GB871848A - Flexible mountings - Google Patents

Abstract

871,848. Resilient mountings. SILENTBLOC Ltd. March 28, 1960 [April 6, 1959], No. 11623/59. Class 108(3). A flexible mounting comprises a member of rubber or like flexible material having end or outer portions extending between and adhering firmly to rigid mounting members and having intermediate portions attached respectively to the rigid members and which are free to slide over one another in a direction parallel to the surfaces of the rigid member. In examples applied to resilient bushes, tubular rubber sleeves which may be in two parts 3, 4, Fig. 4 are radially compressed between inner and outer members 1, 2 and have intermediate portions 3b, 4b, divided by a layer of lubricant or a sleeve 10 of metal or self lubricating material. In modifications the sleeve 10 may be moulded inside the rubber sleeve. Alternatively the sleeve comprises a pair of rubber rings 14a, 15a Fig. 11 each having axially extending overlapping portions 14b, 15b. Alternatively the sleeve is built up from separate rings 17, 18 Fig. 13 with intermediate concentric cylinders 19, 20 of rubber. In a modification the intermediate portion comprises a helical spring 25, Fig. 15 enclosed between relatively slidable cylindrical metal sleeves 21, 22 having flanged ends 23, 24 to engage the spring. The invention may also be applied to sleeves which are other than circular section such as rectangular. In a substantially different example, discs of rubber 26 Fig. 16 are secured between rigid metal plates 23, 24 the rubber discs have circumferential portions 26a, of greater thickness surrounding a reduced thickness section 26b divided into two relatively slidable portions by a lubricated metal plate 27.