Electronic lock, electric lock device

Abstract

To provide an electronic lock or an electric lock capable of unlocking the locked lock in the event of a fire, for evacuation and rescue.SOLUTION: The base plate assembly includes a deadbolt attached. The shape memory alloy plate that prevents rotation due to high temperatures during a fire deforms, causing the holder pin to rotate on the axis, and the deadbolt will come off the protrusion in the front door frame and unlock the door.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to the operation of electronic or electric locks. [Background technology]

[0002] Electronic or electric locks installed on front doors are designed to automatically lock when the door is closed, but since the lock remains on even in emergencies such as fires, the door needs to be unlocked in the event of an emergency evacuation or rescue. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-179140. [Patent Document 2] JP 2016-145480 A. [Non-patent document 3] “REMOCK”, [online], YAMAMOTO SHOJI Corporation, [Retrieved May 1, 2020]. Summary of the Invention [Problem to be solved by the invention]

[0004] In the event of a fire, it is necessary to unlock locked electronic or electric locks for evacuation and rescue. [Means for solving the problem]

[0005] This electronic lock or electric lock device is characterized by the fact that when the deadbolt is caught in the door frame and the door is locked, if the temperature inside the entrance becomes high during a fire, the shape memory alloy plate that prevents the base plate from rotating deforms, causing the base plate to rotate and unlock. [Effects of the Invention]

[0006] By installing the electronic lock of the present invention, it is possible to respond to fire emergencies without requiring major construction work on the door.

[0007] By installing the electric lock of the present invention, it is possible to respond to fire emergencies without requiring major construction work on the door. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an external perspective view of an electronic lock according to an embodiment of the present invention; [Figure 2] FIG. 1 is a front view of an electronic lock of the present invention installed on a front door, viewed from the inside of the room. [Figure 3] FIG. 3 is an enlarged view of the electronic lock and its surroundings of the present invention in FIG. 2. [Figure 4] Section AA in Figure 2. [Figure 5] Enlarged view of detail "B" in Figure 4. [Figure 6] A perspective view of the entrance door from the outside. [Figure 7] FIG. 2 is a plan view of the electronic lock of the present invention when locked. [Figure 8] FIG. 2 is a plan view of the electronic lock of the present invention when unlocked. [Figure 9] 1 is a perspective view of the electronic lock of the present invention with the upper cover and lower case removed. [Figure 10] FIG. [Figure 11] A perspective view of the unlocking configuration by rotating the base plate assembly in the event of a fire.

[0009] In this description, an electronic lock that is powered by a battery is defined as an electronic lock and is referred to as an electronic lock.

[0010] In this explanation, electronic locks refer to both those that require holes or screws to be drilled into the door and cannot be easily removed or relocated, and those that do not require holes or screws to be drilled into the door and can be easily removed or relocated, as shown in the structural explanation below.

[0011] In this description, an electric lock that is powered by a commercial power source is defined as an electric lock and will be referred to as an electric lock. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings, but the technical scope of the present invention is not limited to such an embodiment.

[0013] 1 to 6 show examples of installation of an electronic lock device according to an embodiment of the present invention. The electronic lock device depicted here can be installed without drilling holes or screwing into the door. Specifically, FIG. 1 is an overall external view of the present invention. FIG. 2 shows an example of an installation position of an electronic lock of the present invention as seen from the interior side of the front door. FIG. 3 is an enlarged view of the installation position of an electronic lock of the present invention. FIG. 4 is a cross-section illustrating the installation position of an electronic lock of the present invention on a front door, and FIG. 5 is an enlarged view illustrating hemming of a thin steel plate used in an example of an installation form. FIG. 6 is a perspective view of the front door as seen from the outside, showing how a portion of the present invention looks from the outside.

[0014] Furthermore, Figs. 7 to 11 are explanatory diagrams of the mechanical configuration and operation of one embodiment of the present invention. Specifically, Fig. 7 is a front view of the electronic lock of the present invention when locked with the top cover (no reference numeral) removed, and Fig. 8 is a front view of the electronic lock when unlocked. Fig. 9 is a perspective view of the electronic lock of the present invention with the top cover and bottom case (no reference numeral) removed. Furthermore, Fig. 10 is a perspective view of the frame configuration of the mechanical components in the electronic lock of the present invention to be installed on a front door. Also, Fig. 11 is a perspective view of the assembly to explain unlocking in the event of a fire in the present invention.

[0015] The following description will be given in order, starting with Figure 1. Figure 1 shows the external appearance of an electronic lock body 100, which is made up of a deadbolt 120 and a retaining plate 110.

[0016] Next, an example of the installation position of the electronic lock main body 100 in Fig. 1 will be explained with reference to Fig. 2. The electronic lock main body 100 is installed at the upper end of the front door 10 on the side of the lever handle a 11. Fig. 2 also serves to explain the cross-sectional position of Fig. 4 (described later).

[0017] The deadbolt 120 in FIG. 3 is positioned so as to overlap with the entrance door frame protrusion 20a, and details will be explained in FIG.

[0018] In Figure 4, a retaining plate 110 is fixed to the entrance door 10 with double-sided tape 114, and the retaining plate 110 also holds down the outside of the entrance door 10. The reason the retaining plate 110 is made of a thin steel plate is because it is installed in the gap between the entrance door 10 and the entrance door frame protrusion 20a. The shape of the tip of the retaining plate 110 that holds down the entrance door 10 from the outside is explained in detail in Figure 5.

[0019] In Fig. 5, the tip of the holding plate 110 is shaped as a hemming bent portion 110a, and the electronic lock body 100 in Fig. 4 is fixed in the gap between the hemming bent portion 110a and the front door 10 via a cushion 113. When a strong force is applied outward in the pulling direction from the handle lever 13 b in Fig. 6, the hemming bent portion 110a is directly received by the front door 10.

[0020] Figure 6 shows how the electronic lock looks on top of the front door 10, and is designed to be unobtrusive aesthetically. The front door 10 and the front door frame 20 are connected via hinges a 15, b, and c.

[0021] Figure 7 shows the locked state of the electronic lock body 100 in the position of the deadbolt 120, and Figure 8 shows the unlocked state of the electronic lock body 100 in the tilted position of the deadbolt 120, i.e., away from the front door frame protrusion 20a. Here, the deadbolt 120 rotates around the b-shaft 121.

[0022] Next, the configuration of the electronic lock main body 100 will be explained using Figures 9 and 10. The explanations of Figures 9 and 10 here are for a state where the lower case 101 and upper cover 102 (both without reference numerals) are removed. In Figure 10, a holding plate 110, which is a thin steel plate, and a frame 111, which is made of a steel plate thicker than the holding plate 110, are joined by welding or the like to improve strength. In Figure 9, a base plate assembly 130 is mounted on the frame 111. In addition, a battery case 115 is fixed to the frame 111 together with a battery 116.

[0023] In the base plate assembly 130 in FIG. 13, a shape memory alloy plate prevents the base plate from rotating. The shape memory alloy metal fittings that prevent the base plate from rotating are deformed by the high temperatures during a fire, causing the deadbolt 120 to rotate around the holder pin 148, and the deadbolt 120 disengages from the front door frame protrusion 20a (see Figure 3), unlocking the door.

[0024] The above describes a product with a structure using shape memory alloys as an example, but it is also possible to achieve a similar unlocking function using a structure such as a temperature sensor that detects high temperatures and unlocks the lock.

[0025] By unlocking the door in the event of a fire, doors that would not open without a special unlocking operation are automatically unlocked, making evacuation and rescue easier in the event of a fire. [Explanation of symbols]

[0026] 10. Entrance door 11 Lever Handle 12 Thumb turn 13 b lever handle 14 cylinders 15 a hinge 16 b hinge 17 c hinge 20 Entrance door frame 20a Entrance door frame protrusion 20b Entrance door frame protrusion end face 100 Electronic lock body 103 Guide plate 109 d screw 110 Retaining Plate 111 frames 113 Cushion 114 double-sided tape 115 Battery Case 116 Batteries 120 Deadbolt 121 b shaft 130 Base Plate Assembly 146a base plate 147a Base Plate Assembly 148 Holder Pin

Claims

1. An electronic or electric locking device that uses parts made of shape memory alloy and has the function of rotating the internal mechanical structure when exposed to high temperatures during a fire, thereby unlocking the locked state.

2. An electronic or electric locking device that uses high-temperature detection components such as a temperature sensor and has the function of rotating the deadbolt to unlock the locked state when the temperature sensor reacts to the high temperatures caused by a fire.

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