JPS6212762Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a key lock device.

This type of locking body into which a key is inserted is rotatably fitted into a holder, and this holder is inserted into a panel, and is used as a variety of locking devices such as filler lids for automobiles. There is.
The means for attaching the holder to the panel is to clamp the panel with a flange formed at the end of the holder and a stopper member such as a retaining ring inserted into the holder perpendicular to its axis, but it is not attached separately from the holder. Since a retaining ring is required, the number of parts increases, and it is troublesome to insert the retaining ring. Furthermore, if the retaining ring is lost, it becomes impossible to attach it.

In addition, a flange is formed at the end of the holder, and a spring piece is cut and raised on the outer periphery of the holder, so that when the holder is fitted into the mounting hole of the panel, the spring piece is temporarily retracted inward and then returned to the outside. There is also a method of joining the flange of the holder to the surface of the panel and abutting the edge of the spring piece against the inner surface of the panel to prevent the holder from moving in the axial direction. It is difficult to fix the movement, and it becomes necessary to insert packing between the flange and the panel. The spring piece also has the drawback of being easily broken and lacking in durability when the external force in the axial direction of the holder is large.

This idea was developed in view of these points, and the purpose is to create a key lock device that can fix the axial and rotational movements of the holder with a small number of parts and that can be easily assembled. be.

This idea includes a holder that rotatably holds the locking body into which the key is inserted, a circular mounting hole into which the holder is inserted, and a wide notch cut outward from the opening edge of this mounting hole. A panel having a plurality of different notch holes is provided, and an expanded surface that joins to the inner surface of the panel is formed on a part of the outer periphery of the holder, and the width is formed to match the width of each of the notch holes. A plurality of locking pieces are formed so as to be elastically flexible in the axial direction of the holder, and the locking pieces are large enough to pass through the notch holes on the outer periphery of the end of the holder. The present invention is characterized in that a plurality of projecting pieces are formed that extend in a radial direction different from the stopper pieces and hold the panel between itself and the expanded surface. Therefore, by passing the protruding piece through the notch hole and rotating the holder around its axis, it can be attached to the panel using the protruding piece and the expanded surface. In addition, each notch hole has a different width dimension, and the locking pieces that engage with these holes are also formed to match the width dimensions of the notch hole, so the holder can be easily rotated in the installed state. It is constructed so that the directionality is fixed.

An embodiment of this invention will be described based on the drawings. Reference numeral 1 denotes a panel such as an opening/closing lid for opening and closing a fuel supply port of an automobile, and is rotatably supported on the vehicle body by a hinge (not shown). As shown in FIG. 5, this panel 1 has a circular mounting hole 2 and cutout holes 3 and 4 having different widths.

A holder 5 is inserted into the mounting hole 2, and a locking body 6 is rotatably held in the holder 5 while being biased in the locking direction by a spring 7.
The holder 5 is made of elastic plastic and is integrally formed with a cylindrical portion 8 fitted into the mounting hole 2 and a ring-shaped flange 9 joined to the front surface of the panel 1. The cylindrical portion 8 is separated into divided bodies 8a and 8b which are opened and closed using a thin flexible part 10 located at a part of the outer circumference as a hinge, and separation edges 11 and 12 are formed at the edges of these divided bodies 8a and 8b. has been done. Furthermore, the cylindrical portion 8 has the panel 1
An expanded surface 13 is formed to be joined to the back surface of the holder, and locking pieces 14 and 15 are formed to be elastic and flexible and engage the notch holes 3 and 4 with matching width dimensions, respectively. There is. The flange 9 has a projecting piece 16 that is slightly smaller than the notch holes 3 and 4.
17 is formed.

As shown in FIG. 4, the locking body 6 has a circumferential portion 18 and a hook portion 19 that are fitted into the cylindrical portion 8. A projecting piece 22 supported by a receiving surface 21 of
and a locking edge 23 are formed. A stopper 24 is formed on the receiving surface 21 of the cylindrical portion 8, and is formed on the inner surface of the cylindrical portion 8. A stopper 24 is formed on the inner surface of the cylindrical portion 8 and engages with the locking edge 23. ing.

Therefore, the holder 5 has a locking portion 26 formed by a hole located on the flange 9, and the protrusion 16.
The locking part 27 by the hole located above and the divided body 8
A locking portion 28 formed by a hole located on the separation edge 11 of a
and locking portions 29, 30, 31 formed of protrusions located on the other divided body 8b and elastically engaging with the locking portions 26, 27, 28, respectively. Further, separation edges 11, 1 of the divided bodies 8a, 8b
A concave spring hook 32 in which one end of the spring 7 is held when the springs 2 are connected, and a groove 33 into which the spring 7 is fitted are formed.

In such a configuration, during assembly, the separation edges 11 and 12 of the divided bodies 8a and 8b are kept separated from each other, and the locking body 6 and the key guide plate 20 are assembled into the inner surfaces of the divided bodies 8a and 8b. Next, the locking portions 26 and 29, the locking portions 27 and 30, and the locking portions 28 and 31 are elastically engaged to connect the separation edges 11 and 12, and lock. The spring 7 wound while engaging the body 6 at one end is bent in a direction in which the winding diameter is reduced, and the other end of the spring 7 is engaged with the spring hook 32 of the holder 5.

To attach the holder 5 to the panel 1, first place the holder 5 facing the back of the panel 1, and then press the locking piece 1.
4 and 15 are brought into contact with the back surface of the panel 1 and elastically bent, and the projecting pieces 16 and 17 of the flange 9 are pressed against the panel 1.
Insert into notch holes 3 and 4 of. Then, holder 5
The locking pieces 14 and 15 are elastically engaged with the notch holes 3 and 4 by turning 90 degrees. As a result, the holder 5 is prevented from rotating, and the panel 1 is held between the flange 9 and the expanded surface 13, and movement in the axial direction is also fixed.

To open the lock, turn the key 36 inserted through the insertion part 35 of the lock body 6 from the key hole 34 of the key guide plate 20, and then release the hook part 19 from the locking body 37 provided on the vehicle body side as shown in FIG. Remove, panel 1
Rotate in the opening direction to open the fuel supply port. When the torque on the key 36 is removed, the locking body 6 returns to the locked position determined by the stoppers 24 and 25 by the force of the spring 7. In this state, panel 1
When pushed in the closing direction, the locking body 37 interferes with the hook portion 19 and retracts elastically, then returns inward and engages with the hook portion 19.

As described above, since the holder 5 that holds the locking body 6 is formed from one piece, the number of parts is extremely small. In addition, the separation edge 1 of the cylindrical portion 8
1 and 12 are separable, but by engaging the locking parts 26 and 27 with the locking parts 29 and 30, movement in the opening direction is prevented, and by the engagement of the locking parts 28 and 31, the movement in the axial direction is prevented. movement is fixed. Furthermore, when the holder 5 is inserted into the panel 1, the cylindrical portion 8 is bound by the spring 7, and is tightened by the spring 7, which is deflected in the direction of diameter reduction during the unlocking operation, so that the separation edge 11, There is no fear that 12 will leave. Locking piece 14, 1 of holder 5
5 is fitted into the notch holes 3 and 4.
Shows the effect of increasing the bonding strength of 1 and 12.

Furthermore, the holder 5 can be attached to the panel 1 by fitting the projecting pieces 16 and 17 into the notch holes 3 and 4.
This can be done very easily without using tools by turning the locking pieces 14 and 15 into the notch holes 3 and 4. These paired notch holes 3,
4, the locking pieces 14, 15, and the protruding pieces 16, 17 are different in size, so the mounting direction can be easily determined.

Since this invention is constructed as described above, the panel can be held between the expanded surface of the holder and the protrusion formed at the end of the holder, and the axial movement of the holder can be firmly fixed. The locking piece of the holder can be engaged with the notch hole of the panel to firmly fix the rotational movement of the holder. Since the holder is made of aluminum, the orientation of the holder can be kept constant, and the installation of the holder to the panel can be done simply by inserting the holder into the mounting hole and turning it. Furthermore, by integrally forming the expanding surface, the locking piece, and the protruding piece on the holder for fixing the holder, it is possible to reduce the number of parts and the number of manufacturing steps.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a front view, Figure 2 is a longitudinal side view, Figure 3 is a rear view, Figure 4 is an exploded perspective view, Figure 5 is a front view showing the mounting holes in the panel, and Figure 6 shows the unfolded state of the holder. A side view as seen from the outer circumferential surface, and FIG. 7 is a side view of the unfolded state of the holder as seen from the inside surface with the flange as a cross section.
8 is a cross-sectional view taken along line A-A in FIG. 7, FIG. 9 is a rear view of the holder in the unfolded state, FIG. 10 is a front view taken along arrow B in FIG. 7, and FIG. 9
It is a sectional view taken along line CC in the figure. DESCRIPTION OF SYMBOLS 1... Panel, 2... Mounting hole, 3-4... Notch hole, 5... Holder, 6... Locking body, 13... Expanding surface, 14-15... Locking piece, 16-17... ...Protrusion.

Claims (1)

[Scope of utility model registration request] A holder is provided to rotatably hold the lock body into which the key is inserted, and a circular mounting hole into which the holder is inserted and a plurality of notches of different widths cut outward from the opening edge of this mounting hole. A panel having a hole formed therein is provided, and an enlarged surface that joins to the inner surface of the panel is formed on a part of the outer periphery of the holder, and the notch is formed to have a width that matches the width of each of the notch holes. A plurality of locking pieces that simultaneously engage with the holes are formed to be elastically flexible in the axial direction of the holder, and the locking pieces are large enough to pass through the notch holes on the outer periphery of the end of the holder. A key lock device characterized in that a plurality of protrusions are formed extending in different radial directions and sandwiching the panel between the protrusion and the expansion surface.