on both the cylinder 4 and the inner cylinder 3 come into contact with each other to prevent further rotation. This state is the state of FIG. 5(b).
FIG. 7 is an explanatory front view of the cam lock lock 1 with the handle 5 seen through, showing the stepped portion S1. FIG. 7(a) shows a locked state, and FIG. 7(b) shows a state where the cylinder 4 is rotated to release the lock.

By rotating the cylinder 4 by 70 degrees in this manner, the lock is released and the handle 5 can be rotated. After that, the following operations are performed in order to enable the opening operation of the door 22 even if the key 10 is pulled out.
The handle 5 is rotated 90 degrees clockwise to the state shown in FIG. 5(c). By this operation, the back member 12 connected to the handle 5 rotates, and the contact portion of the G1 surface of the back member 12 shown in FIG. Move to
As a result, the back member 12 moves forward by the amount of the step between the F1 surface and the F2 surface, and the handle 5 connected to the back member 12 also protrudes forward. FIG. 8 shows this projected state. In addition, FIG. 8 is a longitudinal cross-sectional explanatory view of the state of FIG. 5(c).

This protruding operation is achieved by biasing a coil spring 14 (shown in FIG. 8) arranged between the joint member 6 and the inner cylinder 3 . Due to the protrusion of the handle 5, the end of the G1 surface of the back member 12 abuts against the side surface of the F1 surface and cannot be rotated, so that it cannot be rotated counterclockwise to return to the "closed" state.
With the handle 5 protruding, the key 10 can be removed by rotating it 70 degrees counterclockwise. The state in which the key 10 is pulled out in this way is the state in FIG. 5(d), and together with the state in FIG.

FIG. 9 is an explanatory front view of the cam lock lock 1 with the handle 5 seen through, showing the relationship between the inner cylinder 3 and the cylinder 4 in the held state. 9(a) shows the state before the key 10 of FIG. 5(c) is pulled out, and FIG. 9(b) shows the state of FIG. 5(d).
By rotating the key 10 counterclockwise by 70 degrees, the stepped portions S2 of the cylinder 4 and the inner cylinder 3 come into contact with each other as shown in FIG. 9(b). The angle at which the key 10 abuts and cannot be rotated is the angle at which the mutual engagement is released and the key 10 can be extracted.
In this state in which the lock is released and the cam 7 is engaged with the main body 21, the key 10 is pulled out, which is the state in which the delivery agent without the key 10 can receive the package. As shown in d), the display window displays "Receivable".

When the handle 5 is rotated 90 degrees clockwise from this ready-to-receive state, as shown in FIG. be able to. At this time, "open" is displayed in the display window 5b.
10 and 11 show the state in which this "open" is displayed, FIG. 10 being a vertical cross-sectional view of the cam lock lock 1, and FIG. 11 being a cross-sectional view taken along the line AA. As shown in FIGS. 10 and 11, in this state, the deadbolt 9 faces downward and does not fit into the lock groove 2a of the outer cylinder 2. As shown in FIGS. That is, it does not enter the locked state.

14A and 14B show a mechanism for stopping the rotation of the handle 5 at 90 degrees, FIG. 14A showing a structure for stopping clockwise rotation, and FIG. As shown in FIG. 14, a ring-shaped detent 15 is arranged between the cam 7 and the outer cylinder 2 to rotate in conjunction with the cam 7 (in conjunction with the inner cylinder 3). The rotation stopper 15 is provided with a projection 15a that engages with the outer cylinder 2 at a predetermined angle, and the rotation of the inner cylinder 3 is restricted by the action of this projection 15a. That is, the rotation of the handle 5 is restricted.

After that, if the handle 5 is pushed in and rotated counterclockwise by 180 degrees, the state shown in FIG. 5(a) is obtained. That is, the locked state is established, and the handle 5 does not rotate unless the key 10 is inserted.
When the handle 5 is pushed in and rotated counterclockwise by 180 degrees, the projection 15a of the rotation stop 15 shown in FIG.
12 and 13 are explanatory diagrams of this, FIG. 12 shows a state in which the handle 5 is pushed in from the holding released state of FIG. 10, and FIG. 13 shows a state in which it is further rotated by 180 degrees.

By pushing the handle 5, the G1 surface of the back member 12 is separated from the F2 surface of the cover member 8, and can be rotated 180 degrees counterclockwise without contacting the F1 surface. At this time, since the deadbolt 9, the inner cylinder 3, and the cylinder 4 are integrated, they rotate together. This rotation causes the deadbolt 9 to face upward where the lock groove 2a is located and fit into the lock groove 2a.
Then, as shown in FIG. 13, by rotating the handle 5 by 180 degrees, the dead bolt 9 faces upward with the lock groove 2a and is engaged with the outer cylinder 2 by being fitted into the lock groove 2a. That is, it becomes a locked state.

In this manner, since the locked state can be obtained by operating the handle 5, a key is not required for the locking operation. On the other hand, the key 10 is required to release the locked state. Therefore, a third person who does not have the key 10 can lock the box containing the article, thereby preventing theft.

The delivery box 20 equipped with this cam lock lock 1 is operated as follows.
When a parcel is stored in the home delivery box 20, the recipient sets the cam lock lock 1 to the holding state shown in FIG. 5(d). 5(e), the door 22 is opened, and the package is accommodated in the housing portion of the main body 21, the home delivery company closes the door 22 and pushes the handle 5. Rotate 180 degrees while pressing. Thus, the cam lock lock 1 is in the locked state (the state shown in FIG. 5(a)).

When the recipient takes out the package, the key 10 is used to shift from the state shown in FIG. 5(a) to the state shown in FIG. 5(e) to take out the package. After that, the state shown in FIG. 5(d) or the like may be set as necessary.
The operation of opening and locking the door 22 by the home delivery company can be performed by displaying the operation procedure at an easily visible position such as the door 22, so that even a first-time home delivery company who does not know the operation can operate. .

In this manner, the home delivery company can lock the package by operating the handle 5 after receiving the package without having the key 10, thereby preventing the stored package from being stolen.

In the above embodiment, the case where the cam lock lock 1 is applied to the delivery box 20 has been described, but it can be widely used as a lock that can be locked without using the key 10 .
Moreover, although the inner cylinder 3 and the handle 5 are formed separately, they may be integrally formed.
Furthermore, as shown in FIG. 14(b), by reversing the directions of the cam 7 and the rotation stop 15, the left-right orientation can be changed.

1 Cam lock lock 2 Outer cylinder 3 Inner cylinder 4 Cylinder 5 Handle 7 Cam 20 Delivery box 21 Body (to be blocked) 22 a door (blocking means);

Claims (2)

A cam lock lock that is unlocked by operating an inserted key and capable of unlocking a cam that is locked to an object to be closed by operating a handle,
an outer cylinder fixed to the closing means for closing the object to be closed; an inner cylinder rotatably accommodated in the outer cylinder; a cylinder accommodated in the inner cylinder and rotated by operation of a key inserted; a handle for rotating the inner cylinder,
The cam engages with the inner cylinder and locks/unlocks the object to be closed by rotation of the handle,
a holding state in which locking to the blockage target is continued in a state where the lock is released and the key is extracted;
a holding release state in which the locking of the cam to the closed object is released from the holding state;
It is possible to form three states from the holding release state to a locked state in which the cam is engaged with the object to be closed and locked without using a key,
A cam lock lock characterized by transitioning between the three states by a predetermined rotational operation of the handle. A home delivery box comprising a main body having a parcel storage space and a door closing an opening of the main body for storing/retrieving parcels,
2. A home delivery box, wherein the door is provided with the cam lock lock according to claim 1, and the cam of the cam lock lock is engaged with the main body.

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