JP3841890B2 - Seismic lock device for moving objects - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
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.
[0002]
[Prior art]
The applicant of the present application has proposed that a door is locked by utilizing the fact that a spherical weight falls during vibration (Japanese Patent Application No. 7-222831).
The lock device maintains the door locked state when the spherical weight is dropped due to vibration.
[0003]
For this reason, when opening the door, an unlocking operation for raising the weight to the original position is required.
[0004]
[Problems to be solved by the invention]
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.
[0005]
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.
[0006]
In addition to this, the invention according to claim 1 is characterized in that the movable hook is moved before the inner surface of the moving body facing the end face of the fixed body at a predetermined distance from the end face collides with the end face due to an earthquake or the like. Since the portion rotates about the rotation axis and is hooked on the fixed hook portion, the door can be prevented from opening.
Further, in the first aspect of the present invention, after the vibration is stopped, the movable hook portion rotates back about the rotation shaft and is separated from the fixed hook portion by the biasing means, so that the door can be opened. It can be.
(Claim 2)
The invention described in claim 2 has the following object in addition to the object of the invention described in claim 1 described above.
[0007]
That is, the invention according to claim 2 is configured such that the weight can be used as the biasing means.
(Claim 3)
The third aspect of the invention has the following object in addition to the object of the first aspect of the invention.
[0008]
That is, the invention described in claim 3 is configured such that a spring can be used as the biasing means.
(Claim 4)
The invention according to claim 4 has the following object in addition to the object of the invention according to any one of claims 1 to 3.
[0009]
That is, the invention described in claim 4 can be used for a door.
[0010]
[Means for Solving the Problems]
(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.
[0011]
That is, for example, as shown in FIG. 1, the hook device (50) includes a hook body (90) and an urging means (for example, a weight 100).
For example, as shown in FIG. 1, the hook body (90) includes a rotation shaft (91) and a movable hook portion (92).
For example, as shown in FIG. 1, the rotating shaft (91) is located at one end of the hook body (90), and either the fixed body (for example, the cabinet 20) or the movable body (for example, the door 30) (for example, the cabinet). 20) is provided rotatably.
[0012]
As an example of the fixed body, the cabinet (20) shown in FIG. 2 is illustrated, but the present invention is not limited to this, and as shown in FIGS. 9 and 10, walls (130, 160) of houses, ships, cars, etc. may be used. .
Moreover, although the door (30) shown, for example in FIG. 2 was illustrated as a moving body, it is not restricted to this, As shown in FIG. 9, furniture, such as a dresser (120), or a shelf as shown in FIG. It may be a package (150) placed in (140).
[0013]
For example, as shown in FIG. 1, the movable hook portion (92) is located at the other end portion of the hook body (90) and is bent into a key shape that is hooked on the fixed hook portion (42) of the hook receiver (40). Yes.
For example, as shown in FIG. 1, the urging means (for example, the weight 100) is provided on the hook body (90) and is eccentric with respect to the rotation shaft (91).
[0014]
The biasing means (for example, weight 100) normally biases the movable hook portion (92) in a direction away from the fixed hook portion (42) of the hook receiver (40) as shown in FIG. Yes.
On the other hand, in the biasing means (for example, weight 100), as shown in FIG. 5, for example, when a predetermined vibration or more is applied, the movable hook portion (92) rotates around the rotation shaft (91). The hook is allowed to be caught on the fixed hook portion (42) of the hook receiver (40).
[0015]
As the urging means, for example, the weight (80) shown in FIG. 1 is illustrated, but the present invention is not limited to this, and a spring (110) shown in FIG. 7 may be used.
In addition to this, first, the center of gravity ( X ₁ ) of the hook body (90) is positioned on the vertical line of the center ( O ) of the rotation shaft (91) as shown in FIG .
Second, the distance to the center of gravity (X ₁₎ of the hook body from the center (O) of the rotating shaft (91) (90), for example, as shown in FIG. 1, from the center of the rotation axis (91) (O) It is set to be shorter than the distance to the hook base point of the movable hook portion (92) (Z _1).
[0016]
Thirdly, for example, as shown in FIG. 6, the fixed member (e.g., a cabinet 20) end face with a predetermined distance (d) mobile facing away (e.g. door 30) inner surface (31), such as an earthquake The movable hook portion (92) rotates about the rotation shaft (91) and is hooked on the fixed hook portion (42) before moving the distance (d) after colliding with the end face by vibration .
Fourth, after the vibration is stopped, for example, as shown in FIG. 1 , the movable hook portion (92) rotates around the rotation shaft (91) by the urging means (for example, weight 80 ) to rotate the fixed hook portion ( Keep away from 42) .
(Claim 2)
The invention described in claim 2 is characterized by the following three points in addition to the characteristics of the invention described in claim 1 described above.
[0017]
First, the urging means comprises a weight (80) as shown in FIG. 1, for example.
Secondly, the fixed hook portion (42) of the hook receiver (40) is open downward as shown in FIG. 1, for example.
Further, the movable hook portion (92) of the hook body (90) is opened facing the fixed hook portion (42) as shown in FIG. 1, for example.
[0018]
Then, as shown in FIG. 5, for example, the movable hook portion (92) is rotated upward about the rotating shaft (91), so that the fixed hook portion (42) of the hook receiver (40) is rotated from below. Get caught.
Third, the weight (80) is fixed to the lower side of the hook body (90) as shown in FIG. 1, for example.
[0019]
Then, due to the weight of the weight (80), for example, as shown in FIG. 1, the movable hook portion (92) rotates downward about the rotation shaft (91).
(Claim 3)
The invention described in claim 3 is characterized by the following three points in addition to the features of the invention described in claim 1 described above.
[0020]
First, the urging means is constituted by a spring (110) as shown in FIG. 7, for example.
Second, the fixed hook portion (42) of the hook receiver (40) is opened upward as shown in FIG. 7, for example.
Further, the movable hook portion (92) of the hook body (90) is opened facing the fixed hook portion (42) as shown in FIG. 7, for example.
[0021]
Then, as shown in FIG. 8, for example, the movable hook portion (92) rotates downward about the rotation shaft (91), so that the fixed hook portion (42) of the hook receiver (40) is rotated from above. I try to get caught.
Third, due to the spring restoring force of the spring (110), for example, as shown in FIG. 7, the movable hook portion (92) rotates upward about the rotation shaft (91).
[0022]
In addition, although the coil spring was illustrated as the spring (110), for example, it is not limited to this, and the leaf spring and the hook body (90) itself may be formed of an elastic member.
(Claim 4)
The invention described in claim 4 is characterized by the following four points in addition to the characteristics of the invention described in any one of claims 1 to 3.
[0023]
First, the fixed body is composed of a cabinet (20) as shown in FIG. 2, for example.
Secondly, as shown in FIG. 2, for example, the moving body includes a door (30) attached to the cabinet (20) so as to be opened and closed.
Third, the hook receiver (40) is fixed to the inside of the door (30) as shown in FIG. 1, for example.
[0024]
Fourthly, the rotating shaft (91) of the hook body (90) is fixed to the inside of the cabinet (20) as shown in FIG. 1, for example.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
(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.
[0026]
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.
[0027]
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.
[0028]
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.
[0029]
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.
[0030]
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.
[0031]
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.
[0032]
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.
[0033]
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.
[0034]
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.
[0035]
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.
[0036]
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 .
[0037]
For this reason, the movement speeds of the hook base points Z ₁ and Z ₂ of the movable hook portion 92 of the hook body 90 are faster than the movement speeds of the centers of gravity X ₁ and X ₂ , and the door 30 moves by a distance d (d >> b). Prior to opening, the movable hook portion 92 of the hook body 90 is hooked on the fixed hook portion 42 of the hook receiver 40.
Therefore, the movable hook portion 92 is caught on the fixed hook portion 42 before the door 30 is opened due to an earthquake or the like, thereby preventing the door 30 from being opened.
[0038]
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.
[0039]
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.
[0040]
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.
[0041]
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.
[0042]
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.
[0043]
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.
[0044]
【The invention's effect】
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.
[0045]
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 movable hook is disposed before the inner surface of the moving body facing the end face of the fixed body at a predetermined distance from the end face collides with the end face due to an earthquake or the like and then moves the distance. Since the portion rotates about the rotation axis and is hooked on the fixed hook portion, the door can be prevented from opening.
[0046]
In addition, according to the first aspect of the present invention, after the vibration is stopped, the urging means rotates the movable hook portion around the rotation shaft so as to be separated from the fixed hook portion. Can be made possible.
(Claim 2)
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the following effect can be obtained.
[0047]
That is, according to the second aspect of the invention, the weight 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, the following effect can be obtained.
[0048]
That is, according to the third aspect of the present invention, the spring can be used as the biasing means.
(Claim 4)
According to invention of Claim 4, in addition to the effect of the invention of any one of Claims 1-3, there exist the following effects.
[0049]
That is, according to the invention described in claim 4, it can be used for a door.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an earthquake-resistant locking device.
FIG. 2 is a perspective view of a cabinet.
FIG. 3 is a plan view of the hook device.
4 is a side view of FIG. 3. FIG.
FIG. 5 is a cross-sectional view corresponding to FIG. 1 and showing an operation state.
FIG. 6 is an explanatory diagram corresponding to FIG. 5;
FIG. 7 is a cross-sectional view of the seismic lock device according to the second embodiment.
FIG. 8 is a sectional view corresponding to FIG. 6 and showing an operating state.
FIG. 9 is a side view showing an example of use of the seismic lock device according to the third embodiment.
FIG. 10 is a side view showing an example of use of the seismic lock device according to the fourth embodiment.
[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 (4)

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,
An urging means for allowing the movable hook portion to rotate around the rotating shaft and to be hooked on the fixed hook portion of the hook receiver when a predetermined vibration or more is applied;
The center of gravity of the hook body is positioned on the vertical line of the center of the rotation axis,
The distance from the center of the rotating shaft to the center of gravity of the hook body is set shorter than the distance from the center of the rotating shaft to the hook base point of the movable hook part,
The movable hook portion is centered on the rotation axis before the inner surface of the movable body facing the end surface of the fixed body at a predetermined distance from the end surface after collision with the end surface due to vibration such as an earthquake. Rotate and catch on the fixed hook part,
A seismic locking device for a moving body, wherein after the vibration is stopped, the movable hook portion is rotated about the rotation shaft and separated from the fixed hook portion by the biasing means. 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,
2. The weight is fixed to a lower side of the hook main body, and the movable hook portion rotates downward about the rotation shaft by the weight of the weight. 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. The fixed body is composed of a cabinet,
The moving body is composed of a door attached to the cabinet so as to be openable and closable,
The hook receiver is fixed to the inside of the door;
The earthquake-resistant locking device for a moving body according to any one of claims 1 to 3, wherein the rotation shaft of the hook body is pivotally fixed inside the cabinet .

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