US2870552A - Two-piece digging tooth - Google Patents

Two-piece digging tooth Download PDF

Info

Publication number
US2870552A
US2870552A US544879A US54487955A US2870552A US 2870552 A US2870552 A US 2870552A US 544879 A US544879 A US 544879A US 54487955 A US54487955 A US 54487955A US 2870552 A US2870552 A US 2870552A
Authority
US
United States
Prior art keywords
tongue
lug
tooth
digging
piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US544879A
Inventor
Forrest W Richardson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US544879A priority Critical patent/US2870552A/en
Application granted granted Critical
Publication of US2870552A publication Critical patent/US2870552A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808Teeth
    • E02F9/2816Mountings therefor
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49448Agricultural device making
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49718Repairing
    • Y10T29/49721Repairing with disassembling
    • Y10T29/4973Replacing of defective part
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49815Disassembling
    • Y10T29/49821Disassembling by altering or destroying work part or connector
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/49Member deformed in situ

Definitions

  • This invention relates to improvements in a quickly separable two-piece excavator tooth for excavating shovels.
  • This tooth is of a class such as is generally used on the forward cutting edge of shovels, buckets, dredges, and any other excavating devices.
  • Such teeth when in use, are subject to very severe wear, and it is therefore very important that they may be quickly detached to re move damaged teeth from the excavator and replace them with new ones.
  • This two-piece tooth is strong and rugged in construction and the means for joining the sections thereof together includes a bendable tongue integral with the digging section which may be hammered to a locking position about a shoulder integral with the mounting adapter member, which is securely riveted to the excavator device.
  • the digging section When the digging section is separated from the adaptor by moving the tongue from the securing position, the digging section may be replaced by a new unit to repair the excavating machine for use.
  • Fig. 1 is a top plan view of one of my improved detachable teeth showing the same mounted on the forward edge of an excavating shovel,
  • Fig. 2 is a sectional view taken on line II-II of Fig. 1 showing the tooth in the operative digging position with parts shown in elevation,
  • Fig. 3 is an enlarged sectional view taken on line III III of Fig. 1,
  • Fig. 4 is an inverted view of the structure shown in Fig. 1,
  • Fig. 5 is a perspective view of the digging section
  • Fig. 6 is a perspective view of the mounting adaptor
  • Fig. 7 is an enlarged, inverted sectional view of the tooth parts positioned together in the assembled position with the tongue shown in dotted lines in its original position and with the tongue hammered down to the locking position shown in solid lines.
  • the adaptor is shown with its inner end portion securely riveted to the excavator.
  • Fig. 8 is an enlarged inverted sectional view wherein portions of the tooth parts are shown in dotted lines as the parts are secured together, and in solid lines when the arched portion of the digging section tongue has been given a heavy hammer blow to force the tongue above the adaptor for removal therefrom.
  • the digging section 12 shown in Fig. 5 is of hollow form having a wedge shaped hollow socket 14 suitable for receiving the wedge shaped lug 16 of adaptor 18, which is secured to the excavating machine by means of rivets 20.
  • the forward end 22 of member 12 is made of hardened material and is welded at W to top 38 of said hollow member 12.
  • This body member is quite malleable and has a tongue 24 which is adapted to be bent with a hammer blow to grip the shoulder 26 formed on the underside of Wedge lug 16.
  • the top side of the rear portion of adaptor 18 is convex at 28 to provide that it will have edge contact only with plate 11 of the excavating machine, and has an upwardly standing lug .30 which is disposed against the forward edge of bucket 10.
  • the tongue 24 is arched transversely at 34, and has a saw kerf 32 at its opposite sides which extends to the top of said arch. It will be noted that the arch portion 34 of tongue 24 rests at its opposite sides on the surface of under side 36 of lug 16 of adaptor 18. When so constructed this arch when given a hard hammer blow when t the parts are positioned as shown in Fig. 8 will tend to move the tongue 24 from its securingpo-sition shown in dotted lines to its released position shown in solid lines.
  • the wedge shaped socket 14 has parallel side walls 40 and a bottom wall 42 which together with top wall 38 snugly receive the wedge shaped lug 16 of adaptor 18 to prevent any material relative movement of these connecting parts.
  • a two-piece digging tooth comprising a mounting adaptor including a forwardly tapering wedge-shaped lug having susbtantially planar faces, one of said faces being recessed to form a rearwardly facing shoulder, and a digging section socketed correspondingly to said lug and fitted thereover, said digging section including a rearwardly extending malleable tongue inengagement with the recessed face of said lug, the rearward end portion of said tongue being bent into said recess and engaging said shoulder to secure the parts in assembly, said tongue having a preformed arch therein immediately forwardly of said lug-shoulder and bowed outwardly from said recessed lug face, whereby a sharp ham'mer blow on the outer surface of said tongue arch will bend said tongue to remove the end portion of said tongue from said tongue adapted when said socket is fitted over said lug toextend rearwardly of said lug shoulder, said lug having a preformed arch therein intermediate its ends which when the socket is fitted over the lug is disposed immediately forwardly of said shoulder and is bowed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)

Description

Jan. 27, 1959 F. w. RICHARDSON TWO-PIECE DIGGING' TOOTH 2 Sheets-Sheet 1 Filed Nov. 4, 1955 Jan. 27, 1959 F. w. RICHARDSON TWO-PIECE DIGGING TOOTH 2 Sheets-Sheet 2 Filed Nov. 4, 1955 United States Patent TWO-PIECE DIGGING TOOTH Forrest W. Richardson, Kansas City, Mo. 8 Application November 4, 1955, Serial No. 544,879
2 Claims. (Cl. 37---142) This invention relates to improvements in a quickly separable two-piece excavator tooth for excavating shovels. This tooth is of a class such as is generally used on the forward cutting edge of shovels, buckets, dredges, and any other excavating devices. Such teeth, when in use, are subject to very severe wear, and it is therefore very important that they may be quickly detached to re move damaged teeth from the excavator and replace them with new ones. This two-piece tooth is strong and rugged in construction and the means for joining the sections thereof together includes a bendable tongue integral with the digging section which may be hammered to a locking position about a shoulder integral with the mounting adapter member, which is securely riveted to the excavator device. When the digging section is separated from the adaptor by moving the tongue from the securing position, the digging section may be replaced by a new unit to repair the excavating machine for use.
These as well as other objects will appear in the course of the specification wherein my invention will be disclosed and shown in the accompanying drawings:
Fig. 1 is a top plan view of one of my improved detachable teeth showing the same mounted on the forward edge of an excavating shovel,
Fig. 2 is a sectional view taken on line II-II of Fig. 1 showing the tooth in the operative digging position with parts shown in elevation,
Fig. 3 is an enlarged sectional view taken on line III III of Fig. 1,
Fig. 4 is an inverted view of the structure shown in Fig. 1,
Fig. 5 is a perspective view of the digging section,
Fig. 6 is a perspective view of the mounting adaptor,
Fig. 7 is an enlarged, inverted sectional view of the tooth parts positioned together in the assembled position with the tongue shown in dotted lines in its original position and with the tongue hammered down to the locking position shown in solid lines. The adaptor is shown with its inner end portion securely riveted to the excavator.
Fig. 8 is an enlarged inverted sectional view wherein portions of the tooth parts are shown in dotted lines as the parts are secured together, and in solid lines when the arched portion of the digging section tongue has been given a heavy hammer blow to force the tongue above the adaptor for removal therefrom.
Reference will now be had to the drawings wherein like reference numerals refer to similar parts throughout the several views and the numeral 10 designates an excavating machine bucket such as of a ditcher or the like which must be constantly kept in good repair for proper digging.
It should be kept in mind that each of these machines requires several gangs of teeth which must be properly serviced to keep the digging operation eflicient at all times.
The digging section 12 shown in Fig. 5 is of hollow form having a wedge shaped hollow socket 14 suitable for receiving the wedge shaped lug 16 of adaptor 18, which is secured to the excavating machine by means of rivets 20. The forward end 22 of member 12 is made of hardened material and is welded at W to top 38 of said hollow member 12. This body member is quite malleable and has a tongue 24 which is adapted to be bent with a hammer blow to grip the shoulder 26 formed on the underside of Wedge lug 16. The top side of the rear portion of adaptor 18 is convex at 28 to provide that it will have edge contact only with plate 11 of the excavating machine, and has an upwardly standing lug .30 which is disposed against the forward edge of bucket 10. The tongue 24 is arched transversely at 34, and has a saw kerf 32 at its opposite sides which extends to the top of said arch. It will be noted that the arch portion 34 of tongue 24 rests at its opposite sides on the surface of under side 36 of lug 16 of adaptor 18. When so constructed this arch when given a hard hammer blow when t the parts are positioned as shown in Fig. 8 will tend to move the tongue 24 from its securingpo-sition shown in dotted lines to its released position shown in solid lines.
The wedge shaped socket 14 has parallel side walls 40 and a bottom wall 42 which together with top wall 38 snugly receive the wedge shaped lug 16 of adaptor 18 to prevent any material relative movement of these connecting parts.
When it is evident that a tooth needs to be replaced, the operator simply delivers a sharp hammer blow to the top of arch 34 whereby the tongue will be moved to the released position. This released digging section may be pulled-off and a new one put in place. With a simple blow of the hammer, the new tongue can be set to the locking position. I
What I have invented anddesire to protect by Letters Patent is:
1. A two-piece digging tooth comprising a mounting adaptor including a forwardly tapering wedge-shaped lug having susbtantially planar faces, one of said faces being recessed to form a rearwardly facing shoulder, and a digging section socketed correspondingly to said lug and fitted thereover, said digging section including a rearwardly extending malleable tongue inengagement with the recessed face of said lug, the rearward end portion of said tongue being bent into said recess and engaging said shoulder to secure the parts in assembly, said tongue having a preformed arch therein immediately forwardly of said lug-shoulder and bowed outwardly from said recessed lug face, whereby a sharp ham'mer blow on the outer surface of said tongue arch will bend said tongue to remove the end portion of said tongue from said tongue adapted when said socket is fitted over said lug toextend rearwardly of said lug shoulder, said lug having a preformed arch therein intermediate its ends which when the socket is fitted over the lug is disposed immediately forwardly of said shoulder and is bowed outwardly from said lug, whereby when the socket and lug are assembled a hammer blow at the end portion of'said tongue, will force said end portion into said lug recess to secure the parts in assembly, and whereby a hammer blow on the outer surface of said tongue arch will force the end portion of said tongue out of engagement with said recess.
Smith July 15, 1952 Y
US544879A 1955-11-04 1955-11-04 Two-piece digging tooth Expired - Lifetime US2870552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US544879A US2870552A (en) 1955-11-04 1955-11-04 Two-piece digging tooth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US544879A US2870552A (en) 1955-11-04 1955-11-04 Two-piece digging tooth

Publications (1)

Publication Number Publication Date
US2870552A true US2870552A (en) 1959-01-27

Family

ID=24173972

Family Applications (1)

Application Number Title Priority Date Filing Date
US544879A Expired - Lifetime US2870552A (en) 1955-11-04 1955-11-04 Two-piece digging tooth

Country Status (1)

Country Link
US (1) US2870552A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940191A (en) * 1957-07-05 1960-06-14 Cleveland Trencher Co Excavator rooter tooth assembly
US3049824A (en) * 1961-04-21 1962-08-21 Auburn Machine Works Inc Digging tip
US4407081A (en) * 1981-12-07 1983-10-04 J. I. Case Company Bucket tooth attachment means
US9493930B2 (en) 2006-03-30 2016-11-15 Esco Corporation Lock for securing a wear assembly to excavating equipment
US9670648B2 (en) 2015-08-10 2017-06-06 Caterpillar Inc. Replaceable tip systems for a tine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2305653A (en) * 1941-03-14 1942-12-22 Abraham W Ward Excavator tooth
US2603009A (en) * 1948-02-03 1952-07-15 Forrest E Smith Dipper tooth construction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2305653A (en) * 1941-03-14 1942-12-22 Abraham W Ward Excavator tooth
US2603009A (en) * 1948-02-03 1952-07-15 Forrest E Smith Dipper tooth construction

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940191A (en) * 1957-07-05 1960-06-14 Cleveland Trencher Co Excavator rooter tooth assembly
US3049824A (en) * 1961-04-21 1962-08-21 Auburn Machine Works Inc Digging tip
US4407081A (en) * 1981-12-07 1983-10-04 J. I. Case Company Bucket tooth attachment means
US9493930B2 (en) 2006-03-30 2016-11-15 Esco Corporation Lock for securing a wear assembly to excavating equipment
US9650764B2 (en) 2006-03-30 2017-05-16 Esco Corporation Wear assembly for use on earth working equipment
US9816254B2 (en) 2006-03-30 2017-11-14 Esco Corporation Wear assembly for use on earth working equipment
US10829912B2 (en) 2006-03-30 2020-11-10 Esco Group Llc Wear assembly for use on earth working equipment
US9670648B2 (en) 2015-08-10 2017-06-06 Caterpillar Inc. Replaceable tip systems for a tine

Similar Documents

Publication Publication Date Title
US4027408A (en) Digger teeth with interlocking tooth elements
RU2672076C2 (en) Shroud retention system having replaceable lug insert
US4038766A (en) Excavator bucket ripper tool
US2222071A (en) Detachable scarifier tooth
US2259456A (en) Bucket tooth unit
US2838856A (en) Earth scooping bucket attachment for breaking hardened ground or the like
KR101355629B1 (en) Ripper equipment for excavator
US3325926A (en) Digger tooth and assembly for an excavating apparatus
US3097439A (en) Scarifier attachment
JPH0711144B2 (en) bucket
RU2700136C2 (en) Clamp for working tool fixation system
US2870552A (en) Two-piece digging tooth
US3839806A (en) Two-piece router bit assembly
US2752702A (en) Digging tooth for excavators
US3063176A (en) Replaceable ripper tip
JPS6115214B2 (en)
US4407081A (en) Bucket tooth attachment means
US2353685A (en) Excavator bucket
US3349508A (en) Tooth with t-shaped shank
US3413739A (en) Means for fixing a digging tooth to the leading edge of the tool of an earth workingmachine
US4269275A (en) Replaceable edge bit assembly
US3643357A (en) Router bit for scraper bowl
US1870044A (en) Dipper tooth
JP7208295B2 (en) Tool holding system with pocketed wedges
US1978733A (en) Trenching machine