JPH0218213Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bag lock, such as a lock for a suitcase, a travel bag, etc.

Conventionally, this bag lock has various structures, and a typical one is shown in FIG. 10.

To explain the device shown in FIG. 10, a rotatable operation plate 9 is provided on the upper surface of the housing 1, and the rotation of this operation plate 9 is changed to the forward and backward movement of the lock piece 14 via a toggle link 15. In the forward position, the lock piece 14 engages with a hook B inserted into the housing 1 from the side, and in the retracted position, the lock piece 14 engages with the hook B, and the lock piece 14 is adapted to be detached from the hook B in the retracted position. When the tip 9 is rotated and the tip thereof is raised, the lock piece 14 is retracted via the toggle link 15, and the lock piece 14 is disengaged from the hook B to open the lock.

In this case, when the operating section of the operating panel 9 is pushed down slightly and the toggle link 15 crosses the dead point, the lock piece 14, which had been acting to pull down the tip of the operating panel 9, is activated in the backward direction. The spring 28 acting on the other hand acts to raise the tip of the operating plate 9, and the tip of the operating plate 9 suddenly springs up, causing the lock piece 14 to separate from the hook B.

Therefore, even if an unintended pressing force or impact is applied in the direction of pushing down the operating portion of the operating panel, the lock piece 14 will easily come off the hook B and the lock will be unlocked.

Of course, there is a locking device 38 that uses a key, but people often forget to lock the door.
In such a case, there is a risk that the small impact may cause the lock to open and the bag to open.

In particular, when using this lock on large bags such as suitcases and trunks, these bags are often handled roughly and subjected to shocks when loading and unloading cars, airplanes, etc. If you forget to use the lock device with a key, you may end up scattering things inside your bag.

The purpose of this invention is to solve the above problem and prevent the lock from being opened due to shock.The purpose of this invention is to solve the above problem and prevent the lock from being unlocked due to shock. The technical challenge is to prevent this from happening.

According to the present invention, the above-mentioned technical problem is solved by a box-shaped housing having a window hole on the top surface, a box-shaped housing that is fitted into the window hole of the housing, a middle part of which is rotatably attached to the housing, and a rear part of the housing that is fitted into the window hole of the housing. An operation plate that can be pushed into the housing, and a first spring that moves forward and backward in the housing in front of the pivoting part of the operation plate, and is always biased in the backward direction, and in the forward position, the side surface of the housing A lock piece that engages with a hook inserted into the housing from above and detaches from the hook in the advance/retract position is provided so that the front part of the operation plate is connected to the rear end of the lock piece. A toggle link that converts the rotation of the plate into forward and backward movement of the lock piece, and a slider provided at the rear of the operation plate, with an operator on the top side of the operation plate and an operator on the bottom side that moves forward and backward in conjunction with the above operator. The lower part is rotatably mounted in the housing behind the pivoting part of the operating plate, and the upper part is pushed forward by a second spring to push the front upper end. The slider is urged in the forward direction by contacting the rear end surface of the pusher of the slider, and when the slider is in the forward position, it is approximately upright and its upper end surface corresponds closely to the lower surface of the rear end of the operation plate, allowing the slider to retreat. This is achieved by a configuration including a stopper whose upper end surface is removed from the lower surface of the operating plate in a rearwardly inclined state.

Therefore, when the lock piece is in the forward position and engaged with the hook, the tip of the operation plate is at the bottom,
In this horizontal state, the stopper is in a substantially upright state directly below the rear end of the operating plate, and its upper end surface corresponds closely to the lower surface of the operating plate.

Therefore, in this state, even if a downward force is applied to the operator provided at the rear of the operation plate, the rear lower surface of the operation plate will hit the upper end surface of the stopper, preventing the operation plate from rotating, and the lock piece will be removed from the hook. Never cheat.

Further, at this time, the stopper presses the pusher forward by the elastic force of the second spring 25, and holds the slider in the forward position.

The slider slides backward when a backward force is applied to it, such as by placing a finger on the operator, and the pressing force causes the stopper to move against the second spring 25.
Push it backwards against the elastic force and remove its upper end from the operation plate.

Although it is not possible to rotate the operation panel and flip up the front part by simply pushing the above-mentioned controls backward, the rotation prevention of the operation panel is canceled when a downward force is applied to the rear of the operation panel. be done.

Therefore, if the operator is pressed downward in this state, the front part of the operation plate will be pivoted in the direction of flipping up for the first time, and the lock piece can be retracted and removed from the hook via the toggle link.

In other words, according to the present invention, the lock cannot be unlocked unless a force pushing the operator backward and a force pushing it downward are applied in succession, so even if a shock is applied for some reason. Even in such a case, as long as the impact is one that pushes the operator backwards or one that pushes the operator downwards, there is no risk of the lock being unlocked. and,
Normally, the impact exerting forces in both directions is not applied at the same time or sequentially.

Since the present invention has the above configuration, it has the following advantages.

(1) The operation of removing the stopper and rotating the operation plate, which are necessary to unlock the lock, are performed by continuous operation of the operator provided at the rear of the operation plate, so the unlock operation can be performed with one hand. It is easy to open the lock as it can be done with just one finger.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the figure, A is the lock body, B is the hook, and the former A
is attached to one of the two half-casings c ₁ and c ₂ of the bag C connected by a hinge, and the latter B is attached to the other half-casing _{c 2}
It is attached to correspond to the above-mentioned lock main body A.

Reference numeral 1 designates the housing of the lock main body A, which is rectangular in plan and consists of a box part 2 with an open top surface and an upper plate part 3 attached to the top surface. , this is the front), and the interior is divided into two chambers 4,
A partition wall 6 is provided which divides the room into 5 sections.

That is, the box portion 2 is divided into a small chamber 4 at the front and a large chamber 5 at the rear.

On the other hand, the large chamber 5 of the MEX section 2 is located in the upper plate section 3.
A rectangular window hole 7 corresponding to the small chamber 4 is provided, and a circular hole 8 is provided in a portion corresponding to the small chamber 4.

An operation plate 9 having the same planar shape as the hole 7 and slightly smaller in size is rotatably fitted into the window hole 7.

That is, the operation plate 9 has a shaft 10 protruding from the side edge thereof on the back surface, and the shaft 10 is rotatably engaged with a bearing 11 recessed in the upper end of the box portion 2 of the housing 1, so that the upper plate portion It is provided substantially flush with 3.

A shaft 10 and a bearing 11 that rotatably support the operation plate 9 are provided offset to the rear of the operation plate 9 and the large chamber 5, respectively.

The operation plate 9 has a slider 12 rearward from the shaft 10 and projecting legs 13 extending downward from both side edges in front of the shaft 10, and the projecting legs 13 communicate with a lock piece 14, which will be described later, via a toggle link 15. do.

The slider 12 consists of an operator 16 provided on the upper side of the operating plate 9 and a pusher 17 provided on the lower side of the operating plate 9. The operator 16 is formed in a shape that is easy to operate with a finger. It has an engaging leg part 18, and the engaging leg part 18 is engaged with a guide hole 19 which is long in the longitudinal direction of the operating plate 9 and is formed on the upper surface of the operating plate 9 in the longitudinal direction. The pusher 17 is slidably attached, and is shaped like a flat plate, and is attached and fixed to the engaging leg portion 18 of the operator 16 from the back side of the operation plate 9.

Therefore, the pusher 17 moves forward and backward on the back side of the operation panel 9 in conjunction with the slide of the operation element 16. When the rear end of the pusher 17 is in the forward position, the operation plate 9
It is located slightly forward of the rear end, and is located at the same position as or slightly behind the rear end of the operating plate 9 in the retracted position, and comes into contact with the front surface of a stopper 20, which will be described below.

The stopper 20 consists of a plate-shaped spring receiver 21 and a support leg 22 that slightly protrudes outward from the upper end of both left and right edges of the spring receiver 21 and extends downward. is supported by a bearing 24 provided at the lower end 2 of the inner surface of the rear part of the box portion 2 of the housing 1.

The lower part of the support leg 22 protrudes forward in the front-rear direction, particularly forward, and the shaft 23 is provided at the rear end.

Therefore, this stopper 20 can be rotated rearward, but cannot be rotated forward because its lower end surface hits the inner bottom surface of the box portion 2.

This stopper 20 is in an upright state,
The upper end surface thereof is provided so as to be in contact with the lower surface of the rear end of the operation plate 9 or to face it with a slight gap therebetween, and the upper front surface thereof is in contact with the rear end surface of the pusher 17 of the slider 12 .

In this state, the slider 12 is in the forward position,
The stopper 20 is always held in this state by the biasing force of the second spring 25.

Therefore, unless the operation plate 9 slides the slider 12 backward, presses the stopper 20 with the pusher 17, tilts it backward, and removes its upper end surface from the operation plate 9, the operation element 16 will not move downward. Even with pressure, the rear part of the plate cannot be pushed into the housing 1 and the front part of the plate cannot be raised.

The second spring 25 is a plate spring bent into a substantially U-shape, and is elastically loaded between the stopper 20 and the rear wall of the box portion 2 in an upwardly concave state.

A recess 26 for engaging the second spring 25 is provided on the back surface of the spring receiver 21 of the stopper 20.
is formed.

The lock piece 14 is slidably arranged in the large chamber 5 of the box part 2 in front of the protruding leg 13, and the rear part is connected to the protruding leg 13 of the operation plate 9 via a toggle link 15, and the rear chamber It is biased in the backward direction by a first spring 28 made of a coil spring stretched between a protrusion 27 protruding from the bottom surface.

A shaft 29 connecting the projecting leg 13 and the toggle link 15
is located below the line connecting the shaft 30 connecting the lock piece 14 and the toggle link 15 to the shaft 10 supporting the operation panel 9 when the operation panel 9 is in a horizontal state.

Therefore, in this state, the lock piece 14 cannot move back despite the force of the first spring 28, but the rotation of the operation plate 9 (upward rotation of the front part) is prevented.
The position of the shaft 29 rises as the shaft 29 moves upwards, and when it passes the dead point, that is, above the line connecting the shafts 30 and 10, it is pulled rearward by the force of the first spring 28 and retreats.

The lock piece 14 has a hook engaging recess 31 on the front surface, and in the forward state, when the bag C is closed, the hook B is inserted into the housing 1 through the penetration hole 32 drilled in the side surface of the housing 1. The engaging recesses engage and lock, and when the hook is retracted, the hook engaging recess 31 separates from the hook B and the lock is unlocked.

As described above, the lock piece 14 is retracted in conjunction with the rotation of the operation plate 9 in the direction of pulling the front part upward, and the rotation of the operation plate 9 causes the slider 12 to slide rearward and the stopper 20 The operation board 9
This is done by removing it from the housing 1 and pushing the rear part of the operation plate 9 into the housing 1.

On the other hand, in the small chamber 4 of the housing 1, a lock cylinder 33, which rotates when a key is inserted and rotated, is housed so as to be rotatable and not to fall out from the circular hole 8.
The upper surface portion having the keyhole 34 of No. 3 fits into the circular hole 8 of the upper plate portion 3 of the housing 1 and faces the upper surface substantially flush with the upper surface of the upper plate portion 3.

The lock cylinder 33 has a locking protrusion 35 on its circumferential surface, and as the lock cylinder 33 rotates, the lock cylinder 33 has a locking protrusion 35 that is rotated from the gap 36 formed between the upper plate part 3 and the upper end of the partition wall 6. It appears in the larger room 5.

Furthermore, a hooking portion 37 is provided at the front end of the operation plate 9 to receive the above-mentioned hooking protrusion 35 .

Therefore, even if the slider 12 is operated to remove the stopper 20 in a state where the latch protrusion 35 is engaged with the latch portion 37, the operation plate 9 cannot be rotated, and as a result, the lock is unlocked. It is not possible.

That is, they constitute a locking device 38 that cannot be unlocked without the use of a key.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a bag lock in a locked state showing an embodiment of the present invention, showing the state in which it is locked by a locking device. Fig. 2 is a cross-sectional view of a state in which the locking device is not removed and the stopper is removed. Figure 3 is a sectional view showing the unlocked state, Figure 4 is a sectional view taken along the - line in Figure 1, Figure 5 is a sectional view taken along the - line in Figure 1, and Figure 6 is an enlarged cross-sectional view of the main parts. 7 is a perspective view, FIG. 8 is a partially cutaway perspective view, FIG. 9 is a perspective view showing the state of use, and FIG. 10 is a sectional view showing an example of a conventional bag lock. In the figure, 1...housing, 7...window hole, 9...
Operation panel, 12...Slider, 14...Lock piece, 1
5...Toggle link, 16...Controller, 17...
Presser, 20... Stopper, 25... Second spring, 28... First spring, B... Hook.

Claims (1)

[Scope of utility model registration request] A box-shaped housing 1 having a window hole 7 on the top surface, a box-shaped housing 1 that is fitted into the window hole 7 of the housing 1, a middle part of which is rotatably attached to the housing 1, and a rear part that can be pushed into the housing 1. Operation panel 9
The operating plate 9 is provided so as to be movable forward and backward in the housing 1 in front of the shaft-mounted part, and is always biased in the backward direction by a first spring 28, and in the forward position, it is inserted into the housing 1 from the side of the housing 1. a lock piece 14 that engages with the inserted hook B and separates from the hook B in the retracted position;
The front part of the operation plate 9 is connected to the rear end of the lock piece 14 from the shaft attachment part, and the rotation of the operation plate 9 is controlled by the lock piece 14.
A toggle link that converts the forward and backward movement of the
It is slidably provided at the rear of the operation plate 9, with an operator 16 on the top side of the operation plate 9, and an operator 16 on the bottom side of the operation plate 9.
A slider 12 is equipped with a pusher 17 that moves forward and backward in conjunction with the slider 12, and a slider 12 is rotatably provided with its lower part pivoted in the housing 1 behind the pivoted part of the operation plate 9, and its upper part is attached to a second spring 25. The slider 12 is pushed forward by the slider 12, and its front upper end comes into contact with the rear end surface of the pusher 17 of the slider 12, thereby urging the slider 12 in the forward direction. In the forward position of the slider 12, the slider 12 is in an approximately upright state with its upper end surface A bag lock characterized by comprising a stopper 20 which corresponds closely to the lower surface of the rear end of the operating plate and whose upper end surface is detached from the lower surface of the operating plate 9 in a rearwardly inclined state when the slider 12 is in the retracted position.