JP2006165270A - Structure for mounting cover material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for mounting a cover material for providing a cover to be removable with the simplified work step by reducing the number of screwing areas. <P>SOLUTION: An aperture 13 partially provided in one side surface 12 of a casing 11 and a cover material 21 which is supported and covered with an edge portion 14 of the aperture to shield the aperture 13 are included. Between the cover material 21 and the edge of aperture 14 of the casing 11, a screwing part 31 is formed in the side of one side surface 22 and a hooking part 32 and an engaging part 33 are formed in the side of the other side surface 243 for fixing the position. Moreover, the cover material 21 is mounted to be removable to the casing 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  [Technical Field] The present invention is a technique related to an attachment structure for a lid member that is detachably provided to cover an opening surface partially provided on one side surface of a casing.

  Some measuring instruments such as waveform recorders have an opening for inserting an optional measuring unit in a partial area of the casing. The opening is used to insert the measuring unit. When there is no need to do this, there are many examples in which a cover material is covered and covered from the viewpoint of design and safety measures.

  FIG. 4 is a side view showing a conventional example of the state in which the lid member is attached to the opening provided in the casing, and the opening 2 partially provided on one side of the casing 1 is provided with an opening edge thereof. The lid member 3 is supported, and is obscured by attaching it detachably by screwing using a set screw 6 at two locations, one side edge portion 4 side and the other side edge portion 5 side.

  However, in the case of the lid mounting structure shown in FIG. 4, the lid 3 must be fastened using at least two set screws 6, and the number of work steps for screwing increases accordingly. There was a problem that the work of cutting taps increased accordingly.

On the other hand, as this type of lid mounting structure, there has already been proposed a structure in which a casing made of a resin molded product and a lid can be detachably mounted under a simple fitting structure. (For example, refer to FIG. 1 of Patent Document 1).
JP-A-5-12561

  However, in the case of the lid mounting structure disclosed in Patent Document 1, a separate mold for the resin molded product is required, which increases the product cost.

  In view of the above-mentioned problems found in the prior art shown in FIG. 4 and Patent Document 1, the present invention provides a lid material that can be detachably covered by a simple operation by reducing the number of screwing points. An object is to provide a mounting structure.

  The present invention has been made to achieve the above-mentioned object, and is provided with an opening partly provided on one side surface of the casing and supported by the opening edge part so as to cover the opening part. A screw member on one side and a hook on the other side to fix the position between the cover and the opening edge of the casing. The main feature is that the lid member is detachably attached to the casing.

  Among these, in the case where the casing having the opening having a substantially square planar shape and the lid material having a substantially similar shape slightly larger than the opening, one of the facing members of the lid material is opposed. Of the two sides, on one side thereof, a screw hole formed on the opening edge side and a through hole for a set screw are formed at a position facing when the lid is applied, and is fixed by the set screw. And the other side is formed between the bent edge that enters the lower surface of the opening edge and the remaining part of the opening edge, and the opening edge. It is desirable to provide a fitting part formed between the stop part and the opening edge part in a positional relationship facing the remaining part, thereby attaching the lid member detachably.

  According to the present invention, between the lid member and the front opening edge of the casing, a screwing portion is formed on one side and a hooking portion and a fitting portion are formed on the other side. Since the structure can be simplified by reducing the number of screwed parts, it can be easily attached under the condition that the position of the lid material is securely fixed at the time of lid application. . Moreover, since this invention can be implement | achieved without using a molding die, it can be made to contribute to cost reduction effectively.

  1 is a side view showing an example of the present invention, FIG. 2 is a cross-sectional view in the direction of arrows AA in FIG. 1, and FIG. 3 is in the direction of arrows BB in FIG. The expanded sectional view of each is shown.

  According to these drawings, the lid mounting structure according to the present invention includes an opening 13 partially provided on one side surface 12 of the casing 11 and an opening edge 14 for covering the opening 13. And is applied to the lid member 21 that is supported and covered.

  Among these, the casing 11 constitutes a measuring device such as a waveform recorder, for example, and an opening 13 having a substantially rectangular shape used when, for example, a measuring unit prepared as an option is inserted is one side surface 12 thereof. Is provided.

  On the other hand, the lid member 21 is formed to have a shape that is substantially similar to the opening 13 and can be supported via the opening edge 14 on the opening 13 side when the lid is applied. It is like that.

  In addition, on one side 22 side of the opposed short sides of the lid member 21, the screw screw 17 formed on the opening edge 14 side and the set screw 35 under the positional relationship facing when the lid is applied. Through holes 23 are formed, and screwed portions 31 can be formed therebetween by screwing set screws 35 through which the through holes 23 are inserted into the screw holes 17. .

  Furthermore, the other side 24 side of the facing short side of the lid member 21 corresponds to the bent portion 25 entering the lower surface 16 side of the opening edge portion 14 and the remaining portion 26 thereof in the corresponding positional relationship. The latching portion 32 can be formed between the opening edge portion 14 and the positional relationship.

  In addition, between the remaining portion 26 and the opening edge 14 that is in a positional relationship facing the remaining portion 26, the concave portion 27 is fitted into the lower surface 21 a on the remaining portion 26 side and the concave portion 27 is fitted to the upper surface 15 on the opening edge 14 side. By providing the convex portions 18, the fitting portions 33 for fixing the positions of each other can be formed.

  This will be described in more detail with reference to the illustrated example. On the other side 24 side of the lid member 21, the bent portion is cut and bent in a tongue shape so as to enter the lower surface 16 side of the opening edge 14. The part 25 is formed in the central part.

  Thereby, the opening edge part 14 which has the corresponding positional relationship between each remaining part 27 and the bending part 25 which will be located in the other side 24 of the lid | cover material 21 on both sides of the bending part 25 is formed. The latching portion 32 is formed by positioning.

  Further, between each remaining portion 26 and the opening edge portion 14 facing each other, a concave portion 27 is separately provided on the lower surface 21a on each remaining portion 26 side, and on the upper surface 15 on the opening edge portion 14 side. The fitting part 33 is formed by providing the convex part 18 fitted to the concave part 27, respectively.

  Next, the operation and effect of the present invention having the above-described configuration will be described with reference to the illustrated example. With respect to the opening 13 of the casing 11 in the opened state, the positional relationship that completely covers the opening side is provided. Then, the lid member 21 is positioned.

  Next, the bent portion 25 formed on the other side 24 side of the lid member 21 is fed so as to be inserted into the lower surface 16 side of the opening edge portion 14 of the casing 11. Accordingly, the remaining portions 26 that are also located on the other side 24 side are arranged so as to be placed on the upper surface 15 side of the opening edge portion 14.

  That is, the casing 11 side and the lid member 21 are latched between each other by positioning the opening edge portion 14 in a space secured between the bent portion 25 of the lid member 21 and each remaining portion 26. The part 32 can be formed.

  In addition, at this time, the fitting part 33 is fitted between the remaining part 26 of the lid member 21 and the opening edge part 14 in a positional relationship facing these by fitting the convex part 18 into the concave part 27. Since it can be formed, the position of the other side 24 of the lid 21 can be fixed relative to the opening edge 14 side.

  Thus, when the latching portion 32 and the fitting portion 33 are formed between the other side 24 side of the lid member 21 and the opening edge 14 side, the passage on the one side 22 side of the lid member 21 is passed. The hole 23 also faces the screw hole 17 provided on the opening edge 14 side.

  After the through hole 23 on the one side 22 side of the lid member 21 and the screw hole 17 on the opening edge 14 side are faced in this way, the lid 21 is fed by screwing the set screw 35 into the lid 21. Can be covered by covering the opening 13 of the casing 11. In addition, when the lid is applied, the screw member 31 is formed on one side 22 side of the lid member 21 and the fitting part 33 is formed on the other side 24 side. Can be installed under the condition The lid member 21 can be easily removed by following the procedure opposite to the procedure described above.

  Therefore, the lid member 21 can be securely attached under a state where the lid member 21 is fixed to the opening 13 side of the casing 11 under a simple structure in which the number of screwing points is reduced as compared with the prior art.

  The above is the description of the present invention based on the illustrated example, and the specific content of the present invention is not limited to this. For example, the planar shape of the lid member can be appropriately determined in relation to the specific shape of the opening on the casing side. Further, the position, shape and number of the bent portions formed on the cover material can be appropriately selected as desired, and in short, the hooking portion for hooking the opening edge with the remaining portion. It only needs to be able to form.

  On the other hand, the fitting portions are necessary for fixing the position of the lid member to the casing side, and the number of the fitting portions may be at least one. In addition, the fitting portion can be formed by providing a concave portion on the opening edge side and a convex portion on the lid material side, or forming the concave portion as a through hole instead of a hole portion. Furthermore, the latching portion can be formed by providing a structure corresponding to a bent portion or a remaining portion of the lid material on the opening edge side and simply inserting the lid material side.

  The present invention is not only a measuring device such as a waveform recorder, but also has an opening in the casing, and the cover mounting structure in all fields where the opening needs to be detachably covered with the cover. Can be applied.

The side view which shows an example of this invention. Sectional drawing in the AA arrow direction in FIG. The expanded sectional view in the BB arrow direction in FIG. The side view which shows the prior art example of the attachment state of the cover material with respect to the opening part with which a casing is provided.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Casing 12 One side surface 13 Opening part 14 Opening edge part 15 Upper surface 16 Lower surface 17 Screw hole 18 Protruding part 21 Cover material 21a Lower surface 22 One side edge 23 Through-hole 24 Other side edge 25 Bending part 26 Remaining part 27 Recessed part 31 Screwing Part 32 Latch part 33 Fit part 35 Set screw

Claims (2)

An opening partly provided on one side of the casing, and a cover member that is supported and covered by the opening edge to cover the opening,
Between the lid member and the opening edge of the casing, a screwing portion is formed on one side to fix the position, and a latching portion and a fitting portion are formed on the other side, An attachment structure for a lid material, wherein the lid material is detachably attached to the casing. The casing having the opening that has a substantially square planar shape, and the lid material that has a substantially similar shape that is slightly larger than the opening,
A screw hole formed on the opening edge side and a through hole for a set screw are formed at a position facing the opening edge on one side of the two opposing sides of the lid member. And providing a screwed portion to be fastened by the set screw,
On the other side, a bent portion that enters the lower surface side of the opening edge portion in a corresponding positional relationship and a remaining portion thereof, and a hook portion that is formed between the opening edge portion, and the remaining portion The lid mounting structure according to claim 1, further comprising a fitting portion formed between the opening edge portion and the opening edge portion in a positional relationship facing each other.

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