U.S. patent number 3,866,939 [Application Number 05/274,140] was granted by the patent office on 1975-02-18 for mounting blocks in vehicle frame and method of installation therein.
This patent grant is currently assigned to International Harvester Company. Invention is credited to Ronald J. Fanslow.
United States Patent |
3,866,939 |
Fanslow |
February 18, 1975 |
MOUNTING BLOCKS IN VEHICLE FRAME AND METHOD OF INSTALLATION
THEREIN
Abstract
Mounting blocks, embodying preformed means to which hold down
fasteners are to be secured, are located inside a vehicle frame by
means of a positioning fixture, so as to conform to the preformed
pattern of bolt openings in a door to fit across the frame. In one
preferred example, the blocks are metal cylinders embodying
eccentric tapped bolt openings. After the positions of the openings
are fixed on locator pins on the positioning fixture, the
individual mounting blocks are eccentrically swung thereabout
outwardly to a snug position against the inside frame walls, and
then are permanently welded thereto to receive the door.
Inventors: |
Fanslow; Ronald J. (Palatine,
IL) |
Assignee: |
International Harvester Company
(Chicago, IL)
|
Family
ID: |
26776529 |
Appl.
No.: |
05/274,140 |
Filed: |
July 24, 1972 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
|
|
87038 |
Nov 5, 1970 |
3713203 |
|
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Current U.S.
Class: |
280/781;
180/69.1 |
Current CPC
Class: |
B60J
5/00 (20130101); B62D 65/06 (20130101) |
Current International
Class: |
B60J
5/00 (20060101); B62D 65/06 (20060101); B62D
65/00 (20060101); B62d 025/20 () |
Field of
Search: |
;280/16R,16T ;267/63R
;296/35R,35.1 ;180/69.1 ;16/129 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Schonberg; David
Assistant Examiner: Carroll; John A.
Attorney, Agent or Firm: Gaines; John W. Harman; Floyd
B.
Parent Case Text
This is a division of application Ser. No. 87,038, filed Nov. 5,
1970 and now U.S. Pat. No. 3,713,203.
Claims
1. A mounting block assembly for a vehicle frame, comprising:
a frame with inner walls defining a mouth;
a door received by the frame for being bolted thereto, and sized to
cover the mouth of the inner frame walls;
door mounting blocks installed generally tangentially on the inner
walls in juxtaposition behind the door, and being cylindrical with
r radius; and
bolt openings presented by the blocks to receive door bolts, each
having e eccentricity to the cylinder, and having the opening
center with an offset of about r from the adjacent inner wall yet,
during installation, affording selective offsets of the opening
center approximately within the
2. The invention of claim 1, further comprising bolt receiving
openings in the door preformed in conformity with the same mounting
hole pattern to afford registry between the respective bolt
openings in the door and in the blocks therebehind; and
bolts received in the registering openings and effecting the door
bolting
3. A mounting block assembly for a vehicle frame, comprising:
a frame with inner walls defining a mouth;
a closure member received by the frame for being fastened thereto,
and sized to cover the mouth of the inner frame walls;
closure-member mounting blocks installed generally tangentially on
the inner walls in juxtaposition behind the closure member, and
being cylinders with r radius and with ends for carrying studs;
and
studs carried by the ends of the cylinders accommodative of
closure-member stud openings, each having e eccentricity to the
cylinder, and having the stud center with an offset of about r from
the adjacent inner wall yet, during installation, affording
selective offsets of the stud center approximately within the range
r .+-. e to accommodate actual practice.
4. The invention of claim 3, further comprising:
stud receiving openings in the closure member prefermed in
conformity with the stud pattern to afford registry between the
respective stud openings in the closure member and studs on the
blocks therebehind;
hold down nuts received on the studs and effecting the door
fastening purpose described; and
tool recess means in the door so accommodating the studs that the
nuts
5. The invention of claim 3, wherein said closure member is a
member of the class comprising access doors, ventilator grilles,
large component closure
6. A mounting block assembly for a vehicle frame, comprising:
a frame with inner walls defining a mouth;
a door received by the frame for being bolted thereto, and sized to
cover the mouth of the inner frame walls;
block-receiving metal stalls to open inwardly from the inner walls
at points consistent with a pattern of mounting holes to be
referenced thereto;
door mounting blocks having tapped bolt openings to provide the
door mounting holes when the stalls and tall occupying blocks are
installed; and
means for installing the stalls, and for installing the door
mounting blocks securely to the wall stalls in juxtaposition behind
the door, with the opening center of each at a point which, during
installation, is selectively offset from the adjacent inner wall by
an amount in the range of about (b + d) .+-. d, where d is the
average distanced, among the blocks in all installations, between
the adjacent portion of the inner wall and the near edge of each
block thereto and b is the block
7. The invention of claim 6, further comprising:
bolt receiving openings in the door preformed in conformity with
the same mounting hole pattern, affording registry betwen the
respective bolt openings in the door and in the blocks therebehind;
and
bolts received in the registering openings effecting the door
bolting as
8. The invention of claim 7, further comprising:
tool recess means in the door so accomodating the bolts that the
heads of
9. A mounting block assembly for a vehicle frame, comprising:
a frame with inner walls defining a mouth;
a component received by the frame, for being fastened thereto
within the inner frame walls;
block-receiving metal stalls to open inwardly from the inner walls
at points consistent with a pattern of mounting means to be
referenced thereto;
mounting blocks having threaded studs at the end and generally
axially protruding to provide the mounting means when the stalls
and stall-occupying blocks are installed; and
means for mounting the stalls, and for installing the door-mounting
blocks securely to the wall stalls in juxtaposition behind the
component, with the protruding stud of each at a point which,
during installation, is selectively offset from the adjacent inner
wall by an amount in the range of about (b + d) .+-. d, where d is
the average distance, among the blocks in all assemblies, between
the adjacent portion of the inner wall and the near edge at the end
of each block thereto and b is the block measurement
10. The invention of claim 9, further comprising:
stud receiving openings in the component preformed in conformity
with the same mounting means pattern, affording registry between
the respective stud openings in the component and studs on the
blocks therebehind;
hold down nuts received on the studs and effecting the component
fastening purpose described; and
tool recess means in the component so accommodating the studs that
the nuts thereon are recessed in the component.
Description
This invention relates to mounting blocks installed in a vehicle
frame, and to the method of installation therein.
More particularly, it relates to door mounting blocks so referenced
to one another on the inside of a vehicle frame that the mounting
blocks present preformed means to which hold down fasteners are to
be secured and the mounting blocks conform to the preformed pattern
of bolt openings in a door which is to be mounted against, and
fastened to, the mountings when fitted across the frame. While
doors have been particularly mentioned, the invention has equal
application to other large components mountable in frames
including, but not limited to, vehicular frames.
Perhaps the most direct, and easiest to follow of the ways to
prepare access doors, ventilator grilles, large components of other
character and panels to be bolted into place, is the technique of
drilling each hole through the door when in place, and part-way
into a door mount on the frame. That way insures that each door
hole and its corresponding mounting hole will "line up" whereupon
the door is temporarily removed.
Then, following a separate operation to enlarge the door holes and
a separate operation to tap the mounting holes, the door can be put
back into place and detachably secured to the frame by hold down
bolts.
There are several disadvantages, such as the expensiveness and
extensiveness of the multiple drill fixtures required, and the
several separate operations involving handling of the frame or door
or both several times. Other ways, such as preforming the holes and
setting the mounts in place in a pattern properly referencing them
to one another, have been proposed. In cases they have been put
into use, but then found to be plagued with other disadvantages
encountered in practical manufacture.
The foregoing disadvantages are materially reduced if not
substantially eliminated by my invention, as will now be explained
in detail.
Various features, objects, and advantages will either be
specifically pointed out or become apparent when, for a better
understanding of the invention, reference is made to the following
description, taken in conjunction with the accompanying drawings
which show certain preferred embodiments thereof and in which:
FIGS. 1 and 2 are in elevation and in plan respectively, as viewed
from the right side and from the top of a unitary tractor frame
which is shown embodying the present invention;
FIG. 3 is in sectional elevation, as viewed from the front along
the section line III -- III in FIG. 2 and showing a mount
detail;
FIGS. 4 and 5 are in elevation and in top plan, showing the detail
of FIGS. 3 to larger scale and in cross section for greater
clarity;
FIG. 6 is isometric, as viewed rearwardly inside the frame and with
the mount positioning fixture being introduced from above;
FIGS. 7 and 8 correspond to elevational FIG. 4, but show a mount
modification respectively upon reaching position and upon final
assembly;
FIG. 9 is a view corresponding to FIG. 5, schematically
illustrating the principle of adjustment of the preceding
embodiments of the invention;
FIGS. 10, 11 and 12 correspond to elevational FIG. 4, but show a
further modification respectively upon reaching position, upon
being affixed in position, and upon final assembly;
FIG. 13 is a top plan view of another modification; and
FIG. 14 is a schematic front, elevational showing illustrating the
principle of adjustment of the modification of FIG. 11.
Particularly as shown in the drawings, the unitary frame hereof,
constructed with double wall sides, is fabricated by welding for
use specifically as a chassis in crawler tractors.
CHASSIS FRAME -- FIGS. 1 and 2
More particularly, in integrated chassis frame for the use just
described comprises: sturdy cross-members 22, 24, and 26 adjacent
the extreme front and rear of the frame; a drive box 28 occupying
the rearwardmost position respectively to a front frame portion 29
and a rear frame portion 31; a set of oppositely positioned
elephant ears 30 forming part of the final drive and carried at the
respective sides of the drive box 28; continuous sides 38 of deep
beam construction extending the full length of the chassis frame
from front to rear, the sides being rigid with the adjacent cross
members, and each arranged with double walls and arranged generally
in a fore and aft extending vertical plane; division means dividing
the front frame portion 29, drive box 28, and rear frame portion 31
into corresponding engine 32, drive 34, and transmission 36
compartments for receiving respectively the tractor engine, the
steering drive, and the transmission component between the
continuous sides; and top and bottom strips extending substantially
the full length of each continuous side, the top strips 42 spacing
apart and being joined to the tops of the vertical double walls of
the sides and the bottom strips 44 spacing apart and being joined
to the bottoms of the vertical double walls; the continuous sides
inclding upright double wall prolongations 40 at the front of the
continuous sides, generally coplanar to and integral with and
extending upwardly from, lower double side walls of the respective
sides, so as to cooperate with the adjacent front cross members to
form a radiator guard door for the engine compartment.
The engine and transmission compartments 32 and 36 have an
interposed inverted channel 47 at the bottom forming a support
tunnel 48 for a track frame equalizer bar, now shown. The sides of
the channel 47 have inserts 49 therein to carry the mid-portion
pivot of the mentioned equalizer bar.
Short top strip terminals 52 to the top strips 42 are secured
between and welded to the tops of the upright double wall
prolongations 40 of the frame sides. In each such side, a vertical
angle member 53 is welded to the front vertical edge of an outer
sheet 39a in the side 38 and to a region of an inner sheet 39
somewhat back of its front edge for securing the sheets to one
another in spaced apart relation. A vertical curved corner piece 54
is welded to the front edge of the outer sheet 39a at its juncture
with the angle piece 53 and also to the front edge of the inner
sheet 39. The lower front cross member 24 is a casting whereof ends
59 on the casting engage the sides 38 in recesses 61 formed in the
side sheets 39 and 39a at the bottom regions of their front ends,
and are secured to the sides 38 be welding. Radiator support tube
openings 66 are vertically spaced apart in the sides 38 and are
used for mounting therebetween a radiator, not shown, in a plane
athwart the side prolongations 40.
Track frame guides 68 are provided which are disposed one at each
side of the rear frame portion, and each of which includes a track
guide gusset plate 70 for reenforcement and a track frame guide
block 72. The bottom strips generally indicated at 44 for each of
the sides 38 are composed of end to end connected front and rear
bottom front 47a and bottom rear 74b rails. The rail bottoms form
the sides of a frame for a crankcase guard door 76 at the bottom of
the front frame porton 29 and a transmission guard door 78 for the
rear frame portion 31, respectively.
Oppositely positioned pivot shaft openings 81 in the drive box 28
are defined by laterally protruding integral wall extensions 83 of
the latter. The side 38 of the box has ribs including a rib 89
which are formed integral therewith and which extend between the
integral wall extension 83 and the elephant ear 30.
Horizontal and inclined rows of door mounting blocks or mounts 84
are provided comprising the aligned blocks 84a on each side of the
rear frame portion for the transmission guard door 78 and the
aligned blocks 84b on each side of the front frame portion for the
crankcase guard door 76. Though not necessarily so, the angle in
inclined rows is usually the same thoughout the length of the row.
It will be seen for example that motor mounts herein and the front
fame portion mounts 84b are in rows with a constant angle, and with
the individual motor mounts in a row eing vertical whereas
individual front frame portion mounts 84b are inclined at an acute
vertical angle normal to the angle of the overall row.
My invention provides several embodiments of mount, each generally
being in a set of two or more mounts.
ECCENTRIC MOUNTING HOLE -- FIGS. 3, 4, and 5
Each mounting block 84 in the row in which it is located is secured
by welding 86 to the confronting inner frame wall presented by the
inner sheet 39, and has a radius r insuring that the geometric
center of the cylindrical shape thereof will always be a distance r
away from the inner wall. However, a tapped hole 88 forming a bolt
opening therein has an eccentricity e relative to the geometric
center, enabling the hole location to be determined by the
rotational angularity of a reference line 90 between the centers. A
hold down bolt 92 threaded into the tapped mounting hole 88 passes
through a registering opening 94 in a spanning bar 96 on the door.
The spanning bar is inwardly offset from the plane of and welded at
its opposite ends to the flange like outer margin of the of the
associated guard door 78. A large tool opening 98 enables the hold
down bolt head to be recessed and to be spanned by the spanning bar
immediately thereabove. The bolt head clamps a washer 100 directly
to the spanning bar 96 and is spaced apart at all points from the
sides of the recessed opening 98 in the door.
The hole location has a set position in a hole pattern, not shown,
and the cylindrically shaped mounting block puts sufficient "float"
into the hole location to reference it to the pattern, irrespective
of maunfacturing variations and irrespective of where the inner
frame wall is located vertically or sidewise. A two-way float
results, with the block having the periphery brought into contact
with the supporting inner wall at the appropriate level thereon,
and with the block having the appropriate block rotational angle,
all prior to permanent securement of the block periphery to the
supporting wall.
FLOAT -- FIG. 6
In installation of a mounting block 84 in proper position in a
pattern secured to the chassis frame side 38, the introduction is
made on a positioning fixture 102 which is properly referenced to
some vertical axis 104 and to some longitudinal axis 106 in the
chassis frame, for example, the frame principal longitudinal axis.
While borne on the positioning fixture, in accordance with the
desired bolt pattern spacing and further with the tapped block
openings on upstanding locator pins 108, the blocks have adjustment
movement imparted thereto, as shown by arrows for their broken line
positions along the upright fixed axes of the locator pins and
about such axes, into contact with the adjacent portion of the
supporting wall. Although the fixed locator pins 108 can be mounted
on differing height spacers to impart inclination to the row of
mounting blocks as installed, for simplification they are
illustrated in FIG. 6 at a common level to provide a horizontal row
of mounts in the chassis frame.
Hold down bolts are not essential, because studs can be used to
advantage in cooperation with nuts to hold a guard door in place.
Exemplary of a modified means for accomplishing such is the
following embodiment of the invention.
MODIFIED STUD EMBODIMENT -- FIGS. 7 and 8
Reference numerals are used corresponding to the preceding
embodiment, but differentiated in the present emebodiment by the
prefix numerals 1 or 2 in the hundreds' place. The numerals and
parts are:
Chassis frame side 138 Mounting block of radius r 184 Threaded
stud, eccentricity Hold down nut 192 e 188 Registering opening 194
Spanning bar 196 Tool opening 198 Washer 200 Positioning fixture
202 Locator hole 208 Guard door 178
Again, the mount and the method of installation achieve practical
importance because of the accommodation afforded by the generally
cylindrical periphery of the block 184 and the depending threaded
stud 188 generally axially protruding from an eccentric location at
the end of the block. The successive steps of installation are:
introduction into the frame, of the blocks while borne at the
desired height on the positioning fixture 202, and while borne
thereby with the desired stud spacing, and with the studs 188 in
the locator holes 208 coaxial with the studs on generally upright
fixed axes; rotation of the blocks 184, while the height is
maintained, on fixed axes aforesaid each into engagement with an
adjacent portion of the confronting inner wall of the frame side
138; and securement of each block 184 to the adjacent portion of
the inner frame wall so that the resulting threaded stud locations
are fixed in conformity with the mounting means pattern
desired.
The positioning fixture is then replaced by the guard door 178
(FIG. 8), the spanning bar 196 carried thereby engaging the
mounting block and the edge of the guard door 188 engaging the rail
portion 144 of the side 138. The hold down nut 192 is then brought
upwardly from the broken line position and threaded onto the stud
188 of each block to clamp the bar 196 and interposed washer 200
thereagainst. The tool opening or recess 198 has a lateral
dimension affording wrench clearance and has a thickness dimension
affording partial recessing of the nut 192.
ADJUSTMENT RANGE -- FIG. 9
Viewed the other way, the cylindrical mount 284 can be considered
the part which is eccentric, eccentric to the located hold dowm
means 288, which latter will be located according to the pattern on
either a pin or a locator hole depending upon whether it is a
tapped mount hole or a threaded mount stud as the case may be. With
the variation afforded by radius r and eccentricity e, maximum
offset available will be r + e for the hold down means 288 when the
mount takes the broken line position 284b tangentially to the side
while the side is in its distal position as shown by the solid
lines 238. The minimum offset available by the mount will be r - e
when the mount is rotated into the solid line position shown by the
solid lines 284, tangential to the side while the side is in its
proximal position as shown by the broken lines 238b. Intermediate
offsets from the side, such as the mid-way offset r, will be
available for the hold dowm means 288, when the mount is swung into
broken line positions such as shown by the broken lines 284a
tangentially to the side in its mid-way position as shown by the
broken mid-way lines 238a.
The contemporaneous height adjustment available is believed obvious
and is not illustrated.
Means can be provided for greater latitude of adjustment in
location, eliminating the need for external cylindricalness which,
if resorted to in some cases, can necessitate a mounting block of
unduly large size.
Exemplary of a modified mount with a hole for accomplishing such is
a modified embodiment of the invention next following.
MODIFIED MOUNT WITH HOLE -- FIGS. 10 and 11
A mounting block 384 which can be four-sided, e.g., square as
viewed in cross section, has a drilled and tapped bolt opening 388
extending axially therethrough at any convenient point such as
through the center of the block. An upstanding locator pin 408 in
the opening 388 sets the block location on their upright coaxis,
relative the supporting positioning fixture 402. The fixture 402
holds the block in a sufficiently offset position from the inner
frame wall that the hole can be referenced to a hole pattern,
allowing the chassis frame side 338 to be made with reasonable
manufacturing tolerances.
To span the offset, a two-plate, inwardly opening metal stall 390
is installed one plate at a time between the inner supporting wall
and the front or back surface of the mounting block 384. The first
plate can be temporarily located by tack welding, but the ultimate
installation will be by bead welding to the parts bridged between,
e.g., horizontal and vertical weld beads 404 and 406 made to the
block 384. The second plate of the stall oppositely positioned to
the first plate can be added by immediate installation or delayed
installation.
Because the inactive end of the block 384 does not extend as far as
the stall 390 extends at that end, the block and the opening 388
therein are unencumbered and open at only one end, which end
presents the accessible mounting face. It thus depends upon whether
the component to be mounted is intended to be bedded in from the
top of the frame or bolted thereunder, as to whether the stall and
block are installed while the chassis frame side 338 is inverted or
not from normal position. There are sundry possibilities and
variations, as suggested by a few specific embodiments to
follow.
DOOR MOUNT EMBODIMENT -- FIG. 12
In a mount for use with a suspended component and specfically with
a door bolted therebeneath, the parts and numerals are: Side 338
Mounting block 384a Trapped hole 388 Hold down bolt 392 Registering
opening 394 Spanning bar 396 Tool opening 398 Washer 400 Guard door
378 Metal stall 390
Complete recessing of the head of the bolt 392 is shown. Recessing
is accomplished by extending the tool opening 398 upwardly to
relieve the bottom central part of the spanning bar 396. The bar
396 is flat against the top of the guard door 378 and is welded at
its opposite ends to the guard door.
MOTOR MOUNT EMBODIMENTS -- FIGS. 1 and 2
In the embodiment of a front engine mounting block 384b, the tapped
hole 388 therein is equidistant from the edges of the block, which
is a square as viewed in cross section. The block forms part of an
engine bed and so the mounting face and accessible end of the
tapped hole are at the upper end of the block. The engine component
and hold down bolt and washer are omitted for simplification, but
the essentials of the environment are shown including the front and
rear frame portions 29 and 31.
A rear enging mounting block 384c extends rectangularly in the
athwart direction shown, and a tapped hole 388 therein is offset in
the medial direction so as to be nearer to the cantilevered inner
edge than to the outer edge of the block. Two of the rear blocks
form the balance of the bed for the engine component of the
vehicle, not shown. All blocks are supported by the welded-in metal
stalls of the type described.
EMBODIMENT WITH STUD -- FIG. 13
In the illustrated mounting block modification 384d, a stud 388d
serving as the generally axially projecting mounting means will be
depending or be upstanding from the block as desired, and the stall
390 will be installed with the frame 338 inverted or not as
appropriate.
Then for mounting thereon, an appropriate component will be used,
provided with mounting holes and being bedded down upon or
suspended downwardly from the stud depending upon its
direction.
The hold down nut and washer for securing the component are omitted
for simplification.
ADJUSTMENT, MODIFIED EMBODIMENTS -- FIG. 14
In this more generalized embodiment of block as shown in elevation
at 384e the purpose is to have the studs, if the block is so
arranged therewith, to project at each of the opposite upper and
lower ends beyond the corresponding end of the metal stall 390. Or,
if the mounting means as actually shown does not comprise studs,
the mounting means can, instead, comprise a tapped axial hole 388e
necessitating that the entire block 384e extend at each end axially
beyond the corresponding end of the stall 390.
Viewed in front elevation in terms of the overall row of mounting
blocks on the chassis frame side 338 the side 338 will have an
average distance d to the row from amont all blocks therein. Each
block for sake of uniformity will have the same measurement b
between the mounting means center line C.L. (i.e., a hole center in
a tapped opening 388e as illustrated) and the edge of the block
near the side 338.
Viewed in terms of the offset capability of each individual block
384e, the cantilever-stall plate length of each metal stall 390
enables the C.L. of the block 384e to have the offset (b + d) + d
from the inner supporting wall when the side has the distal solid
line position as shown by the solid lines 338. The minimum offset
available will be (b + d) - d when the mount is secured by the
stall 390 with the side in its proximal broken line position as
shown by the broken lines 338p. Intermediate offset between the
maximum and minimum noted will be, say for the mid-position, b + d
when the mount is secured by the stall 390 with the side in the
broken line mid-position as shown by the broken lines 338m.
The controlling aspect, of course, will be locating the mount
positioning fixture 402 so that the locator means (e.g., locator
pins 408 as actually illustrated) properly reference each mounting
means in conformity with the mounting pattern desired.
From the foregoing it can be appreciated that final assembly of two
relatively heavy and bulky components can be made with minimum of
handling time for fit up of the two together. On the one hand,
preformed mounts can be undergoing accurate location in one
component with mounting means thereon precisely conforming to a
desired fastener pattern. On the other hand, the other component of
the assembly can be undergoing preforming with fastener openings
precisely in conformity with the same pattern. Full registry thus
materialzes and a foolproof fit up is assured. Final instllation
involves merely the application of the hold down fasteners to
proper torque, by bolt driver or by nut driver depending upon
whether the fasteners are of the threaded bolt type or stud and nut
type.
* * * * *