JP2006177029A - Key attached screw cap for antitheft use - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a key attached screw cap for antitheft use capable of solving such a problem that there is conventionally no simple and sure antitheft means for the key attached screw cap protecting the automobile parts such as a navigator or the like fixed to the inside of an automobile with a screw from a burglar or a mischief. <P>SOLUTION: The key attached screw cap consists of a disc protector, a cap disc covering a screw and a key hole provided in the cap disc, and after an anchor metal fitting such as a stay or the like has been screwed, the cap disc is made to fittingly lock the disc protector engaged between the anchor metal fitting and the screw, and it is so constituted that the locking of the cap disc in the disc protector can be unlocked by inserting the key into the key hole. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a screw cover with a key that protects electrical components such as a car navigation system, a car TV, a car stereo, a radio, an amplifier, and a speaker, a license plate, and the like, which are screwed and fixed in, for example, an automobile.

  Car navigation systems, car TVs, car stereos, radios, amplifiers, speakers, etc. that are installed inside automobiles use commonly used + and-tapping screws, so even ordinary tools can be used. Once in, you can easily remove it and take it away, even if it's not a professional car.

  In order to prevent such theft, the head of the + or-tapping screw is crushed so that it cannot be removed, or wax is buried in the groove of the head of the + or-tapping screw, so that ordinary tools can be used immediately. Had a device that could not be used.

In addition, there is a method of attaching using special screws and screws, but a special tool corresponding to that is required for removal.
Japanese Patent Laid-Open No. 2003-130024 JP 2003-90322 A From the Takayama homepage of screws, tamper-proof screws.

  However, if the head of the + or-tapping screw is crushed so that it cannot be removed, it cannot be removed for repair or replacement of electrical components, so this is not a preferred anti-theft measure. The method of burying wax in the groove of the head of the head was not useful enough because it could be easily removed by heating and melting the wax.

  In addition, the method of attaching using special screws and screws requires special special tools that are suitable for removing them, and if they are available, they can be easily unscrewed to ensure reliable safety measures. I could not say.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a screw cover with a key for theft prevention that can reliably prevent theft with a simple structure and can easily remove electrical components and the like when necessary.

  In order to achieve such an object, the invention according to claim 1 is composed of a seat base, a cover plate that covers the screw, and a key hole provided in the cover plate, and after fixing a fixture such as a stay with screws, The lid is fitted and locked to the seat that is bitten between the fixing bracket and the screw, and the lock between the lid and the seat can be released by inserting a key into the keyhole. It is characterized by that.

  In the present invention, after fixing a fixing bracket such as a stay with a screw, the lid is fitted and locked to the seat bitten between the fixing bracket and the screw, and a key is inserted into the key hole, and the lid and Since the lock with the seat can be released, the lid cannot be removed without a key.

  Moreover, even if it is forcibly turned with a tool such as a spanner or a pliers, or even if it is to be pulled out, it is almost impossible to sandwich a dome-shaped lid having a slippery structure. Therefore, theft can be reliably prevented.

  FIG. 1 shows a state in which a car navigation is attached to a fixing bracket 2 such as a stay, 3 denotes a conventional + or -tapping screw, and 4 denotes a screw cover with a key for preventing theft according to the present invention. The attached state is shown. Normally, such attachment is not performed, but is shown for easy understanding of the difference between the conventional product and the present invention.

  FIG. 2 (a) is an exploded view of the screw cover 4 with a key for preventing theft according to the present invention. Reference numeral 6 denotes a dome-shaped cover plate for covering the screw. Is formed with a screw groove 7 of a cover plate for fitting into a screw groove 11 of a seat plate drilled in a seat plate 9 which will be described later, and a stopper claw 8 is provided at an opposite position.

  In the figure, 5 is a general + or -tapping screw. As is clear from FIG. 3 (a), the screw groove 11 of the seat base for fitting the screw groove 7 of the cover board drilled in the dome-shaped cover board is bored inside, and further, The seat is provided with a groove (stopper stopper) 10 into which the stopper claw 8 provided is dropped. Further, a hole 14 for inserting the screw 5 is formed.

  FIG. 2 (b) is a state diagram in which the keyed screw lid 4 is assembled. FIG. 3 (a) is a view of FIG. 2 from another angle, and FIG. 3 (b) is a plan view.

  FIG. 4 is an exploded view of a state in which the keyed screw lid 4 is attached to the fixing bracket 2 such as a stay, and 12 is a key for releasing the lock.

Since the present invention is configured in this manner, after the tapping screw 5 passed through the seat 9 is attached to the fixing bracket 2 such as a stay and tightened, the keyed screw lid 4 is fitted into the seat 9 and the stopper Screw until the pawl 8 is dropped into the groove (stopper stopper) 10. If you hear a click, the drop is complete. Thereafter, the lock cannot be released unless the key 12 is used. That is, since the lid is fitted and locked to the seated bite between the fixing bracket and the screw, it cannot be removed unless the key is inserted into the keyhole to unlock the lid and the seat.

As for the method of releasing the screw cover 4 locked to the fixing bracket 2 such as a stay, the screw cover 4 is inserted into the key hole 13 of the screw cover with the screw cover dedicated key 12 in advance and turned in the opposite direction to the locked state. After that, it is a sign that the stopper claw 8 and the groove (stopper stopper) 10 have been released, so if you turn the lid a few times, the release of the lid and the seat will be completed. After that, it can be screwed as usual and removal is easy.

Since the lid of the present invention has a rounded dome shape, it cannot be slid and pinched even if it is sandwiched and rotated with a tool such as a spanner or a pliers, or pulled out. In addition, even when trying to open the lid with a flathead screwdriver, it is not possible to open the lid with a flathead screwdriver because the screw groove 7 of the lid and the screw groove 11 of the seat base are engaged with each other. Is possible.

Although the present invention has been described mainly with respect to the prevention of theft of electrical components and license plates in the interior of automobiles, it is not limited to automobiles, but also for theft and mischief prevention of items mounted on motorcycles, bicycles, public facilities, etc. Needless to say, it is applicable.

The figure which shows the state by which the car navigation 1 was attached to fixing brackets 2, such as a stay. (A) is an exploded view of a screw cover 4 with a key for theft prevention according to the present invention. (B) is the state figure which assembled | attached the screw cover 4 with a key. (A) is the exploded view which looked at FIG. 2 from another angle. FIG. 3B is a plan view of FIG. The exploded view of the state which attaches the screw cover 4 with a key to fixing brackets 2, such as a stay.

Explanation of symbols

1 Electrical components such as car navigation 2 Fixing brackets such as stays 3 Tapping screw 4 Screw cover with key 5 Tapping screw (side)
6 Cover plate 7 Screw groove 8 on the cover plate 9 Stopper claw 9 Seat plate 10 Groove (stopper stopper)
11 Screw slot 12 on the seat 12 Key 13 Key hole 14 Insertion hole

Claims (1)

It consists of a base plate, a cover plate that covers the screw, and a key hole provided in the cover plate, and after fixing a fixing bracket such as a stay with screws, the seat plate bitten between the fixing bracket and the screw A screw cover with a key for preventing theft and mischief, which can lock the cover board by inserting and locking the key and inserting the key into the keyhole to release the lock between the cover board and the seat board.

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