JPH0348956Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a spare tire holding structure for a motor vehicle, such as a van-type vehicle, in which the spare tire is stored and held on the underside of the floor panel at the rear of the vehicle body. be.

(Prior art) In automobiles in which the spare tire is stored and held on the lower surface of the floor panel at the rear of the vehicle, one end located on the front side of the vehicle body is placed on the lower surface of the floor panel, vertically and vertically relative to the vehicle body. a spare tire holding member that is rotatably supported in a direction and capable of holding a spare tire on its upper surface side; and a spare tire holding member that is suspended from the lower surface of the floor at the rear end of the vehicle body and located on the rear side of the vehicle body of the spare tire holding member. A locking member that acts to removably lock the other end of the spare tire holding member is provided, and the spare tire can be stored and held in a state in which the other end of the spare tire holding member is locked to the locking member. On the other hand, the spare tire holding structure is such that the spare tire can be taken out or attached when the other end of the spare tire holding member is separated from the locking member.

By the way, in such a spare tire holding structure, since the locking member is located on the rear side of the vehicle body than the spare tire storage space and is hung vertically from the bottom surface of the floor panel, the locking member is not engaged when the spare tire is installed or removed from the storage position. It is necessary to lower the spare tire holding member to a position where the stop member and the spare tire do not interfere with each other in the longitudinal direction of the vehicle body. However, especially when the rear tire is punctured, the distance between the vehicle body and the ground is smaller than when the front tire is punctured, so the amount by which the spare tire holding member can be lowered becomes smaller due to its relative relationship with the ground. In some cases, it may become difficult to remove and install the spare tire.

To prevent this, set the spare tire holding position as high as possible on the vehicle body and increase the distance between the spare tire holding member and the ground (that is, the distance between the locking member and the ground). good. However, in this case, the position of the floor panel is raised by the increase in the spare tire holding position, which is unfavorable in terms of securing cargo space or improving workability when loading and unloading cargo.

Against this background, the locking member installed vertically at the rear of the vehicle body is configured to be movable up and down, and when the spare tire is attached or removed, the locking member is lifted above the position when the spare tire is stored and held. There is a tire that secures a wider distance between the locking member and the ground when the tire is attached or detached (Japanese Utility Model Publication No. 139470/1983).

However, in this known example, all changes in the vertical position of the locking member when attaching and detaching the spare tire are performed manually, which makes the operation troublesome, and the work itself is especially difficult for spare tires. Due to the mounting position of the tire, there was also the problem that the work was difficult because the worker had to bend down to perform the work.

(Purpose of the invention) The present invention is an attempt to solve the problems pointed out in the above section of the prior art. The purpose of the present invention is to propose a spare tire holding structure that can simplify the work of attaching and detaching the spare tire and improve workability.

(Means for Achieving the Object) As a means for achieving the above object, the present invention provides a structure in which one end is supported on the underside of the floor of an automobile so as to be rotatable in the vertical direction with respect to the vehicle body, and In the moving position, the other end of the spare tire holding member is engaged with and held by a locking member provided vertically from the floor panel, and the spare tire placed on the upper surface side of the spare tire holding member can be stored and held on the lower surface side of the floor. In the spare tire holding structure, the locking member is rotatably supported vertically with respect to the vehicle body, and the other end of the spare tire holding member is engaged and held at a lower position and a lower position. It is possible to selectively position the spare tire holding member to an upward movement position where the engagement with the spare tire holding member is released, and it is constantly urged to a downward movement position by a biasing mechanism. Between the tire holding member and the spare tire holding member, when the spare tire holding member is rotated from the upward position to the downward position, the locking member is moved upward from the downward position against the biasing force of the biasing mechanism. A connecting member is disposed that interlocks and connects the two so that the spare tire holding member can be rotated toward the position side, and the connecting member is provided with a connecting member that is independent of the operation of the connecting member when the spare tire holding member is in the upward movement position. The present invention is characterized in that a rotation permitting mechanism is provided for permitting rotation of the locking member from the lower position to the upper position.

(Function) In the present invention, by using the above-mentioned means, when the spare tire is attached to and removed from the storage position, that is, when the spare tire holding member is rotated downward from its upward movement position and the spare tire in the storage state is taken out, this In conjunction with the downward rotation of the spare tire holding member, the locking member is automatically rotated from its downward position to its upward position by the interlocking action of the connecting member;
The distance between the lower end of the locking member and the ground is expanded to ensure sufficient movement space for the spare tire.

On the other hand, when storing the spare tire, that is, when rotating the spare tire holding member from its lower position to its upper position and locking one end of the rear side of the vehicle body to the locking member, the spare tire is As the holding member moves upward, the linking action of the connecting member to the locking member is released, and the locking member is automatically returned from its upward movement position to its downward movement position by the urging force of the urging mechanism. When the spare tire holding member reaches its upward movement position, it engages and holds the spare tire holding member.

On the other hand, when the spare tire holding member is in its upward movement position, the locking member is rotated from its downward movement position to its upward movement position irrespective of the operation of the spare tire holding member, that is, the operation of the connecting member. Therefore, when taking out the spare tire or storing the spare tire, the locking member can be operated independently and connected to the spare tire holding member without depending on the operation of the spare tire holding member. It is possible to perform an operation to release the engagement.

(Effects of the invention) Therefore, according to the spare tire holding structure of the invention, the following effects can be obtained.

(1) When attaching or removing the spare tire to the storage position, the spare tire holding member is placed vertically on the underside of the floor panel at the rear of the vehicle in conjunction with the rotation operation from the up position to the down position. The locking member is rotated from its lower position to its upper position by the interlocking action of the connecting member, contrary to the movement of the spare tire holding member, so that the lower end of the locking member and the ground are rotated. In order to increase the gap, sufficient movement space for the spare tire is secured below the vehicle body, and the storage position of the spare tire relative to the vehicle body is lowered by the increased distance compared to the case where the locking member is fixedly arranged. This makes it possible to further lower the vehicle body.

(2) Since the above-mentioned locking member is automatically operated in conjunction with the vertical movement of the spare tire holding member, the operator must manually operate the locking member each time the spare tire is attached or removed. The work of attaching and detaching the spare tire is made easier than in the case of the present invention.

(3) When the spare tire holding member is in its upward position, the locking member can be moved from the downward movement position where it engages with the spare tire holding member, regardless of the operation of the spare tire holding member. Since the spare tire holding member can be rotated to the upward position where the engagement is released, the spare tire holding member can be rotated downward while the engagement between the two is securely released. For example, when taking out the spare tire, compared to a structure in which the locking member cannot be disengaged independently of the spare tire holding member, it is possible to remove the spare tire. This further improves the workability during the removal work.

(Embodiment) Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. 1 to 5.

(Structure) FIG. 1 shows the rear part of a van-type vehicle having a spare tire holding structure according to an embodiment of the present invention, in which reference numeral 51 is a floor panel of the vehicle, 52 is a back door, and is a rear bumper, 54 is a rear cross member, 55 is a front cross member, and 56 is a side frame. A spare tire holding device Z for storing and holding the spare tire 30 is provided on the lower surface side of the floor panel 51 at the rear of the vehicle body.

The spare tire holding device Z holds the spare tire 30.
It has a spare tire holding member 1 for holding the tire on the lower surface side of the floor panel 51. As shown in FIGS. 1 and 3, this spare tire holding member 1 is composed of a frame body integrally formed in a substantially U-shape with a steel bar of an appropriate diameter.
a, 1a (the front end of the spare tire holding member) is directed toward the front of the vehicle body, and the intermediate portion 1b (rear end of the spare tire retaining member) of the steel bar is directed toward the rear of the vehicle body, and the lower surface side of the floor panel 51 is It is located in

Front end portions 1a, 1 of this spare tire holding member 1
Rotating pins 5 are fixed coaxially in the horizontal direction to each of a, and the spare tire holding member 1 is provided with a pair of left and right rotating pins 5, 5 on the front cross member 55, respectively. By being pivotally supported by a pair of left and right brackets 3, 3, it is rotatable in the vertical direction (direction of arrow P-Q) about the pivot pins 5, 5, respectively. The spare tire holding member 1 has a locking protrusion 11 provided on the rear end portion 1b of the spare tire holding member 1, as shown by the solid line in FIG.
The spare tire 30 can be stored and held in a state where it is locked to the bolt member 27 (in the following description, the rotating position of the spare tire holding member 1 at this time will be referred to as the upward movement position). .

Furthermore, a swing lever 6 is fixed to one of the left and right pivot pins 5, 5, and a wire is connected to the movable end of the swing lever 6 via a spring 10. 9
One end 9a of the two is connected. This wire 9
function as a connecting member for operating the locking member 2, which will be described later, and include a bracket 7 provided on the front cross member 55 and a bracket 8 provided on the rear cross member 54 (see FIG. 2). It is pulled out to the front end portion 1a side of the spare tire holding member 1 via.

On the other hand, the front end portion 1a of the spare tire holding member 1,
As shown in FIG. 1, FIG. 2, and FIG. 5, a locking protrusion 11 is disposed on 1a to protrude outward (towards the rear of the vehicle body). This locking protrusion 11 is formed with a locking groove 12 extending in the vehicle width direction into which a bolt member 27 of a locking member 2 to be described later is removably inserted and locked.

As shown in FIGS. 1 to 4, the locking member 2 consists of a pair of plate members that are integrally connected and fixed at appropriate intervals in the thickness direction, that is, a first plate member 21 having a substantially circular shape and a first plate member 21 having a substantially fan shape. a second plate member 22;
A cylindrical member 26 with a screw hole 29 fixed on one side of the first plate member 21 so as to extend outward from the first plate member 21; Screw hole 29 of cylindrical member 26
The bolt member 27 is screwed into the bolt member 27. Further, the first plate member 21 and the second plate member 22 are respectively formed with arc-shaped elongated holes 23, 23 that overlap and communicate with each other in the thickness direction. Note that this first plate member 21 and the second
A wire latching pin 25 is slidably fitted into elongated holes 23, 23 formed in the plate member 22 so as to straddle the two.

The locking member 2 configured as described above has a pivot shaft 24 attached to the center of curvature of the elongated holes 23, 23.
The rear cross member 54 is pivotably supported on the vertical wall portion 41 of the bracket 4 provided at the lower end of the rear cross member 54 so as to be rotatable in the direction of the arrow RL within a substantially vertical plane along the vehicle width direction. ing. In this case, the rotation range and rotation position of this locking member 2 are as follows:
A pair of left and right stopper parts provided on the bracket 4, that is, a first stopper part 42 and a second stopper part 4
It has come to be regulated by 3.

That is, in this embodiment, the locking member 2 is in a downward position where the cylindrical member 26 is suspended from the pivot shaft 24 as shown by the solid line in FIG. '), it can be rotated by an appropriate angle in the direction of arrow L from the lower movement position, and can freely rotate between two positions, that is, the upper movement position. The lower position of the locking member 2 is located between one side 21a of the first plate member 21 and the first side of the bracket 4.
The stopper portions 42 abut and engage with each other in the direction of arrow R, and in the upward movement position, the cylindrical member 26 and the second stopper portion 43 of the bracket 4 abut and engage with each other in the direction of arrow L. The respective positions are determined by the following.

Further, a spring 28 (corresponding to the biasing mechanism in the claims) is provided between the locking member 2 and the bracket 4, as shown in FIG. is always biased in the direction of arrow R, that is, toward the downward movement position, by the spring force of the spring 28.

Further, the wire latching pin 25 of the locking member 2 has the other end 9b of the wire 9 as shown in FIG.
are connected, but in this case, this wire 9
The relative position of the wire and the locking member 2 is as shown by the solid line in FIG. The latching pin 25 is set to be close to and opposite to the end 23a of the elongated hole 23 on the arrow L side.

Therefore, when the spare tire holding member 1 is positioned at the upward movement position as shown by solid lines in FIGS. 1 and 2, the locking member 2 is positioned at the downward movement position by the spring force of the spring 28. At the same time, if necessary, loosen the bolt member 27 to release the fastening force with the locking protrusion 11 and rotate it by hand in the direction of arrow L to release the engagement with the locking protrusion 11. It is becoming possible to do so. In addition, at this time, wire latching pin 25
slides in the elongated hole 23, and no operating force is applied to the wire 9. That is, in this example,
The elongated hole 23 constitutes a rotation permitting mechanism within the scope of the utility model registration claims. On the other hand, when the spare tire holding member 1 is rotated downward from its upward position with the locking protrusion 11 of the spare tire holding member 1 disengaged from the bolt member 27 of the locking member 2, A tensile force is applied to the wire 9 by the lever action of the swing lever 6, and the locking member 2 is forcibly rotated from its lower position to its upper position. In this case, after the locking member 2 has been positioned at the upward movement position, when the spare tire holding member 1 is further rotated downward, the spring 10 is appropriately expanded and the wire 9 is subjected to excessive force. It acts to prevent the operation force from acting.

Conversely, when the spare tire holding member 1 is rotated back from its downward position to its upward position, the tensile force applied to the wire 9 is released as the spare tire holding member 1 moves upward. The locking member 2 is automatically rotated back from its upward movement position to its downward movement position by the spring force of the spring 28.

In addition, in FIG. 1, the reference numeral 13 is a fuel tank.

(How to use and its function) Next, how to use this spare tire holding device Z and its function will be explained. .

The relative relationship between the rear of the car and the road surface is
This varies depending on various conditions such as the loading situation in the luggage compartment and the presence or absence of a puncture in the rear tire.
In FIG. 1, the road surface indicated by numeral 31A is the relative road surface position with respect to the rear of the vehicle when the vehicle is empty and the rear tires are normal (no puncture), and the road surface indicated by numeral 31B is the road surface position when the vehicle is loaded. The road surface position when the rear tires are normal, and the road surface indicated by reference numeral 31C is the road surface position when the rear tires are loaded and the rear tires are punctured (particularly, the road surface position at this time is hereinafter referred to as the road surface at the time of the puncture).

Therefore, in order to be able to attach and detach the spare tire 30 without any problem under any conditions, it is necessary to connect the spare tire 30 to the road surface 31C through the gap between the road surface 31C and the lower end of the locking member 2 at the time of a puncture. The spare tire 30 placed on the spare tire holding member 1' is taken out to the rear side of the vehicle body, or conversely, the spare tire 30 placed on the rear side of the vehicle body is placed on the spare tire holding member 1'. need to be able to do so.

Conventionally, in order to make this possible, for example, the spare tire holding position relative to the car body was set at a relatively high position to widen the distance between the spare tire holding position and the road surface, or the spare tire holding position was set vertically from the car body. When attaching or removing a spare tire, a part of the tire holding device is manually pulled upwards to widen the distance between the spare tire holding position and the road surface. There is a problem in that the position of the floor panel becomes higher due to the higher position of the vehicle, which leads to a higher floor of the vehicle body.In the latter case, it is already known that there is a problem in that the task of attaching and detaching the spare tire is complicated. As stated above.

The spare tire holding device Z of this embodiment solves the above two problems at the same time by applying the present invention. Hereinafter, we will explain how to use this spare tire holding device Z and its function, taking as an example the case where the spare tire holding device Z is in a stacked state and when the rear tire is punctured, and we will explain both when the spare tire 30 is being removed and when it is being stored in this case. explain.

(During spare tire removal work) This is a case where the spare tire 30 is taken out from its stored state to the rear side of the vehicle body.
The state shown in solid lines in FIGS. 1 and 2, respectively, is that the bolt member 27 of the locking member 2 in the downward movement position is inserted into the locking groove 12 of the locking protrusion 11 of the spare tire holding member 1 and is locked. However, the spare tire holding member 1 is positioned at its upward movement position by the locking member 2. Therefore, in this state, first, the bolt member 27 is loosened appropriately to release the fixing effect of the bolt member 27 on the locking protrusion 11 .

Next, the worker slightly lifts up the rear end 1b of the spare tire holding member 1 by hand, and in this state, manually rotates the locking member 2 slightly in the direction of arrow L to lock the locking member 2. The bolt member 27 is removed from the locking groove 12 of the locking protrusion 11. In this case, this embodiment is configured such that the locking member 2 can be rotated independently of the operation of the spare tire holding member 1 when the spare tire holding member 1 is in the upward movement position. Therefore, the engagement between the spare tire holding member 1 and the locking member 2 can be easily released, and the workability during this engagement release operation can be improved.

After the engagement between the spare tire holding member 1 and the locking member 2 is released, the rear end portion 1b of the spare tire holding member 1 is lowered to the downward movement position so that it is brought into contact with the road surface 31C in the event of a puncture. Figure 1 is shown by chain lines, reference numeral 1').

By the way, in this state, the spare tire 30 placed on the spare tire holding member 1 is at a position indicated by the reference numeral 30A (indicated by a chain line) in FIG. Therefore, from this state, the spare tire 30
When the spare tire 30 is pulled out to the rear of the vehicle body over the locking protrusion 11', the spare tire 30
As already mentioned, from the point where the spare tire 30 and the locking member 2 are lifted up to the position indicated by , they interfere with each other in the longitudinal direction of the vehicle body, making it difficult to take out the spare tire 30.

However, in this embodiment, by applying the present invention, when the spare tire holding member 1 rotates downward, the locking member 2 is automatically moved from its downward position to its upward position in conjunction with this rotation. Since it is configured to rotate, the lowermost end of the locking member 2 (i.e.,
The position of the bolt member 27) is raised, thereby securing a space for pulling out the spare tire 30 toward the rear of the vehicle body, making it possible to easily take out the spare tire 30.

Thus, the fact that the lowest end position of the locking member 2 when the spare tire 30 is taken out can be raised by the dimension H from the position when the spare tire 30 is in the stored state means that the device having such a function locking member 2
Compared to a case where the spare tire 30 is fixedly arranged, the storage and holding position of the spare tire 30 relative to the vehicle body can be set lower by the dimension H. This means that the mounting position of the floor panel 51 relative to the vehicle body can be lowered to lower the floor of the luggage compartment.

(When Storing the Spare Tire) When storing the spare tire, the spare tire 30 is placed on the spare tire holding member 1 that is in contact with the ground through the lower part of the locking member 2 that is held in the upward movement position.

Next, when the spare tire holding member 1 is rotated in the direction of the arrow Q and positioned at the upward movement position, the locking member 2 is moved by the wire 9 as the rotation operation of the spare tire holding member 1 progresses. Since the rotation regulating action is gradually released, the spring 28
The biasing force automatically returns the rotation from the upward movement position to the downward movement position. Therefore, just before the spare tire holding member 1 is positioned at its upward movement position, the operator moves the locking member 2, which rotates back from the upward movement position to the downward movement side, so that the spare tire holding member 1 is engaged with the spare tire holding member 1. Once the spare tire holding member 1 is stopped at a position where it does not engage with the stop protrusion 11, and the restraining force (manual operation force) on the locking member 2 is released when the spare tire holding member 1 is completely positioned at the upward movement position, the locking is performed. The bolt member 27 of the member 2 is inserted into the locking groove 1 of the locking protrusion 11.
2, and the locking member 2 restricts the downward rotation of the spare tire holding member 1. In this state, by appropriately tightening the bolt member 27 and applying an appropriate fastening force between the locking protrusion 11 and the bolt member 27, the spare tire holding member 1 is firmly connected to the vehicle body. spare tire 30
is stored and held on the lower surface side of the floor panel 51 (the storage and holding work is completed).

As described above, in the spare tire holding device Z of this embodiment, the present invention is applied to the locking member 2.
The rotation operation of the locking member 2 is configured to be performed automatically in conjunction with the rotation operation of the spare tire holding member 1, which is always operated when the spare tire is attached or removed. spare tire 30
It is easier for the operator to perform each attachment/detachment operation, and the workability is improved accordingly.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional view of the main part of the rear part of an automobile body having a spare tire holding structure according to an embodiment of the present invention, FIG. 2 is a view taken along the - arrow in FIG. 1, and FIG. 4 is a view taken in the direction of the - arrow in FIG. 2, and FIG. 5 is a partially sectional view taken in the direction shown in the - arrow of FIG. DESCRIPTION OF SYMBOLS 1... Spare tire holding member, 2... Locking member, 6... Swing lever, 9... Wire (connection member), 21, 22... Plate member, 23...
...Elongated hole (rotation permitting mechanism), 28...Spring (biasing mechanism), 30...Spare tire.

Claims (1)

[Scope of utility model registration request] One end is supported on the underside of the automobile floor so that it can rotate freely in the vertical direction relative to the vehicle body, and in the upward movement position, the other end is engaged with and held by a locking member vertically provided from the floor panel. A spare tire holding structure is provided with a spare tire holding member that can store and hold a spare tire placed on the upper side of the floor on the lower side of the floor, and the above-mentioned locking member is arranged vertically with respect to the vehicle body. selectively positioned at a lower position where the other end of the spare tire holding member can be engaged and held by being rotatably supported in a direction and an upper position where engagement with the spare tire holding member is released; While this is always urged to the downward position by a biasing mechanism, the spare tire holding member is moved from the upward movement position to the downward movement position between the locking member and the spare tire holding member. A connecting member that interlocks and connects the two is arranged so that the locking member can be rotated from the lower position to the upper position against the biasing force of the biasing mechanism when the locking member is rotated to , the connecting member allows the locking member to be rotated from the lower moving position to the upper moving position regardless of the operation of the connecting member when the spare tire holding member is in the upward moving position. A spare tire holding structure characterized by being provided with a rotation allowance mechanism.