CH114741A - Device to prevent the loosening of parts such as nuts. - Google Patents
Device to prevent the loosening of parts such as nuts.Info
- Publication number
- CH114741A CH114741A CH114741DA CH114741A CH 114741 A CH114741 A CH 114741A CH 114741D A CH114741D A CH 114741DA CH 114741 A CH114741 A CH 114741A
- Authority
- CH
- Switzerland
- Prior art keywords
- washer
- loosening
- fins
- nuts
- fixed
- Prior art date
Links
- 210000000056 organ Anatomy 0.000 description 4
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Description
Dispositif pour éviter le desserrement d'organes tels que des écrous. On sait que dans certaines machines ayant des trépidations les écrous sont fréquemment desserrés. L'objet de la présente invention est un dispositif pour éviter le desserre- inent de tels organes.
Le dispositif consiste en un organe qui, dans sa partie faisant contact avec la pièce à fixer, est muni d'une creusure et de deux encoches, dans lesquelles est placée une rondelle. Cette rondelle porte des ailettes re pliées sur la pièce à fixer. La creusure et les encoches de l'organe et la rondelle encastrée ont une forme telle qu'en serrant l'organe, la rondelle est obligée à tourner avec cet or gane, tandis que le desserrage de l'organe est empêché par les ailettes formant arrêts sur la pièce à fixer.
Le dessin ci-joint, donné à titre d'exem ple, montre une forme d'exécution de l'objet de l'invention.
La fig. 1 montre une élévation d'un écrou avec la rondelle; La fig. 2 montre la fig. 1, vue dans la direction de la flèche A; La fig. 3 montre la rondelle, vue de face; La fig. 4 montre la fig. 3, vue dans la direction de la flèche B; La fig: 5 montre une partie d'un boulon muni du dispositif.
L'écrou 1 est muni dans la partie q111 fait contact avec la pièce à fixer d'une creusure 2 et de deux encoches 3. La rondelle 4, con sistant en un matériel élastique, par exemple en acier trempé, possède des ailettes 5 et a un diamètre tel qu'elle peut être mise de force dans la creusure 2, cependant que les ailettes 5 sont placées dans les encoches 3.
Les ailettes 5 de la rondelle sont repliées de manière que la rondelle reste plate dans la creusure de l'écrou. En outre, les ailettes sont pliées dans le sens inverse au serrage de l'écrou. L'écrou oblige la rondelle de cette manière à tourner avec lui. En serrant l'écrou, les deux ailettes font ressort en glis sant sur la pièce que l'on veut serrer, .mais au moment où l'on voudrait desserrer, une farce beaucoup plus grande est nécessaire, étant donné que les deux ailettes font arrêt. Pour le desserrement il faut employer un . instrument quelconque pour relever d'abord les ailettes. Les têtes des boulons, les vis, été. peu vent: être préparées de la manière décrite.
Dans un boulon l'écrou et la tête du boulon peuvent être creusés et munis chacun de deux encoches pour recevoir des rondelles décrites.
Device to prevent the loosening of parts such as nuts. It is known that in certain machines having trepidations the nuts are frequently loosened. The object of the present invention is a device for preventing the loosening of such organs.
The device consists of a member which, in its part making contact with the part to be fixed, is provided with a recess and two notches, in which a washer is placed. This washer carries fins bent on the part to be fixed. The recess and the notches of the organ and the recessed washer have a shape such that by tightening the organ, the washer is forced to rotate with this or gane, while the loosening of the organ is prevented by the fins forming stops on the part to be fixed.
The accompanying drawing, given by way of example, shows an embodiment of the object of the invention.
Fig. 1 shows an elevation of a nut with the washer; Fig. 2 shows fig. 1, viewed in the direction of arrow A; Fig. 3 shows the washer, seen from the front; Fig. 4 shows fig. 3, viewed in the direction of arrow B; Fig: 5 shows part of a bolt provided with the device.
The nut 1 is provided in the part q111 makes contact with the part to be fixed with a recess 2 and two notches 3. The washer 4, consisting of an elastic material, for example of hardened steel, has fins 5 and has a diameter such that it can be forced into the recess 2, while the fins 5 are placed in the notches 3.
The fins 5 of the washer are folded back so that the washer remains flat in the recess of the nut. In addition, the fins are bent in the opposite direction to the tightening of the nut. The nut forces the washer in this manner to rotate with it. When tightening the nut, the two fins spring up by sliding over the part that you want to tighten,. But when you want to loosen, a much larger stuffing is necessary, since the two fins are stop. For loosening it is necessary to use a. any instrument to first raise the fins. The heads of the bolts, the screws, were. little wind: be prepared as described.
In a bolt the nut and the bolt head can be hollowed out and each provided with two notches to receive the washers described.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH114741T | 1925-10-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH114741A true CH114741A (en) | 1926-04-16 |
Family
ID=4373845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH114741D CH114741A (en) | 1925-10-03 | 1925-10-03 | Device to prevent the loosening of parts such as nuts. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH114741A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1094533B (en) * | 1956-04-14 | 1960-12-08 | Illinois Tool Works | Screw or nut with a captive locking device |
-
1925
- 1925-10-03 CH CH114741D patent/CH114741A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1094533B (en) * | 1956-04-14 | 1960-12-08 | Illinois Tool Works | Screw or nut with a captive locking device |
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