JP4489681B2 - Marker built-in socket wrench and marker liquid supply device - Google Patents

Description

  The present invention relates to an improvement of a marker built-in socket wrench and a marker liquid supply apparatus thereof.

When there are a plurality of bolts or nuts to be tightened, it is important to manage whether or not they are tightened. In view of this, a technique has been proposed in which management is thoroughly performed by marking a bolt or nut that has been tightened (see, for example, Patent Document 1).
JP-A-8-47868 (FIG. 2)

Patent document 1 is demonstrated based on the following figure.
FIG. 9 is a diagram for explaining the basic principle of the conventional technique. A nut 103 is set in a nut engaging portion 102 provided in the hydraulic torque wrench 101, and the nut 103 is tightened. When the tightening of the nut 103 is completed, the hydraulic pressure is sent to the hydraulic cylinder 105 through the oil passage 104, and the piston cylinder 106 is operated. Then, a pad 107 provided in the piston cylinder 106 is brought into pressure contact with the bolt 108, and the tip of the shaft portion of the bolt 108 is marked. Reference numeral 109 denotes a spring for returning the piston cylinder.

The torque wrench with a mark function of Patent Document 1 requires a hydraulic path 104, a hydraulic cylinder 105, a piston cylinder 106, and a spring 109, so that the structure is complicated.
Therefore, a torque wrench having a simple structure is required.

A torque wrench with a mark function having a simple structure has been proposed (see, for example, Patent Document 2).
Japanese Utility Model Publication No. 60-161568 (FIG. 1)

FIG. 10 is a diagram for explaining the basic principle of another conventional technique. The marker built-in socket wrench 120 is bolted by fitting a bolt (not shown) to the fitting portion 122 of the socket 121. The bolt head is marked with a sponge 123 containing marker liquid provided in the back of the fitting portion 122.
As is apparent from the figure, the sponge 123 is a long (high) columnar object, and is considered to have improved cushioning properties by being long (high).

  The marker solution is supplied through an injection port 124 provided on the side wall of the socket 121 and an injection pipe 126 provided on the collar 125. And since the height dimension of sponge 123 is large, the injection pipe 126 can be provided in an upper position.

In the technique of Patent Document 2, since the marker liquid is supplied using the inlet 124 provided on the side wall of the socket 121, skill is required and the work efficiency is reduced.
Further, if the sponge 123 is used repeatedly, the restoring performance is deteriorated, the lower surface of the sponge 123 is raised, and there is a possibility that it will not hit a bolt or nut. If the height of the sponge 123 is large, the amount of expansion / contraction increases, and the rise of the lower surface of the sponge 123 becomes significant.

  It is an object of the present invention to provide a marker built-in socket wrench that has a simple structure, sufficient restoration performance, and can easily supply a marker liquid.

The invention according to claim 1 includes a socket wrench having a base and a socket and a socket, and a marker interposed in the socket for storing marker liquid colored on the head or nut of a bolt fitted to the socket. A liquid storage member, and a support member that supports the marker liquid storage member so as to be movable in the axial direction of the socket. The marker liquid storage member has a diameter larger than the diameter of the bolt shaft and the bolt head or A through hole having a diameter smaller than the outer diameter of the nut is formed, the support member is provided with a storage recess for storing the tip of the bolt shaft, and a screw through hole is provided at the bottom of the support member storage recess. together with passing the adjusting screw which is socket screwed into through holes, interposed a spring member between this support member and the socket, the axial direction of the socket the marker fluid storage member Characterized by being movably supported.

  The invention according to claim 2 is characterized in that the socket wrench is a torque wrench.

The invention according to claim 3 is a marker liquid supply device that supplies the marker liquid to the marker built-in socket wrench according to claim 1 or 2 , wherein the marker liquid supply device stores the marker liquid. A container, a liquid take-out pipe that is provided in the marker liquid container for taking out the marker liquid from the marker liquid container and can be fitted with a socket, a valve mechanism that opens and closes a liquid passage of the liquid take-out pipe, and The valve rod protrudes from the valve mechanism and is pushed by the support member to open the liquid passage.

The invention according to claim 4 is a marker liquid supply device for supplying marker liquid to the marker built-in socket wrench according to claim, wherein the marker liquid container includes an expansion / contraction part that expands and contracts along the longitudinal axis of the valve stem. It is characterized in that it is configured to shrink and increase the internal pressure when pushed by the socket.

In the invention according to claim 1, the marker liquid storage member is interposed inside the socket, and the marker liquid storage member is supported via the spring member so as to be movable in the axial direction of the socket.
According to the first aspect, since the marker liquid storage member is interposed in the socket, the hydraulic path, the hydraulic cylinder, the piston cylinder and the spring can be omitted, and the structure in the socket can be simplified.

In addition, since the marker liquid storage member is movably supported in the axial direction of the socket via the support member via the spring member, even if the marker liquid storage member itself loses elasticity, the marker liquid storage member is The bolt head or nut can be pressed by a spring or the like. Further, supporting support member for supporting the marker fluid storage member, so to press the nut through the marker fluid storage member by the elastic force of the spring, can be further strongly marking.
Further, according to the present invention, the marker liquid storage member is provided with a through hole having a diameter larger than the diameter of the bolt, and the support member is provided with a storage recess for storing the tip of the shaft portion of the bolt. Can be stored in the storage recess. Further, when the marker liquid is supplied, more marker liquid can be stored by storing the marker liquid in the storage recess.

In the invention according to claim 2, the socket wrench is a torque wrench.
The torque wrench is a tightening tool that can maintain the tightening torque of bolts and nuts at a predetermined value. If such an important torque wrench is provided with a mark liquid storage member and marking can be performed on the head or nut of the bolt, the management of the torque wrench becomes easy, which is preferable.

In the invention according to claim 3, the liquid take-out pipe into which the socket can be fitted, the valve mechanism for closing the liquid passage of the liquid take-out pipe so as to be openable and closable, and protruding from the valve mechanism and pushed by the support member By providing the valve rod that opens the liquid passageway, the marker liquid is supplied to the marker liquid storage member interposed inside the socket by pushing the valve rod with the socket.
According to the third aspect, similarly to the bolt and nut tightening, the socket may be fitted into the liquid take-out pipe, and no skill is required. That is, even an inexperienced worker can easily supply the marker solution.

In the invention which concerns on Claim 4, the marker liquid container was equipped with the expansion-contraction part extended and contracted along the longitudinal axis of a valve rod, and it was comprised so that it might shrink | contract and may increase an internal pressure by being pushed with a socket.
According to the fourth aspect, the marker liquid can be ejected from the liquid take-out pipe by pressing the valve rod with the socket and further contracting the expansion / contraction part. That is, it is only necessary to fit the socket to the liquid take-out pipe in the same manner as the bolt and nut tightening, and even an inexperienced worker can easily supply the marker liquid.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a side view of a marker built-in socket wrench 10 according to the present invention. A marker built-in socket wrench 10 includes a handle 13 having a grip 11 at one end and a torque meter 12 at the other end, and a bolt connected to the torque meter 12. And a socket 14 to be fitted to the head or nut.

FIG. 2 is a cross-sectional view of the socket according to the present invention. The socket 14 has a fitting portion 17 for fitting a bolt head or nut into an opening, and a hollow portion 18 is provided at the back of the fitting portion 17. provided, the hollow portion 18 in the bolt shank 34 is disposed a support member 21 comprising a storage recess 19 for accommodating the front end (see FIG. 3b), the shank 34 volts to the fitting portion 17 side of the support member 21 And a marker liquid storage member 24 that includes a marker liquid 23 and has a through hole 22 having a diameter larger than the diameter of the through hole 22.

Further, a screw-through hole 25 is formed in the bottom of the storage recess 19, and the adjustment screw 26 is passed through the screw-through hole 25. The adjusting screw 26 is screwed into a female screw portion 29 provided on the bottom portion 28 of the socket 14 via a small spring 27.
The support member 21 is now attached to the socket 14 so as to be movable in the axial direction.

  In addition, what is necessary is just to set suitably the size of the fitting part 17 and the accommodation recessed part 19 according to the size of the volt | bolt and nut which are bolt fastening or nut fastening object.

The operation of the marker built-in type socket wrench described above will be described next.
FIG. 3 is an operation explanatory view of the marker built-in type socket wrench according to the present invention.
In (a), the socket 14 is close to the nut 31. At this time, the nut 31 has not been marked yet.

In (b), the socket 14 was brought closer to the nut 31 than in (a), the marker liquid storage member 24 was applied to the nut 31, and the tip of the shaft portion 34 of the bolt 32 was stored in the storage recess 19. When the marker liquid storage member 24 contacts the nut 31, the nut 31 is marked.

  Immediately after the marker liquid storage member 24 contacts the nut 31, the small spring 27 does not contract. The distance between the support member 21 and the bottom portion 28 of the socket 14 at this time is d1.

  In (c), the socket 14 was pushed further toward the nut 31 than in (b). Although the support member 21 does not hit the nut 31 and does not move, the socket 14 moves to the nut 31 side as the small spring 27 contracts. As a result, the fitting portion 17 was fitted to the nut 31, and the distance d2 (d1> d2) was established between the support member 21 and the bottom portion 28 of the socket 14. At this time, the support member 21 presses the nut 31 via the marker liquid storage member 24 by the elastic force of the small spring 27. That is, marking is performed more strongly than in (b).

When the tightening with the set torque is completed, the socket 14 may be removed from the nut 31.
Further, in this figure, the nut tightening has been described, but the bolt tightening can be performed in the same manner.

  By the way, when marking on the bolts and nuts is repeated, the marker liquid storage member 24 runs out of the marker liquid 23. If the marker solution 23 is insufficient, marking cannot be performed, and therefore it is necessary to replenish the marker solution 23 as appropriate.

  FIG. 4 is a perspective view of the marker liquid supply apparatus according to the present invention. The marker liquid supply apparatus 40 includes an apparatus main body 41 for storing the marker liquid, a detachable attachment to the apparatus main body 41, and a marker liquid from the apparatus main body 41. And a cap portion 42 for taking out the water. These components are described in detail in the next figure.

  FIG. 5 is an exploded perspective view of the marker liquid supply apparatus according to the present invention. In the apparatus main body 41, the male side coupling 43 is connected to a marker liquid container 46 having an expansion / contraction part 45 by a hose band 44, and this marker liquid container 46 is housed in a container holding mechanism 47 (details will be described later).

  The cap portion 42 has a hose joint nut 53 fitted to a socket (reference numeral 14 in FIG. 1) attached to one of both screw nuts 52 provided with a liquid passage 51 to constitute a liquid take-out pipe 54, and the other has a funnel 55 and a small The hose joint nut 62 is attached through the packing 56, the female side coupling 57, the aluminum plates 58 and 58, the large packing 59, and the small packing 61 in this order. The liquid passage 51 of both screw nuts 52 is passed, and a small nut 66, a packing 67, a washer 68, and a small nut 66 are assembled in this order at the tip of the valve stem 63.

  Reference numeral 69 denotes a notch provided in the hose joint nut 53, and reference numerals 71 and 71 denote pressing members provided in the female coupling 57.

  That is, by fitting the male side coupling 43 provided in the apparatus main body 41 and the female side coupling 57 provided in the cap part 42, the apparatus main body 41 and the cap part 42 can be detachably attached.

  FIG. 6 is an explanatory view of the structure of the marker liquid supply device according to the present invention. A container holding mechanism 47 provided in the marker liquid supply device 40 includes a fixed plate 73 provided with a joint pipe 72 fixed at the center, A movable plate 75 having an opening 74 through which the movable plate 75 is disposed horizontally with the fixed plate 73, and the movable plate 75 and the fixed plate 73 through a large spring 76... Are installed with guide bolts 77..., Washers 78... And nuts 79. 82 is a floor of the work place, 83 is a fixed base provided at a predetermined height from the floor 82 and having a pipe through hole 84 and nut housing holes 85.

  The marker liquid supply device 40 stores a marker liquid container 46 that stores the marker liquid 23 in a pipe 81 provided in the container holding mechanism 47, and a male side coupling 43 is connected to the marker liquid container 46 by a hose band 44. The male side coupling 43 is attached to the female side coupling 57 of the cap part 42.

  The marker liquid supply device 40 is installed by installing the pipe 81 of the marker liquid supply device 40 on the floor 82 of the work place through the pipe through hole 84 of the fixed base 83 and replacing the nuts 79. Store.

  The marker solution supply device 40 is replenished with the marker solution 23 after the cap portion 42 is removed from the apparatus main body 41, the marker solution container 46 is filled with the marker solution 23, and the cap portion 42 is attached again.

FIG. 7 is an operation diagram of the marker liquid supply apparatus according to the present invention.
In (a), immediately after the valve stem 63 comes into contact with the marker liquid storage member 24 of the socket 14, the valve 86 composed of the packing 67 and the washer 68 is urged toward the both screw nuts 52 by the push spring 65, and the valve 86 is Since it is closed, the marker liquid 23 does not flow into the liquid passage 51 and is not supplied to the marker liquid storage member 24.

  In (b), the socket 14 is pushed to the marker liquid supply device 40 side, the valve rod 63 is pushed by the support member 21, and the small spring 27 is contracted. At this time, since the push spring 65 is not yet contracted and the valve 86 remains closed, the marker liquid 23 does not flow into the liquid passage 51 and is not supplied to the marker liquid storage member 24.

FIG. 8 is an operational view of the marker liquid supply apparatus according to the present invention following FIG.
In (a), the socket 14 is further pushed toward the marker liquid supply device 40 side, the valve rod 63 is pushed by the support member 21, the push spring 65 is contracted, the valve 86 is opened, and the valve rod 63 contacts the liquid take-out pipe 54. . At this time, the marker liquid 23 flows into the liquid passage 51, but the marker liquid 23 is not supplied to the marker liquid storage member 24 because the internal pressure in the marker liquid container 46 is insufficient. The large springs 76 are not yet contracted.

  In (b), the socket 14 is further pushed to the marker liquid supply device 40 side than (a), the socket 14 and the liquid take-out pipe 54 are fitted, the valve rod 63 is pushed by the support member 21, and the valve rod 63 is used as a cap. The joint 42 is pushed by the pressing members 71, 71 provided on the female coupling 57 of the cap part 42, and the large spring 76 is pushed by the fixing plate 73 provided fixed to the joint pipe 72. The large springs 76 are shrunk.

  At this time, the joint pipe 72 descends along the pipe (reference numeral 81 in FIG. 6). As the joint pipe 72 descends, the expansion / contraction part 45 provided in the marker liquid container 46 contracts, and the internal pressure in the marker liquid container 46 increases.

The marker liquid 23 is ejected toward the marker liquid storage member 24 of the socket 14 through the liquid passage 51 and the notch 69 and supplied to the marker liquid storage member 24. Further, since the storage recess 19 and the hollow portion 18 are also stored, more marker liquid 23 can be stored in the socket 14.
Further, when supplying the marker liquid 23, the marker liquid 23 overflowing from the fitting portion 17 of the socket 14 is received by the funnel 55.

  As described above, by interposing the marker liquid storage member inside the socket, the hydraulic path, the hydraulic cylinder, the piston cylinder and the spring can be omitted, and the structure in the socket can be simplified. Further, since the marker liquid storage member is supported so as to be movable in the axial direction of the socket, even if the heads of the bolts and the heights of the nuts are uneven, marking can be clearly performed.

  Furthermore, a liquid take-out pipe that can be fitted with a socket, a valve mechanism that closes and opens the liquid passage of the liquid take-out pipe, and a valve rod that protrudes from the valve mechanism and is opened by the support member to open the liquid passage As a result, the marker liquid is supplied to the marker liquid storage member interposed in the socket by pushing the valve stem with the socket.

  That is, it is only necessary to fit the socket to the liquid take-out pipe in the same manner as bolt and nut tightening, and no skill is required. Even an inexperienced worker can easily supply the marker solution.

In addition, the marker built-in type socket wrench of claim 1 may be a torque wrench, a ratchet wrench or the like, and its form is arbitrary.
Moreover, the marker liquid storage member should just contain marker liquids, such as felt and sponge, and the material is arbitrary.
And the marker liquid supply apparatus of Claim 4 should just be provided with the marker liquid container, the liquid extraction pipe | tube, the valve mechanism, and the valve rod, and each structure is not limited to an Example.

  The marker built-in type socket wrench of the present invention is suitable for tightening bolts and nuts at a plurality of locations.

It is a side view of the marker built-in type socket wrench according to the present invention. It is sectional drawing of the socket which concerns on this invention. It is operation | movement explanatory drawing of the marker built-in type socket wrench which concerns on this invention. It is a perspective view of the marker liquid supply apparatus which concerns on this invention. It is a disassembled perspective view of the marker liquid supply apparatus which concerns on this invention. It is structure explanatory drawing of the marker liquid supply apparatus which concerns on this invention. It is an effect | action figure of the marker liquid supply apparatus which concerns on this invention. It is an effect | action figure of the marker liquid supply apparatus which concerns on this invention following FIG. It is a figure explaining the basic principle of the prior art. It is a figure explaining the basic principle of another conventional technique.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Marker built-in socket wrench, 11 ... Grip, 14 ... Socket, 19 ... Storage recessed part, 21 ... Support member, 22 ... Through-hole, 23 ... Marker liquid, 24 ... Marker liquid storage member, 25 ... Screw through-hole, 26 DESCRIPTION OF SYMBOLS ... Adjustment screw, 27 ... Spring member, 31 ... Nut, 32 ... Bolt, 34 ... Bolt shaft part, 40 ... Marker liquid supply device, 45 ... Expansion / contraction part, 46 ... Marker liquid container, 51 ... Liquid passage, 54 ... Liquid extraction Pipe, 63 ... valve stem, 86 ... valve.

Claims (4)

A socket wrench having a grip at the base and a socket, a marker liquid storage member interposed inside the socket for storing marker liquid colored on the head or nut of a bolt fitted to the socket, and the marker liquid A support member that supports the storage member so as to be movable in the axial direction of the socket;
The marker liquid storage member is formed with a through hole having a diameter larger than the diameter of the bolt shaft and smaller than the outer diameter of the bolt head or nut, and the support member houses the tip of the bolt shaft. A storage recess,
A screw-through hole is provided in the bottom of the storage recess of the support member, an adjustment screw screwed into the socket is passed through the screw-through hole , and a spring member is interposed between the support member and the socket. ,
The marker liquid storage member is supported so as to be movable in the axial direction of the socket.
This is a socket wrench with a built-in marker.   2. The marker built-in socket wrench according to claim 1, wherein the socket wrench is a torque wrench. A marker liquid supply device for supplying a marker liquid to the marker built-in type socket wrench according to claim 1 or 2 ,
The marker liquid supply device includes a marker liquid container that stores the marker liquid, a liquid extraction pipe that is provided in the marker liquid container and can be fitted with the socket to extract the marker liquid from the marker liquid container, and the liquid A marker liquid supply device comprising: a valve mechanism for closing and opening a liquid passage of a take-out pipe; and a valve rod protruding from the valve mechanism and opening the liquid passage by being pushed by the support member. The marker liquid container is provided with a telescopic part that expands and contracts along the longitudinal axis of the valve stem, it is pushed in the socket, according to claim 3, characterized by being configured to contract and increase the internal pressure Marker liquid supply device.

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