TW201416575A - Pivoting device with fine-adjusting function - Google Patents

Abstract

The present invention relates to a pivoting device with fine-adjusting function. The pivoting device includes a first combining member and a second combining member that are pivotally connected together. A spring is provided in the second combining member and the spring includes a first end fixed to the first combining member and a second end. A ratchet is pivotally connected to the first combining member. The second end of the spring engages the ratchet. A fixing member is fit between the ratchet and the second combining member. A bolt is screwed in the fixing member. When the bolt rotates, the fixing member and the ratchet rotate together to further twist the second end of the spring. As such, the elastic force generated by twisting the spring can be precisely increased.

Description

Pivot device with fine adjustment function

The invention relates to a pivoting device with a fine adjustment function, in particular to a damping structure applied to a pivoting device as a terminal stop when the pivoting device is opened.

The known pivoting device is a hinge button for pivoting a door panel on a door frame, a hinge for opening a cover plate on a plane, or a pivoting pivotal connection of a squatable seat cushion on a body of the locomotive, that is, The pivoting device is arranged such that one end of an object can be pivoted on a fixed object by a pivoting device, and the animal piece can be carried by hand so that the object can be rotated by an angle on the fixed object, and the object is rotated to the end stop. The limit is the maximum angle at which the object can be turned.

The pivoting device is applied to the body of the locomotive, and can be used as a hinge for opening and closing the seat cushion. In recent years, it has been designed as a seat cushion that can be automatically opened upwards when unlocked, and is provided in the pivoting device. The torsion spring can pre-twist the torsion spring when the seat cushion is closed and buckled, and when the unlocking and releasing the buckle state, the seat cushion can automatically open upward by the torsional restoring force of the torsion spring, so It can achieve the practical effect of easily accessing the objects under the seat cushion.

Due to the torsion force of the torsion spring pre-twisting, when the user stops and unlocks the seat cushion with the key, the force of the seat cushion to be opened upward by the torsion force of the torsion spring is designed to make the seat cushion open to the maximum. When the angle is opened, the pivoting end of the seat cushion is often opened to the end of the maximum rotation stroke, and directly impacts the pivotal portion of the vehicle body and the hinge, and rebounds back to an angle after the collision. When the torsion force of the torsion spring is counterbalanced, the seat cushion is pushed forward again, so that the seat cushion terminal hits the vehicle body again, so that after several rounds of reciprocating swing and impact, the kinetic energy until the upward split is gradually consumed. After the impact of the body, the seat cushion that is opened upward can be gradually subsided and stopped at the maximum opening position, and since the body of the current locomotive is mostly a plastic shell structure, the positioning of the seat pad pivoting device is combined with the positioning screw. With the positioning of the nut, the seat cushion is opened upwards and the spring is acted upon by the torsion spring, so that the seat cushion repeatedly acts on the vehicle body repeatedly. The position of the positioning screw and the nut of the pivoting device is easily damaged by the frequent multiple impacts. Therefore, how to absorb the impact of the cushion to reduce the number of impacts when the seat cushion is opened is designed for the present invention. The focus is.

In order to improve the prior art, the present invention provides a "pivoting device with a fine adjustment function" which includes a first coupling member having a sleeve, the sleeve including a first side and a second side along the sleeve, the sleeve Further comprising a peripheral surface connected between the first and second sides, a mounting space formed on the first side of the sleeve, a mounting slot formed on the second side of the sleeve, between the mounting space and the mounting slot Forming a partition wall, the partition wall includes a shaft hole communicating with the installation space and the installation groove chamber, a card slot extending from the first side surface toward the second side surface but spaced apart from the second side surface, the first joint member is to be used for fixing a shaft pivotally connected to the first joint member, the shaft includes a first section and a second section, and the second section of the shaft has a non-circular end of the shaft, and the shaft is a section pivotally connected to the shaft hole of the sleeve, the end of the shaft is located outside the first side of the sleeve, and is coupled to a spring in the first coupling member, the spring includes a first end and a second end, and the spring is received In the installation space of the sleeve and at the periphery of the shaft, the spring The first end is embedded in the slot of the sleeve, the second end is located outside the installation space and the first side, a second joint member pivotally connected to the first joint member, the second joint member has a connecting wall, and the joint a first end wall and a second end wall, the first end wall of the second joint is pivotally connected to the end of the shaft and located outside the second end of the spring, and the second end wall is pivotally connected to the first end of the shaft and Located on the outer side of the second side of the sleeve, the second coupling member pivots about the axial direction of the sleeve between the open position of the joint wall away from the first joint member and the closed position of the joint wall adjacent to the first joint member, the second joint member A ratchet that is to be fixed to a second object and pivoted on the sleeve, the ratchet includes a tooth portion formed by a plurality of one-way teeth, the ratchet further comprising a linkage hole extending along the axial direction of the sleeve And the ratchet has a notch, the ratchet is pivotally disposed on the first side of the sleeve, the end of the shaft is sleeved and rotated together with the linkage hole of the ratchet, and the second end of the spring is engaged with the notch of the ratchet, so that the spring is not Twisted in a natural state between the sleeve and the ratchet, when the ratchet When moving, the first end of the retaining spring is fixed, and the second end is twisted ratchet interlocking, removable a fixing member engaged with the ratchet wheel, the fixing member comprises a front end surface and an abutting surface, and a engaging surface connected to one end of the abutting surface, wherein the plurality of latching teeth formed by the one-way teeth are formed on the engaging surface The fixing member further includes a screw hole extending from the front end surface to the abutting surface, a bolt screwed into the screw hole of the fixing member, and the bolt includes an end close to the abutting surface of the fixing member.

When the shaft is rotated, the shaft is coupled with the second end of the ratchet torsion spring to cause the spring to generate an elastic force, and then the fixing member is clamped between the tooth portion of the ratchet and the connecting wall of the second coupling member, and the fixing member is abutted. The connecting surface abuts against the connecting wall of the second connecting member, the engaging teeth are engaged with the teeth of the ratchet, so that the second end of the spring pushes the ratchet against the fixing member, and the fixing member is pressed against the connecting wall to offset and position the second combined The piece is in the open position.

After the second coupling member is biased to the open position by the spring, the bolt is rotated, and the end of the bolt protrudes out of the abutting surface of the fixing member and abuts against the connecting wall of the second coupling member, thereby causing the abutting surface of the fixing member and the The connecting walls of the two coupling members are spaced apart, and the ratchet further twists the second end of the spring to increase the spring force to bias the second coupling member.

When the second coupling member is biased to the open position by the spring, the second coupling member pivots about the axial direction of the sleeve toward the first coupling member, and the fixing member rotates the ratchet wheel together with the shaft rod to cause the ratchet torsion spring. The second end produces an elastic force that resets the second coupling member to the open position.

The fixing member screw of the invention can be used to drive the ratchet rotation, thereby achieving the purpose of accurately increasing the spring force of the spring, so that the spring force of the spring can be adjusted to the state that best meets the actual demand.

All of the following drawings are merely illustrative of the basic teachings of the present invention, and the number, position, relationship, and size of the elements constituting the preferred embodiments will be described in the drawings. Post-guided changes are implemented in industry skills. In addition, after reading and understanding the teachings of the present invention, changes in the exact dimensions and size ratios associated with particular strengths, weights, strengths, and the like are also within the skill of the art.

In the different figures, the same reference numerals are used to designate the same or similar elements; in addition, please refer to the text such as "first", "second", "third", "fourth", "fifth", "sixth", "上上", "下下", "前前", "后后", "内", "外外", "端端", "部部", "段段", "Vertical", "外外", "寛度", "Length," "around," "side," "axial," and the like, are used to facilitate the description of the present invention and are merely used to aid in the description of the present invention.

The pivoting device 10 according to the drawings includes a first coupling member 141. As shown in FIG. 1, the first coupling member 141 has a joint portion 143, and the joint portion 143 includes an arc-shaped extending portion 145, an arched sleeve. A barrel 149 is formed on the extension 145. The sleeve 149 includes first and second sides 151, 153 spaced along the axial direction of the sleeve 149. The first side 151 of the sleeve 149 extends in the axial direction of the sleeve 149. The sides of the portion 145 are spaced apart, and the second side 153 is spaced apart from the other side of the extension 145 in the axial direction of the sleeve 149 such that the sleeve 149 is positioned between the two sides of the extension 145, the sleeve 149 further comprising a connection A peripheral surface 154 between the first and second sides 151, 153. Two notches 243 extending to the second side 153 are formed on the outer surface 154 of the sleeve 149. A mounting space 155 extends from the first side 151 of the sleeve 149 in the axial direction of the sleeve 149 but is separated from the second side 153. A mounting groove chamber 157 having an inner ring wall 165 extends from the second side surface 153 in the axial direction of the sleeve 149 but is spaced apart from the installation space 155 to form a space between the first and second chambers 155, 157. a partition wall 159, a partition wall 159 facing the surface of the installation space 155 extending along the axial direction of the sleeve 149 and spaced apart from the first side surface 151, the shaft joint portion 167 having a circular hole extending from the end surface to the partition wall 159 A shaft hole 169, in addition, the installation space 155 includes a large diameter section 161 near the first side surface 151 and having a larger inner diameter, and a small diameter section 163 which is away from the first side surface 151 and has a smaller inner diameter (as shown in FIG. 3). Shown). A card slot 46 extends from the first side 151 in the axial direction of the sleeve 149 to the partition wall 159. The sleeve 149 further includes a C-shaped groove extending from the first side 151 along the axial direction of the sleeve 149. Lane 177, the channel 177 includes a first barrier wall 179 and a second barrier wall 181 spaced along the circumferential direction of the axis of the sleeve 149. The first and second barrier walls 179, 181 are along the axis defined by the sleeve 149. The circumferential direction is separated by an angle of about 170°, and the first coupling member 141 includes an abutting surface 183. The abutting surface 183 is located between the slot 46 and the second blocking wall 181 in the circumferential direction of the axial direction of the sleeve 149. The sleeve 149 further includes a recess 152 extending from the abutting surface 183 in the circumferential direction of the sleeve 149 through the slot 46. The first coupling member 141 further includes two notches 243 formed on the second side 153, The joint portion 143 of the joint member 141 is provided with a plurality of joint holes 147, so that the joint portion 143 of the first joint member 141 is screwed through the joint hole 147 to a first object 130 such as a frame of a motorcycle. As shown in Figure 8).

The pivoting device 10 according to the drawings further includes a linkage sleeve 213 disposed in the sleeve chamber 157 of the sleeve 149. The linkage sleeve 213 has a convex collar 217 having an outer diameter slightly smaller than the opening of the sleeve chamber 157. And a sleeve 215 having an outer diameter smaller than the circular tubular shape of the collar ring 217, so that the linkage sleeve 213 is separated from a first wall surface 231 located at the end surface of the collar ring 217 and a second wall surface 233 at the end surface of the sleeve 215. An accommodating space 235 is formed in the axial direction of the sleeve 149 by the second wall surface 233, and an engaging hole 237 extending from the first wall surface 231 along the axial direction of the sleeve 149 to the non-circular hole of the accommodating space 235 is formed. A ring groove 239 is formed in the surface of the casing 215 adjacent to the convex ring 217, and the interlocking sleeve 213 is placed in the mounting groove chamber 157 of the sleeve 149, and the first wall surface 231 of the interlocking sleeve 213 abuts against the side of the partition wall 159.

The pivoting device 10 further includes an end plug 191 pivotally mounted on the sleeve 149. The end plug 191 has a flange 193 having an outer diameter greater than the opening of the mounting slot 157 of the sleeve 149. The end plug 191 further includes A cylindrical sleeve 195 extends from the side surface of the flange 193 along the axial direction of the sleeve 149. The sleeve 195 has a spaced inner ring surface 199 and an outer annular surface 201, and the sleeve 195 is sleeved. Inner annulus 199 defines a space 19 7. The outer diameter of the socket 195 is slightly smaller than the inner diameter of the mounting groove 157 of the sleeve 149, and the opposite two convex portions 241 are formed on the outer annular surface 201 of the socket 195. The end plug 191 is also included by the flange 193. A shaft 203 is located on one side of the surface and located in the space 197 along the axial direction of the sleeve 149, and the length of the shaft 203 in the axial direction of the sleeve 149 is smaller than that of the socket 195. The shaft barrel 203 has a circular through hole 211, and the shaft barrel 203 further includes a surrounding wall 207 spaced apart from the through hole 211. The inner diameter of the inner surface 199 of the socket 195 of the end plug 191 is larger than the outer diameter of the outer sleeve 215 of the interlocking sleeve 213, and the outer diameter of the circumferential wall 207 of the shaft 203 of the end plug 191 is smaller than the inner diameter of the accommodating space 235 of the interlocking sleeve 213. The interlocking sleeve 213 and the end plug 191 can form a loose fit.

According to the drawing, the end plug 191 is sleeved in the mounting groove 157 of the sleeve 149, and the flange 193 of the end plug 191 is sealingly abutted against the second side 153 of the sleeve 149 (as shown in FIG. 3). The two convex portions 241 of the end plug 191 are inserted into the notches 243 of the sleeve 149, so that the end plug 191 cannot rotate relative to the sleeve 149, and the socket barrel 195 of the end plug 191 is located in the mounting groove of the sleeve 149. Between the inner ring wall 165 of the 157 and the casing 215 of the interlocking sleeve 213, and the shaft 203 is loosely fitted into the accommodating space 235 of the sleeve 215 of the interlocking sleeve 213. As shown in FIG. 3, the shaft barrel 203 forms a gap with the inner wall of the accommodating space 235, the second wall surface 233 forms a gap with the end plug 191 side, and the surface of the sleeve 215 of the interlocking sleeve 213 and the end plug 191. The inner ring surface 199 of the socket 195 forms a continuous gap, and the gap extends into the annular groove 239 on one side of the casing 215, and a series of continuous gaps are filled with damping oil, thereby utilizing damping oil. The viscous property allows the interlocking sleeve 213 to have a damping effect when rotated.

The pivoting device 10 according to the drawings includes a spring 52 coupled to the first coupling member 141, a spring 52, as in the first view, the spring 52 includes a first end 54 spaced along the axial direction of the sleeve 149. A second end 56. The spring 52 is received in the small diameter section 163 of the mounting space 155 of the sleeve 149, and the first end 54 of the spring 52 is embedded in the slot 46 of the sleeve 149, and the spring 5 2 The portion near the first end 54 is sleeved outside the shaft portion 167 (as shown in FIG. 3), and the second end 56 is adjacent to the installation space 155 and the first side surface 151. Please note that the spring 52 is at the first And the second ends 54, 56 are mounted in the sleeve 149 in a natural state that has not been twisted, so that the spring 52 has not yet generated an elastic force (as shown in Fig. 4).

The pivoting device 10 according to the drawings further includes a shaft 301 pivotally coupled to the first coupling member 141. As shown in the first figure, the shaft 301 includes a first segment 303 extending along the axial direction of the sleeve 149. And a second segment 305, and the outer diameter of the first segment 303 is slightly larger than the second segment 305, wherein the first segment 303 has a head end 304 having a circular cross section, and a second flat portion continuing to form a symmetric flat cut surface along the head end 304. The abutting portion 306, that is, the portion of the first segment 303 except the head end 304 is non-circular, the cross-sectional shape of the flat portion 306 is identical to the shape of the engaging hole 237 of the interlocking sleeve 213, and the second segment 305 has An end 307 having a non-circular cross section (consisting of a round rod having a symmetrical flat section), and a portion of the second section 305 except the end 307 has a circular cross section. The shaft 301 is pivotally disposed in the sleeve 149, and penetrates through the through hole 211 of the second end 305 toward the end plug 191, through the engaging sleeve 213, and through the shaft hole 169 of the shaft 167. And the spring 52 is inserted into the first side 151 of the sleeve 149, so that the circular end 304 of the shaft 301 is pivoted in the through hole 211 of the end plug 191, and the flat portion 306 is located in the engaging hole 237. And the circular portion of the second segment 305 is pivotally disposed in the shaft hole 169, and the end 307 of the second segment 305 is located outside the first side 151 of the sleeve 149 after passing through the spring 52. At this time, the shaft 301 The sleeve 149 can be rotated relative to the sleeve 149, and the engaging portion 306 can cooperate with the engaging hole 237 to simultaneously drive the interlocking sleeve 213 to rotate relative to the end plug 191, because the interlocking sleeve 213 and the end plug 191 are filled with damping oil. Therefore, the shaft 301 and the interlocking sleeve 213 generate a slow rotation with damping.

The pivoting device 10 according to the figures further includes a ratchet 58 pivotally mounted on the sleeve 149. The ratchet 58 has a toothed portion 6 formed by a plurality of one-way teeth. 0. The tooth portion 60 of the ratchet 58 includes a first surface 62 and a second surface 64 spaced apart along the axial direction of the sleeve 149. A cylindrical pivot portion 66 is sleeved by the second surface 64 of the tooth portion 60. The axial direction of the barrel 149 extends. The pivoting portion 66 includes a recess 68 extending from the end surface in the axial direction of the sleeve 149 but spaced apart from the first surface 62. A cylindrical inner sleeve 69 is defined by the tooth portion 60. The second surface 64 extends along the axial direction of the sleeve 149 in the space of the cavity 68 extending from the pivoting portion 66. A notch 72 is formed between the pivoting portion 66 and the second surface 64 of the tooth portion 60 and extends to the capacity. The groove 68, the ratchet 58 further includes a non-circular interlocking hole 70 extending from the first surface 62 in the axial direction of the sleeve 149 to the receiving groove 68, and the cross-sectional shape of the linking hole 70 and the second section 305 of the shaft 301 The cross-sectional shape corresponds to a bump 73 formed on the second surface 64 of the tooth portion 60 and abutting on one side of the notch 72.

The ratchet 58 is sleeved on the first side 151 of the sleeve 149. The end of the pivoting portion 66 of the ratchet 58 penetrates into the large diameter section 161 of the mounting space 155 of the sleeve 149, and the second surface of the tooth portion 60 of the ratchet 58 64 abuts the first side 151 of the sleeve 149, and the inner sleeve 69 of the ratchet 58 projects into the spring 52 from the second end 56 of the spring 52. The spring 52 is sleeved on the pivot portion near the second end 56. In the pocket 68 of 66 (as shown in Fig. 3), the second end 56 of the spring 52 is inserted into the notch 72 of the ratchet 58 and abuts against the projection 73 (when the spring 52 is in a free state that has not been twisted) And the end 307 of the second section 305 of the shaft 301 passes through the linking hole 70 of the ratchet 58 and a portion of the end 307 is located outside the first surface 62 of the ratchet 58 when the tab 73 of the ratchet 58 rests against the sleeve On the second retaining wall 181 of 149 (as shown in Figures 4 and 5), when the shaft 301 pivots about the axis of the sleeve 149, the interlocking ratchets 58 are pivoted together, and the projections 73 of the ratchet 58 are in the slots. The pivoting of the ball 177 away from the second retaining wall 181 and adjacent the first retaining wall 179 will twist the second end 56 of the spring 52, further causing the spring 52 to generate a resilient force for resetting, and the closer the bump 73 is When a retaining wall 179, the spring 52 lines produce stronger elastic force.

The pivoting device 10 further includes a first coupling member 141 according to the drawings. A second coupling member 80 pivotally connected to the second coupling member 80 has a connecting wall 82 and a first end wall 84A connected to the connecting wall 82 and spaced along the axial direction of the sleeve 149. The second end walls 84A, 84BB, the first end wall 84A has a coupling hole 85, the first and second end walls 84A, 84BB have a pivot hole 86, the connecting wall 82 forms two locking holes 90, and the two locking holes 90 A pair of positioning holes 75 and two fixing holes 76 are formed. The connecting wall 82 has an end surface 98 formed at a lower edge between the first and first first and second end walls 84A, 84BA, 84B, and the second coupling member 80 The first groove 92 and the second groove 94 extending from the end surface 98 toward the connecting wall 82, wherein the first groove 92 is located between the first end wall 84B and the second groove 94, and the second recess The slot 94 is adjacent to the first end wall 84A.

The first end wall 84A of the second coupling member 80 is adjacent to the first side surface 151 of the first coupling member 141, and the first and second end walls 84A, 84BB are adjacent to the second side surface 153, so that the sleeve 149 of the first coupling member 141 Located between the first and first first and second end walls 84A, 84BA, 84B, and the coupling hole 85 of the first end wall 84A of the second coupling member 80 is pivotally connected to the end 307 of the shaft 301, the first end wall The coupling hole 85 of the 84B is pivotally connected to the head end 304, and the end 307 of the shaft 301 passes out of the coupling hole 85 of the first end wall 84A and is fastened with a fastener 309 such as a C-shaped buckle to make the shaft 301 The axial displacement of the sleeve 149 is not possible, and the first end wall 84A of the second coupling member 80 abuts against the first surface 62 of the ratchet 58 and the first end wall 84B abuts against the surface of the flange 193 of the end plug 191 ( As shown in FIG. 3, in addition, the first end 54 of the spring 52 is aligned with the first groove 92 of the second coupling member 80, the second end 56 of the spring 52, and the projection 73 of the ratchet 58 and the second coupling member 80. The second grooves 94 are aligned such that the second coupling member 80 can be pivoted about the axis defined by the shaft 301 between the open position (as shown in Figures 4 and 5) or the closed position (as shown in Figure 9). Turn, it should be noted that In such a combined state, the second coupling member 80 has not been coupled with the ratchet 58 so that the second coupling member 80 is not positioned, and can be freely opened in the open position (as shown in Figs. 4 and 5) and in the closed position. (as shown in Figure 9) pivoting between. In addition The locking hole 90 of the second coupling member 80 can be screwed to a second member 132 such as a seat cushion of a motorcycle (as shown in Figs. 8 and 9).

The pivoting device 10 includes a triangular fixing member 122 detachably coupled to the ratchet 58. The fixing member 122 has a front end surface 123 and an abutting surface 124, and is connected to one end of the abutting surface 124. A circular arc-shaped engaging surface 126 is formed on the engaging surface 126 by a plurality of latching teeth. The fixing member 122 further includes a screw hole 125 extending from the front end surface 123 to the abutting surface 124. A bolt 127 is provided in the 125 inner screw.

The fixing member 122 is used to fix the state in which the spring 52 is twisted (as shown in FIG. 5), and the second coupling member 80 is pivoted by the elastic force of the spring 52 being twisted. Such a design contributes to the pivoting device. 10 Assembly, in detail, when the components of the pivoting device 10 are mounted, since the spring 52 does not need to be twisted in advance, the special jig torsion spring 52 can be eliminated from being mounted in the first and second coupling members 20, 80. Steps, and all components except the fixing member 122 of the pivoting device 10 can be quickly assembled, and all the components other than the fixing member 122 are installed before the fixing member 122 is mounted on the tooth portion 60 of the ratchet 58 and the fixing member is fixed. The abutting surface 124 of the 122 abuts against the surface of the connecting wall 82 of the second joint member 80 (as shown in Fig. 13), and then rotates the shaft 301 with the tool 301 at the end 307 of the shaft 301 outside the first end wall 84A ( For example, the tip end 307 is rotated by the needle-nosed pliers. When the shaft 301 is rotated, the ratchet 58 is driven to pivot the projection 73 about the axis of the sleeve 149 away from the second retaining wall 181 (ie, toward the spring 52). The opposite end of the spring end of the second end 56 is reversed), further twisting the second end 56 of the spring 52, The spring 52 generates a resilient force for resetting (as shown in FIG. 8). Due to the design of the one-toothed teeth of the tooth portion 60 of the ratchet wheel 58, the tooth portion 60 of the ratchet wheel 58 pushes the fixing member 122 during the rotation of the ratchet wheel 58. The latching teeth 128 are disengaged from the tooth portion 60, so that the ratchet 58 can pivot the projection 73 toward the first retaining wall 179 in a state in which the fixing member 122 is mounted. When the spring 52 is twisted to generate an appropriate elastic force, the removal is applied to the shaft. When the force on 301, the spring force of the spring 52 The force of pivoting the projection 73 of the ratchet 58 toward the second retaining wall 181 causes the toothing 60 of the ratchet 58 to engage the latch 128 of the retaining member 122 to further position the retaining member 122, thus causing the spring 52 to pass through the ratchet 58. And the fixing member 122 transmits the elastic force to the second coupling member 80 while biasing the second coupling member 80 to the open position. In addition, the second recess 94 of the second coupling member 80 provides a space for the torsion spring 52 to pass through the projection 73 of the ratchet 58 and the second end 56 of the spring 52 such that the second end 56 of the spring 52 has a larger space to be twisted. .

The invention further includes a bumper 12 mounted on the pivoting device 10 for reducing the second coupling member 80 of the pivoting device 10 after the second article 132 is pivoted from the closed position to the open position because The inertia and the reaction force cause the second object 132 to reciprocate a plurality of times. The buffer 12 includes a base 323, a buffer member 395 disposed in the base 323, and a force force for pushing against the buffer member 395. Shelf 373.

Referring to FIGS. 1A and 1B, the base 323 has a spaced outer end surface 325 and an inner end surface 327, and a first end surface 333 and a second extending between the inner and outer end surfaces 327 and 325. The end surface 335 and a third end surface 329 and a fourth end surface 331 extending between the first and second end surfaces 333, 335 and connecting the inner and outer end surfaces 327, 325. The pedestal 323 includes a mounting groove 338 extending from the inner end surface 327 toward the outer end surface 325 but spaced apart from the outer end surface 325. The mounting groove 338 has an accommodating space 353, and the accommodating space 353 includes a first portion adjacent to the first end surface 333. a stop surface 357 and a second stop surface 371 adjacent to the second end surface 335, the mounting groove 338 further includes a slide 339 extending from the second stop surface 371 to the first end surface 333 and extending to the inner end surface 327, at the third end surface Each of the 329 and the fourth end surface 331 has a positioning portion 337 which protrudes outwardly. Each of the positioning portions 337 has a hole 351 therein. The second end surface 335 has a fixing portion 355 protruding outwardly. The fixing portion 355 One surface has a positioning post 359.

The shelf 373 forms a sheet-like structure, and the shelf 373 is relatively spaced A front surface 375 and a rear surface 377 form an end 379 on the lower edge of the shelf 373. The upper edge of the shelf 373 forms a convex pressing portion 391. The upper end of the pressing portion 391 forms an active surface 393, and an active surface. Abutting surface 398 separated by 393, the shelf 373 further includes a plurality of recesses 392 formed on the active surface 393. Each recess 392 separates the active surface 393 into three portions, and the size of each recess 392 is changed. The surface area of the active surface 393 can be varied. The pressing portion 391 of the frame 373 is placed in the accommodating space 353 of the base 323, the abutting surface 398 abuts against the first blocking surface 357, the working surface 393 is spaced apart from the second blocking surface 371, and the shelf 373 The base 323 is passed through the slide 339 so that the end 379 is located outside the first end surface 333.

The cushioning member 395 is formed by a rectangular block made of a material having elasticity or cushioning effect, such as rubber or silicone rubber. The cushioning member 395 has a first bearing surface 397 and a second bearing surface 399 which are spaced apart from each other. The cushioning member 395 is disposed in the accommodating space 353 of the base 323 and located between the active surface 393 of the bracket 373 and the second blocking surface 371 of the base 323. The first bearing surface 397 of the cushioning member 395 abuts the active surface. 393, the second bearing surface 399 abuts against the second blocking surface 371.

The base 323 on which the bracket 373 and the cushioning member 395 are attached is fixed on the connecting wall 82 of the second coupling member 80 and adjacent to the side of the sleeve 149 of the first coupling member 141, and the positioning post 359 of the base 323 is embedded. The alignment holes 75 are respectively aligned with the respective fixing holes 76. The two screws are locked into the holes 351 through the connecting wall 82 to fix the base 323. The frame plate 373 and the buffer member 395 are bounded by the connecting wall 82. Within the receiving space 353 of the seat 323, the end of the end 379 of the shelf 373 is located within the recess 152 of the first coupling member 141 such that the bumper 12 pivots with the second coupling member 80 between the open position and the closed position.

For convenience of explanation, it is assumed that the pivoting device 10 is installed between the seat cushion of the motorcycle and the vehicle body, and the second coupling member 80 is located at the open position (when the seat cushion of the motorcycle is in an open state), such a buffer End of 12 is 379 It abuts against the abutment surface 183 of the first coupling member 141 (as shown in Fig. 9). When the force is applied to the second object 132, the second object 132 will drive the second coupling member 80 to pivot about the axis defined by the shaft 301 from the open position (as shown in FIG. 8) to the closed position (as shown in FIG. 10). As shown, the connecting wall 82 of the second coupling member 80 pushes the fixing member 122, further causing the fixing member 122 to push the ratchet 58 to rotate, and the ratchet 58 further pivots the second end 56 of the spring 52. Further, the ratchet 58 is passed through the shaft 301. The driving sleeve 213 is pivoted to pivot the second coupling member 80 and the second member 132 from the open position to the closed position to overcome the elastic force of the spring 52 and the damping of the linkage sleeve 213 relative to the sleeve 149, thus the second combination The member 80 is capable of slow rotation, at which time the end 379 of the bumper 12 pivots with the second coupling member 80 in a direction away from the abutment surface 183 (as shown in Fig. 11).

When the second coupling member 80 is in the closed position (as shown in FIG. 10), the pivoting device 10 can automatically open the seat cushion after being unlocked, and in detail, when the seat cushion is unlocked, the second spring 52 The end 56 pushes the ratchet 58 to pivot the second coupling member 80 from the closed position (as shown in Fig. 10) to the open position (as shown in Fig. 8), while the shaft 301 drives the interlocking sleeve 213 to rotate together. The elastic force generated by the spring 52 needs to overcome the damping generated when the linkage sleeve 213 is rotated and the weight of the second object 132, so that the second object 132 such as the seat cushion can be opened at an appropriate speed to avoid an accident that is too fast and an accident occurs. The first recess 92 of the second coupling member 80 provides a space through which the first end 54 of the spring 52 passes when the second coupling member 80 is pivoted from the open position to the closed position. In addition, when the second coupling member 80 interlocks the second object 132 to pivot from the closed position to the open position, the end 379 of the shelf 373 of the buffer 12 abuts against the abutting surface 183 of the first coupling member 141, and the second coupling member The inertia of the 80 and the second article 132 due to the pivoting will continue to pivot away from the closed position (ie, beyond the open position), and the base 323 of the bumper 12 continues to displace with the second coupling member 80, but the frame The plate 373 is blocked by the abutting surface 183, so that the acting surface 393 of the frame 373 is pressed against the cushioning member 395 to be elastically deformed (as shown in Fig. 12), and thus the cushioning member 395 cancels the inertial force generated by the pivoting of the second coupling member 80 and the second member 132, further resetting the second coupling member 80 and the second member member 132 toward the closed position to the open position (as shown in FIG. 9).

The damper 12 is used to reduce the pivoting of the second object 132 fixed to the second coupling member 80 when the second object 132 is pivoted from the closed position to the open position, because the inertia and the reaction force cause the second object 132 to pivot to the open position. The number of times (about to reduce the reciprocating motion of the second object 132 such as the locomotive seat cushion to 1-2 times) can effectively reduce the probability of damage with the first object 130 and the first coupling member 141.

In addition, the second end 56 of the torsion spring 52 is rotated by the rotating ratchet 58 to adjust the elastic force generated by the spring 52. In detail, the weight of the second object 132 fixed to the second coupling member 80 affects the need for the spring 52 to be applied to the second member 52. The elastic force of the coupling member 80, because when the spring 52 is too elastic, the pivoting speed of the second object 132 may be too fast and may hurt the user. When the spring 52 is too weak, the spring 52 cannot be used by the spring 52. The second coupling member 80 pushes the second object 132 to pivot. Therefore, when the weight of the second object 132 is found to be heavy after installing the pivoting device 10 of the present invention, the second member 132 can be directly transmitted through the shaft 301 by a tool such as a needle-nosed pliers. The end 307 rotates the ratchet 58 so that the second end 56 of the spring 52 can be twisted at a larger angle (the projection 73 is pivoted closer to the first retaining wall 179 as indicated by the phantom line in Fig. 8), so that the spring 52 generates enough The elastic force supporting the second coupling member 80 to pivot at an appropriate speed can quickly reinforce the spring force of the spring 52 without disassembling the pivoting device 10. Conversely, when the pivoting device 10 of the present invention is installed and it is found that the second object 132 combined with the second coupling member 80 is light in weight, the ratchet 58 is reversely rotated through the end 307 of the shaft 301 by a tool such as a needle-nosed pliers. Pushing the tooth portion 60 away from the fixing member 122, and then removing the fixing member 122, the second end 56 of the spring 52 can be completely released (the ratchet wheel 58 rotates toward the elastic direction of the second end 56 of the spring 52), so that the spring 52 is formed. After the untwisted free state, the fixed block 122 is again coupled to the tooth portion 60 of the ratchet 58 and the ratchet 58 is rotated by the end 307 of the shaft 301 with a tool such as a needle-nosed pliers. To the first retaining wall 179, the spring 52 can also be quickly adjusted to produce a suitable spring force to prevent the second member 132 from moving too fast when the second coupling member 80 is pivoted from the closed position to the open position.

When the spring 52 is not directly adjusted by the shaft 301 to the proper spring force, the spring force of the spring 52 is accurately adjusted by rotating the bolt 127. Specifically, it is assumed that the ratchet 58 rotates the adjacent teeth of the tooth portion 60. The angle of separation (9°) tightening the spring 52 causes the spring force to be too large, and the angle at which the ratchet 58 reversely rotates the adjacent teeth of the tooth portion 60 (9°) to relax the spring 52 causes the spring force to be too small, indicating Adjusting the angle of the angle of one tooth of the rotating tooth portion 60 of the ratchet 58 is too large. At this time, the second end 56 of the spring 52 may be first biased by the ratchet 58 to a position where the elastic force is slightly insufficient (as shown in FIG. 13). In this state, the abutting surface 124 of the fixing member 122 is still abutted against the connecting wall 82 of the second coupling member 80, and then the bolt 127 is rotated by a hand tool such as a hexagonal wrench, so that the bolt 127 is located at the fixing member. One end of the abutting surface 124 of the 122 is disposed outside the abutting surface 124 and abuts against the connecting wall 82 of the second coupling member 80, such that the fixing member 122 is pressed by the bolt 127 to the connecting wall away from the second coupling member 80. One end of the 82 pivots the ratchet 58 to pivot, and the control bolt 127 extends out of the fixing member 12 The length of the abutment surface 124 adjusts the angle at which the ratchet 58 rotates, so that the rotation of the ratchet 58 can be controlled to be smaller than the angle (9°) of the adjacent teeth of the tooth portion 60, so that the spring 52 can be accurately adjusted. Appropriate elasticity (as shown in Figure 14).

In addition, the bolt 127 can be used not only to precisely adjust the spring force of the spring 52, but also to adjust the spring 52 when the pivoting device 10 is mounted between a body such as a locomotive and a seat cushion, and it is not easy to use the tool to rotate the shaft 301. The elasticity, in detail, when the pivoting device 10 is installed between a vehicle body such as a locomotive and a seat cushion, the end 307 of the shaft 301 may be blocked by the body or seat cushion of the locomotive, and thus it is not easy to utilize such as a tip. The end 307 of the tool gripping shaft 301, such as a mouth pliers, rotates the ratchet 58, but in this state the bolt 127 is still exposed, so that the ratchet 58 can be easily adjusted by turning the bolt 127 with a hand tool such as a hex wrench, and it is worthwhile. It is mentioned that the bolt 127 It is also possible to drive the ratchet 58 to rotate beyond the angle (9°) at which the adjacent teeth of the tooth portion 60 are spaced apart, so that the flexibility of the adjustment spring 52 is increased.

The ratchet 58 of the present invention is designed such that the spring 52 can be assembled without being twisted, and the time for the operator to assemble the pivoting device 10 can be greatly reduced. In addition, the design of the end plug 191 and the interlocking sleeve 213 has a damping effect when the second coupling member 80 rotates, and the manufacturer can easily increase or decrease the length of the sleeve 215 of the interlocking sleeve 213 by changing the length of the sleeve 215 relative to the interlocking sleeve 213. The contact area with the sleeve 149 can easily control the damping effect generated when the interlocking sleeve 213 is pivoted to optimize the adjustment of the weight of the different second object 132 coupled to the second coupling member 80. .

The pivoting device 10 of the present invention is mounted on the locomotive, and the locomotive is generally made of a plastic material when it is locked with the first coupling member 141, so it is quite easy to generate too many sloshing when the cushion is opened, the locomotive and the locomotive The first joint member 14 is easily damaged when it is locked, and the number of times the seat cushion is reciprocated after the buffer 12 of the present invention is installed is reduced to 1 or 2 times to reduce the lock of the locomotive and the first joint member 14. The probability of damage.

The fixing member 122 of the present invention can be used to drive the ratchet 58 to rotate, thereby achieving the purpose of accurately increasing the spring force of the spring 52, so that the spring force of the spring 52 can be adjusted to the state that best meets the actual demand. In addition, if the pivoting device 10 of the present invention is installed between the body of the locomotive and the seat cushion, the rotation of the ratchet 58 can be adjusted directly by rotating the bolt 127, and the rotation angle of the ratchet 58 can be made according to the length of the bolt 127. Adjust it precisely. In the state in which the shaft 301 is not easily rotated by the shaft 301 to adjust the spring force of the spring 52, the rotation bolt 127 can also be used to drive the ratchet 58 to rotate more than the angle between the adjacent teeth of the tooth portion 60, so that the elastic force of the pivoting device 10 is adjusted. More convenient.

The above basic teachings have been described, and many extensions and variations will be apparent to those of ordinary skill in the art. For example, the size or number of the recesses 392 of the pressing portion 391 may vary, thereby changing the surface area of the active surface 393, that is, when the size of the recess 392 is larger or the number is shown in the drawing. For a long time, the surface area of the active surface 393 becomes small. When the frame 373 receives the same amount of pressing force, the buffer member 395 will have a large elastic deformation due to the smaller surface area of the acting surface 393. Similarly, if the recess 392 is concave 392 If the size of the active surface 393 is larger than that shown in the figure, the surface area of the active surface 393 becomes larger, and the buffer block may have less elastic deformation due to the larger surface area of the active surface 393, thus The surface area of the active surface 393 is used to adjust the ability of the damper 12 of the present invention to absorb or counteract impact forces. The mounting groove 338 of the base 323 may not include the slide 339. For example, the accommodating space 353 of the mounting groove 338 extends along the first end surface 333, and the accommodating space 353 is parallel to the surface of the outer end surface 325 or the third or The surfaces of the fourth end faces 329, 331 are provided with grooves, and the bumps are provided on the surface of the corresponding plates of the frame plate 373 so that the bumps are embedded in the grooves, and the pressing portion 391 of the frame plate 373 can also be restricted. It slides in the accommodating space 353 and does not detach from the base 323. Alternatively, the cushioning member 395 may not be a solid rubber block or a rubber block. For example, the cushioning member 395 may be a compression spring mounted between the base 323 and the shelf 373. Or the shape of the cushioning member 395 may be a shape other than a rectangular body, for example, the cushioning member 395 may be a sphere or other geometric shape.

In addition, the buffer 12 of the present invention can be installed not only on the pivoting device 10 shown in the drawings, but the buffer 12 of the present invention can also be mounted with any type of pivoting device 10, but is not limited to a commercially available pivoting device. The device 10 (or hinge), such as the pivoting device 10 of the present invention, may not include the spring 52 and the ratchet 58, although in the absence of the spring 52 and the ratchet 58, the second coupling member 80 cannot interlock the second member 132 automatically. Opening to the open position, but the damper 12 of the present invention still has the effect of absorbing the impact force when the second coupling member 80 is displaced from the closed position to the open position; or the pivoting device 10 of the present invention may not include the interlocking sleeve 213, such The second coupling member 80 does not have a damping effect when the second object member 132 is pivoted to the open position by the closed position, but the damper 12 of the present invention provides an effect of absorbing the impact force.

The invention as disclosed in the specification may be embodied in other specific forms without departing from the spirit or scope of the invention. It is pointed out that the embodiments disclosed in the specification are to be considered as illustrative and not limiting. The scope of the present invention is defined by the scope of the appended claims, and is not intended to

10‧‧‧ pivoting device

12‧‧‧ buffer

52‧‧‧ Spring

46‧‧‧ card slot

54‧‧‧ first end

56‧‧‧ second end

58‧‧‧ratchet

60‧‧‧ teeth

62‧‧‧ first surface

64‧‧‧second surface

66‧‧‧Pivot Department

68‧‧‧ 容容

69‧‧‧Inner bushing

70‧‧‧Linking holes

72‧‧‧ gap

73‧‧‧Bumps

75‧‧‧ alignment hole

76‧‧‧Fixed holes

80‧‧‧Second joint

82‧‧‧Connected wall

84A‧‧‧First end wall

84B‧‧‧Second end wall

85‧‧‧Combination holes

86‧‧‧ pivot hole

90‧‧‧Keyhole

92‧‧‧First groove

94‧‧‧second groove

98‧‧‧ end face

122‧‧‧Fixed parts

124‧‧‧Abutment

123‧‧‧ front face

125‧‧‧ screw holes

126‧‧‧ card joint

127‧‧‧ bolt

End of 127A‧‧

128‧‧‧ card teeth

130‧‧‧First object

132‧‧‧Second object

141‧‧‧ first joint

143‧‧‧Combination Department

145‧‧‧Extension

147‧‧‧Combination hole

149‧‧‧ sleeve

151‧‧‧ first side

152‧‧‧ recess

153‧‧‧ second side

154‧‧‧ peripheral surface

155‧‧‧Installation space

157‧‧‧Installation chamber

159‧‧‧ partition wall

161‧‧‧ Large diameter section

163‧‧‧Small path section

165‧‧‧ inner ring wall

167‧‧‧Axis joint

169‧‧‧Axis hole

177‧‧‧ channel

179‧‧‧ first barrier

181‧‧‧ second barrier

183‧‧‧Abutment

191‧‧‧End plug

193‧‧‧Flange

195‧‧‧ sockets

197‧‧‧ Space

199‧‧‧ Inner torus

201‧‧‧ outer annulus

203‧‧‧ shaft tube

207‧‧‧ surrounding walls

211‧‧‧through hole

213‧‧‧ linkage sets

215‧‧ ‧ shell

217‧‧‧ convex ring

231‧‧‧ first wall

233‧‧‧ second wall

235‧‧‧ accommodating space

237‧‧‧Snap hole

239‧‧‧ Ring groove

241‧‧‧ convex

243‧‧‧ Missing slot

301‧‧‧ shaft

303‧‧‧ first paragraph

304‧‧‧ head end

305‧‧‧ second paragraph

306‧‧

End of 307‧‧

309‧‧‧fasteners

323‧‧‧Base

325‧‧‧Outer end face

327‧‧‧ inner end face

329‧‧‧3rd end face

331‧‧‧fourth end face

333‧‧‧ first end face

335‧‧‧second end face

337‧‧‧ Positioning Department

338‧‧‧Installation slot

339‧‧‧Slide

351‧‧‧ hole

353‧‧‧ accommodating space

355‧‧‧ fixed department

357‧‧‧ first stop

359‧‧‧Positioning column

371‧‧‧second stop

373‧‧‧ ‧ boards

375‧‧‧ positive

377‧‧‧ back

End of 379‧‧‧

391‧‧‧Resistance Department

392‧‧‧ recess

393‧‧‧Action surface

395‧‧‧ cushioning parts

397‧‧‧First bearing

398‧‧‧Abutment

399‧‧‧second bearing

FIG. 1 is an exploded perspective view of a pivoting device with a fine adjustment function according to the present invention.

Fig. 1A is an exploded perspective view of the damper of the present invention.

Fig. 1B is a perspective view of the damper of the present invention.

2 is a perspective assembled view of the pivoting device with the fine adjustment function of the present invention.

Figure 3 is a cross-sectional view taken along line 3-3 of Figure 2;

Figure 4 is a cross-sectional view taken along line 4-4 of Figure 3.

Fig. 5 is a cross-sectional view taken along line 5-5 of Fig. 3.

Figure 6 is a cross-sectional view taken along line 6-6 of Figure 3.

Fig. 7 is a plan view of Fig. 2.

Figure 8 is a cross-sectional view taken along line 8-8 of Figure 7.

Figure 9 is a cross-sectional view taken along line 9-9 of Figure 7.

Fig. 10 is a cross-sectional view showing the action of pivoting the second engaging member from the open position to the closed position in the state of Fig. 8.

Fig. 11 is a cross-sectional view showing the action of the second coupling member being displaced from the open position to the closed position in the state of Fig. 9.

Fig. 12 is a cross-sectional view showing the action of the damper when the second coupling member is pivoted from the open position to the end remote from the closed position as shown in Fig. 9.

Figure 13 is a cross-sectional view taken along line 13-13 of Figure 7.

Fig. 14 is a state diagram of the state in which the bolt is accurately tightened in the state shown in Fig. 13.

10‧‧‧ pivoting device

12‧‧‧ buffer

46‧‧‧ card slot

52‧‧‧ Spring

54‧‧‧ first end

56‧‧‧ second end

58‧‧‧ratchet

60‧‧‧ teeth

62‧‧‧ first surface

64‧‧‧second surface

66‧‧‧Pivot Department

68‧‧‧ 容容

69‧‧‧Inner bushing

70‧‧‧Linking holes

72‧‧‧ gap

73‧‧‧Bumps

75‧‧‧ alignment hole

76‧‧‧Fixed holes

80‧‧‧Second joint

82‧‧‧Connected wall

84A‧‧‧First end wall

84B‧‧‧Second end wall

85‧‧‧Combination holes

86‧‧‧ pivot hole

90‧‧‧Keyhole

92‧‧‧First groove

94‧‧‧second groove

98‧‧‧ end face

122‧‧‧Fixed parts

123‧‧‧ front face

124‧‧‧Abutment

125‧‧‧ screw holes

126‧‧‧ card joint

127‧‧‧ bolt

End of 127A‧‧

128‧‧‧ card teeth

141‧‧‧ first joint

143‧‧‧Combination Department

145‧‧‧Extension

147‧‧‧Combination hole

149‧‧‧ sleeve

151‧‧‧ first side

152‧‧‧ recess

153‧‧‧ second side

154‧‧‧ peripheral surface

155‧‧‧Installation space

157‧‧‧Installation chamber

159‧‧‧ partition wall

161‧‧‧ Large diameter section

163‧‧‧Small path section

165‧‧‧ inner ring wall

167‧‧‧Axis joint

169‧‧‧Axis hole

177‧‧‧ channel

179‧‧‧ first barrier

181‧‧‧ second barrier

183‧‧‧Abutment

191‧‧‧End plug

193‧‧‧Flange

195‧‧‧ sockets

197‧‧‧ Space

199‧‧‧ Inner torus

201‧‧‧ outer annulus

203‧‧‧ shaft tube

207‧‧‧ surrounding walls

211‧‧‧through hole

213‧‧‧ linkage sets

215‧‧ ‧ shell

217‧‧‧ convex ring

231‧‧‧ first wall

233‧‧‧ second wall

235‧‧‧ accommodating space

237‧‧‧Snap hole

239‧‧‧ Ring groove

241‧‧‧ convex

243‧‧‧ Missing slot

301‧‧‧ shaft

303‧‧‧ first paragraph

304‧‧‧ head end

305‧‧‧ second paragraph

306‧‧

End of 307‧‧

309‧‧‧fasteners

323‧‧‧Base

325‧‧‧Outer end face

327‧‧‧ inner end face

359‧‧‧Positioning column

373‧‧‧ ‧ boards

End of 379‧‧‧

Claims (6)

A pivoting device with a fine adjustment function, comprising a first coupling member (141) having a sleeve (149), the sleeve (149) comprising a first side (151) along the sleeve (149) and a first The two sides (153), the sleeve (149) further includes a peripheral surface (154) connected between the first and second sides (151, 153), and an installation space (155) is formed on the sleeve (149) The first side surface (151), a mounting groove chamber (157) is formed on the second side surface (153) of the sleeve (149), and a partition wall (159) is formed between the installation space (155) and the mounting groove chamber (157). The partition wall (159) includes a shaft hole (169) communicating with the installation space (155) and the installation groove chamber (157), and a card slot (46) extends from the first side surface (151) toward the second side surface (153) but The second side surface (153) is spaced apart, and the first joint member (141) is to be fixed on a first object (130); a shaft (301) is pivotally connected to the first joint member (141). The shaft (301) includes a first section (303) and a second section (305), and the second section (305) of the shaft (301) has a non-circular end (307), the shaft (301) The first section (303) is pivotally connected to the shaft hole (169) of the sleeve (149), and the end (307) of the shaft (301) is located at the sleeve (149) a side (151) outside; a spring (52) coupled to the first coupling member (141), the spring (52) includes a first end (54) and a second end (56), the spring (52) Placed in the mounting space (155) of the sleeve (149) and located at the periphery of the shaft (301), the first end (54) of the spring (52) is embedded in the slot (46) of the sleeve (149), the second The end (56) is located outside the mounting space (155) and the first side (151); a second coupling member (80) is pivotally connected to the first coupling member (141), and the second coupling member (80) has a connection Wall (82), and the connecting wall (82) connecting the first and second end walls (84A, 84B), the first end wall (84A) of the second coupling member (80) is pivotally connected to the end (307) of the shaft (301) and located at the spring ( 52) The outer side of the second end (56), the second end wall (84B) is pivotally connected to the first section (303) of the shaft (301) and outside the second side (153) of the sleeve (149), The second joint member (80) is disposed around the axial direction of the sleeve (149) at a closed position of the joint wall (82) away from the first joint member (141) and a closed position of the joint wall (82) adjacent to the first joint member (141). For pivoting, the second coupling member (80) is to be fixed to a second member (132); a ratchet (58) is pivotally mounted on the sleeve (149), and the ratchet (58) includes a tooth portion (60) formed by a plurality of one-way teeth, the ratchet wheel (58) further comprising a linkage hole (70) extending along an axial direction of the sleeve (149), and the ratchet wheel (58) has a notch (72), The ratchet wheel (58) is pivoted on the first side surface (151) of the sleeve (149), and the end (307) of the shaft rod (301) is sleeved and rotated together with the linkage hole (70) of the ratchet wheel (58), and the spring (52) The second end (56) is engaged with the notch (72) of the ratchet (58) such that the spring (52) fits between the sleeve (149) and the ratchet (58) in a natural state that is not twisted. When the ratchet (58) rotates, the first end (54) of the spring (52) remains stationary, and the second end (56) is twisted by the ratchet (58); a fixing member (122) is detachably coupled The ratchet (58) is fitted, and the fixing member (122) includes a front end surface (123) and an abutting surface (124), and a latching surface (126) connected to one end of the abutting surface (124). A plurality of latches (128) formed on the teeth are formed on the engaging surface (126), and the fixing member (122) further includes a screw hole (125) extending from the front end surface (123) to the abutting surface (124); The bolt (127) is screwed into the screw hole (125) of the fixing member (122), and the bolt (127) includes an end (127A) adjacent to the abutting surface (124) of the fixing member (122); when the shaft is rotated (301), the shaft (301) is linked to the ratchet (5) 8) twisting the second end (56) of the spring (52) to cause the spring (52) to generate an elastic force, and then attaching the fixing member (122) to the tooth portion (60) of the ratchet (58) and the second coupling member Between the connecting walls (82) of (80), the abutting surface (124) of the fixing member (122) abuts against the connecting wall (82) of the second coupling member (80), the engaging teeth (128) and the ratchet ( 58) The tooth portion (60) is fitted such that the second end (56) of the spring (52) pushes the ratchet (58) against the fixing member (122), and the fixing member (12) presses against the connecting wall (82). The positioning second coupling member (80) is located in the open position; when the second coupling member (80) is biased to the open position by the spring (52), the bolt (127) is rotated, and the end (127A) of the bolt (127) is extended. The abutting surface (124) of the fixing member (122) abuts against the connecting wall (82) of the second coupling member (80), causing the abutting surface (124) of the fixing member (122) and the second coupling member ( 80) the connecting wall (82) is spaced apart, the ratchet (58) further twists the second end (56) of the spring (52), and the increasing spring (52) produces an elastic force biasing the second coupling member (80); After the second coupling member (80) is biased to the open position by the spring (52), the second coupling member (80) is oriented about the axial direction of the sleeve (149) toward the first coupling member (141). When rotating, the fixing member (122) rotates the ratchet (58) together with the shaft (301), causing the second end (56) of the ratchet (58) torsion spring (52) to cause the second coupling member (80) to be reset to The elasticity of the open position. The pivoting device with fine adjustment function according to claim 1, wherein the first coupling member (141) further comprises an abutting surface (183) formed on the peripheral surface (154), comprising: a base (323), fixed on the connecting wall (82) of the second joint member (80), the base (323) includes a spaced inner end surface (327) and an outer end surface (325), the base (323) The utility model comprises a mounting groove (338) formed on the inner end surface (327), and the base (323) The inner end surface (327) abuts against the connecting wall (82) of the second joint member (80); a plate (373) that is slidably coupled to the mounting groove (338) of the base (323), the shelf plate ( 373) includes an end (379) and a pressing portion (391) spaced apart from the end (379), the pressing portion (391) having an active surface (393) and an abutting surface (398), the pressing portion (391) is located in the mounting groove (338), and the end (379) is located outside the base (323). When the second object (80) is in the open position, the end (379) of the shelf (373) is abutted against On the abutting surface (183) of the first coupling member (141), when the second member (80) is not in the open position, the end (379) of the shelf (373) is spaced apart from the abutting surface (183); The cushioning member (395) is installed between the mounting groove (338) of the base (323) and the acting surface (393) of the shelf plate (373); when the second coupling member (80) is displaced from the closed position to the open position Thereafter, the end (379) of the shelf (373) is pressed by the first bonding member (141), causing the acting surface (393) of the mounting plate (373) to deform the compression buffer member (395) to absorb the second bonding member (80). a partial inertial force generated by the displacement from the closed position to the open position. The pivoting device with fine adjustment function according to claim 2, wherein the shelf (373) comprises a front surface (375) and a back surface (377), and the pressing portion (391) is convexly formed on the front surface ( 375), the pressing portion (391) includes an abutting surface (398) between the active surface (393) and the end (379), the base (323) including a first end surface (333) and the first end surface (333) a second end face (335) spaced apart, the mounting groove (338) including an accommodating space formed on the inner end face (327) having a first stop face (357) adjacent to the first end face (333) (353), the accommodating space (353) includes a second blocking surface (371) adjacent to the second end surface (335), and the mounting groove (338) further includes a first damper surface (357) extending to the first end surface (333) and extending to a slide (339) of the inner end surface (327), the shelf (373) is disposed on the outer side of the first end surface (333) through the slide (339); when the buffer member (395) When the frame plate (373) is not compressed and elastically deformed, the abutment surface (398) of the shelf plate (373) abuts against the first barrier surface (357), and when the buffer member (395) is supported by the shelf plate (373) When the pressing is elastically deformed, the abutting surface (398) of the shelf (373) is separated from the first blocking surface (357). The pivoting device with fine adjustment function according to claim 2, wherein the pressing portion (391) of the shelf (373) includes two recesses (392) formed on the active surface (393), so that the active surface ( 393) Easy to compress the cushioning member (395). The pivoting device with fine adjustment function according to claim 4, wherein the sleeve (149) further comprises a channel (177) formed on the first side (151), the channel (177) comprising a sleeve (149) an axially spaced apart first barrier wall (179) and a second barrier wall (181), the ratchet (58) including a pivot pivotally disposed within the mounting space (155) of the sleeve (149) a portion (66), and a bump (73) is formed between the outer peripheral surface of the pivot portion (66) of the ratchet (58) and the second surface (64) and adjacent to the notch (72), the bump (73) ) is located in the channel (177), when the bump (73) abuts against the second barrier (181), the second end (56) of the spring (52) is in a natural state that is not twisted, when the bump (73) When pivoting away from the second retaining wall (181) and close to the first retaining wall (179), the second end (56) of the spring (52) is twisted to generate an elastic force, and the closer the bump (73) is The stronger the spring force generated by the first retaining wall (179) spring (52). The pivoting device with fine adjustment function according to claim 1, wherein the first coupling member (141) further comprises a second side (153) formed on the second side (153) And a slot (243) of the mounting slot (157), the shaft (301) includes a flat portion (306) formed on the first segment (303), including: an end plug (191), fixed to the sleeve On the barrel (149), the end plug (191) includes a set of barrels (195), the sleeve (195) including an inner annulus (199) and an outer annulus (201), the end of the end plug (191) The torus (199) defines a space (197), and the end plug (191) further includes a through hole (211), and the outer ring surface (201) of the socket (195) of the end plug (191) is convex. a portion (241), the socket (195) of the end plug (191) is sleeved in the mounting groove chamber (157) of the sleeve (149), and the convex portion (241) is fitted with the notch (243), the shaft The first section (303) of the rod (301) is pivotally connected to the through hole (211) of the end plug (191); a linkage sleeve (213) is pivotally disposed in the space (197) of the end plug (191), and is linked The sleeve (213) includes a sleeve (215) and a snap hole (237), and the flat portion (306) of the shaft (301) is sleeved and rotated together with the engaging hole (237) of the linkage sleeve (213). The sleeve (215) of the interlocking sleeve (213) is pivoted in the space (197) of the end plug (191), and the outer surface of the sleeve (215) is separated from the inner annular surface (199) of the end plug (191). Filling the gap with damping oil, causing the shaft (301) and the linkage sleeve (213) The ratchet (58) is pivotally damped together with the second coupling member (80).