JP2021123228A - Cab suspension support structure - Google Patents

Abstract

To mount a cab suspension on a cab rear member such that the cab suspension is raised, while securing a fixing area for other members in the cab rear member.SOLUTION: A cab rear member 12 has a member upper plate portion 18 intersecting with a vertical direction, a member front plate portion 19 and a member rear plate portion. A filter mounting bracket 23 is fixed to the front surface of the member front plate portion 19. A raising bracket 16 is a member having a substantially L-shaped cross-section and has a bracket upper plate portion 25 and a bracket rear plate portion 26. A reinforcement spacer 15 is fixed to the bracket upper plate portion 25 in advance, with its upper surface being in surface contact with the lower surface of the bracket upper plate portion 25, is placed on the upper surface of the member upper plate portion 18 of the cab rear member 12 and is fixed to the member upper plate portion 18 together with the raising bracket 16. The bracket rear plate portion 26 is close to or in contact with the rear surface of the member rear plate portion of the cab rear member 12 from behind.SELECTED DRAWING: Figure 4

Description

The present disclosure relates to a cab suspension support structure.

Patent Document 1 describes a vehicle in which the rear end side of the cab is supported by a vehicle body frame via a cab rear member and an air suspension. The cab rear member has a pair of left and right vertical brackets whose lower ends are fixed to the left and right side members and stands up in a substantially vertical direction, and the upper ends are fixed to the upper ends of the left and right vertical brackets to connect the upper ends. It has a rear cab mount bracket and is formed in an arch shape. The rear cab mount bracket is a metal member formed in a hat shape in cross section by a flat plate-shaped upper plate portion, a flat plate-shaped front and rear vertical plate portions, and a flat plate-shaped front and rear flange portions, and has a vehicle width. It extends in a long shape in the direction. The upper ends of the left and right vertical brackets are fixed to the lower surface side of the left and right support ends of the rear cab mount bracket, and the left and right air suspensions are fixed to the upper surface side of the left and right support ends.

Japanese Unexamined Patent Publication No. 2017-178067

By the way, there is a case where it is desired to raise the air suspension (cab suspension) and install it at a high position without changing the height of the cab rear member. In this case, for example, a raising bracket for raising the cab suspension is formed in a U-shaped cross section that is opened downward, and the raising bracket is used as a rear cab mount bracket for the cab rear member described in Patent Document 1 (hereinafter referred to as “1”). It is conceivable to arrange it so as to straddle the convex portion formed by the vertical plate portion and the upper plate portion before and after the cab rear member (simply referred to as "cab rear member") and fix it to the cab rear member. However, other members may be fixed to the vertical plate portions in front of and behind the cab rear member. Therefore, if the raised bracket is arranged so as to straddle the convex portion of the cab rear member, the above other members may be fixed. It can be difficult to secure an area for fixing. When the other member is fixed to the raising bracket, the other member is fixed to the cab rear member via the raising bracket, so that it is necessary to firmly fix the raising bracket to the cab rear member. , There is a possibility that the work of fixing the other members to the cab rear member becomes complicated.

Therefore, an object of the present disclosure is to provide a cab suspension support structure that can be attached to the cab rear member in a raised state while securing a fixing area for other members in the cab rear member.

In order to solve the above problems, the first aspect of the present invention is a cab suspension support structure that supports the rear end portion of the cab from below and supports the cab suspension for suppressing the vibration of the cab from the vehicle body frame side. A cab rear member, a spacer, and a raised bracket having a substantially L-shaped cross section are provided. The cab rear member includes a member upper plate portion that extends in the vehicle width direction above the vehicle body frame while intersecting the vertical direction, a member front plate portion that bends from the front end side of the member upper plate portion and extends downward, and a member upper plate portion. It has a member rear plate portion that bends from the rear end side of the plate portion and extends downward, and is supported by the vehicle body frame from below. The spacer is placed on the upper surface of the member upper plate portion. The raised bracket having a substantially L-shaped cross section is provided from the bracket upper plate portion which is arranged above the spacer and is supported from below by the member upper plate portion via the spacer, and from one end edge of the bracket upper plate portion in the front-rear direction. It has a bracket vertical plate portion that extends downward and approaches or contacts the plate portion on one side of the member front plate portion or the member rear plate portion from the one side, and is fixed to the cab rear member and is fixed to the cab. The suspension is supported from below by the upper plate of the bracket.

In the above configuration, the spacer is placed on the upper surface of the member upper plate portion of the cab rear member, the bracket upper plate portion of the raised bracket is arranged above the spacer, and is supported from below by the member upper plate portion via the spacer. The cab suspension is supported from below by the bracket top plate. Therefore, the cab suspension can be raised (arranged at a position separated upward from the member upper plate portion).

Further, the raised bracket is the above-mentioned of the bracket upper plate portion that supports the cab suspension from below and the member front plate portion or the member rear plate portion that extends downward from one end edge of the bracket upper plate portion in the front-rear direction. It is formed in a substantially L-shaped cross section having a bracket vertical plate portion that is close to or contacts the plate portion on one side from the one side. That is, since the other side plate portion in the front-rear direction of the member front plate portion or the member rear plate portion of the cab rear member is not covered by the raised bracket having a substantially L-shaped cross section, the other members can be attached to the cab rear member. When fixing to the plate portion on the other side, it is possible to reliably prevent the raising bracket from covering the fixing area of the plate portion on the other side for fixing the other member. Therefore, it is possible to secure a fixing region for the other member on the plate portion on the other side of the cab rear member.

Therefore, according to the above configuration, the cab suspension can be attached to the cab rear member in a raised state while securing a fixed area for other members on the cab rear member.

Further, the bracket vertical plate portion of the raised bracket extends downward from the end edge on the one side of the bracket upper plate portion to the plate portion on the one side of the member front plate portion or the member rear plate portion from the one side. Since they are close to each other or come into contact with each other, the rotation of the raised bracket about the axis extending in the vertical direction can be prevented by the contact between the vertical plate portion of the bracket and the plate portion on one side. For this reason, even when the cab suspension is rotated and fixed around the axis extending in the vertical direction with respect to the bracket upper plate portion of the raised bracket, it is necessary to prevent the raised bracket from rotating when fixing the cab suspension. Therefore, it is possible to prevent the cab suspension from being complicated in the fixing work.

The second aspect of the present invention is the cab suspension support structure of the first aspect, which includes a reinforcing member. The reinforcing member is arranged below the other end edge extending in the vehicle width direction on the other side of the bracket upper plate portion in the front-rear direction, and is fixed to the other end edge portion of the bracket upper plate portion in a state of extending in the vehicle width direction. NS.

In the above configuration, since the reinforcing member is fixed to the other end edge portion of the bracket upper plate portion in a state of extending in the vehicle width direction, the other end edge portion of the bracket upper plate portion can be reinforced by the reinforcing member. As described above, the one side of the bracket upper plate portion is reinforced by the bracket vertical plate portion extending downward from the end edge of the one side, and the other side of the bracket upper plate portion is reinforced by the reinforcing member. The strength of the bracket upper plate can be ensured.

A third aspect of the present invention is the cab suspension support structure of the second aspect, wherein the spacer and the reinforcing member are integrally molded.

In the above configuration, since the spacer and the reinforcing member are integrally molded, the number of parts can be reduced.

According to the present disclosure, the cab suspension can be attached to the cab rear member in a raised state while securing a fixing area for other members on the cab rear member.

It is a side view of the front part of the vehicle to which the cab suspension support structure which concerns on one Embodiment of this invention is applied. It is a schematic rear view of the cab of FIG. It is a perspective view which looked at the outer end part in the vehicle width direction of a cab rear member from the front. It is an enlarged view of the main part of FIG. FIG. 4 is a perspective view of FIG. 4 viewed from the rear. It is a perspective view of a raised bracket and a reinforcing spacer. FIG. 4 is a schematic plan view of FIG. 4 viewed from above.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In each figure, FR indicates the front of the vehicle, UP indicates the upper side, and IN indicates the inner side in the vehicle width direction. Further, in the following description, the front-rear direction means the front-rear direction of the vehicle, and the left-right direction means the left-right direction in a state of facing the front of the vehicle.

As shown in FIGS. 1 and 2, the cab suspension support structure according to the present embodiment is applied to a structure in which the cab 2 supports the cab suspension 4 of the cab-over type vehicle 1 in which the cab 2 is generally arranged above the engine 3. NS. The cab 2 has a normal position in which the lower part of the rear end of the cab 2 is supported from below (the position of the cab 2 shown in FIG. 1) and a tilt position in which the lower part of the rear end of the cab 2 is rotationally moved forward and upward from the normal position. It is possible to move between (not shown). The lower front end of the cab 2 is rotatably supported with the front cab mount 6 provided at the front end of the vehicle body frame 5 as a rotation axis. The lower part of the rear end of the cab 2 is elastically supported from the vehicle body frame 5 side via the rear cab mount 10.

The vehicle body frame 5 is arranged on both sides in the vehicle width direction below the vehicle 1, and extends in the vehicle width direction between a pair of left and right side members 7 extending in the front-rear direction and left and right side members 7. It has a plurality of cross members 8 (only one cross member 8 is shown in FIG. 2) that connects the members 7 to each other.

The rear cab mount 10 includes an arch-shaped cab rear member 12 fixed to the left and right side members 7 via the left and right vertical brackets 11, a pair of left and right cab suspensions 4 attached to the upper surface of the cab rear member 12, and a pair of left and right cab suspensions 4. It has a floating member 13 fixed to the upper surface side of the left and right cab suspensions 4 and a pair of left and right strikers 14 fixed to the floating member 13. The left and right vertical brackets 11 stand up in a substantially vertical direction with their lower ends fixed to the left and right side members 7. The upper ends of the left and right vertical brackets 11 are fixed to both ends of the cab rear member 12 in the vehicle width direction. The cab rear member 12 is arranged above the vehicle body frame 5 and extends in the vehicle width direction. The left and right cab suspensions 4 are substantially cylindrical air suspensions in the present embodiment, and are attached to both ends of the cab rear member 12 in the vehicle width direction. The floating member 13 extends above the cab rear member 12 in the vehicle width direction and is elastically supported by the cab rear member 12 via the left and right cab suspensions 4. The left and right strikers 14 are symmetrically provided on the upper surface side of the floating member 13 and project upward. A pair of left and right cab block brackets 17 corresponding to the left and right strikers 14 of the rear cab mount 10 are provided at the lower part of the rear end of the cab 2. The left and right cab block brackets 17 have a locking device (not shown) inside, and the locking devices of the left and right cab block brackets 17 hold the left and right strikers 14 of the rear cab mount 10 in a state where the cab 2 is arranged at a normal position. By locking and locking, the cab 2 is held in the normal position in the normal state (the state shown in FIG. 1). When the left and right cab block brackets 17 are unlocked by the locking device, the cab 2 can be moved from the normal position to the tilt position. The rear cab mount 10 in the normal state elastically supports the lower part of the rear end of the cab 2 from below via the left and right cab suspensions 4 and the like.

As shown in FIG. 3, the cab rear member 12 has a flat plate-shaped member upper plate portion 18 that intersects the vertical direction and a flat plate-shaped member upper plate portion 18 that bends downward from the front end edge of the member upper plate portion 18 and intersects the front-rear direction. The member front plate portion 19, the flat plate-shaped member rear plate portion 20 that bends downward from the rear end edge of the member upper plate portion 18 and intersects the front-rear direction, and the lower ends of the member front plate portion 19 and the member rear plate portion 20. It is formed in the shape of a hat in cross section by the front and rear flange portions 21 and 22 having a flat plate shape extending forward or backward from the edge. The cab rear member 12 according to the present embodiment is formed in an arch shape in which the central portion in the vehicle width direction is curved upward from the outer end portion in the vehicle width direction. The left and right ends of the cab rear member 12 are fixed to the upper ends of the left and right vertical brackets 11 and are supported from below by the vehicle body frame 5 via the left and right vertical brackets 11 (see FIG. 2). The left and right cab suspensions 4 are attached to the upper surfaces of the left and right ends of the cab rear member 12 in a raised state.

In the present embodiment, the cab suspension support structure according to the present disclosure is applied to a structure in which the left cab suspension 4 is attached to the left end of the cab rear member 12 in a raised state. A fuel filter (not shown) is attached to the front surface of the member front plate portion 19 of the left end portion of the cab rear member 12 (hereinafter, referred to as “the outer end portion of the cab rear member 12 in the vehicle width direction”). The filter mounting bracket 23 for mounting on is fixed by welding. The filter mounting bracket 23 is provided with a bolt insertion hole 24 for fixing the fuel filter. On the upper surface side of the outer end portion of the cab rear member 12 in the vehicle width direction, the left cab suspension 4 (hereinafter, simply referred to as "cab suspension 4") is raised by a reinforcing spacer (spacer, reinforcing member) 15 and a raising bracket 16. It is installed in the state where it is installed.

As shown in FIG. 4, a bolt insertion hole (not shown) for fixing the raised bracket 16 and a cab suspension 4 are attached to the outer end portion of the member upper plate portion 18 of the cab rear member 12 in the vehicle width direction. Suspension locking hole 27 is formed.

As shown in FIGS. 4 to 7, the raising bracket 16 is a member having a substantially L-shaped cross section, and has a bracket upper plate portion 25 intersecting the vertical direction and one end of the bracket upper plate portion 25 in the front-rear direction. It has a bracket rear plate portion (bracket vertical plate portion) 26 that bends from an edge (rear end edge in the present embodiment) and extends downward, and is fixed to the cab rear member 12. A plate-shaped reinforcing spacer 15, which will be described later, is fixed to the lower surface side of the bracket upper plate portion 25. The bracket upper plate portion 25 is arranged above the member upper plate portion 18 with the reinforcing spacer 15 sandwiched between the bracket upper plate portion 25 and the upper surface of the member upper plate portion 18 of the cab rear member 12. That is, the bracket upper plate portion 25 is arranged at a position (raised position) upwardly separated from the member upper plate portion 18 of the cab rear member 12 by the reinforcing spacer 15. With the raised bracket 16 fixed to the cab rear member 12, the front end edge portion (other end edge portion) 25a of the bracket upper plate portion 25 is located slightly behind the front end edge portion 18a of the member upper plate portion 18. The bracket rear plate portion 26 extends in the vehicle width direction, and the bracket rear plate portion 26 approaches or contacts the rear surface of the member rear plate portion 20 of the cab rear member 12 from the rear.

The bracket upper plate portion 25 is formed with a bolt insertion hole 28 for fixing the bracket upper plate portion 25 to the member upper plate portion 18 and a suspension locking hole 29 for attaching the cab suspension 4. The bolt insertion hole 28 of the bracket upper plate portion 25 is formed at a position where it communicates vertically with the bolt insertion hole of the member upper plate portion 18. The suspension locking hole 29 of the bracket upper plate portion 25 is formed at a position where it communicates vertically with the suspension locking hole 27 of the member upper plate portion 18. The suspension locking holes 27 and 29 of the member upper plate portion 18 and the bracket upper plate portion 25 are formed so that two locking protrusions (not shown) protruding downward from the cab suspension 4 can be inserted from above. ..

The reinforcing spacer 15 functions as a spacer for arranging the bracket upper plate portion 25 of the raised bracket 16 at a position separated upward from the member upper plate portion 18 of the cab rear member 12, and the front end edge of the bracket upper plate portion 25. It has both functions as a reinforcing member for reinforcing the portion 25a. That is, the reinforcing spacer 15 is a reinforcing member / spacer in which the reinforcing member and the spacer are integrally molded. The reinforcing spacer 15 has a flat plate shape that intersects in the vertical direction, and is formed in a substantially T shape when viewed from above. The reinforcing spacer 15 is fixed to the bracket upper plate portion 25 with its upper surface in surface contact with the lower surface of the bracket upper plate portion 25. The reinforcing spacer 15 has a first region 15a extending in the vehicle width direction below the front end edge portion 25a of the bracket upper plate portion 25, and a second region 15b extending rearward from the central portion of the first region 15a in the vehicle width direction. Have one. The first region 15a is linearly welded to the front end edge portion 25a of the bracket upper plate portion 25 in a state of being in contact with the lower surface of the front end edge portion 25a of the bracket upper plate portion 25 from below, and the front end edge of the bracket upper plate portion 25. Reinforce the portion 25a. The second region 15b has a bolt insertion hole 32 communicating with the bolt insertion hole 28 of the bracket upper plate portion 25, and is linearly welded to the bracket upper plate portion 25 in a state of being in contact with the lower surface of the bracket upper plate portion 25. NS. The reinforcing spacer 15 is placed on the upper surface of the member upper plate portion 18 of the cab rear member 12 in a state of being fixed to the bracket upper plate portion 25 of the raising bracket 16, and is bolted together with the raising bracket 16 to the member upper plate portion 18. It is fastened and fixed by 30. The lower surfaces of both the first region 15a and the second region 15b of the reinforcing spacer 15 come into surface contact with the upper surface of the member upper plate portion 18 of the cab rear member 12. The first region 15a and the second region 15b of the reinforcing spacer 15 are arranged at positions that do not interfere with the suspension locking holes 27 and 29 of the member upper plate portion 18 and the bracket upper plate portion 25.

When the raised bracket 16 is attached to the cab rear member 12 together with the reinforcing spacer 15, the bolt insertion holes 28 and 32 of the bracket upper plate portion 25 and the reinforcing spacer 15 are inserted into the bolt insertion holes 28 and 32 of the member upper plate portion 18 of the cab rear member 12. Insert and tighten the bolt 30 in a state of communicating with the hole. In the present embodiment, the bolt 30 is fastened with the stopper member 31 for suppressing the movement of the cab suspension 4 in the direction intersecting the vertical direction mounted above the bracket upper plate portion 25.

When the cab suspension 4 is attached to the cab rear member 12, the two locking projections (not shown) of the cab suspension 4 are raised from above the bracket upper plate portion 25 of the bracket 16 to the bracket upper plate portion 25. It is inserted into the suspension locking hole 29 and the suspension locking hole 27 of the member upper plate portion 18 of the cab rear member 12. By rotating the cab suspension 4 from this state (rotating it around an axis extending in the vertical direction), the two locking protrusions of the cab suspension 4 lock the suspension of the member upper plate portion 18 and the bracket upper plate portion 25. The cab suspension 4 is attached to the cab rear member 12 by being locked in the holes 27 and 29. When the cab suspension 4 is attached to the cab rear member 12, the lower surface of the cab suspension 4 comes into contact with the upper surface of the bracket upper plate portion 25 of the raised bracket 16.

In the above configuration, the lower surface of the reinforcing spacer 15 contacts the upper surface of the member upper plate portion 18 of the cab rear member 12, and the lower surface of the bracket upper plate portion 25 of the raised bracket 16 contacts the upper surface of the reinforcing spacer 15, and the bracket upper plate The lower surface of the cab suspension 4 comes into contact with the upper surface of the portion 25. That is, the cab suspension 4 is separated (raised) upward from the upper surface of the member upper plate portion 18 of the cab rear member 12 by the bracket upper plate portion 25 of the reinforcing spacer 15 and the raised bracket 16. Attached to. Therefore, the cab suspension 4 can be raised (arranged at a position separated upward from the member upper plate portion 18).

Further, the raised bracket 16 is a bracket upper plate portion 25 that supports the cab suspension 4 from below, and a rear bracket that extends downward from the rear end edge of the bracket upper plate portion 25 and approaches or contacts the member rear plate portion 20 from the rear. It is formed in a substantially L-shaped cross section having a plate portion 26. That is, since the front surface of the member front plate portion 19 of the cab rear member 12 is not covered by the raised bracket 16, the member front plate portion 19 is used to fix another member (in this embodiment, the filter mounting bracket 23). It is possible to reliably prevent the raised bracket 16 from covering the fixed area provided on the front surface. Therefore, a fixing area for fixing the other member can be secured on the front surface of the member front plate portion 19.

Therefore, according to the present embodiment, the cab suspension 4 can be attached to the cab rear member 12 in a raised state while securing a fixing area for the other members on the member front plate portion 19 of the cab rear member 12. can.

Further, since the bracket rear plate portion 26 of the raising bracket 16 approaches or contacts the rear surface of the member rear plate portion 20 of the cab rear member 12 from the rear, the rotation of the raising bracket 16 about the axis extending in the vertical direction is bracketed. It can be prevented by the contact between the rear plate portion 26 and the member rear plate portion 20. Therefore, even when the cab suspension 4 is attached to the cab rear member 12 and is rotated about a shaft extending in the vertical direction, the raising bracket 16 is rotated (rotated) when the cab suspension 4 is attached. Since it can be prevented, it is possible to prevent the cab suspension 4 from being complicated in the fixing work.

Further, the first region 15a of the reinforcing spacer 15 is linearly welded to the front end edge portion 25a of the bracket upper plate portion 25 in a state of being in contact with the lower surface of the front end edge portion 25a of the bracket upper plate portion 25 of the raised bracket 16 from below. The front end edge portion 25a of the bracket upper plate portion 25 is reinforced. In this way, the rear end edge side of the bracket upper plate portion 25 is reinforced by the bracket rear plate portion 26, and the front end edge portion 25a side of the bracket upper plate portion 25 is reinforced by the first region 15a of the reinforcing spacer 15. , The strength of the bracket upper plate portion 25 can be ensured. Therefore, in order to secure a fixing area for fixing the other members on the front surface of the member front plate portion 19, the raised bracket 16 is formed to have an L-shaped cross section instead of a U-shaped cross section that opens downward. Even if it is difficult to secure the strength of the upper plate portion 25 on the front end edge portion 25a side, the strength of the bracket upper plate portion 25 on the front end edge portion 25a side should be secured by the first region 15a of the reinforcing spacer 15. Can be done.

Further, the reinforcing spacer 15 functions as a spacer for arranging the bracket upper plate portion 25 of the raised bracket 16 at a position separated upward from the member upper plate portion 18 of the cab rear member 12, and the bracket upper plate portion 25. It has both functions as a reinforcing member for reinforcing the front end edge portion 25a. As described above, since the reinforcing spacer 15 is a reinforcing member / spacer in which the reinforcing member and the spacer are integrally molded, the number of parts can be reduced unlike the case where the reinforcing member and the spacer are molded separately. can.

In the present embodiment, the bracket upper plate portion 25 of the raised bracket 16 functions as a spacer for arranging the bracket upper plate portion 25 at a position separated upward from the member upper plate portion 18 of the cab rear member 12, and the bracket upper plate portion 25 A reinforcing spacer 15 having both functions as a reinforcing member for reinforcing the front end edge portion 25a is provided, but the present invention is not limited to this. For example, the first region 15a and the second region 15b of the reinforcing spacer 15 may be molded separately, the first region 15a may function as the reinforcing member, and the second region 15b may function as the spacer. In this case, the first region 15a that functions as the reinforcing member may be formed thinner than the second region 15b that functions as the spacer.

Further, in the present embodiment, the reinforcing spacer 15 is formed in a substantially T shape when viewed from above, but the shape of the reinforcing spacer 15 is not limited to this, and various shapes can be applied.

Further, in the present embodiment, the filter mounting bracket 23 is used as another member fixed to the member front plate portion 19 of the cab rear member 12, but the other members are not limited to this.

Further, in the present embodiment, in order to secure a fixing area for fixing the other member (filter mounting bracket 23) on the front surface of the member front plate portion 19 of the cab rear member 12, the raised bracket 16 is provided on the bracket upper plate portion 25. It is formed in a substantially L-shaped cross section having the bracket rear plate portion (bracket vertical plate portion) 26, but the present invention is not limited to this. For example, when fixing another member to the rear surface of the member rear plate portion 20 of the cab rear member 12, the raised bracket 16 has a cross section having a bracket upper plate portion 25 and a bracket front plate portion (bracket vertical plate portion). It may be formed in a substantially L shape.

Further, in the present embodiment, the cab rear member 12 has a cross-sectional hat shape, but the present invention is not limited to this, and has at least a member upper plate portion 18, a member front plate portion 19, and a member rear plate portion 20. It should be.

Further, in the present embodiment, the cab rear member 12 has an arch shape in which the central portion in the vehicle width direction is curved upward from the outer end portion in the vehicle width direction, but the present invention is not limited to this, and the cab suspension 4 is lowered. Other shapes may be used as long as they can be supported from the above.

Further, in the present embodiment, the cab suspension 4 is an air suspension, but other types of suspension may be used as long as the rear end side of the cab 2 can be elastically supported.

Further, in the present embodiment, the cab suspension 4 is attached by rotating the cab suspension 4 about a shaft extending in the vertical direction with respect to the cab rear member 12, but the attachment method of the cab suspension 4 is not limited to this.

Further, in the present embodiment, the cab suspension support structure according to the present disclosure is applied to a structure in which the left cab suspension 4 is attached to the left end of the cab rear member 12, but the right cab suspension 4 is attached to the cab rear. It may be applied to a structure attached to the right end of the member 12.

Although the present invention has been described above based on the above-described embodiment, the present invention is not limited to the contents of the above-described embodiment, and can be appropriately modified without departing from the present invention. That is, it goes without saying that all other embodiments, examples, operational techniques, and the like made by those skilled in the art based on this embodiment are included in the category of the present invention.

The cab suspension support structure according to the present disclosure can be widely applied to a vehicle in which the rear end portion of the cab is elastically supported from the vehicle body frame side by the cab suspension.

1: Vehicle 2: Cab 4: Cab suspension 5: Body frame 12: Cab rear member 15: Reinforcing spacer (reinforcing member, spacer)
16: Raised bracket 18: Member upper plate 19: Member front plate 20: Member rear plate 25: Bracket upper plate 25a: Front end edge of bracket upper plate (other end edge)
26: Bracket rear plate (bracket vertical plate)

Claims (3)

It is a cab suspension support structure that supports the rear end of the cab from below and supports the cab suspension for suppressing the vibration of the cab from the vehicle body frame side.
A member upper plate portion extending in the vehicle width direction above the vehicle body frame in a state of being crossed in the vertical direction, a member front plate portion that bends from the front end side of the member upper plate portion and extends downward, and the member upper plate portion. A cab rear member that has a member rear plate portion that bends from the rear end side and extends downward, and is supported from below by the vehicle body frame.
A spacer placed on the upper surface of the member upper plate portion,
The bracket upper plate portion which is arranged above the spacer and is supported from below by the member upper plate portion via the spacer, and the bracket upper plate portion which extends downward from one end edge in the front-rear direction of the bracket upper plate portion. The cab suspension is fixed to the cab rear member and has a bracket vertical plate portion that is close to or contacts the member front plate portion or the plate portion on the one side of the member rear plate portion from the one side. A cab suspension support structure comprising: a raised bracket having a substantially L-shaped cross section, which is supported from below by the bracket upper plate portion. The cab suspension support structure according to claim 1.
It is arranged below the other end edge extending in the vehicle width direction on the other side of the bracket upper plate portion in the front-rear direction, and is fixed to the other end edge portion of the bracket upper plate portion in a state of extending in the vehicle width direction. A cab suspension support structure characterized by having a reinforcing member. The cab suspension support structure according to claim 2.
A cab suspension support structure characterized in that the spacer and the reinforcing member are integrally molded.

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