JP5654662B1 - Sliding door guide device - Google Patents

Abstract

Provided is a sliding door guide device for quietly guiding a sliding door by reducing a collision sound of a guide projection protruding from a floor side by a magnetic force when the sliding door is running. The sliding door guide device G is provided with an air layer 45 at the contact portion 40 of the door side guide g2 to absorb and absorb the collision sound when the guide projection 15 abuts, and the air layer against which the guide projection abuts. The outer plate-like portion 40a is provided with a sound-reducing structure in which the guide projection is elastically deformed when the guide projection abuts and has a thickness that cushions the impact. When it hits the part, the outer plate-shaped part elastically deforms and cushions the impact, thereby reducing the impact sound of the guide protrusion and suppressing the impact sound from resonating in the air layer and propagating to the outside. In this way, the collision noise of the guide protrusion is effectively reduced. [Selection] Figure 1

Description

  The present invention relates to a sliding door guide device that guides a sliding door that is movably suspended by a sliding door rail or the like so as to move straight in the opening and closing direction without swinging when opening and closing.

  Conventionally, in this type of sliding door guide device, mounting holes are recessed at intervals on the floor surface under the track on which the sliding door travels, and guide projections such as guide pins having magnets at the mounting holes. The magnetic attachments with magnets are arranged on the door tips and the bottom of the elongate running grooves that are recessed in the lower end surface of the sliding door. There is a structure that guides the sliding door to move straight in the opening and closing direction without causing sideways swinging by attracting the guide protrusion by magnetic force and engaging the traveling groove when it reaches the floor side guide protrusion (patent) Reference 1).

JP-A-8-326402

  However, in the conventional sliding door guide device, when the sliding door is running, the guide projection is attracted by the magnetic force to protrude from the mounting hole, and the leading end is engaged with the running groove to guide the running of the sliding door. When the landing body reaches the guide protrusion on the floor side, the tip of the guide protrusion sucked each time collides with the magnetic attachment body, and the collision sound reverberates widely, resulting in an unpleasant noise. .

  SUMMARY OF THE INVENTION An object of the present invention is to provide a sliding door guide device that quietly guides a sliding door by reducing a collision sound of a guide projection protruding from the floor side by a magnetic force during traveling of the sliding door.

According to the first aspect of the present invention, for example, as shown in the embodiment shown below, the sliding door 10 travels while being movably suspended in the opening / closing direction with a gap between the sliding surface 10 and the floor surface f. The guide projection 15 of the floor-side guide g1 inserted in the floor surface f under the track so as to be able to appear and retract by magnetic force is projected in the running groove 20 of the door-side guide g2 formed on the lower end surface 10a of the sliding door 10. The door- side guide g2 is engaged to guide the traveling of the sliding door 10, and the door- side guide g2 mounts the magnet M that attracts the guide protrusion 15 by magnetic force, and swings by pivotally supporting the longitudinal base end. In the sliding door guide device G having a suction stand 17 that is cantilevered so that the front end in the length direction protrudes at a predetermined height and is locked at an inclination angle position, the door side guide g2 is a groove on both ends of the running groove 20 The guide protrusion 15 engages with the protrusion 20a. The protruding portion is provided with an abutting portion 40 against which the guide projection 15 abuts, and an air layer 45 that resonates and reduces the impact sound that the guide projection 15 abuts against the corresponding contact portion 40 is formed. And

  The invention according to claim 2 is the sliding door guide device according to claim 1, for example, as in the illustrated embodiment shown below, in the door side guide g 2, the abutting portion 40 has the guide protrusion 15. A portion on the outer side in the thickness direction of the air layer 45 that abuts is formed to a thickness that cushions an impact by elastic deformation when the guide projection 15 abuts.

  According to a third aspect of the present invention, in the sliding door guide device according to the first aspect of the present invention, for example, as in the illustrated embodiment shown below, in the door side guide g2, the abutment portion 40 is formed by the guide projection 15 being A pair of slits 51 are provided on both sides in the width direction sandwiching a portion 40a on the outer side in the thickness direction of the abutting air layer 45, and when the guide projection 15 abuts between the slits 51, it elastically deforms to cushion the impact. A portion 52 is formed.

  According to a fourth aspect of the present invention, in the sliding door guide device according to the first aspect, for example, as in the illustrated embodiment shown below, in the door side guide g2, the abutment portion 40 is formed by the guide projection 15 being A cutout having a tongue-like outer shape is provided in a portion 40 a on the outer side in the thickness direction of the air layer 45 to be abutted to provide a cantilever elastic piece 53, and when the guide protrusion 15 abuts the elastic piece 53, the elastic piece 53 Is characterized in that it is configured to cushion the impact by bending.

  According to a fifth aspect of the present invention, in the sliding door guide device according to the first aspect of the present invention, for example, as in the illustrated embodiment shown below, in the door side guide g2, the abutment portion 40 is formed by the guide projection 15 being A cavity 49 covered with the outer part 40a and the inner part 40b that are in contact with each other is formed, and a porous member 50 is provided in the cavity 49 so that a large number of holes included in the porous member 50 are formed as an air layer. It is characterized by becoming.

  According to the first aspect of the present invention, when the guide projection hits the contact portion of the door side guide, an air layer is formed in which the collision sound resonates and absorbs. Therefore, the guide projection hits the contact portion. However, it is possible to effectively reduce the collision noise of the guide protrusion by suppressing the collision noise from resonating in the air layer and propagating to the outside. It is possible to quietly guide the sliding door travel by preventing the collision noise of the guide protrusion from reverberating and becoming unpleasant noise.

  According to the second aspect of the present invention, in the door-side guide, the abutting portion has a thickness that cushions an impact by elastically deforming a portion on the outer side in the thickness direction of the air layer where the guide protrusion abuts when the guide protrusion abuts. Therefore, when the sliding movement of the sliding door, when the guide projection hits the outer portion of the contact portion, the outer portion is elastically deformed to buffer the impact, thereby reducing the collision noise of the guide projection, In addition, it is possible to prevent the collision sound from resonating with each other in the air layer and propagating to the outside, thereby effectively reducing the collision sound of the guide protrusion.

  According to the third aspect of the present invention, in the door side guide, the contact portion is provided with a pair of slits on both sides in the width direction sandwiching a portion on the outer side in the thickness direction of the air layer where the guide projection hits, When the guide protrusion hits between the slits, the elastic part is formed to elastically deform and buffer the impact, so that when the guide protrusion hits the elastic part between the slits of the abutment part during sliding door movement, the elastic part Is elastically deformed to buffer the impact of the collision, thereby reducing the impact sound of the guide protrusion, and further suppressing the collision sound from resonating in the air layer and propagating to the outside. The impact noise of the guide protrusion can be reduced more effectively.

  According to the invention of claim 4, in the door side guide, the abutting portion has a tongue-shaped cut in the outer side in the thickness direction of the air layer where the guide projection abuts and is elastic in a cantilever state. When the guide protrusion hits the elastic piece, the elastic piece bends and cushions the impact, so when the sliding door is running, when the guide protrusion hits the elastic piece of the contact portion, the elastic piece is bent. The impact noise of the guide projection is reduced by buffering the impact of the impact, thereby reducing the impact noise of the guide projection and suppressing the collision noise from resonating in the air layer and propagating to the outside. The sound can also be reduced.

  According to the fifth aspect of the present invention, in the door-side guide, the abutting portion forms a cavity covered with the outer part and the inner part where the guide protrusion abuts, and the porous member is provided in the cavity. Since a large number of holes included in the porous member are formed as an air layer, when the guide projection hits the outer part of the abutting part when the sliding door is running, the outer part is elastically deformed and shock is applied. Absorbing impact noise by buffering and thus absorbing impact of the guide protrusion, and a large number of air layers in the pores of the porous member absorb impact noise and effectively reduce noise Can do.

It is a longitudinal cross-sectional view which fractures | ruptures and shows the internal structure of the sliding door guide apparatus of 1st Embodiment of this invention that a guide protrusion protrudes. It is a perspective view which shows the whole sliding door guide apparatus. It is a front view which shows the door structure provided with the sliding door guide apparatus in the fully open state of a sliding door by making the lower part side into a partial cross section. It is a longitudinal cross-sectional view which fractures | ruptures a sliding door lower part and shows the internal structure of a sliding door guide apparatus in the accommodation state in a guide protrusion. (A) End view showing an example of a magnetizing means, (b) AA sectional view showing its internal structure. (A) BB sectional drawing which shows the internal structure of an example of a magnetic attachment means, (b) It is a side view of the magnetic attachment means. It is a perspective view which shows the magnetizing means of the state which hold | maintained the adsorption stand in the predetermined inclination angle position seeing from diagonally downward. (A) CC sectional drawing which shows the internal structure of the other example of a magnetic attachment means, (b) It is a side view of the magnetic attachment means. (A) DD sectional drawing which shows the internal structure of the other example of a magnetic attachment means, (b) It is a side view of the magnetic attachment means. (A) EE sectional drawing which shows the internal structure of the other example of a magnetic attachment means, (b) It is a side view of the magnetic attachment means. (A) End view showing another example of the same magnetizing means as FIG. 10, (b) FF sectional view showing the internal structure of the magnetizing means. (A) GG sectional drawing which shows the internal structure of the other example of a magnetic attachment means, (b) It is a side view of the magnetic attachment means. It is a perspective view which shows the sliding door guide apparatus of other embodiment of this invention. It is a perspective view which shows the sliding door guide apparatus of another embodiment of this invention.

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

  1 shows the internal structure of the sliding door guide device according to the first embodiment of the present invention, FIG. 2 shows the entire sliding door guide device, and FIG. 3 shows the door structure provided with the sliding door guide device in a fully open state of the sliding door. Show. The door structure of the illustrated example suspends a sliding door 10 engaged with a sliding door rail fixed to the ceiling side via a door wheel so that the sliding door 10 can run freely in the opening and closing directions in the left and right directions. 10 is opened and closed in the opening and closing direction, and the opening surrounded by the floor F and the partition wall W is opened and closed. Therefore, when the sliding door 10 is slid to open and close the opening, the sliding door guide device G of the present invention is operated to guide the sliding door 10 traveling in the opening and closing direction so as to go straight without swinging.

  The sliding door 10 is made of, for example, a wooden panel, and a pair of end plate members are bonded to each other with a frame body assembled in a lattice pattern between upper and lower horizontal fences, left and right vertical fences, and vertical and horizontal bars between each fence. The mounting groove 12 is drilled along the length direction of the lower end surface 10a in the lower ridge of the assembly.

  The sliding door guide device G includes a floor side guide g1 disposed on the floor F and a door side guide g2 provided in the mounting groove 12 of the sliding door 10.

  The floor-side guide g1 includes a plurality of guide bodies a, b, and c. As shown in FIGS. 1 to 4, the guide bodies a, b, and c each include a fixed cylinder 13, a positioning case 14, and guide protrusions 15 that are inserted into the positioning case 14. The fixed cylinder 13 is a resin-made circular pipe having an inner circumference of octahedron, and has a large number of hooking claws 13a. The positioning case 14 is made of resin, has both upper and lower ends opened, an outer shape of the case body 14 a having an octahedral shape according to the inner shape of the fixed cylinder 13, and a protruding opening 19 opened at the upper end of the case body 14 a in the figure. And a flat mounting plate portion 14b extending in a circular bowl shape from the periphery. The case body 14 a has a cylindrical guide hole 21 with an upper opening overlapping the inside and having a protruding opening 19.

  The guide protrusion 15 is a cylindrical first convex member 24 that is nested and incorporated in the guide hole 21 of the positioning case 14, and a pin-shaped second convex that is nested and incorporated in the first convex member 24. And the shaped member 25.

  Therefore, the guide bodies a, b, and c are fitted into the mounting holes x, y, and z, which are recessed in advance with a space on the floor surface f below the track on which the sliding door 10 travels. The positioning claw 13a... Is placed in a state where it is prevented from coming off, the case body 14a of the positioning case 14 is fitted in the fixed cylinder 13, and the mounting plate 14b is placed on the floor surface f with almost no step. 14 is fitted into the fixed cylinder 13. Thus, the door end side guide body a, the intermediate guide body b, and the door bottom side guide body c are assembled, and the floor side guide g1 is formed on the floor surface f under the track on which the sliding door 10 travels.

  On the other hand, the door-side guide g2 includes, in the mounting groove 12, a pair of magnetic attachment means 29 and 30 provided in the groove 12a at both ends, and a guide rail 16 laid in the intermediate groove 12b between the both ends of the groove 12a. Consists of.

  Each of the magnetizing means 29 and 30 includes a support case 35, a suction table 17 stored in the support case 35, and a magnet M attached to the suction table 17. The support case 35 is made of resin and forms an elongated rectangular box in accordance with the groove shape of the both end recessed grooves 12a of the mounting groove 12, and the both end groove portions 20a of the running groove 20 are formed between the pair of opposed side plate portions 35a. As shown in FIGS. 4, 5, 6, and 7, the attachment base 32 of the suction platform 17 is opened on the upper side, and the lifting / lowering opening 34 is opened in the bottom 35 b, and the upper plate piece 35 c at the front end in the length direction On the other hand, on the base end side, a bearing hole 42 is formed on the upper side of the pair of opposed side plate portions 35a, and a pair of parallel connecting convex portions 35d are projected in a square shape.

  In the support case 35, the opposing side plate portion 35a is inclined on the inner plate surface below the bearing hole 42 so that the upper end surface gradually decreases toward the bottom portion 35b in order to receive the suction platform 17 at a predetermined inclination angle position. While the receiving step 44 is formed, a pressing rib 35e for restricting the pop-up of the suction table 17 is provided inwardly on the upper edge. In addition, the opposing side plate portion 35a is provided with a projection guide portion 18 that guides the guide projection 15 that engages with the both end groove portions 20a of the traveling groove 20 in the protruding state to the lower end edge 49 on the bottom portion 35b side. It has been.

  The suction stand 17 is made of resin, and is provided with a horizontally long box-shaped magnet storage portion 39 into which the magnet M is inserted. The part 40 is provided and the whole is formed into a gondola shape. In the magnet housing part 39, presser ribs 17c for restricting the protrusion of the magnet M project inward from each other at the upper edge of the side wall facing in the width direction. In addition, when the suction stand 17 is in a state of being locked to the receiving step portion 44 of the support case 35 at a tilt angle position where the contact portion 40 protrudes from the elevator port 34, near the proximal end of the contact portion 40. A flat surface portion 17d that is parallel to the floor surface f is formed on the bottom surface. A locking step portion for locking to the receiving step portion 44 is provided between the flat surface portion 17d on the bottom surface and the base end.

  Here, in the sliding door guide device G of the present invention, the suction stand 17 of the door-side guide g2 has an impact noise generated by the collision of the guide projections 15 in the contact portion 40 where the projected guide projections 15 abut against each other. The sound reduction structure is provided with an air layer 45 that suppresses propagation to the air. Moreover, the contact portion 40 is a hollow wall having an air layer 45 between the outer plate-like portion 40a against which the guide protrusion 15 abuts and the inner plate-like portion 40b, and the outer plate-like portion 40a against which the guide protrusion 15 abuts. When the guide protrusion 15 hits, it is elastically deformed to form a thickness that cushions the impact. In addition, the contact part 40 in the illustrated example is a hollow wall through which the air layer 45 communicates with the outside on the left and right sides in the width direction.

  The magnet M is divided into two bodies: a ferromagnetic first magnet m1 having a thick rectangular plate shape and a second magnet m2 having a weak rectangular shape even in the same rectangular plate shape.

  Therefore, the magnetizing means 29 and 30 have the first magnet m1 fitted on the distal end side of the magnet housing portion 39, the second magnet m2 fitted on the proximal end side, and the magnet M is mounted on the adsorption table 17, and the convex portion 17a. Is fitted into the bearing hole 42, the base end is pivotally supported by the support case 35, and the suction stand 17 is cantilevered in the support case 35, while the locking step 17e is received and locked to the receiving step 44. The abutting portion 40 against which the protruding guide projection 15 hits is assembled at an inclined angle position protruding a predetermined height from the elevator 34.

  As shown in FIG. 2, the guide rail 16 is formed with an intermediate groove portion 20b of the running groove 20 in a rail body 16a having a substantially square pipe shape, and the locking pieces 16b are arranged in parallel on both sides of the intermediate groove portion 20b. Set up. On the other hand, on the upper plate portion 16c of the rail body 16a, the corners on both sides in the width direction are bent in accordance with the convex shape of the coupling convex portion 35d of the magnetizing means 29 and 30 to form the coupling step 16d for coupling. doing.

  Therefore, the door-side guide g2 fits the magnetic coupling means 29 and 30 in the groove 12a on both ends of the mounting groove 12 of the sliding door 10 so that the coupling convex portions 35d face each other, and the guide rail 16 is inserted into the coupling convex portion 35d. With the engaging step 16d engaged and aligned with each other, the guide rail 16 is connected to the magnetizing means 29 and 30, and then the upper plate 35c is screwed to the groove bottom surface to assemble the door side guide. g2 is installed in the mounting groove 12. In this initial assembly state, the door-side guide g2 locks the suction stand 17 of the magnetizing means 29 and 30 with the receiving stepped portion 44 and the contact stepped portion 40 so that the contact portion 40 has a predetermined height from the elevator 34. Hold at the protruding tilt angle position.

  Now, in the illustrated door structure, when the sliding door 10 that is fully opened is pulled in the closing direction indicated by the arrow with the handle 11 as shown in FIG. The sliding door 10 starts to move in the direction and starts to close the opening. During this closing, the sliding door guide device G is provided in the middle guide body b of the floor side guide g1 and the second convex member 25 of the guide protrusion 15 rising in a nested manner. The head 25a is engaged with the locking piece 16b of the guide rail 16 to guide the sliding door 10 in the closing direction.

  Then, the sliding door 10 further advances straight in the closing direction, and the door-side magnetizing means 30 of the door-side guide g2 approaches the intermediate guide body b of the floor-side guide g1, and as shown in FIG. When the first magnet m1 of the magnet M fitted to the distal end side of the storage portion 39 reaches the guide protrusion 15, the second convex member 25 is pulled up from the first convex member 24 by magnetic force. When the second convex member 25 is pulled up, the outer first convex member 24 stands up from the positioning case 14 in a nested manner, and the head 25 a of the second convex member 25 is brought into contact with the abutment portion 40 of the suction platform 17. bump into. Then, the guide protrusion 15 is in a second convex shape while being in a state of being attracted and protruded by the second magnet m2 of the magnet M fitted to the proximal end side of the magnet storage portion 39 of the suction table 17 as the sliding door 10 travels. The head 25a of the member 25 is guided by the projection guide portion 18 while sliding on the bottom surface of the suction table 17, and is engaged with the groove portions 20a at both ends of the running groove 20, and is then locked to the projection guide portion 18 as it is. Locks to the 16 locking pieces 16b. On the other hand, at this time, the second convex member 15 of the intermediate guide body b locked to the projection guide portion 18 on the door bottom side of the guide rail 16 is detached from the door bottom side magnetizing means 30 through the lift 34. Therefore, after that, the sliding door 10 travels with the guidance of the guide protrusion 15 of the door end side guide body a and fully closes the opening.

  As described above, in the sliding door guide device G, when the sliding door 10 is traveling, the second convex member 25 and the first convex member 24 of the guide protrusion 15 are positioned with respect to the floor guide g1 by the magnetic force of the magnet M of the door side guide g2. The protrusions 19 of the case 14 are successively raised in a telescopic manner, the head 25a of the second convex member 25 is brought into contact with the contact part 40 of the door side guide g2, and the projection guide part 18 is moved in accordance with the traveling of the sliding door 10. By engaging the both end groove portions 20a of the running groove 20 with the guide of the above, and then engaging the intermediate groove portion 20b of the guide rail 16 as it is and engaging with the engaging piece 16b, the sliding door 10 can be opened and closed without sideways swinging. Guide you to go straight ahead. However, when the sliding door 10 travels, the head 25a of the guide projection 15 hits the contact portion 40 of the suction stand 17 by the magnetic force of the magnet M of the door side guide g2, and the collision sound becomes unpleasant noise each time. May occur.

  However, the sliding door guide device G according to the present invention is provided with an air layer 45 that resonates and absorbs the collision sound when the guide projection 15 abuts against the contact portion 40 of the door side guide g2, and the guide projection 15 The plate-like portion 40a outside the striking air layer 45 has a sound-reducing structure in which the guide projection 15 is molded to a thickness that elastically deforms and cushions the impact when the guide projection 15 strikes. When it strikes the outer plate-like portion 40a of the contact portion 40, the outer plate-like portion 40a is elastically deformed to buffer the impact, thereby reducing the impact sound of the guide protrusion 15 and further in the air layer 45. Thus, the collision sound can be prevented from resonating and propagating to the outside, so that the collision sound of the guide protrusion 15 can be effectively reduced. As a result, the collision sound of the guide protrusion 15 resonates widely and becomes uncomfortable. It is possible to guide the running of quietly sliding door 10 is prevented from becoming noise.

  By the way, in the sliding door guide device G, the contact portion 40 of the door side guide g2 has a sound reduction structure including a hollow wall that opens both side surfaces in the width direction so that the air layer 45 communicates with the outside. As shown in FIG. 8, the contact portion 40 may be formed as a sound reduction structure in which an air layer 45 is formed by covering with an outer plate-like portion 40 a against which the guide protrusion 15 abuts and a magnet M to block the outside. . Also in the other example shown in the figure, the contact portion 40 has a thickness that cushions the impact of the collision by elastically deforming the plate-like portion 40a on the outer side in the thickness direction of the air layer 45 against which the guide protrusion 15 abuts when the guide protrusion 15 abuts. Form a thin plate.

  Therefore, in the sliding door guide device G of the other example shown in the figure, when the guide projection 15 abuts against the thin plate-like outer portion 40a of the contact portion 40 when the sliding door 10 is traveling, the outer portion 40a is elastically deformed to cause a collision impact. Thus, the impact sound of the guide protrusion 15 is reduced, and the impact sound is resonated and absorbed in the air layer 45 and is not propagated to the outside. Sound can be effectively reduced.

  In the present invention, as shown in FIG. 8, the contact portion 40 of the door-side guide g2 is a cavity 49 covered with an outer plate-like portion 40a and an inner plate-like portion 40b against which the guide protrusion 15 abuts. Further, as shown in FIG. 9, a sound reducing structure in which a porous member 50 is provided in a cavity 49 and a large number of holes included in the porous member 50 are formed as an air layer can be provided. In the other example shown in the drawing, the contact portion 40 is formed in a thin plate shape with a thickness that cushions the impact of the collision by elastically deforming the plate-like portion 40a outside the cavity 49 against which the guide protrusion 15 abuts when the guide protrusion 15 abuts. To do. The porous member 50 is made of a highly foamable material such as urethane or a sponge.

  Therefore, in the sliding door guide device G of the other example shown in the figure, when the guide projection 15 hits the outer plate-like portion 40a of the abutting portion 40 when the sliding door 10 travels, the outer plate-like portion 40a is elastically deformed and receives an impact. The shock is reduced by absorbing the impact of the collision by the guide protrusion 15, and the multiple air layers 45 in the pores of the porous member 50 absorb the impact sound and effectively reduce the impact sound. Can sound.

  In the above embodiment, the abutting portion 40 of the door side guide g2 is elastically deformed when the guide protrusion 15 hits the plate-shaped portion 40a on the outer side in the thickness direction of the air layer 45 where the guide protrusion 15 hits, and the impact of the collision occurs. In the present invention, the attenuating portion 40 has a width that sandwiches the plate-like portion 40a outside the air layer 45 as shown in FIGS. A sound-reducing structure in which a pair of slits 51 are provided on both sides in the direction and an elastic portion 52 is formed that elastically deforms and cushions an impact when the guide protrusion 15 hits between the slits 51 can be provided.

  Therefore, in the sliding door guide device G of the other example shown in the figure, when the guide projection 15 abuts against the elastic portion 52 between the slits 51 of the contact portion 40 when the sliding door 10 travels, the elastic portion 52 is elastically deformed and the impact of the collision. Thus, the collision sound of the guide protrusion 15 is reduced, and the collision sound in the air layer 45 is prevented from resonating and propagating to the outside. Can be effectively reduced.

  Further, in the present invention, as shown in FIG. 12, the contact portion 40 of the door side guide g2 is cut into a plate-like portion 40a on the outer side in the thickness direction of the air layer 45 where the guide projection 15 abuts. It is also possible to provide a sound-reducing structure in which the elastic piece 53 in a cantilever state is provided and the elastic piece 53 is bent when the guide projection 15 abuts against the elastic piece 53 to buffer the impact.

  Therefore, in the sliding door guide device G of the other example shown in the figure, when the guide projection 15 hits the elastic piece 53 of the contact portion 40 when the sliding door 10 travels, the elastic piece 53 bends and absorbs and shocks the impact of the collision. The collision noise of the guide protrusion 15 is reduced, and the collision noise of the guide protrusion 15 is effectively reduced by suppressing the collision noise in the air layer 45 from resonating and propagating to the outside. You can also.

  By the way, the sliding door guide device G is provided with a contact portion 40 where the guide protrusion 15 of the floor side guide g1 abuts on the swingable suction stand 17 provided with the magnet M in the door side guide g2, and the movable contact thereof. The air layer 45 in which the collision noise of the guide protrusion 15 resonates is formed on the portion 40 to reduce the sound. However, the present invention is not limited to this, and the guide protrusion 15 abuts as in the following embodiment shown in FIG. The contact portion 40 may be provided on the fixed door-side guide g2, and the air layer 45 in which the collision noise of the guide protrusion 15 resonates may be formed on the contact portion 40 to reduce the sound.

  In the illustrated other example, the door-side guide g2 includes a pair of magnetic attachment means 59 and 60 provided in the recessed grooves 12a at both ends and a recessed groove 12a at both ends in the mounting groove 12 provided in the lower end surface 10a of the sliding door 10. It consists of a guide rail 56 laid in the middle concave groove. The magnetizing means 59 and 60 are provided with a guide body 54 having a U-shaped cross section in accordance with the groove shape at both end recessed grooves 12 a and a magnet M attached to the inner surface of the guide body 54. The guide main body 54 is made of an elastic resin, and the both end groove portions 20a of the traveling groove 20 are formed between the pair of opposed side plate portions 54a. The guide rail 56 is a channel material formed by bending a magnetic iron plate into a U-shaped cross-section with an open bottom surface in accordance with the groove shape of the intermediate groove in the mounting groove 12, and the intermediate groove portion 20b of the running groove 20 is formed inside. Forming. This door-side guide g2 is formed by fitting magnetic attachment means 59, 60 in both end recessed grooves 12a of the mounting recessed groove 12, connecting guide rails 56 to them and fitting them in intermediate recessed grooves, and assembling to the lower end surface 10a of the sliding door 10. .

  In view of this, the sliding door guide device G of the other example shown in the figure is provided with elastic plate portions 55 at intervals below the magnet M in the guide main body 54 of the door side guide g2, and is guided in the protruding state in both end groove portions 20a of the running groove 20. The attenuating portion 40 where the protrusion 15 abuts when the protrusion 15 is engaged, and the air layer 45 is provided in the abutting portion 40 to suppress the collision sound of the guide protrusion 15 from resonating and propagating to the outside. It has a structure. In addition, the contact portion 40 is formed in a thin plate shape having a thickness that cushions the impact by elastically deforming the elastic plate portion 55 when the guide projection 15 hits.

  Therefore, in the sliding door guide device G of the other example shown in the figure, when the guide projection 15 hits the elastic plate portion 55 of the contact portion 40 during the sliding door 10, the elastic plate portion 55 is elastically deformed to buffer the impact of the collision. As a result, the collision sound of the guide protrusion 15 is reduced, and the collision sound of the guide protrusion 15 is effectively prevented from resonating in the air layer 45 and being transmitted to the outside. The sound can be reduced.

  Further, according to the present invention, as in the following embodiment shown in FIG. 14, the contact portion 40 against which the guide protrusion 15 abuts is provided in the fixed door side guide g2, and the air layer 45 is formed in the contact portion 40 to guide the guide. It is also possible to reduce the collision sound of the protrusion 15.

  In the illustrated other example, the guide protrusion 15 of the floor side guide g1 is formed in a pin shape having a locking groove 25b on the outer periphery of the lower portion of the head portion 25a at the front end, while the door side guide g2 has a protruding height of the guide protrusion 15. Correspondingly, a thin magnet M is attached to the inner surface of the web of the guide main body 54, an elastic plate portion 55 is provided below the magnet M with a gap therebetween, and the guide protrusions protrude in both end groove portions 20a of the running groove 20. The sound reduction structure is provided with an air layer 45 that forms a contact portion 40 that abuts when the 15 engages and suppresses the collision sound of the guide protrusion 15 from resonating and propagating to the outside in the contact portion 40. It has become.

  Therefore, in the sliding door guide device G of the other example shown in the figure, when the guide projection 15 hits the elastic plate portion 55 of the abutting portion 40 when the sliding door 10 is running, the elastic plate portion 55 is elastically deformed to buffer the impact of the collision. As a result, the collision sound of the guide protrusion 15 is reduced, and the collision sound of the guide protrusion 15 is effectively prevented from resonating in the air layer 45 and being transmitted to the outside. The sound can be reduced.

  By the way, as for the above sliding door guide apparatus G, the air layer 45 which absorbs at least the collision sound of the guide protrusion 15 is formed in the contact part 40 with which the guide protrusion 15 of the floor side guide g1 abuts in the door side guide g2. Although the present invention has a sound reduction structure, the present invention forms a cavity that is not shown in the figure, and that is covered by an outer portion and an inner portion where the guide protrusion 15 abuts against the contact portion 40 in the door side guide g2. When a shock absorber such as rubber, gel, buffer solution or the like is provided in the cavity and the guide protrusion 15 hits a portion outside the shock absorber, the guide protrusion 15 is only absorbed by buffering the shock with the shock absorber. It is also possible to reduce the collision sound.

  Therefore, in the sliding door guide device G of this other example, when the guide projection hits the outer part of the abutting portion during traveling of the sliding door, the impact absorbing material absorbs the shock, thereby buffering it. The impact noise of the guide protrusion can be reduced and reduced.

F Floor f Floor G Sliding door guide device g1 Floor side guide g2 Door side guide M Magnet 10 Sliding door 15 Guide protrusion 20 Running groove 20a Both ends groove 20b Intermediate groove 40 Abutting portion 45 Air layer 49 Cavity 50 Porous member 51 Slit 52 Elasticity Part 53 elastic piece 55 elastic plate part

Claims (5)

A guide for the floor side guide that is inserted in the floor surface under the track on which the sliding door travels so that it can be moved in and out by a magnetic force, with a gap between it and the floor surface. A projection is engaged with a running groove of a door-side guide formed on the lower end surface of the sliding door to guide the running of the sliding door, and the door-side guide attracts the guide projection by magnetic force, and the magnet In a sliding door guide device that has a suction stand that is mounted and pivotally supported at the base end in the length direction so as to be swingable, and is locked at an inclination angle position where the length direction front end protrudes a predetermined height .
The door-side guide includes a contact portion that abuts against the guide protrusion in a protruding state when the guide protrusion engages with both end groove portions of the running groove, and a collision sound that the guide protrusion abuts on the corresponding contact portion. A sliding door guide device characterized by forming an air layer that resonates with each other to reduce sound.   In the door-side guide, the contact portion is formed by molding a portion on the outer side in the thickness direction of the air layer where the guide protrusion abuts to a thickness that elastically deforms when the guide protrusion abuts to buffer an impact. The sliding door guide device according to claim 1, wherein:   In the door-side guide, the contact portion is provided with a pair of slits on both sides in the width direction sandwiching a portion on the outer side in the thickness direction of the air layer where the guide protrusion abuts, and the guide protrusion is between the slits. The sliding door guide device according to claim 1, wherein an elastic portion is formed that elastically deforms when it hits and cushions an impact.   In the door side guide, the abutment portion is provided with a cantilevered elastic piece with a tongue-shaped notch in the outer portion in the thickness direction of the air layer where the guide projection abuts, and the guide projection The sliding door guide device according to claim 1, wherein the elastic piece bends and shocks are shocked when the abuts against the elastic piece.   In the door side guide, the abutting portion forms a cavity covered with an outer portion and an inner portion where the guide protrusions abut, and a porous member is provided in the cavity so that the inside of the porous member is inside. The sliding door guide device according to claim 1, wherein a number of air holes included in the air hole are configured as an air layer.

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