JPH062013Y2 - Parts fastening device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a fastening device for an accessory attached to a body member such as a casing of a ventilation fan.

[Conventional technology]

FIGS. 6 and 7 show a conventional parts fastening device disclosed in Japanese Utility Model Laid-Open No. 60-65539, and in the case of FIG. 6, an outer box (21).
A cut-and-raised claw (22) and a locking groove (23) formed by the cut-and-raised claw are formed to face each other on one side wall, and a component mounting plate (24) is placed between the locking grooves (23) formed by both cut-and-raised claws. Is designed to be inserted and locked,
Further, in the case of FIG. 7, a locking hole (25) is provided on one side wall of the outer box (21), and the part mounting plate (24) is partially bent to hold the claws (26) and these claws. A locking groove (27) is formed.

[Problems to be solved by the invention]

Since the conventional component fastening device is configured as described above, in both cases of the cut-and-raised claw (22) of FIG. 6 and the embracing claw (26) of FIG. The bending work not only requires high-precision dimensional control in order to eliminate "backlash" after engagement, but also the locking hole (25) formed in one side wall of the outer box (21). There was also a problem that "burrs" were left at the edges of the openings when they were cut and raised, and these became "variations" when assembling the component mounting plate (24).

It is an object of the present invention to obtain a means for attaching a component mounting plate that does not rely on the cut-and-raised claws or the hugging claws, which requires such highly accurate bending work.

[Means for solving problems]

In the case of this invention, the mounting wall (1a) of the main body member has a locking hole.
(2), and the component mounting plate (3) is integrally provided with a bent tongue (3a) and a backing plate (3b) which are displaced in the front-back and up-down directions.
In addition, a positioning stopper piece (3c) is formed on the contact plate by cutting and raising.

[Action]

In the case of this invention, when the component mounting plate (3) is engaged, the bent tongue (3a) is superposed on the back surface of the mounting wall (1a) of the main body member, and the backing plate (3b) is mounted on the mounting wall. The mounting wall (1a) of the main body member is sandwiched between them by abutting against the front surface of the body, and the component mounting plate (3) is positioned in the engaged state by bending the tongue piece (3).
Insert a) by inserting it into the horizontal hole (2a) of the locking hole (2) and pulling it up along the vertical hole (2b), and after the component mounting plate (3) is in the engaged state, the horizontal hole opposite to the vertical hole (2b). This is done by engaging the opening edge (2c) of (2a) and not attaching the component mounting plate (3) to the mounting wall (1a).

〔Example〕

An embodiment of the component fastening device of the present invention will be described below.

That is, in FIGS. 1 to 3, (1) is a body member such as a casing in a ventilation fan or the like, and (2) is an L-shaped or inverted L-shaped stamped on a mounting wall (1a) forming one side wall thereof, The locking holes are symmetrically arranged toward the outside opposite each other, and are formed in an L-shape and an inverted L-shape with a wide horizontal hole (2a) and a narrow vertical hole (2b). (3) is a component mounting plate into which the left and right bent tongues are inserted into the respective locking holes (2) and overlapped with the back surface of the mounting wall (1a) in the hole (2b) in the engaged state. The piece (3a) and the above-mentioned mounting wall in the above-mentioned engaged state by being displaced in the longitudinal and vertical directions with respect to these tongue pieces.
A patch plate (3b), which is long in the left-right direction and is in contact with the front surface of (1a), is provided in series. (3c) is a stopper piece extruded and formed on this contact plate, and this stopper piece (3c) is the mounting wall (1a) of the body member (1) when the component mounting plate (3) is in the predetermined engagement state. It engages with the opening edge (2c) of each of the locking holes (2) provided on the base plate and holds the component mounting plate (3) in the engagement position. Further, (3d) in the figure indicates a mounting hole for an accessory provided on the component mounting plate (3).

In the above configuration, when mounting the component mounting plate (3), the left and right bent tongues (3a) are inserted into the holes (2a) as shown by arrows in the state shown in FIG. 1, and then the state shown in FIG. Then, this is pulled up as shown by an arrow in the figure, and each bent tongue (3a) is superposed on the back surface of the mounting wall (1a) of the main body member at the hole (2b) as shown in FIG. In that case, the contact plate (3b) of the component mounting plate (3) is brought into contact with the front surface of the mounting wall (1a) at the hole (2a), and the stopper piece (3c) provided on this contact plate (3b) is By engaging the opening edge (2c) of the hole (2a) as shown in the figure, the component mounting plate (3) is held at the engagement position.
When removing the component mounting plate (3), the stopper piece (3c) should be disengaged and the reverse operation at the time of mounting should be performed.

Further, FIG. 4 shows another embodiment of the present invention in which the above-mentioned locking hole (2) is provided upside down, and FIG. 5 shows the other body to which the component mounting plate (3) is attached. FIG. 6 shows still another embodiment of the present invention in which the member (1) has a different shape and the mounting wall is horizontal.

(Effects of the Invention) Since the component fastening device of the present invention is configured as described above, the component mounting plate is fastened to the mounting wall of the main body member by bending the left and right bent tongues which are different from each other in the front-back and up-down directions. And the backing plate, and the size of the front-rear space between them can be set very easily, and the two left and right locking holes and the tongue are engaged, and the stopper is engaged. Since it engages with the opening edge of the lateral hole of the locking hole, which is the end of the attachment, the vertical "backlash" after engagement is such that the distance between the upper end of the tongue and the lower end of the stopper piece is By matching the distance between the edge and the lower edge of the lateral hole, "backlash" in the lateral direction
Can be eliminated by matching the distance between the bent portions of the left and right tongues and the distance between the inner edges of the left and right locking holes. Also, since a stopper piece is used to position the component mounting plate in the engaged state, it is possible to reliably prevent the component mounting plate from moving in the slack direction due to vibration, etc. Furthermore, insert the tongue piece into the lateral hole to insert a vertical hole. Since the component mounting plate is mounted by pulling it up along with, the mounting of the component mounting plate can be performed very easily only by moving the front, rear, up, and down, and at the same time, the lateral hole for inserting the tongue is provided with the stopper piece. Since it is used for engaging the parts, there is a peculiar effect that it is not necessary to newly provide a structure for setting the component mounting plate in the non-detachable state on the mounting wall.

[Brief description of drawings]

FIGS. 1, 2 and 3 are perspective views for explaining the engaging operation of the component mounting plate in the engaging device of the present invention,
FIGS. 4 and 5 are exploded perspective views showing another embodiment of the present invention, and FIGS. 6 and 7 are exploded perspective views showing a conventional parts fastening device. In the figure, (1) is the main body member, (1a) is its mounting wall, and (2)
Is a locking hole, (2a) is a wide horizontal hole, (2b) is a narrow vertical hole, (2c) is an opening edge, (3) is a component mounting plate, (3a) is a bent tongue, and (3b) is a contact. The plate (3c) shows a stopper piece.

Claims (1)

[Scope of utility model registration request] 1. A body member having L-shaped and inverted L-shaped and having laterally symmetrical locking holes in its mounting wall, the lateral holes having a wide width are symmetrically arranged from a narrow vertical hole toward the opposite sides. Left and right bent tongues which are inserted into the lateral holes of the respective locking holes and overlapped with each other on the rear surface of the mounting wall in a locked state pulled up along the vertical holes, and front and rear and up and down with respect to these tongues. A component mounting plate that integrally includes a backing plate that abuts against the front surface of the above-mentioned mounting wall in a state in which the mounting wall of the main body member is clamped by the bent tongue and the backing plate. At the same time, the tongue piece is inserted into the horizontal hole in the backing plate, and after the component mounting plate is engaged, the component mounting plate is engaged with the opening edge of the horizontal hole opposite to the vertical hole. Forming a positioning stopper piece that makes the non-detachable state on the mounting wall Component engagement deposition apparatus characterized by allowed.