JPH0418081U

JPH0418081U -

Info

Publication number: JPH0418081U
Application number: JP5871890U
Authority: JP
Priority date: 1990-06-02
Filing date: 1990-06-02
Publication date: 1992-02-14
Anticipated expiration: 2005-06-02
Also published as: JP2540871Y2

Description

[Brief explanation of the drawing]

第１図〜第４図は本考案の第１実施例を示し、
第１図は第２図のＡ−Ａ線断面図、第２図は接地
側（外周側）平面図、第３図は反接地面側（内周
側）平面図、第４図は第３図のＢ−Ｂ線断面図、
第５図及び第６図は本考案の第２実施例を示し、
第５図は接地側平面図、第６図は第５図のＣ−Ｃ
線断面図、第７図は本考案の第３実施例を示す接
地側平面図、第８図ａ，ｂはそれぞれクローラの
接地圧分布図、第９図〜第１２図は従来例を示し
、第９図接地側平面図、第１０図は第９図のＤ−
Ｄ線断面拡大図、第１１図及び第１２図はそれぞ
れ接地側平面図である。１……クローラ、２……本体、２ａ……中央部
、４……係合部、６……外周面、７……ラグ、７
ａ……中央部分、７ｂ……外側翼部分、９……駆
動輪、１２ａ，１２ｂ……圧接面、１３ａ……前
面、１６…横滑り防止突起。 1 to 4 show a first embodiment of the present invention,
Figure 1 is a cross-sectional view taken along the line A-A in Figure 2, Figure 2 is a ground-contact side (outer circumferential side) plan view, Figure 3 is a ground-contact side (inner circumferential side) plan view, and Figure 4 is a 3-3 BB line sectional view of the figure,
5 and 6 show a second embodiment of the present invention,
Figure 5 is a grounding side plan view, Figure 6 is C-C in Figure 5.
A line sectional view, FIG. 7 is a ground-contact side plan view showing the third embodiment of the present invention, FIGS. 8a and 8b are respectively ground pressure distribution diagrams of the crawler, and FIGS. 9 to 12 show conventional examples. Figure 9 is a ground side plan view, Figure 10 is D- of Figure 9.
The enlarged cross-sectional view taken along the line D, and FIGS. 11 and 12 are ground-side plan views, respectively. DESCRIPTION OF SYMBOLS 1... Crawler, 2... Main body, 2a... Center part, 4... Engagement part, 6... Outer peripheral surface, 7... Lug, 7
a...Central portion, 7b...Outside wing portion, 9...Drive wheel, 12a, 12b...Press contact surface, 13a...Front surface, 16...Slip prevention projection.

Claims

[Claims for Utility Model Registration] (1) Engagement parts 4 that engage with the drive wheel 9 are arranged at intervals in the circumferential direction in the center part 2a of the endless belt-shaped main body 2 made of an elastic material, and the outer peripheral surface 6 and a snow crawler integrally molded with lugs 7 at intervals in the circumferential direction, the lugs 7 have a pressure contact surface 12a having a large slope in the central part of the main body 2 in the width direction where the ground pressure is high, and the ground pressure is low. A snow crawler characterized in that the slope of the pressure contact surface 12b is reduced in some parts. (2) The snow crawler according to claim 1, wherein the base width of the lug 7 is substantially the same in both the widthwise center portion 7a of the main body 2 and its both outer wing portions 7b. (3) The snow crawler according to claim 1 or 2, wherein the lug 7 is provided with a skid prevention protrusion 16 on the front surface 13a of the central portion in the width direction of the main body 2.