TWM552171U - Anti-loose structure of folding guitar - Google Patents

Description

Anti-loose structure of folding guitar

The present invention relates to the technical field of the structure of a folding guitar, and more particularly to a anti-loose structure of a folding guitar which can balance the swing angle adjustment effect of the first and second support rods and the good combination of firmness.

Please refer to the "Folding Guitar" invention patent previously filed by the creator of Taiwan Application No. 105133797. The structure is mainly to lock the first support rod and the second support rod to the body by two combined modules. The back side enables the first support rod and the second support rod to adjust the swing angle on the piano body, so as to achieve the optimal support mode according to the actual needs of the individual and can be conveniently carried and used. The locking structure for locking the first support rod and the second support rod to the piano body by using the two combined modules mainly uses the bolts of the two combined modules to pass through the gasket and then pass through the first The support rod or the second support rod is then screwed to the nut preset on the piano body for the purpose of bonding. However, when the first supporting rod and the second supporting rod adjust the swinging angle, the locking structure can easily rotate the head of the bolt by the frictional force, thereby causing the bolt to be easily withdrawn from the nut, thereby The first support bar and the second support bar are separated from the body, so that the bolt is frequently locked, which causes user confusion. In view of this, Benchuang In the spirit of excellence, the author strives to conduct research and experimentation on the above issues, and designs the original creation that can solve the above problems.

The main purpose of the present invention is to solve the two bolts used in the conventional folding guitar for screwing the first support rod and the second support rod to the body, which is easy with the first support rod and The second support rod is swung away from the body, resulting in a problem of poor bond strength.

The present invention provides a anti-loose structure of a folding guitar, which comprises a body, a first support rod, a second support rod and two combined modules. Among them, the body is long rod-shaped. The first support rod is in the shape of a long strip and is disposed on the back of the body near the tail of the piano. The first support rod is provided with a first through hole, and the outer end of the first through hole has a larger aperture. a first groove. The second support rod is in the shape of a long strip and is disposed on the back of the body away from the tail of the body. The second support rod is provided with a second through hole extending through the outer end of the second through hole. One of the second grooves. The two combined modules are respectively used to lock the first support rod and the second support rod to the body, and each of the joint modules comprises a bearing, a nut and a bolt, and the bearing comprises An outer bearing ring and an inner bearing ring are oppositely rotated, and the outer bearing ring is embedded and fixed in the first groove or the second groove, and the first perforation or the second perforation is The aperture is designed to be larger than the outer diameter of the inner bearing ring, and the nut is coupled to the body and has a screw hole therein, and the bolt is screwed into the screw hole through the inner bearing ring of the bearing. The outer end of the bolt has a head having a larger outer diameter, and the inner side of the head is only abutted against the inner bearing ring, the outer side of the head There is a drive slot for embedding with a tool to rotate it.

The anti-loose structure of the folding guitar provided by the present invention can be screwed to the piano by providing two bearings on the first support rod and the second support rod, and then using two bolts to pass through the two bearings. The first support rod and the second support rod are coupled to the body by the bearing inner ring of the two bearings, and then the bearing outer ring of the two bearings and the bearing are used The ring can be relatively smoothly rotated, and when the first support rod and the second support rod are swung, the bolt is not driven to rotate, so that the first support rod and the second support rod can be Under the effect of adjusting the swing angle, the bonding strength with the body can also be taken into consideration.

10‧‧‧Body

11‧‧‧Nuts hole

20‧‧‧First support rod

21‧‧‧ recess

22‧‧‧First perforation

23‧‧‧First groove

30‧‧‧second support rod

31‧‧‧ convex

32‧‧‧Second perforation

33‧‧‧second groove

40‧‧‧Combined module

41‧‧‧ bearing

410‧‧‧Outer bearing ring

411‧‧‧Inner bearing ring

42‧‧‧ nuts

420‧‧‧ screw holes

421‧‧‧Height groove

43‧‧‧Bolts

430‧‧‧ head

431‧‧‧Flange

432‧‧‧ drive slot

433‧‧‧ Missing slot

434‧‧‧ shaft bolt

44‧‧‧ half ring

The first figure is a three-dimensional exploded view of the creation.

Figure 2 is a partial perspective exploded view of the present creation.

Figure 3 is a perspective enlarged view of the bolt of the present invention.

Figure 4 is a schematic enlarged view of the three-dimensional combination of the present creation.

Figure 5 is an enlarged schematic cross-sectional view of the combined module of the present invention.

Figure 6 is a schematic view of the locking action of the bolt of the present invention.

Figure 7 is another embodiment of the present creation.

Please refer to the figures 1 to 5, which show that the anti-loose structure of the folding guitar of the present invention includes a body 10, a first support rod 20, a second support rod 30 and two combined modules 40. . among them: The body 10 has a long rod shape and two nut holes 11 are provided on the back surface.

The first support rod 20 is in the form of a long strip and is disposed on the back of the body 10 near the end of the piano. The two long side shapes of the first support rod 20 correspond to the shape corresponding to the body 10, and a recess 21 is formed at one end of the first support rod 20 toward the head. The first support rod 20 is provided with a first through hole 22, and the outer end of the first through hole 22 has a first groove 23 of a larger aperture.

The second support rod 30 is in the form of a long strip and is disposed on the back of the body 10 away from the end of the body. The two long sides of the second support rod 30 correspond to the shape corresponding to the body 10. And a convex portion 31 corresponding to the shape of the concave portion 21 is formed at one end of the second support rod 30 toward the first support rod 20, and the convex portion 31 is just allowed to be relatively embedded in the concave portion 21. The second support rod 30 is provided with a second through hole 32 extending through the outer end of the second through hole 32.

The two coupling modules 40 are used to lock the first support rod 20 and the second support rod 30 to the body 10 respectively. Each of the bonding modules 40 includes a bearing 41, a nut 42 and a bolt 43. The bearing 41 includes an outer bearing ring 410 that is coaxially rotatable relative to each other and an inner bearing ring 411. The outer bearing ring 410 is embedded and fixed in the first groove 23 (or the second groove 33). And the aperture of the first through hole 22 (or the second through hole 32) is designed to be larger than the outer diameter of the inner bearing ring 411 to avoid interference with the rotation of the inner bearing ring 411. The nut 42 has an external thread for locking into the nut hole 11. The nut 42 is provided with a screw hole 420. The outer end of the screw hole 420 has a hexagonal groove with a larger inner diameter. The 421 can be inserted into a hexagonal wrench or other tool to facilitate its rotation. The bolt 43 is adapted to pass through the inner bearing ring 411 of the bearing 41 And the screw is locked in the screw hole 420, the outer end of the bolt 43 has a larger outer diameter head 430, and the head 430 is completely recessed in the first recess 23 (or the second recess 33) The inner side surface of the head portion 430 is formed with a flange 431 having an outer diameter smaller than that of the outer bearing ring 410 for abutting against the inner bearing ring 411 to prevent the head portion 430 from interfering with the rotation of the outer bearing ring 410. The outer surface of the head 430 has a driving groove 432 which is in the form of a long groove for a copper plate, a screwdriver, etc. to be inserted to rotate it. A flank 433 is formed in the periphery of the head 430, and a half ring 44 is pivotally mounted on the head 430 by a pivot pin 434, so that the half ring 44 can swing into the slot 433 or swing to The head 430 is in an upright state of 90 degrees so that the user applies a force to rotate the bolt 43 (as shown in Fig. 6).

When the bolt 43 is tightened, the flange 431 of the inner side of the head 430 will abut against the outer side of the inner bearing ring 411 of the bearing 41 once the first support rod 20 or the second support rod 30 When swinging, the outer bearing ring 410 of the bearing 41 provided thereon can be rotated relative to the inner bearing ring 411. In this way, the bolt 43 is not rotated by the first support rod 20 or the second support rod 30, so that the first and second support rods 20 and 30 can be adjusted under the effect of adjusting the swing angle. The combination with the body 10 is firm. In particular, the degree of tightening of the bolt 43 can be adjusted to control the tightness of the first support rod 20 or the second support rod 30 and the body 10 through the connection of the bearing 41 to generate appropriate The frictional force in turn has a positioning effect.

Referring to FIG. 7, a second embodiment of the anti-loose structure of the folding guitar of the present invention is substantially the same as the above embodiment, except that the bolt 43 of the second embodiment is different. The head 430 is smaller than the outer diameter The bearing ring 410 has a cylindrical shape, and the inner side surface abuts against the outer side surface of the inner bearing ring 411. The outer side surface has a driving groove 432. The driving groove 432 is a hexagonal groove for the hexagonal wrench or other tools to be inserted for easy insertion. It spins.

10‧‧‧Body

11‧‧‧Nuts hole

20‧‧‧First support rod

22‧‧‧First perforation

23‧‧‧First groove

40‧‧‧Combined module

41‧‧‧ bearing

410‧‧‧Outer bearing ring

411‧‧‧Inner bearing ring

42‧‧‧ nuts

420‧‧‧ screw holes

421‧‧‧Height groove

43‧‧‧Bolts

430‧‧‧ head

432‧‧‧ drive slot

433‧‧‧ Missing slot

434‧‧‧ shaft bolt

44‧‧‧ half ring

Claims (10)

The anti-loose structure of the folding guitar comprises: a body with a long rod shape; a first support rod having a long strip shape and disposed on the back of the body near the end of the piano, the first a support rod is provided with a first through hole, the outer end of the first through hole has a first groove of a larger aperture; and a second support rod is formed in a long strip shape and is disposed on the body The back of the second support rod is provided with a second through hole, and the outer end of the second through hole has a second groove with a larger aperture; and two combined modules are respectively used for respectively The first support rod and the second support rod are locked on the piano body, and each of the joint modules comprises a bearing and a bolt, and the bearing comprises an outer bearing ring and an inner bearing which are coaxially rotatable relative to each other. a ring, the outer bearing ring is embedded and fixed in the first groove or the second groove, and the inner side surface of the inner bearing ring is not opposite to the groove surface of the first groove or the second groove In contact, the bolt is threaded through the inner bearing ring of the bearing and is screwed to the back of the body, the outer end of the bolt One of the larger outer diameter head portion, the inner side surface of the head is only in contact based on the inner bearing ring. The anti-loose structure of the folding guitar of claim 1, wherein the back of the body has two nut holes, and the two combined modules respectively comprise a nut, wherein the two nuts are respectively fixed and fixed Among the two nut holes, a screw hole is arranged in the nut for the corresponding bolt to be locked. The anti-loose structure of the folding guitar according to claim 2, wherein the peripheral surface of the nut has an external thread for locking in the nut hole, and the outer end of the screw hole of the nut has a larger Hex sockets for inner diameter for hex wrenches or other tools Swing it. The anti-loose structure of the folding guitar of claim 2, wherein the outer mask of the head has a drive slot for embedding with a tool to rotate it. The anti-loose structure of the folding guitar according to claim 4, wherein the head of the bolt has a cylindrical shape with an outer diameter smaller than that of the outer bearing ring. The anti-loose structure of the folding guitar according to claim 5, wherein the driving groove is a hexagonal groove. The anti-loose structure of the folding guitar according to claim 4, wherein the driving groove is an elongated groove. The anti-loose structure of the folding guitar according to claim 4, wherein the outer diameter of the head is larger than the inner bearing ring, and the inner side surface is formed with an outer diameter smaller than a flange of the outer bearing ring for the inner portion On the bearing ring. The anti-loose structure of the folding guitar according to claim 2, wherein the first support rod is formed with a recess toward one end of the head, and the second support rod is formed with a corresponding recess shape toward one end of the first support rod. One of the protrusions is such that the protrusion is just embedded in the recess. The anti-loose structure of the folding guitar of claim 2, wherein the head of the bolt is completely recessed in the first groove or the second groove.