JP2017144884A - Rear face part structure of cab - Google Patents

Abstract

An object of the present invention is to ensure the strength of the rear surface of a cab of a high roof type vehicle against a load from above or below. A cab (10) includes a cab body (11) and a high roof portion (12). A mount bracket fixing portion 18 of the rear cab mount rail 15 of the cab body 11 is supported by the vehicle body frame 4 from below. A lower end portion 36 a of the back panel reinforcement 36 of the cab body 11 is fixed to the mount bracket fixing portion 18 , and an upper end portion 36 b of the back panel reinforcement 36 is arranged at the upper edge portion 34 a of the cab back panel 34 . The lower end portions 25 of the rear reinforcement portions 40b and 41b of the roof reinforcements 40 and 41 of the high roof portion 12 are arranged above the upper end portion 36b of the back panel reinforcement . The upper end portions 26 of the rear surface reinforcing portions 40b and 41b are arranged at the upper edge portion 42 of the panel rear surface portion 30e of the roof panel 30. As shown in FIG. [Selection drawing] Fig. 3

Description

  The present invention relates to a rear surface structure of a cab of a high roof type vehicle.

  Patent Document 1 describes a high roof structure of a truck cab. This cab has a high roof that is sufficiently higher than a normal standard cab. The high roof is composed of a roof main body made of a resin material and a flange member made of a thin steel plate at a peripheral portion of the roof main body. A drip rail is coupled to the roof rail outer and the roof rail inner of the cab. The high roof flange member is fixed to the drip rail on the cab side by spot welding.

Japanese Utility Model Publication No. 1-170072

  In the high roof type cab described in Patent Document 1, the cab below the drip rail (hereinafter referred to as the cab body) and the high roof are formed separately, and the cab body and the high roof are fixed (joined). Formed by. For this reason, when a downward or upward load is input to the rear surface of the cab from the upper or lower side of the cab, the load may concentrate on the joint portion between the cab body and the high roof on the rear surface of the cab. It is difficult to ensure the strength of the rear surface of the cab.

  Therefore, an object of the present invention is to provide a rear surface structure of a cab capable of ensuring the strength of the rear surface of a cab of a high roof type vehicle against a load from above or below.

  In order to solve the above problems, the present invention is a rear surface structure of a cab of a high roof type vehicle in which a cab main body is disposed above a body frame and a high roof portion is fixedly provided above the cab main body. A mounting rail, a body-side back panel, a body-side reinforcement, a roof-side back panel, and a roof-side reinforcement are provided. The rear mount rail has a supported portion that is supported by the vehicle body frame from below, and extends in the vehicle width direction at the lower portion of the rear end of the cab body. The main body-side back panel stands up at the rear end of the cab body along the rear mount rail to partition the rear of the cab body. The main body side reinforcement has a main body side lower end portion fixed to the supported portion of the rear mount rail, and a main body side upper end portion disposed on the upper edge portion of the main body side back panel. It extends linearly continuously along the main body side back panel between the upper end of the side and is fixed to the main body side back panel to reinforce the main body side back panel. The roof side back panel extends upward continuously from the upper edge portion of the main body side back panel, stands up at the rear end of the high roof portion, and defines the rear of the high roof portion. The roof-side reinforcement is arranged above the upper end of the main body side of the main body side of the main body side of the roof, and is connected to the upper end of the main body side, and the upper end of the roof side of the roof side back panel. Between the roof-side lower end and the roof-side upper end and continuously extending along the roof-side back panel, and is fixed to the roof-side back panel to reinforce the roof-side back panel.

  In the above configuration, the roof-side lower end portion of the roof-side reinforcement is disposed above the main-body-side upper end portion of the main-body-side reinforcement and continues to the main-body-side upper end portion. That is, since the roof side reinforcement and the main body side reinforcement continuously extend in the vertical direction between the upper edge of the roof side back panel and the rear mounting rail, the rear side of the cab can be viewed from above or below the cab. When a downward or upward load is input to the surface (including both back panels and both reinforcements) (hereinafter simply referred to as load input), it is efficient between the high roof side and the cab body side. A load can be transmitted. For this reason, compared to the case where the upper end of the main body side of the main body and the lower end of the roof side of the roof side of the roof are arranged at different positions in the vehicle width direction, both the forces are not continuous in the vertical direction. It is possible to prevent stress concentration on a predetermined portion (such as a connection portion between the high roof portion and the cab main body) of the rear surface portion of the cab, and to ensure the strength of the rear surface portion of the cab.

  In addition, the main body side lower end of the main body side reinforcement is fixed to the supported part of the rear mount rail that is supported from below by the body frame, so the load is efficiently transferred from the rear surface of the cab to the body frame side when a load is input. Can communicate well.

  Further, the main body side reinforcement and the roof side reinforcement may extend in a straight line along the vertical direction.

  In the above configuration, since the main body side reinforcement and the roof side reinforcement extend in a straight line along the vertical direction, the load can be more efficiently transmitted between the high roof portion side and the cab main body side when a load is input. Can do.

  The rear surface structure of the cab includes a roof back rail that extends in the vehicle width direction at the upper end edge of the main body side back panel and is fixed to the main body side back panel to reinforce the upper end edge portion of the main body side back panel. The main body side upper end portion of the main body side reinforcement is fixed at a predetermined position in the vehicle width direction of the roof back rail, and the roof side lower end portion of the roof side rail force is fixed to the predetermined position in the vehicle width direction of the roof back rail. By being fixed at the position, the main body side upper end portion may be continued through the roof back rail.

  In the above configuration, since the roof back rail extending in the vehicle width direction is provided at the connecting portion between the roof side reinforcement and the main body side reinforcement, the load transmitted from one of the high roof portion or the cab main body to the other when the load is input. Can be distributed to both sides in the vehicle width direction by the roof back rail. For this reason, for example, in addition to the body side reinforcement, when another reinforcement that extends in the vertical direction is provided between the rear mount rail and the roof back rail, the load is more efficiently distributed when the load is input. It is possible to prevent the concentration of stress on a predetermined portion of the rear surface portion of the cab and to secure the strength of the rear surface portion of the cab.

  ADVANTAGE OF THE INVENTION According to this invention, the intensity | strength of the rear surface part of the cab of a high roof type vehicle with respect to the load from upper direction or the downward direction is securable.

1 is a perspective view of a high roof type vehicle to which a rear surface structure of a cab according to the present invention is applied. It is a schematic rear view of a cab. It is a schematic perspective view of the rear surface part of a cab. It is a perspective view showing a plurality of reinforces of a cab roughly.

  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. Moreover, in the following description, the left-right direction means the left-right direction with the vehicle facing forward.

  As shown in FIG. 1, the rear surface structure of the cab according to the present embodiment is a high roof type in which the roof panel 30 of the cab 10 is bulged upward to enlarge the internal space (vehicle compartment 7) of the cab 10 upward. This is applied to the cab 10 of the truck (vehicle) 1.

  As shown in FIG. 2, the truck 1 has a pair of left and right side members 2 extending across the front and rear of the vehicle, and a plurality of cross members 3 extending in the vehicle width direction and connecting the left and right side members 2 to each other. . The left and right side members 2 and the plurality of cross members 3 constitute a vehicle body frame 4 of the truck 1. The lower portion of the front end of the cab 10 is rotatably supported by the front end portion of the vehicle body frame 4 via a front cab mount (not shown). The rear end lower portion of the cab 10 is supported from below by the vehicle body frame 4 via a rear cab mount 5 fixed to the left and right side members 2. In FIG. 2, only one cross member 3 is shown.

  The cab 10 includes a cab main body 11 and a high roof portion 12 that is disposed above the cab main body 11 and expands the internal space of the cab 10 upward, and is disposed above the front portion of the vehicle body frame 4 of the truck 1. .

  As shown in FIGS. 3 and 4, the cab main body 11 is obtained by removing the high roof portion 12 from the cab 10 of a high roof type vehicle, and includes a cab main body bottom surface portion 11a and a cab main body front surface portion 11b (see FIG. 1). ), A pair of left and right cab main body side portions 11c, and a cab main body rear surface portion 11d.

  The cab main body bottom surface portion 11 a includes a floor panel 13 that intersects with the vertical direction below the passenger compartment 7, and a pair of left and right cab underframes 16 that extend in the front-rear direction below the floor panel 13. Partition. The floor panel 13 has a rear cab mount rail (rear mount rail) 15. The rear cab mount rail 15 is formed by bending the floor panel 13 so as to protrude upward. The rear cab mount rail 15 extends in the vehicle width direction at the rear end edge of the floor panel 13, which is the lower rear end of the cab body 11. Ensure the rigidity of the rear edge. The rear cab mount rail 15 has a pair of left and right mount bracket fixing portions (supported portions) 18. The rear cab mount bracket 6 is fixed to the left and right mount bracket fixing portions 18. The rear cab mount bracket 6 has a lock device (not shown) that can lock the rear cab mount 5 and is supported by the rear cab mount 5 from below. That is, the left and right mounting bracket fixing portions 18 are supported by the vehicle body frame 4 from below. The left and right cab under frames 16 continuously extend forward from the left and right mount bracket fixing portions 18 of the rear cab mount rail 15 and are joined to the lower surface of the floor panel 13.

  The cab main body front surface portion 11b has a front window 21 (see FIG. 1) and a pair of left and right pillars 23 standing on the left and right sides of the front window 21, and stands up along the front edge of the cab main body bottom surface portion 11a. The front of the cab 10 is partitioned. A roof front rail 24 is fixed and extends in the vehicle width direction on the rear surface side of the upper end edge of the cab body front surface portion 11b extending in the vehicle width direction above the front window 21. The roof front rail 24 connects the upper end portions of the left and right pillars 23 and reinforces the upper end edge portion of the cab body front surface portion 11b. The front end edge of the high roof portion 12 is fixed to the upper end edge of the cab body front surface portion 11b as will be described later.

  The left and right cab main body side portions 11c include a door opening 27 that opens the compartment 7 to the side, and a left and right door 29 that opens and closes the door opening 27 (only the left door 29 is shown in FIG. 3). And erected along both end edges in the vehicle width direction of the cab main body bottom surface portion 11a to partition the side of the cab 10 (both sides in the vehicle width direction). The left and right cab body side surface portions 11 c have a plurality of inner panels 37 on the inner side in the vehicle width direction, and are reinforced by the plurality of inner panels 37. The plurality of inner panels 37 include an inner panel 37a that extends continuously from the left and right ends of the rear cab mount rail 15 at the rear edge of the left and right cab main body side portions 11c, and the left and right cab main body side portions 11c. And a roof side rail 37b extending in the front-rear direction at the upper edge. The roof side rail 37b extends rearward continuously from both ends of the roof front rail 24, and is fixedly provided at the upper edge of the left and right cab main body side portions 11c to form a closed cross section. The upper end edge of the part 11c is reinforced. The rear end portion of the roof side rail 37b is connected to the upper end portion of the inner panel 37a. The left and right edge portions of the high roof portion 12 are fixed to the upper edge portions of the left and right cab main body side portions 11c as will be described later. In addition, the some inner panel 37 which reinforces the left and right cab main body side part 11c is not limited above.

  The rear surface portion 11 d of the cab body has a cab back panel (main body side back panel) 34, a roof back rail 35, and a pair of left and right back panel reinforcements (main body side reinforcement) 36. The cab back panel 34 is a plate body that defines the rear of the cab body 11, and stands at the rear end of the cab body 11 along the rear cab mount rail 15. The lower end edge of the cab back panel 34 is fixed to the rear cab mount rail 15. The roof back rail 35 is fixed to the front surface of the upper end edge 34 a of the cab back panel 34 and extends in the vehicle width direction to reinforce the upper end edge 34 a of the cab back panel 34. The left and right end portions of the roof back rail 35 are connected to the rear end portions of the roof side rails 37b of the left and right cab body side surface portions 11c and the upper end portions of the inner panels 37a. The left and right back panel reinforcements 36 are arranged on the left and right sides of the track 1 and are fixed to the front surface of the cab back panel 34, and extend linearly in the vertical direction along the vertical direction. Lower end portions (main body side lower end portions) 36 a of the left and right back panel reinforcements 36 are fixed to the left and right mount bracket fixing portions 18 of the rear cab mount rail 15. Upper end portions (main body side upper end portions) 36 b of the left and right back panel reinforcements 36 are connected to predetermined left and right positions 32 and 33 of the roof back rail 35 in the vehicle width direction. That is, the upper end portions 36 b of the left and right back panel reinforcements 36 are disposed on the upper end edge portion 34 a of the cab back panel 34. The predetermined positions 32 and 33 of the roof back rail 35 in the vehicle width direction are the left and right back panels extending linearly upward along the vertical direction from the left and right mount bracket fixing portions 18 of the rear cab mount rail 15. The reinforcement 36 crosses the roof back rail 35.

  As shown in FIGS. 3 and 4, the high roof portion 12 includes a resin roof panel 30 that bulges upward so as to expand the internal space of the cab 10, and a plurality of (this embodiment) that reinforces the roof panel 30. In the embodiment, it is formed by four roof reinforcements 38, 39, 40, and 41. The high roof portion 12 is disposed above the cab body 11 so as to cover the cab body 11 from above, and is fixed to the cab body 11.

  The plurality of roof reinforcements 38 to 41 are front and rear roof reinforcements 38 and 39 having a substantially inverted U shape, and left and right roof reinforcements 40 and 41 having a substantially inverted L shape, each having a hat shape in cross section. It is formed. The front roof reinforcement 38 is fixed to the roof side rails 37b of the left and right cab main body side portions 11c and extends in a straight line along the vertical direction, and a pair of left and right side reinforcing portions 38a and 38b, and a vehicle width direction. And an upper surface reinforcing portion 38c integrally connecting the upper ends of the left and right side surface reinforcing portions 38a, 38b. The rear roof reinforcement 39 is fixed to the roof side rails 37b of the left and right cab main body side portions 11c and extends in a straight line along the vertical direction, and a pair of left and right side reinforcing portions 39a and 39b, The upper surface reinforcing portion 39c that extends in the direction and connects the upper ends of the left and right side surface reinforcing portions 39a, 39b is integrally formed, and is disposed at a position spaced rearward from the roof reinforcement 38 on the front side. The left and right roof reinforcements 40, 41 are fixed to the upper surface reinforcement portion 39c of the rear roof reinforcement 39 and linearly extend rearward from the upper surface reinforcement portion 39c, and the upper surface reinforcement portions 40a, 40a, The rear reinforcement portions (roof-side reinforcements) 40b and 41b that are bent from the rear end of 41a and extend linearly downward along the vertical direction are integrally provided on the left and right sides of the track 1. The lower end portions (roof side lower end portions) 25 of the rear surface reinforcing portions 40b, 41b of the left and right roof reinforcements 40, 41 are disposed above the upper end portions 36b of the left and right back panel reinforcements 36, and are formed on the rear surface portion 11d of the cab body. The roof back rail 35 is fixed to the predetermined positions 32 and 33 in the vehicle width direction and continues to the upper end portions 36 b of the left and right back panel reinforcements 36 via the roof back rail 35. In other words, the rear reinforcing portions 40b and 41b of the left and right roof reinforcements 40 and 41 and the left and right back panel reinforcements 36 extend in a straight line along the vertical direction.

  The roof panel 30 integrally includes a panel front surface portion 30a (see FIG. 1), a panel upper surface portion 30b, left and right panel side surface portions 30c and 30d, and a panel rear surface portion (roof side back panel) 30e. A space 31 (see FIG. 2) is defined. The panel front surface portion 30a has a lower end edge fixed to the roof front rail 24 of the cab main body front surface portion 11b, extends continuously and obliquely rearward and upward from the upper end edge of the cab main body front surface portion 11b, and the high roof portion 12 Compart the front. The panel upper surface portion 30b bends from the upper edge of the panel front surface portion 30a and extends rearward. The upper surface reinforcement portions 38c, 39c of the front and rear roof reinforcements 38, 39 and the upper surface reinforcement portions 40a of the left and right roof reinforcements 40, 41. , 41a is fixed in a state of being in contact with the upper portion, and defines the upper portion of the high roof portion 12. The left and right panel side surface portions 30c and 30d are bent from both ends in the vehicle width direction of the panel upper surface portion 30b and extend downward, and the side width reinforcing portions 38a, 38b, 39a and 39b of the front and rear roof reinforcements 38 and 39 are It is fixed in a state where it is in contact with the outside in the direction, and stands at both ends in the vehicle width direction of the high roof portion 12 to partition both sides in the vehicle width direction of the high roof portion 12. The lower end edge portions of the left and right panel side surface portions 30c, 30d are fixed to the roof side rails 37b of the upper end edge portions of the left and right cab main body side surface portions 11c. The panel rear surface portion 30e is bent from the rear edge of the panel upper surface portion 30b and extends downward, and is fixed in contact with the rear surface reinforcing portions 40b and 41b of the left and right roof reinforcements 40 and 41 from the rear. The rear end of the high roof portion 12 is defined by standing at the rear end. That is, the upper end portions (roof-side upper end portions) 26 of the rear surface reinforcing portions 40b and 41b of the left and right roof reinforcements 40 and 41 are disposed at the upper end edge portion 42 of the panel rear surface portion 30e. The lower end edge portion of the panel rear surface portion 30e is fixed to the roof back rail 35 at the upper end edge portion of the cab main body rear surface portion 11d.

  In the cab 10 configured as described above, the lower end portions 25 of the rear reinforcing portions 40b, 41b of the left and right roof reinforcements 40, 41 are connected to the upper end portions 36b of the left and right back panel reinforcements 36 via the roof back rails 35. It is continuous. That is, the left and right roof reinforcements 40, 41 have rear surface reinforcement portions 40 b, 41 b and left and right back panel reinforcements 36 between the upper edge of the panel rear surface portion 30 e of the roof panel 30 and the rear cab mount rail 15. Therefore, the rear surface portion of the cab 10 (the panel rear surface portion 30e of the roof panel 30, the rear reinforcement portions 40b and 41b of the left and right roof reinforcements 40 and 41, from above or below the cab 10). And when the load is applied downward or upward (hereinafter simply referred to as load input), the load is efficiently applied between the high roof 12 side and the cab body 11 side. Can be transmitted. For this reason, the upper ends 36b of the left and right back panel reinforcements 36 and the lower end portions 25 of the rear reinforcing portions 40b, 41b of the left and right roof reinforcements 40, 41 are arranged at different positions in the vehicle width direction so Compared to the case where the forces 36, 40b, 41b are not continuous in the vertical direction, the stress concentration on a predetermined portion (for example, a connecting portion between the high roof portion 12 and the cab main body 11) of the rear surface portion of the cab 10 when a load is input is reduced. The strength of the rear surface portion of the cab 10 can be ensured.

  In addition, the rear reinforcement portions 40b and 41b of the left and right roof reinforcements 40 and 41 and the left and right back panel reinforcements 36 extend in a straight line along the vertical direction, so that when the load is input, the high roof portion 12 side and the cab body The load can be transmitted more efficiently between the 11 side and the strength of the rear surface portion of the cab 10 can be ensured.

  Further, the lower end portions 36 a of the left and right back panel reinforcements 36 are fixed to the left and right mounting bracket fixing portions 18 of the rear cab mount rail 15, and the left and right mounting bracket fixing portions 18 are supported by the vehicle body frame 4 from below. Therefore, the load can be efficiently transmitted from the rear surface portion of the cab 10 to the vehicle body frame 4 side when the load is input.

  Further, since the roof back rail 35 extending in the vehicle width direction is provided at the connecting portion between the rear reinforcing portions 40b, 41b of the left and right roof reinforcements 40, 41 and the left and right back panel reinforcements 36, when a load is input The load transmitted from the high roof portion 12 to the cab body 11 can be distributed to both sides in the vehicle width direction by the roof back rail 35. For this reason, when the load is input, the load from the high roof portion 12 side can be distributed to the inner panel 37a side of the left and right cab body side surface portions 11c, and stress concentration on the predetermined portion of the rear surface portion of the cab 10 is prevented. The strength of the rear surface portion of the cab 10 can be ensured.

  Therefore, according to the present embodiment, it is possible to ensure the strength of the rear surface portion of the cab 10 of the high roof type truck 1 against a load from above or below.

  In the present embodiment, the rear cab mount rail 15 formed by bending the floor panel 13 so as to protrude upward is provided, but the present invention is not limited to this. For example, the rear cab mount rail 15 is formed separately from the floor panel 13, and the rear edge of the floor panel 13 and the lower edge of the cab back panel 34 are fixed to the rear cab mount rail 15. Also good.

  In the present embodiment, the rear surface structure of the cab according to the present invention is a cab whose front end lower portion is rotatably supported (tiltable) by the front end portion of the vehicle body frame 4 via a front cab mount (not shown). However, the present invention is not limited to this, and may be applied to the cab 10 that does not tilt. In this case, the rear cab mount rail 15 does not have the left and right mounting bracket fixing portions 18, and a predetermined portion (supported portion) of the rear cab mount rail 15 is directly or indirectly supported from below by the rear cab mount 5. May be.

  Further, in this embodiment, the panel rear surface portion 30e of the roof panel 30 is reinforced by the two roof reinforcements (rear surface reinforcement portions 40b and 41b of the left and right roof reinforcements 40 and 41), but the present invention is not limited to this. Instead, the panel rear surface portion 30e of the roof panel 30 may be reinforced by three or more roof reinforcements. For example, in addition to the rear reinforcing portions 40b and 41b of the left and right roof reinforcements 40 and 41, between the both ends in the vehicle width direction of the roof back rail 35 and the upper edge of the panel rear surface portion 30e of the roof panel 30 in the vertical direction. An extended roof reinforcement or the like may be provided.

  In the present embodiment, the roof back rail 35 and the left and right back panel reinforcements 36 are provided to reinforce the cab back panel 34, but the present invention is not limited to this, and at least the rear cab mount rail 15 is provided. A back panel reinforcement having a lower end portion (main body side lower end portion) fixed to the left and right mounting bracket fixing portions 18 and an upper end portion (main body side upper end portion) disposed at the upper end edge portion 34a of the cab back panel 34. (Main body side reinforcement) may be provided.

  Further, in the present embodiment, the left and right roof reinforcements 40 and 41 are provided, and the panel rear surface portion 30e of the roof panel 30 is reinforced by the rear surface reinforcement portions 40b and 41b of the left and right roof reinforcements 40 and 41. However, the present invention is not limited to this. However, at least an upper end portion (roof side upper end portion) disposed at the upper end edge portion 42 of the panel rear surface portion 30e and a lower end portion (roof side lower end) continuous to the upper end portions 36b of the left and right back panel reinforcements 36. And a roof reinforcement (roof-side reinforcement) having a portion.

  In this embodiment, the left and right roof reinforcements 40, 41 have rear surface reinforcement portions 40b, 41b and left and right back panel reinforcements 36 arranged so as to extend in a straight line along the vertical direction. It is not limited. For example, the rear reinforcement portions 40b and 41b of the left and right roof reinforcements 40 and 41 and the left and right back panel reinforcements 36 may be arranged so as to extend in a straight line while being inclined with respect to the vertical direction. Alternatively, one of the rear reinforcing portions 40b and 41b of the left and right roof reinforcements 40 and 41 and the left and right back panel reinforcements 36 is arranged so as to extend linearly along the vertical direction, and the other in the vertical direction. You may arrange | position so that it may extend linearly in the state inclined with respect to.

  As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to the content of the said embodiment, Of course, it can change suitably in the range which does not deviate from this invention. That is, it is needless to say that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

  For example, in the above-described embodiment, the rear surface structure of the cab according to the present invention is applied to the cab 10 of the high roof type truck 1. However, the present invention is not limited to this, and a high roof type tractor for towing a trailer, etc. It may be applied to the cab.

1: Truck (vehicle)
4: Body frame 10: Cab 11: Cab body 12: High roof portion 15: Rear cab mount rail (rear mount rail)
18: A pair of left and right mounting bracket fixing parts (supported parts)
25: Lower end of the rear reinforcing part of the left and right roof reinforcement (lower end on the roof side)
26: Upper end of rear reinforcement part of left and right roof reinforcement (upper end of roof side)
30: Roof panel 30e: Rear panel of roof panel (roof side back panel)
32, 33: A predetermined position in the vehicle width direction of the roof back rail 34: Cab back panel (main body side back panel)
34a: Upper edge 35 of the cab back panel 35: Roof back rail 36: Back panel reinforcement (main body side reinforcement)
36a: Lower end of back panel reinforcement (lower end on main body side)
36b: Upper end of back panel reinforcement (upper end on main body side)
40, 41: Left and right roof reinforcements 40b, 41b: Rear reinforcement portions of the left and right roof reinforcements (roof-side reinforcement)
42: Upper edge of the rear panel of the roof panel

Claims (3)

A cab rear surface structure of a high roof type vehicle in which a cab body is disposed above a body frame, and a high roof portion is fixedly provided above the cab body,
A rear mount rail having a supported portion supported from below by the vehicle body frame and extending in a vehicle width direction at a lower rear end of the cab body;
A body-side back panel that stands up at the rear end of the cab body along the rear mount rail and divides the rear of the cab body;
A main body side lower end portion fixed to the supported portion of the rear mount rail; and a main body side upper end portion disposed at an upper end edge of the main body side back panel, the main body side lower end portion and the main body side. A body-side reinforcement that extends linearly along the body-side back panel between the upper end portion and is fixed to the body-side back panel to reinforce the body-side back panel;
A roof side back panel that continuously extends upward from the upper edge of the main body side back panel and stands at the rear end of the high roof portion, and defines a rear side of the high roof portion;
A roof-side lower end portion disposed above the body-side upper end portion of the body-side reinforcement and continuing to the body-side upper end portion; and a roof-side upper end portion disposed at an upper end edge portion of the roof-side back panel. And extending linearly continuously along the roof side back panel between the roof side lower end portion and the roof side upper end portion, and fixed to the roof side back panel to reinforce the roof side back panel The rear surface structure of the cab is characterized by comprising a roof-side reinforcement. The cab rear surface structure according to claim 1,
The rear surface portion structure of the cab, wherein the main body side reinforcement and the roof side reinforcement extend in a straight line along a vertical direction. The cab rear surface structure according to claim 1 or 2,
A roof back rail that extends in the vehicle width direction at the upper end edge of the main body side back panel, is fixed to the main body side back panel, and reinforces the upper end edge of the main body side back panel;
The main body side upper end of the main body side reinforcement is fixed at a predetermined position in the vehicle width direction of the roof back rail,
The roof side lower end portion of the roof side reinforcement is fixed to the predetermined position in the vehicle width direction of the roof back rail so as to be continuous with the main body side upper end portion via the roof back rail. The rear structure of the cab is a characteristic.

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