JPH05147604A - Device and method for mounting lid - Google Patents

Abstract

PURPOSE:To smoothly fit a lid on a box-like case main body by a method wherein the case main body is held at a specified position and the lid is turned on a center near the corner bend part, of the case so that the lid is fitted on the case main body. CONSTITUTION:A case main body 2 whese corner bends are chamfered is held at a specified position. A lid 1, which is on the tilt, is moved parallel in the direction shown by an arrow (a) by a parallel traversing mechanism 5 of a closing mechanism of the lid 1 so that tlne lid 1 is moved toward the chamfered corner part of the case main body 2 and an end of lid 1 is fitted on the corner part of the case main body 2. After that, the lid 1 is turned by a turning mechanism 6 so that the lid 1 is mounted tight on the case main body 2. Thereby, the beginning stage of mounting the l id 1 on the case maim body 2 can be easily done and the entire lid mounting step can be smoothly performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for fitting and mounting a lid on a case body, and more particularly to an apparatus and method for attaching a case lid in an automated packaging mechanism.

[0002]

2. Description of the Related Art FIG. 2 shows a conventional mechanism for mounting a cover body on a box of a case body. As shown, the lid 11
1 for holding the lid 11 in order to attach the box to the box 12.
3 and a mounting device including a mechanism 14 for holding the box 12 at a predetermined position have been known. In this device, each mechanism must be constructed with a fairly high degree of accuracy with respect to each other.
In the state in which 2 is positioned, the entire structure is fitted and fitted to the box 12 for moving the lid 11 in parallel by the mechanism 15.

[0003]

By the way, in the conventional mounting mechanism, in addition to the precision of the device mechanism, the precision of the box to be handled and the precision of the lid are required to be high enough for fitting. .. For example, in the case of a box or lid made of a resin molded product, as shown in FIG. 3, the width may be narrowed by curving near the center, and in such a case, the fitting of the lid to the box is not always necessary. It was not always done reliably, and there were often failures in fitting.

[0004]

According to the present invention, even in the case of a lid having a curved shape as shown in FIG. 3, for example, the end portions of the lid can be fitted with sufficient accuracy in most cases. This is because it is easy to use, and when attaching the lid to the box, the mechanism that fits this part first, and this part as a trigger, the whole is rotated and fitted and fitted. We will show you how to attach the box to the lid.

A specific mounting device is provided with a fixing means for the case body and a holding means for confining the lid body in the case body. The holding means for the lid body is either horizontal or vertical to the corner portion of the case body. It is composed of a moving mechanism for moving the cover body to the inside and a rotating mechanism for rotating the lid body thereafter and confining it in the case body. According to this mounting device, the closing operation is achieved by the smooth rotation by the fitting of the corner portion of the case body and the lid, and the automatic mounting is realized.

[0006]

With the apparatus for mounting a case lid according to the present invention, in the box body and the lid, which are difficult to obtain dimensional accuracy due to restrictions in processing technology and the like, the shape accuracy can be improved even if the central portion is slightly curved. It suffices that the end corner portion which is easy to obtain is of a predetermined size, and the lid body can be smoothly attached to the box body by first fitting the corner end portion.

On the other hand, when the lid body is mounted on the case body (box body), at least one of the corner portions of the box body is chamfered or given a rounded edge. Therefore, the trigger for mounting the lid on the box body can be easily fitted,
After that, the whole mounting can be smoothly realized by the pivotal movement of the lid, which is also suitable for the mounting automation. The reliability of the attachment is largely dependent on the organic coupling between the rotating mechanism and the parallel moving mechanism included in the lid holding means.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings based on specific embodiments.

FIG. 1 is an embodiment of the present invention and shows an external view of a mechanism for mounting a lid. In the figure, the lid 1 is attached to the case body 2 and the state shown in FIG.
The mounted state shown in (B) is obtained. In order to realize this mounting, the fixing means 4 for holding the case body 2, the holding means 3 for holding the lid body 1, the parallel moving mechanism 5 for moving the lid body 1 at a predetermined position in the held state, and the subsequent rotation operation of the lid body. There is provided a mounting device comprising a closing mechanism including a moving mechanism 6. Here, the corner end of the case body 2 is chamfered and R-shaped to facilitate the initial mounting of the lid.

Next, the operation of the mounting device will be described. The fixing means 4 holds the case main body 2 at a predetermined position.
On the other hand, the closing mechanism of the lid body 1 first moves the lid body 1 in an oblique state in parallel by the parallel movement mechanism 5 to move in the direction of the arrow 9 and one end of the lid body 1 in the direction of the chamfered corner of the case body 2. Fit. After that, the lid body 1 can be attached to the case body 2 by the rotation operation of the rotation mechanism 6. That is,
By the closing mechanism, the lid body 1 is given the operation of b as shown in FIG. 1B, and the work of closing the lid can be completed.

According to this method, if the holding means 3 of the lid 1 is provided with a flexible mechanism, and the end of the lid 1 and the case body box 2 are provided with some chamfers, it is possible to There is an advantage that fitting can be done without any difficulty.

Further, in FIG. 1, the translation mechanism 5 for translating the lid body is moved not only in the horizontal direction (arrow a) but also in the vertical direction (arrow c) to rotate the lid body 1 and the case body 2. It may be fitted to one end of the case body so as to obtain a trigger, and after this parallel movement, the lid body (1) is rotated by the rotation mechanism 6 with the fitting of the corner portion of the case body as a fulcrum.
Can be attached to the case body (2).

[0013]

As described above, according to the present invention, even if the accuracy of the box case body and the central portion of the lid body is poor, by using the rotating mechanism and the parallel moving mechanism in combination for the holding means for mounting the lid body. Higher precision is obtained by the fitting portion at the corner fulcrum that triggers one end, which has the effect of smoothing the entire fitting.

The same effect can be obtained even if the first parallel movement of the lid body is not in the horizontal direction of arrow a but in the vertical direction shown by arrow c.

[Brief description of drawings]

FIG. 1 is a lid mounting device (A) according to an embodiment of the present invention.
And perspective views of the case body and the lid body (B) mounted by this device

FIG. 2 is a perspective view of a conventional device for mounting a lid on a case.

FIG. 3 is a perspective view showing a deformed state of the case.

[Explanation of symbols]

 1 Lid 2 Case Main Body 3 Lid Holding Means 4 Case Fixing Means 5 Horizontal Moving Mechanism 6 Rotation Mechanism

Claims (2)

[Claims] 1. A fixing means for holding a case main body having a chamfered corner bent portion at a predetermined position, and a lid having a side wall overlapping with a side wall portion of the case main body, and centering around a corner bent portion of the case. A lid mounting device for a case, comprising: a lid holding means for rotating the lid to a position where the lid can be fitted into the case body. 2. When fitting a lid having a side wall that partially overlaps a side wall of the case body into a case body whose chamfered bent portion is chamfered, using the chamfered portion of the corner bent portion as a fulcrum, the lid is provided. A lid mounting method characterized in that the body is rotated to be mounted on the case body.