KR0165639B1 - Press-on and split-off type fastener - Google Patents

Abstract

The object of the present invention is to provide a press-and-peel-type fastener which can be adhered to a member to be adhered with an adhesive such as a hot-melt adhesive without affecting the engagement of the engagement head portions.

As means for solving this problem, an engagement projection 4 having an engagement head portion 6 formed on the upper end of the legs 5A and 5B is mounted on the surface side of the flat base 2 in the longitudinal direction and in the transverse direction And two fastener bodies made of plastic each having a hole 3 formed in a portion of the base 2 on which the engagement protrusions 4 are formed and the surface on which the engagement protrusions 4 are formed The lower ends of the engaging head portions 6 are engaged with each other by opposing each of the bases 2 so as to face each other and press-fitting the engaging head portion 6 on one side into the engaging head portion on the other side 9B and 9C and the engaging projection 10 are formed in the base 2 and the respective holes 3 are closed so that the engaging concave portions 9A 9B, and 9C, projections 15A, 15B, and 15C that engage with the engaging projections 10, and engaging portions 16, (14), and connects the base (2) and the lid (14) with the hinge (13).

Description

Crimping and peeling type fastener

FIG. 1 is a plan view of a fastener body used in a press-and-peelable fastener according to an embodiment of the present invention. FIG.

Figure 2 is a front view of the fastener body shown in Figure 1;

Figure 3 is a left side view of the fastener body shown in Figure 1;

4 is a right side view of the fastener body shown in Fig.

5 is a bottom view of the fastener body shown in Fig.

6 is a cross-sectional view taken along line A-A of FIG. 5;

7 is a cross-sectional view taken along the line B-B in FIG. 1;

FIG. 8 is an enlarged plan view of the base in the ranges C and D shown in FIG. 1;

9 is a sectional view taken along the line E-E of FIG. 8;

10 is a front view of a state in which the cover is folded and fixed to the base;

11 is a bottom view of the folded lid and secured to the base;

12 is a cross-sectional view taken along line F-F of FIG. 11;

13 (a) and 13 (b) are explanatory views showing a use example of a press-and-peelable type fastener.

14 is a perspective view showing an example of a fastener body constituting a conventional press-and-peeling type fastener;

15 (a) is an enlarged perspective view of the engaging projection, Fig. 15 (b) is an enlarged front view of the engaging projection, and Fig. 15 (c) is an enlarged side view of the engaging projection.

FIG. 16 is a rear view of the base showing the positional relationship of the legs. FIG.

FIG. 17 is an explanatory view showing a formation interval of the engaging projections. FIG.

18 is an explanatory view showing the state of each engaging projection at the time of pressing.

FIG. 19 is an explanatory view showing a crimped state of the press-and-peelable fastener. FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

F: Press-and-peel type fastener 1, 1A:

2: Base 3: Hole

4: engaging projection 5A, 5B: leg

6: engagement head 7: projection

8: concave portions 9A, 9B, 9C:

10: Hook 13: Hinge

14: lid 15A, 15B, 15C:

16: engaging portion 16a: hole

[Technical Field]

The present invention relates to a press-and-peel-type fastener in which a fastener body is formed of plastic and engaging head portions of engaging projections formed on the fastener body are engaged with each other.

[0003]

In recent years, press-peelable fasteners which are formed by plastic pressing and peeling free are widely used in many places.

FIG. 13 (a) and (b) are explanatory diagrams showing an example of use of the above-described press-and-peeling type fastener.

13 shows a remote control device for a built-in device of an automobile and F shows a press-and-peelable type fastener F. The press-and-peelable type fastener F has a remote control device R To be detachable.

The pressing and peeling type fastener F is composed of two fastener elements 1 and one side of the fastener element 1 is bonded to the instrument panel P with an eccentric adhesive tape and the other fastener element 1 Is adhered to the remote control device R with a double-sided adhesive.

Therefore, for example, when the user desires to listen to music by operating the CD player, the remote control device R can be detached from the instrument panel P. Therefore, the CD player can be operated using the remote controller R to listen to music.

When the remote control device R is not used, the other fastener body 1 is pressed to one side of the fastener body 1, whereby the remote control device R is attached to the instrument panel P as shown in Fig. Can be fixed.

In addition, for example, in the automobile manufacturing sector, it is often used as a joining member for interior parts, a joining member for floor carpets, or a joining member for preventing float of glass.

FIG. 14 is a perspective view showing an example of a fastener body constituting the conventional press-and-peelable fastener, FIG. 15 (a), (b) and (c) are enlarged perspective views of the fastening protrusions, And FIG. 18 is an explanatory view showing an enlarged side view of the engaging projection; FIG. 16 is a rear view of the base showing the positional relation of the legs; 19 is an explanatory view showing a pressed state of the press-and-peelable fastener.

The fastener body 1 shown in these drawings is integrally formed by injection molding of a plastic using a mold having two sides divided into two parts. The fastener body is composed of a flat base 2 and engaging projections 18 arranged longitudinally and laterally on the surface side of the base 2. [ (4).

The holes formed in the base 2 shown by reference numeral 3 are inevitably caused by the mold when the base 2 and the engaging protrusion 4 are integrally molded and are substantially the same as the engaging head 6 Size.

The engaging projection 4 includes two legs 5A and 5B projecting from the base 2 and an engaging head 6 having a diameter portion at the upper ends of the legs 5A and 5B .

Further, the shape of the engaging head 6 may be any shape such as a circular or polygonal plane shape, a dome-like shape or a flat hemisphere shape on the side surface.

As shown in FIG. 17, the distance between adjacent engaging projections 4 is set to be a "ten" shape formed by the engaging head 6 of the two engaging projections 4 in the row and row, When the engaging head 6 of one fastener body 1 having the engaging projections 4 downward is deformed and the downward engaging head 6 is inserted upwardly into four For example, if the diameter of the engaging head 6 is D, the center distance between the engaging head 6 of the row and column is S, and the diagonal distance is T, DS2D And is arranged and arranged so as to be DT2D.

Next, the pressing and peeling of the fastener elements will be described.

First, the two fastener elements 1 are opposed to each other such that the surfaces on which the engaging projections 4 are formed are opposed to each other. The fastener element 1 on one side is pushed against the fastener element 1 on the other side, 6 are pushed into the intersection space formed by the engaging head 6 on the other side as described above so as to interfere with the engaging head 6 on one side and the engaging head 6 on the other side, 18, the upper and lower engaging head portions 6 collide with each other.

In this state, when the fastener body 1 on one side is pressed more strongly to the fastener body 1 on the other side, the upper and lower engaging projections 4 are deformed so that the engaging head portion 6 on one side is deformed, (6). As shown in FIG. 19, the lower ends of the engaging head portions 6 are engaged with each other to be in a press contact state.

When a force for releasing the engagement between the lower surfaces of the engaging head portion 6 pressed in this way is applied to one fastener body 1, one fastener body 1 is peeled off from the other fastener body 1.

[PROBLEMS TO BE SOLVED BY THE INVENTION]

The fastener body 1 constituting the conventional press-and-peelable type fastener F can be adhered to the instrument panel P and the remote control device R to be attached with double-sided adhesive tape, The adhesive is adhered from the hole 3 to the space between the legs 5A and 5B and below the engaging head 6 when the adhesive is adhered to the member to be attached using an adhesive such as hotmelt adhesive So that the engaging force of the engaging head portions 6 can not be obtained and there is a fear that the engaging head portions 6 can not function as a fastener.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a press-and-peelable type fastener which can be adhered to a member to be attached even with an adhesive such as a hot melt adhesive without affecting the engagement of the engagement head portions .

[MEANS FOR SOLVING THE PROBLEMS]

According to the present invention, an elastic engaging projection having an engaging head formed on an upper end of a leg is formed by standing on the surface side of a flat base in a longitudinal direction and in a transverse direction, and at a portion of the base on which the engaging projection is formed The base is made to face each other so that the surfaces provided with the engaging projections are opposed to each other. When the engaging head of one side is press-fitted into the engaging head of the other side, The fastener according to Claim 1, wherein each of the holes is formed on the back side of the base, and the lid is attached to the back side of the base, or one side of the complementary engaging portion is formed on the back side of the base And a lid which covers each hole at the back side of the base and has the other side of the complementary engaging portion, And the cover is fixed to the base by engaging one side of the bait engaging portion with the other side of the complementary engaging portion.

When the lid is fixed to the base with the complementary engaging portion, it is preferable that the lid is integrally connected to the base through the hinge portion.

BRIEF DESCRIPTION OF THE DRAWINGS Fig.

Best Mode for Carrying Out the Invention Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Fig. 1 is a plan view of a fastener body used in a press-and-peelable fastener according to an embodiment of the present invention. Fig. 2 is a front view of the fastener body shown in Fig. 1. Fig. 3 is a left side view of the fastener body shown in Fig. Fig. 3 is a left side view of the fastener body shown in Fig. 1, Fig. 4 is a right side view of the fastener body shown in Fig. 1, Fig. 5 is a bottom view of the fastener body shown in Fig. 8 is an enlarged plan view of the base in the ranges C and D shown in Fig. 1, Fig. 9 is a sectional view taken along the line EE in Fig. 8, Fig. 10 FIG. 11 is a bottom view of a state in which the cover is superimposed and fixed to the base, FIG. 12 is a sectional view taken along the FF line of FIG. 11, and FIGS. 13 to 19 are the same or corresponding parts And the description thereof will be omitted.

In these drawings, the fastener body shown at 1A is integrally formed by injection molding of a plastic using a mold having two divided sides. The fastener body has a flat base 2 like the fastener body 1, A locking protrusion 10 formed on one side of the base 2 and a locking protrusion 10 formed on one side of the base 2 facing the locking protrusion 10, A lid 14 formed continuously to the hinge 13 and an engaging portion 16 engaging with a latching protrusion 14 formed on the lid 10. [

The projections 7 are formed in the shape of a truncated cone and are formed in a ratio of 50% instead of the engaging projections 4 so that the other engaging head 6 is elastically tied to the engaging head 6 And is formed to have the same height as the legs 5A and 5B protruding from the base 2.

The bottom surface of the base 2 is provided with a concave portion 8 for accommodating the lid 14 and a concave portion 8 located at a position corresponding to three sides except for the side where the engaging projection 10 is formed in the concave portion 8 The fitting concave portions 9A, 9B and 9C are formed.

Holes 11 and 12 are formed around the concave portion 8 of the base 2.

Protrusions 15A, 15B and 15C fitted to the fitting recesses 9A, 9B and 9C are formed on the surface of the lid 14 corresponding to the back surface of the base 2, respectively.

In addition, a hole 16a is formed in the engaging portion 16, which is in the shape of an L-shaped side surface, so that the engaging projection 10 can protrude therefrom.

Next, the assembly and attachment of the fastener body will be described.

The lid 14 is folded toward the back side of the base 2 with the hinge portion 13 as the center and inserted into the concave portion 8 and the concave portions 9A, 9B, 15B and 15C are fitted into the fitting recesses 9A, 9B and 9C, the projections 15A, 15B and 15C are fitted.

Assembly of the fastener body 1A is completed by engaging the engaging projection 10 with the engaging projection 16 by engaging the engaging projection 10 with the hole 16a.

Since the projections 15A, 15B and 15C are fitted to the fitting concave portions 9A, 9B and 9C when the fastener body 1A is assembled in this way, the lid 14 can be fixed to the base 2. [

At this time, the lid 14 is housed in the recess 8 so that the back of the base 2 and the back of the lid 14 are flush with each other.

When the fastener body 1A is attached to the lid 14 of the assembled fastener body 1A and an adhesive such as hot melt adhesive is applied and the fastener body 1A is adhered to the member to be attached, since the hole 3 is covered with the lid 14, (3) from entering

Therefore, it does not affect the engagement of the engagement head portions 6, and the fastener body 1A can be firmly adhered to the adhesive agent with the adhesive.

Next, the pressing and peeling of the fastener elements will be described.

The two fastener elements 1A are opposed to each other such that the surfaces provided with the engaging projections 4 and the protrusions 7 are opposed to each other and the fastener element 1A on one side is pushed into the fastener element 1A on the other side, The gap between the engaging head portions 6 of both fastener elements 1A is widened so that the space between the engaging head portions 6 of the fastener elements 1A on the other side is set to be larger than that of the fastener elements 1A on one side. The engaging head 6 passes through the engaging head 6 of the fastener body 1A on one side against the projection 7 of the fastener body 1A on the other side, So that the lower surfaces thereof are engaged with each other.

When a force for releasing the engagement between the lower surfaces of the press-fit engagement head 6 is applied to one fastener body 1A, one fastener body 1A is peeled off from the other fastener body 1A.

Here, the engaging head portions 6 of the press-and-peelable fastener F constituted by the two fastener elements 1A formed by arranging the engaging projections 4 and the projections 7 at a ratio of 50% And the detaching force for releasing the engagement of the engaging head portions 6 with each other is compared with the insertion force and detachment force of the press-and-peelable fastener body (F) composed of the two fastener elements (1) The insertion force of the compression and peeling type fastener F composed of the two fastener elements 1A is about 30% of that of the compression and peeling type fastener F composed of the two fastener elements 1, The detachment force of the press-and-peelable fastener F constituted by the two fastener elements 1 is about 80% of that of the press-and-peelable fastener F composed of the two fastener elements 1.

Therefore, by arranging the engagement protrusions 4 and the protrusions 7 at a ratio of 50%, the insertion force can be greatly reduced without significantly reducing the detachment force, so that the press-and-peelable type fastener F ) Can be obtained.

By changing the ratio of the projections 7, the insertion force and the removal force can be easily changed.

In the above-described embodiment, the engaging projections 4 and the projections 7 are arranged at a ratio of 50%. In this case, the engaging projections 4 are 100%, the projections 7 are 0% It is preferable that the engaging projections 4 are in the range of 100% to 50% and the projections 7 are in the range of 0% to 50%, though the projections 4 may be 75% and the projections 7 may be 25%.

Further, the shape of the projection 7 is a conical shape, but it may be a hemispherical shape.

The complementary engaging head portion for fixing the lid 14 to the base 2 is formed by the fitting recess portions 9A, 9B and 9C and the projections 15A, 15B and 15C fitted thereto, 10 and the engaging portion 16 that engages with the engaging projection 10 may be used as long as the engaging portion 16 is a complementary engaging portion capable of fixing the lid 14 to the base 2. [

Although the base 2 and the lid 4 are connected to each other by a hinge 13 to form a single component, the base 2 and the lid 14 may be separated from each other by a hinge 13, Of course, two parts are okay.

When the base 2 and the lid 14 are formed as two parts, the cover 14 may be attached to the back side of the base 2 with a double-sided adhesive without forming a complementary engaging portion.

When the holes 11 and 12 are formed in the base 2 around the concave portion 8 but the holes 11 and 12 are not formed in this portion and the portion is adhered to the member to be attached with an adhesive, The fastener body can be fixed to the attached member.

As described above, according to the present invention, when the lid is attached to the base 2, the hole of the base is covered with the lid, so that when the adhesive is adhered to the member to be attached, the adhesive does not enter the hole.

Therefore, the fastener body can be bonded to the adherend with an adhesive without affecting the engagement of the engagement head portions.

In addition, since the base and the cover are connected by the hinge portion, they are made into one component, and can be manufactured at a low cost.

Claims (3)

And an elastic engaging projection having an engaging head formed on an upper end of the leg, the engaging projection being formed on the surface side of the flat base so as to be longitudinally and laterally arrayed, Wherein the engaging projections are formed so as to face each other so that the bases of the engaging projections are opposed to each other and the engaging head of the one side is press-fitted between the engaging head portions of the other side, Wherein the cover is provided on the back side of the base so as to form a lid for closing the holes on the back side of the base, and the lid is attached to the back side of the base. Fastener. And an elastic engaging projection having an engaging head formed on an upper end of the leg, the engaging projection being formed on the surface side of the flat base so as to be longitudinally and laterally arrayed, Wherein the engaging projections are formed so as to face each other so that the bases of the engaging projections are opposed to each other and the engaging head of the one side is press-fitted between the engaging head portions of the other side, A press-releasing fastener according to any one of claims 1 to 3, wherein one side of the complementary engaging portion is formed on the back side of the base, and each of the holes is covered on the back side of the base, A lid having the other side of the fitting portion is formed, and the complementary engagement with one side of the complementary engaging portion By engaging the other end portion dancing compression release type fastener, characterized in that for fixing the cover to the base. The fastener according to claim 2, wherein the cover is formed integrally with the base through a hinge portion.