JPH0614037U - Resin molded case - Google Patents

Abstract

(57) [Abstract] [Purpose] When fixing the resin molded case to the main body, by changing this means, it is possible to provide effects related to resin molded product price reduction such as mold size reduction and processing cost reduction. is there. [Structure] An opening inlet portion (4) of a recess (3) for fixing the resin molded case (2) to the main body faces the same direction or the opposite direction to the opening (5) of the resin molded case (2). ,
Further, the opening entrance portion (4) of the concave portion (3) is characterized in that it is made thicker from the inside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for attaching a resin molded case to a main body in the electric and mechanical industrial fields.

[0002]

[Prior art]

 Conventionally, as a method for fixing the resin molded case, there are a method of making a hole in a part of the case mounting portion for tightening with a screw, and a method of fixing a case by providing a stopper portion on the main body.

[0003]

[Problems to be solved by the device]

 Generally, when the resin molded case (2) is large or the mounting position is limited, a mold is used to open the hole (8) for screwing the resin molded case (2) as shown in FIG. A method of sliding in three directions of X, Y, and Z with three or more pieces was adopted. For this reason, the die cost becomes high and the die itself becomes large. In addition, the number of molded products taken was reduced, leading to an increase in the unit price of molded products. Further, as shown in FIG. 6, a part of the resin molded case (2) is attached to the stopper (9a) of the main body (1) without using a fixing hole as a method of attaching the resin molded case (2), There is also a method of locking and fixing to (9b), but in this case the compatibility between the resin molded case (2) and the stoppers (9a) and (9b) becomes important, and the versatility becomes poor. Has the drawback of becoming smaller.

[0004]

[Means for Solving the Problems]

 Therefore, in order to solve the above-mentioned conventional problems, in the resin molded case (2) of the present invention, the opening inlet part (4) of the recess (3) for fixing to the main body (1) is the opening part of the case. It faces the same direction as (5) or the opposite direction, and since the opening entrance portion (4) of the recess (3) is thicker than the back, it is a screw lock when screwed.

[0005]

[Action]

 By the above means, the processing of the mold becomes easy, and the size and the number of molds are efficient. Further, since the recessed portion (3) of the resin molded case (2) has a screw lock, the case can be securely fixed to the main body (1).

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Generally, in resin molding, a mold consisting of two or more parts is brought into intimate contact with each other by a force such as hydraulic pressure. In this state, the heat-melted resin is poured into the mold to solidify the resin, and then the mold is cut off. Take out the molded product. At this time, if the method is such that the mold is moved only in the X and Y directions shown in FIG. 1, the mold can be effectively used. On the other hand, in the conventional resin molded case (2) shown in Fig. 5, the hole (8) of the case mounting part is oriented in the Z direction, so the mold is made into three pieces and slid in the Z direction. It was necessary to mold while doing. As a result, the space and size for sliding the mold, and the processing cost of the mold have become large. Therefore, in the present invention, attention was paid to the improvement of the hole (8) in the mounting portion of the resin molded case (2) in FIG. 5, and the mold could be suppressed to two pieces. 1 and 2 show a perspective view and a detailed view of a mounting portion of the present invention. Resin molding A recess (3) for fixing the case to the body (1) is provided in the same direction or in the opposite direction to the opening (5) of the case (2). This is because the mold is moved in the X and Y directions for molding, and the purpose is to omit sliding in the Z direction. Further, by making the opening entrance portion (4) of the recess (3) thicker from the inner side, rattling of the case due to vibration after the resin molding case (2) is attached to the main body (1) can be prevented. . Further, the recessed part (3) of the resin molded case (2) is not limited to one place, and a large number of recessed parts (3) can be provided, and the wall thickness around the recessed part may be increased to reinforce. Further, by attaching a linear or island-shaped projection (7) to the mounting surface (6) of the resin molded case (2) shown in FIG. 4 to the main body, the torque of the screw when fixing the screw is fixed. Adjustment is possible. Further, the case (1) can be securely fixed by forming a hole into which the protrusion (7) of the mounting surface (6) of the resin molded case (2) is fitted. FIG. 3 shows another embodiment of the present invention. It is used for fixing the washer at the time of screwing, by making further dents in the thickened part of the opening entrance part (4) of the case mounting recess (3) in the X and Y directions. Rattling can be minimized.

[0007]

[Effect of device]

 As described above, the present invention improves the means for fixing the resin molded product to the main body (1), thereby reducing the size of the mold, reducing the processing cost, and improving the efficiency of the number of molded products. Greatly reduces the price of molded products.

[Brief description of drawings]

FIG. 1 is a perspective view of a resin molded product of the present invention.

FIG. 2 is a detailed view of a mounting portion of the present invention.

FIG. 3 is another embodiment of the present invention.

FIG. 4 is an example in which a protrusion is provided on the mounting surface to the main body.

FIG. 5 is an example of a conventional resin molded product.

FIG. 6 is a cross-sectional view of an example in which a case is fixed by providing a stopper on the main body.

[Explanation of symbols]

 1 Main Body 2 Resin Molded Case 3 Recess 4 Entrance Portion of Recess 5 Opening of Resin Molded Case 6 Mounting Surface of Resin Molded Case to Main Body 7 Wire-shaped or Island-shaped Protrusion 8 For Screwing Resin Molded Case Holes 9a, 9b Stopper for body

Claims (2)

[Scope of utility model registration request] 1. A resin-molded case (2) mounted as a component to a body (1), wherein an opening inlet portion (4) of a recess (3) for fixing to the body (1) with a screw is a resin-molded case (2). A resin-molded case, which is oriented in the same direction as or opposite to the opening (5) of (2), and further, the opening entrance portion (4) of the recess (3) is made thicker from the inside. 2. The resin according to claim 1, characterized in that a linear or island-shaped projection (7) is provided on a mounting surface (6) of the resin molded case (2) to the main body (1). Molded case.