JPH0446565Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a push-type latching device used for hanging belts, pants, etc.

(Prior Art) In recent years, so-called push-type latching fittings have been used as fittings for hanging belts and pants, in which a receiving fitting and an insert fitting are attached to both ends of the belt, and the two fittings can be connected or disconnected with a single touch. Widely used.

FIG. 4 shows an example of a conventional push-type latching metal fitting, which is composed of a receiving metal fitting C and an insertion metal fitting D.

Specifically, the receiving metal fitting C is composed of a guide body 5, a leaf spring 6, and a retaining body 7, and the guide body 5 is formed by bending both sides of a rectangular steel plate upward.
An engagement hole 5b is formed in the bent support piece 5a, and a stopper 5c made of a cutout piece is horizontally protruded. Further, the leaf spring 6 is formed by bending a steel band into a substantially U-shape, and a lower piece thereof is latched to a latching piece 5d protruding from the guide body 5. Furthermore, the retaining body 7 is
It is formed by bending the front edge of a rectangular steel plate downward by 90 degrees or more to form the retaining piece 7a, and protruding horizontally from the approximate center of both sides of the steel plate with a projecting piece 7b.

The stop body 7 is swingably attached between the support pieces 5a of the guide body 5 by inserting the projecting piece 7b into the engagement hole 5b of the support piece 5a. As a result, the rear end side is pushed upward, and the back surface of the front end side comes into contact with the stopper 5c, so that it is held in a substantially horizontal state between the support pieces 5a.

On the other hand, the insertion fitting D has a hook piece 8a that can be freely engaged with the stop piece 7a of the stop body 7 at the front end of the rectangular steel plate.
It is formed by protruding upward.

Therefore, when connecting the receiving metal fitting C and the insertion metal fitting D, the tip of the insertion metal fitting D is connected to the guide body 5 of the receiving metal fitting C.
and the retaining body 7. Then, the front end of the retainer 7 is pushed upward by the hook 8a of the insert D against the elastic force of the leaf spring 6, and when the tip of the receiver C is inserted to a predetermined position, the leaf spring 6 The elastic force returns the catch 7 to the horizontal position, and the hook piece 8a is latched onto the catch piece 7a of the catch 7 (see FIG. 5). At this time, the tip of the metal insert D is inserted between the curved portion 6a of the leaf spring 6 and the guide body 5.

In addition, when disassociating the connected metal fitting C and the insertion metal fitting D, while pushing down the rear end side of the retaining body 7 of the metal reception fitting C, the insertion metal fitting D is moved to the right (the fifth
Pull it horizontally (towards the right in the figure). Then, the hook piece 8a separates from the retaining piece 7a, and the insertion fitting D and the receiving metal fitting C are separated.

(Problem to be solved by the invention) By the way, the leaf spring 6 used in the above-mentioned latching metal fitting is vertically symmetrical, and both ends thereof are in line contact with the guide body 5 and the retaining body 7, and the leaf spring 6 is in a downward direction. Since only one piece of the guide member 5 is engaged with the guide member 5, the curved portion 6a may be displaced in the vertical direction for some reason. As a result, the curved portion 6 of the leaf spring 6
is deflected downward and in contact with the guide body 5,
When inserting the metal fitting D into the gap between the guide body 5 and the retaining body 7 of the receiving metal fitting C, the tip of the metal fitting D rides on the curved part 6a of the leaf spring 6 as shown in FIG. There was a problem that the connection between the two could not be achieved properly.

The present invention has been devised to solve the above-mentioned problems, and its purpose is to provide a latching fitting that allows the connection between the receiving fitting and the insertion fitting to be performed well and smoothly at all times.

(Means for Solving the Problems) In order to achieve the above object, the latching metal fitting of the present invention is composed of a receiving metal fitting and an insertion metal fitting, and the receiving metal fitting is attached to a bottom plate and to both sides of the bottom plate. A guide consisting of support pieces that are connected in series and project upward, a step formed at the front end of the support piece and cut out at the bottom, and a hook piece that is integrally formed at the rear of the bottom plate and projects upward. Body; a top plate facing the bottom plate; a protruding piece that is connected to both sides of the top plate and projects downward and whose front lower end surface abuts the bottom plate; It consists of a retaining piece that is bent at an acute angle and is formed at approximately the same height as the supporting piece, and is swingably disposed between the supporting pieces by pivoting the protruding piece to the supporting piece of the guide body. with a retaining body; approximately U
It is interposed between the guide body and the restraint body so that the curved part faces one side of the restraint body and urges the rear end of the restraint body upward, and the curved part is always attached to the top plate. and a plate spring latched to the latching piece in a state in which at least one lower end thereof is bent so as to be in close contact with the bottom plate, and the insertion fitting is
a bottom plate that is inserted between the guide body and the retaining body and whose tip portion is located between the bottom plate of the guide body and the curved part of the leaf spring; A wedge-shaped hook piece that projects upward and can be freely engaged with the retaining piece; a support piece that is formed on both rear sides of the bottom plate and projects upward; and a stepped portion of the support piece of the guide body that is formed on the front end of the support piece. It is characterized by a stepped portion with a notch at the top that can be freely engaged with.

(Function) When connecting the receiving metal fitting and the insertion metal fitting, the bottom plate tip of the insertion metal fitting is inserted between the guide body and the retaining body of the receiving metal fitting. Then, the tip side of the stop body is pushed up against the elastic force of the leaf spring by the hook of the insert, and the inserts are successively inserted. At this time, since the retaining piece of the retaining body is bent at an acute angle and the hook piece of the insertion fitting is wedge-shaped, the tip side of the retaining body is easily pushed up by the hook piece, and the insertion fitting is It is smoothly and easily inserted between the guide body and the retaining body. In addition, since the curved part of the leaf spring is always in contact with the top plate of the retaining body, when the insert fitting is inserted between the guide body and the retaining body, the tip of the bottom plate of the insert fitting is in contact with the top plate of the retaining body. There is no need to climb up a bend.

When the insert is inserted to the specified position, the retainer is returned to the horizontal position by the elastic force of the leaf spring, and the hook of the insert is hooked to the retainer's retainer. .

Furthermore, since the retaining piece of the retaining body is formed at approximately the same height as the supporting piece of the guide body, and the hook piece of the insertion fitting is formed approximately at the same height as the supporting piece of the guide body, it is possible to Once the insertion fittings are connected, when the rear end of the retaining member is pushed a little and the retaining member is slightly swung, the engagement between the retaining piece and the hook piece will not easily disengage, and the connection between the two fittings will be maintained. It becomes even more certain.

Also, when connecting the receiver and the insert, the step of the lower notch formed in the support piece of the guide body engages with the step of the upper notch formed in the support piece of the insert.
Vertical wobbling of the insertion fitting is also prevented.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 is an exploded perspective view of a latching fitting according to an embodiment of the present invention, and the latching fitting is a receiving fitting A.
and an insertion fitting B.

The receiving fitting A is composed of a guide body 1, a retaining body 2, and a leaf spring 3.

Specifically, the guide body 1 is made of a steel plate and includes a bottom plate 1a and support pieces 1b that are connected to both sides of the bottom plate 1a and project upward. Further, a belt engaging window 1c is bored in the rear part of the bottom plate 1a, and a latching piece 1d for latching the leaf spring 3 is formed to protrude integrally with the bottom plate 1a.
Further, a through hole 1e is formed in the center of the support piece 1b, and a step part 1f with a cutout at the bottom is formed at the front end of the support piece 1b.

The stop body 2 is formed of a steel plate, and includes a top plate 2a facing the bottom plate 1a, and a protrusion that is connected to both sides of the top plate 2a and protrudes downward, and whose front lower end surface abuts the bottom plate 1a. It consists of a piece 2b and a retaining piece 2c that is connected to the front end of the top plate 2a, bent downward at an acute angle, and formed at approximately the same height as the support piece 1b. Further, a through hole 2d that matches the through hole 1e of the support piece 1b of the guide body 1 is formed in the protruding piece 2b.

The leaf spring 3 is formed by bending a steel band into a substantially U-shape, with the curved portion 3a facing the retaining piece 2c of the retaining body 2, and with the rear end side of the retaining body 2 pointing upward. It is interposed between the guide body 1 and the retaining body 2 in order to force it. Further, the leaf spring 3 has at least an end portion of the lower piece 3b bent so that the curved portion 3a is always in contact with the top plate 2a, and the bottom plate 1
It is latched to the latching piece 1d in a state in which it is in close contact with a.

The retaining body 2 is constructed by pivotally attaching the projecting piece 2b to the supporting piece 1b of the guide body 1.
The support piece 1b is swingably disposed between the supporting pieces 1b. In this embodiment, the retainer 2 is the through hole 1 of the support piece 1b.
It is swingably attached between the support piece 1b of the guide body 1 by inserting the eyelet fitting 5 into the through hole 2d of the protruding piece 2b. Further, the rear end side of the retaining body 2 is pushed upward by the leaf spring 3, and the rocking is regulated by the lower end surface of the front end side of the protruding piece 2b coming into contact with the bottom plate 1a, so that the retaining body 2 is held approximately horizontally. It is held between the support pieces 1b in this state.

On the other hand, the insertion fitting B is formed of a steel plate, and is formed on a bottom plate 4d inserted between the guide body 1 and the retaining body 2, and at a substantially central portion of the front end side of the bottom plate 4d, protruding upward, and holding a retaining member. Attachment piece 2c of body 2
a pair of wedge-shaped hook pieces 4a that can be freely engaged with the bottom plate 4d;
Support pieces 4 formed on both sides of the rear part and projecting upward.
Consists of e, etc. Further, a belt engagement window 4b is formed at the rear of the bottom plate 4d. Further, the front end of the support piece 4e is engaged with the stepped portion 1f of the support piece 1b of the guide body 1 to prevent the upward movement of the insert B and also to control the insertion depth of the insert B into the receiver A. A step portion 4c is formed with a notch at the upper side for regulating.

The length in the front-rear direction of the part of the insertion fitting B that is inserted into the receiving fitting A is determined by inserting the tip end of the bottom plate 4d between the guide body 1 and the retaining body 2, and making the difference between the step part 1f of the guide body 1 and the end side of the bottom plate 4d. When the step part 4c of the fitting B comes into contact with the bottom plate 4d, the tip of the bottom plate 4d touches the bottom plate 1 of the guide body 1.
a and the curved portion 3a of the leaf spring 3 (see FIG. 2). Also, hook piece 4a
The height of the support piece 1b of the guide body 1 is set to be approximately the same height.

Next, the function of the latching fitting will be explained.

Referring to FIG. 2, first, one end of the belt is fixed to the belt engaging window 1c of the receiving fitting A, and the other end of the belt is fixed to the belt engaging window 4b of the insert fitting B. Insert the tip of the bottom plate 4d of B into the gap between the guide body 1 and the retaining body 2 of the receiving fitting A.

Then, the tip side of the stop body 2 is pushed upward by the hook 4a of the insert B against the elastic force of the leaf spring 3, and the insert B is successively inserted. At this time, since the catch piece 2c of the catch member 2 is bent at an acute angle and the hook piece 4a of the insert B is wedge-shaped, the tip side of the catch member 2 is easily pushed upward, and the insert member The tip of B is smoothly and easily inserted between the guide body 1 and the retaining body 2. In addition, the curved portion 3a of the leaf spring 3 is always connected to the top plate 2.
a, so when inserting the insert B into the receiving bracket A, the tip of the bottom plate 4d of the insert B does not ride on the curved portion 3a, and the connection between the two is improved. I can do it.

When the tip of the insert B is inserted to a predetermined position, the stepped portion 1f of the support piece 1b of the guide body 1
and the stepped portion 4c of the support piece 4e of the insert B come into contact with each other to regulate the insertion depth, and the retaining body 2 is returned to the horizontal position by the elastic force of the leaf spring 3, and the insert B is The hook piece 4a is hooked onto the catch piece 2c of the catch member 2 (see FIG. 2).

Furthermore, the retaining piece 2c of the retaining body 2 is formed at approximately the same height as the supporting piece 1b of the guide body 1, and the hook piece 4a of the insertion fitting B is formed at approximately the same height as the supporting piece 1b of the guide body 1. Therefore, once both metal fittings A and B are connected, the rear end side of the catch body 2 is pushed a little and the catch body 2
When the retaining piece 2c and the hook piece 4a are slightly swung, the engagement between the retaining piece 2c and the hook piece 4a does not easily come off, and both metal fittings A,
The connection of B becomes even more reliable.

Also, when connecting the insert B and the bracket A, the step 1 of the lower notch formed in the support piece 1b of the bracket A is
f engages with the stepped portion 4c of the upper notch formed in the support piece 4e of the metal insert B, so that the metal insert B is also prevented from wobbling.

On the other hand, when disassociating the connected metal fitting A and the insertion metal fitting B, as shown in FIG.
While pressing down on the rear end side, pull the insertion fitting B horizontally to the right (to the right in Fig. 3). Then, the hook piece 4a separates from the retaining piece 2c, and the insertion metal fitting B is smoothly separated from the receiving metal fitting A.

In the above embodiment, the stop body 2 is swingably attached to the guide body 1 using the eyelet fitting 5, but the mounting structure is not limited to that of the above embodiment. .

In the above embodiment, the hook piece 4a is formed by bending the front end side substantially central part of the bottom plate 4d upward. The hook piece 4a may be formed by bending it upward.

In the above embodiment, the receiving metal fitting A and the insertion metal fitting B are
Although these are formed by pressing a steel plate, it goes without saying that they may be formed by casting or the like.

(Effect of the invention) As mentioned above, the latching fitting of the present invention has a structure in which the curved part of the leaf spring is always in contact with the top plate of the retaining body, so the tip side of the insertion fitting is connected to the guide body and the retaining body. There is no possibility that the tip portion rides on the curved portion of the leaf spring when inserted between the two, and the connection between the receiving metal fitting and the insertion metal fitting can always be performed well and smoothly.

In addition, the retaining piece of the retaining body is bent at an acute angle,
In addition, since the hook of the insert is wedge-shaped, when the insert is inserted into the receiver, the tip end of the stopper body is easily pushed upward by the wedge-shaped hook.
As a result, the tip of the insertion fitting is smoothly and easily inserted between the guide body and the retaining body of the receiving fitting.

Furthermore, since the retaining piece of the retaining body is formed at approximately the same height as the supporting piece of the guide body, and the hook piece of the insertion fitting is formed approximately at the same height as the supporting piece of the guide body, the retaining piece and the supporting piece of the guide body are formed at approximately the same height. It will be latched completely opposite the hook piece. As a result, when the receiving bracket and the insertion bracket are connected at one end, the engagement between the retaining piece and the hook piece can be easily disengaged when the rear end of the retaining body is pushed a little and the retaining body swings slightly. This makes the connection between the two metal fittings even more secure.

In addition, a step with a cutout on the lower side is formed at the front end of the support piece of the guide body, and a step with a cutout on the top that can be freely engaged with the step and can be freely engaged with the step is formed on the front end of the support piece of the insertion fitting. Since both the stepped portions are engaged when the metal fitting and the receiving metal fitting are connected, it is possible to prevent the insertion metal fitting from wobbling when the two metal fittings are connected.

In addition, since the lower end surface of the front end of the protruding piece of the retaining body is brought into contact with the bottom plate of the guide body to restrict the swinging of the retaining body, the rocking of the retaining body is prevented like in conventional latching fittings. There is no need to newly provide a stopper to the support piece to restrict the movement, and processing becomes relatively simple.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a latching fitting according to an embodiment of the present invention, Fig. 2 is a vertical sectional view of the latching fitting in a state where the receiving fitting and the insertion fitting are connected, and Fig. 3 is a difference between the receiving fitting and the insert fitting. FIG. 4 is an exploded perspective view of the conventional latching fitting, and FIG. 5 is a longitudinal cross-sectional view of the latching fitting with the insertion fitting released, and FIG. FIG. 6 is a longitudinal sectional view of a conventional latch fitting with the insertion fitting riding on the curved portion of the leaf spring. A is the bracket, B is the insertion bracket, 1 is the guide body, 1
a is the bottom plate, 1b is the support piece, 1d is the hanging piece, 1f is the step, 2 is the retaining body, 2a is the top plate, 2b is the projecting piece, 2
3 is a retaining body, 3 is a leaf spring, 3a is a curved part, 3b is a piece of the leaf spring, 4a is a hook piece, 4c is a stepped part, 4d is a bottom plate, and 4e is a support piece.

Claims (1)

[Scope of utility model registration request] In a latching fitting consisting of a combination of a receiving fitting A and an insertion fitting B, the receiving fitting A is connected to a bottom plate 1a,
Support pieces 1b are connected to both sides of the bottom plate 1a and project upward; a step part 1f is formed at the front end of the support piece 1b and has a cutout at the bottom; A guide body 1 consisting of a protruding latch piece 1d; and a top plate 2a facing the bottom plate 1a.
and a protruding piece 2b which is connected to both sides of the top plate 2a and protrudes downward and whose front lower end surface abuts the bottom plate 1a, and a protrusion piece 2b which is connected to the front end of the top plate 2a and bent downward at an acute angle. and a retaining piece 2c formed at approximately the same height as the supporting piece 1b, and the projecting piece 2b is pivotally attached to the supporting piece 1b of the guide body 1, so that it is swingably disposed between the supporting pieces 1b. The guide body 1 and the retainer 2 are arranged in a substantially U-shape, with the curved portion 3a facing the retainer piece 2c, and in order to urge the rear end of the retainer 2 upward. A board that is interposed between the two and is latched to the latching piece 1d in such a manner that at least the end of the lower piece 3b is bent so that the curved portion 3a is always in contact with the top plate 2a and is in close contact with the bottom plate 1a. The insertion fitting B is inserted between the guide body 1 and the retaining body 2, and the tip portion is between the bottom plate 1a of the guide body 1 and the curved part 3a of the leaf spring 3. The bottom plate 4d located at
d is formed at approximately the same height as the support piece 1b of the guide body 1 and projects upwardly, and a wedge-shaped hook piece 4a that can be freely engaged with the retaining piece 2c; and a wedge-shaped hook piece 4a formed on both rear sides of the bottom plate 4d and projecting upwardly The supporting piece 4e and the supporting piece 4
A stepped portion 4c formed at the front end of e and having an upper notch that can freely engage with the stepped portion 1f of the support piece 1b of the guide body 1.
A latching metal fitting characterized by comprising: