JPH0445922Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention provides a connecting device at both ends of a tightening rope that is attached along the side edge of the tire anti-slip net body.
The present invention relates to a latching metal fitting of a connecting device which is latched and fixed to both side edges of the net main body, and more particularly relates to an improvement of a hook portion on the connecting device side of the metal fitting.

(Prior Art) Conventionally, this type of latching fitting is the same as the latching fitting that attaches the rope portion of the tightening rope to the side edge of the tire anti-slip net body, that is, it has U-shaped hooks at both ends. It is a side-shaped metal fitting with a side surface, and each hook part is hooked onto the side edge of the net main body and the mounting rod of the connecting tool at both ends of the rope, and is attached and fixed by caulking.

(Problem to be solved by the invention) However, since the connectors at both ends of the tightening rope are made of synthetic resin, there is a risk that the attachment rods may be accidentally damaged during the caulking process. Ta.

Further, in order to avoid the above-mentioned inconveniences, great care must be taken in the caulking work, and special jigs and tools are required, resulting in poor work efficiency.

The present invention was devised in view of the problems of the prior art, and its purpose is to provide a hook that can be easily and safely attached to the connectors at both ends of the tightening rope without crimping. It is an object of the present invention to provide a fastener to prevent damage to the coupling and to improve work efficiency.

(Means for Solving the Problems) The technical means of the present invention to achieve the above object are a net-side hook portion that is latched and fixed to the side edge of the tire anti-slip net body, and a tightening rope end portion. A latching fitting for a tightening rope coupling, which is provided with a coupling-side hook portion at each end to be latched and fixed to a mounting rod provided on a synthetic resin coupling,
A pair of stopper projections are provided at opposing positions on the inner surface of the connector-side hook portion, and at least one of them is provided with a tapered surface for guiding when the metal fitting is rotated.

(Effects of the invention) The present invention hooks the hook part on the coupling part to the hanging rod of the coupling part at the end of the tightening rope, and attaches at least one pair of stopper protrusions facing each other on the inner surface of the hook part. By rotating the entire metal fitting in a desired direction using the guiding tapered surface of the protrusion, the locking rod of the coupling tool can be sandwiched between the two stopper projections and the inner bottom surface of the hook part on the coupling tool side. Therefore, when attaching the latch to the connector, there is no need for the conventional caulking work, and there is no risk of damage to the connector, making it easy and safe.

Also, as a result, you no longer have to worry about damaging the coupling while working.
No special jigs or tools are required, and the overall efficiency of the work is improved.

(Embodiment) Hereinafter, an embodiment of the present invention will be described based on the drawings.
, one end is attached to the connector b ₂ at the end of the tightening rope b, and the other end is attached to the rope part b ₁ of the tightening rope b. Attach and hold the tightening rope b to each side edge a ₁ on one side (inside) of the .

The latch 1 is attached to the side edge of the anti-slip net body a.
A substantially U-shaped net side hook portion 1a that is latched and fixed to the tightening rope b, and a substantially U-shaped coupling hook portion _1b that is latched and fixed to the synthetic resin coupling device _b2 of the tightening rope b. The side surfaces provided at both ends have a substantially square shape, and stopper projections 2 and 3 are formed on the inner surface of the connector-side hook portion 1b.

The stopper protrusions 2 and 3 are integrally formed in opposing positions on the inner surface 1b' of the hook part 1b on the connector side, and the stopper protrusions 2 and 3 are connected between the protrusions 2 and 3 by the latching rod b of the connector _b2 . The upper surface b of ₃ is narrower than the width of protrusions 2 and 3 _.
and the inner bottom surface 1b'' of the hook portion 1b so that the width is wider than the side surface B3 _' ' of the hanging rod _b3 , and each bottom surface 2a, 3a of the protrusions 2, 3 is positioned between the inner bottom surface 1b'' of the hook portion 1b. It is perpendicular to the side surface 1b'.

At least one of the projections 2 and 3 has its opposing surface connected to the net side hook portion 1a.
A guiding tapered surface 3 that slopes downward toward
b.

Therefore, in this embodiment, the protrusion 2 is cylindrical, and the other protrusion 3 is approximately triangular (right triangular) in cross section.

Note that the above example is just an example, and the protrusions 2, 3
A tapered surface similar to the above may be provided on both,
Also, only the protrusion 2 may have a tapered surface, and the width between each protrusion 2 and 3 and the protrusion 2,
3 and the inner bottom surface 1b'' of the hook portion 1b shall correspond appropriately to the thickness of the latching rod _b3 .

It should be noted that the tightening rope b ₁ , the connectors b ₂ , b ₂ , and the anti-slip net body a are not limited to the illustrated example, but are arbitrary, and are merely an example.

Next, a second example of how to install the latching fitting 1 of the present invention will be explained.
To explain using the example shown in the figure, first, the net side hook portion 1a, which is not provided with a protrusion, is connected to the rope latching fitting 4.
Hang it on the locking rod b ₃ of the connector b ₂ provided at the end of the tightening rope b (Fig. 2A), and then turn the hook part 1b on the connector side in the counterclockwise direction as indicated by the arrow X. Turn it upwards (as shown in the imaginary line in Figure 2A),
Then, the entire assembly is lowered in the direction of the arrow y, and the connector-side hook part 1b is hooked onto the latching rod _b3 (FIG. 2B).

Next, the hook part 1a on the net side is turned counterclockwise as shown by the arrow z, so that the protrusion 3 strongly presses against the locking rod _b3 , and the width of the hook part 1b increases due to the spring property of the hook part 1b (see Fig. 2). (as shown in the imaginary line shown in B), turn the bottom surface 3a of the protrusion 3 upward.
If it is located on the upper surface b ₃ ′ of the hanging rod b ₃ , then the hanging rod b ₃
is firmly attached and held by the tightening force of the hook portion 1b restored in the space between the protrusions 2, 3 and the inner bottom surface 1b'' of the hook portion 1b and the contact with the vertical bottom surfaces 2a, 3a of the protrusions 2, 3. It won't come off easily.

Therefore, as shown above, the latches 1, 1 attached to the connectors b ₂ and b ₂ are attached to the respective net side hooks _1a together with the rope latches 4 attached to the rope portion b 1. , 4a are caulked and fixed to the inner side edge a ₁ of the anti-slip net body a.

The above installation example is an example and is not limited to this. For example, the connection tool side hook part 1b is inserted from below the latching rod _b3 and the net side hook part 1a is turned clockwise in the opposite direction to the above example. In this case, the protrusion 2 on the tip 1b side of the hook 1b
shall be provided with at least a tapered surface similar to that described above.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of the latching fitting of the present invention and a connecting device for attaching the latching fitting, and Fig. 2 is a cross-sectional side view showing an example of the attachment. B shows the connecting tool side hook in a hooked state, and C shows the installed state. FIG. 3 is a plan view showing the tire anti-slip net partially omitted. In addition, in the figure, a... anti-slip net body, a ₁ ...
Side edge, b... Tightening rope, b ₁ ... Rope part, b ₂
...Connection tool, b ₃ ...Latching rod, 1 ...Latching metal fitting, 1
a...Net side hook part, 1b...Connector side hook part, 1b'...inner surface, 2, 3...stopper projection, 2a, 3a...bottom surface, 3b...tapered surface.

Claims (1)

[Scope of utility model registration request] The net-side hook part that is latched and fixed to the side edge of the tire anti-slip net body, and the coupling-side hook part that is latched and fixed to the mounting rod provided on the synthetic resin coupling at the end of the tightening rope, are attached at both ends. In this latching fitting for a tightening rope coupling device, a pair of stopper protrusions are provided at opposing positions on the inner surface of the hook portion on the coupling device side, and at least one of them is provided with a guide when the fitting is rotated. A latch for a tightening rope connector for a tire anti-slip net, characterized by having a tapered surface for use.