JP3121340U - Barber - Google Patents

Abstract

In a barber that is pivotally connected by a pivot bolt and a fastening nut that pass through both blades with a bearing member interposed at the crossing portion, the shape of the concave portion of the pivot body is simplified, and the pivot portion This makes it easy to secure the clearance of the blade facing surface.
A bearing member is formed of a cylindrical bearing body and a collar body, and the bottom surface of the head is the end surface of the outer cylindrical portion of the cylindrical bearing body when a pivot bolt is inserted into the collar body. The shaft portion protruding from the flange portion of the collar body is formed in the square shaft portion and the screw shaft portion, and the tightening nut 5 is formed in the cap nut. The blade 1 houses a bearing member from the outer surface side, a flange portion 35 of the collar body projects from the opposite surface side, and a storage hole portion provided with a contact step 14 that contacts the end surface of the outer cylinder portion. The other sword body 2 is formed with an abutting recess 23 with which the flange portion 35 of the collar body projecting to the opposing surface abuts, and a tightening nut is screwed to the pivot bolt.
[Selection] Figure 5

Description

  The present invention relates to the improvement of the pivot axis part in the barber shop.

  As is well known, the basic structure of a spear is to cross a pair of swords in an X shape, drill a shaft hole that penetrates both swords, and pivotally connect the crossing part with a pivot shaft inserted through the shaft hole. It will be. Moreover, if the pivot shaft portion is loose in the axial direction, it does not exhibit a smooth cutting action, so it must be tightened to some extent. However, if tightened strongly, the blade may not rotate smoothly. As countermeasures, there are known means for interposing a resin washer between the blades so that the blades can operate smoothly even with strong tightening, and means for installing a bearing body with an upper and lower sliding plate instead of the resin washer. (Patent Document 1).

  The means for interposing the bearing body allows the blade to rotate more smoothly than the resin washer for the purpose of reducing the frictional resistance. However, when the bearing body is used with the upper and lower sliding plates, if the hair fragment cut into the bearing body housing recess surface of the pivoting portion enters, the hair strip adheres to the bottom surface of the recess or the surface of the bearing body. If it adheres to the bottom face of the concave part at the passing position of the bearing ball, hair strips are interposed in the operating part, and the feeling of use is significantly reduced.

  Therefore, the applicant of the present application has proposed a means for interiorizing a bearing body (cylindrical bearing body) in which a bearing ball is interposed between the inner and outer double cylinders in a recess provided on the opposing surface of the blade of the pivoting part. (Patent Document 2). Furthermore, a configuration has been proposed in which a predetermined projection is provided in the recess so that the inner and outer cylindrical portions of the cylindrical bearing body can be easily connected together with the opposing blade body, and a collar member is attached to the cylindrical bearing body (patent) Reference 3).

  In addition, a configuration was proposed in which the cylindrical bearing body is not housed in the concave portion provided on the surface opposite to the pivoting portion, but one of the blades is a through hole, and the cylindrical bearing body is accommodated in the through hole and the opposing surface concave portion. (Patent Document 4).

  Furthermore, the structure which reduces the protrusion to the outward of the head of the pivot bolt and fastening nut which connect a pivot part was proposed (patent document 5).

JP-A-7-236778. JP-A-8-141225. JP-A-9-285655. JP-A-11-156067. JP 2002-58886 A.

  In Patent Documents 2 to 4 adopting a cylindrical bearing body, when the fastening nut of the pivoting portion protrudes and the fastening nut protrudes outward from the blade body, the protruding portion becomes hair and hair. There is a high possibility of contact, and hair enters the lower part of the nut, and cleaning after use is complicated. Moreover, it cannot be said that the form is well balanced in appearance.

  In addition, the bottom surface of the concave portion of the pivotal portion of the blade body is formed so that the inner and outer cylinder portions of the cylindrical bearing body are in contact with the respective blade bodies facing each other and each blade body has a co-rotating structure with the inner and outer cylinder portions. It is necessary to perform complicated and troublesome processing such as tilting the surface or forming small protrusions. If the bottom surface inclination or the protrusions are slightly deviated, the clearance of the blade-facing surface slightly changes.

  Further, by adopting a structure in which the pivot bolt head and the fastening nut in the pivot part of Patent Document 5 are buried in the knife, the problem of the protruding nut is solved, but the knife in the pivot part. The shape of the recess is complicated, and there is a complexity in manufacturing.

  In other words, the concave portion of the blade that moves relative to the pivot shaft includes a shallow concave portion in which the head of the pivot bolt is buried, a storage concave portion of the cylindrical bearing body, and a round hole for the pivot shaft. A recess for storing the ring-shaped resin packing that secures the clearance between the opposing blades is required.

  If there is no ring-shaped resin packing that secures the clearance, the opposing surfaces of the two blades will come into strong contact with each other, resulting in the advantage of performing a smooth opening / closing operation using a bearing body.

  Therefore, the present invention is a novel pivoting part that can simplify the shape of the concave part of the sword body of the pivoting part and ensure the clearance of the sword body facing surface at the pivoting part in a barber that employs a cylindrical bearing body. The structure is proposed.

  A barber according to the present invention includes a pivot bolt and a tightening nut that cross a pair of blades having finger holes at the ends in an X shape, and through both blades with a bearing member interposed at the intersection. It is a barber made by pivoting, and a bearing member is inserted through and inserted into a cylindrical bearing body having a bearing ball interposed between inner and outer double cylindrical portions, and an inner cylindrical portion of the cylindrical bearing body and It is formed with a collar body having a flange portion located inward from the outer periphery of the cylinder portion, and when the pivot bolt is inserted into the collar body, the bottom surface of the head is the end surface of the outer cylinder portion of the cylindrical bearing body. A shaft portion protruding from the flange portion of the collar body is formed in the angular shaft portion and does not abut and is substantially coincident with the outer periphery of the outer cylindrical portion of the cylindrical bearing body, and is screwed to the distal end side of the angular shaft portion. Formed on the shaft, and the tightening nut is formed into a cap nut that is screwed onto the screw shaft. One side of the blade body accommodates the bearing member from the outer surface side, and a housing hole provided with a contact step where the flange portion of the collar body projects from the opposite surface side and contacts the end surface of the outer cylindrical portion. The other sword body has a contact recess with which the hinge portion of the collar body protruding toward the opposing surface abuts, a storage recess of the tightening nut on the outer surface side, and a contact recess and a storage recess. A rectangular shaft hole is formed in between, and a bearing member is housed in the housing hole, and a pivoting bolt is inserted, a tightening nut is screwed and tightened, and the opposing blades are pivoted. Is.

  A second device (Claim 2) is the above-mentioned first device, wherein a flange tube portion is provided on the outer tube portion of the cylindrical bearing body, and the contact step at the bottom of the storage hole portion of the blade body is provided. This is a contact step where the hinge cylinder part of the cylindrical bearing body on the surface side contacts.

  However, when the tightening nut is screwed onto the pivot bolt and tightened, one sword (a sword having a contact step) that contacts the outer cylinder of the cylindrical bearing body and the inner cylinder of the cylindrical bearing body The relative rotation of the blade body, the collar body, the pivot bolt, and the knife that rotates together with the tightening nut interposes the cylindrical bearing body, and the clearance between the opposing surfaces of both blade bodies is the outer cylinder portion. The contact between the blade and the contact step of the blade and the contact of the contact recess of the other blade of the collar body are surely secured, and the opening / closing operation of the blade that performs the scissors action is performed smoothly. It will be.

  The present invention adopts the above-described configuration, so that in the barber adopting the cylindrical bearing body, the shape of the sword body recess of the pivoting part is one through hole (storage hole part) provided with a step. On the other hand, the sword body only has recesses (abutting recesses and storage recesses) formed on the front and back sides, and in manufacturing processing, only a fixed adjustment of the excavation depth at the step position and the excavation depth of the abutting recess. Thus, a desired opposing surface clearance can be obtained, and a structure in which the pivot bolt head and the fastening nut in the pivot portion are buried in the blade can be easily manufactured.

  Next, an embodiment of the present invention will be described. 1 to 5 show a first embodiment of the present invention. The basic structure of the barber is composed of a pair of blades 1 and 2, a bearing member 3, a pivot bolt 4 and a tightening nut 5. Composed.

The swords 1 and 2 are crossed in an X shape like the conventional barber, and the crossing parts are pivoted. One of the swords 1 and 2 is the blade parts 11 and 12, and the other end is a finger hole. 12 and 22 are formed. And the recessed part and hole which mount and store the bearing member 3, the pivot bolt 4, and the fastening nut 5 are formed in the crossing part opposing surface (pivot part) of the sword 1.

  One blade body 1 in the pivot portion is formed with a storage hole portion 13 in which the bearing member 3 is stored from the outer surface side, and a contact step having a smaller diameter than the peripheral wall on the peripheral wall at the bottom of the storage hole portion 13. 14 is provided.

  The other sword body 2 is formed with an abutting recess 23 in which a flange portion 35 of a collar body 34, which will be described later, abuts on the opposite surface side, and an accommodation recess 24 of a tightening nut 5 is formed on the outer surface side. An angular shaft hole 25 is formed between the contact recess 23 and the storage recess 24.

  The bearing member 3 includes a cylindrical bearing body 30 and a collar body 34. The cylindrical bearing body 30 includes a bearing ball 33 interposed between the inner and outer double cylindrical portions 31 and 32. The flange portion 35 is provided so as to pass through the inner cylindrical portion 31 of the cylindrical bearing body 30 and to be inward from the outer periphery of the outer cylindrical portion 32.

  Further, the outer diameter thereof corresponds to the storage hole portion 13 and when the pivot bolt 4 described later is attached to the storage hole portion 13 of the blade body 1 (the outer cylindrical portion 32 is in contact with the contact step). 14 in a state in which the head 41 of the pivot bolt 4 does not protrude outward from the housing hole 13 or slightly protrudes, and further from the opposite surface side of the collar body 34. The flange portion 35 is formed so as to protrude appropriately.

  The pivot bolt 4 includes a predetermined head 41, a round shaft portion 42, a square shaft portion 43, and a screw shaft portion 44, and the head portion 41 is attached to the collar body 34 of the bearing member 3. In this case, the cylindrical bearing body 30 has a shape that does not come into contact with the upper end surface of the outer cylindrical portion 32, and has a size that substantially coincides with the outer periphery of the outer cylindrical portion 32 of the cylindrical bearing body 30.

  The round shaft portion 42 is sized to be closely inserted into the through hole of the collar body 34, and the square shaft portion 43 has a shape corresponding to the square shaft hole 25, and the tip end side of the square shaft portion 43 is formed in the screw shaft portion 44. It is a thing.

  The tightening nut 5 is a cap nut having a size corresponding to the storage recess 24 of the blade 2 and screwed into the screw shaft portion 44.

  Thus, the pivot bolt 4 is inserted into the bearing member 3, the bearing member 3 is accommodated in the accommodation hole 13, the lower end of the outer cylindrical portion 32 abuts against the abutting step 14, and the opposing surface of the blade 1 The flange portion 35 of the collar body 34 projecting from the shaft is inserted into the contact recess 23 of the opposing blade body 2, and the screw shaft portion 44 of the pivot bolt 4 is projected into the housing recess 24 of the tightening nut 5 to tighten it. The attached nut 5 is screwed and attached.

  When the tightening nut 5 is tightened, the contact step 14 and the outer cylindrical portion 32 come into contact with each other, the flange portion 35 of the collar body 34 and the contact recess 23 come into contact with each other. The clearance A between the opposing surfaces of the bodies 1 and 2 is naturally determined.

  One blade 1 is connected to the outer cylindrical portion 32 of the cylindrical bearing body 30 via the contact step 14, and the other blade 2 is attached to the square shaft hole 25 in the angular shaft portion 43. (Connection of the pivot bolt 4) and the inner cylinder portion 31, the collar body 34, and the tightening nut 5 of the bearing body 30 are connected to each other, and the relative rotation (opening and closing operation) between the two blade bodies 1 and 2 is performed by the cylinder. The bearing ball 33 of the mold bearing body 30 is interposed, so that smooth operation is performed.

  Further, the head 41 of the pivot bolt 4 is accommodated in the accommodation hole 13 or slightly protrudes outward, and the tightening nut 5 is mostly accommodated in the accommodation recess 24 as a blind nut. As a result, the outward protrusion of the pivot shaft portion can be reduced, and the balance between the front and back of the blade is improved.

  6 to 8 show a second embodiment of the present invention, which basically has the same configuration as that of the first embodiment. The difference is the contact step in the storage hole 13 of the blade 1. 14a and the contact step 14a, the structure of the cylindrical bearing body 30a of the bearing member 3a is different from the head 41a of the pivot bolt 4a. Other structures are the same as those of the first embodiment. They are the same (the parts with the same designation numbers in the drawings have the same structure, and the explanation is omitted).

  The storage recess 24 of the blade 1 is formed in a shape in which the bearing member 3a is stored, and is provided with a contact step 14a having a larger diameter than the peripheral wall at an appropriate position on the peripheral wall above the storage hole 13. is there.

  The cylindrical bearing body 30a of the bearing member 3a is provided with a flange cylinder portion 36 corresponding to the contact step 14a at the upper end of the outer cylinder portion 32.

  Further, in the pivot bolt 4a, the head portion 41a is formed in a shape that covers the upper side of the flange tube portion 36.

  Thus, when the pivoting bolt 4a is inserted into the bearing member 3a, mounted at the pivotal positions of the two blades 1, 2, and the tightening nut 5 is screwed onto the screw shaft portion 44 of the pivotal bolt 4a, the flange is The cylindrical portion 36 is attached in contact with the contact step 14a.

  Accordingly, the screwing tightening of the tightening nut 5 causes the contact step 14a and the flange tube portion 36 of the outer tube portion 32 to contact, and the flange portion 35 of the collar body 34 and the contact recess 23 contact each other. The contact portions are in close contact with each other, and the clearance A between the opposing surfaces of the blades 1 and 2 is naturally determined. As described above, by providing a predetermined clearance as in the first embodiment, the relative rotation (opening / closing operation) between the two blades 1 and 2 is smoothly performed by the bearing body 30a.

  The head 41a of the pivot bolt 4a covers the upper portion of the flange tube 36, and has an effect of preventing hair from entering in appearance.

  In the above embodiment, the leaf spring body is not particularly interposed in the screwing of the tightening nut 5 to the screw shaft portion 44. However, the leaf spring body is not particularly excluded, and a leaf spring body may be interposed. . In this case, the clearance A maintains a predetermined interval, but when an unexpected force is applied in the direction in which the distance between the opposing surfaces in the axial direction is increased (direction in which the clearance is increased), the clearance A has an effect of releasing the force. become.

1 is an overall perspective view of a first embodiment of the present invention. The exploded perspective view. FIG. FIG. FIG. The expansion disassembled perspective view of 2nd embodiment of this invention. FIG. FIG.

Explanation of symbols

1, 2 Blade 11, 12 Blade 12, 22 Finger hole 13 Storage hole 14, 14 a Contact step 23 Contact recess 24 Storage recess 25 Square shaft hole 3, 3 a Bearing member 30, 30 a Bearing body 31 Inner cylinder 32 Outer cylinder part 33 Bearing ball 34 Collar body 35 Flange part 36 Flange cylinder part 4, 4a Pivoting bolt 41, 41a Head part 42 Round shaft part 43 Square shaft part 44 Screw shaft part 5 Tightening nut

Claims (2)

  A barber that is formed by crossing a pair of blades with finger holes at the ends in an X shape, and pivoting them with pivot bolts and tightening nuts that pass through both blades with a bearing member interposed at the intersection. A cylindrical bearing body having a bearing ball interposed between the inner and outer double cylindrical portions, and an inner position from the outer periphery of the outer cylindrical portion. Formed by a collar body having a flange portion, and when the pivot bolt is inserted into the collar body, the bottom surface of the head does not come into contact with the end surface of the outer cylindrical portion of the cylindrical bearing body. A shaft portion that is substantially the same as the outer periphery of the outer cylindrical portion of the body and protrudes from the flange portion of the collar body is formed on the square shaft portion, and is formed on the distal end side of the square shaft portion on the screw shaft portion and tightened. A nut is formed on a cap nut that is screwed with the screw shaft, and one of the blades has a The bearing member is accommodated from the surface side, the flange portion of the collar body protrudes from the opposite surface side, and an accommodation hole portion provided with an abutting step contacting the end surface of the outer cylindrical portion is formed, and the other blade body The contact concave portion with which the hinge portion of the collar body projecting to the opposing surface abuts, the storage concave portion of the tightening nut on the outer surface side, and the square shaft hole between the contact concave portion and the storage concave portion, A barber characterized in that the bearing member is housed in the housing hole, and a pivoting bolt is inserted, a tightening nut is screwed and tightened, and the opposing blades are pivoted.   A barber that is formed by crossing a pair of blades with finger holes at the ends in an X shape, and pivoting them with pivot bolts and tightening nuts that pass through both blades with a bearing member interposed at the intersection. A cylindrical bearing body having a bearing ball interposed between the inner and outer double cylindrical portions and a flange cylindrical portion on the outer cylindrical portion, and through-insertion into the inner cylindrical portion of the cylindrical bearing body And a collar body having a flange portion on the opposite end surface to the flange cylinder portion, and when the pivot bolt is inserted into the collar body, the head portion is connected to the outer cylinder end surface of the cylindrical bearing body. A shaft portion that does not abut and protrudes from the flange portion of the collar body is formed as a square shaft portion, a tip end side of the square shaft portion is formed as a screw shaft portion, and a tightening nut is screwed into the screw shaft portion. The bearing member is formed on the cap nut, and one of the blades has the bearing member from the outer surface side. The bearing body is provided with an abutting step where the flange portion of the bearing body abuts, and a storage hole portion from which the hinge portion of the collar body projects from the facing surface side is formed, and the other blade body projects to the facing surface side. A contact recess with which the hinge portion of the collar body contacts, a storage recess of the tightening nut on the outer surface side, and a square shaft hole between the contact recess and the storage recess, and a bearing member is stored in the storage hole A barber characterized in that it is formed by inserting a pivot bolt and screwing and tightening a tightening nut to pivot the opposing blades.

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