JPH026069Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a lever block used, for example, for tightening wires to secure cargo, towing it, and the like.

(Prior Art) Conventionally, this type of lever block has an upper hook integrated into the main body case and a lower hook at the tip of a winding wire wound around an internal winding sheave, and one end of the lever block is attached, for example, to the chassis on one side of the truck bed. The locked towing wire is hooked onto the upper hook and the lower hook is hooked onto the chassis on the other side of the loading platform, and then a lever with a ratchet device is repeatedly operated to wind up the wire, tighten it, and unwind it.

(Problem that the invention aims to solve) However, with conventional lever blocks, the eye (loop) at the end of the traction wire is engaged with the upper hook, and the lower hook is engaged with the loading platform, etc., to pull and tighten the load. If the wire is too long or too short, the tightening and pulling work will be very troublesome, time-consuming, inconvenient, and require a lot of effort, due to the need to wind up the wire at a predetermined length. It was a bad idea.

(Means for Solving the Problems) This invention was made to solve the above problems, and is constructed as follows.

The lever block of this invention will be described in detail below with reference to the drawings. Reference numeral 1 denotes a case, and inside the case 1 there is a wire 10 having a lower hook 11.
The large gear 7 with which the winding sheave 8 for winding is integrated is the spindle 9
A small gear shaft 13 integral with a small gear 12 which is rotatably mounted on the main gear 7 and meshes with the large gear 7 is rotatably supported. Furthermore, a pawl 14 with a switching knob 15 that can be engaged with and detached from the small gear 12 is housed in the case 1. Reference numeral 16 denotes a lever in which a ratchet wheel 17 that can be engaged and disengaged with the free rotation knob 18 is interposed in the two-pronged portion of the lever.
The square hole is inserted into the square shaft part, and the small gear shaft 13 is fitted and fixed. The lever 16 can be freely rotated by operating a free rotation knob 18. Note 19
is the upper hook on the outer surface of the upper part of the case 1.

Therefore, in this idea, the back of the case 1 and the rear board 2 are
A V-shaped circumferential groove 3 surrounding the outer periphery is provided between the clamp lever 4 and a clamp lever 4 having a guide snake 5 at its tip, which is pivotally mounted 6 to the projecting plate portion 2a of the rear substrate 2.
The other traction wire 20 is wound and fitted into the V-shaped circumferential groove 3 through the guide snake 5, and clamped by the clamp lever 4.

(Function) As mentioned above, the traction wire 20, whose one end is connected to the chassis on one side of the truck loading platform, is placed on the load, and the other end is wrapped around the V-shaped circumferential groove 3 through the guide snake 5 of the lever block of the present invention, and then the clamp lever 4 is inserted. Lock it at. (See Figures 1 and 2) Then, the hook 11 of the winding wire 10 is hooked onto the chassis on the other side of the truck loading platform to connect it.

Then, set the switching knob 15 to the "wind" state (at this time, the ratchet wheel 17 attached to the lever 16 is locked by the pawl attached to the free rotation knob 18), and repeatedly move the lever 16 back and forth. When it is moved, by winding up the winding wire 10, the pulling wire 2
0 can be towed and tensioned to tighten the load on the loading platform. In addition, this lever block can perform other tasks such as hoisting, pulling out, and straightening loads. Also, set the above-mentioned switching knob 15 to "return" and lever 16
If you move , the wound wire 10 will stretch in the opposite direction. In addition, if the free rotation knob 18 is turned in the no-load state to set the ratchet wheel 17 in the free rotation state, the lower hook 1 can be freely pulled by directly pulling the winding wire 10 by hand independently of the lever 16.
1 position can be adjusted.

(Effect of the invention) In this invented lever block, a V-shaped circumferential groove 3 surrounding the outer periphery is provided between the back surface of the case 1 and the rear board 2, and a clamp having a guide snake 5 at the tip is provided on the projecting plate part 2a of the rear board 2. The lever 4 is pivotally mounted 6, and the other (upper) traction wire 20 is wound and fitted into the V-shaped circumferential groove 3 through the guide snake 5, and clamped by the clamp lever 4. The traction wire 20 can be connected to the lever block body regardless of whether the wire 20 is too long or short, and the traction wire 20 is guided by the guide snake 5 and inserted into the V-shaped circumferential groove 3. Because the weight of the lever block body bites into a wedge shape and is clamped by the clamp lever 4,
It has the excellent effect of being able to perform tasks such as load tightening, tensioning, hoisting, and pulling out of loads simply and efficiently at all times safely and stably. In particular, in this invention, the traction wire 20 bites into and is locked in the V-shaped circumferential groove 3 on the outer periphery of the lever block main body, so the more the load is applied, the more the traction wire 20 bites and slips. This has the great effect of eliminating damage to the pulling wire 20 due to local clamping of the clamp lever 4 and stably suppressing slippage of the wire by the V-shaped circumferential groove 3. Further, the lever 16 can be operated easily and the winding wire 10 can be wound quickly and efficiently.

[Brief explanation of drawings]

The drawings show an embodiment of this invented lever block, and FIG. 1 is a partially omitted front view;
FIG. 2 is a right side view of the same. DESCRIPTION OF SYMBOLS 1... Case, 2... Rear board, 2a... Projection plate part, 3... V-shaped circumferential groove, 4... Clamp lever, 5
...Guide snake, 6... Pivot, 7... Large gear,
8... Winding sheave, 9... Pivot, 10... Winding wire, 11... Lower hook, 12... Small gear, 1
3... Pinion shaft, 144... Pawl, 15... Switching knob, 16... Lever, 17... Ratchet wheel, 18... Free rotation knob, 19... Upper hook, 20... Traction wire.

Claims (1)

[Scope of utility model registration request] A small gear 12 meshed with a large gear 7 integrated with a winding sheave 8 for winding the wire 10 having a lower hook 11
The lever lock consists of a case 1 equipped with a claw 14 with a switching knob 15 that can be engaged and detached, and a lever 16 attached to the pinion shaft 13 that can be freely rotated by operating the free rotation knob 18. A V-shaped circumferential groove 3 surrounding the outer periphery is provided between the rear board 2 and the rear board 2, and a clamp lever 4 having a guide snake 5 at its tip is pivotally attached to the projecting plate part 2a of the rear board 2 to guide the other pulling wire 20. A lever block characterized in that it is fitted into a V-shaped circumferential groove 3 through a snake 5 and clamped by a clamp lever 4.