JP2013238093A - Earthquake-resistant safety device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an earthquake-resistant safety device which can reliably lock a slider, in a simple configuration, in occurrence of earthquake.SOLUTION: An earthquake-resistant safety device comprises a latch mechanism 2 disposed in a desk, for example, and a lock member 3 disposed in a drawer provided in the desk. The latch mechanism includes a casing 5, a hook member 6 disposed in the casing 5 so as to be pivoted, and a lock piece 15 provided in the hook member 6. Furthermore, the lock member 3 includes an engaging recess 17. While no earthquake occurs, when the drawer is slid within the desk, the lock piece 15 is moved within the engaging recess 17. When an earthquake occurs, the hook member 6 is pivoted by shaking of the earthquake and the lock piece 15 is engaged with the lock member 3, such that movement of the drawer is locked.

Description

  The present invention relates to a pulling seismic safety device, and more particularly to a seismic safety device that regulates sliding movement of a slide body relative to a fixed body when an earthquake occurs.

  2. Description of the Related Art Conventionally, an earthquake-resistant safety device that locks (fixes) a slide member so that the slide member such as a drawer or a sliding door does not jump out of a storage body (fixed body) such as a desk or a basket when an earthquake occurs is known. This type of seismic safety device has a latch mechanism provided on the storage body side and a lock member provided on the slide member side.

  The latch mechanism includes a hook member provided in the latch case so as to be able to advance and retreat, a metal sphere provided in the latch case so as to be able to roll. The hook member has moved to a position that has retreated from the movement locus on which the slide member slides in a state where no earthquake has occurred. Therefore, the slide member can freely slide (move) in a state where no earthquake occurs.

  However, when an earthquake occurs, the metal sphere rolls due to the vibration of the earthquake and collides with the hook member, thereby moving the hook member into the movement locus of the slide member. Thereby, the slide operation of the slide member is regulated by the hook member, and the slide member can be prevented from jumping out of the storage body. (Patent Document 1).

JP 2010-270517 A

  In the conventional seismic safety device, the sphere is first displaced by the vibration of the earthquake, and then the hook member is moved by being biased by the displaced sphere, whereby the slide member is locked. Therefore, there is a problem that the structure is complicated and the product cost increases.

  The present invention has been made in view of the above points, and an object of the present invention is to provide an earthquake-resistant safety device that can reliably lock a slide body when an earthquake occurs with a simple configuration.

From the first point of view, the above problem is
A seismic safety device that is attached to a structure having a fixed body and a slide body that slides relative to the fixed body and locks the movement of the slide body relative to the fixed body when an earthquake occurs
A base fixed to one of the fixed body or the slide body, a hook member disposed on the base so as to be swingable and provided with a weight, and a lock piece provided on the hook member. A latch mechanism having;
A locking member having an engagement portion fixed to either the fixed body or the slide body and configured to be able to engage with the lock piece;
In normal times, the slide body slides in a recess formed in the lock piece,
When an earthquake occurs, the hook member swings, the lock piece engages with the lock member, and the movement of the slide body is locked. it can.

  According to the disclosed seismic safety device, the hook member that restricts the movement of the lock member due to the occurrence of an earthquake immediately swings, so that the slide body can be locked immediately. Further, since the weight is integrally provided on the hook member, the configuration of the seismic safety device can be simplified.

FIG. 1 is a perspective view of an earthquake-resistant safety device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the seismic safety device according to the embodiment of the present invention. FIG. 3A is a diagram showing a state where an earthquake is not generated in the seismic safety device which is one embodiment of the present invention, and FIGS. 3B and 3C are seismic resistance which is one embodiment of the present invention. It is a figure which shows the state which the earthquake of the safety device has generate | occur | produced. FIG. 4 is a perspective view showing an example in which the seismic safety device according to one embodiment of the present invention is applied to a drawer. FIG. 5 (A) is a partially enlarged plan view showing an example in which the seismic safety device according to one embodiment of the present invention is applied to a drawer, and FIG. 5 (B) is an A1 arrow view in FIG. 5 (A). FIG. 5C is a view taken in the direction of arrow B1 in FIG. FIG. 6 is a perspective view showing an example in which the seismic safety device according to one embodiment of the present invention is applied to a sliding door. FIG. 7 is a partially enlarged plan view showing an example in which the seismic safety device according to one embodiment of the present invention is applied to a sliding door. 8A is a view taken along arrow B2 in FIG. 7, FIG. 8B is a view taken along arrow A2 in FIG. 7, and FIG. 8C is a view taken along arrow B3 in FIG. D) is an A3 arrow view in FIG.

  Next, embodiments of the present invention will be described with reference to the drawings.

  1 to 3 are diagrams for explaining the configuration and operation of an earthquake-resistant safety device 1 according to an embodiment of the present invention. The seismic safety device 1 is attached to a structure having something that pops out when an earthquake occurs, such as a desk, and has a function of preventing the drawer (sliding body) from jumping out from the desk body (fixed body) when an earthquake occurs. .

  The seismic safety device 1 includes a latch mechanism 2 and a lock member 3. In the seismic safety device 1, when the latch mechanism 2 is provided on the fixed body, the lock member 3 is provided on the slide body. Conversely, when the latch mechanism 2 is provided on the slide body, the lock member 3 is provided on the fixed body.

  The latch mechanism 2 includes a housing 5, a hook member 6, a support shaft 7, and the like. The housing 5 corresponds to a base described in the claims. The housing 5 has a rectangular shape, and is configured by combining the housing half 5A and the housing half 5B.

  In the present embodiment, the housing 5 is formed of a resin material. However, the material of the housing 5 is not limited to resin, and a material having higher strength than resin such as metal or ceramic may be selected.

  One housing half 5A is formed with a shaft hole 9A, a long hole 10, and a mounting hole 11A. The other housing half 5B has a shaft hole 9B and a mounting hole 11B.

  The shaft hole 9 </ b> A and the shaft hole 9 </ b> B are holes to which a support shaft 7 that supports the hook member 6 so as to be swingable is mounted. That is, the support shaft 7 is supported by the housing half 5A by inserting one end portion thereof into the shaft hole 9A, and is supported by the housing half body 5B by inserting the other end portion thereof into the shaft hole 9B.

  The long hole 10 is a hole through which a lock piece 15 formed in the hook member 6 described later moves. The long hole 10 has a circular shape centered on the shaft hole 9A, and its formation range is about 90 °. Therefore, in this embodiment, the lock piece 15 can move within a range of 90 ° within the long hole 10.

  The attachment hole 11A is a hole through which a fixing screw (not shown) for fixing the housing 5 to a fixing body described later is inserted. In the present embodiment, a pair of mounting holes 11A and 11B are formed on a diagonal line.

  The housing 5A and the housing half 5B configured as described above are bonded and integrated by an adhesive to form the housing 5. In this integrated state, a space portion is formed inside the housing 5. Is done. The hook member 6 is slidably mounted in the space.

  The hook member 6 includes a weight mounting portion 12, a weight 13, a shaft hole 14, a lock piece 15 (corresponding to an engagement portion described in claims), and the like. The weight mounting portion 12 is a hole formed in the hook member 6, and is disposed between the formation position of the shaft hole 14 and the formation position of the lock piece 15. A weight 13 is mounted inside the weight mounting portion 12.

  The weight 13 is formed of a disk-shaped metal in this embodiment. The weight 13 is fixed to the weight mounting portion 12 using an adhesive.

  The shaft hole 14 is a hole through which the support shaft 7 supported by the pair of housing halves 5A and 5B is inserted. By inserting the support shaft 7 through the shaft hole 14, the hook member 6 is supported by the support shaft 7 so as to be swingable.

  The weight 13 is disposed at a position shifted with respect to the shaft hole 14. For this reason, in a normal state (a state in which no earthquake occurs), the hook member 6 is stabilized (stationary) in a state where the weight 13 is positioned vertically below the shaft hole 14.

  The lock piece 15 is formed so as to protrude in a direction perpendicular to the vertical direction. As shown in FIG. 1, the lock piece 15 is configured to protrude from a long hole 10 formed in the housing half 5 </ b> A when the hook member 6 is attached to the housing 5.

  As described above, since the long hole 10 is formed in a range of about 90 ° around the shaft hole 9A, the lock piece 15 can also swing within the long hole 10 in a range of about 90 °. Yes. However, the weight 13 is provided on the hook member 6 as described above. For this reason, the lock piece 15 is in a state (state shown in FIG. 1) located at the lowermost portion of the long hole 10 in a normal state.

  Further, the ease of swinging of the hook member 6 includes the weight of the weight 13, the distance between the support shaft 7 and the weight 13, the weight of the hook member main body 6a (base), the hook member 6 and the housing half 5A, It can be adjusted by friction with 5B, friction between the support shaft 7 and the inner wall of the shaft hole 14 or the like (these various adjustable items are called adjustment parameters). In the present embodiment, the various values described above are adjusted so that the hook member 6 does not swing during normal times and the hook member 6 swings only when an earthquake occurs.

  In this embodiment, the lock member 3 has a flat plate shape made of metal. The lock member 3 has an engagement recess 17 and a mounting hole 18.

  The engagement recess 17 is configured such that the lock piece 15 of the latch mechanism 2 moves inside the slide member when the slide member moves relative to the fixed member in a normal state. The mounting hole 18 is a hole through which a fixing screw is inserted when the lock member 3 is fixed to the fixed body or the slide body.

  Next, the operation of the seismic safety device 1 configured as described above will be described with reference to FIG.

  The figure shows an example in which the latch mechanism 2 is fixed to a fixed body (for example, a desk body) and the lock member 3 is attached to a slide body (for example, a drawer). Therefore, in the example shown in FIG. 3, the lock member 3 moves relative to the latch mechanism 2.

  FIG. 3A shows a normal state where no earthquake occurs. In the normal state, an external force due to an earthquake is not applied to the hook member 6. Therefore, the hook member 6 is stationary with the weight 13 positioned vertically below the shaft hole 14. Therefore, the lock piece 15 formed on the hook member 6 is in a horizontal state.

  As for the attachment position of the latch mechanism 2 to the fixed body and the attachment position of the lock member 3 to the slide body, when the slide body slides relative to the fixed body, the lock piece 15 in the normal state is formed on the lock member 3. It is set so as to be positioned on the movement locus of the engaging recess 17.

  Therefore, when the lock member 3 slides in the normal state, the lock piece 15 relatively enters and moves into the engagement recess 17 along with this movement.

  As described above, the lock piece 15 and the lock member 3 are not engaged with each other in a normal state, and therefore the movement of the lock member 3 is not restricted (locked) by the latch mechanism 2. Therefore, in a normal time, the slide body can freely slide with respect to the fixed body.

  On the other hand, FIGS. 3A and 3B show a state in which an earthquake has occurred. When an earthquake occurs, the earthquake vibration is transmitted to the hook member 6. As described above, the hook member 6 is swingably disposed in the housing 5, and the various adjustment parameters described above are set so as to allow the hook member 6 to swing when an earthquake occurs.

  Therefore, when the earthquake occurs, the hook member 6 starts to swing as shown in FIG. By this swing, the lock piece 15 provided on the hook member 6 also swings around the support shaft 7 and moves in the long hole 10 formed in the housing half 5A.

  As described above, when the hook member 6 swings, the lock piece 15 is displaced from the movement locus of the engagement recess 17. When the lock member 3 slides in this displaced state, the engagement recess 17 does not pass through the lock piece 15, and the lock member 3 engages (collises) with the lock piece 15.

  At this time, as shown in FIG. 3B, even when the swing of the hook member 6 is small, the lock member 3 is reliably engaged with the lock piece 15. After the engagement, the hook member 6 is oscillated and urged as the lock member 3 slides, and the hook member 6 further oscillates (rotates).

  As shown in FIG. 3C, in a state where the lock piece 15 and the lock member 3 are substantially parallel (that is, a state where the hook member 6 is rotated by 90 ° with respect to the vertical direction), Movement in the sliding direction (movement in the direction indicated by the arrow in FIG. 3A) is locked. Thereby, when an earthquake occurs, the movement of the slide body relative to the fixed body can be reliably locked by the earthquake-proof safety device 1, and the slide body can be prevented from jumping out from the fixed body.

  Further, when the seismic intensity of the earthquake is large, it is conceivable that the lock member 3 collides with the hook member 6 with a strong force. However, when swinging in the housing 5, both surfaces of the hook member 6 swing while being guided by the inner wall of the housing 5 (housing halves 5A and 5B). Thus, since the hook member 6 swings while being held on the inner walls of the housing halves 5A and 5B, even if a large force is applied to the hook member 6 via the lock member 3, the hook member 6 is The slide body can be reliably prevented from popping out without being damaged.

  4 to 8 show actual application examples of the seismic safety device 1 configured as described above.

  4 and 5 show an embodiment in which the seismic safety device 1 is applied to the lock of the drawer 20. In this embodiment, the latch mechanism 2 is attached to the desk 22 (fixed body), and the lock member 3 is attached to the drawer 20 (slide body).

  Since the earthquake-resistant safety device 1 according to the present embodiment has a very simple configuration in which the latch mechanism 2 is disposed in the housing 5 so that the hook member 6 can swing, the thickness can be reduced. Moreover, since the lock member 3 is also a flat plate shape, the freedom degree is high at the time of the attachment. Therefore, even if it is a slight gap between the drawer 20 and the desk 22, the seismic safety device 1 can be disposed in this gap.

  Furthermore, the seismic safety device 1 has a reversible configuration by being reversed left and right. Therefore, as shown in FIG. 4, the same latch mechanism 2 and lock member 3 can be used even when the seismic safety device 1 is provided on both sides of the drawer 20.

  On the other hand, FIG. 6 thru | or FIG. 8 has shown the Example which applied the seismic safety device 1 to the lock | rock of the sliding doors 30A and 30B provided in the storage body 31. FIG.

  In the case of the sliding doors 30A and 30B, as shown in FIGS. 6 and 7, the sliding door 30A and the sliding door 30B are configured to slide in parallel. That is, the slide locus of the electrode 30 and the slide locus of the sliding door 30B are configured to be parallel.

  On the other hand, it is desirable that the latch mechanism 2 is disposed close to the sliding doors 30A and 30B in order to securely lock the movement of the sliding doors 30A and 30B when an earthquake occurs. For this reason, in this embodiment, as shown in FIG. 7, the pair of latch mechanisms 2 that respectively lock the two sliding doors 30 and 30B are arranged so as to be close to the movement locus of the sliding door 30A arranged on the back side.

  At this time, the latch mechanism 2 needs to be arranged in parallel to the sliding doors 30A and 30B. Therefore, the latch mechanism 2 is attached to the holder 40, and the holder 40 is fixed to the housing 31 so that the latch mechanism 2 and the sliding doors 30A and 30B are parallel to each other.

  Furthermore, the separation distance between the latch mechanism 2 and the sliding door 30B becomes longer than the separation distance between the sliding door 30A and the latch mechanism 2. For this reason, lock members 3A and 3B having different extension lengths are prepared so that each lock member 3A and 3B can be engaged with the latch mechanism 2.

  With the above configuration, the movement of the sliding doors 30A and 30B can be restricted when an earthquake occurs.

  The embodiment shown in FIGS. 4 to 8 is merely an example of application of the seismic safety device 1, and is not limited to this. Various types of preventing the slide body from popping out when an earthquake occurs are shown. It can be applied to things.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments described above, and various modifications are possible within the scope of the gist of the present invention described in the claims. It can be modified and changed.

DESCRIPTION OF SYMBOLS 1 Seismic safety device 2 Latch mechanism 3, 3A, 3B Lock member 5 Case 5A, 5B Case half 6 Hook member 7 Support shaft 9A, 9B, 14 Shaft hole 10 Long hole 11A, 11B Mounting hole 12 Weight mounting part 13 Weight 15 Locking piece 17 Engaging recess 18 Mounting hole 20 Drawer 22 Desk 30A, 30B Sliding door 31 Cabinet 40 Holder 41 Fixing part 42 Standing part

Claims (3)

A seismic safety device that is attached to a structure having a fixed body and a slide body that slides relative to the fixed body, and that locks the movement of the slide body relative to the fixed body when an earthquake occurs,
A base fixed to one of the fixed body or the slide body, a hook member disposed on the base so as to be swingable and provided with a weight, and a lock piece provided on the hook member. A latch mechanism having;
A locking member having an engagement portion fixed to either the fixed body or the slide body and configured to be able to engage with the lock piece;
In normal times, the slide body slides in a recess formed in the lock piece,
An earthquake-resistant safety device characterized in that, when an earthquake occurs, the hook member swings and the lock piece engages with the lock member to lock the movement of the slide body. The base is a housing for storing the hook member;
The seismic safety device according to claim 1, wherein the hook member is swingably supported by an inner wall of the housing. The seismic safety device according to claim 1 or 2, wherein the hook member is configured to be movable within a range of 90 degrees from a vertical direction.

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