JP2007002466A - Runner device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the force of locking a hanging bar, attached to a runner body, to a connecting member attached to a door panel. <P>SOLUTION: This runner device is equipped with the hanging bar 3 which is attached to the runner body 3 travelling on a rail R, and the connecting member 4 which is attached to the door panel D. The hanging bar 3 and the connecting member 4 are attached to and detached from each other by moving the connecting member 4 in two directions, that is, the radial and axial directions of the hanging bar 3. The hanging bar 3 is provided with a large-diameter part 31 which has a relatively large diameter, and a small-diameter part 33 which has a relatively small diameter. The connecting member 4 is provided with a fitting part 41 which is fitted and attached to/detached from the large-diameter part 31 of the hanging bar 3 by axially moving the hanging bar 3, and a communication part 42 which permits the passage of the small-diameter part 33 of the hanging bar 3 by radially moving the hanging bar 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention belongs to a technical field related to an upper-running runner device that hangs an upper part of a door plate such as a folding door or a sliding door and guides opening and closing of the folding door and the sliding door.

  Recently, in the hanging type runner device, a hanging shaft is attached to a runner body (running member) that travels on a rail disposed on a ceiling, a duck, etc., and a connecting member is attached to a door plate so that the hanging shaft and the connecting member can be attached and detached. A door plate (attachment member) that can be set later on the runner body (hanging shaft) set on the rail is provided. Since this set operation must be performed while supporting a heavy door plate, it is desired that the suspension shaft and the connecting member can be attached and detached with one touch.

Conventionally, as a runner device configured to be able to attach and detach the suspension shaft and the connecting member with one touch, for example, the following ones are known.
JP 2005-68855 A Japanese Patent Laid-Open No. 2005-68856 discloses that the connecting member is moved in two directions, the radial direction and the axial direction of the suspension shaft, so that the connection member and the suspension shaft can be attached and detached with one touch. A runner device is described which is a suitable set when there is not enough room.

  The runner device according to Patent Documents 1 and 2 locks the connecting member and the suspension shaft by moving the connecting member in the radial direction of the suspension shaft, and moves the connecting member in the axial direction of the suspension shaft, Lock the suspension shaft. The locking of the connecting member and the suspension shaft is achieved by sandwiching the shaft portion of the suspension shaft with an elastic piece and locking the flange portion formed at the lower end portion of the suspension shaft with a locking claw that is elastically pressed by a spring. Made.

  In the runner device according to Patent Documents 1 and 2, the suspension shaft and the connection member are only locked by elasticity, so that the locking force is weak and the suspension shaft and the connection member may be unexpectedly detached. There is a problem that there is.

  The present invention has been made in consideration of such problems, and provides a runner device having an increased locking force for locking between a suspension shaft attached to a runner body and a connecting member attached to a door plate. Is an issue.

  In order to solve the above-described problems, the runner apparatus according to the present invention employs means described in each of the claims.

  That is, according to the first aspect of the present invention, the suspension shaft attached to the runner main body traveling on the rail and the connecting member attached to the door plate are moved, and the connecting member is moved in two directions, the radial direction and the axial direction of the suspension shaft. In the runner device for attaching and detaching the suspension shaft and the connecting member, the suspension shaft is provided with a large-diameter portion having a relatively large diameter and a small-diameter portion having a relatively small diameter, and the connecting member moves in the axial direction of the suspension shaft. And a connecting portion that is fitted to and detached from the large-diameter portion of the suspension shaft and a communication portion that allows passage of the small-diameter portion of the suspension shaft by movement in the radial direction of the suspension shaft.

  In this means, when the connecting member and the suspension shaft are locked, the large-diameter portion of the suspension shaft and the fitting portion of the connection member are mechanically coupled by fitting, and at least the connecting member and suspension in the radial direction of the suspension shaft are connected. The locking force for locking the shaft is strengthened.

  Further, according to claim 2, in the runner device according to claim 1, the suspension shaft is provided with a large-diameter portion at the upper portion, a small-diameter portion at the lower portion, and a flange having a diameter larger than the diameter of the small-diameter portion near the lower end of the small-diameter portion. The connecting member has elasticity, and the connecting member is elastically opposed to the shaft center of the suspension shaft, and the two pieces are arranged so as to be narrowed downward and locked to the flange portion of the suspension shaft. A piece is provided.

  In this means, at least the locking force for locking the connecting member and the suspension shaft in the axial direction of the suspension shaft is reinforced by the engagement between the flange portion of the suspension shaft and the locking piece of the connection member.

  According to a third aspect of the present invention, in the runner device according to the first or second aspect, the suspension shaft is provided with a protrusion at a lower end portion, and the connecting member is provided with a seat for fitting with the protrusion of the suspension shaft. To do.

  In this means, the engagement between the projection of the suspension shaft and the seat of the connection member is related to the connection member and suspension shaft in the radial direction of the suspension shaft by the engagement between the large diameter portion of the suspension shaft and the engagement portion of the connection member. Helps to strengthen the locking force when stopping.

  According to a fourth aspect of the present invention, in the runner device of the second or third aspect, the connecting member is provided with a mountain-shaped unlocking body facing the slidable up and down direction below the locking piece.

  In this means, by sliding the lock release body upward, the engagement piece of the connecting member can be expanded and the engagement with the flange portion of the suspension shaft can be released.

  According to a fifth aspect of the present invention, in the runner device of the fourth aspect, the locking piece of the connecting member is formed in an elongated shape extending in the radial direction of the suspension shaft from the engagement portion with the flange portion of the suspension shaft, and unlocked. The body is characterized in that a mountain-shaped contact surface that contacts the locking piece of the connecting member is formed in a long shape corresponding to the locking piece of the connecting member.

  According to this means, the abutment surface of the unlocking body abuts on the engaging piece of the connecting member over a wide area and expands.

  In the runner device according to the present invention, when the connecting member and the suspension shaft are locked, the large-diameter portion of the suspension shaft and the fitting portion of the connection member are mechanically coupled to each other, and at least in the radial direction of the suspension shaft. Since the locking force for locking the connecting member and the suspension shaft is reinforced, the locking force for locking the suspension shaft attached to the runner body and the connecting member attached to the door plate is increased.

  Hereinafter, the best mode for carrying out a runner apparatus according to the present invention will be described with reference to the drawings.

  In this embodiment, as shown in FIGS. 1 and 2, both ends of the U-shape are bent inward to form two running surfaces Ra, and the opening Rb is directed downwards so as to be linear on the ceiling, duck, etc. A vehicle traveling on a rail R is shown.

  This form is comprised by each part of the traveling wheel 1, the runner main body 2, the suspension shaft 3, the connection member 4, and the lock release body 5.

  In the traveling wheel 1, wheels are rotatably supported at both ends of an axle fixed to the runner body 2 via bearings (not shown).

  The runner main body 2 is formed of a two-shaft four wheel that is formed in an elongated shape in the length direction of the rail R and is accommodated inside the rail R, and two traveling wheels 1 are arranged with a gap (in the front-rear direction). The stable rolling structure of the wheel 1 smoothly runs inside the rail R.

  The suspension shaft 3 has a cylindrical shaft as a basic shape, and is provided with a large diameter portion 31, a taper portion 32, a small diameter portion 33, a flange portion 34, a taper portion 35, and a protrusion 36 from the top. The large diameter portion 31 is supported by the runner body 2 via a vertical adjustment mechanism (not shown) that adjusts the suspension height of the door plate D. The tapered portion 32 forms an annular inclined surface that is continuous with the large-diameter portion 31 and reduces the diameter of the large-diameter portion 31 downward. The small diameter portion 33 is formed continuously with the tapered portion 32 and has a diameter smaller than that of the large diameter portion 31 and longer than that of the large diameter portion 21. The flange portion 34 is provided at the lower end portion of the small diameter portion 34 and has a diameter larger than the diameter of the small diameter portion 34. The tapered portion 35 forms an annular inclined surface that is continuous with the flange portion 34 and reduces the diameter of the flange portion 34 downward. The protrusion 36 has a conical body 36 b formed at the lower end of a cylindrical body 36 a continuous with the tapered portion 35.

  The connecting member 4 is formed in a cup shape that is attached and fixed to the door plate D with screws or the like, and has a fitting portion 41, a communicating portion 42, an expanding portion 43, a window portion 44, a locking piece 45, a receiving seat 46, a lock. A release body mounting groove 47 is provided. The fitting portion 41 has a diameter substantially the same as the diameter of the large-diameter portion 31 of the suspension shaft 3 and a shaft length of the small-diameter portion 33 of the suspension shaft 3 in the upper half on the far side of the substantially central portion of the connecting member 4. It is formed in a cylindrical shape having an axial length. The axis of the fitting portion 41 is set in the vertical direction. The communication part 42 is formed in a vertical groove having a width narrower than the diameter of the fitting part 41 and wider than the diameter of the small-diameter part 33 of the suspension shaft 3, communicated with the fitting part 41 on the back side and externally on the front side. Communicate. The expansion part 43 is formed in the taper surface which expanded the communication part 42 toward the exterior. The window portion 44 is formed in a cylindrical shape having an axis that communicates with the fitting portion 41, the communication portion 42, and the expansion portion 43 in the lower half portion of the connecting member 4 and that is orthogonal to the axis of the fitting portion 41. . The locking pieces 45 are elastically protruded relative to each other through the fitting portion 41, the communication portion 42, and the expanding portion 43 so as to become narrower from the wall surface on the upper side of the window portion 44 toward the obliquely lower side. It is formed in a piece. The locking piece 45 is formed in a long shape extending from below the fitting portion 41 to below the expanding portion 43. The seat 46 is formed in a cylindrical shape having a diameter substantially the same as the diameter of the columnar body 36 a of the protrusion 36 of the suspension shaft 3 on the bottom wall of the window portion 44 on the extension line of the axis of the fitting portion 41. The unlocking body mounting groove 47 is carved in the vertical direction on the side wall surface on the front side of the window portion 44.

  The unlocking body 5 is formed in a mountain shape that is slidably assembled in the unlocking body mounting groove 47 of the connecting member 4, and is provided with a contact surface 51 and a sliding projection 52. The contact surface 51 is formed of two chevron surfaces whose both sides are inclined downward with the tops directly below the center lines of the communication portion 42 and the expanding portion 43 of the connecting member 4. The contact surface 51 is formed in a long shape corresponding to the locking piece 45 of the connecting member 4. The sliding protrusion 52 is formed as a rectangular protrusion extending in the vertical direction and slidably locked in the unlocking body mounting groove 47 of the connecting member 4.

  In order to connect the suspension shaft 3 and the connection member 4 of this form, the axial direction of the rear suspension shaft 3 in which the connection member 4 is moved in the radial direction of the suspension shaft 3 as in the runner device according to Patent Documents 1 and 2. (See FIGS. 1 and 2).

  When the connecting member 4 is moved in the radial direction of the suspension shaft 3, as shown in FIGS. 1A, 2 </ b> A, and 3, the communication portion 42 of the connection member 4 is connected to the small diameter portion of the suspension shaft 3. Confront 33. At this time, even if there is a deviation between the communicating portion 42 of the connecting member 4 and the small diameter portion 33 of the suspension shaft 3, if the connecting member 4 is moved, the connecting portion 4 is guided and connected to the expanded portion 43. The small diameter portion 33 of the suspension shaft 3 is introduced into the communication portion 42 of the member 4. The movement of the connecting member 4 is continued until the small-diameter portion 33 of the suspension shaft 3 reaches the fitting portion 41 of the connecting member 4 as shown in FIGS. 1 (B), 2 (B), and 3.

  When the connecting member 4 is moved in the axial direction of the suspension shaft 3, the connecting member 4 is pushed up as shown in FIGS. 1 (C) and 2 (C). At this time, as shown in FIG. 4, the flange portion 34 of the suspension shaft 3 is gradually expanded against the elasticity so as not to damage the locking piece 45 of the connecting member 4 along the taper portion 35. As shown in FIG. 5, the locking piece 45 of the connecting member 4 is locked to the flange portion 34 of the suspension shaft 3. As a result, the suspension shaft 3 is prevented from detaching in the axial direction. In addition, since the two pieces of the locking pieces 45 of the connecting member 4 are arranged at an angle of 180 degrees with respect to the axis of the flange portion 34 of the suspension shaft 3, the suspension shaft 3 is firmly detached in the axial direction. To be blocked. At this time, the large-diameter portion 31 of the suspension shaft 3 is fitted into the fitting portion 7 of the connecting member 4, and the projection 36 of the suspension shaft 3 is fitted into the receiving seat 46 of the connecting member 4. Due to the mechanical connection, the suspension shaft 3 is firmly prevented from coming off in the radial direction. Accordingly, the locking force for locking the suspension shaft 3 and the connecting member 4 is increased. When the projection 36 of the suspension shaft 3 and the seat 46 of the connecting member 4 are fitted, the cone 36b of the projection 36 of the suspension shaft 3 is displaced from the axial center of the suspension shaft 3 and the seat 46 of the connection member 4. The guide is corrected to ensure smooth and reliable fitting.

  In order to release the connection of the suspension shaft 3 and the connection member 4 of this embodiment, the connection member 4 is moved in the radial direction of the suspension shaft 3 after being moved in the axial direction of the suspension shaft 3, contrary to the connection. It will be.

  When moving the connecting member 4 in the axial direction of the suspension shaft 3, as shown in FIG. 6, the lock release body 5 is pushed upward, the locking piece 45 of the connecting member 4 is expanded, and the shaft 3 can be unlocked from the flange portion 34 and the locking piece 45 of the connecting member 4. At this time, the locking piece 45 of the connecting member 4 and the contact surface 51 of the unlocking body 5 are formed in a long shape and come into contact with each other over a wide area. Opening can be performed smoothly and reliably.

  As described above, when the diameter of the flange portion 34 of the suspension shaft 3 is made larger than the diameter of the connecting member 4 in addition to the illustrated form, the suspension shaft 3 is in the state of FIGS. 1 (B), 2 (B), and 3. Temporary fixing for locking the flange portion 34 to the upper portion of the window portion 44 of the connecting member 4 can be realized.

  Furthermore, when the diameter of the flange portion 34 of the suspension shaft 3 is smaller than or equal to the diameter of the connection member 4, the connection member 4 is moved in the axial direction of the suspension shaft 3 when there is no allowance for the height of the doorboard suspension. It can also be attached and detached by simply moving it.

BRIEF DESCRIPTION OF THE DRAWINGS It is a longitudinal cross-sectional view of the best form for implementing the runner apparatus based on this invention, and the connection process is shown in order of (A)-(C). FIG. 2 is a perspective view of a main part of FIG. 1, in which (A) corresponds to FIG. 1 (A), (B) corresponds to FIG. 1 (B), and (C) corresponds to FIG. 1 (C). Yes. It is a front view of Drawing 1 (A) and (B). It is a front view in the middle from Drawing 1 (A) and (B) to Drawing 1 (C). It is the front view which cut | disconnected a part of FIG. 1 (C). FIG. 6 is an operation state diagram of unlocking in FIG. 5. FIG. 3 is an extraction diagram in which a main part of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Running wheel 2 Runner main body 3 Suspension shaft 31 Large diameter part 33 Small diameter part 34 Flange part 36 Projection 4 Connecting member 41 Fitting part 42 Communication part 45 Locking piece 46 Seat 5 Lock release body D Door plate R rail

Claims (5)

  A suspension shaft attached to the runner body that travels on the rail, and a connecting member attached to the door plate. By moving the connecting member in the radial direction and the axial direction of the suspension shaft, In the runner device to be attached and detached, the suspension shaft is provided with a large diameter portion having a relatively large diameter and a small diameter portion having a relatively small diameter, and the connecting member is moved in the axial direction of the suspension shaft so that the large diameter portion of the suspension shaft is provided. A runner device comprising: a fitting portion that is fitted and detached to and a communication portion that allows passage of a small-diameter portion of the suspension shaft by movement in the radial direction of the suspension shaft.   2. The runner device according to claim 1, wherein the suspension shaft is provided with a large diameter portion at an upper portion, a small diameter portion is provided at a lower portion, and a flange portion having a diameter larger than the diameter of the small diameter portion is provided near a lower end portion of the small diameter portion. Is provided with a locking piece which has elasticity and is opposed to the axis of the suspension shaft and is formed narrowly downward and locked to the flange portion of the suspension shaft. Runner device characterized by.   The runner device according to claim 1 or 2, wherein the suspension shaft is provided with a protrusion at a lower end portion thereof, and the connecting member is provided with a seat for fitting to the protrusion of the suspension shaft.   4. The runner apparatus according to claim 2, wherein a mountain-shaped unlocking body facing the slidable member in the vertical direction is attached to the connecting member below the locking piece.   5. The runner device according to claim 4, wherein the locking piece of the connecting member is formed in an elongated shape extending from the locking portion with the flange portion of the suspension shaft in the radial direction of the suspension shaft, and the unlocking body is the locking member of the connection member. A runner device characterized in that a mountain-shaped abutting surface that abuts on a piece is formed in a long shape corresponding to a locking piece of a connecting member.

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