JPS6018648Y2 - Attachment devices such as handles - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for attaching handles, etc., which is effective for attaching handles to furniture.

As a mounting device for attaching handles etc. with one touch,
A cylindrical latch having a tapered inner end and a retaining protrusion extending along the circumferential direction on the outer peripheral surface, a striker that can fit into the latch, and the striker. When the striker is inserted into the latch, the head of the screw, which is cut out from the screw for attaching to the mounting part and protrudes from the inner end of the striker, first engages with the outside of the concave inner end of the latch. A mounting device for handles, etc., was developed (for example, see Utility Model Application No. 51-48566).
.

The present invention aims to improve such a mounting device so that even when it is used for mounting a button-shaped handle, the handle can be firmly mounted without accidentally rotating.

Embodiments of the present invention will be described below based on the attached illustrative drawings.

Reference numeral 1 denotes a cylindrical striker, which is made of synthetic resin such as polycarbonate, and has a tapered inner end 2, a screw through hole 5 penetrating from the inner end 3 to the outer end 4, and a striker provided at the outer periphery of the outer end. a detent protrusion with a substantially triangular cross-section that protrudes along the axial direction on the outer peripheral surface of the body 7 between the tapered inner end 2 and the expanded diameter part 6; 8.

Reference numeral 9 denotes a piece for attaching the striker 1 to a mounting member, and a head portion having a diameter not larger than the outer diameter of the body portion 7 and sufficiently larger than the outer diameter of the tip of the tapered inner end portion 2. It has 10.

Reference numeral 11 denotes a latch made of a synthetic resin such as polyacetal, which is provided with a tapered inner end 12 and is held from a cylindrical body having a length slightly shorter than the overall length of the striker 1. On the outer circumferential surface between the outer end 13 and a suitable intermediate position of the body 14, a retaining protrusion 15 is provided which has a saw blade shape in which the inner end 12 side is gently inclined in the vertical cross section and extends along the circumferential direction. are provided in multiple stages to protrude in the axial direction, and the body portion 14
At the outer peripheral edge of the outer end, there is a swollen diameter portion 16 having a diameter slightly larger than that of the retaining protrusion 15 and having a vertical cross-sectional shape substantially the same as that of the protrusion 15.
is provided flush with the outer end 13, and a notch 18 extending in the axial direction from the inner end 17 is provided in a region extending between the body portion 14a where the retaining protrusion 15 is not provided and the tapered inner end portion 12. are provided at multiple locations in the circumferential direction.

Reference numeral 19 denotes a guide flange that protrudes along the entire circumference along the circumferential direction at the outer end position of the body portion 14a, and has a sawtooth cross-sectional shape lower than and similar to the retaining protrusion 15.

Reference numeral 20 denotes an outwardly expanding tapered surface provided on the inner peripheral edge of the outer end of the latch 11, and this outwardly expanding tapered surface portion 2
The vertical cross-sectional shape and size of the central hole 21 of the latch 11 including the center hole 21 are substantially the same as the vertical cross-sectional shape and size of the striker 1 excluding the anti-rotation protrusion 8.

Although the enlarged diameter portion 16 is provided continuously over the entire circumference, each of the retaining protrusions 15 is divided into two in the circumferential direction by two cutout portions 22 in the diametrical direction.

Reference numeral 23 denotes a gap, which includes an insertion portion 24 having a slightly larger diameter than the outer diameter of the guide flange 19 and a head 25 in the shape of a spherical section. A recess 26 is formed with a size that allows the inner end 12 and the like to fit therein.

Next, to explain how to attach the handle using the above-mentioned attachment device, as shown in FIG. A hole 28 is drilled, and the latch 11 is inserted into this through hole 28 from the surface 29 side of the mounting plate 27.
is press-fitted from its tapered inner end 12.

In this case, as shown in the figure, the tip shaft portion 30 has a thickness that just fits into the central hole 21 of the latch 11, and the outer end 1 of the latch
3 and a screwdriver-like jig 32 equipped with a flange 31 having a larger diameter than the outer end 13,
The latch 11 is attached to the flange 31 on the tip shaft portion 30 of the jig 32.
With the latch 11 and the outer end 13 in contact with each other, press fit the latch 11 into the through hole 28 with the jig 32 until the outer circumference of the flange 31 contacts the surface 29 of the mounting plate. By adopting the method, the outer end 1 of the latch 11
The latch 11 can be accurately press-fitted to a proper depth so that the latch 3 and the mounting plate surface 29 are flush with each other.

When the latch 11 is press-fitted into the through-hole 28 in this way, the circumferentially aligned pointed ends of the respective retaining protrusions 15 of the latch 11 bite into the inner circumferential surface of the through-hole 28 as shown in the figure. This makes the resistance to pull out of the latch 11 with respect to the latch 27 extremely large.

- The outer end swollen portion 16 serves to prevent the latch 11 from being press-fitted into the through hole 28 beyond the normal depth.

On the other hand, as shown in FIG. 5, the striker 1 is inserted into the screw through hole 5 at the center of the flat surface 34 at the mounting end of the handle 33 so that the outer end 4 and the flat surface 34 are in contact with each other. It is attached by screwing the screw 9 into the screw hole 35 provided in the handle 33.

The flat surface 34 is a through hole 28 provided in the mounting plate 27.
It has enough space to cover the area.

Next, as shown in Fig. 6, hold the handle 33 to open the striker.
1 is press-fitted into the center hole 21 of the latch 11, and the tapered inner end 12 of the latch 11 is pushed out against elasticity between each notch 18 by the screw head 10 protruding from the tip of the striker. , the screw head 10 is attached to the latch inner end 17
protrude upwards.

At this time, the flat surface 34 of the handle 33 just contacts the surface 29 of the mounting plate 27 and the outer end 13 of the latch 11, and the expanded diameter portion 6 of the striker 1 fits into the outwardly expanding tapered surface portion 20 of the latch 11. and are in close contact with each other around the entire circumference.

On the other hand, the expanded tapered inner end 12 elastically returns to the inside of the screw head 10, and the inner surface of the screw head 10 and the latch inner end 17 come into contact, causing the latch 11
This prevents the striker 1 from being pulled out.

Therefore, the handle 33 has an engagement between the screw head 10 and the inner end 17 of the latch, and a protrusion 15 for preventing the latch from coming off and the through hole 28 of the mounting plate.
It is fixed to the mounting plate 27 by biting engagement with the inner surface of.

When the striker 1 is press-fitted, the latch 11 receives a force in the same direction as when it is pushed into the through hole 28, but if the latch 11 moves inward even slightly due to this force, the screw head 11 and the tip Although engagement with the tapered inner end portion 12 becomes impossible, such a disadvantage does not occur because the expanded diameter portion 16 reliably prevents the latch 11 from moving inward.

The outwardly expanding tapered surface 20 of the latch 11 and the striker 1
The close fit with the expanded diameter portion 6 increases the stability of the striker 1 when the latch 11 and the striker 1 are engaged with each other via the screw head 10, and prevents rattling between the two. is also helpful.

After installing the handle, insert the cap 23 into the through hole 28 from the back side.
and fit together.

This cap 23 can be omitted if unnecessary.

As in the above embodiment, the mounting device of the present invention has a striker
By attaching the striker to a mounting part such as a handle with screws in advance and press-fitting the latch into the hole of the mounting plate in advance, the mounting part can be attached simply by pressing the striker into the latch. However, especially according to the present invention, the following effects can be obtained.

That is, the anti-rotation protrusion 8 of the striker 1 is connected to the latch 1.
As the striker 1 is press-fitted into the latch 1, it bites into the inner surface of the latch center hole 21 (see Fig. 7), so that the striker 1
1 is prevented from rotating around its axis.

Therefore, the button-shaped handle 33 is of a type in which the mounting member can be attached at one location, and the handle 33 is shaped so that it has a finger-rest recess 36 on the lower side as shown in the figure, so that it would be difficult to rotate on its own axis. By simply determining the orientation of the handle 33 when press-fitting the striker, there will be no inconvenience such as the attached handle 33 unexpectedly turning and being oriented incorrectly.

Furthermore, the retaining protrusion 15 provided on the latch 11
As a result of being separated in the circumferential direction by 2, the latch 11 is unable to rotate around its axis when it is bitten into the inner surface of the through hole 28 (see Fig. 7), so that the attached handle 33 Rotation together with the striker 1 and the latch 11 is also reliably prevented.

Furthermore, press-fitting into the through hole 28 is relatively easier than when the retaining protrusion 15 is continuous in the circumferential direction.

Note that the anti-rotation protrusion 8 may be provided on the inner peripheral surface side of the latch 11.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing one embodiment of the device of the present invention;
The figure is a back view of the striker, Figure 3 is a back view of the latch,
Figure 4 is a partially cutaway side view showing the state of latch installation;
The figure is a partially cutaway side view showing the striker attached state, FIG. 6 is a partially cutaway side view showing the handle attached state, and FIG. 7 is a sectional view taken along the line A--A. DESCRIPTION OF SYMBOLS 1...Striker 12...Tapered inner end part, 6...Bulging diameter part, 8...Protrusion for preventing rotation, 9... ... Screw, 11 ... Latch, 12 ... Tapered inner end, 15 ...
... Removal prevention protrusion, 16... Expanded diameter part, 18...
...Cut, 19...Guide flange, 20
...... External tapered surface part, 22...
Resection part, 23... Cap, 27...
Mounting plate, 28...Through hole, 32...
Jig, 33...handle, 34...flat surface.

Claims (1)

[Scope of utility model registration request] A cylindrical latch having a tapered inner end and a retaining protrusion extending along the circumferential direction on the outer peripheral surface, a striker that can fit into the latch, and the striker. The head of the screw protrudes from the inner end of the striker and engages with the outside of the tapered inner end of the latch when the striker is inserted into the latch. In the attachment device for a handle or the like, a protrusion is provided on at least one of the outer circumferential surface of the striker and the inner circumferential surface of the latch, which bites into the other surface when the striker is press-fitted into the latch. A mounting device for a handle or the like, characterized in that the latch is provided along the axial direction, and the latch retaining protrusion is not continuous in an annular circumferential direction but is separated at at least one point.