CA1040685A - Wheel rim having tire lock means and countersunk spoke seats - Google Patents
Wheel rim having tire lock means and countersunk spoke seatsInfo
- Publication number
- CA1040685A CA1040685A CA259,380A CA259380A CA1040685A CA 1040685 A CA1040685 A CA 1040685A CA 259380 A CA259380 A CA 259380A CA 1040685 A CA1040685 A CA 1040685A
- Authority
- CA
- Canada
- Prior art keywords
- rim
- tire
- flanges
- walls
- annular
- 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
Links
Landscapes
- Tires In General (AREA)
Abstract
WHEEL RIM HAVING TIRE LOCK MEANS
AND COUNTERSUNK SPOKE SEATS
ABSTRACT OF THE DISCLOSURE
A wheel rim for a velocipede has tire lock pins on the rim flanges seated within blind holes therein, and counter-sunk spoke holes in the rim.
AND COUNTERSUNK SPOKE SEATS
ABSTRACT OF THE DISCLOSURE
A wheel rim for a velocipede has tire lock pins on the rim flanges seated within blind holes therein, and counter-sunk spoke holes in the rim.
Description
1040~85 WHREL RIM HAVING TIRE LOCK MEANS
AND COUNTERSUNK SPOKE SEATS _ BACKGROUND OF THE INVENTION
This invention relates generally to a wheel rim, and more particularly to a wheel rim having countersunk spoke holes therein and further having blind holes in the flanges thereof for the reception of lock pins engageable with side-walls of the tire for locking the tire in place.
In wheel rims for especially motorcycles and bicycles, the rims are conventionally embossed with a spherical radius and then pierced as by punching in order to accommodate the nipp;es or sleeves provided for the wheel spokes. The em- ~
bossing operation is, however, imprecise and does not provide - -proper location for the head of the nipple to be seated there-on. To insure that the nipple is properly seated at the rim - embossment, the spokes must be tightened several times thereby requiring a consi~derable amount of time and skill for this to be carried out correctly. Also, another disadvantage to an embossed rim is the fracturing of the material when forming ~20 the embossment, which thereby causes the spoke nipples to loosen under severe loads.
Also, wheel rims of the aforementioned type are conven-tionally provided with metal screws extending completely through .
the flanges thereof and engaging portions of the tire for 25 ~ assuring that the tire remains secured to the wheel rim even under low tire pressures. However, such an arrangemen~ re-quires drilling and threading of holes completely through the rim side flanges, thereby possibly effecting a weak rim condi- -tion. Moreover, the metal screws may loosen and fall onto the ~30~ ~ roadway during travel thereby causing a hazardous condition to ~
- : -other vehicles on the road. As an alternative, one or more tire clamps have been utilized for securing the tire to the rim by installing such clamps-inside the tire sidewalls and :~' 1 ~ ;- ',:
project~ng the bolt extending from such clam~ tl~rough the rim.
The clamp is then drawn ~nto the ti~re sidewalls by a nut on the weather side of the rim~ Thls approach i~, howeyer, difficult to carry out and requ~res much sk;"ll and time to assemble into the tire and rim. Also, the tire clamps are heavy and can cause an out-of-balance cond~tion ~`n the wheel.
.
SUMMARY OF THE INVENTION
It is an ob~ect of this invention to provide a wheel rim having countersunk spoke seats arranged to effect a flush seat- -~
ing of the nipple heads of the spokes on the wheel rim.
Another object of this invent~on is to provide a wheel rim as having blind holes in the flanges thereof for the re-ception of lock pins engaging sidewalls of the tire for securely -~
locking the tire and rim together.
In carrying out these objects, the wheel rim is drilled and countersunk at an angle corresponding to the angle at the inner surface of the nipple head so as to insure a flush seating between such head and the rim. The spokes may therefore be pro-perly and more efficiently located relative to the rim, and the tooling required for making such a rim is minimized while pro-ductivity is increased as compared to the embossed type rim mentioned above. Also, by not embossing the rim, any fracturing of rim material due to such embossing is substantially avoided.
,:
.
~A
1C)4~)685 In carrying out the ~b~ecti~ve pertainin~ to the proYision of blind ~oles i~n the r~m flanges, such holes are drilled alon~
the inner ~alls of such flanges, and are equally spaced. The lock pins have shanks-wh~ch are snugly~embraced within the blind holes, and furtl~er have con~cal heads engag~ng the side-walls of tHe tire.
Broadly, the invention contemplates a velocipede which has a ground wheel including an annular rim having spaced outer annular flanges, and an elastomeric tire encir-cling the rim. The tire has spaced annular bead flanges incontact engagement with the inner walls of the rim flanges and elements on the rim flanges engage the tire for assuring securement of the tire to the rim. Those elements comprise annular spaced lock pins having conical heads bearing against the tire with the pins further having shanks of a length less than the thickness of the rim flanges, and the rim flanges have annular spaced cup-shaped depressions opening into the inner walls. The lock pin shanks are respectively located within the depressions, whereby no portion of the lock pins ` 20 extends beyond the outer walls of the rim flanges.
.
BRIEF DESCRIPTION OF THE DRAWINGS
.
Figure 1 is a prior art showing in cross-section of a wheel rim having embossed and punched spoke holes;
. .
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, ~ .
.
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1C)~C)685 Figure 2 is an enlarged sectional view of the Figure 1 showing;
Figure 3 is a sectional view of a part of a wheel rim : -having spoke holes designed in accordance with the invention;
Figure 4 is an enlarged sectional view of the rim of Figure 3 showing a spoke nipple seated in place;
Figure 5 is a prior art showing in cross-section of part of a wheel rim and tire secured thereto by means of a tire clamp; ~.
Figure 6 is a prior art showing in cross-section of part of a wheel rim and tire secured thereto by means of a threaded screw;
Figure 7 is a showing in cross-section of a wheel rim and ; i;
tire secured thereto in a manner of the invention;
Figure 8 is a side elevational view of a lock pin used as shown in Figure 7; and :
Figure 9 is an end view of the Figure 8 lock pin. :~.
DETAILED DESCRIPTION OF THE INVENTION
Turning now to the drawings wherein like reference charac- ~ ;
ters refer to like and corresponding parts throughout the . :
several views, part of a typical wheel rim is shown at 10 in Figure 1 as having spaced outer annular flanges 11 between which ~: - the bead flanges of a tire (not shown) are supported in the --customary manner. An annular web 12 of this wheel rim normally ;
has a central portion 13 of smaller diameter and, in accordance with this prior art showing, portion 13 is embossed as at 14 at predetermined locations and spaced annularly about the rim de-pending on the number of locations required for the spokes (not shown) used in interconnecting the axial hub (not shown) with the wheel rim. The embossments are typically a 5/16 inch to 3/8 inch spherical radius and are about 1/8 inch to 3/16 inch deep. They are then pierced as by punching to form openings 15 into which a nipple or sleeve 16 as shown in Figure 2 is inserted .-4-~- . . .: , . . . . .
' :' ' , ' : . " ,, ;' ;' ~ " ' ~' ' .', , 1~4~685 with its head end 17 facing inwardly of the tire. The opposite end of the nipple is inwardly threaded as at 18 so that, upon turning the nipple, the threaded end of the spoke engaged with thread 18 may be moved toward or away from the nipple to there-by correspondingly ~ighten or loosen the spoke.
The embossing operation carried out for the prior art wheel rim constructions is, however, imprecise and fails to provide an adequate seat for the heads of the spoke nipples.
Therefore, the nipples must be repeatedly tightened before the s nipple is properly seated. This, however, requires a consider-able amount of time and skill if it is to be done correctly.
Also, portions of the wheel rim in the vicinity of the emboss-ment have been found to fracture, as illustrated at 19, while forming the embossments. The spoke nipples are therefore apt to loosen under severe loads because of these weakened areas.
In accordance with the invention, rim 10 is provided with holes 21 such as by drilling completely through portion 13 of web 12. Holes 21 are then countersunk as at 22 shown in Figures 3 and 4. The countersinks are specifically at angles to their respective spoke axes which correspond with the angles ;
of the undersurface 17a of nipple head 17. Therefore, upon insertion of nipple 16 through opening 21, undersurface 17a of -its head will be in flush contact with conical surface 22 of the countersink, as shown in Figure 4. A fracturing of portions of the wheel rim arising out of an embossment is thereby sub-stantially eliminated, and the nipple heads are seated in place on the wheel rim without having to repeatedly tighten the spokes as before. The axle hub is therefore made easier to properly position relative to the wheel rim.
Wheel rim 10 in accordance with the prior art is like-wise designed to facilitate securing of an elastomeric tire 23 between flanges 11 thereof in a manner shown in Figure 5 of -. .
. . , :. : : - . :
lV4068S
the drawings. One or more tire clamps 24 having a resilient channel-shaped element 25 engage the inner sides of the tire bead flanges. A threaded shank 26 embedded in element 25 ex-tends to the weather side of the rim through a suitable opening -~
27. A nut 28 engages the threaded shank and draws element 25 into engagement with inner surface of the tire to thereby lock the tire in place on the rim. This technique is however diffi- -cult to carry out and requires much skill and time to assemble into the tire and rim. Also, the tire clamps are heavy and can cause an out-of-balance condition in the wheel.
In accordance with another prior art construction as shown in Figure 6, one or more metal screws 29 having pointed ends each engage a threaded opening 31 located in rim flanges 11. The pointed ends of the screws engage a portion of the tire at the crease between bead flanges 23a and 23b and the remainder of the tire as shown in Figure 6. Openings 31 are normally formed by drilling and threading completely through the rim flanges so as to thereby cause a possible weak condition in the rim. More- ~
over, the metal screws are apt to easily loosen thereby possibly ~ ~ .
CauSing disengagement between the tire and rim at especially : low tire pressures. Also, the loosened screws may eventually fall away from the rim thereby causing a hazardous condition for other vehicles on~the road. As an improvement over both the aforementioned prior art designs, Figure 7 illustrates the present lnvention wherein blind holes 32 are tapped into both rim flanges 11 at the inner surfaces thereof with about 9 to 10 equally spaced blind holes being provided for each rim flange.
Each hole is drilled to about a 3/16 inch depth and to about a 1/8 inch diameter. A tire lock pin 33 is then inserted into 30 ~ each blind hole with its shank portion 34 (see Figure 8) ~fricti~nally engaging the sidewall of the blind hole. Conical end 35 of each }ock pin extends outwardly of the rim flanges , ~ .
" , "",~ " ," " , . .. .
. . . , :; . :.
:~04C)685 : :
and engages the tire at the crease between bead flanges 23a and 23_ and the rel~aining portion of the tire, as shown for one of the lock pins in Figure 7. Therefore, when the tire is mounted on the rim, tapered ends 35 of the lock pins will preven-t rela-tive slippage of the tire. And, as shown in Figures 8 and 9, shank 35 of each lock pin is provided with equally spaced splines -36 designed for engagement with equally spaced grooves provided in ~he blind holes to increase the frictional engagement of the lock pins within the blind holes and to prevent any relative rotation therewith.
With the present design, it can therefore be seen that the wheel rim lock pins are located in the rim flanges so as not to interfere with the mounting or the demounting of t'ne tire and the tube, if any, with a reasonable amount of care. Moreover, the outer contour of each wheel rim remains unchanged since the heads of the lock screws do not protrude outwardly thereof as :
in the prior art design. Also, by countersinking the spoke holes as aforedescribed, the wheel rim cross-section is constant throughout its annular extent.
Obviously, many modifications and variations of the inven-tion are made possible in the light of the above teachings. It ~;~
is therefore to be understood that within the scope of the appended claims the invention may be practiced otherwise than ; as specifically described.
' .
~ - . .
~ :
_ _
AND COUNTERSUNK SPOKE SEATS _ BACKGROUND OF THE INVENTION
This invention relates generally to a wheel rim, and more particularly to a wheel rim having countersunk spoke holes therein and further having blind holes in the flanges thereof for the reception of lock pins engageable with side-walls of the tire for locking the tire in place.
In wheel rims for especially motorcycles and bicycles, the rims are conventionally embossed with a spherical radius and then pierced as by punching in order to accommodate the nipp;es or sleeves provided for the wheel spokes. The em- ~
bossing operation is, however, imprecise and does not provide - -proper location for the head of the nipple to be seated there-on. To insure that the nipple is properly seated at the rim - embossment, the spokes must be tightened several times thereby requiring a consi~derable amount of time and skill for this to be carried out correctly. Also, another disadvantage to an embossed rim is the fracturing of the material when forming ~20 the embossment, which thereby causes the spoke nipples to loosen under severe loads.
Also, wheel rims of the aforementioned type are conven-tionally provided with metal screws extending completely through .
the flanges thereof and engaging portions of the tire for 25 ~ assuring that the tire remains secured to the wheel rim even under low tire pressures. However, such an arrangemen~ re-quires drilling and threading of holes completely through the rim side flanges, thereby possibly effecting a weak rim condi- -tion. Moreover, the metal screws may loosen and fall onto the ~30~ ~ roadway during travel thereby causing a hazardous condition to ~
- : -other vehicles on the road. As an alternative, one or more tire clamps have been utilized for securing the tire to the rim by installing such clamps-inside the tire sidewalls and :~' 1 ~ ;- ',:
project~ng the bolt extending from such clam~ tl~rough the rim.
The clamp is then drawn ~nto the ti~re sidewalls by a nut on the weather side of the rim~ Thls approach i~, howeyer, difficult to carry out and requ~res much sk;"ll and time to assemble into the tire and rim. Also, the tire clamps are heavy and can cause an out-of-balance cond~tion ~`n the wheel.
.
SUMMARY OF THE INVENTION
It is an ob~ect of this invention to provide a wheel rim having countersunk spoke seats arranged to effect a flush seat- -~
ing of the nipple heads of the spokes on the wheel rim.
Another object of this invent~on is to provide a wheel rim as having blind holes in the flanges thereof for the re-ception of lock pins engaging sidewalls of the tire for securely -~
locking the tire and rim together.
In carrying out these objects, the wheel rim is drilled and countersunk at an angle corresponding to the angle at the inner surface of the nipple head so as to insure a flush seating between such head and the rim. The spokes may therefore be pro-perly and more efficiently located relative to the rim, and the tooling required for making such a rim is minimized while pro-ductivity is increased as compared to the embossed type rim mentioned above. Also, by not embossing the rim, any fracturing of rim material due to such embossing is substantially avoided.
,:
.
~A
1C)4~)685 In carrying out the ~b~ecti~ve pertainin~ to the proYision of blind ~oles i~n the r~m flanges, such holes are drilled alon~
the inner ~alls of such flanges, and are equally spaced. The lock pins have shanks-wh~ch are snugly~embraced within the blind holes, and furtl~er have con~cal heads engag~ng the side-walls of tHe tire.
Broadly, the invention contemplates a velocipede which has a ground wheel including an annular rim having spaced outer annular flanges, and an elastomeric tire encir-cling the rim. The tire has spaced annular bead flanges incontact engagement with the inner walls of the rim flanges and elements on the rim flanges engage the tire for assuring securement of the tire to the rim. Those elements comprise annular spaced lock pins having conical heads bearing against the tire with the pins further having shanks of a length less than the thickness of the rim flanges, and the rim flanges have annular spaced cup-shaped depressions opening into the inner walls. The lock pin shanks are respectively located within the depressions, whereby no portion of the lock pins ` 20 extends beyond the outer walls of the rim flanges.
.
BRIEF DESCRIPTION OF THE DRAWINGS
.
Figure 1 is a prior art showing in cross-section of a wheel rim having embossed and punched spoke holes;
. .
; ` :
,, : ' ~, .
.1' .
, ~ .
.
,`'i ~ "
:,: :
' ' :
. ~ ' ~ ` ' : ' : ~ ` ` :` : . `
1C)~C)685 Figure 2 is an enlarged sectional view of the Figure 1 showing;
Figure 3 is a sectional view of a part of a wheel rim : -having spoke holes designed in accordance with the invention;
Figure 4 is an enlarged sectional view of the rim of Figure 3 showing a spoke nipple seated in place;
Figure 5 is a prior art showing in cross-section of part of a wheel rim and tire secured thereto by means of a tire clamp; ~.
Figure 6 is a prior art showing in cross-section of part of a wheel rim and tire secured thereto by means of a threaded screw;
Figure 7 is a showing in cross-section of a wheel rim and ; i;
tire secured thereto in a manner of the invention;
Figure 8 is a side elevational view of a lock pin used as shown in Figure 7; and :
Figure 9 is an end view of the Figure 8 lock pin. :~.
DETAILED DESCRIPTION OF THE INVENTION
Turning now to the drawings wherein like reference charac- ~ ;
ters refer to like and corresponding parts throughout the . :
several views, part of a typical wheel rim is shown at 10 in Figure 1 as having spaced outer annular flanges 11 between which ~: - the bead flanges of a tire (not shown) are supported in the --customary manner. An annular web 12 of this wheel rim normally ;
has a central portion 13 of smaller diameter and, in accordance with this prior art showing, portion 13 is embossed as at 14 at predetermined locations and spaced annularly about the rim de-pending on the number of locations required for the spokes (not shown) used in interconnecting the axial hub (not shown) with the wheel rim. The embossments are typically a 5/16 inch to 3/8 inch spherical radius and are about 1/8 inch to 3/16 inch deep. They are then pierced as by punching to form openings 15 into which a nipple or sleeve 16 as shown in Figure 2 is inserted .-4-~- . . .: , . . . . .
' :' ' , ' : . " ,, ;' ;' ~ " ' ~' ' .', , 1~4~685 with its head end 17 facing inwardly of the tire. The opposite end of the nipple is inwardly threaded as at 18 so that, upon turning the nipple, the threaded end of the spoke engaged with thread 18 may be moved toward or away from the nipple to there-by correspondingly ~ighten or loosen the spoke.
The embossing operation carried out for the prior art wheel rim constructions is, however, imprecise and fails to provide an adequate seat for the heads of the spoke nipples.
Therefore, the nipples must be repeatedly tightened before the s nipple is properly seated. This, however, requires a consider-able amount of time and skill if it is to be done correctly.
Also, portions of the wheel rim in the vicinity of the emboss-ment have been found to fracture, as illustrated at 19, while forming the embossments. The spoke nipples are therefore apt to loosen under severe loads because of these weakened areas.
In accordance with the invention, rim 10 is provided with holes 21 such as by drilling completely through portion 13 of web 12. Holes 21 are then countersunk as at 22 shown in Figures 3 and 4. The countersinks are specifically at angles to their respective spoke axes which correspond with the angles ;
of the undersurface 17a of nipple head 17. Therefore, upon insertion of nipple 16 through opening 21, undersurface 17a of -its head will be in flush contact with conical surface 22 of the countersink, as shown in Figure 4. A fracturing of portions of the wheel rim arising out of an embossment is thereby sub-stantially eliminated, and the nipple heads are seated in place on the wheel rim without having to repeatedly tighten the spokes as before. The axle hub is therefore made easier to properly position relative to the wheel rim.
Wheel rim 10 in accordance with the prior art is like-wise designed to facilitate securing of an elastomeric tire 23 between flanges 11 thereof in a manner shown in Figure 5 of -. .
. . , :. : : - . :
lV4068S
the drawings. One or more tire clamps 24 having a resilient channel-shaped element 25 engage the inner sides of the tire bead flanges. A threaded shank 26 embedded in element 25 ex-tends to the weather side of the rim through a suitable opening -~
27. A nut 28 engages the threaded shank and draws element 25 into engagement with inner surface of the tire to thereby lock the tire in place on the rim. This technique is however diffi- -cult to carry out and requires much skill and time to assemble into the tire and rim. Also, the tire clamps are heavy and can cause an out-of-balance condition in the wheel.
In accordance with another prior art construction as shown in Figure 6, one or more metal screws 29 having pointed ends each engage a threaded opening 31 located in rim flanges 11. The pointed ends of the screws engage a portion of the tire at the crease between bead flanges 23a and 23b and the remainder of the tire as shown in Figure 6. Openings 31 are normally formed by drilling and threading completely through the rim flanges so as to thereby cause a possible weak condition in the rim. More- ~
over, the metal screws are apt to easily loosen thereby possibly ~ ~ .
CauSing disengagement between the tire and rim at especially : low tire pressures. Also, the loosened screws may eventually fall away from the rim thereby causing a hazardous condition for other vehicles on~the road. As an improvement over both the aforementioned prior art designs, Figure 7 illustrates the present lnvention wherein blind holes 32 are tapped into both rim flanges 11 at the inner surfaces thereof with about 9 to 10 equally spaced blind holes being provided for each rim flange.
Each hole is drilled to about a 3/16 inch depth and to about a 1/8 inch diameter. A tire lock pin 33 is then inserted into 30 ~ each blind hole with its shank portion 34 (see Figure 8) ~fricti~nally engaging the sidewall of the blind hole. Conical end 35 of each }ock pin extends outwardly of the rim flanges , ~ .
" , "",~ " ," " , . .. .
. . . , :; . :.
:~04C)685 : :
and engages the tire at the crease between bead flanges 23a and 23_ and the rel~aining portion of the tire, as shown for one of the lock pins in Figure 7. Therefore, when the tire is mounted on the rim, tapered ends 35 of the lock pins will preven-t rela-tive slippage of the tire. And, as shown in Figures 8 and 9, shank 35 of each lock pin is provided with equally spaced splines -36 designed for engagement with equally spaced grooves provided in ~he blind holes to increase the frictional engagement of the lock pins within the blind holes and to prevent any relative rotation therewith.
With the present design, it can therefore be seen that the wheel rim lock pins are located in the rim flanges so as not to interfere with the mounting or the demounting of t'ne tire and the tube, if any, with a reasonable amount of care. Moreover, the outer contour of each wheel rim remains unchanged since the heads of the lock screws do not protrude outwardly thereof as :
in the prior art design. Also, by countersinking the spoke holes as aforedescribed, the wheel rim cross-section is constant throughout its annular extent.
Obviously, many modifications and variations of the inven-tion are made possible in the light of the above teachings. It ~;~
is therefore to be understood that within the scope of the appended claims the invention may be practiced otherwise than ; as specifically described.
' .
~ - . .
~ :
_ _
Claims (4)
1. In a velocipede having a ground wheel including an annular rim having spaced outer annular flanges, and an elasto-meric tire encircling said rim, said tire having spaced annular bead flanges in contact engagement with the inner walls of said rim flanges, and elements on said rim flanges engaging said tire for assuring securement of said tire to said rim; characterized in that said elements comprise annular spaced lock pins having conical heads bearing against said tire, said pins further having shanks of a length less than the thickness of said rim flanges, and said rim flanges having annular spaced cup-shaped depres-sions opening into said inner walls, said lock pin shanks being respectively located within said depressions, whereby no por-tion of said lock pins extends beyond the outer walls of said rim flanges.
2. In a velocipede having a ground wheel including an annular rim, a central axle hub, and a plurality of spokes inter-connecting said rim and said hub, nipples of circular cross-section threadedly engage with said spokes, said nipples having heads with inner conical surfaces bearing against an inner sur-face of said rim and said nipples extending through holes pro-vided in said rim; characterized in that said rim holes are partially defined by walls of circular cross-section lying parallel to the respective central axes of said nipples, said rim holes being further defined by conical walls extending from said circular walls to said inner surface of said rim, said conical walls lying parallel to said conical surfaces of said nipple heads, whereby said conical surfaces are respectively in flush contact engagement with said conical walls, said rim including spaced outer annular flanges and said ground wheel further including an elastomeric tire encircling said rim, said tire having spaced annular bead flanges in contact engagement with the inner walls of said rim flanges, and elements on said rim flanges engaging said tire for assuring securement of said tire to said rim; further characterized in that said elements comprise annular spaced lock pins having conical heads bearing against said tire, said pins further having shanks of a length less than the thickness of said rim flanges, and said rim flanges having annular spaced cup-shaped depressions opening into said inner walls, said lock pin shanks being respectively located within said depressions, whereby no portion of said lock pins extends beyond the outer walls of said rim flanges.
3. In the velocipede of Claim 2, wherein said rim is of uniform cross-section throughout its annular extent.
4. In the velocipede according to Claim 1, Claim 2 or Claim 3, wherein said shanks and the walls of said depressions are provided with mating tongues and grooves for frictionally seating said shanks within said depressions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA259,380A CA1040685A (en) | 1976-08-18 | 1976-08-18 | Wheel rim having tire lock means and countersunk spoke seats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA259,380A CA1040685A (en) | 1976-08-18 | 1976-08-18 | Wheel rim having tire lock means and countersunk spoke seats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1040685A true CA1040685A (en) | 1978-10-17 |
Family
ID=4106684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA259,380A Expired CA1040685A (en) | 1976-08-18 | 1976-08-18 | Wheel rim having tire lock means and countersunk spoke seats |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1040685A (en) |
-
1976
- 1976-08-18 CA CA259,380A patent/CA1040685A/en not_active Expired
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