JP6491854B2 - Locking device for sliding door - Google Patents

Description

  The present invention relates to a locking device for a sliding door, and more particularly to a locking device for an upholstered sliding door.

  Conventionally, as a locking device for a sliding door, for example, a fixed case is built in an end portion of the sliding door, a key handle is inserted into a key hole of a locking rotor provided in the fixed case, and the key handle is accommodated in the fixed case by rotating the key handle. In the sliding door locking device in which the slider is driven in the vertical direction and the connecting member connected to the slider engages the receiving part on the fixed frame body side, the tip of the slider to which the connecting member is connected is connected to the side plate portion of the fixed case. It is well known that the door is protruded from the slot into the cavity of the door stop and the opening of the end face of the door stop is closed with a packing member after the connection and length adjustment of the connecting member (see Patent Document 1).

Patent No. 3023101

  However, in the above structure, the driving arm portion protruding from the side surface portion of the locking rotor is rotated by the key handle, so that the upper side connecting member is moved downward by the downward movement of the upper side slider and the tip portion is fixed. The upper side of the frame body is pulled out from the receiving part, and the lower side slider is moved upward by the upward movement of the lower side slider, and the tip part is pulled out from the lower side receiving part of the fixed frame and fixed. The locking of the sliding door to the frame body is released, and it is difficult to increase the design of the appearance because a key handle is required for the sliding door, and the internal structure of the locking device becomes complicated, The increase in cost was a concern.

  Therefore, the present invention solves such problems, adopts a simple structure, makes the appearance design of the sliding door good, and facilitates the mounting work to the sliding door. It is an object of the present invention to provide a sliding door locking device.

In order to solve the above problem, the sliding door locking device according to claim 1 of the present invention is a sliding door locking device that is connected to a locking member that protrudes from the upper end or lower end of the sliding door and is locked. The rod part connected to the slidably supported by the guide part accommodated in the accommodation case so that the rod part can be moved up and down by operation of the operation part, and the rod part is slidable in the operation part. The rod portion is sandwiched by a receiving portion that is arranged to face in a direction perpendicular to a certain direction and that is disposed at least partially on the outside of the housing case ,
The operating unit is inserted through the fixing means from the receiving unit fixing hole provided in the receiving unit, via a through hole provided in the Rod portion, the operation portion is provided on the operating portion base by inserting a penetrating a not operation unit fixing holes, respectively lockable locking mechanism between the locked position and the unlocked position of the fixed to the rod portion and the operating portion, the said rod portion guide portion It is comprised from the latching projection part installed in any one of these, and the latching step part which is provided in the other and the said latching projection part latches.

  The sliding door locking device according to claim 2 of the present invention is the sliding door locking device according to claim 1, wherein the rod portion is supported by at least upper and lower ends of the guide portion, The mechanism is installed in an inner space formed by the inner wall surface formed by expanding from the upper and lower end portions and the rod portion.

  In the sliding door locking device of the present invention, a locking mechanism that switches between the locking position and the unlocking position is configured by the guide portion housed in the housing case, the locking protrusion and the locking step portion installed on the rod portion. Therefore, the internal structure can be simplified as compared with the conventional one. Moreover, since the said latching mechanism does not expose from a storage case, it becomes a favorable thing also in the design on an external appearance.

  In addition, in the mounting operation to the sliding door, it is only necessary to fix the operation portion to the rod portion from the outside of the case with respect to the housing case that is received and fixed in the insertion hole of the sliding door. Can be.

It is a front view of the sliding door which installed the locking device for sliding doors in the example of the present invention. It is a disassembled perspective view of the locking device for sliding doors in the Example of this invention. It is a longitudinal cross-sectional view of the left-right direction of the locking device for sliding doors in the Example of this invention. It is a longitudinal cross-sectional view of the front-back direction of the locking device for sliding doors in the Example of this invention. It is the perspective view which installed the locking device for sliding doors in the Example of this invention in the door-end side frame. It is a top view of FIG. 5 of the locking device for sliding doors in the Example of this invention. It is the (a) perspective view which made the operation part of the locking device for sliding doors in the Example of this invention another specification, (b) It is a rear view. It is the (a) perspective view and (b) back view which made the operation part of the locking device for sliding doors in the Example of this invention still another specification.

  Hereinafter, a sliding door locking device according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the sliding door locking device is installed inside the door-end side frame D1 of the sliding door D, and by operating the operation unit 70 exposed from the door-end side frame D1, A locking member having a stopper 56 at the front end of the connecting member 55 is moved forward and backward from the upper end of the sliding door D to enter and exit the stopper hole D4 of the upper frame D2, and the sliding door D is locked or unlocked.

  In the sliding door locking device, the side on which the upper frame D2 is provided is the upper side of the device, and the floor G side is the lower side of the device. Moreover, let the width direction of the sliding door D be the left-right direction of the said apparatus. Moreover, in the state which installed the locking device for sliding doors in the sliding door D, let the operation part 70 side be the front of the said apparatus, and let the other be the back.

  The said sliding door D is installed so that it can be opened and closed in the left-right direction with respect to the door frame which consists of the upper frame D2 and the eaves frame D3 located in the left and right of the upper frame D2. In addition, the sliding door D is an upper suspension type sliding door that is suspended from a guide rail (not shown) installed inside the upper frame D2 via a suspension vehicle (not shown). Is forming.

  Note that the sliding door D may be a suspended sliding door that does not cause a gap, or may be a common sliding door that opens and closes left and right via a guide rail. is there.

  As shown in FIG. 2, the sliding door locking device according to the present invention includes a storage case 10 installed inside a door-end side frame D <b> 1 of the sliding door D, a guide portion 40 stored in the storage case 10, and a guide. The rod portion 50 slidably supported by the portion 40, the operation portion 70 for operating the rod portion 50, and the guide portion 40 and the rod portion 50 are engaged in the locked position and the unlocked position by the operation of the operation portion 70. And a locking mechanism for stopping.

  As shown in FIGS. 2 to 4, the housing case 10 is formed in, for example, a substantially rectangular parallelepiped shape, and the case body 20 formed by opening one side so that the guide portion 40 can be housed is attached to the case lid 30. It is formed by closing with.

  The case body 20 is formed, for example, by bending a steel plate. Specifically, the case body 20 extends from the upper and lower ends of the rectangular front wall 21 and bends and is bent from the upper and lower walls 22 and 23 and the left and right ends. It consists of a left side wall 24 and a right side wall 25. Moreover, the upper surface wall 22 and the lower surface wall 23 are divided | segmented and formed in the left-right direction so that the rod part 50 which can be moved up and down can be inserted in the substantially center part.

  The case lid 30 is made of, for example, a steel plate in the same manner as the case body 20. The case lid 30 is a rear wall facing the front wall 21, and the case body 20 and the case lid 30 are integrated and accommodated by bending and caulking part of the left side wall 24 and the right side wall 25. Case 10 is formed. Of course, the case body 20 and the case lid 30 can be integrated by other fixing means such as fitting, adhesion, and welding.

  Further, the case body 20 is provided with an opening hole 26 through which the base portion 71 of the operation portion 70 fixed to the rod portion 50 is inserted. The opening hole 26 is formed at a predetermined location so that the base portion 71 of the operation portion 70 does not buffer at the locking position or the unlocking position of the rod portion 50. Furthermore, in order to fix the storage case 10 to the door-end side frame D1, fixing holes 27 and 28 can be provided in predetermined positions on the front wall 21, the left wall 24, and the right wall 25. The fixing holes 27 and 28 are through holes or screw holes.

  On the other hand, the case lid 30 is similarly provided with an opening hole 31 for inserting the base portion 74 of the receiving portion 73 fixed to the rod portion 50 at a predetermined location. Furthermore, in order to fix the storage case 10 to the door end side frame D1, a fixing hole (not shown) corresponding to the fixing hole 27 can be provided in the case lid 30 at a predetermined location.

  The guide part 40 has an outer shape substantially the same as the inner space of the case body 20, and is formed of a resin material having excellent fatigue resistance and wear resistance, and having a small friction coefficient, for example, Duracon (registered trademark). . As shown in FIG. 3, the guide portion 40 has a recess (not shown) through which the rod portion 50 can be inserted in a substantially central portion in the left-right direction. At least an upper end portion 41 and a lower end portion 42 of the recess are The rod portion 50 is formed to have substantially the same outer shape so as to slidably support the rod portion 50.

  Moreover, between the upper end part 41 and the lower end part 42 in the guide part 40, an inner wall surface 43 that is widened outwardly from the upper end part 41 and the lower end part 42 in at least one of the left and right directions is formed. . The space between the inner wall surface 43 and the rod portion 50 is an internal space, and a locking mechanism is installed in the internal space.

  The inner wall surface 43 has a first locking step 44 that locks the locking protrusion 61 of the elastic member 60 at the locking position of the rod portion 50, and the locking protrusion 61 that locks at the unlocking position. A second locking step 45 is provided. Further, a sliding surface between which the locking projection 61 can slide is formed between the first locking step 44 and the second locking step 45. Furthermore, the 1st latching step part 44 and the 2nd latching step part 45 can also be provided in both the inner wall surfaces 43 in the left-right direction. Thereby, the latching force of the rod part 50 can be improved.

  Furthermore, the upper inner wall surface 43 of the first locking step 44 can be provided with an abutting wall 46 on which a screw portion serving as a fixing means 62 when the elastic member 60 is fixed to the rod portion 50 can abut. . Accordingly, it is possible to prevent the locking protrusion 61 from being detached from the first locking step 44 in a state against the urging force of the elastic member 60 and the rod portion 50 from moving upward.

  Further, the lower inner wall surface 43 of the second locking step 45 may be provided with a contact wall 46 with which the locking projection 61 of the elastic member 60 can contact. Accordingly, it is possible to prevent the locking protrusion 61 from being detached from the second locking step 45 in a state against the urging force of the elastic member 60 and the rod portion 50 to move downward.

  Moreover, in order to fix the storage case 10 to the door end side frame D1, the guide part 40 can also be provided with through holes 47 corresponding to the fixing holes of the case body 20 and the case lid 30, respectively, at predetermined positions. Further, when the housing case 10 is fixed to the door end side frame D1, the notch 48 is formed at a predetermined position so that screws or the like fixed to the fixing holes 28 of the left wall 24 and the right wall 25 are not buffered in the guide 40. It can also be provided.

  Further, as shown in FIG. 4, a guide lid 49 is provided in the vicinity of the upper end 41 and the lower end 42 so as to cover a part of the rear side of the rod 50 fitted in the recess of the guide 40, and the guide An opening through which the base 71 of the operation unit 70 is inserted is provided on the front side facing the lid 49. The guide lid 49 is also formed of a resin material having excellent fatigue resistance and wear resistance and a small friction coefficient in the same manner as the guide portion 40.

  As shown in FIGS. 2 to 4, the rod portion 50 has an outer shape corresponding to the concave portion of the guide portion 40 and is formed so that the upper and lower end portions are exposed from the housing case 10. Formed. A fixing hole 51 for fixing the connecting member 55 provided with the stopper 56 shown in FIG. 1 is provided in the upper end portion of the rod portion 50 in the axial direction. Further, the fixing hole 51 can be provided at the lower end portion of the rod portion 50.

  The rod portion 50 is formed with a fixing hole 52 for fixing the elastic member 60 constituting the locking mechanism so as to be orthogonal to the axial direction. The fixing hole 52 is a through hole or a screw hole, and the elastic member 60 is fixed to the rod portion 50 by a fixing means 62 made of a shaft, a screw or the like.

  Further, the rod portion 50 is provided with a concave step portion 53 for positioning the base portion 71 of the operation portion 70 and the base portion 74 of the receiving portion 73 with respect to the rod portion 50 from the end surfaces in the front-rear direction. Further, the stepped portion 53 is provided with a through hole 54 through which a fixing means 76 such as a screw is inserted when the operating portion 70 and the receiving portion 73 are fixed to the rod portion 50.

  As shown in FIG. 3, the elastic member 60 is made of, for example, a leaf spring, and is fixed to the rod portion 50, and a locking projection 61 having an arcuate cross-section provided at the tip is separated from the rod portion 50. And the latching protrusion 61 is configured to abut against the inner wall surface 43, the first latching step 44, and the second latching step 45 while resisting the urging force of the elastic member 60. . Of course, the elastic member 60 is not limited to a leaf spring, and may be made of a synthetic resin or the like.

  The operation unit 70 is fixed to the rod unit 50 from the outside of the housing case 10 and operates the rod unit 50 to the locked position or the unlocked position. As shown in FIGS. 2 and 4, the operation unit 70 includes a base 71 corresponding to a stepped portion 53 that is positioned with respect to the rod portion 50, and the base 71 includes a fixing means including a shaft, a screw, and the like. A fixing hole 72 for inserting 76 is provided.

  The operation unit 70 includes a receiving portion 73 that is positioned outside the opposing housing case 10 and that clamps and fixes the rod portion 50. The receiving portion 73 has a base portion 74 corresponding to the stepped portion 53 of the rod portion 50 in the same manner as the operation portion 70, and a fixing means 76 made of a shaft, a screw or the like is inserted into the base portion 74. The fixing hole 75 is provided.

  The sliding door locking device configured as described above is attached to the door-end side frame D1 as shown in FIGS. Specifically, in a state where the housing case 10 is housed in the insertion hole D5 of the door-end side frame D1, the housing case 10 is attached to the door-end side frame D1 by the screw D6 through the fixing hole 28 of the left wall 24. .

  Then, the base portion 74 of the receiving portion 73 is brought into contact with the step portion 53 of the rod portion 50 from the case lid 30 side of the housing case 10, and the operation portion 70 is exposed to the step portion 53 exposed from a notch (not shown) of the frame front surface D7. With the base portion 71 in contact, the operating portion 70 and the receiving portion 73 are fixed to the rod portion 50 by the fixing means 76 from the rear side. Thereby, the design property can be made favorable without the fixing means 76 being exposed to the operation unit 70 side which is the front side.

  Moreover, since the rod part 50 is accommodated in a state where the front, rear, left and right end surfaces are in contact with the guide part 40 and the guide lid 49, the rod part 50 is excellent in operability when the rod part 50 is moved up and down.

  At this time, as shown in FIG. 6, the frame front surface D9 formed forward from the frame front surface D7 via the frame step D8 serving as a user's handle and the front surface of the operation unit 70 are set to be flush with each other. The Moreover, it is not restricted to what is installed so that the operation part 70 and the frame forefront surface D9 may become flush | planar, but the design property of the external appearance in the sliding door D is favorable by installing so that it may not protrude from the frame forefront surface D9 at least. Can be.

  Further, locking or unlocking of the sliding door locking device is performed by operating the operation unit 70. Specifically, as shown in FIG. 1, the operation unit 70 is pushed upward in a state where the door-end side frame D1 of the sliding door D is in contact with the eaves frame D3. Thereby, when the rod part 50 connected with the operation part 70 moves upward, the stopper 56 of the connection member 55 fits into the stopper hole D4 of the upper frame D2, and becomes the locking position. At this time, as shown in FIG. 3, the locking protrusion 61 of the elastic member 60 in the locking mechanism is locked to the first locking step 44 of the guide portion 40, so an external force is applied to the rod portion 50. It will not be inadvertently unlocked.

  On the other hand, when the operating portion 50 is pulled down from the locking position of the rod portion 50, the rod portion 50 moves downward, whereby the stopper 56 of the connecting member 55 is pulled out from the stopper hole D4 of the upper frame D2, and the unlocking position is reached. It becomes. At this time, the locking projection 61 of the elastic member 60 moves from the first locking step 44 of the guide 40 to the second locking step 45 and is locked, so that the sliding door D can be opened and closed. It becomes a state.

  As described above, according to the sliding door locking device according to the present invention described above, the locking position and the unlocking position are switched by the guide member 40 accommodated in the housing case 10 and the elastic member 60 installed on the rod portion 50. Since the mechanism is configured, the internal structure can be simplified as compared with the conventional one.

  Moreover, since it is comprised so that only the operation part 70 may be exposed from the door-end side frame D1, with respect to the sliding door D, the design property on the external appearance in the sliding door D can be made favorable. Moreover, in the installation work to the sliding door D, it is only necessary to fix the operation part 70 and the receiving part 73 from the outside of the case to the housing case 10 installed in the door end side frame D1, so that the installation work is easy. Can be.

  Furthermore, since the storage case 10 is configured such that only the rod portion 50 is exposed to the outside of the case, it can be reduced in size and the management storage space can be reduced.

  In addition, there are many conventional sliding door locking devices that are locked by rotating the dead bolts on the metal fittings of the collar frame D3. Since the stopper hole D4 which becomes a receiving metal fitting is installed in the upper frame D2 without installing, the design is excellent and the workability is also good.

  The present invention is not limited to the configuration of the above-described embodiment, and is implemented by appropriately changing the shape, dimensions, material, and the like of the housing case 10, the guide portion 40, the rod portion 50, the operation portion 70, and the locking mechanism. Is possible. For example, the locking mechanism includes a first locking step 44 provided on the guide portion 40, a second locking step 45, and a locking protrusion 61 of the elastic member 60 provided on the rod portion 50. However, it is not limited to this. Specifically, the first locking step portion and the second locking step portion may be provided on the rod portion 50 and the elastic member may be fixed to the guide portion 40.

  Further, although the operation unit 70 is fixed to the rod unit 50 by being sandwiched between the receiving unit 73, it is needless to say that the operation unit 70 can be fixed to the rod unit 50 without using the receiving unit 73.

  Further, the stopper hole D4 is provided on the floor surface G side, and the connecting member 55 having the stopper 56 is connected to the lower end portion of the rod portion 50 protruding from the lower side of the housing case 10, and the lower end of the sliding door D is operated by the operation portion 70. The stopper 56 can be moved forward and backward to lock on the floor G side.

  Furthermore, although the shape of the operation part 70 was the rectangular shape shown in FIG.2 and FIG.5, it can also be made into the square shape shown in FIG. 7, and the rectangular corner | angular part shown in FIG. The shape can also be an ellipse or the like. That is, the shape is not particularly limited as long as the shape is easy for the user to operate.

  At this time, in the structure other than the operation unit 70, it is needless to say that the structure of the sliding door locking device in the above-described embodiment is substantially the same, and in this, the shape of the rod part 50 is various. Of course, the structure other than the rod part 50 has the creativity of the design, and of course causes aesthetics. Further, since the housing case 10 is formed in a substantially rectangular parallelepiped shape, the bottom view is symmetrical with the plan view and the left view is symmetrical with the right view. Further, it is possible to adopt a mode in which the fixing holes 27 and 28 formed in the housing case 10 and the through hole 47 of the guide portion 40 are not formed, as in the above-described embodiment.

  Of course, a part of the configuration can be omitted, and a part of the configuration can be extracted.

DESCRIPTION OF SYMBOLS 10 Storage case 40 Guide part 43 Inner wall surface 50 Rod part 70 Operation part 73 Receiving part D Sliding door D2 Upper frame

Claims (2)

A sliding door locking device connected to a locking member that protrudes from the upper or lower end of the sliding door and is locked.
The rod portion connected to the lock member is slidably supported by a guide portion housed in the housing case so that the rod portion can be moved up and down by operation of the operation portion,
The operation portion sandwiches the rod portion with a receiving portion that is disposed opposite to the rod portion in a direction perpendicular to the slidable direction and at least a part of the operation portion is disposed outside the housing case. And
The operating unit is inserted through the fixing means from the receiving unit fixing hole provided in the receiving unit, via a through hole provided in the Rod portion, the operation portion is provided on the operating portion base by inserting a penetrating a not operating section fixing hole, is secured to the rod portion,
The locking mechanism that can be locked at the locking position and the unlocking position of the operation portion, respectively, is a locking protrusion that is installed on either the rod portion or the guide portion, and the locking mechanism that is provided on the other side. A locking device for sliding doors, characterized in that it comprises a locking step portion for locking the protrusion. The rod portion is supported by at least upper and lower ends of the guide portion,
2. The sliding door locking device according to claim 1, wherein the locking mechanism is installed in an inner space formed by an inner wall surface formed by being widened from the upper and lower end portions and the rod portion.

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