JPH09188142A - Jig for attaching battery frame on vehicle body and method for attaching battery frame onto vehicle body therewith - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability without causing cost increase when a battery frame which is a heavy object with a plurality of sets of batteries into it is tightened and fixed with a tightening tool against the lower surface of the body of an electric vehicle. SOLUTION: With a jig for attaching on a vehicle body 1 tightened and fixed on the bottom surface of a vehicle body 5 by a male screw 11, the body 5 which has been lifted up with an industrial lifter is lowered toward a battery frame 3 loaded on a carriage. The jig for attaching on a vehicle body 1 is inserted into an inserting hole 19a in the battery frame 3 from the rod 13 side. At that time, a rib part 19b around the inserting hole 19a comes into contact with the outer surfaces of supporting pieces 15, 17 from the lower side and is rotated inward. When the fitting surface 19 enters between the body 5 and the support pieces 15, 17, the support pieces 15, 17 rotate outward by their dead weight to be kept in a temporarily supporting condition. When the vehicle body 5 is lifted up, the upper ends of the support pieces 15, 17 come into contact with the bottom surface of the fitting surface 19, thus allowing the battery frame 3 to be supported temporarily on the body 5 with the jig for attaching on the vehicle body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-body mounting jig for a battery frame used for fastening and fixing a battery frame incorporating a battery to a lower surface of the vehicle body by a fastener in an electric vehicle and the jig. The present invention relates to a method for mounting a battery frame on a vehicle body.

[0002]

The workability in fastening and fixing a heavy battery frame, in which a plurality of batteries are incorporated, to the underside of the body of an electric vehicle with fasteners is improved without increasing the cost.

[0003]

In order to achieve the above object, the present invention is, firstly, a battery frame used for fastening and fixing a battery frame having a plurality of batteries incorporated therein to a lower surface of a vehicle body with a fastener. In the vehicle body mounting jig, a fixing portion which is provided on one end side and fixed to the lower surface of the vehicle body, and an operation portion which is provided on the other end side and is operated when fixing the fixing portion to the lower surface of the vehicle body. , The insertion hole peripheral portion provided between the operation portion and the fixing portion and into which the fixing portion of the battery frame in a state where the fastener is removed is placed on the upper end to temporarily fix the battery frame. A supporting portion for supporting the battery frame, the supporting portion from the supporting position for temporarily supporting the battery frame with the fixing portion fixed to the vehicle body while aligning the insertion hole with the tip of the operating portion. When the reframe and the lower surface of the vehicle body are brought closer to each other, they are pushed by the peripheral portion of the insertion hole and move inward, and the peripheral portion of the insertion hole of the battery frame is moved between the support portion and the lower surface of the vehicle body. It is configured to be displaceable to the storage position.

Secondly, in the first structure, a pair of electrical contacts is provided at the upper end of the supporting portion that comes into contact with the battery frame when the battery frame is temporarily supported, and the pair of electrical contacts serves to connect the battery frame. The configuration is such that a confirmation lamp is provided which is turned on when electrically connected via the.

Third, a plurality of vehicle body mounting jigs are fixed to the lower surface of the vehicle body by a fixing portion provided at one end thereof,
With respect to this fixed vehicle body mounting jig, the battery frame and the vehicle body lower surface are brought close to each other while aligning the insertion hole provided in the battery frame with the tip of the operation portion provided at the other end side, and at the time of this approaching operation, The peripheral portion of the insertion hole comes into contact with a support portion provided on the vehicle body mounting jig and is moved inward, and when the peripheral portion of the insertion hole is located between the lower surface of the vehicle body and the support portion, the support portion is outwardly moved. When the vehicle body and the battery frame are moved away from each other in this state, the upper end of the support portion comes into contact with the lower surface of the peripheral portion of the insertion hole to temporarily support the battery frame. Is a method for mounting a battery frame on a vehicle body by fastening and fixing the battery frame to the lower surface of the vehicle body.

Fourthly, in the third method, the plurality of vehicle body mounting jigs have different operating portions, and when the battery frame and the vehicle body are brought close to each other, the operating portions are arranged in order from the longest operating portion. This is a method for mounting a battery frame on a vehicle body in which the insertion hole of the battery frame and the tip of the operating portion are sequentially aligned.

Fifthly, in the first configuration, the fixed portion is
It is configured so that it can be attached to and detached from the vehicle body by screw connection, and a mounting portion for a tool for performing the attachment / detachment operation by the screw connection is provided at the tip of the operation portion.

[0008]

According to the first invention or the third invention,
With the fixing portion on one end side fixed to the lower surface of the vehicle body, the tip end of the operating portion on the other end side is aligned with the insertion hole of the battery frame, and the vehicle body and the battery frame are brought close to each other, so that the peripheral portion of the insertion hole is While moving the support part inward and displacing it to the storage position, when it reaches between the lower surface of the vehicle body and the support part, the support part is displaced to the outer support position, and in this state, When the battery frame and the battery frame are separated from each other, the supporting portion temporarily supports the battery frame, and in this temporary supporting state, the battery frame can be fastened and fixed to the lower surface of the vehicle body by the fastener, which facilitates the fastening work and reduces the weight. It is sufficient to lower the vehicle body on the general-purpose lifter so that the battery frame, which is an object, is placed on a dolly or the like so as to approach the battery frame. Lid is not required.

According to the second aspect of the present invention, when the battery frame is placed on the support part and is properly temporarily supported with the support part in the support position, the pair of electrical contacts at the upper end of the support part are connected to the battery. Since the confirmation lamp is lit by being electrically connected to each other through the frame, the provisional support state of the battery frame can be easily known by confirming whether or not the confirmation lamp is lit.

According to the fourth aspect of the present invention, when the battery frame and the vehicle body are brought close to each other, the insertion hole of the battery frame and the tip of the operating portion are sequentially aligned in order from the vehicle body mounting jig having the long operating portion. The battery frame insertion hole can be easily aligned with the plurality of vehicle body mounting jigs.

According to the fifth aspect of the invention, the attachment / detachment work of the vehicle body mounting jig with respect to the vehicle body can be easily performed by mounting the tool on the tool mounting portion at the tip of the operating portion and rotating the tool.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a vehicle body mounting jig 1 according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a cross-sectional view of a main part showing a state in which the battery frame 3 is temporarily supported by the vehicle body mounting jig 1 on the lower surface of the vehicle body 5. The vehicle body mounting jig 1 temporarily mounts the four corners of the battery frame 3 on a temporary basis. Four shall be used to support.

As shown in the perspective view of FIG. 4, the battery frame 3 includes six batteries 6 in the vehicle width direction (direction of arrow X in the drawing) and four batteries 6 in the vehicle front-rear direction (direction of arrow Y in the drawing).
A total of 24 batteries are installed, and a plurality of batteries 6
Are fixed to the battery frame 3 by the band 9 while being connected to each other in series by the high-power harness 7.
In the battery frame 3 in which the battery 6 is incorporated, the bolts 51 shown in FIGS. 7 and 8 to be described later are passed from below the battery frame 3 through the bolt insertion holes 3 a to the vehicle body 5
It is fastened and fixed to a bolt hole (not shown) on the lower surface of the vehicle, and is thereby mounted on the lower surface of the vehicle body.

The vehicle body mounting jig 1 has a male screw portion 11 as a fixing portion provided on one end side located on the upper side in FIG.
And a rod 13 which is provided on the other end side and located on the lower side thereof, and which serves as an operating portion for rotating the male screw portion 11.
And supporting pieces 15 and 17 provided between the rod 13 and the male screw portion 11 as a supporting portion for temporarily supporting the battery frame 3. The battery frame 3 is formed of an aluminum material having a closed cross section, and the mounting surface 1 of the battery frame 3 to the vehicle body 5 is
Insert holes 19a and 21a for inserting the vehicle body mounting jig 1 are formed in the inclined surface 21 on the 9 side and the lower side, respectively.

The male screw portion 11 of the vehicle body mounting jig 1 is mounted on the vehicle body 5
The rod 13 has a hexagonal hole 13a as a tool mounting portion for inserting a hexagonal wrench at the lower end in FIG. 1, which is fastened and fixed to a bolt hole provided in a side member or a cross member on the lower surface of the rod 13. Then, a hexagonal wrench is inserted into the hexagonal hole 13a to rotate the male screw portion 11. The rod 13 has four different lengths used at the four corners of the battery frame 3, and the length shown in FIG. 3 is the longest.

The support pieces 15 and 17 are pivotally displaceable around the support shaft 23 between a support position shown by a two-dot chain line in FIG. 1 and a storage position shown by a solid line, as shown in FIG. In the state where the male screw portion 11 is on the upper side and the rod 13 is on the lower side, the supporting position of the chain double-dashed line is maintained by its own weight. FIG. 5 is a perspective view of the support pieces 15 and 17, and one support piece 15 has an insertion hole 25 into which the support shaft 23 is inserted.
It is composed of one cylindrical portion 25 provided with a and a support body 27 which is integrally formed with the cylindrical portion 25 and on which the battery frame 3 is placed. The other support piece 17 includes two cylindrical portions 29 having insertion holes 29a into which the support shaft 23 is inserted, and a support body 31 that is integrally formed with each of the cylindrical portions 29 and on which the battery frame 3 is placed. It is configured.

The outer diameter of the support pieces 15, 17 when the support pieces 15, 17 are in the storage position is smaller than the inner diameter of the insertion hole 19a of the battery frame 3, and therefore the support pieces 15, 17 in the storage position. Can pass through the insertion hole 19a. On the other hand, when the supporting pieces 15 and 17 are in the supporting position, the upper end of the supporting pieces 15 and 17 comes into contact with the lower surface of the rib portion 19b around the insertion hole 19a of the battery frame 3 so that the battery frame 3 can be temporarily supported. The outer diameter of the support pieces 15 and 17 of
It is smaller than the insertion hole 21a in the lower portion of the battery frame 3, so that the support pieces 15 and 17 at the supporting position can pass through the insertion hole 21a.

FIG. 6 is a perspective view of a main part of the vehicle body mounting jig 1 in which the supporting pieces 15 and 17 are omitted, and the central part of the columnar body is cut out at positions facing each other on the outer peripheral side. A pair of connected bodies 33 and 35 are formed. The above-mentioned support shaft 23 is mounted between the substantially central portions of the pair of connecting bodies 33, 35 in the vertical direction. The connecting bodies 33, 35 are formed on the upper surface of a conical portion 37, a female screw portion 37a is formed on the lower end of the conical portion 37, and a male screw portion 13b formed on the upper end of the rod 13 is screwed into the female screw portion 37a. It is fixed.

A light emitting diode 39 is installed on the side surface of the conical portion 37, while electrical contacts 41 and 43 are provided on the upper ends of the supports 27 and 31, respectively. 41 and 43 are conical parts 3
Wiring is connected via a battery (not shown) built in the unit 7. As shown in FIG. 3, the electrical contacts 41 and 43 are placed on the support members 27 and 31 of the support pieces 15 and 17 in which the battery frame 3 is in the supporting position, and the electrical contacts 41 and 43 are interposed via the battery frame 3. The light emitting diode 39 lights up. In other words, the light emitting diode 39 constitutes a confirmation lamp for confirming the state where the battery frame 3 is correctly and temporarily supported by the support pieces 15 and 17.

A male screw portion 1 fastened and fixed to the lower surface of the vehicle body 5.
As shown in FIG. 6, 1 is fixed to the center of a support base 45 connecting the upper ends of the pair of connecting bodies 33 and 35. As shown in FIG. 3, when the male screw portion 11 is fastened and fixed to the lower surface of the vehicle body 5, a gap S is formed between the upper ends of the support pieces 15 and 17 and the lower surface of the vehicle body 5. The gap S is formed to be larger than the thickness T of the rib portion 19b around the insertion hole 19a in the mounting surface 19. That is, as shown in FIG. 3, when the battery frame 3 is placed on the upper ends of the supporting pieces 15 and 17 at the supporting position and is temporarily supported, the rib portion 19b of the battery frame 3 and the lower surface of the vehicle body 5 are A clearance C is formed between them.

Next, the mounting of the battery frame 3 on the vehicle body 5 using the vehicle body mounting jig 1 as described above and the work of removing it from the vehicle body 5 will be described. FIG. 7 shows a work procedure when the battery frame 3 in which the battery is incorporated is mounted on the vehicle body 5. Here, in order to move the car body 5 up and down, a general-purpose lifter 47 as used in a dealer or a maintenance shop of a car is used.
9 is used to move. According to this, as shown in FIG. 7A, with the vehicle body 5 raised by the general-purpose lifter 47, the four vehicle body mounting jigs 1 are fastened to the lower surface of the vehicle body 5 using a hexagon wrench (not shown). The battery frame 3 mounted on the carriage 49 is fixed and arranged below the vehicle body 5.

Next, as shown in FIG. 2B, the general-purpose lifter 4
The vehicle body 5 is lowered by 7 and the rod 1 of the vehicle body mounting jig 1 is moved.
3 is inserted into the insertion hole 19a of the battery frame 3, whereby the bolt hole on the vehicle body 5 side and the bolt insertion hole 3a on the battery frame 3 side are aligned. At this time,
Since the rods 13 of the four vehicle body mounting jigs 1 have different lengths, first, the longest rod 13 is inserted into the insertion hole 19a, and then the shorter rods 13 are sequentially inserted, so that there are four vehicle body mounting jigs. It becomes possible to easily insert all the rods 13 of the tool 1 into the insertion holes 19a of the battery frame 3.

When the rod 13 of the vehicle body mounting jig 1 is inserted into the battery frame 3 and the battery frame 3 approaches the lower surface of the vehicle body 5, the insertion hole 19a of the battery frame 3 is inserted.
The peripheral rib portion 19b comes into contact with the outer surfaces of the support pieces 15 and 17 at the support positions shown by the chain double-dashed line in FIG.
17 are rotated about the support shaft 23 in the directions toward each other until the storage positions shown by the solid line in FIG. 1 are reached.
When the rib portion 19b reaches above the supporting pieces 15 and 17 due to the approach of the battery frame 3 to the vehicle body 5 due to this rotation, the supporting pieces 15 and 17 are shown by the two-dot chain line in FIG. 1 due to their own weight. Returning to the support position, the vehicle body mounting jig 1 moves to the vehicle body 5
Is temporarily supported.

From the above-mentioned provisionally supportable state, the general-purpose lifter 47
When the vehicle body 5 is lifted by the ribs 19b around the insertion hole 19a of the battery frame 3 in contact with and supported by the upper ends of the supporting pieces 15 and 17 at the supporting positions, as shown in FIG. 3 is in a state of being temporarily supported by the vehicle body mounting jig 1. At this time, a clearance C is formed between the battery frame 3 and the lower surface of the vehicle body 5. In the temporary support state, as shown in FIG. 3, when the electrical contacts 41 and 43 provided on the support pieces 15 and 17 are conducted through the battery frame 3, the light emitting diode 39 is turned on, and this lighting is performed by the four vehicle bodies. By confirming all the mounting jigs 1 by the operator, it is found that the battery frame 3 is correctly temporarily supported, and the operation shifts to the operation of FIG. 7C. If even one of the four vehicle body mounting jigs 1 is not lit, it means that the battery frame 3 is not tentatively supported correctly and the mounting work is interrupted.

When the vehicle body 5 is lifted by the general-purpose lifter 47 as shown in FIG. 7C with the battery frame 3 being properly temporarily supported, the battery frame 3 is also lifted accordingly, and in this state, the bolts The battery frame 3 is fastened and fixed to the lower surface of the vehicle body 5 by 51. By this fastening work, the clearance C between the battery frame 3 and the lower surface of the vehicle body 5 disappears, and the battery frame 3 comes into close contact with the lower surface of the vehicle body 5. In this state, the upper ends of the support pieces 15 and 17 of the vehicle body mounting jig 1 are separated from the mounting surface 19 of the battery frame 3, and a hexagonal wrench should be inserted into the hexagonal hole 13a of the rod 13 and rotated. Then, as shown in FIG. 7D, the vehicle body mounting jig 1 is removed from the vehicle body 5. When the vehicle body mounting jig 1 is removed from the vehicle body 5, the vehicle body 5 is lowered by the general-purpose lifter 47 to be grounded, thereby completing the battery mounting work.

In this way, the battery frame 3 is attached to the vehicle body 5
When the battery frame 3 is mounted on the vehicle, the bolts 51 can be fastened while the battery frame 3 is temporarily supported by the vehicle body mounting jig 1 on the vehicle body 5. The vehicle body 5 on the general-purpose lifter 47 may be lowered with respect to the battery frame 3 so as to be placed on the carriage 49, and a dedicated lifter for raising the battery frame 3 may be used. Is unnecessary, and high cost is suppressed.

FIG. 8 shows a work procedure for removing the battery frame 3 mounted on the vehicle body 5. According to this, as shown in FIG. 7A, the four vehicle body mounting jigs 1 are mounted in the state where the vehicle body 5 is raised by the general-purpose lifter 47.
It is attached to the lower surface of the vehicle body 5 using a hexagon wrench. At this time, the support pieces 15 and 17 of the vehicle body mounting jig 1 are in the support positions that are open to the outside, and in this state, they pass through the insertion hole 21a of the battery frame 3 and the male screw portion 11 at the tip end.
Is screwed into a bolt hole on the lower surface of the vehicle body 5, and is fastened and fixed using a hexagon wrench.

At this time, the battery frame 3 has bolts 5
Since it is fixed and closely attached to the lower surface of the vehicle body 5 by means of 1, the clearance C shown in FIG. 3 is provided between the upper ends of the support pieces 15 and 17 of the vehicle body mounting jig 1 and the mounting surface 19 of the battery frame 3. Clearance equivalent to is generated.
In this state, when the bolts 51 are removed, as shown in FIG. 8B, the battery frame 3 is separated from the vehicle body 5 and placed on the support pieces 15 and 17 of the vehicle body mounting jig 1, whereby the battery frame 3 is mounted. 3 is in a state of being temporarily supported by the vehicle body mounting jig 1. In this temporary support state as well, as in the case of the mounting work described above, the electrical contacts 41, 43 provided on the upper ends of the support pieces 15, 17 become conductive via the battery frame 3, and the light emitting diode 39 lights up. This makes it possible to confirm whether or not the battery frame 3 is correctly temporarily supported.

When all the light emitting diodes 39 in the four vehicle body mounting jigs 1 are turned on and it is confirmed that the battery frame 3 is temporarily supported correctly, as shown in FIG. The general-purpose lifter 47 lowers the vehicle body 5 until the vehicle body 5 is placed on the carriage 49. When the battery frame 3 is completely placed on the carriage 49 and the weight of the battery frame 3 no longer acts on the vehicle body mounting jig 1, the vehicle body mounting jig 1 is removed using a hexagonal wrench, and then FIG. As shown in FIG. 5, the general-purpose lifter 47 raises the vehicle body 5, whereby the work of removing the battery frame 3 from the vehicle body 5 is completed.

Even when the battery frame 3 is removed from the vehicle body 5 as described above, the vehicle body 5 on the general-purpose lifter 47 is also removed.
The battery frame 3 which is a heavy load.
A dedicated lifter for supporting the is unnecessary, and the cost is suppressed.

Although the bolt holes on the vehicle body 5 side for fastening the male screw portion 11 of the vehicle body mounting jig 1 may be dedicated to the vehicle body mounting jig 1, the bolts 51 for fixing the battery frame 3 to the vehicle body 5 are provided. You may make it also use the bolt hole to fasten.

[Brief description of the drawings]

FIG. 1 is a front view of a vehicle body mounting jig according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a cross-sectional view of an essential part showing a state where the battery frame is temporarily supported on the lower surface of the vehicle body by the vehicle body mounting jig of FIG.

FIG. 4 is an exploded perspective view showing a structure in which a plurality of batteries are incorporated in a battery frame fixed to the lower surface of the vehicle body.

5 is a perspective view of a support piece in the vehicle body mounting jig of FIG. 1. FIG.

FIG. 6 is a perspective view in which a supporting piece of the vehicle body mounting jig of FIG. 1 is omitted.

FIG. 7 is a work process diagram showing a procedure for mounting a battery frame on a vehicle body using the vehicle body mounting jig shown in FIG. 1;

8 is a work process diagram showing a procedure for removing a battery frame from a vehicle body using the vehicle body mounting jig shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle mounting jig 3 Battery frame 5 Vehicle body 6 Battery 11 Male screw part (fixing part) 13 Rod (operating part) 15, 17 Support piece (supporting part) 19a Insert hole 19b Rib part (peripheral part of insertion hole) 39 Light emitting diode ( Confirmation lamp) 41,43 Electrical contact 51 Bolt (fastener)

Claims (5)

[Claims] 1. A body mounting jig for a battery frame, which is used for fastening and fixing a battery frame in which a plurality of batteries are incorporated to a lower surface of a vehicle body with a fastener, and is provided at one end side and fixed to the lower surface of the vehicle body. Fixed part,
An operating portion provided on the other end side and operated when fixing the fixing portion to the lower surface of the vehicle body, and the battery provided between the operating portion and the fixing portion and with the fastener removed. A supporting portion for temporarily supporting the battery frame by mounting the peripheral portion of the insertion hole into which the fixing portion of the frame is inserted at the upper end, and the supporting portion from the supporting position for temporarily supporting the battery frame, When the battery frame and the lower surface of the vehicle body are brought closer to each other while aligning the insertion hole with the tip of the operation portion while the fixing portion is fixed to the vehicle body, the battery frame and the lower surface of the vehicle body are pushed by the peripheral portion of the insertion hole and are pushed inward. To a storage position in which the peripheral portion of the insertion hole of the battery frame is moved to a position between the support portion and the lower surface of the vehicle body. 2. A pair of electrical contacts is provided at an upper end of a support portion that comes into contact with the battery frame when the battery frame is temporarily supported, and the pair of electrical contacts are electrically conducted through the battery frame. The vehicle frame mounting jig for a battery frame according to claim 1, further comprising a confirmation lamp that lights up. 3. A plurality of vehicle body mounting jigs are respectively fixed to a lower surface of a vehicle body by a fixing portion provided at one end side thereof, and a tip of an operation portion provided at the other end side with respect to the fixed vehicle body mounting jigs. The battery frame and the lower surface of the vehicle body are brought closer to each other while aligning the insertion holes provided in the battery frame, and at the time of this approaching operation, the peripheral portion of the insertion hole comes into contact with the support portion provided in the vehicle body mounting jig. When the peripheral portion of the insertion hole is located between the lower surface of the vehicle body and the supporting portion, the supporting portion is displaced outward, and in this state, the vehicle body and the battery frame are separated from each other. , The upper end of the supporting portion contacts the lower surface of the peripheral portion of the insertion hole to temporarily support the battery frame,
A method for mounting a battery frame on a vehicle body, comprising fastening and fixing the battery frame to a lower surface of the vehicle body with a fastener in the temporarily supported state. 4. The plurality of vehicle body mounting jigs have different operating portions, and when the battery frame and the vehicle body are brought close to each other, the battery frame insertion hole and the operating portion are arranged in order from the longest operating portion. 4. The method for mounting a battery frame on a vehicle body according to claim 3, wherein the tips of the battery frames are sequentially aligned. 5. The fixing part is attachable / detachable to / from the vehicle body by screw connection, and a tool mounting part for performing attachment / detachment operation by the screw connection is provided at a tip of the operation part. The vehicle body mounting jig for a battery frame according to claim 1.