JP3094625U - Security Thumb Turn Device - Google Patents

Abstract

(57) [Summary] [Problem] To provide a security device which can prevent unauthorized unlocking of a door by turning a thumb turn, and which can be easily attached without any particular construction. SOLUTION: A thumb turn cap 1 having a thumb turn holder 1A for restraining an existing thumb turn 10 on a door side.
, And a spring 3 is provided between the second thumb turn 4 and a locking portion 4D is provided at a position matching the convex portion 1D of the outer edge of the thumb turn cap 1 and the inner convex portion 1D of the second thumb turn 4. A joint projection 1C having at least one engagement surface provided at the center of the plane of the thumb turn cap 1 and a joint recess 5C of a stopper 5 having an engagement surface aligned with the engagement projection 1C are fitted. Then, the stopper 5 and the thumb turn cap 1 are fastened and fixed by the fastener 6 while the pressing portion 5B of the stopper 5 is pressed against the central flat portion of the stopper holder 4B.
The thumb turn 7 is provided detachably.

Description

[Detailed description of the invention]       [0001]     [Technical field to which the invention belongs]   The present invention can prevent unauthorized unlocking of a door by turning a thumb turn. Sumter, a criminal device that can be easily installed without any construction Device.       [0002]     [Prior art]   As a device that opens and closes a lock attached to the inside of a door, etc., When the thumb turn is installed together with the door knob, special equipment is externally installed inside the door. To rotate the thumb turn illegally.   In such cases, for security, cover the saturn with protective gabber, The crime prevention was carried out by attaching a device or the like that makes the vehicle idle.       [0003]     [Problems to be solved by the invention]   However, these devices involve construction work during installation and protect each time the lock is opened and closed. The cover lid must also be opened and closed to rotate the existing thumbturn.   Also, when trying to prevent crime by letting the thumb turn idle, the device is also locked It was necessary to replace every body.   In addition, do not fasten the knob that spins when you have a physical disability or for the elderly and children. Opening and closing the door in a push-and-roll manner is often very difficult.   Therefore, the present invention aims to solve these conventional problems, and the purpose is simple. Simple, inexpensive, detachable and versatile, suitable for most types of thumb turns It can be used by people with disabilities, the elderly, and children. It is an object of the present invention to provide a security thumb-turn device capable of security.       [0004]     [Means for Solving the Problems]   The present invention has a thumb turn holder 1A for restraining the existing thumb turn 10 on the door side. And the thumb turn cap 1   The lower end of the spring 3 is seated in the spring receiving groove 1B of the thumb turn cap 1, The spring pressing surface 4A of the second thumb turn 4 is urged to the upper end of the flat surface of the spring 3,   The outer edge of the thumb turn cap 1 and the inner edge of the second thumb turn 4 rotate. And slidably configured, and   A projection 1D provided on the outer edge of the thumb turn cap 1; When the locking portion 4D is provided opposite to a position matching the convex portion 1D inside of To   At the center of the plane of the second thumb tern 4, there is a switch having a third thumb tern holder 8. A through hole 9 into which the insertion portion 5A of the topper 5 is fitted;   At least one or more locking surfaces provided at the center of the plane of the thumb turn cap 1 And a stopper having a locking surface aligned with the joint 1C. 5 is fitted with the joining recess 5C, and   The pressing portion 5B of the stopper 5 is positioned at the center plane of the stopper holder 4B of the second thumb turn 4. The stopper 5 and the thumb turn cap 1 are placed at the center of the plane Through the hole 5F and the hole 1F, the stopper 5 and the thumb Is fixed.   The third thumb turn 7 is detachably provided on the third thumb turn holder 8 of the stopper 5. It is a security security thumb-turn device.       [0005]     [Embodiment of the invention]   Next, specific embodiments of the present invention will be described with reference to the drawings.   FIG. 1 is an overall perspective view of the present security thumb-turn device 20, and FIG. FIG. FIG. 3 is an exploded perspective view of the security thumb-turn device 20. FIG. 4 is an explanatory view in which the present apparatus is not mounted on the existing thumb turn 10 on the door side, and FIG. FIG. 6 is an explanatory view in which the device is mounted, and FIG. 6 requires the third thumb turn 7 of the mounted device. It is explanatory drawing which is attached and detached according to it.       [0006]   The main structure of the security thumb-turn device 20 shown in FIG. 1 is as shown in FIG. 2 and FIG. Thumb turner with a thumb turn holder 1A for restraining existing thumb turn 10 1 and the outer peripheral edge of the thumb turn cap 1 and the thumb turn cap 1 A second thumb turn 4 urged across the spring 3 so as to cover the Stopper 5 is fastened to thumb turn cap 1 through through hole 9 of thumb turn 4 The stopper 5 is provided with a third thumb-turn holder 8. That is, the third sumta The pattern holder 8 can include a third thumb turn 7, and the third thumb turn 7 is already provided. Become one with the existing Samturn 10.       [0007]   The thumb turn cap 1 has the spring 3 seated in the spring receiving groove 1B, The upper end of the flat surface of the spring 3 is pressed by the spring holding surface 4A of the Reference numeral 4 denotes a pressing portion 5B of the stopper 5, which presses the central flat portion of the stopper holder 4B. The thumb turn cap 1 and the second thumb turn 4 are repelled from each other.   The stopper 5 penetrating through the through hole 9 at the center of the plane provided in the second thumb turn 4 A joining recess 5C having at least one or more locking surfaces provided on the bottom surface of the insertion portion 5A; The joint projection 1C of the thumb turn cap 1 provided with the interlocking locking surface is located at the center. The second thumb turn 4 and the spring 3 are fitted by the fastener 6 through the hole 5F and the hole 1F. The thumb turn cap 1 and the stopper 5 are positioned at the center of the plane portion of the thumb turn cap 1. By being fastened respectively, the thumb turn cap 1, the second thumb turn 4, and the third The stopper 5 for holding the mutan 7 is integrated.       [0008]   In the central portion of the stopper 5, a second surface having at least one A third thumb turn holder 8 is provided. The insertion portion 7A with a locking surface having a mutual relationship with the dowel 8 can be inserted.   At that time, the existing Samturn 10 is replaced with the Samturn cap 1 and the second Samturn 4 It is simultaneously supported by the stopper 5 and inserted into the third thumb-turn holder 8 of the stopper 5. The third thumb turn 7 can be rotated without being particularly pushed or pulled. Thus, the existing thumb turn 10 rotates.   In addition, the outer periphery of the thumb turn cap 1 is provided inside the second thumb turn 4. A projection 1D that operates in alignment with the locking portion 4D is provided. When pushed to the door side, it locks even if the third thumb turn 7 is removed for security The existing thumb turn 10 can be rotated by the engagement between the portion 4D and the convex portion 1D. However, usually the lock is opened and closed by holding the third thumb tern 7 and the third Uses a device for unauthorized unlocking from outside by attaching / detaching thumb tern 7 You can make it difficult.       [0009]   FIG. 3 is an exploded perspective view showing the security thumb-turn device 20 of FIG. 1 disassembled and arranged in a line. There is not shown in FIG. 3 on the other end side of the convex portion 1D of the thumb turn cap 1. A thumb turn holder 1A covering the existing thumb turn 10 is provided. , Two types of thumb-turn holders 1A are provided in a cross shape, The thumb turn holder 1A is formed so that the device can be easily mounted according to the size and size. You.   The joining projection 1C provided at the center of the plane of the thumb turn cap 1 4 through a through-hole 9 not shown in FIG. -Shaped joint recesses with at least one or more locking surfaces aligned with each other for The insertion portion 5A of the stopper 5 provided with 5C is inserted, and is inserted into the hole at the center of the insertion portion 5A. Is fastened to the hole 1F with the fastener 6.       [0010]   Next, FIG. 4 attaches the security thumb-turn device 20 to the existing thumb-turn 10 on the door side. FIG. To install this security thumb-turn device 20, the existing For example, as shown in FIG. Can be fastened.   FIG. 5 is an explanatory diagram in which the security thumb-turn device 20 is mounted. In this case, the door side Is screwed as an example. After installing the device, With the three thumb turn 7, it can be rotated in the same manner as before mounting.   The normal usage method is to use the security thumb-turn device 2 with the third thumb-turn 7 mounted. By using 0, the same usability as before mounting can be obtained. Also, the third thumb Turn 7 can be made even larger and pinching of third thumb turn 7 if necessary It is easy to change the shape of the part, so that people with disabilities, elderly people and children can It is also possible to provide the third thumb turn 7 having a shape that is easy to use.       [0011]   FIG. 6 shows a method of use for crime prevention. As a result, it is extremely difficult for the second thumb turn 4 to illegally rotate from the outside. However, from the inner city, by pushing around the second thumb turn 4, the second thumb The engaging portion 4D and the convex portion 1D of the thumb turn cap 1 engage inside the turn 4, The existing thumb turn 10 can rotate.       [0012]     [Effect of the invention]   The security thumb-turn device 20 of the present invention is provided on the bottom side of the thumb-turn cap 1. The thumb turn holder 1A is restrained so as to cover the existing thumb turn 10 on the door side. And put the spring 3 in the spring receiving groove 1B provided in the flat portion of the thumb turn cap 1. While seated, while pressing the spring 3 with the pressing portion 5B of the second thumb turn 4, the second thumb The needle 4 is also fixed to the thumb turn cap 1 with the fastener 6 while being pressed by the stopper 5. To unlock the existing Samtern 10 from outside the door Even if you try to do so, the existing Samturn 10 is covered, Cannot lock.   However, when unlocking from inside the room, push the second thumb turn 4 toward the door in the axial direction. When the existing thumb turn 10 is rotated, the door can be opened.   Further, if the third thumb turn 7 is inserted into the third thumb turn holder 8, the third When the thumb-turn 7 is rotated, the entire security thumb-turn device 20 rotates, and the existing security M-turn 10 rotates around, so it can be used as a normal thumb-turn .   Therefore, by installing this device, it is possible to use It is possible to easily switch between traffic use and crime prevention use, and it requires construction work. Not even.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall perspective view of a security thumb-turn device 20 of the present invention. FIG. 2 is an explanatory sectional view taken along the line AA of FIG. 1; FIG. 3 is an exploded perspective view of the security thumb-turn device 20 of the present invention. FIG. 4 is an explanatory view in which the same device is not mounted on an existing thumb turn 10 on the door side. FIG. 5 is an explanatory view in which the present device is mounted on an existing thumb turn 10 on the door side. FIG. 6 is an explanatory view in which a mounted third thumb turn 7 of the present apparatus is detached as necessary. [Description of Signs] 1 Thumb turn cap 1A Thumb turn holder 1B Spring receiving groove 1C Joining convex part 1D Convex part 1E Hole 1F Hole 2 Fastener 3 Spring 4 Second thumb turn 4A Spring holding surface 4B Stopper holder 4D Locking part 5 Stopper 5A Insertion Part 5B Pressing part 5C Joining recess 5F Hole 6 Fastener 7 Third thumb turn 7A Insertion part 8 Third thumb turn holder 9 Through hole 10 Existing thumb turn 11 Door 20 Security thumb turn device

Claims (1)

[Claim 1] A thumb turn cap 1 having a thumb turn holder 1A for restraining an existing thumb turn 10 on a door side.
The lower end of the spring 3 is seated in the spring receiving groove 1B of the thumb turn cap 1, and the spring holding surface 4A of the second thumb turn 4 is urged to the upper end of the flat surface of the spring 3; And the inner peripheral edge of the second thumb turn 4 are configured to be rotatable and slidable, and the convex portion 1 provided on the outer edge of the thumb turn cap 1
D, a locking portion 4D is provided at a position inside the second thumb turn 4 that matches the convex portion 1D, and a third thumb turn holder 8 is provided at the center of the second thumb turn 4 in a plane. A joint projection 1C having at least one locking surface provided at the center of the plane of the thumb turn cap 1 and a through hole 9 into which the insertion portion 5A of the stopper 5 is fitted, and the junction projection 1C The stopper 5 is fitted with the joint recess 5C of the stopper 5 having a locking surface that is aligned with the stopper 5 while pressing the pressing portion 5B of the stopper 5 against the central flat portion of the stopper holder 4B of the second thumb turn 4.
The stopper 5 and the thumb turn cap 1 are fastened and fixed with fasteners 6 through holes 5F and holes 1F respectively provided in the center of the plane of the thumb turn cap 1 and the third thumb turn 7 is attached to and detached from the third thumb turn holder 8 of the stopper 5. A security-provided thumb-turn device.