Formation clamp with power connection plate capable of being adjusted up and down

Abstract

The utility model belongs to the technical field of battery formation clamps, and particularly relates to a formation clamp with a power connection plate capable of being adjusted up and down, which comprises two support frames, a guide rod arranged between the two support frames and a laminate assembly, the laminated board assembly comprises a laminated board, an adjusting seat and a power connection board. The corresponding guide rods are sleeved with the laminated plates, sliding grooves are formed in one sides of the laminated plates, the adjusting bases are arranged in the sliding grooves in a sliding mode, and connecting holes are formed in the adjusting bases; the power connection plate is provided with a connecting part and a power connection part, the connecting part is connected with the adjusting seat, and the power connection part extends to one side of the laminated board; the device further comprises an adjusting mechanism, the adjusting mechanism comprises an adjusting rod and a lifting assembly, the adjusting rod penetrates through the connecting holes of the adjusting bases, and the lifting assembly comprises two racks, two adjusting gears, a first lifting base and an adjusting screw. The two sets of racks are arranged on one sides of the two supporting frames respectively, the two adjusting gears are arranged at the two ends of the adjusting rod respectively, and the corresponding racks are meshed. The first lifting seat is rotationally connected with the adjusting rod, and the adjusting screw rod is connected with the first lifting seat and used for adjusting the height of the first lifting seat.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery formation fixture technical field, especially relates to a formation fixture of up and down adjustment of electricity connection plate. BACKGROUND

[0002] Battery formation fixture is used for battery formation, when battery formation, battery is connected with formation power supply, and battery is pressurized when battery formation, realizes pressure formation. The current formation fixture generally includes two support frames, the guide rod arranged between the two support frames and the multiple groups of layer plate assemblies sleeved on the guide rod. The layer plate assembly includes a laminated plate, an adjusting seat and an electricity connection plate. Generally, the formation fixture can adapt to different battery formation, so the electricity connection plate needs to be adjusted.

[0003] The utility model discloses a hot-pressing formation fixture, including hot-pressing formation device, drive arrangement, pressurizing device and adjusting device, hot-pressing formation device includes several layer plates, is provided with heating pad and circuit board on the layer plate, and the layer plate is in parallel and is arranged side by side, drive arrangement and pressurizing device are arranged at the both ends of hot-pressing formation device respectively, drive arrangement can adjust the interval between layer plate, and pressurizing device can pressurize layer plate. Hot-pressing formation device still includes layer plate guide pillar, and the layer plate is provided with the layer plate guide hole matched with layer plate guide pillar, and the layer plate is slidably sleeved on layer plate guide pillar through layer plate guide hole. Drive arrangement includes push plate, motor, screw rod, screw nut and gear box, and the gear box includes driving wheel, first driven wheel and second driven wheel, and the driving wheel is fixedly connected with the output end of motor, and the first driven wheel is connected with driving wheel and second driven wheel respectively, and the second driven wheel is fixedly connected with screw rod, and motor drives gear box, and the screw rod is horizontally arranged at the both sides of layer plate, and gear box drives screw rod to rotate, and screw rod drives screw nut fixed on push plate to make push plate move in parallel. Pressurizing device includes air cylinder, base, guide shaft, linear bearing and pressing plate, air cylinder is installed fixedly on base, the piston rod of air cylinder is fixedly connected with pressing plate, linear bearing is fixedly installed on base, and guide shaft is slidably connected with linear bearing. The layer plate at the foremost end of hot-pressing formation device is fixedly connected with push plate, and the layer plate at the last end of hot-pressing formation device is fixedly connected with pressing plate, and the layer plate is connected through chain. Adjusting device can adjust the position of circuit board, and adjusting device includes adjusting hand wheel, screw rod, screw rod seat, transition block and adjusting rod, adjusting hand wheel is fixedly connected with screw rod, screw rod is inserted into screw rod seat, transition block is sleeved on screw rod and is threadedly connected with screw rod, and adjusting rod is fixedly connected with transition block. The layer plate includes sliding rod and adjusting block, adjusting block is sleeved on sliding rod and is slidably connected with sliding rod, and adjusting block is fixedly connected with circuit board and adjusting rod respectively.

[0004] The technical solution disclosed in the above patent document uses two screws to adjust the position of the adjusting rod. Therefore, during adjustment, when one of the adjusting screws is adjusted, the end of the adjusting rod is first lifted upward, and then the other adjusting screw is adjusted, which results in repeated adjustment and makes the adjustment very inconvenient. In order to overcome the defects of the technical solution of the above patent document, the Chinese invention patent document with publication number CN109755628B discloses a battery stress position adjustable formation clamp, which includes two support seats, a guide support member arranged between the two support seats, a plurality of groups of layer plates movably arranged along the guide support member, and a driving mechanism for driving the movement of the layer plates; a flexible connecting member of equal length is arranged between adjacent layer plates; a pressure sensor is arranged on one support seat to sense the pressure received by the layer plate; at least one group of tab electrical connection mechanism is arranged on the layer plate; the tab electrical connection mechanism includes a sliding member, a tab electrical connection assembly, and a tab pressing assembly; the sliding member is transversely and translationally arranged on the layer plate, and the tab electrical connection assembly and the tab pressing assembly are fixedly connected with the sliding member and oppositely arranged on both sides of the layer plate; the adjusting mechanism adjusts the transverse distance of the sliding member to the center of the layer plate. The screw mechanism includes two groups of screw assemblies and a transmission assembly, the two groups of screw assemblies are arranged in parallel, and the transmission assembly is connected between the two screw assemblies; the screw assembly includes a mounting seat and a screw, the screw is rotationally connected with the mounting seat, both ends of the screw are connected with bearings in bearing seats, and the bearing seats are fixedly connected with the corresponding support seats. In one embodiment of the screw, one end of the screw is provided with a left-hand thread, and the other end is provided with a right-hand thread, a first nut is sleeved on the left-hand thread, and a second nut is sleeved on the right-hand thread; the two oppositely arranged first nuts are connected at both ends of one lever, and the two oppositely arranged second nuts are connected at both ends of another lever, and this embodiment is used to simultaneously adjust the two tab electrical connection mechanisms on the layer plate. In one embodiment of the screw, one end of the screw is provided with a screw thread, a third nut is sleeved on the screw thread, and the two oppositely arranged third nuts are connected at both ends of one lever, and this embodiment is used to adjust one tab electrical connection mechanism on the layer plate. The transmission assembly includes a first transmission shaft and a steering transmission group connected between the screw and the first transmission shaft, and the transmission group is a pair of intermeshing bevel gears, helical gears, or worm gears. A second bearing seat is sleeved on the first transmission shaft and fixedly connected with the corresponding support seat. The transmission mechanism includes two steering gearboxes and a second transmission shaft connecting the rotation shafts of the two steering gearboxes; the other rotation shafts of the two steering gearboxes are respectively connected with the corresponding first transmission shafts; any first transmission shaft is driven by an electric or manual drive, and the other first transmission shaft is simultaneously rotated through the second transmission shaft. The two sliding members move towards each other or in opposite directions. Therefore, the two groups of transmission assemblies are linked through the transmission shafts connecting the transmission assemblies. When one of the two groups of transmission assemblies is adjusted, the other group is simultaneously adjusted under the action of the transmission shaft, thereby realizing the up-down adjustment of the lever and driving the up-down adjustment of the electrical connection plate.And the two sets of transmission assembly, and the transmission assembly includes screw rod, worm gear and other structures, resulting in the overall structure is complex, inconvenient to install, and high cost. The utility model discloses a content

[0005] The utility model discloses a purpose at providing a kind of formation clamp of power connection plate up and down adjustment, simple structure, easy to install, simple operation, only need to be realized in a position the both ends of adjusting rod up and down adjustment simultaneously.

[0006] To achieve the above object, the utility model embodiment provides a kind of formation clamp of power connection plate up and down adjustment, including two support frames, the guide rod being arranged between two support frames and the multiple groups of layer plate components being set on the guide rod;The layer plate component includes laminated board, adjusting seat and power connection plate;The laminated board is set on the corresponding guide rod, one side of the laminated board is equipped with sliding slot, the adjusting seat is slid in the sliding slot, and the adjusting seat is equipped with connecting hole;The power connection plate is equipped with connecting portion and power connection portion, the connecting portion is connected with the adjusting seat, and the power connection portion extends to one side of the laminated board;Further include adjusting mechanism, the adjusting mechanism includes adjusting rod and lifting assembly, the adjusting rod passes through the connecting hole of each adjusting seat, and the lifting assembly includes two groups of racks, two groups of adjusting gears, first lifting seat and adjusting screw rod;Two groups of racks are respectively arranged on one side of two support frames, two adjusting gears are respectively arranged on the both ends of the adjusting rod, and are engaged with the rack correspondingly;The first lifting seat is rotatably connected with the adjusting rod, and the adjusting screw rod is connected with the first lifting seat, for adjusting the height of the first lifting seat.

[0007] Further, the lifting assembly further includes second lifting seat, the first lifting seat and the second lifting seat are respectively connected at both ends of the adjusting rod, the first lifting seat and the second lifting seat are both arranged in guide hole and clearance hole, the clearance hole and the guide hole are arranged perpendicular to each other and are communicated;The guide hole is connected with the rack, and the adjusting gear is arranged in the clearance hole.

[0008] Further, one of the layer plate components located at the intermediate position of two support frames further includes second adjusting gear and second rack;The second adjusting gear is sleeved on the adjusting rod, and located on the adjusting seat, the adjusting seat is equipped with through hole, the second rack passes through the through hole, and is engaged with the second adjusting gear;The second rack is fixedly connected with the laminated board.

[0009] Further, the adjusting rod comprises two rotating shafts and a gear shaft, one end of the rotating shaft is connected with the adjusting gear, the other end is provided with a mounting groove, the side wall of the mounting groove is provided with a waist-shaped counterbore, the two ends of the gear shaft are provided with connecting flat portions, the connecting flat portions extend into the corresponding mounting grooves, a locking screw passes through the waist-shaped counterbore to lock the gear shaft, and the second adjusting gear is arranged on the gear shaft.

[0010] Further, the upper end of the adjusting screw rod is further provided with a handle for rotating the adjusting screw rod.

[0011] Further, the bottom end of the first lifting seat extends a connecting plate, the connecting plate is provided with a mounting groove, the mounting groove is clamped with an adjusting nut, and the adjusting nut is connected with the adjusting screw rod.

[0012] Further, the axis of the adjusting screw rod deviates from the axis of the adjusting rod and is closer to the rack.

[0013] The above one or more technical solutions in the power connection plate up-down adjusting formation clamp provided by the embodiment of the utility model have at least the following technical effects:

[0014] The power connection plate up-down adjusting formation clamp of the utility model, when the height position of the power connection plate needs to be adjusted, the adjusting screw rod is rotated, the adjusting screw rod drives the first lifting seat to move up and down, when the first lifting seat is adjusted up and down, the end of the adjusting rod connected with the first lifting seat moves together. When the adjusting rod is adjusted up and down, the adjusting gear is engaged with the rack, so that the adjusting rod rotates in the process of moving up and down, and the end of the adjusting rod away from the adjusting screw rod is also provided with an adjusting gear and is engaged with another rack, so that the adjusting rod also moves up and down under the condition that the adjusting gear is engaged with the rack when the adjusting rod rotates. Thus, the two ends of the adjusting rod are adjusted, when the adjusting rod is adjusted up and down, the adjusting seat can be pushed to adjust along the sliding groove, and the height position of the power connection plate is further adjusted. Therefore, the power connection plate up-down adjusting formation clamp has the advantages of simple structure, convenient installation and operation, and the adjustment of the power connection plate can be realized by operating the adjusting screw rod on one side. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0016] Figure 1 The structure diagram of the power connection plate up-down adjusting formation clamp provided by the embodiment of the utility model.

[0017] Figure 2 This is a structural diagram of the layer assembly of the formation fixture for adjusting the vertical position of the electrode plate provided in an embodiment of the present invention.

[0018] Figure 3 This is a structural diagram of the adjustment mechanism of the formation fixture for adjusting the upper and lower contact plate provided in an embodiment of the present invention.

[0019] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0020] Figure 5 This is a structural diagram of the other side of the adjustment mechanism of the formation fixture for adjusting the upper and lower contact plate provided in an embodiment of this utility model.

[0021] Figure 6 for Figure 5 A magnified view of a portion of the image.

[0022] Figure 7 for Figure 5 A partial magnified view of the gear shaft section. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be internal communication of two elements or mutual action relationship of two elements. For ordinary skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0027] In an embodiment of the formation clamp adjusted up and down on the power connection plate, specifically, please refer to Figures 1 to 7The forming fixture for up and down adjustment of the power connection plate comprises two support frames 100, guide rods 200 arranged between the two support frames, a plurality of sets of plate assembly 300 sleeved on the guide rods, and an adjusting mechanism 400. The plate assembly 300 comprises a laminated plate 310, an adjusting seat 320 and a power connection plate 330. The laminated plate 310 is sleeved on the corresponding guide rod 200, one side of the laminated plate 310 is provided with a sliding groove 311, the adjusting seat 320 is slidably arranged in the sliding groove 311, and the adjusting seat 320 is provided with a connecting hole 321. The power connection plate 330 is provided with a connecting part 331 and a power connection part 332, the connecting part 331 is connected with the adjusting seat 320, and the power connection part 332 extends to one side of the laminated plate 310. The adjusting mechanism 400 comprises an adjusting rod 410 and a lifting assembly 420, the adjusting rod 410 passes through the connecting hole 321 of each adjusting seat 320, and the lifting assembly 420 comprises two sets of racks 421, two sets of adjusting gears 422, a first lifting seat 423 and an adjusting screw 424. The two sets of racks 421 are arranged on one side of the two support frames 100 respectively, the two adjusting gears 422 are arranged at two ends of the adjusting rod 410 respectively, and the corresponding racks 421 are engaged. The first lifting seat 423 is rotationally connected with the adjusting rod 410, and the adjusting screw 424 is connected with the first lifting seat 423 and used for adjusting the height of the first lifting seat 423. Specifically, the forming fixture for up and down adjustment of the power connection plate is used for adjusting the height position of the power connection plate 330 when needed, the adjusting screw 424 drives the first lifting seat 423 to move up and down by rotating the adjusting screw 424, and one end of the adjusting rod 410 connected with the first lifting seat 423 moves together when the first lifting seat 423 is adjusted up and down. When the adjusting rod 410 is adjusted up and down, the adjusting gears 422 are engaged with the racks 421, so that the adjusting rod 410 rotates in the process of moving up and down, and one end of the adjusting rod 410 away from the adjusting screw 424 is also provided with the adjusting gears 422 and engaged with the other rack 421, so that the adjusting rod 410 also moves up and down when the adjusting gears 422 are engaged with the racks 421 during the rotation of the adjusting rod 410. Thus, the two ends of the adjusting rod 410 are adjusted, and the adjusting seat 320 is adjusted along the sliding groove 311 when the adjusting rod 410 is adjusted up and down, so as to adjust the height position of the power connection plate 330. Therefore, the forming fixture for up and down adjustment of the power connection plate has the advantages of simple structure, convenient installation and operation, and the adjustment of the power connection plate can be realized by operating the adjusting screw on one side.

[0028] Further, with reference to Figures 3 to 6The lifting assembly 420 further comprises a second lifting seat 425, the first lifting seat 423 and the second lifting seat 425 are respectively rotatably connected at two ends of the adjusting rod 410, the first lifting seat 423 and the second lifting seat 425 are respectively arranged in the guide hole and the clearance hole, the clearance hole and the guide hole are arranged perpendicularly and are communicated; the guide hole is connected with the corresponding rack 421, and the adjusting gear 422 is arranged in the clearance hole, so that the adjusting gear 422 can be engaged with the rack 421. In the embodiment, the first lifting seat 423 and the second lifting seat 425 are respectively provided with the guide hole and the clearance hole, the rack 421 is connected with the guide hole, and the first lifting seat 423 and the second lifting seat 425 are respectively arranged at two ends of the adjusting rod 410, so that the adjusting rod 410 is limitedly connected with the corresponding rack 421 through the first lifting seat 423 and the second lifting seat 425, when the adjusting screw 424 rotates, the two ends of the adjusting rod 410 can be adjusted up and down along the corresponding rack 421, and when the adjusting screw 424 is fixed, the rack 421 can support the adjusting rod 410 through the adjusting gear 422.

[0029] Further, referring to Figure 2 , Figure 5 and Figure 7 , the one-layer plate assembly 300 arranged at the middle position of the two support frames 100 further comprises a second adjusting gear 350 and a second rack 360; the second adjusting gear 350 is sleeved on the adjusting rod 410 and is arranged on the adjusting seat 320, the adjusting seat 320 is provided with a through hole, the second rack 360 passes through the through hole and is engaged with the second adjusting gear 350; the second rack 360 is fixedly connected with the laminated plate 310. In the embodiment, the middle position of the adjusting rod 410 can be supported by the one-layer plate assembly 300 arranged at the middle position, so that the problem of bending deformation of the middle position of the adjusting rod 410 is avoided, and the adjusting precision of the adjusting rod 410 to the butt joint electric plate 330 is improved.

[0030] Further, referring to Figure 7The adjusting rod 410 comprises two rotating shafts 411 and a gear shaft 412, one end of the rotating shaft 411 is connected with the adjusting gear 422, the other end is provided with a mounting groove 413, the side wall of the mounting groove 413 is provided with a waist-shaped counterbore, the two ends of the gear shaft 412 are provided with connecting flat portions 414, the connecting flat portions 414 extend into the corresponding mounting grooves 413; the locking screw passes through the waist-shaped counterbore to lock the gear shaft 412, and the second adjusting gear 360 is arranged on the gear shaft 412. In the embodiment, the adjusting rod 410 is composed of the two rotating shafts 411 and the gear shaft 412, so that the machining cost of the adjusting rod 410 can be effectively reduced, and the problem of deformation due to being too long can be avoided. Moreover, the second adjusting gear 350 is also convenient to assemble with the adjusting rod 410, and the second adjusting gear 350 does not need to be sleeved from one end of the adjusting rod 410. In addition, by connecting the second adjusting gear 350 with the gear shaft 412, the second gear 350 and the gear shaft 412 can be integrally machined; and after the diameter of the adjusting rod 410 is determined, the diameter of the second adjusting gear 350 can be effectively reduced, so that the size of the adjusting seat 320 is reduced, and the adjusting seat 320 can avoid occupying a large space.

[0031] Further, the upper end of the adjusting screw rod 424 is further provided with a handle 426 for rotating the adjusting screw rod 424.

[0032] Further, with reference to Figure 4 , the bottom end of the first lifting seat 423 extends a connecting plate 427, the connecting plate 427 is provided with a mounting groove, the mounting groove is clamped with an adjusting nut 428, and the adjusting nut 428 is connected with the adjusting screw rod 424. In the embodiment, the adjusting nut 428 and the adjusting screw rod 424 are combined, and then combined with the first lifting seat 423, so that the overall installation is more convenient. It is also convenient for disassembly and maintenance.

[0033] Further, with reference to Figure 4 , the axis of the adjusting screw rod 424 deviates from the axis of the adjusting rod 410 and is closer to the rack 421. In the embodiment, when the first lifting seat 423 is lifted, the force of the lifting seat 423 can be eccentric to the adjusting gear 422, so that the adjusting gear 422 can be smoothly pushed to rotate when the first lifting seat 423 is lifted, the adjustment is realized, and the phenomenon of being stuck is avoided.

[0034] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A formation fixture for up and down adjustment of a power contact plate, comprising two support frames, a guide rod arranged between the two support frames, and a plurality of sets of plate assembly sleeved on the guide rod; the plate assembly comprises a laminated plate, an adjusting seat and a power contact plate; the laminated plate is sleeved on the corresponding guide rod, one side of the laminated plate is provided with a sliding groove, the adjusting seat is slidably arranged in the sliding groove, and the adjusting seat is provided with a connecting hole; the power contact plate is provided with a connecting portion and a power contact portion, the connecting portion is connected to the adjusting seat, and the power contact portion extends to one side of the laminated plate; characterized in that, The adjusting mechanism comprises an adjusting rod and a lifting assembly, the adjusting rod passes through the connecting hole of each adjusting seat, the lifting assembly comprises two sets of racks, two sets of adjusting gears, a first lifting seat and an adjusting screw rod; the two sets of racks are respectively arranged on one side of the two supporting frames, the two adjusting gears are respectively arranged at the two ends of the adjusting rod and are engaged with the racks; the first lifting seat is rotationally connected with the adjusting rod, and the adjusting screw rod is connected with the first lifting seat and is used for adjusting the height of the first lifting seat.

2. The electrical contact plate up and down adjustment formation fixture of claim 1, wherein: The lifting assembly further comprises a second lifting seat, the first lifting seat and the second lifting seat are respectively connected at the two ends of the adjusting rod, the first lifting seat and the second lifting seat are arranged in a guide hole and a clearance hole, the clearance hole and the guide hole are arranged perpendicularly and are communicated; the guide hole is connected with the corresponding rack, and the adjusting gear is arranged in the clearance hole.

3. The electrical contact plate up and down adjustment formation fixture of claim 1, wherein: One of the layer plate assemblies located at the middle position of the two supporting frames further comprises a second adjusting gear and a second rack; the second adjusting gear is sleeved on the adjusting rod and located on the adjusting seat, the adjusting seat is provided with a through hole, the second rack passes through the through hole and is engaged with the second adjusting gear; the second rack is fixedly connected with the laminated board.

4. The electrical contact plate up and down adjustment formation fixture of claim 3, wherein: The adjusting rod comprises two rotating shafts and a gear shaft, one end of the rotating shaft is connected with the adjusting gear, the other end is provided with a mounting groove, the side wall of the mounting groove is provided with a waist-shaped counterbore, the two ends of the gear shaft are provided with connecting flat portions, and the connecting flat portions extend into the corresponding mounting grooves; a locking screw passes through the waist-shaped counterbore to lock the gear shaft, and the second adjusting gear is arranged on the gear shaft.

5. The electrical contact plate up and down adjustment formation fixture of claim 1, wherein: The upper end of the adjusting screw rod is further provided with a handle for rotating the adjusting screw rod.

6. The electrical contact plate up and down adjustment formation fixture of claim 1, wherein: The bottom end of the first lifting seat extends a connecting plate, the connecting plate is provided with a mounting groove, the mounting groove is clamped with an adjusting nut, and the adjusting nut is connected with the adjusting screw rod.

7. The electrical contact plate up-down adjustment formation fixture according to any one of claims 1 to 6, characterized in that: The axis of the adjusting screw rod deviates from the center of the adjusting rod and is arranged closer to the rack.

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