JP5205826B2 - Door lock mechanism - Google Patents

Description

  The present invention relates to a door lock mechanism in equipment such as an industrial recorder.

  In order to protect the recorder main body from the installed environmental atmosphere, a kind of industrial recorder is housed in a box-shaped case with a door that can be opened and closed so that it can be pulled out. There is something.

  Usually, in such an industrial recorder, the recorder main body is housed and fixed inside the case, and the door on the front surface of the case is locked. Open the door when necessary, such as changing the measurement condition settings or maintenance and inspection of the recorder main unit, expose the front of the recorder main unit, and operate the operation switches provided on the front. Release the lock and pull out the recorder body from the case to perform maintenance and inspection work on the recorder body.

  FIG. 3 is a block diagram showing an example of such a conventional industrial recorder, where (A) is a perspective view, (B) is a front bottom view with the door closed, and (C) is (B). FIG. The door 1 is attached to one end of a front opening of a case 3 that houses the recorder main body 2 via a hinge 4 so as to be opened and closed. A latch 5 is provided on the bottom surface of the door 1. The latch 5 is formed with a fitting portion 51. A pin 6 is provided on the bottom surface of the case 3 so that the fitting portion 51 of the latch 5 provided on the bottom surface of the door 1 is detachably fitted.

  The door 1 opens and closes the front opening of the case 3 by rotating around the hinge 4. By closing the door 1, the fitting portion 51 of the latch 5 is fitted to the pin 6 provided in the case 3, and the door 1 is locked to the case 3 by the frictional force acting between the fitting portion 51 and the pin 6. The When the door 1 is opened, a part of the free end of the door 1 is pulled to release the fitting due to the frictional force between the fitting portion 51 of the latch 5 and the pin 6.

Claim 2 of Patent Document 1 discloses a specific configuration example of a door lock mechanism in a recorder.
Japanese Utility Model Publication No. 02-140415

  However, according to the configuration of FIG. 3, the fitting portion 51 and the pin 6 of the latch 5 are connected to the front opening of the case 3 by the frictional force between the fitting portion 51 and the pin generated along the rotation direction of the door 1. For example, it is sufficient to release the fitting due to the frictional force between the fitting portion 51 of the latch 5 and the pin 6 along the direction in which the door 1 is opened by the vibration caused by the occurrence of an earthquake. If a strong force is applied, the door 1 may open without permission.

  The present invention solves such a problem, and an object of the present invention is to realize a door lock mechanism that has a relatively simple configuration and that is not easily released by a vibration caused by an earthquake. is there.

In order to solve the above-mentioned problem, the invention described in claim 1
A door lock mechanism for an industrial recorder, in which a door is opened and closed via a hinge at one end of a front opening of a box-shaped case in which the recorder main body is retractably housed,
A pin provided on the bottom surface to the bottom surface facing the door of the front opening near said casing,
Slidably disposed in the longitudinal direction along the direction of the hinge on the bottom of the door, one end of which is formed so as to protrude from the front surface of the door as an operation unit, for restricting the sliding range in the center portion A lever in which an oval hole is formed along the longitudinal direction and a fitting portion is formed on the other end so as to fit the pin ;
The lever is constituted by a spring formed in a ring shape so as to bias in the direction of the hinge,
Wherein the lever the hinge against the bias by the spring to release the locked state by fitting between the fitting portion and the pin of the lever by sliding in the opposite direction, opening the door And

  According to the present invention, it is possible to realize a stable door lock mechanism with a relatively simple configuration that is not easily released by a vibration such as an earthquake.

Hereinafter, the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram showing an embodiment of the present invention, (A) is a front view, (B) is a front bottom view, (C) is an enlarged view showing a locked state of a B portion of (B), (D) is an enlarged view showing the unlocked state of the B portion of (B), (E) is an enlarged view showing the state before the door is closed and enters the locked state, and (F) is an enlarged view of the C portion of (B). It is.

  The door 7 is attached to one end of the front opening of the case 9 that houses the recorder main body 8 through a hinge 10 so as to be opened and closed. A lever 11 is provided on the bottom surface of the door 7 so as to be slidable in the longitudinal direction along the direction of the hinge. One end of the lever 11 is formed as an operation portion 111 so as to protrude from the front surface of the door 7, and an oblong hole 112 for regulating the slide range is formed along the longitudinal direction at the center portion, and a case is formed at the other end. The fitting part 113 is formed so that it may fit in the pin 12 provided in the bottom face of 9.

Two bosses 13 and 14 for slidably guiding the lever 11 are inserted into the oval hole 112 and fixed to the bottom surface of the door 7 with screws 15 and 16. The lever 11 is urged by a spring 17 formed in a ring shape so as to be pressed in the direction of the hinge 10 indicated by an arrow E in FIG. One end 171 of the spring 17 formed in a ring shape is locked in a hole 91 provided in the bottom surface of the door 7, and the other end 172 is locked in a hole 114 provided in the lever 11.

  FIG. 2 is an operation explanatory diagram of the industrial recorder configured as shown in FIG. 1, (A) is a perspective view showing a state in which the door is closed, (B) is an enlarged view of a D portion of (A), (C) is a perspective view which shows the state which opened the door.

  In a normal state in which no force is applied from the outside, the lever 11 has an arrow E shown in FIG. 1C by a spring 17 formed in a ring shape, as shown in FIGS. It is urged | biased so that it may press to the hinge 10 shown by the horizontal direction.

  Therefore, when the door shown in FIG. 2 (A) is closed, as shown in FIG. 1 (C), the lock in which the pin 12 provided on the bottom surface of the case 9 is fitted to the fitting portion 113 of the lever 11 is fitted. It is in a state. In such a locked state, for example, even if an earthquake occurs and force is applied to the door 7 along the direction of opening the door 7 due to the vibration, the direction of the force is different from the unlocking direction. The door 7 will not be released and the door 7 will not open without permission.

  When the door 7 is opened from the closed state, as shown in FIG. 2 (B), the lever 11 is slid in the direction opposite to the hinge 10 against the biasing force of the spring 17, thereby causing the lever 7 to slide in the direction shown in FIG. As shown in FIG. 2, the locked state by the fitting between the fitting portion 113 of the lever 11 and the pin 12 provided on the bottom surface of the case 9 is released, and the end portion of the door 7 is pulled out to the front. As a result, the door 7 rotates in the opening direction around the hinge 10 as shown in FIG.

  On the other hand, when the door 7 is closed from the opened state, the end of the opened door 7 is pressed toward the case 9. As a result, the door 7 rotates in the closing direction around the hinge 10 as shown in FIG.

  When the door 7 is rotated around the hinge 10 and closed, the outer peripheral surface of the fitting portion 113 of the lever 11 contacts the pin 12 as shown in FIG. When the door 7 is further closed, the contacted surface of the lever 11 slides left and right along the pin 12 against the biasing force of the spring 17, and finally the lever as shown in FIG. 11 is in a locked state in which the pin 12 provided on the bottom surface of the case 9 is fitted to the fitting portion 113. As a result, the door 7 is not opened unless the lever 11 is slid.

  In the above-described embodiment, the door lock mechanism in the industrial recorder has been described. However, the lock mechanism is incorporated in the vertical direction with respect to the door that is attached to the opening of the case with the hinge as the rotation center. Even when there is not enough room, it is possible to lock with space saving by only sliding in the horizontal direction, so it is effective as a door lock mechanism in various devices.

  As described above, according to the present invention, it is possible to realize a door lock mechanism that is not easily released by a vibration such as an earthquake with a relatively simple configuration in which a lever is slid horizontally. Can do.

It is a block diagram which shows the embodiment of this invention. It is operation | movement explanatory drawing of FIG. It is a block diagram which shows an example of the conventional industrial recorder.

Explanation of symbols

7 Door 8 Recorder body 9 Case 10 Hinge 11 Lever 12 Pin 13, 14 Boss 15, 16 Screw 17 Spring

Claims (1)

A door lock mechanism for an industrial recorder, in which a door is opened and closed via a hinge at one end of a front opening of a box-shaped case in which the recorder main body is retractably housed,
A pin provided on the bottom surface to the bottom surface facing the door of the front opening near said casing,
Slidably disposed in the longitudinal direction along the direction of the hinge on the bottom of the door, one end of which is formed so as to protrude from the front surface of the door as an operation unit, for restricting the sliding range in the center portion A lever in which an oval hole is formed along the longitudinal direction and a fitting portion is formed on the other end so as to fit the pin ;
Wherein a ring shape so as to bias the lever in the direction of the hinge, one end and the other end is anchored to the bottom of the door consists of a bundle being engaged with the lever,
Wherein the lever the hinge against the bias by the spring to release the locked state by fitting between the fitting portion and the pin of the lever by sliding in the opposite direction, opening the door And door lock mechanism.

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