JP4451819B2 - Musical instrument case - Google Patents

Description

  The present invention relates to a musical instrument case suitable for storing flutes and the like.

  In a musical instrument case composed of a case body and a case lid, a structure in which a frame for attaching a key or a hinge is fitted to each case is usually taken. Although these frames are formed by plastic injection molding, they are long objects having a complicated cross section. Therefore, they cannot avoid being bowed during the cooling process after molding. Therefore, when the frame is attached to the case and the lid is closed, there is a gap between the frames, which makes the instrument case uncomfortable. Furthermore, since the appearance of the musical instrument case must be elegant, it is not permitted to attach the frame to the case using a large number of screws.

  As mentioned above, a long object with a complicated cross section, such as a frame of a musical instrument case, is unavoidably bowed during the cooling process after plastic injection molding. There is a gap and it is bad. Also, since the appearance of the instrument case is important, it is not appropriate to attach it using screws. Therefore, it is necessary to obtain a frame that does not have a gap when the case lid is closed, without paying attention to formation.

  In order to solve the above-mentioned problems, the frame attached to the case main body and the case lid of the musical instrument case has a fitting groove with the case. A musical instrument case having protrusions on the contact surface is obtained.

  In this invention, since the protrusion is provided on the contact surface of the fitting groove of each frame with the case, when the case cover is closed, the frame is pushed by the amount including the protrusion, so that the other frame The gap between the frames can be eliminated.

  A plurality of ridges having a height of about 1 mm are provided at positions corresponding to the front of the case of the fitting grooves with the cases of the frames (three are suitable).

  1 is a front view of the musical instrument case of the present invention, FIG. 2 is a top view of FIG. 1 viewed from the direction F, FIG. 3 is a side view of FIG. The case main body 1 is fitted with a case main body side frame 20, and the case cover 2 is fitted with a case cover side frame 30. The case body side key body 4 is attached to the frame 20, the case body side key body 4 is attached to the frame 30, and the case lid side key body 5 is attached to the frame 30. is doing. Reference numeral 6 denotes a push button for opening the key. Reference numeral 11 denotes a convex portion that also serves as a leg and bulges on the bottom surface of the case body.

  4 is a front view of the case body side frame 20, FIG. 5 is a top view of FIG. 4 viewed from the F direction, FIG. 6 is a bottom view of FIG. 4 viewed from the D direction, and FIG. , 21 is an outer peripheral portion of the frame, 22 is an inner peripheral portion, 23 is a fitting groove which is between the outer peripheral portion and the inner peripheral portion and is fitted to the upper edge of the case body 1, and 24 is a lid side frame which will be described later 30 is an engagement groove that engages with the 30 engagement protrusion, 25 is an attachment portion of the key body 4, and 26 is a protrusion provided on the surface of the fitting groove 23 that contacts the upper edge of the case body 1, At the front of the case 10, a plurality of pieces having a height of about 1 mm are provided. Reference numeral 27 denotes a screw hole for attaching the key body 4.

  8 is a front view of the case lid side frame 30, FIG. 9 is a top view of FIG. 8 viewed from the F direction, FIG. 10 is a bottom view of FIG. 8 viewed from the D direction, and FIG. 31 is an outer peripheral portion of the frame, 32 is an inner peripheral portion of the frame, 33 is a fitting groove fitted to the lower edge of the case lid 2, and 34 is an engaging groove 24 of the case body side frame 20 described above. 35 is a key 5 attachment portion, 36 is a protrusion provided on the contact surface of the fitting groove 33 with the lower edge of the case lid 2, and like the protrusion 26, At the front of the case 10, a plurality of pieces are provided with a height of about 1 mm. Reference numeral 37 denotes a screw hole for attaching the key body 5.

  Conventionally, the frames 20 and 30 are inevitably bowed during injection molding due to the cross-sectional shape, and there is a problem that a gap is formed between the frames when the case lid is closed. In this case, a protrusion is provided at the front of the case where the frame is in contact with the edge of the case, so that when the case lid is closed, the frame is pressed through the protrusion, and the protrusion A gap between frames can be eliminated by appropriately selecting the position, height, and number of strips.

  When manufacturing a musical instrument case for storing a musical instrument such as a flute, the present invention eliminates the need to use extra care in forming a frame to be fitted to the edge of the case, thereby streamlining the production process.

Front view of instrument case Top view of FIG. 1 as viewed from the F direction Side view of FIG. 2 as viewed from the S direction Front view of case body side frame Top view of FIG. 4 as viewed from the F direction Bottom view of FIG. 4 from the D direction AA sectional view of FIG. Front view of case lid side frame Top view of FIG. 8 viewed from the F direction Bottom view of FIG. 8 viewed from the D direction AA sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case main body 2 Case lid 3 Key body 4 Main body side key body 5 Cover side key body 6 Pushbutton 10 Case 11 Convex part 20 Case main body side frame 21 Outer peripheral part 22 Inner peripheral part 23 Fitting groove 24 Engaging groove 25 Key body Mounting portion 26 Projection 27 Key body mounting hole 30 Case lid side frame 31 Outer peripheral portion 32 Inner peripheral portion 33 Fitting groove 34 Engaging projection 35 Key body mounting portion 36 Projection 37 Key body mounting hole

Claims (1)

In a musical instrument case that includes a case body and a case lid, and each of which is fitted with a key attachment frame, the case body side frame and the case lid side frame are formed by plastic injection molding. Or, it has a fitting groove that fits with the case lid, and there are about three protrusions with a height of about 1 mm so as to partially fill the groove in the contact surface of each groove with the case. Musical instrument case featuring

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