JP4127549B2 - Upper rail member mounting structure - Google Patents

Description

  The present invention relates to a structure for attaching an upper rail member to a base member fixed to an upper frame as an automatic door mounting frame.

  Conventionally, in an automatic door device, a hanger roller provided on an automatic opening / closing door is suspended movably on an upper rail formed integrally with a base member fixed to an upper frame as an automatic door mounting frame. It has been known. In the automatic door device having such a configuration, the upper rail on which the hanger roller travels wears with the operation of the automatic opening / closing door. The durability of the upper rail depends greatly on the weight of the automatic opening / closing door, the distance traveled by a single opening / closing operation, and the opening / closing frequency, but if the upper rail is worn, the base member and the upper rail In the configuration in which the upper and lower rails are integrated, the entire base member including the upper rail has to be replaced, which is not only expensive, but also requires considerable labor for the replacement work.

  Therefore, in recent years, an upper rail member that is separate from the base member is fixed to the base member so as to be removable with a screw or the like, and when the upper rail member is worn, only the upper rail member is removed from the base member. Is removed and replaced with a new upper rail member.

However, the conventional mounting structure of the upper rail member in which the base member and the upper rail member are separated from each other has problems such as very poor workability. Therefore, the applicant of the present application described in Patent Document 1 as an engagement structure for the base member as an extremely superior workability in the mounting structure of the upper rail member in which the base member and the upper rail member are separated. After the mounting plate portion of the upper rail member is inserted into the groove from the opening, a fixing screw is screwed into the fixing screw hole of the mounting plate portion, and the screw tip surface is used for the engagement. By screwing and pressing the bottom of the groove, the upper engagement portion and the lower engagement portion of the upper rail member are changed to the upper engagement portion and the lower engagement portion formed in the engagement groove. An upper rail member mounting structure is proposed in which the mounting plate portion is pressed and engaged.
Japanese Patent No. 2879557

  By the way, in the automatic door device, when the automatic opening / closing door opens and closes, the hanger roller comes into contact with a door stopper provided on the upper rail member. Therefore, in the mounting structure of the upper rail member described in Patent Document 1, when the hanger roller contacts the door stopper, the force in the moving direction of the hanger roller applied to the upper rail member is If it is stronger than the fixing force with screws, the upper rail member may be rattled.

  The problem to be solved by the present invention is excellent in mounting workability and can reliably prevent rattling of the upper rail member attached to the base member fixed to the upper frame as the automatic door mounting frame. The object is to realize a mounting structure of the upper rail member.

In order to solve the above-mentioned problems, the invention described in claim 1 movably supports a hanger roller provided on an automatic opening / closing door on a base member fixed to an upper frame as an automatic door mounting frame. A structure for attaching an upper rail member having a rail portion,
Wherein the upper rail member, said continuously connected to the rail portion in the moving direction of the hanger rollers provided a long mounting plate portion, said upper rail member, form a form depending on the said mounting plate portion and the rail portion,
The mounting plate portion is formed with fixing screw holes for screwing fixing screws for fixing the upper rail member to the base member, and the upper plate is attached to both edges in the width direction of the mounting plate portion. The subordinate and the subordinate division
The base member is
An upper opening that opens on the mounting side of the automatic opening and closing door , forms an opening in which the mounting plate portion can be attached and detached, and the upper engagement portion engages with both ends in the width direction across the opening. An engaging groove for engaging and attaching the attachment plate portion formed by forming a fitting portion and a lower engagement portion to which the lower engagement portion is engaged is provided along the movement direction of the hanger roller. Ready,
The upper engagement portion of the engagement groove is engaged with the upper engagement notch, and the upper engagement recess formed on the back side of the upper engagement notch. A lower engagement recess is formed in the lower engagement portion of the engagement groove,
A groove portion having a width that is wider than the diameter of the screw portion of the fixing screw in the longitudinal direction is formed in the bottom portion of the groove, and a base wall is formed on the upper wall surface and the lower wall surface facing the groove portion. A pair of locking pieces formed integrally with the member main body protrude so as to face each other with a predetermined interval ,
The pair of locking pieces extend near the opening of the groove along the longitudinal direction of the groove from the proximal end toward the lower wall surface or the upper wall facing each other. It is formed by bending toward the bottom part, and the distance between the pair of locking pieces is narrower than the diameter of the screw part of the fixing screw, and when the fixing screw is inserted into the groove part, It is formed to a width that can be locked to the screw,
The base member is formed of a material that allows the pair of locking pieces to be bent toward the back of the groove when the fixing screw is inserted into the groove.
Was charged to the mounting plate portion from the opening to the groove strip for fitting the engagement, loosely the lower engaging hook part and the upper engaging hook part, the lower engagement fitting portion and the front SL upper engagement fitting portion Then, the fixing screws screwed into the fixing screw holes and penetrated to the base member side have a part in the longitudinal direction of the pair of locking pieces toward the back side of the groove portion. While being bent, the fixing screw is inserted into the groove, screwed into the pair of locking pieces and locked, and the screw is fixed in a state where the screw tip surface is in contact with the bottom of the groove. The upper engagement portion and the lower engagement portion are configured to be engaged with the upper engagement portion and the lower engagement portion by being pressed and locked to each other by screwing and pressing.

In the invention according to claim 1, the upper engagement portion and the lower engagement portion are pressed and locked to the upper engagement portion and the lower engagement portion with the fixing screws, respectively. The mounting plate portion is fixed to the base member. In this case, said fixing screw, said engagement and is engaged by screwed into locking pieces, moreover the locking piece portion in the longitudinal direction of the locking pieces are bent toward the back side of the groove Since the locking piece is present in a part of the periphery of the fixing screw , the upper rail member is attached to the base member in the moving direction of the hanger roller by the fixing screw. Even if a force in the moving direction of the hanger roller is applied, the ratchet roller does not rattle.

According to a second aspect of the present invention, in the first aspect, the groove portion can be crushed by the distal end portion of the fixing screw when the fixing screw is brought into contact with the bottom portion and screwed and pressed. A bottom ridge formed of a material is provided along the longitudinal direction of the groove .

According to the invention described in claim 2, since the bottom ridge portion that remains without being crushed exists in a part of the periphery of the front end portion of the fixing screw, The tip of the fixing screw is stably held.

  According to the present invention, the upper rail member is excellent in mounting workability, and the upper rail member is firmly fixed to the base member against the force applied in the moving direction of the hanger roller by the fixing screw. Therefore, even if a force in the moving direction of the hanger roller is applied to the upper rail member, the rattling can be reliably prevented.

Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.
First, a first embodiment of the present invention will be described. 1 is a partially longitudinal schematic view showing a first embodiment of an upper rail member mounting structure according to the present invention, FIG. 2 is a partially enlarged longitudinal sectional view of FIG. 1, and FIG. 3 is a base shown in FIG. FIG. 4 and FIG. 5 are explanatory views of a base member mounting operation.

  First, the structure of each part in the attachment structure of the upper rail member of this embodiment is demonstrated. In the drawing, an upper rail member 3 for movably supporting a hanger roller 2 provided on an automatic opening / closing door 1 is attached to a base member 5 fixed to an upper frame 4 as an automatic door attachment frame. ing.

  The hanger roller 2 is supported movably on the rail portion 6 of the upper rail member 3 and moves on the rail 7 of the rail portion 6.

  The upper rail member 3 has a mounting plate portion 8 connected to the rail portion 6. The mounting plate portion 8 is elongated in the moving direction of the hanger roller 2, and the upper rail member 3 is formed in a substantially U shape in sectional view by the mounting plate portion 8 and the rail portion 6. . The upper rail member 3 is provided with a door stopper (not shown).

  The mounting plate portion 8 is formed with a fixing screw hole 10 into which a fixing screw 9 for fixing the upper rail member 3 to the base member 5 is screwed. Further, an upper engaging portion 11 and a lower engaging portion 12 are formed at both edges in the width direction of the mounting plate portion 8.

  The base member 5 has an engaging groove 13 that is open to the attachment side of the automatic opening / closing door 1 and that engages and attaches the attachment plate portion 8. The engaging groove 13 is formed along the moving direction of the hanger roller 2 and has an opening 14 through which the mounting plate 8 can be attached and detached. The engaging groove 13 has an upper engaging portion 15 to which the upper engaging portion 11 is engaged, and the lower engaging portion 12 at both ends in the width direction across the opening 14. A lower engaging portion 16 to be engaged is formed. The upper engagement portion 15 includes an upper engagement notch portion 15a for engaging the upper engagement portion 11, and an upper engagement recess portion 15b formed on the back side of the upper engagement notch portion 15a. Has been. The lower engagement portion 16 includes a lower engagement recess 16a. Here, the upper engaging portion 11 and the lower engaging portion 12 are engaged when the mounting plate portion 8 is engaged with the engaging groove 13 with the fixing screw 9 as will be described later. The upper contact surface 15c of the upper engagement notch 15a (surface facing the groove bottom 17) and the lower contact surface 16b of the lower engagement recess 16a (surface facing the groove bottom 17). ).

  A groove portion 18 is formed in the groove groove bottom portion 17 along the longitudinal direction thereof. The groove width of the groove portion 18 is formed such that the fixing screw 9 can be screwed. Here, a plurality of protrusions 21 along the longitudinal direction of the groove 18 are formed in the depth direction of the groove 18 on the upper wall surface 19 and the lower wall surface 20 facing the groove 18. The fixing screw 9 comes into contact with the protruding portion 21 and is screwed into the groove portion 18 while breaking the protruding portion 21. Here, although the said protrusion part 21 becomes a mountain shape in this example, of course in this invention, it is not restricted to such a shape.

  Next, the mounting operation of the upper rail member 3 will be described. First, the mounting plate portion 8 is inserted into the engaging groove 13 from the opening 14 so that the upper engaging portion 11 and the lower engaging portion 12 are respectively connected to the upper engaging portion 15. And the lower engagement portion 16 is loosely fitted. Specifically, as shown in FIG. 5, the mounting plate portion 8 is inclined from the upper engaging portion 11 side by inclining the upper engaging portion 11 side toward the engaging groove 13. The engaging groove is inserted into the engaging groove 13, and the upper engaging portion 11 is inserted into the upper engaging recess 15b and loosely fitted. Next, as shown in FIG. 6, the lower engagement portion 12 is inserted to the position just above the lower engagement recess 16a and dropped into the lower engagement recess 16a to be loosely fitted.

  Then, from the state in which the upper engaging portion 11 and the lower engaging portion 12 are loosely fitted to the upper engaging portion 15 and the lower engaging portion 16, respectively, the fixing screw hole 10 is After the fixing screw 9 is screwed and the tip of the fixing screw 9 is penetrated to the base member 5 side, the fixing screw 9 is screwed into the groove portion 18. The fixing screw 9 is screwed into the groove 18 while breaking a part of the protrusion 21 in the longitudinal direction, and the screw tip surface 9a is brought into contact with the bottom 18a of the groove 18. Then, the fixing screw 9 is rotated idly (ie, screwed and pressed) while pressing the screw tip surface 9a against the bottom portion 18a and further destroying the protruding portion 21, thereby fixing the screw. Since the fixing screw 9 is screwed into the hole 10, the mounting plate portion 8 moves toward the upper contact surface 15c and the lower contact surface 16b. Then, the upper locking portion 11 and the lower locking portion 12 rotate the fixing screws 9 until they press against the upper contact surface 15c and the lower contact surface 16b, respectively, and the upper locking portion The portion 11 and the lower engagement portion 12 are pressed and locked to the upper contact surface 15c and the lower contact surface 16b, respectively. Thereby, the upper engagement portion 11 and the lower engagement portion 12 are engaged with the upper engagement portion 15 and the lower engagement portion 16, and the mounting plate portion 8 is fixed to the base member 5. (See FIG. 2).

  As described above, an upper rail member mounting structure with excellent mounting workability can be obtained. Further, the fixing screw 9 is screwed into the groove portion 18, and the fixing screw 9 is screwed into the groove portion 18 while destroying a part in the longitudinal direction of each protrusion 21. As a result, the protrusions 21 that remain without being broken are present in a part of the periphery of the fixing screw, so that the upper rail member 3 is attached to the base member 5 by the fixing screw 9. The hanger roller 2 is firmly fixed to the force applied in the moving direction. Accordingly, when the automatic opening / closing door 1 is opened and closed, the hanger roller 2 abuts on the door stopper provided on the upper rail member 3, and the force in the moving direction of the hanger roller 2 is applied to the upper rail member 3. Even if it adds, the rattling can be prevented reliably.

  Furthermore, the load by the automatic opening / closing door 1 is applied to the lower side of the upper rail member 3 (lower side of the rail portion 6), and tries to press the fixing screw 9 against the bottom portion 18a of the groove portion 18. Therefore, loosening of the fixing screw 9 can be effectively prevented.

  Next, a second embodiment of the present invention will be described. 6 is a partially enlarged longitudinal sectional view of the base member in the mounting structure of the upper rail member according to the second embodiment of the present invention, and FIG. 7 is an explanatory view of the mounting operation of the upper rail member to the base member shown in FIG. FIG. 8 is a longitudinal sectional view showing an attachment state of the upper rail member to the base member shown in FIG. In the following description, only different parts from the first embodiment will be described, and the same components as those in the first embodiment will be denoted by the same reference numerals and description thereof will be omitted.

  In FIG. 6, a groove portion 30 is formed along the longitudinal direction of the groove groove bottom portion 17 of the engaging groove groove 13 of the base member 5. The groove portion 30 is formed to have a groove width wider than the diameter of the screw portion of the fixing screw 9 (see FIGS. 7 and 8) for fixing the upper rail member 3 to the base member 5.

  A pair of locking pieces 34, 35 formed integrally with the base member main body 33 protrude on the opposing upper wall surface 31 and lower wall surface 32 of the groove portion 30 so as to face each other with a predetermined gap therebetween. It is installed. The pair of locking pieces 34 and 35 are provided in the vicinity of the opening of the groove portion 30 along the longitudinal direction of the groove portion 30. The lower wall surface 32 or the upper portion facing each other from the base end portion. It extends toward the wall surface 31 and has a shape in which the tip is bent toward the bottom 30 a of the groove 30. The interval between the pair of locking pieces 34 and 35 is narrower than the diameter of the screw portion of the fixing screw 9. When the fixing screw 9 is inserted into the groove portion 30, The spacing is such that the pair of locking pieces 34 and 35 can be locked. Here, the base member 5 is configured such that the pair of locking pieces 34 and 35 can be bent toward the inner side of the groove 30 by the fixing screw 9 inserted into the groove 30. For example, it is made of a material such as aluminum. The pair of locking pieces 34 and 35 are bent by the fixing screw 9 and locked to the fixing screw 9.

  Next, the mounting operation of the upper rail member 3 will be described. First, in the same manner as in the first embodiment, the mounting plate portion 8 is inserted into the engaging groove 13 from the opening 14, and the upper engaging portion 11 and the lower engaging portion are inserted. 12 are loosely fitted to the upper engaging portion 15 and the lower engaging portion 16, respectively. Next, the fixing screw 9 is screwed into the fixing screw hole 10 of the mounting plate portion 8 so that the tip of the fixing screw 9 penetrates to the base member 5 side, and as shown in FIG. The screw tip surface 9a of the fixing screw 9 is brought into contact with the pair of locking pieces 34 and 35. Then, the fixing screw 9 is further rotated from this state, and a part of the pair of locking pieces 34 and 35 in the longitudinal direction is bent toward the back side of the groove 30 with the fixing screw 9. Then, the fixing screw 9 is inserted into the groove portion 30, and the screw tip surface 9 a is brought into contact with the bottom portion 30 a of the groove portion 30. As a result, the fixing screws 9 are screwed into and locked with the pair of locking pieces 34 and 35 whose longitudinal portions are bent toward the back side of the groove 30.

  Further, the fixing screw 9 is screwed into the fixing screw hole 10 by rotating the fixing screw 9 while pressing the screw tip surface 9a against the bottom 30a (that is, screwing and pressing). Therefore, the mounting plate portion 8 moves toward the upper contact surface 15c and the lower contact surface 16b. Then, the upper locking portion 11 and the lower locking portion 12 rotate the fixing screws 9 until they press against the upper contact surface 15c and the lower contact surface 16b, respectively, and the upper locking portion The portion 11 and the lower engagement portion 12 are pressed and locked to the upper contact surface 15c and the lower contact surface 16b, respectively. Thereby, as shown in FIG. 8, the upper engagement portion 11 and the lower engagement portion 12 are engaged with the upper engagement portion 15 and the lower engagement portion 16, and the mounting plate portion 8 is It is fixed to the base member 5.

  As described above, an upper rail member mounting structure with excellent mounting workability can be obtained. Further, the fixing screw 9 is screwed into and locked with the pair of locking pieces 34 and 35, and a part of the pair of locking pieces 34 and 35 in the longitudinal direction is locked with the groove 30. The pair of locking pieces 34 and 35 are present in a part of the periphery of the fixing screw 9 by being bent toward the back side of the screw and screwed into the pair of locking pieces 34 and 35. The upper rail member 3 is firmly fixed to the base member 5 by the fixing screw 9 against the force applied in the moving direction of the hanger roller 2. Thereby, when the automatic opening / closing door 1 is opened and closed, the hanger roller 2 comes into contact with the door stopper provided on the rail member 3, and the force in the moving direction of the hanger roller 2 is applied to the upper rail member 3. Even if it adds, the rattling can be prevented reliably.

  In the second embodiment described above, the bottom protrusion 30 may be provided on the bottom 30a of the groove 30 along the longitudinal direction of the groove 30 as shown in FIG. A part of the bottom ridge 36 is crushed by the screw tip surface 9 a of the fixing screw 9 when the upper rail member 3 is fixed to the base member 5. Specifically, a screw tip surface 9a of the fixing screw 9 inserted into the groove 30 is brought into contact with the bottom ridge 36, and from this state, the fixing screw 9 is crushed while the bottom ridge 36 is crushed. 9 is screwed and pressed. By screwing and pressing the fixing screw 9 in this manner, the upper engaging portion 11 and the lower engaging portion are in a state where the screw tip surface 9a of the fixing screw 9 reaches the bottom portion 30a of the groove portion 30. The abutting portion 12 is pressed and locked to the upper contact surface 15 c and the lower contact surface 16 b, respectively, and the mounting plate portion 8 is fixed to the base member 5. By doing in this way, the bottom ridge portion 36 that remains without being crushed exists in a part of the periphery of the front end portion of the fixing screw 9. The tip of 9 is held stably.

  In addition, it goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.

It is a partial longitudinal cross-sectional schematic view which shows 1st embodiment of the attachment structure of the upper rail member of this invention. It is a partially expanded longitudinal cross-sectional view of FIG. It is a partially expanded longitudinal cross-sectional view of the base member shown in FIG. It is explanatory drawing of the attachment operation | work of a base member. It is explanatory drawing of the attachment operation | work of a base member. It is a partial expanded longitudinal cross-sectional view of the base member in the attachment structure of the upper rail member of 2nd embodiment of this invention. It is explanatory drawing of the attachment operation | work of the upper rail member to the base member shown in FIG. It is a longitudinal cross-sectional view which shows the attachment state of the upper rail member to the base member shown in FIG. It is a partially expanded longitudinal cross-sectional view which shows the modification of the base member shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic open / close door 2 Hanger roller 3 Upper rail member 4 Upper frame 5 Base member 6 Rail part 7 Rail 8 Mounting plate part 9 Fixing screw 9a Screw front end surface 10 Fixing screw hole 11 Upper engaging part 12 Lower engaging part 13 Engagement groove 14 Opening portion 15 Upper engagement portion 15a Upper engagement notch 15b Upper engagement recess 15c Upper contact surface 16 Lower engagement portion 16a Lower engagement recess 16b Lower contact surface 17 Lower groove contact portion 18 groove portion 18a bottom portion 19 upper wall surface 20 lower wall surface 21 ridge portion 30 groove portion 30a bottom portion 31 upper wall surface 32 lower wall surface 33 base member main body 34, 35 locking piece 36 bottom ridge portion

Claims (2)

A structure for attaching an upper rail member having a rail portion that movably supports a hanger roller mounted on an automatic opening / closing door to a base member fixed to an upper frame as an automatic door mounting frame,
Wherein the upper rail member, said continuously connected to the rail portion in the moving direction of the hanger rollers provided a long mounting plate portion, said upper rail member, form a form depending on the said mounting plate portion and the rail portion,
The mounting plate portion is formed with fixing screw holes for screwing fixing screws for fixing the upper rail member to the base member, and the upper plate is attached to both edges in the width direction of the mounting plate portion. The subordinate and the subordinate division
The base member is
An upper opening that opens on the mounting side of the automatic opening and closing door , forms an opening in which the mounting plate portion can be attached and detached, and the upper engagement portion engages with both ends in the width direction across the opening. An engaging groove for engaging and attaching the attachment plate portion formed by forming a fitting portion and a lower engagement portion to which the lower engagement portion is engaged is provided along the movement direction of the hanger roller. Ready,
The upper engagement portion of the engagement groove is engaged with the upper engagement notch, and the upper engagement recess formed on the back side of the upper engagement notch. A lower engagement recess is formed in the lower engagement portion of the engagement groove,
A groove portion having a width that is wider than the diameter of the screw portion of the fixing screw in the longitudinal direction is formed in the bottom portion of the groove, and a base wall is formed on the upper wall surface and the lower wall surface facing the groove portion. A pair of locking pieces formed integrally with the member main body protrude so as to face each other with a predetermined interval ,
The pair of locking pieces extend near the opening of the groove along the longitudinal direction of the groove from the proximal end toward the lower wall surface or the upper wall facing each other. It is formed by bending toward the bottom part, and the distance between the pair of locking pieces is narrower than the diameter of the screw part of the fixing screw, and when the fixing screw is inserted into the groove part, It is formed to a width that can be locked to the screw,
The base member is formed of a material that allows the pair of locking pieces to be bent toward the back side of the groove when the fixing screw is inserted into the groove.
Was charged to the mounting plate portion from the opening to the groove strip for fitting the engagement, loosely the lower engaging hook part and the upper engaging hook part, the lower engagement fitting portion and the front SL upper engagement fitting portion Then, the fixing screws screwed into the fixing screw holes and penetrated to the base member side have a part in the longitudinal direction of the pair of locking pieces toward the back side of the groove portion. While being bent, the fixing screw is inserted into the groove, screwed into the pair of locking pieces and locked, and the screw is fixed in a state where the screw tip surface is in contact with the bottom of the groove. An upper part characterized in that the upper engaging part and the lower engaging part are pressed and locked to the upper engaging part and the lower engaging part, respectively, by screwing and pressing. Rail member mounting structure. The groove is
A bottom protrusion formed of a material that can be crushed by the tip of the fixing screw when the fixing screw is brought into contact with the bottom and screwed and pressed along the longitudinal direction of the groove. Provided
The upper rail member mounting structure according to claim 1, wherein the upper rail member is attached.

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