JPH058319Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is suitable for unloading and unloading of various materials when installing power transmission towers, and for unloading and unloading of electric wires when connecting electric wires to already installed towers. This relates to a portable manual winch used for slack adjustment and loading/unloading of materials.

[Conventional technology]

As shown in FIG. 9, a conventional portable manual winch includes a winding drum 4 for winding a lifting wire and a rectangular frame 3 on which the winding drum 4 is rotatably mounted. The machine frame 3 has horizontal bars 6, 7 installed at the upper and lower ends of opposing side plates 5, 5, and each protrusion 8 of the horizontal bars 6, 7 that protrudes from the side plates 5, 5 is spaced apart from the side plate 5. A flange-like retaining member 9 is provided, and a V-shaped recessed part 13 is formed on the back side of the upper wall 14 and lower wall 15 that protrude rearward from the side plates 5, 5, and the front lower part of the side plates 5, 5 is provided. A front wall 25 is provided on the front wall 25, and a fixing wire holding member 26 is attached which is screwed onto the front wall 25 to immovably hold the end of the fixing wire 2, which will be described later. A bearing box 27 is provided in which the bearing member 19 of the trunk 4 is inserted and fixed from the front side, and the handle shaft 20 is pivotally supported between the upper parts of the side plates 5 and 5.
A small gear 21 that meshes with the large gear 18 of the body wrap 4 is provided on the upper horizontal rod 6. A wrench fitting part 22 in the shape of a square prism is formed at both ends of the handle shaft 20 protruding from the side plate 5. A ratchet 23 for stopping and preventing reverse rotation and a lever 24 for releasing the locked state are provided. This machine frame 3 is fixed to a columnar support 1 such as a tree or a steel tower support with a fixing wire 2. Align the concave notches 13 of the upper and lower walls 14, 15 with the support 1, and place one end of the fixing wire 2. is fixed with a wire holding member 26, or a loop is formed at one end and hooked onto the protrusion 8 of the horizontal rods 6, 7, and the fixing wire 2 is turned to the back side and tightly wrapped around the support 1, while Hook it on the protruding part 8 of the horizontal bar on the opposite side, rewind it, turn it around the back side of the support 1 again, wrap it tightly and hook it on the original protruding part 8 of the horizontal bar, repeat this several times, and remove the excess. The fixing wire 2 is held under tension by the holding member 26. This fixing work may be performed separately for the upper and lower parts of the machine frame 3, or may be performed at the same time.

The winding drum 4 has a drum-shaped winding drum body 17 and a large gear 18 fixed to a winding drum shaft 16, bearing members 19 attached to both ends of the winding drum shaft 16, and rectangular column-shaped wrench fitting portions 22 formed on both ends of the winding drum shaft 16. After the support body 1 and the machine frame 3 are fixed, the bearing members 19 are inserted from the front side of the machine frame 3.
The bearing member 19 is inserted into the bearing box 27, and the large gear 18 is meshed with the small gear 21 of the handle shaft 20.
9 is fixed to the bearing box 27 with a pin (bolt). Then, the wrench fitting portions 22 on both ends of the handle shaft 20 are
A handle was attached to the winch, and two workers on either side of the winch adjusted their timing to rotate the handle to rotate the drum 4, and the hoisting wire was wound around the drum 4 to perform the hoisting work.

[The problem that the idea attempts to solve]

However, with the portable manual winch mentioned above,
The winding strength of the fixing wire tends to be insufficient,
During use, the fixing wire became loose, and the large tensile force applied to the lifting wire caused the winch to suddenly slide, potentially causing a very dangerous situation. This is because the conventional winch described above relies only on the arm strength of the operator to wind the fixing wire. Therefore, the fixing wire wrapped around the upper part of the machine frame and the fixing wire wrapped around the lower part of the machine frame are sometimes tied together with a separate auxiliary wire on the back side of the support to absorb the slack, but the machine frame can be fixed. The drawback was that the work was complicated.

The present invention was developed based on the above-mentioned circumstances, and provides a highly safe portable manual winch that can easily secure the machine frame to the support and that does not pose any risk of sudden danger during use. The purpose is to provide.

[Means to solve the problem]

The portable manual winch according to the present invention to achieve the above object consists of a machine frame fixed to a suitable support with a fixing wire, and a winding drum rotatably attached to the machine frame, and the relative orientation of the machine frame is A horizontal rod is pivotally supported between the upper and lower ends of the side plate, and a protrusion that protrudes to the outside of the side plate is provided at both ends of each horizontal rod, and a retaining member for the fixing wire is attached to each protrusion apart from the side plate. Then, fix the locking part of the fixing wire to the protruding part of one of the horizontal bars,
It is characterized in that a wrench fitting portion is formed at one end of each horizontal rod.

[Effect]

In the portable manual winch according to the present invention, the fixing wire is repeatedly wound around the protruding parts at both ends of the horizontal rod and the back side of the support that fixes the machine frame, and then the remaining fixing wire is wrapped around the protruding parts of the horizontal rod. Hang it on the locking part,
By rotating the horizontal rod and winding up the fixing wire, the loosening of the fixing wire is removed, and
This increases the wrapping strength.

〔Example〕

Hereinafter, the portable manual winch according to the present invention will be described in detail with reference to the drawings. The winch of the present invention comprises a rectangular machine frame 3 which is fixed to a support body 1 with a fixing wire 2 as appropriate, and a winding drum 4 which is rotatably mounted on the machine frame 3.

The machine frame 3 has an upper transverse rod 6 between the upper ends of opposing side plates 5, 5, and a lower transverse space 7 between the lower ends of the side plates 5, 5, respectively.
It is rotatably constructed so as to protrude outward from the wall. A flange-shaped plate stopper member 9 whose diameter becomes thicker at a position away from the side plate 5 is fixed to the protrusion 8 of each horizontal rod 6, 7, and a groove-shaped fixing wire is fixed to one of the locking members 9. A wrench fitting part 11 having a square cross section is formed on the outside of the other retaining member 9. Auxiliary members 12 extending rearward are provided at the upper ends of both side plates 5, 5.
An upper wall 14 with a recessed portion 13 is provided in close contact with the support 1 via the support member 1 . Similarly, a lower wall 15 with a recessed notch 13 is provided at the lower end of both side plates 5,5. or,
A bearing box 27 for mounting the body wrap 4 is provided in the center of each side plate 5. Here, the drum body 4 has a drum-shaped drum main body 17 and a large gear 18 attached to the drum 16, and bearing members 1 are attached to both ends of the drum shaft 16, as in the conventional product.
9 and 19, and in order to attach it to the machine frame 3, each bearing member 19 is inserted into the bearing box 27 from the front side, and both 19 and 27 are connected with a pin or bolt. Further, a handle shaft 20 is pivotally supported between the upper parts of the side plates 5, 5, a small gear 21 is provided on the handle shaft 20 to mesh with the large gear 18 of the winding drum 4, and a cross section is provided at both ends of the handle shaft 20 protruding from the side plates 5. A square wrench fitting part 22 is formed, and a ratchet 23 that engages with the large gear 18 to prevent it from rotating in the reverse direction and a lever 24 that releases the engaged state are attached to the upper horizontal rod 6. be. Further, a holding member 26 for immovably fixing the end of the fixing wire 2 is provided on the front wall 25 at the lower front of the machine frame 3, and the holding member 26 is also attached to the upper wall 14. Note that the reference numeral 28 in the figure is a keyway for fixing the retaining member 10 to the horizontal bars 6 and 7.

The present winch has the above-mentioned structure, and in order to fix the machine frame 3 to an appropriate support 1, such as a tree or the support of a power transmission tower, the recessed portions 13 provided on the back side of the upper and lower walls 14, 15 are inserted into the support 1. At the same time, at the top of the machine frame 3, hook the loop provided at one end of the fixing wire 2 to the protrusion 8 of the upper horizontal rod 6, turn the fixing wire 2 from the side of the support 1 to the back side, Hook it on the protrusion 8 on the opposite side, turn it again to the back side of the support 1, hook it on the original protrusion 8, repeat this several times,
While tensioning the remaining fixing wire 2, hook it to the wire locking part 10 of one of the retaining members 9, and attach it to the horizontal rod 6.
A handle is attached to the wrench fitting part 11 provided at one end, the handle is turned in a predetermined direction, and the fixing wire 2 wound around both the protrusions 8 and the support body 1 is strongly tightened. The remaining fixing wire 2 beyond the locking part 10 is held immovably by the holding member 26,
This prevents the fixing wire 2 from loosening again. Similarly, in the lower part of the machine frame 3, the fixing wire 2 is tightly wound and fixed using the lower crossbar 7, etc., which can be rotated by a handle. The winding barrel 4 is attached to the machine frame 3 fixed to the support 1 in this way, the handles are attached to both wrench fitting parts 22, 22 of the handle shaft 20, and two workers on both sides of the proposed winch adjust the timing. Turn the handle and perform work such as loading materials.

[Effect of idea]

As described above, in the portable manual winch according to the present invention, in order to properly fix the machine frame to the support, the fixing wire is wound around the protrusion of the transverse rod and the support by rotating the transverse rod. You can tighten it even more. Therefore, the winch of the present invention can be fixed to a support more strongly than conventional products, so even when a large tensile force is applied through the hoisting wire when using the winch, there is no fear that the winch will suddenly shift, and it can be used with peace of mind. In addition, in order to improve the winding strength of the fixing wire, it is sufficient to lock the fixing wire to the locking part of the retaining member and rotate the horizontal rod using the wrench fitting part. Fixing work can be done easily.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a portable manual winch according to the present invention, Figs. 2, 3, and 4 are a front view, side view, and plan view of the frame of the winch according to the invention;
B, C are the left side view, front view, and right side view of the horizontal rod with a retaining member used in the proposed winch, and Fig. 6A,
B, C are the left side view, front view, and right side view of the retaining member with a locking part, FIG. 7 A, B, and C are the left side view, front view, and right side view of the other retaining member, FIG. 8 9 is a front view of the horizontal rod, and FIG. 9 is a perspective view of a conventional winch. 1... Support body, 2... Fixing wire, 3... Machine frame, 4... Winding drum, 5... Side plate, 6... Upper horizontal rod,
7...Lower horizontal rod, 8...Protruding part, 9... Removal prevention member, 10... Fixing wire locking part, 11... Wrench fitting part, 26... Holding member.

Claims (1)

[Scope of utility model registration request] It consists of a machine frame 3 in which an upper crossbar 6 and a lower crossbar 7 are installed between the upper and lower ends of opposing side plates 5, 5, and a winding drum 4 rotatably attached to the machine frame 3. A side plate 5 is attached to the protruding portion 8 of each horizontal rod 6, 7 that protrudes outward.
Attach a retaining member 9 further apart, bring the back side of the machine frame 3 into contact with an appropriate columnar support 1, and wrap the fixing wire 2 around each protrusion 8 and the back side of the support 1. , in a portable manual winch that fixes the machine frame 3 to the support 1 by immovably holding the end of the fixing wire 2 with a holding member 26 attached to a suitable position on the machine frame 3, each horizontal rod 6, 7 is attached to a side plate. 5, a fixing wire locking part 10 is fixed to one protrusion 5 of each horizontal bar 6, 7, and a wrench fitting part 11 is provided at one end of each horizontal bar 6, 7. A portable manual winch characterized by: