JP2019015041A - Stopping device with safety mechanism - Google Patents

Abstract

To provide a stopping device with a safety mechanism that can securely stops a sliding door etc., even when the weight of the sliding door etc., is heavy, and also can speedily open and close the sliding door etc., without any need for special operation, requires no trouble for attachment, and can have device constitution simplified.SOLUTION: A movable body moves and an end of a lever 11 engages the movable body, so that the lever 11 moves in a movable direction of the movable body against energizing force of a first elastic member 5. A first rack 3 therefore also moves together with the lever 11 and external force applied to the lever 11 is transmitted to an infinite-angle rotary damper 7 meshing with the first rack 3. When the lever 11 moves at a speed exceeding a predetermined speed, the external force is reduced by the infinite-angle rotary damper 7 according to the speed, and transmitted to a second rack 4. The second rack 4 therefore slides up to an intersection position against energizing force of a second elastic member 6, and the lever 11 strikes on a stopper 12 at the intersection position so as to force the movable body to stop moving.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a stop device with a safety mechanism that safely stops the movement of a movable body when the movable body is at a predetermined relative position with respect to a fixed body.

  Conventionally, as this type of stop device with a safety mechanism, for example, there is a finger pinching prevention mechanism at the door tip of a sliding door disclosed in Patent Document 1. This finger pinching prevention mechanism includes an advance / retreat operating body provided on the sash side and a permanent magnet provided on the vertical frame of the sash frame. The advancing / retracting operation body is composed of upper and lower links, and one end portions thereof are pivotally connected by a first pin. The other end of the lower link is pivotally connected to the sash side by a second pin, and the first shaft portion provided on the upper link is inserted and held in an elongated hole provided on the sash side. As the sash is opened, the permanent magnet attracts the pivotal portion between the upper and lower links, and the advance / retreat operating body advances toward the vertical frame. A reverse stopper is provided behind the upper and lower links, and the reverse stopper prevents the advancing / retracting body from moving backward. When closing an open sash, even if a human finger is present between the sash door and the vertical frame, an advancing / retracting body that has advanced to the side of the vertical frame is interposed between the sash door and the vertical frame. Thus, the occurrence of a pinch accident can be prevented. When the sash is fully closed, the reverse stopper is operated to move the advancing / retracting body backward to the sash side.

  Further, as a conventional stop device with a safety mechanism of this type, there is also a reduction gear device disclosed in Patent Document 2. The reduction gear is provided in a door pulley device attached to the sliding door, and the sliding door moves along a guide rail provided in the lower frame. A concave step is provided on the guide rail in the vicinity of the vertical frame located at a predetermined distance from the vertical frame of the guide rail. The door pulley apparatus is configured by attaching a main door to a housing, and a gear that meshes with a rotary damper attached to an adapter is formed on the outer periphery of the main door. The adapter is provided with a roller that slides on the guide rail. When the main door cart passes through the section near the vertical frame, the position of the roller is lowered by the concave step, and the adapter rotates. When the adapter rotates, the rotary damper meshes with the main door and the rotation of the main door is braked. For this reason, when the sliding door is closed to some extent, the sliding door is gradually decelerated immediately before coming into contact with the vertical frame, the opening / closing force is increased, and the sliding door is prevented from being rebounded or pinched between fingers.

JP 2012-225105 A JP 7-139241 A

  However, the stop device disclosed in the above-mentioned conventional Patent Document 1 needs to operate the retreat stopper each time the sash is completely closed to retreat the advancing / retreating operation body toward the sash. That is, the conventional stop device disclosed in Patent Document 1 has a complicated switching operation from the operating state of the advancing / retreating operation body to the operation releasing state, and is difficult to operate smoothly.

  Moreover, when the weight of a sliding door is large like the sweeping sash which consists of metals, such as the said aluminum, the stop apparatus disclosed by the said conventional patent document 2 cannot make the braking effect of a sliding door effective by a rotary damper.

  In addition, each of the stopping devices disclosed in the above-mentioned conventional Patent Document 1 and Patent Document 2 is both on the movable side where a sash, a sliding door, etc. are provided and on the fixed side where a vertical frame, a lower frame, etc. are provided. Equipment installation and construction is required. For this reason, it takes time and effort for the installation, and the device configuration cannot be simplified.

The present invention has been made to solve such problems,
In a stopping device that stops the movement of the movable body when the movable body is at a predetermined relative position with respect to the fixed body,
A housing attached to a fixed or movable body;
A first rack provided in the housing so as to be slidable in a movable direction of the movable body;
A second rack provided in the housing so as to be slidable to an intersecting position intersecting the sliding direction of the first rack in an orthogonal direction orthogonal to the movable direction;
A first elastic member that urges the first rack toward a first rack initial position that is farther from the second rack than the intersection position;
A second elastic member for urging the second rack toward the second rack initial position away from the intersection position;
A lever that is engaged with the movable body or the fixed body protrudes from the housing and is provided separately from the first rack or integrally with the first rack at the end of the first rack on the second rack side;
When a moving speed of a lever that is provided between the first rack and the second rack and moves by an external force that slides the first rack toward the crossing position against the urging force of the first elastic member exceeds a predetermined speed. The external force is attenuated according to the speed and transmitted from the first rack to the second rack, and the second rack resists the urging force of the second elastic member when the first rack slides to the crossing position by the external force. An external force transmission mechanism that transmits a force that slides the vehicle to the cross position to the second rack;
The second rack at a position where the second rack is located at the intersecting position and the lever collides is provided with a stopper provided separately from the second rack or integrally with the second rack.

  According to this configuration, when the movable body moves relative to the fixed body and the movable body is positioned at a predetermined relative position with respect to the fixed body, the lever protrudes from the fixed body or the housing attached to the movable body. The end of the is engaged with the movable body or the fixed body. Furthermore, when the movable body moves relative to the fixed body, the lever moves in the movable direction of the movable body against the biasing force of the first elastic member. Accordingly, the first rack provided on the lever also moves together with the lever, and the external force applied to the lever is transmitted from the first rack to the external force transmission mechanism. When the moving speed of the lever that is moved by the external force exceeds a predetermined speed, the external force is attenuated according to the speed by the external force transmission mechanism and transmitted from the first rack to the second rack. Therefore, the second rack slides to the cross position against the urging force of the second elastic member. As a result, at the crossing position, the lever provided at the end of the first rack on the second rack side and the stopper provided on the second rack collide, and the movement of the movable body is forcibly stopped.

  When the stop device with a safety mechanism according to this configuration is used for stopping a sliding door, etc., and the movable body is a sliding frame, etc., and the fixed body is a support frame that slidably supports the sliding door, etc., the lever immediately before the sliding door is closed By attaching a stop device to the relative position where the end of the door engages with the support frame or sliding door, the sliding door is braked by the external force transmission mechanism just before closing, and then forcibly stopped by the lever and stopper. It is done. Therefore, when the sliding door is closed at a high speed, a predetermined gap is formed in the door tip such as the sliding door at a predetermined position before the sliding door is closed due to the collision between the lever and the stopper without depending on the external force transmission mechanism. Secure and stop reliably. For this reason, even when the weight of the sliding door or the like is large and the speed is increased, the sliding door or the like is surely stopped.

  Further, after the movable body stops, if the lever is moved in the same direction by an external force at a movement speed that does not exceed a predetermined speed, the external force is not transmitted from the first rack to the second rack by the external force transmission mechanism. The second rack is returned to the initial position of the second rack by the second elastic member, and the first rack moves beyond the crossing position against the urging force of the first elastic member. Therefore, the movable body moves in the same direction as the direction before stopping.

  For this reason, when the stop device with a safety mechanism according to this configuration is used for stopping a sliding door or the like, when the sliding door or the like is closed after the sliding door or the like is stopped, the conventional operating state of the advancing / retracting operation body is changed to the operation releasing state. There is no need to perform a special operation such as switching operation. Therefore, the stop device with a safety mechanism according to this configuration operates smoothly, and can quickly open and close the sliding door and the like.

  Moreover, the stop device with a safety mechanism according to this configuration exhibits its function when the casing is attached to one of the fixed body and the movable body. For this reason, unlike the conventional stop device, it is not necessary to install or install the device on both the movable side where the sash and the sliding door are provided and the fixed side where the vertical frame and the lower frame are provided. For this reason, it is possible to simplify the configuration of the apparatus without the need for attaching the stop device.

  Further, according to the present invention, the external force transmission mechanism includes an input side gear that meshes with the first rack, an output side gear that transmits an external force that is input to the input side gear, and an input side gear and an output side gear. It comprises a rotary damper provided with the viscous fluid provided in.

  According to this configuration, the external force applied to the external force transmission mechanism from the end of the lever via the first rack is transmitted to the input side gear, and the input side gear rotates according to the moving speed of the lever. The rotational torque generated in the input side gear is attenuated by the shearing resistance generated in accordance with the magnitude of the rotational speed of the input side gear in the viscous fluid provided in the rotary damper, and the movement of the movable body is braked. At this time, when the moving speed of the lever is slow and the rotational speed of the input side gear is low, the shear resistance of the viscous fluid does not increase, so that the rotational torque is not transmitted from the input side gear to the output side gear. Therefore, the second rack remains at the initial position of the second rack. On the other hand, when the moving speed of the lever exceeds a predetermined speed and the rotational speed of the input side gear increases, the shear resistance of the viscous fluid increases and increases, so the rotational torque from the input side gear to the output side gear increases. Be transmitted. Therefore, the second rack to which the rotational torque of the output side gear is transmitted moves to the crossing position against the biasing force of the second elastic member, and the lever collides with the stopper to stop the movement of the movable body.

  Further, according to the present invention, the external force transmission mechanism includes an input side gear that meshes with the first rack, an output side gear that transmits an external force that is input to the input side gear, and an input side gear and an output side gear. It is characterized by comprising a centrifugal clutch or a centrifugal brake.

  Also in this configuration, the external force applied to the external force transmission mechanism from the end of the lever through the first rack is transmitted to the input side gear, and the input side gear rotates according to the moving speed of the lever. The rotational torque generated in the input side gear is attenuated by the frictional resistance generated when the shoe in the centrifugal clutch or centrifugal brake is pressed against the drum according to the rotational speed of the input side gear, and the movement of the movable body is braked. At this time, when the moving speed of the lever is slow and the rotational speed of the input side gear is low, the frictional resistance between the shoe and the drum does not increase, so that the rotational torque is not transmitted from the input side gear to the output side gear. Therefore, the second rack remains at the initial position of the second rack. On the other hand, when the moving speed of the lever exceeds a predetermined speed and the rotational speed of the input side gear increases and a large centrifugal force is applied to the shoe, the frictional resistance between the shoe and the drum increases and increases. Therefore, the rotational torque is transmitted from the input side gear to the output side gear. Therefore, the second rack to which the rotational torque of the output side gear is transmitted moves to the crossing position against the biasing force of the second elastic member, and the lever collides with the stopper to stop the movement of the movable body.

  The present invention is characterized in that a transmission adjustment gear mechanism that meshes with the output side gear and the second rack is provided between the output side gear and the second rack.

  According to this configuration, the rotational torque output from the output side gear of the external force transmission mechanism is delayed by the transmission adjustment gear mechanism and transmitted to the second rack. Therefore, in the external force transmission mechanism, an operation period for generating a braking force capable of braking the movable body is ensured, and after the braking force is reliably applied to the movable body, the second rack moves to stop the movable body. become.

  The present invention also provides a one-way clutch in which the external force transmission mechanism does not transmit the rotational force transmitted from the second rack side to the first rack side when the second rack returns to the second rack initial position by the urging force of the second elastic member. It is characterized by comprising.

  According to this configuration, when the second rack returns to the initial position of the second rack by the urging force of the second elastic member after the second rack has moved to the intersecting position, the rotational force transmitted from the second rack side to the external force transmission mechanism. The transmission to the first rack side is cut off by the one-way clutch. For this reason, the first rack is in a free state where it does not receive the braking force of the external force transmission mechanism, and quickly returns to the first rack initial position by the biasing force of the first elastic member.

  Further, the present invention is characterized in that the lever is made of metal and the stopper is made of metal or an elastic material.

  According to this configuration, when the first rack and the second rack move to the intersecting position and the lever and the stopper collide, the metals or the metal and the elastic material collide. When metals collide, damage such as wear and chipping of the lever and stopper is prevented. Further, when the metallic lever and the stopper made of an elastic material collide, each member is prevented from being damaged and the occurrence of a collision sound is prevented.

  Moreover, this invention is provided with the urging | biasing force adjustment mechanism which adjusts the urging | biasing force of a 2nd elastic member.

  According to this configuration, the force required for the second rack to move to the crossing position against the biasing force of the second elastic member is adjusted by adjusting the biasing force of the second elastic member by the biasing force adjusting mechanism. Adjust as appropriate. Accordingly, the response speed of the stopper provided in the second rack to the input of external force can be easily varied. For example, when the urging force of the second elastic member is strongly adjusted by the urging force adjusting mechanism, the stopper is second when the lever moving speed is high and a large rotational torque is transmitted to the second rack by the external force transmitting mechanism. The lever moves quickly to the crossing position against the strong biasing force of the elastic member, and the lever collides with the stopper. Further, when the biasing force of the second elastic member is adjusted to be weak, the stopper is weakly applied to the second elastic member when the lever moving speed is slow and a small rotational torque is transmitted to the second rack by the external force transmission mechanism. It moves slowly to the crossing position against the force, and the lever collides with the stopper. For this reason, by adjusting the urging force of the second elastic member by the urging force adjusting mechanism, it is possible to easily adjust the moving speed of the lever where the lever and the stopper collide.

  According to the present invention, even when the weight of the sliding door or the like is large and the speed is increased, the sliding door or the like can be surely stopped, and the sliding door or the like can be quickly operated without special operation. In addition, it is possible to provide a stop device with a safety mechanism that can be opened and closed at the same time, and does not require labor for installation, and can simplify the device configuration.

It is a perspective view showing a schematic structure of a stop device with a safety mechanism concerning one embodiment of the present invention. It is a disassembled perspective view of the stop apparatus with a safety mechanism which concerns on one Embodiment of this invention. It is a perspective view of the state where the cover of the stop device with a safety mechanism concerning one embodiment of the present invention was removed. It is a perspective view of the case which comprises the housing | casing of the stop apparatus with a safety mechanism which concerns on one Embodiment of this invention. It is a perspective view of a cover which constitutes a case of a stop device with a safety mechanism concerning one embodiment of the present invention. It is a figure which shows the side surface, front, and cross section of an infinite angle rotation damper which comprise the stop apparatus with a safety mechanism which concerns on one Embodiment of this invention.

  Next, the form for implementing the stop device with a safety mechanism by this invention is demonstrated.

  FIG. 1A is a perspective front view showing a schematic configuration of a safety mechanism-equipped stop device 1 according to an embodiment of the present invention, and FIG. 1B is a perspective plan view. 2 is an exploded perspective view of the stop device 1, FIG. 3A is a right front perspective view of the stop device 1 viewed from the upper right side with the cover 2b removed, and FIG. 3B is an upper left side. The left front perspective view looked down from is shown.

  The stopping device 1 includes a first rack 3, a second rack 4, a first elastic member 5, a second elastic member 6, an infinite angle rotary damper 7, and a middle in a rectangular parallelepiped housing 2 including a case 2 a and a cover 2 b. Each component of the gears 8, 9, and 10 is attached and configured. The first rack 3 is provided with a lever 11, and the second rack 4 is provided with a stopper 12. The case 2a is shown in FIG. 4A as a left front perspective view looking down from the upper left side, and in FIG. 4B, a right front perspective view looking down from the upper right side. FIG. 5A shows a front perspective view of the cover 2b looking up from the lower right side, and FIG. 5B shows a rear perspective view looking up the back side from the lower right side.

  The housing 2 has a cover 2b attached to the case 2a with three screws 13, so that the opening surface on the front surface of the case 2a is covered with the cover 2b. In this state, the end of the lever 11 projects from the lower left part of the front of the housing 2. The casing 2 is a fixed body such as a sash frame or a support frame, or a movable body such as a sash or a sliding door that is slidably provided on the sash frame or the support frame, and its longitudinal direction is made to coincide with the movable direction of the movable body. It is attached. The stop device 1 protrudes from the housing 2 when the movable body is at a predetermined relative position with respect to the fixed body, for example, when the movable body such as a sash is in the vicinity of the fixed body such as a vertical frame of the sash frame. By engaging the end portion of the lever 11 to the movable body or the fixed body, the movement of the movable body is safely stopped as described below.

  Below the front of the case 2a is a case side first guide groove 2a1 as shown in FIGS. 4 (a) and 4 (b), and below the back side of the cover 2b is a cover side first guide groove as shown in FIG. 5 (b). 2 b 1 is formed in the longitudinal direction of the housing 2. Further, slide convex portions 3a and 3a are formed on both side surfaces of the first rack 3 as shown in FIG. The first rack 3 is slid in the movable direction of the movable body, that is, the longitudinal direction of the housing 2 by inserting the slide protrusions 3a, 3a into the case-side first guide groove 2a1 and the cover-side first guide groove 2b1. It is provided in the housing 2 freely. In the first rack 3, teeth 3b are cut in a direction perpendicular to the movable direction of the movable body.

  Further, as shown in FIGS. 4A and 4B, the case side second guide groove 2a2 is provided on the left side of the front surface of the case 2a, and as shown in FIG. 5B on the right side of the back surface of the cover 2b. A cover-side second guide groove 2 b 2 is formed in the lateral direction of the housing 2. Also, slide convex portions 4a and 4a are formed on both side surfaces of the second rack 4 as shown in FIGS. 2 and 3A and 3B. In the second rack 4, the slide protrusions 4a, 4a are inserted into the case-side second guide groove 2a2 and the cover-side second guide groove 2b2, so that the second rack 4 is orthogonal to the movable direction of the movable body, that is, the housing. 2 is provided in the housing 2 so as to be slidable to an intersecting position intersecting the sliding direction of the first rack 3 in the short direction of 2. In the present embodiment, the position at which the second rack 4 abuts against the inner wall surface of the case 2 a below the second rack 4 is set at the intersecting position of the first rack 3 and the second rack 4. In this second rack 4, teeth 4 b are cut as shown in FIG. 3A in an orthogonal direction orthogonal to the movable direction of the movable body, that is, a direction perpendicular to the short direction of the housing 2.

  Further, as shown in FIG. 2, a pin 3 c is erected on the end of the first rack 3 on the side away from the second rack 4. Further, as shown in FIG. 4, a pin 2a3 is erected at the lower right corner of the front surface of the case 2a. When the first rack 3 is attached to the case 2a, the pins 3c and 2a3 are positioned in parallel as shown in FIG. A first elastic member 5 is put between these pins 3c and 2a3. The first elastic member 5 biases the first rack 3 toward the first rack initial position that is farther from the second rack 4 than the intersecting position of the first rack 3 and the second rack 4. 1 and 3 show a state where the first rack 3 is located at the first rack initial position. In this embodiment, the first elastic member 5 is constituted by a tension coil spring, and exerts a pulling force that pulls the first rack 3 away from the second rack 4. However, the 1st elastic member 5 is not necessarily limited to a tension coil spring, What is necessary is just to exhibit the same tension | pulling force.

  Further, as shown in FIGS. 4A and 4B, a wall 2a4 is erected perpendicularly to the case-side second guide groove 2a2 at the center on the left side of the case 2a. As shown in FIG. 3, the second rack 4 having a U-shape in side view is attached to the case 2a so that the U-shape sandwiches the wall 2a4. A second elastic member 6 is attached between the lower surface of the upper wall of the second rack 4 and the upper surface of the wall 2a4. The second rack 4 is urged by the second elastic member 6 so that the upper surface of the upper wall is the case 2a. It touches the top of the inner wall. This position of the second rack 4 is the second rack initial position. The second elastic member 6 biases the second rack 4 toward the second rack initial position away from the intersection position. In this embodiment, the second elastic member 6 is constituted by a compression coil spring, and exerts an elastic force that presses the second rack 4 against the top surface of the inner wall of the case 2a. However, the 2nd elastic member 6 is not necessarily limited to a compression coil spring, What is necessary is just to exhibit the same elastic force.

  A lever 11 is attached to the end of the first rack 3 on the second rack 4 side as shown in FIGS. In this embodiment, the lever 11 is made of metal, and has an L-shape in which the end on the side attached to the first rack 3 is short and bent at a right angle. The first rack 3 and the lever 11 are fixed to each other when a screw that is passed through a hole 3 d provided in the first rack 3 is fastened to an L-shaped attachment side end of the lever 11. As shown in FIGS. 5A and 5B, a long hole 2b3 extending in the longitudinal direction of the housing 2 is formed in the cover 2b, and the end of the lever 11 passes through the long hole 2b3 to form a housing. Project outside the body 2. Moreover, the stopper 12 provided in the 2nd rack 4 is provided in the location where the 2nd rack 4 is located in an intersection position, and the lever 11 collides. The stopper 12 is formed of a metal or an elastic material.

  An external force transmission mechanism is provided between the first rack 3 and the second rack 4. In the present embodiment, the external force transmission mechanism is composed of an infinite angle rotation damper 7. When the moving speed of the lever 11 that moves by the external force that slides the first rack 3 toward the crossing position against the biasing force of the first elastic member 5 exceeds a predetermined speed, the external force transmission mechanism Accordingly, the external force is attenuated and transmitted from the first rack 3 to the second rack 4. Then, when the first rack 3 slides to the crossing position by the external force, a force for sliding the second rack 4 to the crossing position against the biasing force of the second elastic member 6 is transmitted to the second rack 4. .

  6A is a side view, FIG. 6B is a front view, and FIG. 6C is a sectional view taken along the line cc in FIG. 6B. The infinite angle rotary damper 7 includes an input side gear 7a meshing with the first rack 3, an output side gear 7b to which an external force input to the input side gear 7a is transmitted, an input side gear 7a, and an output side gear 7b. And a viscous fluid (not shown) provided between the two. The convex portion 7b1 on the side surface of the output gear 7b is inserted into a cylindrical groove 2a5 (see FIG. 4) formed in the case 2a, and the end of the shaft 7d is inserted into a hole 2a6 (see FIG. 4) formed in the case 2a. The convex portion 7a1 on the side surface of the input side gear 7a is inserted into a cylindrical groove 2b4 and a hole 2b5 (see FIG. 5) formed on the back surface of the cover 2b, and both sides of the infinite angle rotary damper 7 are connected to the case 2a and the cover 2b. By being clamped, the infinite angle rotary damper 7 is rotatably supported by the housing 2.

  The infinite angle rotary damper 7 according to the present embodiment includes a one-way clutch 7c. The one-way clutch 7c is surrounded by the input side gear 7a, and the inner ring 7c1 of the one-way clutch 7c is fixed to the shaft 7d together with the output side gear 7b, and is covered by the outer ring 7c2. The viscous fluid is filled in a gap between the outer ring 7c2 provided on the output side gear 7b and the input side gear 7a, and leakage is prevented by the O-ring 7e and the seal member 7f.

  An external force applied to the external force transmission mechanism from the end of the lever 11 via the first rack 3 is transmitted to the input side gear 7a, and the input side gear 7a rotates according to the moving speed of the lever 11. The rotational torque generated in the input side gear 7a is attenuated by the shearing resistance generated in accordance with the magnitude of the rotational speed of the input side gear 7a in the viscous fluid included in the infinite angle rotary damper 7, and the movement of the movable body is braked. . At this time, when the moving speed of the lever 11 is slow and the rotational speed of the input side gear 7a is low, the shear resistance of the viscous fluid does not increase, so that the rotational torque is not transmitted from the input side gear 7a to the output side gear 7b. Accordingly, the second rack 4 remains at the initial position of the second rack. On the other hand, when the moving speed of the lever 11 exceeds a predetermined speed and the rotational speed of the input side gear 7a increases, the shear resistance of the viscous fluid increases and increases, so that the input side gear 7a increases to the output side gear 7b. Rotational torque is transmitted to Therefore, the second rack 4 to which the rotational torque of the output side gear 7b is transmitted moves to the crossing position against the urging force of the second elastic member 6, and the lever 11 collides with the stopper 12 to move the movable body. Stop.

  In the present embodiment, intermediate gears 8, 9, 10 are provided between the output side gear 7 b and the second rack 4 as transmission adjustment gear mechanisms that mesh with the output side gear 7 b and the second rack 4. Each of the intermediate gears 8, 9, 10 is inserted into each cylindrical groove 2a7, 2a8, 2a9 (see FIG. 4) in which one end portion of the shaft is formed side by side with the case 2a, and the other end portion. Is inserted into cylindrical grooves 2b6, 2b7, 2b8 (see FIG. 5) formed side by side on the back surface of the cover 2b, and both sides thereof are sandwiched between the case 2a and the cover 2b, so that the case 2 rotates. It is supported freely. When an external force whose moving speed exceeds a predetermined speed is applied to the lever 11 and the infinite angle rotary damper 7 rotates clockwise as indicated by an arrow in FIG. 1A, the right intermediate gear 8 is counterclockwise. The middle intermediate gear 9 rotates clockwise, and the left intermediate gear 10 rotates counterclockwise, and external force is transmitted to the second rack 4.

  The rotational torque output from the output side gear 7 b of the infinite angle rotary damper 7 is delayed by the intermediate gears 8, 9, 10 and transmitted to the second rack 4. Therefore, in the infinite angle rotary damper 7, an operation period for generating a braking force capable of braking the movable body is ensured, and shear resistance generated between the input side gear 7a and the viscous fluid is ensured by rotating to some extent, thereby controlling After the power is reliably applied to the movable body, the second rack 4 moves to stop the movable body.

  The one-way clutch 7c allows the external force transmission mechanism to transmit the rotational force transmitted from the second rack 4 side when the second rack 4 returns to the second rack initial position by the urging force of the second elastic member 6. Do not transmit to the side. That is, when the second rack 4 returns to the second rack initial position by the urging force of the second elastic member 6 after the second rack 4 moves to the crossing position, the rotational force transmitted from the second rack 4 side to the external force transmission mechanism. The transmission to the first rack 3 side is cut off by the one-way clutch 7c. For this reason, the first rack 3 enters a free state in which the braking force of the infinite angle rotary damper 7 is not received, and quickly returns to the first rack initial position by the biasing force of the first elastic member 5.

  According to the stopping device 1 with the safety mechanism according to the present embodiment, when the movable body moves relative to the fixed body and the movable body is positioned at a predetermined relative position with respect to the fixed body, the fixed body Or the edge part of the lever 11 which protrudes from the housing | casing 2 attached to a movable body engages with a movable body or a fixed body. Furthermore, when the movable body moves relative to the fixed body, the lever 11 moves in the movable direction of the movable body against the urging force of the first elastic member 5. Therefore, the first rack 3 provided on the lever 11 also moves together with the lever 11, and the external force applied to the lever 11 is transmitted to the infinite angle rotary damper 7 that meshes with the first rack 3. When the moving speed of the lever 11 moved by the external force exceeds a predetermined speed, the external force is attenuated by the infinite angle rotary damper 7 according to the speed and transmitted from the first rack 3 to the second rack 4. Therefore, the second rack 4 slides to the cross position against the urging force of the second elastic member 6. As a result, at the crossing position, the lever 11 provided at the end of the first rack 3 on the second rack 4 side and the stopper 12 provided on the second rack 4 collide, and the movement of the movable body is forcibly stopped. Be made.

  When the stop device 1 with the safety mechanism according to the present embodiment is used for stopping a sliding door or the like, and the movable body is a sliding frame or the like, and the fixed body is a support frame that slidably supports the sliding door or the like, immediately before the sliding door or the like is closed Since the stop device 1 is attached at a relative position where the end of the lever 11 is engaged with the support frame or the sliding door, the lever 11 and the stopper 12 are braked by the infinite angle rotary damper 7 immediately before the sliding door is closed. And forcibly stopped. Therefore, when the sliding door is closed at a high speed, it does not depend on the infinite angle rotary damper 7 at all, and the sliding door or the like is placed at a predetermined position before the sliding door is closed by the collision of the lever 11 and the stopper 12. Secure a certain gap and stop reliably. For this reason, even when the weight of the sliding door or the like is large and the speed is increased, the sliding door or the like is surely stopped.

  Further, when the lever 11 is moved in the same direction by an external force at a moving speed that does not exceed a predetermined speed after the movable body stops, the external force from the first rack 3 to the second rack 4 by the infinite angle rotary damper 7. Is not transmitted, the second rack 4 is returned to the initial position of the second rack by the second elastic member 6, the first rack 3 moves beyond the crossing position against the urging force of the first elastic member 5, It collides with the inner wall of case 2a. Therefore, the movable body moves in the same direction as the direction before stopping.

  For this reason, when the stop device 1 with the safety mechanism according to the present embodiment is used for stopping a sliding door or the like, when the sliding door or the like is closed after the sliding door or the like is stopped, the operation is released from the conventional operating state of the advancing / retreating operating body. There is no need to perform a special operation such as switching to a state. Therefore, the stop device 1 with the safety mechanism according to the present embodiment operates smoothly and can quickly open and close the sliding door and the like.

  Moreover, the stop device 1 with a safety mechanism according to the present embodiment exhibits its function when the housing 2 is attached to one of the fixed body and the movable body. For this reason, unlike the conventional stop device, it is not necessary to install or install the device on both the movable side where the sash and the sliding door are provided and the fixed side where the vertical frame and the lower frame are provided. For this reason, it is not necessary to attach the stop device 1 and the device configuration can be simplified.

  In the stop device 1 with the safety mechanism according to the present embodiment, the lever 11 is made of metal, and the stopper 12 is made of metal or elastic material. Therefore, when the first rack 3 and the second rack 4 move to the intersecting position and the lever 11 and the stopper 12 collide, the metals or the metal and the elastic material collide with each other. When metals collide, damage such as wear and chipping of the lever 11 and the stopper 12 is prevented. Further, when the metal lever 11 and the stopper 12 made of an elastic material collide, each member is prevented from being damaged and the occurrence of a collision sound is prevented.

  The stop device 1 according to the above embodiment may be configured to include an urging force adjusting mechanism that adjusts the urging force of the second elastic member 6. This urging force adjusting mechanism, for example, makes the initial length of the second elastic member 6 variable with a screw, or allows the position of the wall 2a4, etc., that supports the second elastic member 6 to be movable in the expansion / contraction direction of the second elastic member 6. Thus, the second elastic member 6 is configured to have a variable initial length, and the initial tension of the second elastic member 6 can be adjusted.

  According to this configuration, the urging force of the second elastic member 6 is adjusted by the urging force adjusting mechanism, so that the second rack 4 moves to the crossing position against the urging force of the second elastic member 6. The required force is adjusted appropriately. Accordingly, the response speed of the stopper 12 provided in the second rack 4 with respect to the input of external force can be easily varied. For example, when the urging force of the second elastic member 6 is strongly adjusted by the urging force adjusting mechanism, the moving speed of the lever 11 is fast and a large rotational torque is transmitted to the second rack 4 by the infinite angle rotary damper 7. The stopper 12 quickly moves to the crossing position against the strong biasing force of the second elastic member 6, and the lever 11 collides with the stopper 12. Further, when the biasing force of the second elastic member 6 is adjusted to be weak, the stopper 12 is moved to the second rack 4 when the moving speed of the lever 11 is slow and a small rotational torque is transmitted to the second rack 4 by the infinite angle rotary damper 7. 2 Slowly moves to the crossing position against the weak urging force of the elastic member 6, and the lever 11 collides with the stopper 12. Therefore, by adjusting the urging force of the second elastic member 6 by the urging force adjusting mechanism, the moving speed of the lever 11 at which the lever 11 and the stopper 12 collide can be easily adjusted.

  In the stopping device 1 according to the above embodiment, the case where the external force transmission mechanism is configured using the infinite angle rotary damper 7 has been described. However, the external force transmission mechanism includes an input side gear 7a meshing with the first rack, an output side gear 7b to which an external force input to the input side gear 7a is transmitted, and an input side gear 7a and an output side gear 7b. A centrifugal clutch or a centrifugal brake (not shown) provided therebetween may be provided.

  Also in this configuration, the external force applied to the external force transmission mechanism from the end portion of the lever 11 via the first rack 3 is transmitted to the input side gear 7 a, and the input side gear 7 a rotates according to the moving speed of the lever 11. The rotational torque generated in the input side gear 7a is attenuated by the frictional resistance generated when the shoe in the centrifugal clutch or the centrifugal brake is pressed against the drum according to the rotational speed of the input side gear 7a, and the movement of the movable body is braked. It is done. At this time, when the moving speed of the lever 11 is slow and the rotational speed of the input side gear 7a is low, the frictional resistance between the shoe and the drum does not increase, and therefore the rotational torque from the input side gear 7a to the output side gear 7b. Is not transmitted. Accordingly, the second rack 4 remains at the initial position of the second rack. On the other hand, when the moving speed of the lever 11 exceeds a predetermined speed and the rotational speed of the input side gear 7a is high and a large centrifugal force is applied to the shoe, the frictional resistance between the shoe and the drum increases. Therefore, the rotational torque is transmitted from the input side gear 7a to the output side gear 7b. Therefore, the second rack 4 to which the rotational torque of the output side gear 7b is transmitted moves to the crossing position against the urging force of the second elastic member 6, and the lever 11 collides with the stopper 12 to move the movable body. Stop. For this reason, the same effect as said embodiment is show | played also by this structure.

  In the stop device 1 according to the above embodiment, the case where the lever 11 is L-shaped has been described. However, the shape of the lever 11 is not limited to the L-shape, and may be a block shape or the like that increases the strength at the time of collision with the stopper 12. In the stopping device 1 according to the above embodiment, the case where the lever 11 is configured separately from the first rack 3 and the stopper 12 is configured separately from the second rack 4 has been described. However, the lever 11 may be integrated with the first rack 3, and the stopper 12 may be integrated with the second rack 4. Also with these configurations, the same effects as those of the above-described embodiment can be achieved.

  DESCRIPTION OF SYMBOLS 1 ... Stop device with safety mechanism, 2 ... Housing, 2a ... Case, 2a1 ... Case side first guide groove, 2a2 ... Case side second guide groove, 2a3 ... Pin, 2a4 ... Wall, 2a5, 2a7, 2a8, 2a9 ... cylindrical groove, 2a6 ... hole, 2b ... cover, 2b1 ... cover side first guide groove, 2b2 ... cover side second guide groove, 2b3 ... long hole, 2b4, 2b6, 2b7, 2b8 ... cylindrical groove, 2b5 ... hole, 3 ... 1st rack, 3a ... slide convex part, 3b ... tooth, 3c ... pin, 3d ... hole, 4 ... 2nd rack, 4a ... slide convex part, 5 ... 1st elastic member, 6 ... 2nd elastic member, 7 ... Infinite angle rotation damper (external force transmission mechanism), 7a ... Input side gear, 7b ... Output side gear, 7c ... One-way clutch, 7c1 ... Inner ring, 7c2 ... Outer ring, 7d ... Shaft, 7e ... O-ring, 7f ... Seal member 8, 9, 10 ... Intermediate gear (transmission adjustment mechanism), 11 ... Lever, 12 ... Stopper, 13 ... Screw

Claims (7)

In a stopping device that stops the movement of the movable body when the movable body is at a predetermined relative position with respect to the fixed body,
A housing attached to the fixed body or the movable body;
A first rack provided in the housing so as to be slidable in a movable direction of the movable body;
A second rack provided in the housing so as to be slidable to an intersecting position intersecting a sliding direction of the first rack in an orthogonal direction orthogonal to the movable direction;
A first elastic member that biases the first rack toward a first rack initial position that is farther from the second rack than the intersecting position;
A second elastic member for biasing the second rack toward the second rack initial position away from the intersecting position;
An end portion that engages with the movable body or the fixed body protrudes from the housing and is separated from the first rack at the end of the first rack on the second rack side or integrally with the first rack. A lever provided;
A moving speed of the lever, which is provided between the first rack and the second rack and moves by an external force that slides the first rack toward the intersecting position against a biasing force of the first elastic member, is predetermined. The external force is attenuated according to the speed and transmitted from the first rack to the second rack, and when the first rack slides to the crossing position by the external force, An external force transmission mechanism that transmits to the second rack a force that slides the second rack to the intersecting position against the urging force of the two elastic members;
A stopper provided separately from the second rack or integrally with the second rack at the second rack where the second rack is located at the intersecting position and the lever collides with the second rack. Stop device with safety mechanism.   The external force transmission mechanism includes an input side gear meshing with the first rack, an output side gear to which the external force input to the input side gear is transmitted, and between the input side gear and the output side gear. The stop device with a safety mechanism according to claim 1, wherein the stop device has a safety mechanism.   The external force transmission mechanism includes an input side gear meshing with the first rack, an output side gear to which the external force input to the input side gear is transmitted, and between the input side gear and the output side gear. The stop device with a safety mechanism according to claim 1, further comprising a centrifugal clutch or a centrifugal brake provided.   4. The safety mechanism according to claim 2, further comprising a transmission adjustment gear mechanism that meshes with the output side gear and the second rack between the output side gear and the second rack. Stop device.   The external force transmission mechanism is a one-way clutch that does not transmit the rotational force transmitted from the second rack side to the first rack side when the second rack returns to the initial position of the second rack by the urging force of the second elastic member. The stop device with a safety mechanism according to any one of claims 1 to 4, wherein the stop device includes a safety mechanism.   The stop device with a safety mechanism according to any one of claims 1 to 5, wherein the lever is made of metal, and the stopper is made of metal or an elastic material.   The stop device with a safety mechanism according to any one of claims 1 to 6, further comprising an urging force adjusting mechanism that adjusts an urging force of the second elastic member.

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