JP2004156216A - Runner device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a runner device for preventing an accident such as the drop of a door panel. <P>SOLUTION: The runner device 1 is composed of a traveling part 2 traveling in a rail R, a support shaft 3 having an upper end supported by this traveling part 2, a housing 4 supported by a lower part of the support shaft 3, and an installing member 5 for detachably installing the housing 4. The installing member 5 is fixed to the innermost side surface and the under surface of a housing recess P3 formed in a crossing part of the upper surface P1 and the left side surface P2 of the door panel P. A locking mechanism 6 is arranged between an inside lower part of the housing 4 and the tip of a horizontal part 52 of the installing member 5 for preventing the housing 4 from separately moving from a vertical part 51 along the horizontal part 52 of the installing member 5. A shielding wall part 41 is arranged at the left side of the housing 4 for shielding a locking piece 61 of the locking mechanism 6 to a left side outer part. An operation window hole 41b is formed in a place opposed to the locking piece 61 of the shielding wall part 41. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a runner device that connects a door plate to a rail provided above an opening of a frame so as to be movable along the rail.
[0002]
[Prior art]
In general, a runner device includes a traveling portion, a support shaft having an upper end supported by the traveling portion, a housing supported by a lower end of the support shaft, an attachment member to which the housing is detachably attached, A locking mechanism provided between the mounting member and the housing. The running section is provided movably on a rail horizontally provided along the upper part of the opening of the frame. On the other hand, the attachment member is attached to the upper end of the door plate that opens and closes the opening of the skeleton. Then, when the housing is moved closer to the mounting member in the horizontal direction to a predetermined mounting position, the housing is connected to the mounting member so as to be immovable in the vertical direction, and is moved in a direction away from the mounting member by the locking mechanism. Linked to impossible. As a result, the housing is fixed to the mounting member, and thus the door plate is movably supported on the rail via the runner device.
[0003]
The locking mechanism includes an engaging recess (engaging portion) provided on the mounting member, an engaging member rotatably provided on the housing, and biasing the engaging member to approach the engaging recess. And a biasing means for maintaining the engagement with the engagement recess. When the housing is moved to the mounting position, the engagement member is rotated closer by the urging means to engage the engagement recess. On the other hand, when the engagement member is rotated away from the urging force of the urging means, the engagement member is detached from the engagement concave portion, and the housing can be moved away from the mounting member. By moving the housing away from the mounting member, the housing can be removed from the mounting member. (For example, refer to Patent Document 1).
[0004]
[Patent Document 1]
JP 2000-204833 A
[Problems to be solved by the invention]
In the above-described conventional runner device, a portion of the housing facing the engaging member is open. This is because when the housing is removed from the mounting member, the engagement between the engagement member and the engagement recess can be released by operating the engagement member. However, when the side of the housing facing the engagement member is opened, the engagement member may be moved due to an accident and the engagement between the engagement member and the engagement recess may be released.
[0006]
[Means for Solving the Problems]
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and includes a traveling portion, a support shaft having an upper end supported by the traveling portion, a housing supported by a lower end of the support shaft, and The mounting member is attached to the housing so as to be immovable downward when it is moved relatively close to the mounting position in the horizontal direction, and the mounting member is detachably provided between the mounting member and the housing. A locking mechanism for preventing relative movement of the mounting member relative to the housing at times, and for permitting relative separation movement of the mounting member relative to the housing at the time of disengagement, the locking mechanism includes: An engaging portion fixedly provided on one of the housing and the mounting member; and an engaging portion provided on the other side so as to be displaceable in a direction approaching or separating from the engaging portion, to be displaced close to each other. Accordingly, an engaging member that engages with the engaging portion and is disengaged from the engaging portion by being displaced and displaced, and urges the engaging member toward the engaging portion, and the engaging member A biasing means for maintaining the engagement state with the engagement portion, wherein a shielding wall portion for shielding the locking mechanism is provided on a side portion of the housing on the front side in the separation movement direction with respect to the mounting member. An engaging state of the engaging member with respect to the engaging portion, wherein the engaging member penetrates the shielding wall portion and is displaced away from the engaging member against the urging force of the urging means. An operation window hole for inserting an operation tool for releasing the operation from the outside into the housing is formed.
In this case, the traveling portion is provided on a rail horizontally provided along the upper part of the opening of the skeleton so as to be movable in the longitudinal direction, and the mounting member is provided at the back of a housing recess provided at an upper end corner of the door plate. Side, the housing is horizontally insertable into the housing recess from one side open portion, and when inserted to the mounting position, is connected to the mounting member immovably in the vertical direction, and the shielding wall It is desirable that the portion shields one side open portion of the accommodation recess.
Further, it is desirable that the urging means is constituted by an elastically deformable leaf spring unit provided integrally with the engaging member.
Further, it is desirable that the engaging member is formed with an operation concave portion for engaging a distal end portion of the operation tool inserted into the housing from outside through the operation window hole.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.
1 and 2 show a main part of a sliding door in which the runner device 1 according to the present invention is used, and the sliding door includes a rail R and a door plate P. The rail R has a main body portion R1 having a U-shaped cross section, and is provided horizontally along an upper portion of an opening of a skeleton (not shown) with its open portion facing downward. I have. A pair of track plate portions R2 and R2 protruding inward in the horizontal direction are formed on both side surfaces of the lower end opening portion of the main body portion R1 over the entire length of the main body portion R1. The door plate P is for opening and closing the opening of the frame, and is supported on the rail R via the runner device 1 so as to be movable in the longitudinal direction of the rail R (the left-right direction in FIG. 1; hereinafter, referred to as the left-right direction). Have been.
[0008]
The runner devices 1 are provided at respective intersections of the upper surface P1 of the door plate P, the left side surface P2, and the right side surface (not shown). , It is symmetrical. Therefore, here, only the runner device 1 provided at the upper left of the door plate P shown in FIG. 1 and the supporting structure of the door plate P by the runner device 1 will be described.
[0009]
As shown in FIGS. 1 and 2, the runner device 1 includes a traveling unit 2, a support shaft 3, a housing 4, and a mounting member 5.
The traveling section 2 has a pedestal section 21 having a rectangular parallelepiped shape. The base portion 21 is disposed so as to be movable in the left-right direction substantially at the center in the width direction of the rail R (the left-right direction in FIG. 2; hereinafter, referred to as the front-rear direction). I'm stuck. Wheels 22, 22 are rotatably provided at one end and the other end of the base 21 in the left-right direction via an axle 23. When the wheels 22 roll on the track plate portion R2 of the rail R, the traveling portion 2 can move in the longitudinal direction of the rail R.
[0010]
The upper end of the support shaft 3 is supported by the center of the base 21 with its axis oriented vertically. That is, a large-diameter hole 21a extending downward from the upper surface and a small-diameter hole 21b extending from the bottom surface of the large-diameter hole 21a to the lower surface of the base 21 are provided at the center of the base 21 in the left-right direction. They are formed with their axes aligned. On the other hand, the support shaft 3 is composed of a head portion 31 having an outer diameter substantially equal to the inner diameter of the large diameter hole portion 21a, and a shaft portion 32 having an outer diameter approximately equal to the inner diameter of the small diameter hole portion 21b. . The head 31 is inserted into the large-diameter hole 21a until it abuts against the bottom surface. In addition, the head 31 is prevented from falling upward by the stopper pin 24 provided on the base 21. Thus, the position of the support shaft 3 is fixed to the base 21. The shaft portion 32 penetrates the small-diameter hole portion 21b and extends downward of the rail R.
[0011]
The housing 4 is detachably attached to the door plate P via an attachment member 5. Thus, the mounting member 5 and its fixing structure to the door plate P will be described first. An accommodation recess P3 is formed at the upper left corner of the door plate P, that is, at the intersection of the upper surface P1 and the left side surface P2. The accommodation recess P3 has a substantially rectangular cross section as shown in FIG. The width of the housing recess P3 in the front-back direction is smaller than the width of the door plate P, and the housing recess P3 is disposed at the center of the door plate P in the front-back direction. Therefore, both sides in the front-rear direction of the housing recess P3 are closed by the substantial portions of the door plate P located on both sides thereof. On the other hand, the upper and left sides of the accommodation recess P3 are open to the outside from the upper surface P1 and the left side surface P2 of the door plate P, respectively.
[0012]
The mounting member 5 is formed in a substantially “L” shape by a vertical portion 51 extending vertically and a horizontal portion 52 horizontally extending leftward from a lower end of the vertical portion 51. The mounting member 5 is fixed by screws B in a state where the back surface of the vertical portion 51 and the lower surface of the horizontal portion 52 are in contact with the vertically extending rear side surface and the horizontally extending lower surface of the accommodation recess P3, respectively. . A stopper piece 53 is formed at the upper end of the surface facing the left of the vertical portion 51. On the other hand, a guide groove 54 extending from the tip of the horizontal portion to the vertical portion 51 is formed in the horizontal portion 52. Supporting ridges 55 extending horizontally along the guide grooves 54 are formed at upper end portions of both side surfaces of the guide grooves 51, respectively.
[0013]
As shown in FIGS. 1 to 5, the housing 4 has a hollow box shape, and has an outer shape substantially similar to a space defined by the housing recess P <b> 3 and the mounting member 5. Therefore, the housing 4 can be inserted into the accommodation recess P3 from either the left open portion or the upper open portion, but in this embodiment, the housing 4 is horizontally inserted into the accommodation recess P3 from the left open portion. It is designed to be inserted.
[0014]
The housing 4 is configured by fixing two halves 4A and 4B, which are arranged to face each other, to fixing means such as an adhesive. The two halves 4A and 4B have a shape in which the housing 4 is bisected at the center in the front-rear direction, except for the left side. A shielding wall portion 41 protruding toward the half body 4B is formed on the left side of the half body 4A. The outer surface of the shielding wall 41 facing left forms the entire left side surface 4a of the housing 4. When the shielding wall 41 is viewed from the left to the right, the shape of the shielding wall 41 is the shape of the accommodation recess. It has the same shape as P3 and housing 4. Moreover, the outer surface of the shielding wall portion 41 facing left, that is, the left side surface 4A of the housing 4, is attached to the mounting member 5 by inserting the housing 4 to the predetermined mounting position of the accommodation recess P3, and the left side surface of the door plate P3. It is located on the same plane as P1. Therefore, when the housing 4 is attached to the attachment member 5, the shielding wall portion 41 shields the left end opening portion of the accommodation recess P3. As a result, the inside of the housing recess P3 and the interior of the housing 4 are shielded by the shielding wall 41. On the other hand, on the upper part of the left end of the half body 4B, two vertically adjacent locking plate portions 42 are formed. As shown in FIGS. 1, 4 and 5, the two locking plate portions 42 are formed on the shielding wall portion 41 from the distal end surface (the end surface on the half body 4B side) to the proximal end side. Is inserted into the receiving groove 41a through the opening at the end.
[0015]
As shown in FIGS. 8 and 9, a narrow portion 43 is formed in a lower right portion of the housing 4. The narrow portion 43 is inserted into the guide groove 54. Support grooves 44 are formed in the upper portions of both side surfaces of the narrow portion 43 so as to extend horizontally from the right end surface of the housing 4 to the left. A support ridge 55 is inserted into the support groove 44. As a result, the housing 4 is connected to the mounting member 5 so as not to be able to move in the vertical direction, and is thus connected to the door plate P so as not to be movable in the vertical direction. In this state, the upper surface 4b of the housing 4 is located on the same plane as the upper surface P1 of the door plate P. As shown in FIGS. 1, 3, 8 and 9, an engagement recess 45 is formed at the intersection of the upper surface 4 b and the right side surface 4 c of the housing 4. The stopper piece 53 of the mounting member 5 is inserted into the engagement recess 45, and the distal end face of the stopper piece 53 abuts the left end face of the engagement recess 45. Thus, the positioning of the housing 4 in the left-right direction with respect to the housing recess P3 is performed, and the position of the housing 4 at this time is the mounting position. When the housing 4 is located at the mounting position, the left side surface 4a of the housing 4 is located on the same plane as the left side surface P2 of the door plate P as described above.
[0016]
A locking mechanism 6 is provided between the housing 4 and the mounting member 5 to lock the housing 4 so as to be able to be inserted into and removed from the accommodation recess P3. The locking mechanism 6 has an engaging member 61 provided at the lower left end inside the housing 4 and an engaging portion 62 provided on the upper surface of the distal end of the horizontal portion 52 of the mounting member 5.
[0017]
The engagement member 61 has a main body 61a extending in the left-right direction as shown in FIGS. A shaft 61b extending horizontally in the front-rear direction is provided at the lower left end of the main body 61a. Since both ends of the shaft portion 61b are rotatably supported by the halves 4 and 4B, the main body portion 61a is rotatable up and down around its left end. At the upper left end of the main body 61a, a leaf spring 61c extending obliquely upward to the right is provided. The leaf spring portion 61c has its distal end portion abutted against a wall portion provided in the housing 4 in an elastically deformed state, and thus rotationally biases the main body portion 61a such that the right end portion thereof is rotationally displaced downward. are doing. The rotating urging force causes the engaging member 61 to abut against the wall of the housing, and is usually located at the initial position where the main body 61a is substantially horizontal. An engagement protrusion 61d having a triangular cross section is provided on the lower surface of the right end of the main body 61a.
[0018]
The engaging portion 62 extends horizontally in the front-rear direction and has a triangular cross section. The engagement portion 62 has an inclined surface 62a that forms an upward slope from left to right, and a vertical surface 62b that extends downward from the right end (upper end) of the inclined surface 62a. The inclined surface 62a is arranged such that the support protrusion 55 of the mounting member 5 enters the support groove 44 and the housing 4 is horizontally moved to the left so that the engagement protrusion 61d of the engagement member 61 abuts. ing. When the housing 4 is further moved rightward with the engagement projection 61d abutting on the inclined surface 62a, the main body 61a is rotated upward from the initial position against the urging force of the leaf spring 61c. When the housing 4 is moved rightward until the tip of the stopper piece 53 abuts against the left end surface of the engagement recess 45, that is, when the housing 4 is moved to the mounting position with respect to the accommodation recess P3, the engagement projection 61d is engaged. It gets over the inclined surface 62a of the joint 62. Then, the main body 61a is rotated downward to the initial position by the urging force of the leaf spring 61c, and the engagement protrusion 61d is opposed to and contacts the vertical surface 62b of the engagement portion 62 (see FIG. 1). Thus, the housing 4 is connected to the mounting member 5 so as not to move leftward from the mounting position, and is mounted at a predetermined mounting position of the housing recess P3. The engagement protrusion 61d has a symmetric shape in which the engagement portion 62 is turned upside down, and the surface of the engagement protrusion 61b that contacts the vertical surface 62b extends in the vertical direction. Therefore, even if a leftward force acts on the housing 2, the engagement between the engagement protrusion 61 d and the engagement portion 62 is not released.
[0019]
As shown in FIGS. 1, 2, and 7, the shielding wall portion 41 has an operation window hole 41 b penetrating therethrough. The operation window hole 41b is disposed at a position facing the left end surface of the main body 61a of the engagement member 61. On the other hand, as shown in FIGS. 1, 7, and 11, an operation concave portion 61e is formed on the left end surface of the main body 61a facing the operation window hole 41b. The operation concave portion 61e is capable of inserting the distal end portion of an operating tool T such as a driver inserted from the operation window hole 41b. When at least the distal end portion of the operating tool T is moved upward in the inserted state, the engaging member 61 is moved. Rotates upward about the shaft portion 61b, and the engaging projection 61d is separated upward from the vertical surface 62b of the engaging portion 62. As a result, the housing 4 can move to the left with respect to the mounting member 5. Then, by moving the housing 4 to the left, the housing 4 can be removed from the accommodation recess P3.
[0020]
As shown in FIG. 1, between the housing 4 and the support shaft 3, a front / rear position adjusting mechanism 7 for adjusting the position of the door plate P in the front-back direction with respect to the rail R, and the vertical position of the door plate P with respect to the rail R are provided. A vertical position adjusting mechanism 8 for adjusting the position is provided. The two position adjusting mechanisms 7 and 8 have the same configuration as the front and rear and up and down position adjusting mechanisms in a known runner device. Therefore, those configurations will be briefly described.
[0021]
First, the front-rear position adjusting mechanism 7 will be described. As shown in FIGS. 1, 4 and 6, an adjusting screw 71 that penetrates the shielding wall portion 41 in the left-right direction is provided at the upper end portion thereof. Have been. The adjustment screw 71 is prevented from moving in the left-right direction by the locking plate portion 42. A movable member 72 provided in the housing 4 so as to be movable in the left-right direction is screwed to the adjustment screw 71. Therefore, when the adjustment screw 71 is rotated in the forward / reverse direction, the movable member 72 moves in the left / right direction. Further, in the housing 4, a rear end portion of the swing member 73 is provided so as to be rotatable in a horizontal direction about a shaft 74 which faces in the vertical direction. The shaft portion 32 of the support shaft 3 inserted through the front end of the swing member 73 from the upper surface 4b of the housing 4 is inserted in the front end portion so as to be immovable in the front-rear direction and slightly movable in the left-right direction. One side of the swing member 73 is engaged with the movable member 72. Therefore, when the movable member 72 is moved in the left-right direction by the adjusting screw 71, the swinging member 73 is rotated, and the tip portion is displaced in the front-rear direction. As a result, the housing 4 moves in the front-rear direction with respect to the support shaft 3, and the position of the housing 4 in the front-rear direction with respect to the door plate P is adjusted according to the amount of rotation of the adjustment screw 71.
[0022]
Next, the vertical position adjusting mechanism 8 will be described. As shown in FIGS. 1, 5, and 6, an adjusting screw 81 that penetrates the shielding member 41 in the vertical direction at the center in the vertical direction is rotatable. It is provided in. The adjustment screw 81 is prevented from moving in the left-right direction by the locking plate portion 42. A cam member 82 provided in the housing 4 so as to be movable in the left-right direction and immovable in the up-down direction is screwed to the adjusting screw 81. Therefore, when the adjusting screw 81 is rotated in the forward / reverse direction, the cam member 82 moves in the left / right direction. The cam member 82 is provided with cam holes 82a, 82a having a long hole shape inclined with respect to the front-rear direction. Both ends of the shaft 83 are inserted into the cam holes 82a, 82a so as to be movable in the longitudinal direction of the cam hole 82a. The central portion of the shaft 83 penetrates the shaft portion 32 of the support shaft 3 immovably in the vertical direction. As a result, the housing 4 is supported by the support shaft 3 via the shaft 83 and the cam member 82, and the door plate P is supported by the rail R via the runner device 1 so as to be movable in its longitudinal direction. Moreover, when the cam member 82 is moved in the left-right direction by the adjusting screw 81, the cam member 82 moves in the up-down direction with respect to the support shaft 3, and the housing 4 moves in the up-down direction. Thus, the height of the door plate P with respect to the rail R is adjusted according to the amount of rotation of the adjustment screw 81.
[0023]
When the door plate P is movably supported on the rail R using the runner device 1 having the above configuration, the support shaft 3 is attached to the traveling portion 2 and the housing 4 is attached to the support shaft 3. When the housing 4 is mounted on the support shaft 3, the support shaft 3, the front / rear position adjustment mechanism 7, the up / down position adjustment mechanism 8, and the engagement member 61 are installed at predetermined locations on one half 4A. Thereafter, the half plates 4A and 4B are abutted against each other while the locking plate 42 of the other half 4B is inserted into the housing groove 41a of the shielding wall portion 41, and fixed by bonding or the like. Thus, the housing 4 is attached to the support shaft 3. Thereafter, as shown in FIG. 8, the traveling portion 2 is arranged on the rail R, and the mounting member 5 is mounted on the housing recess P3 of the door plate P. Next, the housing 4 is moved in the horizontal direction and inserted into the accommodation recess P3. When the housing 4 is inserted to the predetermined mounting position of the accommodation recess P3, the tip of the stopper piece 53 abuts against the left end surface of the engagement recess 45, and the support protrusion 55 fits into the support groove 44, and further the engagement member The engagement protrusion 61 d of the engagement 61 is engaged with the engagement portion 62. Thereby, the housing 4 is attached to the door plate P via the attachment member 5.
[0024]
When removing the housing 4 from the accommodation recess P3 of the door plate P, the operating tool T is inserted into the housing 4 through the operating window hole 41b of the shielding wall portion 41, and the tip of the operating tool T is connected to the operating recess of the engaging member 61. 61e. Then, the operating member T rotates the engaging member 61 upward against the urging force of the leaf spring portion 61c to release the shape state of the engaging member 61 and the engaging portion 62. In this case, by turning the operating tool T counterclockwise in FIG. 1 with the intermediate portion of the operating tool T abutting against the lower portion of the inner peripheral surface of the operation window hole 41b, the engaging member 61 can be easily moved. Can be rotated. Thereafter, the housing 4 can be removed from the housing recess P3 by moving the housing 4 to the left.
[0025]
In the runner device 1 having the above configuration, the engaging member 61 is shielded from the outside by the shielding wall portion 41 except for the portion facing the operation window hole 41b. In addition, the engagement member 61 is separated from the opening outside the operation window hole 41b by the thickness of the shielding wall 41 inward. Therefore, it is possible to almost certainly prevent a situation in which the engagement member 61 is moved by an accident and the engagement between the engagement member 61 and the engagement portion 62 is released.
[0026]
Note that the present invention is not limited to the above embodiment, and can be appropriately modified.
For example, in the above embodiment, the engaging member 61 is provided on the housing 4 and the engaging portion 62 is provided on the mounting member 5, but the engaging member is provided on the mounting member 5 and the engaging portion is provided on the housing 4. May be provided.
Further, although the leaf spring portion 61c is provided integrally with the engaging member 61, other urging means such as a leaf spring separate from the engaging member 61 may be provided instead of the leaf spring portion 61c. Alternatively, the main body 61a of the engaging member 61 may be elastically deformable, and the elasticity may cause the engaging protrusion 61d of the main body 61a to engage with the engaging portion 62.
[0027]
【The invention's effect】
As described above, according to the present invention, it is possible to almost certainly prevent a situation in which the engagement between the engagement member and the engagement portion is released due to an accident.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view taken along line XX of FIG. 2 showing a main part of an embodiment in which a runner device according to the present invention is applied to a sliding door.
FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a sectional view taken along line BB of FIG. 1;
FIG. 4 is a sectional view taken along line CC of FIG. 1;
FIG. 5 is a sectional view taken along the line DD of FIG. 1;
FIG. 6 is a perspective view showing a front-rear position adjustment mechanism and a vertical position adjustment mechanism used in the runner device.
FIG. 7 is a cross-sectional view of a main part for describing a method of releasing the engagement between the engagement member and the engagement part of the runner device.
FIG. 8 is a cross-sectional view of a main part for describing a method of attaching the housing to the accommodation recess of the door plate via an attachment member.
FIG. 9 is a sectional view taken along line XX of FIG. 8 showing a relationship between a horizontal portion of the mounting member and the housing.
10A and 10B are views showing an attachment member used in the runner device, wherein FIG. 10A is a front view, FIG. 10B is a front sectional view thereof, and FIG. 10 (D) is a right side view thereof, and FIG. 10 (E) is a plan view thereof.
11A and 11B are diagrams showing an engagement member used in the runner device, wherein FIG. 11A is a front view, FIG. 11B is a left side view thereof, and FIG. A plan view and FIG. 11D is a front sectional view thereof.
[Explanation of symbols]
P Door plate P3 Housing recess R Rail T Operating tool 1 Runner device 2 Running unit 3 Support shaft 4 Housing 5 Mounting member 6 Locking mechanism 41 Shielding wall 41b Operation window hole 61 Engaging member 61c Leaf spring 61e Operation recess 62 Engage Department

Claims (4)

A traveling portion, a support shaft having an upper end portion supported by the traveling portion, a housing supported by a lower end portion of the support shaft, and a housing which is relatively approached to the mounting position in a horizontal direction with respect to the housing. A mounting member that is immovably attached to the housing in a downward direction, and is detachably provided between the mounting member and the housing, and prevents relative movement of the mounting member relative to the housing when engaged, A locking mechanism that allows relative movement of the mounting member relative to the housing during disengagement, wherein the locking mechanism is provided at a position fixed to one of the housing and the mounting member. The other is provided so as to be displaceable in a direction approaching and separating from the engaging portion, and the other is engaged with the engaging portion by approaching and displacing, and the upper portion by displacing and displacing. An engaging member for disengaging from the engaging portion; and an urging means for urging the engaging member toward the engaging portion and maintaining the engaging member in an engaged state with the engaging portion. And a runner device having
A shielding wall for shielding the locking mechanism is provided on a side of the housing on the front side in the separating movement direction with respect to the mounting member, and the shielding wall penetrates the shielding wall, and the engaging member is provided with Forming an operation window for externally inserting the operating tool for disengaging and disengaging the engaging member from the engaging portion against the urging force of the urging means so as to release the engaged state from the engaging portion; A runner device. The running part is provided on a rail horizontally provided along the upper part of the opening of the skeleton so as to be movable in the longitudinal direction, and the mounting member is mounted on the back side of a housing recess provided at an upper end corner of the door plate. The housing is horizontally insertable into the housing recess from one side open portion, and when inserted to the mounting position, is immovably connected to the mounting member in the up-down direction, and the shielding wall portion is The runner device according to claim 1, wherein one side opening portion of the accommodation recess is shielded. The runner device according to claim 1 or 2, wherein the biasing means is constituted by an elastically deformable leaf spring portion provided integrally with the engagement member. The operating member according to claim 1, wherein the engaging member is formed with an operation recess for engaging a distal end portion of an operation tool inserted into the housing from the outside via the operation window hole. The runner device according to any one of the above.

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