JP2006169958A - Earthquake resistant lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dispense with lock releasing operation after locking operation, in an earthquake resistant lock device of a moving body such as a door. <P>SOLUTION: This earthquake resistant lock device 10 has a hook device 50 on the cabinet 20 side, and a hook receiver 40 on the door 30 side. The hook device 50 has a hook body 90, and an energizing means (for example, a weight 100). The hook body 90 has a rotary shaft 91 positioned in one end part and rotatably installed inside a cabinet 20, and a movable hook part 92 positioned in the other end part and bent in a key shape hooked on the hook receiver 40. The energizing means (the weight 100) is arranged in the hook body 90, and is made eccentric to the rotary shaft 91, and the movable hook part 92 always energizes in the direction for separating from the hook receiver 40. When vibration of a predetermined value or more is added, the movable hook part 92 rotates around the rotary shaft 91, and allows hooking on the hook receiver 40. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an earthquake-resistant locking device for a moving body such as a door, and particularly eliminates the need for unlocking operation after a locking operation.

The applicant of the present application has proposed that a door is locked by utilizing the fact that a spherical weight falls during vibration (see paragraph numbers “0038” to “0042” of Patent Document 1 and FIGS. 1 to 6). ).
The lock device maintains the door locked state when the spherical weight is dropped due to vibration.

For this reason, when opening the door, an unlocking operation for raising the weight to the original position is required.
JP-A-9-67969 (paragraph numbers “0038” to “0042”, FIGS. 1 to 6)

However, the lock device described above requires an unlocking operation when the weight is accidentally dropped due to movement of furniture when moving the furniture, or vibration of a car traveling in the vicinity, instead of an earthquake. There was a first problem that would occur.
In addition, there is a second problem in that the lock release operation must be frequently performed when used for preventing the fall of a load due to shaking of a ship or a truck.

Accordingly, each of the first to third aspects of the invention has been made in view of the above-described problems of the prior art, and the object thereof is as follows.
(Claim 1)
According to the first aspect of the present invention, the lock is automatically released after the vibration is stopped.

In addition to this, the invention described in claim 1 makes it possible to use a weight as the biasing means.
(Claim 2)
  In the first aspect of the invention, as in the first aspect of the invention, after the vibration is stopped, the lock is automatically released.

  In addition to this, the invention according to claim 2 is configured such that a spring can be used as the biasing means.
(Claim 3)
  The invention described in claim 3 has the following object in addition to the object of the invention described in claim 1 or claim 2.

  That is, the invention described in claim 3 can be used for a cabinet door.

(Feature point)
Each invention described in each claim is made to achieve each of the above-mentioned objects, and the characteristic points of each invention are described below using the embodiments of the invention shown in the drawings. To do.
(Claim 1)
The invention described in claim 1 is characterized by the following points.

First, the earthquake-resistant locking device (10) has the following configuration, for example, as shown in FIG.
        (1) Hook receiver (40)
  The hook receiver (40) has a fixed hook portion (42) bent into a key shape, for example, as shown in FIG.
        (2) Hook device (50)
  The hook device (50) is hooked to the fixed hook portion (42) of the hook receiver (40), for example, as shown in FIG.

  Secondly, the hook device (50) has the following configuration, for example, as shown in FIG.
        (3) Hook body (90)
  For example, as shown in FIG. 1, the hook main body (90) is positioned at one end of the rotary shaft (91) and at the other end, and for example, as shown in FIG. And a movable hook portion (92) bent in a key shape to be hooked on the portion (42).

        (4) Energizing means
  For example, as shown in FIG. 1, the urging means is provided on the hook body (90) and is eccentric with respect to the rotating shaft (91), and the movable hook portion (92) is always a fixed hook of the hook receiver (40). When urged in a direction away from the portion (42) and a vibration exceeding a predetermined value is applied, for example, as shown in FIG. 5, the movable hook portion (92) rotates around the rotation shaft (91), It is allowed to be caught on the fixed hook portion (42) of the hook receiver (40).

  Thirdly, the urging means comprises a weight (100) as shown in FIG. 1, for example.
  Fourth, the fixed hook portion (42) of the hook receiver (40) is opened toward the movable hook portion (92) of the hook body (90), for example, as shown in FIG.
  Fifth, the movable hook portion (92) of the hook body (90) opens opposite to the fixed hook portion (42) as shown in FIG.

  Sixth, as shown in FIG. 5, for example, the movable hook portion (92) is hooked on the fixed hook portion (42) of the hook receiver (40) by rotating around the rotating shaft (91).
  Seventhly, the weight (100) is fixed to the hook body (90), for example, as shown in FIG. 1, and the movable hook portion (92), for example, as shown in FIG. The rotating shaft (91) is rotated about the center.
(Claim 2)
  The invention described in claim 2 is characterized by the following points.

First, the earthquake-resistant locking device (10) has the following configuration, for example, as shown in FIG.
        (1) Hook receiver (40)
  For example, as shown in FIG. 7, the hook receiver (40) has a fixed hook portion (42) bent into a key shape.
        (2) Hook device (50)
  The hook device (50) is hooked to the fixed hook portion (42) of the hook receiver (40), for example, as shown in FIG.

  Secondly, the hook device (50) has the following configuration, for example, as shown in FIG.
        (3) Hook body (90)
  For example, as shown in FIG. 7, the hook main body (90) is positioned at one end of the rotary shaft (91) and at the other end. For example, as shown in FIG. 8, the hook receiver (40) is fixed to the hook. And a movable hook portion (92) bent in a key shape to be hooked on the portion (42).

        (4) Energizing means
  For example, as shown in FIG. 7, the urging means is provided on the hook body (90), is eccentric with respect to the rotating shaft (91), and the movable hook portion (92) is always a fixed hook of the hook receiver (40). When urged in a direction away from the portion (42) and a vibration of a predetermined level or more is applied, for example, as shown in FIG. 8, the movable hook portion (92) rotates around the rotation shaft (91), It is allowed to be caught on the fixed hook portion (42) of the hook receiver (40).

  Thirdly, the biasing means is constituted by a spring (110) as shown in FIG. 7, for example.
  Fourth, the fixed hook portion (42) of the hook receiver (40) is opened toward the movable hook portion (92) of the hook body (90) as shown in FIG. 7, for example.
  Fifth, the movable hook portion (92) of the hook body (90) is opened opposite to the fixed hook portion (42) as shown in FIG. 7, for example.

  Sixth, as shown in FIG. 8, for example, the movable hook portion (92) is hooked on the fixed hook portion (42) of the hook receiver (40) by rotating around the rotation shaft (91).
  Seventh, the movable hook portion (92) is rotated about the rotation shaft (91) by the spring restoring force of the spring (110), for example, as shown in FIG.
(Claim 3)
  The invention described in claim 3 is characterized by the following points in addition to the characteristics of the invention described in claim 1 or claim 2.

  First, the fixed body is composed of a cabinet (20) as shown in FIG. 2, for example.
  2ndly, a mobile body is comprised from the door (30) attached to the cabinet (20) so that opening and closing is possible, for example, as shown in FIG.
  Third, the hook receiver (40) is fixed to the inside of the door (30) as shown in FIG. 2, for example.
  Fourthly, the rotating shaft (91) of the hook body (90) is fixed to the inside of the cabinet (20) as shown in FIGS.

Since this invention is comprised as mentioned above, there exists an effect as described below.
(Claim 1)
According to invention of Claim 1, there exist the following effects.
That is, according to the first aspect of the present invention, the lock can be automatically released after the vibration is stopped.

In addition to this, the structure of the apparatus can be simplified as compared with a conventional apparatus using a conventional spherical weight.
Furthermore, according to the first aspect of the present invention, the weight can be used as the biasing means.
(Claim 2)
According to invention of Claim 2, there exist the following effects.

  That is, according to the invention described in claim 2, as in the invention described in claim 2, the lock can be automatically released after the vibration is stopped.
  In addition to this, the structure of the apparatus can be simplified as compared with a conventional apparatus using a conventional spherical weight.
  Furthermore, according to the invention described in claim 2, a spring can be used as the biasing means.
(Claim 3)
  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the following effect is obtained.

  That is, according to the invention of Claim 3, it can utilize for the door of a cabinet.

(First embodiment)
1 to 6 show a first example of an embodiment of the present invention, respectively.
FIG. 1 shows a cross-sectional view of the seismic lock device.
FIG. 2 shows a perspective view of the cabinet.
3 and 4 each show a hook device, FIG. 3 is a plan view, and FIG. 4 is a side view of FIG.

5 and 6 show the seismic lock device, FIG. 5 corresponds to FIG. 1 and is a cross-sectional view showing an operation state, and FIG.
(Seismic lock device)
In the figure, reference numeral 10 denotes a seismic lock device. The lock device 10 includes a pair of left and right doors 30 attached to an opening surface of a cabinet 20 such as a shelf, for example, as shown in FIG. For example, the door 30 is not opened when an earthquake occurs.

The locking device 10 is attached to the left and right doors 30 respectively. However, if one of the left and right doors 30 is not opened and the other is not opened, the locking device 10 may be attached to either one.
As shown in FIG. 1, each of the locking devices 10 includes a hook receiver 40 and a hook device 50 that engages with and disengages from the hook receiver 40.
(Hook receiver)
As shown in FIG. 1, the hook receiver 40 uses, for example, a screw 60, a plate-like base end portion 41 screwed to the inner side surface 31 of the door 30, and a cabinet from the upper end portion of the base end portion 41. And a fixed hook portion 42 that extends laterally toward the back of 20 and is bent downward into a key shape.

The hook receiver 40 has rigidity, and is integrally formed by, for example, POM.
(Hook device)
As shown in FIGS. 1, 4, and 5, the hook device 50 can be broadly divided, for example, using a screw 70, and a base 80 screwed to the upper surface 21 inside the cabinet 20, and can be rotated to the base 80. And a hook body 90 that is hooked on the fixed hook portion 42 of the hook receiver 40.
(Hook device: Base)
As shown in FIGS. 1 and 4, the base 80 has a horizontal portion 81 screwed to the upper surface 21 of the cabinet 20, and an L-shaped cross section downward from an end of the horizontal portion 81 on the back side of the cabinet 20. And a pair of left and right bearing portions 83, 83 extending downward from the left and right side surfaces of the horizontal portion 81 in a L-shaped cross section.

The base 80 is integrally formed of POM having appropriate rigidity and elasticity.
As shown in FIG. 1, a concave portion 84 that is recessed in a C-shape is formed at each lower end portion of the left and right bearing portions 83, respectively.
(Hook device: hook body)
As shown in FIG. 1, the hook body 90 has a hollow structure, and extends in a columnar shape from both left and right sides at one end located on the back side of the cabinet 20. It has a pair of left and right rotating shafts 91 and 91 to be fitted.

Further, as shown in FIG. 1, the other end of the hook body 90 located on the inner side 31 side of the door 30 extends toward the inner side 31 of the door 30 and bends upward in a key shape. A movable hook portion 92 is provided that is hooked on the fixed hook 42 of the hook receiver 40 from below.
The hook body 90 is integrally formed of POM having rigidity.
As shown in FIG. 3, the movable hook portion 92 is formed in a tapered shape so as to be easily caught on the fixed hook 42 of the hook receiver 40.

Further, as shown in FIG. 1, a rectangular parallelepiped weight 100 is embedded in the hollow inside of the hook body 90.
The weight 100 is made of, for example, brass, and is positioned below the rotating shaft 91 and on the far side of the cabinet 20 opposite to the fixed hook 42.
The weight 100 allows the center of gravity X ₁ of the hook body 90 to be positioned below the vertical line of the center O of the rotating shaft 91 as shown in FIG.

Further, the distance from the center O of the rotating shaft 91 to the center of gravity X ₁ of the hook body 90 is longer than the distance from the center O of the rotating shaft 91 to the hook base point Z ₁ of the movable hook portion 92 as shown in FIG. (OX ₁ << OZ ₁ ).
(Hook device: assembly method)
In order to assemble the hook device 50, as shown in FIG. 1, the left and right rotary shafts 91 of the hook body 90 are respectively aligned with the left and right recesses 64 of the base 80 and fitted using the elasticity of the base 80.

Thus, when the rotation shaft 91 is fitted into the recess 64, the recess 64 is restored by the elasticity of the resin, so that the rotation shaft 91 cannot be detached.
As shown in FIG. 1, the rotation shaft 91 is rotatably supported in the recess 84, and the hook body 90 is rotatably supported by the base 80.
As shown in FIG. 4, the hook device 70 assembled in this way screws its base 80 to the upper surface 21 of the cabinet 20.

Further, the base end portion 41 of the hook receiver 40 is screwed to the inner side surface 31 of the door 30 as shown in FIG.
At this time, the movable hook portion 92 of the hook body 90 is kept at a distance to be hooked on the fixed hook portion 42 of the hook receiver 40 as shown in FIG.
When the hook device 70 is fixed in this manner, the hook body 90 has a substantially horizontal state in which the movable hook portion 92 is separated downward from the fixed hook portion 42 of the hook receiver 40 as shown in FIG. To maintain.

At this time, as shown in FIG. 1, the rear end portion of the hook main body 90 abuts on the vertical portion 62 of the base 80, so that the rotation angle is regulated.
(how to use)
On the other hand, when a predetermined vibration or more is applied to the cabinet 20 due to an earthquake or the like, the hook body 90 swings around its rotating shaft 91 as shown in FIGS. 1 and 5, and the movable hook 92 is a fixed hook of the hook receiver 40. The part 42 is caught from below.

The operation at this time will be described with reference to FIG.
The angle a in FIG. 6 is an angle generated by the amplitude b of the hook body 90.
Distance c in FIG. 6, the hook base Z ₁ of the movable hook portion 92 of the hook body 90 is hooks base Z _1, the height of Z ₂ after moving the angle a.
At this time, as described above, when OX ₁ << OZ ₁ , the relationship is b << c.

For this reason, the movement speed of the hook base points Z ₁ and Z ₂ of the movable hook portion 92 of the hook body 90 is faster than the movement speed of the center of gravity X ₁ and X ₂ , and before the door 30 is moved by the distance d and opened. The movable hook portion 92 of the hook body 90 is hooked on the fixed hook portion 42 of the hook receiver 40.
For this reason, the movable hook 92 is prevented from being caught by the fixed hook 42 and opening the door 30 before the door 30 is opened due to an earthquake or the like.

And while the force which opens to the door 30 is acting, the state in which the movable hook part 92 was hooked on the fixed hook part 42 is maintained.
Thereafter, when the earthquake or the like stops and the opening force does not act on the door 30, the hook body 90 rotates downwardly around the rotation shaft 91 due to the weight of the weight 100 as shown in FIG.
For this reason, as shown in FIG. 1, the movable hook part 92 is separated from the fixed hook part 42, and the door 30 can be opened.
(Second embodiment)
7 and 8 respectively show a second example of the embodiment of the present invention.

FIG. 7 is a cross-sectional view of the seismic lock device, and FIG. 8 is a cross-sectional view corresponding to FIG.
The feature of the second embodiment is that the spring 110 is used in place of the weight 100 of the first embodiment described above so that the directions of the fixed hook portion 42 and the movable hook portion 92 can be reversed upside down. Is.

In the description of the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
(Third embodiment)
FIG. 9 shows a third example of the embodiment of the present invention.
FIG. 9 is a side view showing an example of use of the seismic lock device.

In the third embodiment, the seismic lock device 10 is used to prevent the chest 120 from falling down.
In the third embodiment, the hook receiver 40 is fixed to the chance 120 and the hook device 50 is fixed to the wall 130, but the reverse is also possible.
In addition, although the chest 120 was illustrated as a moving body, it is not restricted to this, Other furniture, electrical appliances, etc. may be sufficient. In addition, the wall 130 is illustrated as the fixed body, but the present invention is not limited thereto, and furniture and electrical appliances may be connected using the earthquake-resistant locking device 10 so as not to fall down.
(Fourth embodiment)
FIG. 10 shows a fourth example of the embodiment of the present invention.

FIG. 10 is a side view showing an example of use of the seismic lock device.
In the fourth embodiment, the seismic lock device 10 is used to prevent the luggage 150 from falling from the shelf 140.
In the third embodiment, the hook receiver 40 is fixed to the luggage 150 and the hook device 50 is fixed to the wall 160, but the reverse is also possible. Further, instead of the wall 160, the hook receiver 40 and the hook device 50 may be fixed to the shelf 140.

It is sectional drawing of an earthquake-resistant lock apparatus. It is a perspective view of a cabinet. It is a top view of a hook device. FIG. 4 is a side view of FIG. 3. FIG. 2 is a cross-sectional view corresponding to FIG. 1 and showing an operating state. FIG. 6 is an operation explanatory diagram corresponding to FIG. 5. It is sectional drawing of an earthquake-resistant locking device which shows 2nd Example. FIG. 7 is a cross-sectional view showing an operation state corresponding to FIG. 6. It is a side view which shows a 3rd Example and shows the usage example of an earthquake-resistant locking device. It is a side view which shows a 4th Example and shows the usage example of an earthquake-resistant locking device.

Explanation of symbols

10 Seismic lock device 20 Cabinet (fixed body)
21 Top 30 door (moving body)
31 Inner side 40 Hook holder
41 Base end 42 Fixed hook
50 hook device 60 screw
70 screw 80 base
81 Horizontal part 82 Vertical part
83 Bearing 84 Recess
90 Hook body 91 Rotating shaft
92 Movable hook part 100 weight (biasing means)
110 Spring (biasing means) 120
130 walls 140 shelves
150 luggage 160 walls

Claims (3)

A fixed body that is arranged in the vicinity of the fixed body and fixed to either one of the moving body that moves in a direction away from the fixed body when a predetermined vibration or more is applied, and is bent into a key shape A hook receiver having a hook portion;
A hook device fixed to one of the fixed body and the movable body, and hooked to a fixed hook portion of the hook receiver by the vibration of the predetermined level or more to prevent the movable body from being separated from the fixed body. Seismic lock device
The hook device is
A movable shaft that is positioned at one end and is rotatably provided on either the fixed body or the movable body, and a movable shaft that is positioned at the other end and bent into a key shape that is hooked on the fixed hook portion of the hook receiver. A hook body having a hook portion;
Provided in the hook body, eccentric with respect to the rotation axis;
Usually, the movable hook portion is biased in a direction away from the fixed hook portion of the hook receiver,
And a biasing means for allowing the movable hook portion to rotate about the rotation shaft and to be hooked on the fixed hook portion of the hook receiver when a predetermined vibration or more is applied. Seismic lock device for moving body The biasing means is composed of a weight,
The fixed hook portion of the hook receiver opens downward,
The movable hook portion of the hook body is opened opposite to the fixed hook portion,
The movable hook part is hooked from below on the fixed hook part of the hook receiver by rotating upward about the rotation axis,
The weight is fixed to a lower side of the hook body, and the weight of the weight allows the movable hook portion to rotate downward about the rotation shaft. Seismic lock device for moving body. The biasing means is composed of a spring,
The fixed hook portion of the hook receiver is opened upward,
The movable hook portion of the hook body is opened opposite to the fixed hook portion,
The movable hook portion is hooked from above on the fixed hook portion of the hook receiver by rotating downward about the rotation axis.
The seismic locking device for a moving body according to claim 1, wherein the movable hook portion is rotated upward about the rotation axis by a spring restoring force of the spring.

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