JPH0541052U - Box for fixing parts - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a component fixing box for inserting an electrical component such as a fuse used in an electric wiring system of an automobile, etc. It is an object of the present invention to provide a component fixing box that can be simultaneously inserted and attached, and that can also detect a half-inserted electrical component at a glance. [Structure] A locking groove 2 is provided on a peripheral edge of a top plate 2b of a cover 2 at a position corresponding to an electric component 1a inserted into a box body 1.
together with the locking hole 2c formed with c ₁ is provided, the locking projections 3a formed in the body portion of the plug-like locking member 3 constituting the locking groove 2c ₁ and the locking means of the locking hole 2c and, locking force between the locking groove 2c ₁ of the locking projection 3a and the locking hole 2c of the locking member 3 is slightly larger than the largest insertion force normal electrical components 1a, the locking member 3 The length L of the lower portion 3b is set such that the lower end 3b of the locking member 3 abuts on the upper end 1a 'of the electric component 1a when the cover 2 is attached to the box body 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to improvement of a component fixing box into which electric components such as fuses used in electric wiring systems of automobiles and the like are inserted.

[0002]

[Prior Art]

FIG. 7 is a perspective view of a conventional component fixing box a. In FIG. 7, locking protrusions b ₃ and b ₃ are formed on both side surfaces of a box body b in which an electric component b ₂ is inserted into an inner housing b ₁ and are formed on both side surfaces of a cover c. The flexible locking pieces c ₂ , c ₂ and the locking means are configured. Incidentally, b ₄ is the mounting portion of the box the body b.

[0003] The electrical component b ₂ as the corresponding position in the top board c ₁ of the inner surface of the cover c, with variable Shiwahen c ₃ of length m is projected in the direction of the electric component b _2, the cover c is The length of the flexible piece c _{3 is set such that} the tip c ₃ ′ of the flexible piece c ₃ comes into contact with the upper end b ₂ ′ of the electric component b ₂ and then bends when the box body b is capped (FIG. 8). , See FIGS. 9 (a) and 9 (b)).

Since the conventional example is configured as described above, when in use, first, the electric component b ₂ Each housing b₁Temporarily insert into the electrical component b₂Flexible locking piece c from above₂However, the locking protrusion b of the box body b₃Wear so that it will be locked to.

In this crowning process, first, as shown in FIG. 9A, the tip c ₃ ′ of the flexible piece c ₃ of the cover c abuts the upper end b ₂ ′ of the electric component b ₂ all at once, The tip c ₃ ′ pushes down the upper end b ₂ ′ of the electric component b ₂ all at once. By this pushing-down force, the electric part b ₂ is inserted into and inserted into the housing b ₁ . Further, since the flexible piece c ₃ is lowered downward until the cover c is completely attached, the tip c ₃ ′ of the flexible piece c ₃ after the electric component b ₂ is inserted into the housing b _1. As shown in FIG. 9 (b), it also bends as shown in FIG. 9 (b) to prevent the electric component b _{2 from} coming off due to vibration or the like after mounting.

However, when the cover c ′ as shown in FIG. 10 has a step or the length is long even when straight, when the cover c ′ is crowned to the box body b ′, the cover c ′ is originally indicated by the broken line x. What should be in the position is deformed to the position shown by the solid line in the figure. For this reason, especially when there is a hard-to-insert electric part b ₅ in the central part, the flexible piece c ₅ should be pushed with a short stroke, and the cover c'is attached to the box body b '. Also, the electric component b ₅ remains in the half-inserted state. To make matters worse, since the half-inserted state of the electric component b ₅ cannot be detected at a glance from the outside, it is extremely difficult to find this traversal in advance.

[0007]

[Problems to be solved by the device]

 In view of the above points, the present invention is a component fixing box for inserting electric components such as fuses used in electric wiring systems of automobiles, etc., and the electric components are simultaneously inserted in the process of attaching the cover to the box body. An object of the present invention is to provide a component fixing box that can be worn and at the same time detect semi-inserted electrical components at a glance.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a box consisting of a box body in which electric parts are inserted and a cover attached to the box body, and a top plate facing the electric parts of the cover. A locking hole having a locking groove is provided on the periphery, and the lower part of the locking member having a locking projection to be locked in the locking groove abuts on the electric component and is locked in the locking groove. The locking force between the locking projection and the locking groove of the locking member is set to be slightly larger than the insertion force of the normal electrical components.

[0009]

[Action]

 A locking hole is formed at a position corresponding to the electric component on the top plate of the cover of the component fixing box for inserting an electric component such as a fuse, and a locking member having a locking portion is formed in the locking hole. Lock on.

The lower part of the locking member locked in the locking hole of the cover comes into contact with the upper end of the electrical component that can be inserted with a normal insertion force, and the electrical component is pressed down when the cover is attached. To do. For electrical parts that require excessive insertion force, the locking force between the locking member and the locking hole is set so that the locking member separates from the locking hole while the locking member is pressing down the electrical component. Is set, the locking member corresponding to the half-inserted electric component based on the abnormal insertion force is detached from the cover, and the half-insertion of the electric component can be detected at a glance.

[0011]

【Example】

 FIG. 1 is a perspective view of a component fixing box A according to an embodiment of the present invention. In FIG. 1, locking protrusions 1c and 1c are formed on both side surfaces of a box body 1 in which an electric component 1a is inserted into an inner housing 1b, and a flexible member formed on both side surfaces of a cover 2. The stoppers 2a, 2a constitute a locking means. In addition, 1d is a mounting portion of the box body 1.

At a position of the top plate 2b of the cover 2 facing the electric component 1a inserted into the box body 1, a locking groove 2c is formed on the peripheral edge.₁And a locking projection 3a formed on the body of the plug-shaped locking member 3 is formed in the locking groove 2c of the locking hole 2c. ₁ And the locking means.

The engagement force between the engagement protrusion 3a of the engagement member 3 and the engagement groove 2c ₁ of the engagement hole 2c of the top plate 2b of the cover 2 is slightly larger than the maximum insertion force F of the normal electric component 1a. It is set large. Further, the lower portion 3b of the locking member 3 is reduced to a small diameter and extended downward, and the length L of the extended portion is such that when the cover 2 is attached to the box body 1, the lower portion 3b of the locking member 3 is The length is set to abut on the upper end 1a 'of the electric component 1a.

Since the embodiment according to the present invention is configured as described above, when in use, the locking member 3 is first inserted into the locking hole 2c of the cover 2 as shown in FIG. The locking projection 3a of 3 is locked in the locking groove 2c ₁ of the locking hole 2c. Next, the electric components 1a are temporarily inserted into the respective housings 1b of the box body 1, and the cover 2 in which the locking member 3 is locked to the cover 2 is positioned above the box body 1, and the cover 2 The flexible locking piece 2a of the cover 2 is locked to the locking projection 1c of the box body 1 to be crowned.

In this crowning process, the lower part 3b of the locking member 3 locked to the cover 2 contacts the upper end 1a 'of the electric component 1a which is slightly out of the normal state due to temporary insertion. , The electric component 1a is pressed downward. At this time, the normal electric component 1a is inserted to the correct position with an insertion force equal to or less than the maximum insertion force F of the normal electric component 1a (see FIG. 4).

However, the locking member 3 that presses down the electric component 1a that requires an excessive insertion force F ′ has a relationship between the locking groove 2c ₁ of the locking hole 2c and the locking projection 3a of the locking member 3. the engagement of the locking groove 2c ₁ of the locking projection 3a and the locking hole 2c of the locking member 3 receives a reaction force not greater than stopping force F disengaged, the locking member 3 is jumping on the cover 2 (See Figures 4 and 5). Therefore, since it is possible to detect at a glance that the electric component 1a immediately below the protruding locking member 3 is half-inserted, the electric component 1a is inserted by the lower portion 3b of the protruding locking member 3 into the insertion force F '. The insertion is performed by pushing with a larger insertion force F ″, and the locking member 3 is locked in the locking hole 2c of the cover 2 to complete the crowning of the cover 2 (see FIG. 5).

In FIG. 6, a string-shaped strip 3c 'is formed on the locking member 3', and the string 3c 'is engaged with the protrusion 2d' of the cover 2'so that the locking member 3'does not scatter. It is another embodiment. The other structure and operation are the same as those in the first embodiment, and the description thereof will be omitted.

[0018]

[Effect of the device]

 As described above, the present invention is a component fixing box in which electrical components such as fuses used in electric wiring systems of automobiles and the like are inserted, and the electrical components are simultaneously assembled in the process of attaching the cover to the box body. It features a box for fixing parts that can be inserted and can be detected at a glance with half-inserted electric parts, and troubles can be prevented.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a component fixing box according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of an essential part of a component fixing box according to an embodiment of the present invention.

FIG. 3 is a vertical sectional view of a cover of a component fixing box according to an embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of the process of wearing the cover.

FIG. 5 is a vertical cross-sectional view showing a state in which the cover is finished wearing the cover.

FIG. 6 is a perspective view of a second embodiment according to the present invention.

FIG. 7 is a perspective view of a conventional example.

FIG. 8 is a partially cutaway perspective view of a cover of a conventional example.

FIG. 9A is an enlarged vertical cross-sectional view of an initial stage when the cover of the conventional example is crowned, and FIG. 9B is an enlarged vertical cross-sectional view of a state where the crown cover of the conventional example is finished.

FIG. 10 is a vertical cross-sectional view of a conventional component fixing box for a stepped cover.

[Explanation of symbols]

A Parts fixing box 1 Box body 1a Electric component 1b Housing 1c Locking protrusion 2 Cover 2a Flexible locking piece 2b Top plate 2c Locking hole 2c ₁ Locking groove 3 Locking member 3a Locking protrusion 3b Lower part

Claims (1)

[Scope of utility model registration request] 1. A box comprising a box body in which electric parts are inserted and a cover attached to the box body, wherein a locking groove is formed on a peripheral edge of a top plate of the cover facing the electric parts. A lower part of the locking member having a locking hole and having a locking projection to be locked in the locking groove comes into contact with an electric component, and the locking projection of the locking member is locked in the locking groove. A box for fixing parts, characterized in that the locking force with the locking groove is set to be slightly larger than the insertion force of a normal electrical component.