JP5228841B2 - Body superstructure - Google Patents

Description

  The present invention relates to a vehicle body upper structure in which peripheral portions of a front window and a rear window are bonded and fixed to a body shell with an adhesive.

2. Description of the Related Art Conventionally, there is known a vehicle body upper structure in which peripheral portions of a front window and a rear window are bonded and fixed to a body shell with an adhesive. For example, the side part of the front window is bonded and fixed to a pair of front pillars, the upper side part is bonded and fixed to the front edge part of the roof panel, and the lower side part is bonded and fixed to the cowl part. The rear window has a side portion bonded and fixed to the pair of rear pillars, an upper side portion bonded and fixed to the rear edge portion of the roof panel, and a lower side portion bonded and fixed to the rear deck portion (see Patent Document 1). ).
JP 2006-137327 A

  However, in the above-described conventional technology, the frame portion that supports the front window formed by the pair of front pillars, the front edge portion and the cowl portion of the roof panel, or the pair of rear pillars, the rear edge portion of the roof panel, and the rear deck portion. The frame portion that supports the rear window is configured to easily vibrate after the vehicle body is elastically deformed when the vehicle is decelerated, turned, or rides over a protrusion, which adversely affects riding comfort.

  The present invention has been made in view of the above-described conventional problems, and provides a vehicle body upper structure capable of effectively attenuating vibrations in a low frequency region acting on a frame portion that supports a front window or a rear window. The purpose is that.

The first vehicle body upper structure of the present invention includes a substantially quadrilateral front window, a pair of front pillars to which the front window is fixed, and both ends extending in the vehicle width direction are connected to the bases of the pair of front pillars. And a body shell including a frame portion constituted by a front edge portion of a roof panel supported by the pair of front pillars, and four corner portions of a peripheral edge portion of the front window with respect to the frame portion a first adhesive for bonding to a vehicle body superstructure and a second adhesive for bonding the portion excluding the four corners of the peripheral edge portion of the front window to the frame portion, the first the adhesive is less than and 500 MPa 50 MPa Young's modulus at a temperature of 20 ° C., the loss factor have a 0.1 or more and 0.5 or less of characteristics, the second adhesive, It is characterized in that have a greater Young's modulus than the Young's modulus of the serial first adhesive.

The second vehicle body upper structure of the present invention has a substantially quadrilateral rear window, a pair of rear pillars to which the rear window is fixed, and both ends extending in the vehicle width direction are connected to the bases of the pair of rear pillars. A body shell including a frame portion constituted by a deck portion and a rear edge portion of a roof panel supported by the pair of rear pillars, and a four corner portion of a peripheral edge portion of the rear window are bonded to the frame portion . 1 is a vehicle body superstructure comprising a first adhesive and a second adhesive for adhering a portion excluding the four corners of a peripheral portion of the rear window to the frame portion , wherein the first adhesive is not less than and 500MPa or less 50MPa Young's modulus at a temperature of 20 ° C., the loss factor have a 0.1 or more and 0.5 or less of characteristics, the second adhesive, Young said first adhesive Rate It is characterized in that to have a also a large Young's modulus.

According to this invention, the front window (rear window) is a first adhesive having the characteristics that the Young's modulus at a temperature of 20 ° C. is 50 MPa or more and 500 MPa or less, and the loss coefficient is 0.1 or more and 0.5 or less. Is used to bond and fix to the frame portion of the body shell. That is, an adhesive having a Young's modulus at room temperature smaller than that of a conventionally used adhesive and a loss factor within a predetermined range is used. In other words, an adhesive that is easily elastically deformed with a small load and has a predetermined damping performance is used. As a result, when the frame portion of the body shell vibrates (deforms), first, the first adhesive that receives the vibration of the frame portion of the body shell is elastically deformed, and then the front window ( The rear window) follows the deformation direction of the frame. In particular, since the front window (rear window) is a member having a large mass, if such an action is repeated, the front window (rear window) and the first adhesive function as a unit as a damper. Vibration energy is absorbed efficiently. In particular, the range of Young's modulus and loss factor of the first adhesive is determined on the basis of vibrations in the frequency range of 15 to 30 Hz that are likely to occur during use of an automobile. It is possible to effectively dampen the vibration in the predetermined frequency region that acts.

  In addition, a stud pin is provided at a peripheral portion of the front window or the rear window so as to protrude toward the vehicle interior side, and the front window or the rear window has a pin insertion hole formed in the frame portion. It is preferable that the stud pin is positioned by being inserted into the stud pin, and the stud pin is provided so that at least a tip portion of the stud pin can be detached from the pin insertion hole.

According to the present invention, when the front window or the rear window is assembled, a part of the stud pin is inserted into the pin insertion hole, and the frame portion and the stud pin are engaged, so that the front window or the rear window is attached to the frame portion. Is accurately positioned. Further, after the front window or the rear window is bonded to the frame portion, the stud pin and the frame portion are disengaged by detaching the tip end portion of the stud pin, and the deformation of the first adhesive is allowed. Is done.

  The stud pin includes a base portion fixed to a peripheral portion of the front window or the rear window, and a pin portion that is detachably provided with respect to the base portion and has a distal end side inserted into the pin insertion hole. It is preferable to have.

  According to the present invention, the stud pin is constituted by two separate bodies in which the pin portion is detachable from the base portion, so that both the base portion and the pin portion have a simple structure. The state where the frame portion and the stud pin are engaged with each other, and after the bonding, the pin portion is detached from the base portion and the engagement between the frame portion and the stud pin is released. Can be realized.

  The base portion is formed with an internal thread portion, and the pin portion is formed with an external thread portion that engages with the internal thread portion of the base portion at one end portion, and the external thread portion at the other end portion. It is preferable that a tool engaging portion for engaging a jig for screwing into the female screw portion is formed.

  According to this invention, since the tool engaging portion is formed on the other end of the pin portion, it is easy to engage the tool with the other end portion of the pin portion, and the male screw portion of the pin portion is screwed to the female screw portion of the base portion. This makes it easier to work. In particular, the work of detaching the pin portion of the stud pin located at a place where it is difficult to work such as a ceiling portion from the vehicle interior side is facilitated.

  According to the present invention, it is possible to efficiently attenuate the vibration in the low frequency region acting on the front window or the rear window.

  Hereinafter, the vehicle body upper structure of the present embodiment will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 1 is a view showing a bonding position of the front window 10F fixed to the body shell 2. As shown in FIG.

  As shown in FIG. 1, the vehicle body upper structure of the first embodiment includes a substantially quadrilateral front window 10F, a body shell 2 including a frame portion to which the front window 10F is fixed, and the front window 10F as a body shell 2. And an adhesive 12 that adheres to the frame portion.

  The front window 10F is a large glass positioned in front of the driver's seat. Adhesive 12 is applied to the periphery of the front window 10F on the vehicle interior side so as to make one round of the periphery. Further, a stud pin 13 (see FIG. 3), which will be described in detail later, is fixed on the surface on the vehicle interior side of the front window 10F at several positions inward from the position where the adhesive 12 is applied.

  2 is a cross-sectional view taken along the line II-II in FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. FIG. 5 is a cross-sectional view taken along the line VV in FIG.

  The body shell 2 is a steel plate member that constitutes a vehicle body portion of the vehicle, and is a member that greatly affects strength, rigidity, durability, collision safety, vibration, noise, riding comfort, and the like. As shown in FIGS. 1 to 5, the substantially quadrilateral frame portion that supports the edge portion of the front window 10 </ b> F is a pair of front pillars 22 that are pillars positioned on the left and right front sides of the vehicle in the body shell 2. And a front edge of the roof panel 21 supported by a pair of front pillars 22 and a front header 23 extending in the vehicle width direction, and extending in the vehicle width direction, with both ends being a pair of outer plates constituting the roof A cowl portion 25 is provided so as to be connected to the base portion of the front pillar 22.

  FIG. 6 is a view for explaining the deformation of the frame portion that supports the front window 10F. As shown in FIG. 6, when a load is applied to the body shell 2, the frame portion is easily deformed as shown by a two-dot chain line in FIG. 6. Specifically, the four sides of the frame portion are not bent, and the four sides are distorted so that the four corner portions are separated from the normal positions, respectively, while maintaining a substantially straight shape. This is a phenomenon similar to so-called match box deformation, in which the outer frame portion of the match box with the sliding inner box removed is deformed into a parallelogram with a slight external force and is crushed. That is, the four corner portions of the frame portion are more easily deformed than the middle portion. In the present embodiment, the deformation of the four corners of the frame portion prevents a large stress from being generated locally in the front window 10F, and the front window 10F and the adhesive 12 are integrated. In order to attenuate the vibration of the frame portion (that is, the body shell 2), a special adhesive 12 is used for joining the front window 10F and the frame portion.

  The adhesive 12 is applied to the surface of the front window 10F on the vehicle interior side so as to go around the periphery. Thereby, the adhesive 12 seals the gap between the front window 10F and the frame portion in a state where the front window 10F is assembled to the frame portion of the body shell 2. The adhesive 12 is a surface on the vehicle interior side of the front window 10F, and is a surface on the vehicle interior side of the front window 10F and the first adhesive 12a applied to the four corners of the peripheral portion of the front window 10F. , And a second adhesive 12b applied to a peripheral portion (hereinafter referred to as an intermediate portion) excluding the four corners of the front window 10F.

  Specifically, the first adhesive 12a connects the upper surface of the flange 22a at the upper end portion and the lower end portion of the pair of front pillars 22 and the surfaces on both sides of the windshield 10F on the vehicle interior side. Adhering along the longitudinal direction of (see FIG. 4). Further, the first adhesive 12a is an upper surface of both outer side portions in the vehicle width direction of the extending portion 21a provided to extend forward from the front edge portion of the roof panel 21, and an upper side portion of the windshield 10F. The vehicle interior side surface is bonded along the vehicle width direction (see FIGS. 2 and 3). Further, the first adhesive 12a bonds the upper surface of both the outer side portions of the cowl portion 25 in the vehicle width direction and the lower side portion of the windshield 10F and the surface on the vehicle interior side in the vehicle width direction (see FIG. 5).

  In addition, the second adhesive 12b is formed on the upper surface of the flange 22a of the intermediate portion (the portion excluding the upper end portion and the lower end portion) of the pair of front pillars 22 and on both sides of the windshield 10F and on the vehicle interior side surface. Are bonded along the longitudinal direction of the front pillar 22. The second adhesive 12b includes an upper surface of an intermediate portion (a portion excluding both outer sides in the vehicle width direction) of the extended portion 21a provided to extend forward from the front edge portion of the roof panel 21, and the windshield. The surface on the vehicle interior side that is the upper side of 10F is bonded along the vehicle width direction. In addition, the second adhesive 12b passes the upper surface of the intermediate portion of the cowl portion 25 (the portion excluding both outer sides in the vehicle width direction) and the lower side portion of the windshield 10F and the surface on the vehicle interior side in the vehicle width direction. Adhere along.

  In the present embodiment, as the first adhesive 12a, an adhesive having predetermined characteristics with respect to Young's modulus and loss factor is used.

  Specifically, the Young's modulus of the first adhesive 12a is 50 MPa or more and 500 MPa or less at a temperature of 20 ° C. If the Young's modulus of the first adhesive 12a is less than 50 MPa, it tends to be difficult to ensure the structural strength for attaching the front window 10F to a predetermined position of the frame portion. If the Young's modulus of the first adhesive 12a exceeds 500 MPa, the first adhesive 12a tends not to be elastically deformed when a predetermined load is applied.

  Further, the loss factor of the first adhesive 12a is not less than 0.1 and not more than 0.5 at a temperature of 20 ° C. If the loss factor of the first adhesive 12a is less than 0.1, the effect of damping the vibration in a short time tends to be difficult to obtain, and the loss factor of the first adhesive 12a is 0.5. When it exceeds, it tends to be difficult to obtain a predetermined Young's modulus. Here, the loss coefficient is an index indicating damping performance, and means that the larger the loss coefficient, the more efficiently the vibration energy is dissipated. FIG. 7 is a kinematic viscosity characteristic diagram of the adhesive. The loss coefficient is represented by the ratio (E ″ / E ′) of the loss elastic modulus E ″ to the storage elastic modulus E ′ shown in FIG.

  Further, regarding the selection of the first adhesive 12a, the loss coefficient and Young's modulus when the temperature of the first adhesive 12a is 20 ° C. based on the vibration of a frequency of 15 to 30 Hz that is likely to occur when the automobile is used. Is selected using a nomograph so as to fit within a predetermined range. Here, the nomograph is a chart in which a functional relationship between variables such as frequency, temperature, Young's modulus, and loss factor is displayed as a graph, and a numerical relationship between the variables can be easily read.

  In this way, the first adhesive 12a having a Young's modulus and a loss coefficient that fall within a predetermined range from the temperature at which the automobile is normally used and the vibration frequency that is likely to occur when the automobile is used. By specifying, for example, the first adhesive 12a exhibits extremely effective damping performance against vibration having a frequency of 15 Hz and an amplitude of 0.1 mm at a temperature of 20 ° C. Even when the temperature of the adhesive is away from 20 ° C. during use of the automobile, the properties of the adhesive such as the loss factor do not change abruptly.

  As the first adhesive 12a, for example, an epoxy resin semi-structure adhesive, an elastomer (rubber) adhesive, or the like can be used. Epoxy resin-based semi-structure adhesives have a peak loss factor and a low Young's modulus in the temperature range around 20 ° C where automobiles are normally used. (See FIG. 8). In addition, an elastomeric (rubber-based) adhesive has a loss coefficient and a Young's modulus both within a range suitable for suppressing vehicle vibration in a temperature range near 20 ° C. in which an automobile is normally used. It has the following characteristics (see FIG. 9). Examples of the epoxy resin semi-structure adhesive include trade name “AD Sealer” manufactured by Sunstar Giken Co., Ltd., and trade name “EP001” manufactured by Cemedine Co., Ltd. Examples of the elastomeric (rubber-based) adhesive include trade name “Penguin Seal” manufactured by Sunstar Giken Co., Ltd.

  The second adhesive 12b is not particularly limited as long as the structural strength for attaching the front window 10F to a predetermined position of the frame portion of the body shell 2 can be secured. For example, an adhesive for an epoxy resin structure can be used. Examples of the epoxy resin structural adhesive include trade name “Penguin Cement” manufactured by Sunstar Giken Co., Ltd., trade name “EP008” manufactured by Cemedine Co., Ltd., and trade name “EP330” manufactured by Cemedine Co., Ltd. Can be mentioned.

  FIG. 10 is a graph for explaining a difference in distribution state due to a difference in adhesive based on the relationship between the loss coefficient and the Young's modulus. As shown in FIG. 10, "AD Sealer", "EP001" and "Penguin Seal" that can be used as the first adhesive 12a, and "Penguin Cement" that can be used as the second adhesive 12b, " There is a difference in distribution state between “EP008” and “EP330”. That is, in the first adhesive 12a, the first adhesive 12a is widely distributed in the Y-axis direction (the direction in which the loss coefficient increases), and is narrowly distributed in a low region in the X-axis direction (region having a low Young's modulus). On the other hand, in the second adhesive 12b, it is distributed narrowly in a low region in the Y-axis direction (region having a low loss coefficient) and widely distributed in a region in the high X-axis direction (direction in which the Young's modulus increases). .

  In this way, by using the first adhesive 12a and the second adhesive 12b in accordance with the joining position of the front window 10F, the first adhesive 12a is used at the four corners where the amount of displacement of the frame portion is large. While elastically deforming, the vibration can be quickly damped. On the other hand, in the intermediate portion where the amount of displacement of the frame portion is small, the adhesive strength to the frame portion of the front window 10F is ensured by the second adhesive having high adhesive strength. be able to.

  That is, when receiving a load that deforms the frame portion of the body shell 2, the front window 10F that is bonded and fixed by the adhesive 12 operates as follows. When the frame portion of the body shell 2 is greatly deformed at its four corners, first, the first adhesive 12a that receives the vibration of the frame portion of the body shell 2 is elastically deformed, and then the front window with a time delay. 10F follows the deformation direction of the frame portion. When such an action is repeated, the front window 10F and the first adhesive 12a function together as a damper, and vibration energy is efficiently absorbed. Particularly, since the front window 10F is a large member having a large mass, the damping performance is effectively exhibited.

  FIG. 11 is a cross-sectional view taken along the line III-III in FIG. 1 and shows a state where the pin portion 13b of the stud pin 13 is detached from the base portion 13a.

  In the present embodiment, the stud pin 13 is used to prevent the front window 10F from being displaced with respect to the frame portion by its own weight until the adhesive 12 is solidified. As shown in FIGS. 3 and 11, the front window 10F is assembled to the body shell 2 with the stud pin 13 fixed at a predetermined position with respect to the front window 10F. Specifically, when the front window 10F is assembled, a part of the stud pin 13 (a pin part 13b described later) is inserted into the insertion part 21a1 formed at a predetermined position of the extension part 21a of the roof panel 21 in the vehicle interior direction. The front window 10 </ b> F is positioned with respect to the frame portion of the body shell 2.

  12A and 12B are views for explaining the stud pin 13. FIG. 12A shows a state in which the pin portion 13b is erected with respect to the base portion 13a, and FIG. 12B shows the pin portion from the base portion 13a. The state which 13b was made to detach | leave is shown.

  The stud pin 13 is a peripheral portion of the front window 10F, and is fixed at a predetermined position with respect to the surface of the front window 10F on the vehicle interior side. Specifically, the stud pin 13 is provided so that the position of the insertion hole 21a1 and the position of the stud pin 13 correspond to each other when the front window 10F is assembled to the body shell 2 in a normal posture. ing. When the front window 10F is assembled to the body shell 2, a part of the stud pin 13 is sandwiched between the front window 10F and the frame portion.

  As shown in FIG. 12, the stud pin 13 includes a base portion 13a fixed to the front window 10F and a pin portion 13b provided to be detachable from the base portion 13a.

  The base portion 13a is a member having a flat rectangular parallelepiped shape, and one surface is a surface on the vehicle interior side of the front window 10F, and is fixed to the peripheral portion of the front window 10F. The base portion 13a is formed with a concave female screw portion 13a1 on the other surface.

  The pin portion 13b has a substantially cylindrical shape whose outer diameter is set substantially equal to the inner diameter of the insertion hole 21a1. A male screw portion 13b2 is formed at one end portion of the pin portion 13b, and a cross-shaped groove (hereinafter referred to as a tool engagement portion) 13b1 is formed at the other end portion of the pin portion 13b. ing. The tool engaging portion 13b1 is a portion for engaging the tip of a tool such as a plus driver or a minus screwdriver when the pin portion 13b is connected to the base portion 13a. Thus, since the tool engaging portion 13b1 is formed at the other end of the pin portion 13b, the tool can be easily engaged with the pin portion 13b, and the male screw portion of the pin portion is used as the female screw portion of the base portion using the tool. Easy to screw. Therefore, even if the stud pin 13 is provided at a position where it is difficult to work, the pin portion 13b can be attached and detached smoothly. The pin portion 13b is substantially perpendicular to one surface of the base portion 13a when the male screw portion 13b2 is screwed to the female screw portion 13a1 of the base portion 13a, that is, substantially perpendicular to the surface direction of the front window 10F. Established.

  The base portion 13a and the pin portion 13b are separate members, but when the front window 10F is bonded, the base portion 13a and the pin portion 13b function as a unit, and after the front window 10F is bonded, the pin portion 13b. Only is removed from the base 13a. Thus, by removing the pin portion 13b from the base portion 13a, the engagement between the pin portion 13b and the extended portion 21a of the roof panel 21 is released, and the front window 10F is bonded to the roof panel 21 with the adhesive 12. It will be in the state of contact through only.

  Therefore, the deformation of the first adhesive 12a is not restricted by the pin portion 13b of the stud pin 13, and a state in which the first adhesive 12a is easily deformed flexibly is realized. Since the stud portion 13 is composed of two separate bodies in which the pin portion 13b can be detached from the base portion 13a, both the base portion 13a and the pin portion 13b have a simple structure. The base portion 13a is integrated with the frame portion and the stud pin 13 engaged, and after bonding, the pin portion 13b is detached from the base portion 13a, and the frame portion and the stud pin 13 are engaged. Two states can be realized, the unsolved state.

  According to the above embodiment, the front window 10F is a first adhesive having the characteristics that the Young's modulus at a temperature of 20 ° C. is 50 MPa or more and 500 MPa or less, and the loss coefficient is 0.1 or more and 0.5 or less. 12a is used to adhere and fix to the frame portion formed by the front edge portion of the roof panel 21, the pair of front pillars 22 and the cowl portion 25. That is, an adhesive having a Young's modulus at room temperature smaller than that of a conventionally used adhesive and a loss factor within a predetermined range is used as the first adhesive 12a. In other words, an adhesive that is easily elastically deformed with a small load and has a predetermined damping performance is used as the first adhesive 12a. As a result, when the frame portion of the body shell 2 vibrates (deforms), first, the first adhesive 12a that receives the vibration of the frame portion of the body shell 2 is elastically deformed, and then with a time delay. The front window 10F follows the deformation direction of the frame portion. When such an action is repeated, the front window 10F and the first adhesive 12a function together as a damper, and vibration energy is effectively absorbed. In particular, the range of Young's modulus and loss factor of the first adhesive 12a is determined on the basis of vibrations in the frequency range of 15 to 30 Hz that are likely to occur when the automobile is used, and thus acts on the front window 10F. It is possible to effectively attenuate vibrations in a predetermined frequency region. In addition, vibration transmitted from the front window 10F to the roof panel 21 can be reduced, and vibration of the roof panel 21 is also suppressed, so that riding comfort is greatly improved. Further, by efficiently attenuating the vibration, it is possible to avoid a large concentration of local stresses occurring at the four corners of the front window 10F, and it is not necessary to further increase the strength of the front window 10F.

  In the above-described embodiment, the front window 10F provided in front of the vehicle is extended with an adhesive having a predetermined characteristic from the front edge of the roof panel 21, the pair of front pillars 22, and the cowl portion. Although the form fixed to the frame part comprised by 25 was demonstrated, this invention is not limited to this. FIG. 13 is a view showing a bonding position of a rear window (rear glass) 10R fixed to the vehicle body. For example, as shown in FIG. 13, the rear window 10 </ b> R provided at the rear of the vehicle may be fixed to the frame portion of the body shell 2 with the adhesive 12 having the same characteristics as in the first embodiment. Good.

  In this case, the frame portion is constituted by an extending portion extending from the rear edge of the roof panel 21, a pair of rear pillars 27, and a deck portion 26 extending from the base end portion of the rear pillar 27 in the vehicle width direction. Even in this case, since the frame portion is easily deformed as shown in FIG. 6, four corners of the peripheral portion of the rear window 10 </ b> R are bonded to the frame portion with the first adhesive 12 a and the remaining portion. Is bonded with the second adhesive 12b. Even when the rear window 10R is fixed to the rear of the vehicle body, the body shell of the rear window 10R can be obtained by using the stud pin 13 whose pin portion 13b can be detached from the base portion 13a as shown in FIG. In addition to ensuring the positioning accuracy with respect to 2, the elastic deformation of the first adhesive 12a can be allowed, and the vibration damping effect can be further enhanced.

  That is, after the first adhesive 12a and the second adhesive 12b are cured, the pin portion 13b of the stud pin 13 is detached, and the four corner portions of the rear window 10R are elastically deformed on the first adhesive 12a. Secure to. Thereby, even if the four corners of the frame portion are repeatedly deformed at the four corners of the rear window 10R, the first adhesive 12a absorbs energy by the elastic deformation and effectively attenuates the vibration. Therefore, it can be avoided that large stresses are locally concentrated on the four corners of the rear window 10R.

  Moreover, although the said embodiment demonstrated the form which adhere | attached only the front window 10F of the vehicle body on the frame part with the 1st adhesive agent 12a which has a predetermined characteristic, this invention is not limited to this. The front window 10F is bonded to the body shell 2 with the first adhesive 12a having predetermined characteristics, and the rear window 10R is bonded to the body shell 2 with the first adhesive 12a having predetermined characteristics. It may be a form to do. In this case, vibration transmitted to the roof panel 2 from the upper edge portions of the front window 10F and the rear window 10R can be greatly reduced.

It is a figure which shows the adhesion position of the front window fixed to the vehicle body. It is sectional drawing in the II-II position of FIG. It is sectional drawing in the III-III position of FIG. It is sectional drawing in the IV-IV position of FIG. It is sectional drawing in the VV position of FIG. It is a figure for demonstrating the deformation | transformation of the frame part which supports a front window or a rear window. It is a kinematic viscosity characteristic figure of an adhesive agent. It is a graph which shows the characteristic of the adhesive agent for epoxy resin system semi-structures. It is a graph which shows the characteristic of an elastomer type (rubber type) adhesive agent. It is a graph for demonstrating the difference in the distribution state by the difference in an adhesive based on the relationship between a loss coefficient and a Young's modulus. It is sectional drawing in the III-III position of FIG. 1, and shows the state from which the pin part of the stud pin was removed from the insertion hole formed in the frame part. It is a figure for demonstrating a stud pin, (a) shows the state by which the pin part was standingly arranged with respect to the base, (b) shows the state which made the pin part remove | separate from the base. It is a figure which shows the adhesion position of the rear window fixed to the vehicle body.

Explanation of symbols

10F Front window 10R Rear window 12a First adhesive (adhesive)
13 Stud pin 13a Base part 13a1 Female thread part 13b Pin part 13b1 Tool engagement part 13b2 Male thread part 2 Body shell 21 Roof panel 21a Extension part (frame part)
21a1 Pin insertion part 22 Front pillar (frame part)
25 cowl (frame)
26 Deck part (frame part)
27 Rear pillar (frame part)

Claims (5)

A substantially quadrilateral front window;
A pair of front pillars to which the front window is fixed, a cowl portion extending in the vehicle width direction and having both ends connected to the bases of the pair of front pillars, and a roof panel supported by the pair of front pillars A body shell including a frame portion constituted by a front edge portion;
A first adhesive for bonding the four corners of the peripheral edge of the front window to the frame portion, the portion excluding the four corners of the peripheral edge portion of the front window second to adhere to the frame portion A vehicle body superstructure comprising an adhesive ,
The first adhesive is
Young's modulus at a temperature of 20 ° C. is 50 MPa or more and 500 MPa or less,
Loss factor have a 0.1 or more and 0.5 or less properties,
The second adhesive is
Vehicle superstructure to have a larger Young's modulus than the Young's modulus of the first adhesive.
A substantially quadrilateral rear window;
A pair of rear pillars to which the rear window is fixed, a deck part extending in the vehicle width direction and having both ends connected to the bases of the pair of rear pillars, and a rear edge part of the roof panel supported by the pair of rear pillars A body shell including a frame portion constituted by:
A first adhesive for bonding the four corners of the peripheral edge of the rear window relative to the frame portion, a second adhering the portion excluding the four corners of the peripheral edge of the rear window relative to the frame portion A vehicle body superstructure comprising an adhesive ,
The first adhesive is
Young's modulus at a temperature of 20 ° C. is 50 MPa or more and 500 MPa or less,
Loss factor have a 0.1 or more and 0.5 or less properties,
The second adhesive is
Vehicle superstructure to have a larger Young's modulus than the Young's modulus of the first adhesive.
A stud pin is provided at the peripheral portion of the front window or the rear window so as to protrude toward the vehicle interior side,
The front window or the rear window is positioned by inserting the stud pin into a pin insertion hole formed in the frame portion,
3. The vehicle body upper structure according to claim 1, wherein the stud pin is provided so that at least a tip portion of the stud pin can be detached from the pin insertion hole.   The stud pin has a base portion fixed to a peripheral portion of the front window or the rear window, and a pin portion that is detachably provided with respect to the base portion and has a distal end side inserted into the pin insertion hole. The vehicle body upper structure according to claim 3. The base portion is formed with a female screw portion,
The pin portion is formed with a male screw portion screwed into the female screw portion of the base portion at one end portion, and a jig for screwing the male screw portion into the female screw portion is engaged with the other end portion. The vehicle body superstructure according to claim 4, wherein a tool engaging portion is formed.

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