JP6154133B2 - Locking body with catch body fixing auxiliary body - Google Patents

Description

  The present invention relates to a sliding door with a sliding door closing assist mechanism, and relates to a passage prevention and recovery mechanism of a sliding door slide shock absorber provided in the sliding door for assisting at least a final portion of the sliding door or assisting an automatic closing operation.

  Conventionally, when closing a sliding door, it depends on the size of the sliding door, but in the case of a large sliding door, it is difficult to control the force in the closing direction, and the sliding door with a certain momentum or more In some cases, the door is closed as it is, and there is a risk that the impact may cause a very loud noise, breakage of the sliding door, detachment of the sliding door, and sometimes injury such as pinching a finger.

  Therefore, in order to solve the problem in the sliding door, when the sliding door is closed more than a certain level, the door automatically operates in the closing direction from a predetermined position, and the final closing operation is performed by controlling the momentum of the door. Thus, for example, Japanese Patent Application Laid-Open No. 2009-127293 and Japanese Patent Application Laid-Open No. 2006-169723 have proposed sliding door slide shock absorbers capable of suppressing generation of noise, door breakage, and the like.

  These sliding door slide shock absorbers are slidably disposed along the casing and locked to the dropping engagement section formed on the casing, with the casing having a depression locking portion (fixed portion) in the upper longitudinal direction. A catch body that can be attached and detached, and a buffer damper, a spring body, and a catch body that are connected to the catch body and arranged in the longitudinal direction (in the opening and closing direction of the sliding door). When a locking projection that locks with the catch body is protruded and the sliding door is moved in the opening direction from the closed time, the catch body that has been engaged with the locking projection slides along the sliding door movement direction. When the spring body connected to the catch body moves in the direction of extending and moves a certain distance, the catch portion falls on the drop-in locking portion provided in a step at the end of the housing. The spring body is extended by being locked In fixed sliding door and has a configuration that is open.

  On the other hand, when the sliding door in the open state is moved in the closing direction, the sliding door that has been slid to the predetermined distance by the door frame guide mechanism is re-engaged with the locking projection provided at the predetermined position. The engagement of the catch portion and the drop-in locking portion of the housing is canceled as the sliding door moves further in the closing direction, and the extended spring body is released by eliminating this engagement. It will head in the direction of contraction.

  At the same time, the damper that acts to buffer the contraction force of the spring body and the force in the closing direction of the sliding door works, so that the sliding door moves at a predetermined constant speed for a certain distance and automatically closes the sliding door. By providing such an assist mechanism in the closing direction of the sliding door, the predetermined distance until the sliding door is closed is kept constant and can be closed safely and without waste.

  However, the member corresponding to the catch body of the sliding door slide shock absorber disclosed in Japanese Patent Application Laid-Open No. 2009-127293 and Japanese Patent Application Laid-Open No. 2006-169723 described in the above-mentioned conventional publication is the door frame when the sliding door is operated in the opening direction. The catch body comes into contact with the latching convex portion installed on the base, and the spring body is stretched along with it, and the housing contact surface is slid. However, this operation is performed by the locking projections accompanying the movement of the sliding door in the opening direction, and the catch body and the catch locking body provided at the tip of the housing are the catch body. Depends on the natural fall due to the weight of the, and no contrivance for locking the drop lock portion is made.

  For this reason, there is a concern that the catch body may not be smoothly locked to the drop-in locking portion, which may hinder the opening operation of the sliding door, and the sliding door may not be smoothly opened. The force in the direction must be applied to the sliding door, and when this is opened and closed many times, more force than expected for the sliding door is applied at the closing time, so that the catch body of the drop-in locking part is predetermined. The sliding door is closed by passing through the locking projection without being locked by the locking projection, and the sliding shock absorber does not operate. In order to restore the position, there is a problem that it takes time and effort to detach and adjust the sliding door and then fit it into the door frame.

JP 2009-127293 A JP 2006-169723 A

  The present invention is intended to solve the above-described problems. In the sliding door slide shock absorber provided in the sliding door with the sliding door closing assist mechanism, the second half of the sliding door closing operation is reliably and smoothly engaged. It is an object of the present invention to provide a sliding door slide cushioning device that can provide a catch body structure that securely latches with a convex portion and can easily return even when the catch body passes through the latching convex portion.

Therefore, the present invention is provided with a spring body and is attached to the upper end side of the sliding door, and can be engaged and disengaged from the lower side to the locking convex portion protruding downward from a predetermined position of the door frame for guiding the upper end side of the sliding door in the horizontal direction. The catch body that engages with the sliding door is slidably arranged in a predetermined range in the longitudinal direction of the sliding door, and when the sliding door is opened, the catch body is engaged with the locking projection protruding from the door frame At the time when the spring body is extended by a predetermined amount by the sliding door opening operation, it is detached from the locking convex portion and fixed to the housing side, and is reengaged from the locking convex portion by the sliding door closing operation to be detached from the housing. This is a sliding door sliding buffer locking body that automatically performs at least the final range of the second half of the closing operation of the sliding door by the elastic contraction force of the spring body while being buffered by the action of a buffer damper installed in the housing. Te, the engagement Tometai are found disposed in a predetermined position of the case side to the tip The catch member having a locking hole that engages and disengages to the engaging convexed latch portion at the back and has a catch portion for latching to fall into落込locking portions, Ru is connected via a connecting shaft to the rear A slide body and a spring that is provided on the slide body and biases the catch portion of the catch body in a downward direction, and the catch portion of the catch body is dropped and locked onto the drop-in lock portion. A catch body fixing auxiliary body that protrudes from the slide body when the catch portion falls parallel to the slide body and is not locked by dropping into the drop-in lock portion. Even when the locking projection of the body does not engage and the locking projection exceeds the catch body, the catch body fixing auxiliary body protruding from the slide body is engaged with the locking projection. By combining Characterized by preventing the passage of the securing body.

  Further, in the present invention, in the return operation for returning the catch body to a predetermined locking position when the sliding door is closed after passing through the locking protrusion and the catch body fixing auxiliary body, the locking protrusion In order that the locking body can be returned to a predetermined position without being fixed to the locking body, the locking body member such as the catch body fixing auxiliary body is It protruded greatly and it comprised so that it might not contact | abut on a latching convex part.

  Furthermore, an inclined surface is provided at a position opposite to the catch portion of the catch body, and in the return operation of the sliding door, the locking convex portion is devised so that the sliding door can return smoothly, depending on the shape and size of the locking convex portion, A groove was provided in a part of the inclined surface in the sliding door sliding direction.

According to the present invention, in addition to being able to smoothly and surely perform the latter half of the sliding door closing operation, it is possible to reliably fix the catch body to the drop-in locking portion by attaching it to the lower part of the catch body. In addition, it is possible to solve the problem that the locking effect is lowered with the passage of time, and even if the catch body is not locked with the locking projection, another locking portion is In addition, the sliding door can be easily recovered to a predetermined position even when it passes through the locking projection.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a reference diagram showing a state of being incorporated as a closing device when sliding the sliding door, FIG. 1 (a) shows a closed state, FIG. 1 (b) shows an opened time, and FIG. 2 (a). FIG. 2B is an exploded perspective view of an embodiment of a locking body 10 of a sliding door closing device.

  The sliding door slide shock absorber (closing device) according to the present invention is provided on the upper side of a commonly used sliding door, and automates a certain interval until the sliding door is closed from a predetermined position when the sliding door is closed. Specifically, as shown in FIG. 1, the spring frame 3 is attached to the upper end side of the sliding door 1, and the door frame 8 that guides the upper end side of the sliding door 1 in a substantially horizontal direction is directed downward from the predetermined position. A catch body 20 that engages with the casing 5 projecting from the lower side is projected so as to be slidable back and forth within a predetermined range in the longitudinal direction of the sliding door 1, and the spring body is slid by sliding the catch body 20. By urging the sliding door 1 in the closing direction by 3, a certain section in the closing direction of the sliding door is automated.

  In the present embodiment shown in FIG. 1, although only a front view is shown, the two spring bodies 3 are usually provided substantially in parallel to the oil damper 4. Is appropriately adjusted according to the size and weight of the sliding door used, the strength of the oil damper 4, and the like. In the present embodiment, an oil damper is used, but a damper having a buffering action is used. If so, other dampers may be used.

  FIG. 1A shows a state in which the sliding door 1 is closed, and the catch portion 21 of the catch body 20 is detached from the drop lock portion 6 of the housing 2 and fixed to the lock projection 5. At this time, the spring body 3 is in a contracted state, and the oil damper 4 is in a contracted state by the contraction force of the spring body 3, and the door wheel 7 reaches the tip of the door frame 8 to close the sliding door.

  Here, when a predetermined force is applied in the opening direction from the closed state to the sliding door 1, the sliding door 1 is locked to the locking convex portion 5 with respect to the operation in the opening direction (arrow direction in FIG. 1B). The catch body 20 has a predetermined resistance force by the spring body 3, but when a force greater than the contraction force of the spring body 3 is applied, the catch body 20 engages with the locking projection 5. The spring body 3 is extended in conjunction with the sliding door opening operation in the maintained state.

  As shown in FIG. 1B, when the spring body 3 is extended by a predetermined amount, the catch body 20 is turned off from the engaging projection 5 with the connecting shaft 22 as an axis and the coil spring 24 is repelled. The spring body 3 is extended by fixing the catch portion 21 acting downward by the elastic force of the coil spring 24 to the drop-in locking portion 6 provided at a predetermined position on the housing 2 side of the sliding door 1 by force. The sliding door 1 moves in the opening direction while maintaining the state.

On the other hand, in the closing operation of the sliding door 1, when the sliding door 1 reaches a predetermined distance, when a part of the catch body 20 collides / contacts with the locking projection 5, the catching section 6 and the catching section 6 of the housing 2 are caught. While the engagement with the body 20 is disengaged, the engagement hole 25 of the catch body 20 and the engagement protrusion 5 are reengaged, and the catch portion 21 is disengaged from the drop engagement portion 6 on the housing 2 side, It is a sliding door slide shock absorber that automatically performs a predetermined range until the full closing of the second half of the sliding door closing operation by the elastic contraction force of the spring body 3 while being buffered by the action of the oil damper 4.

  Then, the structure of the latching body 10 in this Embodiment is explained in full detail.

  FIG. 2 shows an example of the locking body 10 according to the present embodiment. As a feature of the locking body 10, the catch body is constituted by a catch body 20 and a slide body 40 connected to each other. 20 is configured to efficiently engage with the drop-in engagement portion 6 and the engagement protrusion 5 and to smoothly release the engagement.

  FIG. 2 shows an embodiment of the locking body 10 of the present invention.

  The locking body 10 is composed of a plurality of members. Specifically, the catch body 20 including the catch portion 21 that locks with the drop-in locking portion 6, the catch body 20, and the slide body 40 are rotatable. A coupling shaft 22 to be fixed and a coil spring 24 for urging the catch portion 21 of the catch body 20 downward between the catch body 20 and the slide body 40 are configured.

  In the locking body 10 shown in the above embodiment, when the sliding door moves in the opening direction from the closed state, the locking hole 25 of the catch body 20 locked to the locking projection 5 is As the spring body 3 is moved in the opening direction, the spring body 3 is extended while sliding on the rail of the housing 2 while moving forward, and then the drop lock provided in the vicinity of the end of the housing 2 in the direction of the door 7 When the catch portion 21 of the catch body 20 falls on the portion 6, the catch body 20 is fixed, and the spring body 3 is fixed in an extended state.

  In this case, in the present embodiment, the catch body 20 has a latching body 10 attached to the housing 2 by a downward biasing force about the connecting shaft 22 by the repulsive force of the coil spring 24. Slide on the rail, and at the moment when the catch portion 21 at the tip of the catch body 20 reaches the drop-engagement portion 6, the catch portion 21 falls to the drop-engagement portion 6 to securely fix the lock body 10. Can do.

  Further, as shown in FIG. 2A, the locking body 10 includes a catch body 20 having a catch portion 21 that locks with the drop-in locking portion 6, and the catch body 20 is engaged with the drop-in locking portion 6. It comprises a catch body fixing auxiliary body 30 for assisting the operation for stopping and a slide body 40 for fitting the catch body fixing auxiliary body 30 and assisting the sliding of the catch body 20.

  As shown in FIG. 2B, a coil spring 24 is assembled between the catch body 20 of the locking body 10 and the slide body 40. The coil spring 24 causes the catch body 20 to have the connection pin 22 as an axis. The downward movement of the catch portion 21 of the catch body 20 is urged to assist in locking the catch portion 21 so as to fall into the drop-in lock portion 6 provided in the housing 2 of the sliding door 1. To do.

  In the present embodiment shown in FIG. 2, in addition to the structure in which the connecting shaft 22 between the catch body 20 and the slide body 40 is provided with a coil spring 24 that urges the locking body 10 downward, the concave portion of the slide body 40 is provided. 41 is provided with a catch body fixing auxiliary body 30.

  As shown in FIG. 2B, the catch body fixing auxiliary body 30 is substantially L-shaped, and is fixed to the slide body 40 so as to be rotatable by the connecting shaft 32, and the catch body is fixed. A coil spring 31 for urging the catch body fixing auxiliary body 30 upward is provided on a connecting shaft 32 between the auxiliary body 30 and the slide body 40.

  The catch body fixing auxiliary body 30 urges the catch portion 23 of the catch body 20 upward by the urging force of the coil spring 31, and the catch body 20 locks the housing 2 in the direction of the drop-in lock section 6 in the opening operation. In addition to making the operation more reliable, even when a force in the opening direction more than expected is applied to the sliding door 1, the catch portion 21 of the catch body 20 is reliably locked to the drop lock portion 6, The catch body 20 is reliably locked even when the catch body is worn and slippery due to long-term use, or when the drop-in locking portion 6 is shallow for some reason.

  In addition, in the structure of the catch body 20 shown in FIG. 2, when the sliding door 1 is closed, the speed of the sliding door 1 is faster than expected and the catch body 20 comes into contact with the locking projection 5. There is a possibility that the catch body 22 passes through the latching protrusion without being latched with the latching hole 25 without the catch portion 22 being detached from the drop latching section 6 of the housing 2 and the sliding door 1 is closed.

  In such a case, in the locking body 10 according to the present embodiment, the catch body 20, the slide body 40, and the catch body fixing auxiliary body 30 are configured as separate members, and the catch body 20 is locked. A gentle slope is provided on the rear slide body 40 side with respect to the hole 25 (in FIG. 2, a smooth surface is provided with a slope, but a groove (not shown) is formed on a line through which the locking projection 5 passes. )), And the locking projection 5 is locked between the inclined portion of the catch body of the catch body fixing auxiliary body 30, and the catch portion 23 of the catch body 20 By contacting, the catch part 22 of the catch body 20 and the drop latching part 6 are disengaged, and the slide buffer mechanism is started.

  Further, even if the catch protrusion 20 passes through the catch body 20 or the catch body 10 without operating the passage prevention mechanism by the catch body fixing auxiliary body 30 and the catch body 20, the catch body 20 In a state where the catch portion 21 is locked to the drop latching portion 6 of the housing 2, a part of the tip of the catch body 20 side of the catch body 20 of the catch body fixing auxiliary body 30 is urged upward by the coil spring 31. Since the catch body fixing auxiliary body 30 is positioned substantially parallel to the slide body 40, the sliding door 1 is removed from the door frame 8 without any obstacle to return the sliding door to the position before the locking convex portion 5. Instead, it is possible to return to the normal open state by simply sliding the sliding door 1 along the door frame 8 while slowly sliding it back.

  As described above, for a sliding door that is a relatively large sliding door and has a certain weight or more, a spring body and a buffer damper that sufficiently correspond to this weight are required. 2 adopts the catch body fixing auxiliary body as shown in FIG. 2 to enable more reliable closing of the sliding door and to prevent the sliding projection of the sliding door from passing double and Even after passing through the position, it was possible to return easily.

(A) Plan view of a sliding door slide shock absorber according to the present invention in a closed state (b) Plan view of a sliding door slide shock absorber according to the present invention in an open state (A) Perspective view of locking body of sliding door slide shock absorber according to the present invention (b) Disassembled perspective view of locking body of sliding door slide shock absorber according to the present invention

  DESCRIPTION OF SYMBOLS 1 Sliding door, 2 housing | casing, 3 spring body, 4 oil damper, 5 latching convex part, 6 depression latching part, 7 door pulley, 8 door frame, 10 latching body, 20 catch body, 21 catch part, 22 connecting shaft , 23 hook part, 24 coil spring, 25 locking hole, 30 catch body fixing auxiliary body, 31 coil spring, 32 connecting shaft, 40 slide body, 41 recess

Claims (4)

A catch body that is provided on the upper end side of the sliding door with a spring body, and engages and disengages from the lower side to a locking projection protruding downward from a predetermined position of the door frame that guides the upper end side of the sliding door in the horizontal direction. Is arranged so as to be reciprocally slidable in a predetermined range in the longitudinal direction of the sliding door, and when the sliding door is opened, the sliding body is engaged by the engaging projection protruding from the door frame by the sliding door opening operation. When the spring body is extended by a predetermined amount, it is detached from the locking projection and fixed to the housing side, and is re-engaged with the locking projection by the sliding door closing operation to be detached from the housing and installed in the housing. A locking body for a sliding door slide shock absorber that automatically performs at least the final range of the second half of the closing operation of the sliding door with the elastic contraction force of the spring body while being buffered by the action of a buffer damper,
The locking body has a catch portion that is dropped and locked at a drop-in locking portion provided at a predetermined position on the housing side at the tip, and a locking hole that is engaged with and disengaged from the locking projection is provided behind the locking portion. and the catch member, the catch portion of the catch member with comprises a slide body that will be connected through the connecting shaft to the rear, the spring biasing the catch portion of the catch member provided on the slide member downward A catch body that is parallel to the slide body when it is dropped and locked to the drop locking portion and protrudes from the slide body when the catch portion is not dropped and locked to the drop lock portion Even if it is a case where the latching convex part and the catching hole of the catch body do not engage and the latching convex part exceeds the catch body, the latching convex part protrudes from the slide body. The catch body fixing assist But by engaging with the engaging convexed latch portion, provided with a catch member fixed auxiliary member, characterized in that to prevent the passage of said locking member engaging members.   In a return operation for returning the catch body to a predetermined locking position when the sliding door is closed after passing through the locking protrusion and the catch body fixing auxiliary body, it is not fixed to the locking protrusion. The locking body provided with the catch body fixing auxiliary body according to claim 1, wherein the locking body can be returned to a predetermined position.   The locking body provided with the catch body fixing auxiliary body according to claim 1 or 2, wherein an inclined surface is provided at a position opposite to the catch portion of the catch body.   The locking body provided with the catch body fixing auxiliary body according to claim 1, wherein a groove is provided in a part of the inclined surface of the locking body in the sliding door sliding direction.