JPH0512598U - Caster mounting device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a caster mounting device capable of maintaining a firm mounting state on a door body. [Constitution] The lower frame of the door is held between the receiving tool and the retainer. The receiving part is a hook and an inclined part to the lower frame step part, an internal thread part,
The presser tool has a downward sloping surface on the lower side of the female threaded portion, and the presser has a vertically long threaded hole which forms a gap between the engaging piece to the lower frame step and the female threaded portion. It is provided with a fastening piece and a locking piece that abuts the inclined surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a caster mounting device used for mounting casters on a lower end of a door body such as a gate.

[0002]

[Prior Art]

 Conventionally, for example, in order to attach casters to the lower end of the door body in a gate, a metal fitting that holds the caster rotatably or an appropriate bracket that fixes the metal fitting is screwed directly to the door body. It was

[0003]

[Problems to be solved by the device]

 However, when mounting the conventional caster, for example, when the door body is a casting, it is difficult to ensure sufficient assembly precision between the metal fittings or bracket of the caster and the mounting surface of the door body, and it is difficult to use it. There is a risk that the screws may loosen during the operation, and it has been an issue to solve such problems.

[0004]

[The purpose of the device]

 The present invention was made in view of the above-mentioned conventional problems, and an object thereof is to provide a caster mounting device that can maintain a strong mounting state even with a door body made of cast metal. ..

[0005]

[Means for Solving the Problems]

 The caster mounting device according to the present invention includes a receiving member that faces one of the lower face and the lower face of the lower frame of the door body, and the lower frame together with the receiving device that is screwed to the receiving body. It is equipped with a retainer that is clamped from both sides, and the receiver is a hook portion to a step formed on one of the found faces of the lower frame, an inclined portion below the hook portion, and the lower portion. The presser foot is provided with a female thread portion that opens to the other mounting surface side of the frame and a downwardly inclined surface on the lower side of this female thread portion, and the presser foot is a step portion formed on the other mounting surface of the lower frame. And an engaging piece facing each other with a gap between the female engaging portion and the female threaded portion, and having a vertically long screw through hole, and an inclining portion along the inclined surface and contacting the inclined surface. The above configuration is used as a means for solving the conventional problems.

[0006]

[Function of the device]

 In the caster mounting device according to the present invention, in the receiver and the retainer for holding the lower frame of the door body, a gap is provided between the female screw portion of the retainer and the retainer portion of the retainer, and the retainer portion is provided. By making the screw through hole in the vertical direction long and making the inclined surface of the lower side of the receiving device abut with the locking piece of the holding device, the screw passed through the screw through hole can be screwed into the female thread part. Along with this, the presser foot is pressed down toward the lower frame mounting surface and lowered.

As a result, the hook portion and the inclined portion of the receiving member engage with the step portion of the one face of the lower frame and are forcibly pressed, and the engaging piece of the pressing device is pressed against the other portion of the lower frame. It engages with the stepped portion of the found surface and is forcedly pressed into contact, so that the lower frame is held from both sides of the door body by the receiver and the retainer, and further, the inclined face tries to return the retainer to the upper side. The force prevents the screws from loosening.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

FIG. 3 is a view showing a gate provided with a caster attaching device according to the present invention. This gate has three door bodies C, D and E made of cast metal between a pair of columns A and B. One of these doors C, D, and E (C) is attached to one of the columns A 1 on the right side in the figure via a hinge. Further, the remaining two sheets (D, E) are hinged to each other, and the caster 1 is attached to the end of the lower frame F of the door body E attached to the other pillar B via the hinge.

As shown in FIGS. 1 and 2, the mounting device of the caster 1 includes a receiving member 2 facing one of the found faces (the left face in FIG. 1) and the lower face of the lower frame F, and the receiving device 2. A retainer 3 for holding the lower frame F from both sides of the door body together with the receiver 2 by being screwed to the retainer 2 is provided. In this embodiment, upward facing step portions G and H are formed on both of the mounting surfaces of the lower frame F.

The main body of the receiving member 2 has a concave cross section that can be fitted to the lower portion of the lower frame F, and the hook portion 5 to the one step portion G is provided at the upper end of the one rising portion 4. In an inward state, a downwardly inclined portion 25 is continuously provided below the hook portion 5, and an outward horizontal piece 7 is continuously provided at the upper end of the other rising portion 6. ..

Further, the receiving tool 2 has an opening 9 for assembling the holding tool 3 from the bottom 8 to a part of the horizontal piece 7, and the bottom 8 exposed by the formation of the opening 9 is formed. The end face has a female screw portion 10 that opens to the other face side of the lower frame F (on the right side in FIG. 1), and the lower face of the female screw portion 10 is between the end face and the bottom face of the bottom portion 8. A downward inclined surface 11 is formed in a state where the corner is cut off. Further, the horizontal piece 7 is formed with a notch 12 for attaching a caster.

On the other hand, the presser foot 3 is formed by bending a metal plate into a substantially U-shape, and is provided on the upper end of the vertical fastening piece 15 to engage with the other step portion H of the lower frame F. In addition to having a joint piece 16, a locking piece 17 that is inclined along the inclined surface 11 of the receiving member 2 and is in contact with the inclined surface 11 is provided at the lower end of the fastening piece 15. Further, a long threaded hole 18 is formed vertically in the fastening piece 15.

The receiver 2 and the presser 3 described above engage the hook portion 5 and the inclined portion 25 of the receiver 2 with one step G of the lower frame 2 and are assembled in the opening 9 of the receiver 2. A gap S is formed between the female screw portion 10 (the end surface of the bottom portion 8) and the fastening piece 15 in a state where the engaging piece 16 of the attached pressing tool 3 is engaged with the other step portion H.

Then, when the screw 20 passed through the screw hole 18 of the retainer 3 is screwed into the female thread portion 10, the gap S is reduced and the locking piece 17 is lowered along the inclined surface 11. By sliding in one direction, the presser foot 3 is in a state of being lowered while being pressed toward the found surface of the lower frame F. At this time, since the screw through hole 18 is long in the vertical direction, it does not hinder the downward movement of the presser foot 3. As a result, the hook portion 5 and the inclined portion 25 of the receiving tool 2 are forcibly pressed against the lower frame F and engaged with the step G, and the engaging piece 16 of the presser tool 3 is forced to the lower frame F. The lower frame F is clamped by the receiving member 2 and the pressing member 3 from both sides of the door body.

The caster 1 has a male screw rod 23 having two nuts 22 and 22 mounted on the upper portion of the wheel cover 21, and the male screw rod 23 is fitted into the notch 12 of the receiver 2. The upper and lower positions can be adjusted by tightening both nuts 22 and 22 from above and below.

In the receiving tool 2 and the pressing tool 3 to which the casters 1 are attached in this manner, the pressing tool 3 is lowered together with the tightening of the screw 20, and the engaging piece 16 on the upper side of the pressing tool 3 is moved to the step 5 of the lower frame F. Since the hook 5 of the receiving tool 2 is made to bite strongly on the step G of the lower frame F as well, it is a cast door body E which is difficult to secure sufficient assembly accuracy. Also, a strong attachment state can be obtained.

In addition, in the above-described receiving tool 2 and pressing tool 3, the inclined surface 11 of the receiving tool 2 prevents the screw 20 from loosening due to the force of returning the pressing tool 3 to the upper side, and the mounting state is firm. Is kept for a long time.

The caster mounting device according to the present invention is not limited to the above embodiment in details of each constituent member, and the shape of the receiving member and the pressing member can be changed depending on the form of the lower frame of the door body. It is also possible to change the mounting position of the caster on the receiving device, and for the step of the lower frame, the ridges or grooves formed over the lower frame longitudinal direction or the partial unevenness Can be formed.

[0020]

[Effect of the device]

 As described above, according to the caster mounting device of the present invention, even if the door body is made of casting, which is difficult to ensure sufficient accuracy, it is possible to obtain a strong mounting state by simple work, and it is possible to achieve a long-term installation. It is possible to reliably maintain a good mounting state in which the screws do not come loose.

[Brief description of drawings]

FIG. 1 is a sectional view of a lower portion of a door for explaining a caster attaching device according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating a receiving tool and a pressing tool.

FIG. 3 is a front view of a gate having a caster mounting device according to an embodiment of the present invention.

[Explanation of symbols]

 1 Caster 2 Receiving Tool 3 Pressing Tool 5 Hook Part 10 Female Thread Part 11 Inclined Surface 15 Fixing Piece 16 Engaging Piece 17 Locking Piece 18 Screw Through Hole 20 Screw 25 Inclined Part E Door F F Lower Frame GH Step S Gap

Claims (1)

[Scope of utility model registration request] Claims: 1. A receiving member facing one of the found surface and a lower surface of a lower door frame, and a retainer for holding the lower frame together with the receiving device by being screwed to the receiving device from both sides of the door body. The receiving member is provided with a hook portion to a step formed on one of the finding surfaces of the lower frame, an inclined portion on the lower side of the hook portion, and the other finding surface side of the lower frame. An internally threaded portion that opens, and a downwardly sloping surface on the lower side of the internally threaded portion, the pressing member includes an engaging piece for a step formed on the other facet of the lower frame, and the internally threaded portion. And a locking piece having a vertically long threaded hole and facing each other with a gap therebetween, and a locking piece inclined along the inclined surface and contacting the inclined surface. Caster mounting device.