AT18058U1 - Mechanical device for indicating the locking status of a lock - Google Patents

Abstract

The invention relates to a mechanical device for indicating the locked state of a lock, which consists of a key cap (1) for placing on a key and an associated attachment (5) for placing on a cylinder lock, wherein during the process of locking/turning the key Nose (6) of the attachment (S) in the trunk (2) of the key cap (1) engages the knob (7) of the shaft-bearing (8) cylinder (4), and thereby the locking state in the viewing window (3) of the key cap (1) is changed so that "Red" is displayed when locked and "Green" when unlocked.

Description

Description

MECHANICAL DEVICE FOR INDICATING THE LOCKING STATE OF A LOCK

The proposed invention is a device which indicates whether the door (e.g. front door) has been locked. This way you can be sure that you have locked the door and you can see immediately if it has been forgotten.

[0002] There are intelligent/electronic locks (including Smart Lock...) which indicate the locked status of the door, but these systems always require the installation of their own infrastructure. There are few simple and effective products that solve the problem mentioned.

A device is therefore proposed which signals whether the lock has been locked by turning the key when locking. This device consists of a key cap (shown in Figure 1), which is placed on the key and an attachment (shown in Figure 2), which is attached, clamped or glued to the associated lock or lock cylinder. Both parts are made of dimensionally stable plastic.

[0004] During the locking process (shown in Figure 3) of a lock, the following happens:

In the trunk (2) of the key cap (1) there is a shaft-bearing (8) cylinder (4) with a knob (7), which is moved by the nose (6) of the attachment when the key is turned, which means that the display is in the Visible window (3), which sits in the trunk of the key cap (1), is changed.

[0006] The following happens in detail:

The trunk (2) is located at the lower end of the key cap (1). The display/viewing window (3) is located on the front (towards the key bit). The nose (6) of the attachment (shown in Figure 2) engages the knob (7) of the cylinder (4) in the viewing window of the trunk. This knob (7) is located in the middle of the cylinder. The left side of the cylinder is covered in green, the right side is red.

By turning the key, the nose (6) of the attachment (5) engages the knob (7) of the cylinder (4) and turns it to the left or right - depending on the rotation of the key - until the knob (7) is on The trunk housing is in line (the cylinder shows RED in the viewing window).

By turning the key in the opposite direction, the nose (6) engages the knob (7) again and turns the cylinder (4) in the other direction until the knob (7) rests on the opposite trunk housing (the cylinder points in the viewing window GREEN).

The cylinder (4), shown in Figure 5, consists of dimensionally stable plastic with a shaft (8) made of metal. The shaft is firmly seated in the trunk housing (2) at the top and bottom. The cylinder (4) moves freely around the shaft (8), but relatively tightly in the trunk housing. This avoids arbitrary changes to the display. The left half of the cylinder surface is covered in GREEN, the right half in RED. This mechanism or process is shown from above in Figure 6.

Turning the key multiple times in one direction does not cause any further change in the display, since the nose (6) moves flexibly over the knob (7) as soon as it is in the far left or far right position, as the knob (7) is blocked by the trunk housing.

Only by turning the opposite key does the nose (6) turn the cylinder (4) in the opposite direction by attacking the knob (7).

The process works regardless of whether the key is inserted horizontally or vertically.

Figure 1. Shows the view of the key cap (1 with viewing window from the side or in section with the cylinder.

Figure 2. Shows the attachment for the lock from the side. [0016] Figure 3. Shows the process in use.

Figure 4. Shows the view of the key cap from the front, with the viewing window with the cylinder (4) and the knob (7) being shown in detail here.

Figure 5. Shows the cylinder (4) with the knob (7) and the shaft (8), which sits in the trunk (2) of the key cap (1).

[0019] Figure 6. Shows the view of the cylinder (4) from above.

Figure 7 shows a side view of the key cap (1), with the cylinder (4), which sits in the trunk (2).

REFERENCE SYMBOL LIST

1. Key cap

2. Proboscis

3. Viewing window/display of locked state 4. Cylinder

5. Attachment for the lock

6. Nose 7. Knob 8. Wave

Claims (4)

Expectations 1. Mechanical device for indicating the locked state of a lock, characterized in that it consists of a key cap (1) for placing on a key and an associated attachment (5) for placing on a cylinder lock, with the process of locking/turning the key, the nose (6) of the attachment (5) in the trunk (2) of the key cap (1) engages the knob (7) of the shaft-bearing (8) cylinder (4), and thereby the locking state in the viewing window (3) of the key cap ( 1) is changed so that "Red" is displayed when locked and "Green" when unlocked. 2. Mechanical device for indicating the locked state of a lock, according to claim 1, characterized in that the cylinder (4), which is mounted in the trunk (3), consists of dimensionally stable plastic with a shaft (8) made of metal, the shaft ( 8) is stuck at the top and bottom of the trunk (2), so that the cylinder (4) moves freely around the shaft (8), but sits relatively tightly in the trunk housing. 3. Mechanical device for displaying the locked state of a lock, according to claim 1, characterized in that turning the key multiple times in one direction does not cause any further change in the display, since the nose (6) moves flexibly over the knob (7) as soon as This is in the far left or far right position because the knob (7) is blocked by the trunk housing and only by turning the counter key does the nose (6) turn the cylinder (4) in the opposite direction by attacking the knob (7). 4. Mechanical device for displaying the locked state of a lock, according to claim 1, characterized in that the viewing window (3) which sits in the trunk (2) of the key cap (1) allows the locked state of the lock to be clearly visible visually by the display either " Red" or "Green" shows. 4 sheets of drawings