JPS63500028A - Jyatsuki - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Jyatsuki In this invention, the upper end of the threaded rod with a supporter whose height can be freely adjusted has a driving small tooth. A jack connected to the spindle wheel that meshes with the car, and has teeth. A crank handle that is installed inside a car case so that it cannot be pulled out. It relates to a device that can be rotated using a connected assembly part as an intermediary.

This type of jack is well known from the West German utility model No. 1929691. It is said that there is a connected assembly of the drive pinion and the crank handle. is accomplished using a knurled press fit on the side of the crank handle. will be carried out. Between this knurled press fit and the gear case bushing, this After the knurled press fit has been installed, it is necessary to prevent it from being pulled out again. A flange is provided on the crank handle.

The serrations on the crank handle and its flange should be pierced by the bearing during assembly. This means that the serrations must be threaded through the inner diameter of the bearing. This is because it has an outer diameter of This will destroy the plastic bearing. This must be avoided, especially for small gears, where the choreography of this small gear is The joint surface has a sufficient length or size to ensure that the knurled surface of the crank handle is It must be of sufficient thickness as provided above.

In contrast, the object of the present invention is to provide a ratchet wheel designed as a flat ratchet wheel. The drive pinion can also be fixed to the crank handle with twist protection. To be more specific, insert the end of the crank handle to assemble the jack. The bearings or drive case should be The goal is to improve the type of jitters mentioned at the beginning.

The purpose is to provide a knurled key that is assembled in conjunction with the drive pinion. Engage the end of the crank handle into the carry sleeve without rotating it. It is solved by

In the present invention, the crank handle is not directly connected to the drive gear, but is On the one hand, it meets the meshing and load conditions of the drive pinion, and on the other hand, the crank It has the advantage of better adapting to those conditions at the end of the handle. It is important that they are connected using the separate parts as an intermediary. set of all parts Regarding the stand, the parts that should be connected together are first assembled together with the open carrying sleeve. installed in its assembly position without causing any deformation to any part. As long as it is improved, it is an improvement. Spacing to incorporate crank handle For the first time, the lip of the open carry sleeve installed in the They are folded together so that the jack gears are ready for use.

In an advantageous embodiment of this jack, the end of the crank handle has a carrying sleeve. It has a pinch nose that bites into the length A of the blade. This pinch nose also The vertical hole is also a single process along with the production of the crank handle or carrying sleeve. Since it is completed inside, it is necessary to connect the crank handle and carrying sleeve. The cost is extremely low.

The carry sleeve is the distance between the crank handle and the carry sleeve. Since the gears are installed with a depth of mesh that is approximately equal to the distance between the gears, it is easy to assemble the gears. This not-yet-open carrying sleeve can be used with the crank handle when Do not allow the pinch nose of the unit to hit the insertion end or interfere with assembly. It can be lowered into the carrying sleeve without needing to be inserted.

The bearing on the crank side of the gear case and/or crank handle is often It has a through groove with a profile that corresponds to the contour of the link handle. This piercing The passage grooves can be used without overcoming frictional forces, i.e. the gear case and/or in most cases The crank handle or can push the pinch nose.

Both sides of the crank handle are made of plastic for lubricant if necessary. A gear case bearing with a hole is installed inside. This bearing has teeth This guarantees nimble and easy movement of vehicle equipment. And this rubs against each other This may involve the weight of movement of parts that are touching each other and the risk of damage. Therefore, it is prohibited to provide the drive pinion and carry sleeve in contact with the gear case. Stop.

This carrying sleeve has a length roughly corresponding to the thickness of the drive pinion removed. This end has a U-shape and is approximately perpendicular to the drive pinion. 8 Therefore, here is a simple example showing the components related to this part. The example shows that the interlocking connection does not lose its shape even under large rotational forces. It has become clear that Cutting off this end of the carry sleeve is, in other words, a key At the engagement part of the carrying sleeve, the U-shaped legs are shortened into the drive feeder. Because the carrying sleeve has a raised lip that extends over the end of the crank handle. After insertion, it may affect the strength of the connection between the carrying sleeve and the drive pinion. It will be transformed without any changes.

The crank handle end of the carry sleeve is located adjacent to the bearing. The slope of the sleeve is chamfered to reduce friction between these two parts. ing.

The spindle wheel and drive pinion are toothed retaining washers punched flat. child The arrangement of the two tooth lock washers in the gear case completely prevents this kind of simple gear from being Can be isolated. But according to the invention with crank handle and drive pinion Such a connection can also be used in the case of gearing with bevel gears.

The drive pinion is movably provided at the end of the crank handle and has a carry slide. installed adjacent to the gear case and/or bearing by means of a cable.

The drive small gear is movably installed at the end of the crank handle, so the drive The strength of the connection between the pinion and the end of the crank handle is due to the drive wheel It cannot be violated by binding force; it means that it cannot be violated by binding force. Rather than being connected to the This is because that. Also, the drive pinion is installed at the free end of the crank handle. , which makes assembly of the gear train even easier.

The invention will be explained in more detail on the basis of an embodiment shown in the drawing. That is, Fig. 1 is a cross-sectional view of the upper part of the jack, and Fig. 2 is a cross-sectional view of the upper part of the jack. Figure 3 is a sectional view taken along line B, showing the drive pinion and carry sleeve. An enlarged view of each is shown before it is assembled.

The upper part of the jack 10 shown in FIG. 1 shows a support leg 11 and a threaded rod 12. This screw stud 12 is caught on the upper end of the support leg 11 and attached to the screw frame attachment part 13. It is supported. The threaded rod 12 is firmly connected to the upper end of the support leg 11. The crank handle 14 uses the gear device 15 in the gear case 16 as an intermediary. is driven. The gear case 16 surrounds the gear device 15 in a U-shape. At the top, there is a cover plate 17 which is also U-shaped and is placed 90' apart. This surrounds the outer edge 18 of the gear case 16 from the outside, and there is a A nap connector 19 is attached.

The jack gear system 15 is mainly driven by the crank handle 14. The drive small gear 20 and the operating hoop are connected to the upper end of the screw stud 12 with a twist prevention mechanism. Eel 21. When you turn the crank handle 14, the operating wheel Since the wheel 21 is rotated together with the drive small gear 20, the screw stud 12 also rotates, and its The load arm of the rotating device, which is height adjustable on this threaded rod 12, can be adjusted downwards, resulting in the car being lifted or lowered. Become. The weight of the vehicle is calculated here from a load arm (not shown) to a screw thread (1). 2. Pass through the operating wheel 21 and screw frame attachment part 13 in order to the support leg 11, and then It is carried to the ground (not shown).

The drive pinion 20 is attached to the end 22 of the crank handle 14 and is attached to the end 22 of the crank handle 14. The actuation wheel can be moved in both directions on the end 22 of the link handle. It is necessary to secure a position where engagement with the ball 21 is always guaranteed. child Bearings 23 and 24, in particular, take on the role of ensuring the position of the drive pinion 20. This is a carrying sleeve 25. These bearings 23 and 24 are connected to the gear case 16 are fitted into holes 26, each having an annular flange 27. These two rings The shaped flange 27 confines the drive pinion 20 and the carry sleeve 25 between them. The other side is in contact with the inner wall of the gear case 16, so the drive pinion 20 is Required positions are guaranteed.

Bearings 23 and 24 are each made of plastic and are therefore almost It is guaranteed that there will be no friction. In addition, the bearing 23 has a hole 2 for lubricant. 8, the inside of this hole 28 can be filled with lubricant. , as well as the free end 22 of the crank handle 14 from the drive pinion 20. This means that the parts that are subjected to a lot of force are also properly lubricated. This lubricant is It reaches the part of the bearing 23 that supports the drive pinion in contact with the annular flange 27. Therefore, wear due to friction is also prevented here.

The bearing 24 is also provided with a through groove 29 which also serves to supply lubricant. Unfortunately, when assembling the gear mechanism 15, the crank handle 14 This is primarily useful for penetrating the protrusion 30 of the ridge.

Since the protrusion 30 is fitted into the vertical hole 31 of the carry sleeve 25, the crank Rotating the handle 14 causes the carrying sleeve 25 to rotate as well. Carry - The sleeve 25 is fitted into the groove 33 of the drive pinion 20 by the notched end 32. Ru. The cutout end 32 of the carrying sleeve 25 has a U-shape, and the groove 33 has a rectangular shape. It has a shape. Therefore, the carry sleeve 25 and the drive pinion 20 cannot rotate. Since the crank handle 14 is connected to the It becomes clear that it always corresponds to Here, the crank handle 14 is pulled out. It is connected to the gear device 15 without any interference. This is because the protrusion 30 is attached to the bearing 24. The protruding portion is fitted into the vertical hole 31 to prevent it from being pulled out from the through groove 29. It is from. In Figure 3, it has a U-shape, and in Figure 2, it is shown bent. The edges 34 of the carry sleeve 25 provide the required relative movement for the ridges 30. is being prevented.

The gear system is equipped with a carry sleeve that helps reduce internal friction and wear and tear. This is a chamfered portion 35 made on the conical side of 25.

However, the carrying sleeve 25 only serves as a spacer and a connecting part. Rather, it also serves to strengthen the end 22 of the crank handle. child It is important to strengthen the The reason for this is that the load arm is held in place to prevent it from rattling. When fastening to the crank leg, the threaded rod 12 is attached to the end 22 of the crank handle and the carrier. - This is because the shaft extends from the sleeve 25.

To assemble the gear device 15, after assembling the screw frame attachment part 13 and the screw stud 12, the cover is When the plate 17 is removed, first the bearings 23 and 24 and the drive pinion 2 are removed. 0 is attached to the gear case by the carrying sleeve 25 assembled in the direction of the arrow in FIG. This is accomplished by being incorporated into the In this case, carry sleeve 25 is provided with such play that its bottom can be lowered towards the threaded rod, i.e. At least play is provided in the installation position around the reinforced bottom above the threaded rod. Ru. Because it is lowered, the protrusion 30 passes through the through groove 29 and is placed above the vertical hole 31. It is pushed in until it is located at the end. The carrying sleeve 25 is then shown in FIGS. 1 and 2. It is lifted until the position shown is reached. Subsequently the upper edge 34 is shown in FIG. from the position shown in FIG. 2 to the position shown in FIG. Assembly of the device is completed by installing the cover plate 17.

international search report ANNEX τ0 ding’:, E INTER)IAτl0NAL 5=ARCH RE:’ORT　0NrNTERNAτ? 0NAL k? ? LIc181TrO N No, PCT/DE 86100214 (SA 13436) DE-B -119:1221 NorseDE-A-20546131810S/72 ’　NoneDE-A-200690619108/71None

Claims (10)

[Claims] 1. The upper end has a support that can be freely adjusted in height, and the actuation meshes with the drive pinion. The threaded rod to which the wheels are connected and which is pulled out from there into the gear case. The crank handle, which is provided without any interference, mediates the articulated assembly. In a jack equipped with a threaded rod that is rotated as a The end 22 of the This carry sleeve 25 is assembled by connecting it with the drive small gear 20. Jyakki is further characterized in that it is 2. The end 22 of the crank handle fits into the vertical hole 31 of the carrying sleeve 25. The jack according to claim 1, characterized in that the jack has a protrusion 30 that is tree. 3. The carrying sleeve 25 is attached to the end 22 of the crank handle and to the carrying sleeve 25. A gap approximately corresponding to the depth of fit between the ribs 25 is provided above the ends of the threaded rod. The jack according to claim 1 or 2, characterized in that: 4. The gear case 16 or the bearing 24 of the crank handle 14 is It has at least one through groove 29 whose contour corresponds to the profile of the end 22 of the 1. The method according to any one of claims 1 to 3, wherein Kiki. 5. Both sides of the end 22 of the crank handle are made of plastic and are optionally It can be seen that the bearings 23 and 24 are provided with holes 28 for lubricant. A jack according to any one of claims 1 to 4. 6. The carry sleeve 25 has a length that approximately corresponds to the thickness of the drive pinion 20. It has a truncated end 36, which end 36 is generally U-shaped; It is characterized by being fitted into the substantially rectangular groove 33 of the drive pinion 20. A jack according to any one of claims 1 to 5. 7. A chamfered portion is provided at the end of the carry sleeve 25 on the crank handle side. The jacket according to any one of claims 1 to 6, characterized in that Kiki. 8. The operating wheel 21 and the drive pinion 20 are toothed washers punched flat. The jack according to any one of claims 1 to 7, characterized in that: . 9. The drive pinion 20 is displaceably provided at the end 22 of the crank handle. The carry sleeve 25 is placed adjacent to the gear case 16 or the bearing 23. Any one of claims 1 to 8, characterized in that The jack listed in one of the above. 10. A drive pinion 20 is provided at the free end of the end 22 of the crank handle. The jacket according to any one of claims 1 to 9, characterized in that Kiki.