JP3005338U - Door car - Google Patents

Abstract

(57) [Summary] [Structure] The auxiliary frame body 20 serving as an inner frame that holds the wheel 10 exposed downward is a substantially rectangular tubular holding frame 30 serving as an outer frame.
The wheel position is housed inside so that the wheel position can be adjusted up and down, and the holding frame 30
A synthetic resin L-shaped holder 40 joined to the upper part and one side of the holding frame is attached to the upper part of the holding frame 30, and a portion 40a of the L-shaped holder 40 located on the upper side of the holding frame expands more than the thickness of the holding frame 30. Has been formed. [Effect] The door roller 1 can be stably stored in the lower frame of the sliding door. When the door roller 1 is stored, the bulging portion of the L-shaped holder 40 is supported by the storage hole formed in the sliding door, and the door roller 1 can be reliably prevented from coming out of the storage portion. it can. The L-shaped holder 40 can be colored easily, has a good appearance when mounted on a sliding door or the like, is lightweight, and can be easily molded.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door roller mounted on a lower frame of a sliding door or the like.

[0002]

[Problems to be solved by conventional techniques and devices]

 A conventional door roller is manufactured by molding a metal material. For example, as shown in FIG. 4, a holding body 93 that axially supports a wheel 92 is housed in an outer frame body 91 so as to be vertically movable. It is a thing. The holding body 93 is mounted on the outer frame body 91 by being screwed into the adjusting screw 94 arranged in the vertical direction. By rotating the adjusting screw 94, the holding frame 93 can be moved in the axial direction of the screw 94, that is, in the vertical direction, and the downward protruding length of the wheel 92 can be adjusted ( See Japanese Utility Model Laid-Open No. 4-37783).

When the door roller 90 is attached to the lower frame, a storage hole slightly larger than the outer shape of the outer frame body 91 is formed at a predetermined position of the lower frame, and after the outer frame body 91 is housed in this hole, The fixing holes 95 formed in the projecting portions on both sides of the outer frame 91 are used to fix the outer frame body 91 with a fixing screw such as a wood screw. However, since the storage hole formed in the lower frame is slightly larger than the outer shape of the outer frame body 91, the fixing state of the door roller 90 becomes unstable when the fixing screw becomes loose due to the load of the sliding door and the secular change. As a result, the sliding door rattles and abnormal noise is generated when opening and closing.

Further, since the door roller 90 is manufactured by molding a metal material for each part, its surface has a metal color and its matching with the color of wood such as a sliding door is not good. Therefore, an object of the present invention is to solve the above-mentioned technical problems and to provide a door roller that can be reliably mounted on a sliding door and can also perform color matching.

[0005]

[Means for Solving the Problems]

 In the door roller for achieving the above object, the auxiliary frame body, which is an inner frame that holds the wheels exposed downward, has a wheel position that is vertically adjustable in a substantially rectangular tubular holding frame that is an outer frame. The L-shaped holder made of synthetic resin, which is housed and joined to the upper part and one side of the holding frame, is mounted. The part of the L-shaped holder located on the upper side of the holding frame is smaller than the thickness of the holding frame. It is characterized in that it is largely bulged.

Further, in the door roller according to a second aspect of the present invention, a fitting piece portion formed by arranging two plate-shaped bodies in parallel with each other is provided in the upper portion of the holding frame in a C shape or a reverse C shape in a side view. The L-shaped holder corresponding to this is provided with a fitting groove having a cross-section of a V shape or an inverted C shape for fitting with the fitting piece portion. The holding frame and the L-shaped holder are joined by the fitting.

[0007]

[Action]

 According to the above structure, the holding frame is formed in a substantially rectangular tube shape, and the L-shaped holder made of synthetic resin, which is bulged to be larger than the thickness of the holding frame, is attached to the holding frame and is placed on the upper side of the holding frame. Since the L-shaped holder is formed to bulge out larger than the thickness of the holding frame, the storage hole formed in the lower frame of the sliding door is formed in accordance with the cross-sectional shape of the holding frame and the L-shaped holder in the thickness direction. With the door roller housed in the hole, the load applied to the door roller can be received by the L-shaped holder via the holding frame, and the door roller can be fixed stably. Further, since the bulged L-shaped holder is supported in the storage hole in a locked state, it is possible to reliably prevent the door roller from coming out downward.

Further, since the L-shaped holder is made of synthetic resin, coloring can be easily performed, and in particular, the color of the L-shaped holder exposed from the storage hole can be matched with the color of the sliding door or the like. Is easy. Further, according to the door roller of the second aspect, since the fitting frame and the fitting groove are fitted to each other to integrally configure the holding frame and the L-shaped holder, the L-shaped holder can be fitted to the fitting piece part. By sliding in the longitudinal direction, attachment to the holding frame can be easily performed.

[0009]

【Example】

 Embodiments will be described in detail below with reference to the accompanying drawings. FIG. 1 is a perspective view illustrating a door roller according to an embodiment of the present invention and a usage state thereof. FIG. 2 is an exploded perspective view of the holding frame and the auxiliary frame body. FIG. 3 is an exploded perspective view of the L-shaped holder.

In the door roller 1, an auxiliary frame body 20 serving as an inner frame for exposing and holding the wheels 10 downward is housed in a rectangular tubular holding frame 30 serving as an outer frame, and the holding frame 30 has an upper portion thereof. The L-shaped holder 40 made of synthetic resin joined to the one side portion 30a and the one side portion 30a is integrally attached, and further screwed to the auxiliary frame 20 to adjust the downward exposure length of the wheel 10. The door roller height adjusting unit 50 is provided, and each of these units will be described in order.

As shown in FIG. 2, the holding frame 30 is formed by bending a plate material into a U-shaped plate in a plan view, and further by bending and joining the U-shaped tip portions so as to overlap each other, a substantially square shape. It is cylindrical and has a space inside, and the upper and lower portions of the holding frame 30 are substantially open. The open portion at the bottom of the holding frame 30 is provided to expose a part of the wheel 10 downward. On the upper part of the holding frame 30, a pair of fitting pieces are formed by bending the front end side in a V-shape toward each other at the upper ends of the plate-like members on the front side and the back side (in FIG. 2). The part 33 is formed. These fitting pieces 33 have a V-shape when viewed from the side.

The auxiliary frame body 20 housed inside the holding frame 30 is formed by bending a plate body to have a U-shape in plan view, and one side surface is open. Mounting holes 21 are formed in the opposing walls of the holding frame 30, and the axle 11 is inserted into the mounting holes 21. The wheel 10 is rotatably supported by the axle 11 with a part thereof exposed downward. The auxiliary frame 20 is housed in the holding frame 20 by a connecting shaft 23 that is inserted through a connecting mounting hole 22 near the lower corner and a mounting hole 31 formed near the lower corner of the holding frame 30. Therefore, the auxiliary frame 20 is rotatable around the connecting shaft 23. Therefore, the exposed length of the wheel 10 from the holding frame 30 is determined by the position of the auxiliary frame body 20 with respect to the holding frame 30.

Further, the auxiliary frame body 20 and the holding frame 30 are provided with elongated holes 24 and 32 formed in a direction crossing each other at a position above the connecting shaft 23, respectively. The long hole 32 is formed in substantially the same direction as the axis of the height adjusting screw 51 of the wheel 10. However, since the auxiliary frame body 20 rotates around the connecting shaft 23, the auxiliary frame body 20 is formed in a slightly arcuate shape.

On the other hand, the long hole 24 is formed in a direction orthogonal to the axial direction of the height adjusting screw 51 of the wheel 10. Therefore, the fixing position of the auxiliary frame body 20 is determined by the pin 25 penetrating the intersection of these elongated holes 32, 24. Next, in this embodiment, the L-shaped holder 40 is made of synthetic resin and is integrally formed. The L-shaped holder 40 matches the color of the wooden sliding door to have a slightly light brown color. The shape is formed into a substantially L shape by joining the upper portion of the holding frame 30 and the one side portion 30a. The upper portion 40a side has a substantially columnar shape and is bulged so that its thickness (diameter direction) is larger than the thickness of the holding frame 30. The side portion 40b has a substantially prismatic shape, and its thickness is formed to be substantially the same as that of the holding frame 30.

The holding frame 30 side of the upper portion 40a is formed as a slightly flat surface, and two fitting grooves 41 are formed parallel to the longitudinal direction in the surface. The fitting groove 41 is provided so as to be tilted in the same manner as the tilting direction of the fitting piece portion 33, and the back side of the groove is close to the tilted shape, and has a V-shaped cross section. Therefore, the L-shaped holder 40 is attached to the holding frame 30 and is integrated with the holding frame 30 by sliding the end of the fitting groove 41 into the fitting piece 33 and sliding it in the longitudinal direction. You can The L-shaped holder 40 can be disassembled from the holding frame 30 by sliding the L-shaped holder 40 in the opposite direction to the mounting direction.

A small U-shaped projection 42 is formed inside the lower end of the side portion 40b. The protrusion 42 is engaged with the notch 34 formed at the lower corner of the holding frame 30 when the L-shaped holder 40 is attached to the holding frame 30, whereby the L-shaped holder 40 is removed. It is locked to prevent it. A U-shaped fixing member 61 for fixing the height adjusting screw 51 is inserted inward of the notch 34 of the holding frame 30, and the protrusion 42 is formed in the U-shaped fixing member 61. The U-shaped fixing member 61 is also prevented from being pulled out by contacting the head.

Next, the height adjusting unit 50 will be described. The height adjusting portion 50 is provided with an adjusting screw 51 that is screwed with the positioning pin 25 of the auxiliary frame body 20 through a through hole 35 provided in the side wall 30a of the holding frame 30 (FIG. 3). Arrow A). An annular recess 51b is formed in the lower neck portion of the adjusting screw 51 and is fitted into the recess 61a of the U-shaped fixing member 61 so that the adjusting screw 51 does not move in the axial direction. . Therefore, when the adjusting screw 51 is rotated, the pin 25 moves in the axial direction of the adjusting screw 51 to rotate the auxiliary frame body 20. Thereby, the protruding length of the wheel 10 exposed below the holding frame 30 can be changed.

The U-shaped fixing member 61 is fixed by being sandwiched between the U-shaped fixing member 61 and the inner wall of the side portion by the protrusion 36 protruding inside the holding frame 30. The rotation of the adjusting screw 51 is prevented by the rotation restricting member 52 fitted to the head of the screw 51. The rotation restricting member 52 has a fitting hole 54 that is loosely fitted in the head of the adjusting screw 51, and a tooth groove 55 having a large number of irregularities is formed on the opposite side of the hole 54. The tooth groove 55 is configured to mesh with the tooth groove 44 formed of a large number of irregularities provided inside the side portion 40b of the L-shaped holder 40. The rotation restricting member 52 is elastically urged toward the L-shaped holder 40 side by the coil spring 53 provided between the rotation restricting member 52 and the side wall 30a. Therefore, the tooth groove 55 1 of the adjusting screw 51 is pressed by the tooth groove 44 of the L-shaped holder 40, and the both are meshed with each other to restrict the rotation of the rotation restricting member 52 1.

When releasing the restriction of the rotation restricting member 52, if the rotation restricting member 52 is pushed into the holding frame 30 side from the through hole 43 of the L-shaped holder 40 using a screwdriver or the like, the engagement of the tooth groove is disengaged. The rotation restricting member 52 can be rotated by rotating the adjusting screw 51 via the rotation restricting member 52 in this state, whereby the height of the wheel 10 can be adjusted.

When this door roller 1 is used, as shown in FIG. 1, a storage portion C is provided in a lower corner of a lower frame B such as a sliding door. The size of the storage portion C forms a space having a size corresponding to the outer shape of the holding frame 30 and the outer shape of the L-shaped holder 40. In this case, the portion corresponding to the holding frame 30 can be formed by cutting in a straight line, and the portion corresponding to the L-shaped holder 40 can be easily formed by forming using a drill. Then, the door roller 1 is mounted by pushing the side frame 40b of the L-shaped holder 40 backward from the side of the lower frame B. After that, a fixing screw 62 for preventing slipping out in the insertion direction is attached through a hole 45 provided in the L-shaped holder 40. A cap 63 for blindfolding is attached to the hole 45.

In the door roller 1 thus mounted, the load applied to the door roller 1 can be received by the entire L-shaped holder 40 via the holding frame 30, and the stability is improved. In addition, since the bulging portion of the L-shaped holder 40 is locked and supported in the storage portion C, the door roller 1 is reliably prevented from slipping out below the sliding door. When the height of the wheel 10 is adjusted, the head of the adjusting screw 51 is on the side of the door roller 1, that is, on the side of the sliding door, so that the height of the wheel 10 can be adjusted without removing the sliding door. At the time of this adjustment, if a screwdriver is used to push the rotation restricting member 52 against the elastic force of the coil spring 53 through the through hole 43 of the L-shaped holder 40, the tooth grooves 55 and 44 are disengaged from each other. Since the rotation is allowed, the adjusting screw 51 can be turned via the rotation restricting member 52.

For example, when the adjusting screw 51 is rotated clockwise, the pin 20 which positions the auxiliary frame 20 is pulled, and the auxiliary frame 20 moves to the left (in FIG. 1) about the shaft 23. Since the wheel 10 rotates a little, the exposed length of the wheel 10 becomes slightly longer. As a result, the height of the sliding door can be slightly increased. On the contrary, when the adjusting screw 51 is rotated clockwise, the auxiliary frame 20 is rotated slightly rightward about the shaft 23, and the exposed length of the wheel 10 is slightly reduced. As a result, the height of the sliding door can be slightly lowered.

Further, it is a part of the L-shaped holder 40 that is exposed to the side of the lower frame B in the state where the L-shaped holder 40 is stored in the storage portion C. Since it is colored in a similar color, it matches the color of the sliding door and looks very good. Since this L-shaped holder 40 is made of synthetic resin, it is lightweight, easy to mold, and contributes to cost reduction.

In the above-described embodiment, the fitting piece portion 33 is formed in an inverted V shape in which the tip end side is close, but may be formed in an inverted V shape in which the tip end side is widened. In this case, the fitting groove 41 is formed with an inclination that the back side is separated. The purpose of providing such an inclination is to lock the fitting piece portion 33 in the fitting groove 41 and prevent the fitting piece portion 33 from coming off.

[0025]

[Effect of device]

 As described above, according to the door roller of the present invention, the holding frame is formed in the shape of a rectangular tube, and the L-shaped holder made of synthetic resin attached to the holding frame is formed so as to bulge larger than the thickness of the holding frame. Therefore, the door carriage can be stably stored in the lower frame of the sliding door, and the bulging part of the L-shaped holder is supported in the hole for storing the sliding door when the door roller is stored. It is possible to reliably prevent the door roller from coming off.

Further, since the holding frame and the L-shaped holder are integrally configured by fitting the fitting groove and the fitting piece portion, the L-shaped holder can be easily assembled and removed. Since the above L-shaped holder is made of synthetic resin, it can be colored easily to match sliding doors, etc., and it can be very well formed after mounting, and it is lightweight and easy to mold, contributing to cost reduction. To do.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating a door roller according to an embodiment of the present invention and a usage state.

FIG. 2 is an exploded perspective view of a holding frame and an auxiliary frame body.

FIG. 3 is an exploded perspective view of an L-shaped holder.

FIG. 4 is a perspective view of a conventional door roller.

[Explanation of symbols]

 1 Door roller 10 Wheel 20 Auxiliary frame body 30 Holding frame 33 Fitting piece portion 40 L-shaped holder 41 Fitting groove 50 Door wheel height adjusting portion 51 Adjustment screw

Claims (3)

[Scope of utility model registration request] 1. An auxiliary frame body, which is an inner frame in which wheels are exposed and held downward, is housed in a substantially rectangular tubular holding frame which is an outer frame so that the wheel position can be adjusted up and down. Is fitted with an L-shaped holder made of synthetic resin joined to its upper part and one side, and the part of the L-shaped holder located on the upper side of the holding frame is formed to bulge out larger than the thickness of the holding frame. A door car characterized by that. 2. A fitting piece portion, which is formed by arranging two plate-shaped members in parallel with each other, is provided in an upper portion of the holding frame in a V-shape or an inverted C-shape in a side view. The holder is formed with a fitting groove having a C-shaped cross section or an inverted C-shape for fitting with the fitting piece, and the holding frame and the L-shaped holder are fitted by fitting the fitting piece and the fitting groove. The door roller according to claim 1, wherein and are joined. 3. A head portion of a vertical adjusting screw for a wheel position screwed to an auxiliary frame body is located on one side of the holding frame and inside the L-shaped holder, and is attached to the screw head portion. The door roller according to claim 1 or 2, wherein the provided uneven portion and the uneven portion provided on the L-shaped holder mesh with each other to restrict rotation of the screw.